Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-tracegrafted

Pull tracing fixes from Steven Rostedt:

 - Fix error output of boot instance creation failure

   Currently if a boot instance creation fails, instead of printing out
   the name of the instance that failed, it prints "(null)". That is
   because it prints "cur_str" that had already been processed by
   strsep(). Print the saved name instead.

   While at it, print the error code of the failure.

 - Fix use-after-free for same named historgrams

   Histograms can be named so that they can be used in multiple events.
   But if the named histogram has a variable attached, the second event
   that uses the named histogram which duplicates it and needs to free
   the original after duplication leaves the old variable in place and
   still visible. If another histogram uses than variable, it will use
   the stale one which will try to reference the freed duplicate
   histogram and crash the kernel.

   Free the duplicate variables along with the duplicated histogram
   data.

 - Check return value of kthread_run() in event self test

   The events self tests uses a kthread for testing but does not check
   if it succeeded in creating a kthread. If the kthread creation were
   to fail, the code will still try to call kthread_stop() on the error
   returned.

 - Fix race between reading trace_pipe and updating subbuffer size

   If a user is reading the trace_pipe file at the same time they update
   the ring buffer sub-buffer size, can cause the trace_pipe read to
   read stale data. Add trace_access_lock() around updating the ring
   buffer sub-buffer size.

 - Fix eventfs_inode on failure path in creation of the events directory

   In the creation of the "events" directory, if after allocating the
   eventfs_inode a failure is detected, it calls cleanup_ei() which
   calls free_ei(). The free_ei() will test if eventfs_inode being freed
   has no children. It is a bug if it does. But on the failure case of
   the creation of the "events" directory, the children lists have not
   yet been initialized and the free will trigger a warning because
   list_empty() on an uninitialized list returns false.

   Move the initialization into init_ei() where it makes more sense and
   makes sure that a created eventfs_inode has its lists initialized
   upon creation.

 - Check return value of kthread_run() in ftrace direct sample code

   The sample code that shows how to use the ftrace direct calls does
   not test the return of kthread_run() to see if it succeeds. Return a
   failure if the kthread_run() doesn't succeed.

 - Clear user events state on fork in case of alloc failure

   On fork, the child gets a pointer to the parent's user events state.
   It makes a copy of it then updates the child's pointer to it. But if
   the allocation fails, the duplication function leaves the child with
   a pointer to its parent's descriptor. When the child cleans up its
   data, it will free the parent's descriptor while the parent is still
   using it.

   In the duplication function, set the child's user_event_mm to NULL
   before testing if the allocation succeeded, and when it exits it will
   not free the parent's descriptor.

 - Fix retry exhaustion in simple ring buffer reader swap

   simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
   post-decrements it only after a failed link replacement. On the final
   attempt, a successful replacement leaves retry at zero, while a
   failed replacement leaves it at -1.

   But the check for success expects the retry value to be non-zero and
   exits with an error on zero. This is the opposite result. Fix it.

 - Fail nicely when the remote swap_reader_page() returns an error

   Currently, if the swap_reader_page() of a remote buffer fails, it
   triggers a WARN_ON_ONCE() and continues normally. Instead, have it
   exit with an error and a pr_warn() print instead of a full WARNING.

* tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Stop remote reader update when page swap fails
  tracing: Fix retry exhaustion in simple ring buffer reader swap
  tracing/user_events: Clear copied tracing state before fork duplication
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify
  eventfs: Initialize ei->children and ei->list in init_ei()
  tracing: Fix use-after-free in trace_pipe read on sub-buffer order change
  tracing: Fix crash passing ERR_PTR to kthread_stop()
  tracing: Fix use-after-free with same-name named triggers
  tracing: Fix logged instance name on creation failure

107 files changed, 36032 insertions, 0 deletions

diff --git a/drivers/media/test-drivers/Kconfig b/drivers/media/test-drivers/Kconfig
new file mode 100644
index 000000000..5a5379524
--- /dev/null
+++ b/drivers/media/test-drivers/Kconfig
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+menuconfig V4L_TEST_DRIVERS
+	bool "V4L test drivers"
+	depends on VIDEO_DEV
+
+if V4L_TEST_DRIVERS
+
+config VIDEO_VIM2M
+	tristate "Virtual Memory-to-Memory Driver"
+	depends on VIDEO_DEV
+	select VIDEOBUF2_VMALLOC
+	select V4L2_MEM2MEM_DEV
+	select MEDIA_CONTROLLER
+	help
+	  This is a virtual test device for the memory-to-memory driver
+	  framework.
+
+source "drivers/media/test-drivers/vicodec/Kconfig"
+source "drivers/media/test-drivers/vimc/Kconfig"
+source "drivers/media/test-drivers/vivid/Kconfig"
+source "drivers/media/test-drivers/visl/Kconfig"
+
+endif #V4L_TEST_DRIVERS
+
+menuconfig DVB_TEST_DRIVERS
+	bool "DVB test drivers"
+	depends on DVB_CORE && MEDIA_SUPPORT && I2C
+	help
+	  Enables DVB test drivers.
+
+	  This enables the DVB test drivers. They are meant as an aid for
+	  DVB device driver writers and developers working on userspace
+	  media applications.
+
+if DVB_TEST_DRIVERS
+
+source "drivers/media/test-drivers/vidtv/Kconfig"
+
+endif #DVB_TEST_DRIVERS
diff --git a/drivers/media/test-drivers/Makefile b/drivers/media/test-drivers/Makefile
new file mode 100644
index 000000000..740714a45
--- /dev/null
+++ b/drivers/media/test-drivers/Makefile
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the test drivers.
+#
+
+# Please keep it alphabetically sorted by Kconfig name
+# (e. g. LC_ALL=C sort Makefile)
+
+obj-$(CONFIG_DVB_VIDTV) += vidtv/
+
+obj-$(CONFIG_VIDEO_VICODEC) += vicodec/
+obj-$(CONFIG_VIDEO_VIM2M) += vim2m.o
+obj-$(CONFIG_VIDEO_VIMC) += vimc/
+obj-$(CONFIG_VIDEO_VIVID) += vivid/
+obj-$(CONFIG_VIDEO_VISL) += visl/
diff --git a/drivers/media/test-drivers/vicodec/Kconfig b/drivers/media/test-drivers/vicodec/Kconfig
new file mode 100644
index 000000000..4ea0689c3
--- /dev/null
+++ b/drivers/media/test-drivers/vicodec/Kconfig
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_VICODEC
+	tristate "Virtual Codec Driver"
+	depends on VIDEO_DEV
+	select VIDEOBUF2_VMALLOC
+	select V4L2_MEM2MEM_DEV
+	select MEDIA_CONTROLLER
+	help
+	  Driver for a Virtual Codec
+
+	  This driver can be compared to the vim2m driver for emulating
+	  a video device node that exposes an emulated hardware codec.
+
+	  When in doubt, say N.
diff --git a/drivers/media/test-drivers/vicodec/Makefile b/drivers/media/test-drivers/vicodec/Makefile
new file mode 100644
index 000000000..01bf7e930
--- /dev/null
+++ b/drivers/media/test-drivers/vicodec/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+vicodec-objs := vicodec-core.o codec-fwht.o codec-v4l2-fwht.o
+
+obj-$(CONFIG_VIDEO_VICODEC) += vicodec.o
diff --git a/drivers/media/test-drivers/vicodec/codec-fwht.c b/drivers/media/test-drivers/vicodec/codec-fwht.c
new file mode 100644
index 000000000..fd75457d0
--- /dev/null
+++ b/drivers/media/test-drivers/vicodec/codec-fwht.c
@@ -0,0 +1,959 @@
+// SPDX-License-Identifier: LGPL-2.1+
+/*
+ * Copyright 2016 Tom aan de Wiel
+ * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ *
+ * 8x8 Fast Walsh Hadamard Transform in sequency order based on the paper:
+ *
+ * A Recursive Algorithm for Sequency-Ordered Fast Walsh Transforms,
+ * R.D. Brown, 1977
+ */
+
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/videodev2.h>
+#include "codec-fwht.h"
+
+#define OVERFLOW_BIT BIT(14)
+
+/*
+ * Note: bit 0 of the header must always be 0. Otherwise it cannot
+ * be guaranteed that the magic 8 byte sequence (see below) can
+ * never occur in the rlc output.
+ */
+#define PFRAME_BIT BIT(15)
+#define DUPS_MASK 0x1ffe
+
+#define PBLOCK 0
+#define IBLOCK 1
+
+#define ALL_ZEROS 15
+
+static const uint8_t zigzag[64] = {
+	0,
+	1,  8,
+	2,  9, 16,
+	3, 10, 17, 24,
+	4, 11, 18, 25, 32,
+	5, 12, 19, 26, 33, 40,
+	6, 13, 20, 27, 34, 41, 48,
+	7, 14, 21, 28, 35, 42, 49, 56,
+	15, 22, 29, 36, 43, 50, 57,
+	23, 30, 37, 44, 51, 58,
+	31, 38, 45, 52, 59,
+	39, 46, 53, 60,
+	47, 54, 61,
+	55, 62,
+	63,
+};
+
+/*
+ * noinline_for_stack to work around
+ * https://llvm.org/pr38809
+ */
+static int noinline_for_stack
+rlc(const s16 *in, __be16 *output, int blocktype)
+{
+	s16 block[8 * 8];
+	s16 *wp = block;
+	int i = 0;
+	int x, y;
+	int ret = 0;
+
+	/* read in block from framebuffer */
+	int lastzero_run = 0;
+	int to_encode;
+
+	for (y = 0; y < 8; y++) {
+		for (x = 0; x < 8; x++) {
+			*wp = in[x + y * 8];
+			wp++;
+		}
+	}
+
+	/* keep track of amount of trailing zeros */
+	for (i = 63; i >= 0 && !block[zigzag[i]]; i--)
+		lastzero_run++;
+
+	*output++ = (blocktype == PBLOCK ? htons(PFRAME_BIT) : 0);
+	ret++;
+
+	to_encode = 8 * 8 - (lastzero_run > 14 ? lastzero_run : 0);
+
+	i = 0;
+	while (i < to_encode) {
+		int cnt = 0;
+		int tmp;
+
+		/* count leading zeros */
+		while ((tmp = block[zigzag[i]]) == 0 && cnt < 14) {
+			cnt++;
+			i++;
+			if (i == to_encode) {
+				cnt--;
+				break;
+			}
+		}
+		/* 4 bits for run, 12 for coefficient (quantization by 4) */
+		*output++ = htons((cnt | tmp << 4));
+		i++;
+		ret++;
+	}
+	if (lastzero_run > 14) {
+		*output = htons(ALL_ZEROS | 0);
+		ret++;
+	}
+
+	return ret;
+}
+
+/*
+ * This function will worst-case increase rlc_in by 65*2 bytes:
+ * one s16 value for the header and 8 * 8 coefficients of type s16.
+ */
+static noinline_for_stack u16
+derlc(const __be16 **rlc_in, s16 *dwht_out, const __be16 *end_of_input)
+{
+	/* header */
+	const __be16 *input = *rlc_in;
+	u16 stat;
+	int dec_count = 0;
+	s16 block[8 * 8 + 16];
+	s16 *wp = block;
+	int i;
+
+	if (input > end_of_input)
+		return OVERFLOW_BIT;
+	stat = ntohs(*input++);
+
+	/*
+	 * Now de-compress, it expands one byte to up to 15 bytes
+	 * (or fills the remainder of the 64 bytes with zeroes if it
+	 * is the last byte to expand).
+	 *
+	 * So block has to be 8 * 8 + 16 bytes, the '+ 16' is to
+	 * allow for overflow if the incoming data was malformed.
+	 */
+	while (dec_count < 8 * 8) {
+		s16 in;
+		int length;
+		int coeff;
+
+		if (input > end_of_input)
+			return OVERFLOW_BIT;
+		in = ntohs(*input++);
+		length = in & 0xf;
+		coeff = in >> 4;
+
+		/* fill remainder with zeros */
+		if (length == 15) {
+			for (i = 0; i < 64 - dec_count; i++)
+				*wp++ = 0;
+			break;
+		}
+
+		for (i = 0; i < length; i++)
+			*wp++ = 0;
+		*wp++ = coeff;
+		dec_count += length + 1;
+	}
+
+	wp = block;
+
+	for (i = 0; i < 64; i++) {
+		int pos = zigzag[i];
+		int y = pos / 8;
+		int x = pos % 8;
+
+		dwht_out[x + y * 8] = *wp++;
+	}
+	*rlc_in = input;
+	return stat;
+}
+
+static const int quant_table[] = {
+	2, 2, 2, 2, 2, 2,  2,  2,
+	2, 2, 2, 2, 2, 2,  2,  2,
+	2, 2, 2, 2, 2, 2,  2,  3,
+	2, 2, 2, 2, 2, 2,  3,  6,
+	2, 2, 2, 2, 2, 3,  6,  6,
+	2, 2, 2, 2, 3, 6,  6,  6,
+	2, 2, 2, 3, 6, 6,  6,  6,
+	2, 2, 3, 6, 6, 6,  6,  8,
+};
+
+static const int quant_table_p[] = {
+	3, 3, 3, 3, 3, 3,  3,  3,
+	3, 3, 3, 3, 3, 3,  3,  3,
+	3, 3, 3, 3, 3, 3,  3,  3,
+	3, 3, 3, 3, 3, 3,  3,  6,
+	3, 3, 3, 3, 3, 3,  6,  6,
+	3, 3, 3, 3, 3, 6,  6,  9,
+	3, 3, 3, 3, 6, 6,  9,  9,
+	3, 3, 3, 6, 6, 9,  9,  10,
+};
+
+static void quantize_intra(s16 *coeff, s16 *de_coeff, u16 qp)
+{
+	const int *quant = quant_table;
+	int i, j;
+
+	for (j = 0; j < 8; j++) {
+		for (i = 0; i < 8; i++, quant++, coeff++, de_coeff++) {
+			*coeff >>= *quant;
+			if (*coeff >= -qp && *coeff <= qp)
+				*coeff = *de_coeff = 0;
+			else
+				*de_coeff = *coeff << *quant;
+		}
+	}
+}
+
+static void dequantize_intra(s16 *coeff)
+{
+	const int *quant = quant_table;
+	int i, j;
+
+	for (j = 0; j < 8; j++)
+		for (i = 0; i < 8; i++, quant++, coeff++)
+			*coeff <<= *quant;
+}
+
+static void quantize_inter(s16 *coeff, s16 *de_coeff, u16 qp)
+{
+	const int *quant = quant_table_p;
+	int i, j;
+
+	for (j = 0; j < 8; j++) {
+		for (i = 0; i < 8; i++, quant++, coeff++, de_coeff++) {
+			*coeff >>= *quant;
+			if (*coeff >= -qp && *coeff <= qp)
+				*coeff = *de_coeff = 0;
+			else
+				*de_coeff = *coeff << *quant;
+		}
+	}
+}
+
+static void dequantize_inter(s16 *coeff)
+{
+	const int *quant = quant_table_p;
+	int i, j;
+
+	for (j = 0; j < 8; j++)
+		for (i = 0; i < 8; i++, quant++, coeff++)
+			*coeff <<= *quant;
+}
+
+static void noinline_for_stack fwht(const u8 *block, s16 *output_block,
+				    unsigned int stride,
+				    unsigned int input_step, bool intra)
+{
+	/* we'll need more than 8 bits for the transformed coefficients */
+	s32 workspace1[8], workspace2[8];
+	const u8 *tmp = block;
+	s16 *out = output_block;
+	int add = intra ? 256 : 0;
+	unsigned int i;
+
+	/* stage 1 */
+	for (i = 0; i < 8; i++, tmp += stride, out += 8) {
+		switch (input_step) {
+		case 1:
+			workspace1[0]  = tmp[0] + tmp[1] - add;
+			workspace1[1]  = tmp[0] - tmp[1];
+
+			workspace1[2]  = tmp[2] + tmp[3] - add;
+			workspace1[3]  = tmp[2] - tmp[3];
+
+			workspace1[4]  = tmp[4] + tmp[5] - add;
+			workspace1[5]  = tmp[4] - tmp[5];
+
+			workspace1[6]  = tmp[6] + tmp[7] - add;
+			workspace1[7]  = tmp[6] - tmp[7];
+			break;
+		case 2:
+			workspace1[0]  = tmp[0] + tmp[2] - add;
+			workspace1[1]  = tmp[0] - tmp[2];
+
+			workspace1[2]  = tmp[4] + tmp[6] - add;
+			workspace1[3]  = tmp[4] - tmp[6];
+
+			workspace1[4]  = tmp[8] + tmp[10] - add;
+			workspace1[5]  = tmp[8] - tmp[10];
+
+			workspace1[6]  = tmp[12] + tmp[14] - add;
+			workspace1[7]  = tmp[12] - tmp[14];
+			break;
+		case 3:
+			workspace1[0]  = tmp[0] + tmp[3] - add;
+			workspace1[1]  = tmp[0] - tmp[3];
+
+			workspace1[2]  = tmp[6] + tmp[9] - add;
+			workspace1[3]  = tmp[6] - tmp[9];
+
+			workspace1[4]  = tmp[12] + tmp[15] - add;
+			workspace1[5]  = tmp[12] - tmp[15];
+
+			workspace1[6]  = tmp[18] + tmp[21] - add;
+			workspace1[7]  = tmp[18] - tmp[21];
+			break;
+		default:
+			workspace1[0]  = tmp[0] + tmp[4] - add;
+			workspace1[1]  = tmp[0] - tmp[4];
+
+			workspace1[2]  = tmp[8] + tmp[12] - add;
+			workspace1[3]  = tmp[8] - tmp[12];
+
+			workspace1[4]  = tmp[16] + tmp[20] - add;
+			workspace1[5]  = tmp[16] - tmp[20];
+
+			workspace1[6]  = tmp[24] + tmp[28] - add;
+			workspace1[7]  = tmp[24] - tmp[28];
+			break;
+		}
+
+		/* stage 2 */
+		workspace2[0] = workspace1[0] + workspace1[2];
+		workspace2[1] = workspace1[0] - workspace1[2];
+		workspace2[2] = workspace1[1] - workspace1[3];
+		workspace2[3] = workspace1[1] + workspace1[3];
+
+		workspace2[4] = workspace1[4] + workspace1[6];
+		workspace2[5] = workspace1[4] - workspace1[6];
+		workspace2[6] = workspace1[5] - workspace1[7];
+		workspace2[7] = workspace1[5] + workspace1[7];
+
+		/* stage 3 */
+		out[0] = workspace2[0] + workspace2[4];
+		out[1] = workspace2[0] - workspace2[4];
+		out[2] = workspace2[1] - workspace2[5];
+		out[3] = workspace2[1] + workspace2[5];
+		out[4] = workspace2[2] + workspace2[6];
+		out[5] = workspace2[2] - workspace2[6];
+		out[6] = workspace2[3] - workspace2[7];
+		out[7] = workspace2[3] + workspace2[7];
+	}
+
+	out = output_block;
+
+	for (i = 0; i < 8; i++, out++) {
+		/* stage 1 */
+		workspace1[0]  = out[0] + out[1 * 8];
+		workspace1[1]  = out[0] - out[1 * 8];
+
+		workspace1[2]  = out[2 * 8] + out[3 * 8];
+		workspace1[3]  = out[2 * 8] - out[3 * 8];
+
+		workspace1[4]  = out[4 * 8] + out[5 * 8];
+		workspace1[5]  = out[4 * 8] - out[5 * 8];
+
+		workspace1[6]  = out[6 * 8] + out[7 * 8];
+		workspace1[7]  = out[6 * 8] - out[7 * 8];
+
+		/* stage 2 */
+		workspace2[0] = workspace1[0] + workspace1[2];
+		workspace2[1] = workspace1[0] - workspace1[2];
+		workspace2[2] = workspace1[1] - workspace1[3];
+		workspace2[3] = workspace1[1] + workspace1[3];
+
+		workspace2[4] = workspace1[4] + workspace1[6];
+		workspace2[5] = workspace1[4] - workspace1[6];
+		workspace2[6] = workspace1[5] - workspace1[7];
+		workspace2[7] = workspace1[5] + workspace1[7];
+		/* stage 3 */
+		out[0 * 8] = workspace2[0] + workspace2[4];
+		out[1 * 8] = workspace2[0] - workspace2[4];
+		out[2 * 8] = workspace2[1] - workspace2[5];
+		out[3 * 8] = workspace2[1] + workspace2[5];
+		out[4 * 8] = workspace2[2] + workspace2[6];
+		out[5 * 8] = workspace2[2] - workspace2[6];
+		out[6 * 8] = workspace2[3] - workspace2[7];
+		out[7 * 8] = workspace2[3] + workspace2[7];
+	}
+}
+
+/*
+ * Not the nicest way of doing it, but P-blocks get twice the range of
+ * that of the I-blocks. Therefore we need a type bigger than 8 bits.
+ * Furthermore values can be negative... This is just a version that
+ * works with 16 signed data
+ */
+static void noinline_for_stack
+fwht16(const s16 *block, s16 *output_block, int stride, int intra)
+{
+	/* we'll need more than 8 bits for the transformed coefficients */
+	s32 workspace1[8], workspace2[8];
+	const s16 *tmp = block;
+	s16 *out = output_block;
+	int i;
+
+	for (i = 0; i < 8; i++, tmp += stride, out += 8) {
+		/* stage 1 */
+		workspace1[0]  = tmp[0] + tmp[1];
+		workspace1[1]  = tmp[0] - tmp[1];
+
+		workspace1[2]  = tmp[2] + tmp[3];
+		workspace1[3]  = tmp[2] - tmp[3];
+
+		workspace1[4]  = tmp[4] + tmp[5];
+		workspace1[5]  = tmp[4] - tmp[5];
+
+		workspace1[6]  = tmp[6] + tmp[7];
+		workspace1[7]  = tmp[6] - tmp[7];
+
+		/* stage 2 */
+		workspace2[0] = workspace1[0] + workspace1[2];
+		workspace2[1] = workspace1[0] - workspace1[2];
+		workspace2[2] = workspace1[1] - workspace1[3];
+		workspace2[3] = workspace1[1] + workspace1[3];
+
+		workspace2[4] = workspace1[4] + workspace1[6];
+		workspace2[5] = workspace1[4] - workspace1[6];
+		workspace2[6] = workspace1[5] - workspace1[7];
+		workspace2[7] = workspace1[5] + workspace1[7];
+
+		/* stage 3 */
+		out[0] = workspace2[0] + workspace2[4];
+		out[1] = workspace2[0] - workspace2[4];
+		out[2] = workspace2[1] - workspace2[5];
+		out[3] = workspace2[1] + workspace2[5];
+		out[4] = workspace2[2] + workspace2[6];
+		out[5] = workspace2[2] - workspace2[6];
+		out[6] = workspace2[3] - workspace2[7];
+		out[7] = workspace2[3] + workspace2[7];
+	}
+
+	out = output_block;
+
+	for (i = 0; i < 8; i++, out++) {
+		/* stage 1 */
+		workspace1[0]  = out[0] + out[1*8];
+		workspace1[1]  = out[0] - out[1*8];
+
+		workspace1[2]  = out[2*8] + out[3*8];
+		workspace1[3]  = out[2*8] - out[3*8];
+
+		workspace1[4]  = out[4*8] + out[5*8];
+		workspace1[5]  = out[4*8] - out[5*8];
+
+		workspace1[6]  = out[6*8] + out[7*8];
+		workspace1[7]  = out[6*8] - out[7*8];
+
+		/* stage 2 */
+		workspace2[0] = workspace1[0] + workspace1[2];
+		workspace2[1] = workspace1[0] - workspace1[2];
+		workspace2[2] = workspace1[1] - workspace1[3];
+		workspace2[3] = workspace1[1] + workspace1[3];
+
+		workspace2[4] = workspace1[4] + workspace1[6];
+		workspace2[5] = workspace1[4] - workspace1[6];
+		workspace2[6] = workspace1[5] - workspace1[7];
+		workspace2[7] = workspace1[5] + workspace1[7];
+
+		/* stage 3 */
+		out[0*8] = workspace2[0] + workspace2[4];
+		out[1*8] = workspace2[0] - workspace2[4];
+		out[2*8] = workspace2[1] - workspace2[5];
+		out[3*8] = workspace2[1] + workspace2[5];
+		out[4*8] = workspace2[2] + workspace2[6];
+		out[5*8] = workspace2[2] - workspace2[6];
+		out[6*8] = workspace2[3] - workspace2[7];
+		out[7*8] = workspace2[3] + workspace2[7];
+	}
+}
+
+static noinline_for_stack void
+ifwht(const s16 *block, s16 *output_block, int intra)
+{
+	/*
+	 * we'll need more than 8 bits for the transformed coefficients
+	 * use native unit of cpu
+	 */
+	int workspace1[8], workspace2[8];
+	int inter = intra ? 0 : 1;
+	const s16 *tmp = block;
+	s16 *out = output_block;
+	int i;
+
+	for (i = 0; i < 8; i++, tmp += 8, out += 8) {
+		/* stage 1 */
+		workspace1[0]  = tmp[0] + tmp[1];
+		workspace1[1]  = tmp[0] - tmp[1];
+
+		workspace1[2]  = tmp[2] + tmp[3];
+		workspace1[3]  = tmp[2] - tmp[3];
+
+		workspace1[4]  = tmp[4] + tmp[5];
+		workspace1[5]  = tmp[4] - tmp[5];
+
+		workspace1[6]  = tmp[6] + tmp[7];
+		workspace1[7]  = tmp[6] - tmp[7];
+
+		/* stage 2 */
+		workspace2[0] = workspace1[0] + workspace1[2];
+		workspace2[1] = workspace1[0] - workspace1[2];
+		workspace2[2] = workspace1[1] - workspace1[3];
+		workspace2[3] = workspace1[1] + workspace1[3];
+
+		workspace2[4] = workspace1[4] + workspace1[6];
+		workspace2[5] = workspace1[4] - workspace1[6];
+		workspace2[6] = workspace1[5] - workspace1[7];
+		workspace2[7] = workspace1[5] + workspace1[7];
+
+		/* stage 3 */
+		out[0] = workspace2[0] + workspace2[4];
+		out[1] = workspace2[0] - workspace2[4];
+		out[2] = workspace2[1] - workspace2[5];
+		out[3] = workspace2[1] + workspace2[5];
+		out[4] = workspace2[2] + workspace2[6];
+		out[5] = workspace2[2] - workspace2[6];
+		out[6] = workspace2[3] - workspace2[7];
+		out[7] = workspace2[3] + workspace2[7];
+	}
+
+	out = output_block;
+
+	for (i = 0; i < 8; i++, out++) {
+		/* stage 1 */
+		workspace1[0]  = out[0] + out[1 * 8];
+		workspace1[1]  = out[0] - out[1 * 8];
+
+		workspace1[2]  = out[2 * 8] + out[3 * 8];
+		workspace1[3]  = out[2 * 8] - out[3 * 8];
+
+		workspace1[4]  = out[4 * 8] + out[5 * 8];
+		workspace1[5]  = out[4 * 8] - out[5 * 8];
+
+		workspace1[6]  = out[6 * 8] + out[7 * 8];
+		workspace1[7]  = out[6 * 8] - out[7 * 8];
+
+		/* stage 2 */
+		workspace2[0] = workspace1[0] + workspace1[2];
+		workspace2[1] = workspace1[0] - workspace1[2];
+		workspace2[2] = workspace1[1] - workspace1[3];
+		workspace2[3] = workspace1[1] + workspace1[3];
+
+		workspace2[4] = workspace1[4] + workspace1[6];
+		workspace2[5] = workspace1[4] - workspace1[6];
+		workspace2[6] = workspace1[5] - workspace1[7];
+		workspace2[7] = workspace1[5] + workspace1[7];
+
+		/* stage 3 */
+		if (inter) {
+			int d;
+
+			out[0 * 8] = workspace2[0] + workspace2[4];
+			out[1 * 8] = workspace2[0] - workspace2[4];
+			out[2 * 8] = workspace2[1] - workspace2[5];
+			out[3 * 8] = workspace2[1] + workspace2[5];
+			out[4 * 8] = workspace2[2] + workspace2[6];
+			out[5 * 8] = workspace2[2] - workspace2[6];
+			out[6 * 8] = workspace2[3] - workspace2[7];
+			out[7 * 8] = workspace2[3] + workspace2[7];
+
+			for (d = 0; d < 8; d++)
+				out[8 * d] >>= 6;
+		} else {
+			int d;
+
+			out[0 * 8] = workspace2[0] + workspace2[4];
+			out[1 * 8] = workspace2[0] - workspace2[4];
+			out[2 * 8] = workspace2[1] - workspace2[5];
+			out[3 * 8] = workspace2[1] + workspace2[5];
+			out[4 * 8] = workspace2[2] + workspace2[6];
+			out[5 * 8] = workspace2[2] - workspace2[6];
+			out[6 * 8] = workspace2[3] - workspace2[7];
+			out[7 * 8] = workspace2[3] + workspace2[7];
+
+			for (d = 0; d < 8; d++) {
+				out[8 * d] >>= 6;
+				out[8 * d] += 128;
+			}
+		}
+	}
+}
+
+static void fill_encoder_block(const u8 *input, s16 *dst,
+			       unsigned int stride, unsigned int input_step)
+{
+	int i, j;
+
+	for (i = 0; i < 8; i++) {
+		for (j = 0; j < 8; j++, input += input_step)
+			*dst++ = *input;
+		input += stride - 8 * input_step;
+	}
+}
+
+static int var_intra(const s16 *input)
+{
+	int32_t mean = 0;
+	int32_t ret = 0;
+	const s16 *tmp = input;
+	int i;
+
+	for (i = 0; i < 8 * 8; i++, tmp++)
+		mean += *tmp;
+	mean /= 64;
+	tmp = input;
+	for (i = 0; i < 8 * 8; i++, tmp++)
+		ret += (*tmp - mean) < 0 ? -(*tmp - mean) : (*tmp - mean);
+	return ret;
+}
+
+static int var_inter(const s16 *old, const s16 *new)
+{
+	int32_t ret = 0;
+	int i;
+
+	for (i = 0; i < 8 * 8; i++, old++, new++)
+		ret += (*old - *new) < 0 ? -(*old - *new) : (*old - *new);
+	return ret;
+}
+
+static noinline_for_stack int
+decide_blocktype(const u8 *cur, const u8 *reference, s16 *deltablock,
+		 unsigned int stride, unsigned int input_step)
+{
+	s16 tmp[64];
+	s16 old[64];
+	s16 *work = tmp;
+	unsigned int k, l;
+	int vari;
+	int vard;
+
+	fill_encoder_block(cur, tmp, stride, input_step);
+	fill_encoder_block(reference, old, 8, 1);
+	vari = var_intra(tmp);
+
+	for (k = 0; k < 8; k++) {
+		for (l = 0; l < 8; l++) {
+			*deltablock = *work - *reference;
+			deltablock++;
+			work++;
+			reference++;
+		}
+	}
+	deltablock -= 64;
+	vard = var_inter(old, tmp);
+	return vari <= vard ? IBLOCK : PBLOCK;
+}
+
+static void fill_decoder_block(u8 *dst, const s16 *input, int stride,
+			       unsigned int dst_step)
+{
+	int i, j;
+
+	for (i = 0; i < 8; i++) {
+		for (j = 0; j < 8; j++, input++, dst += dst_step) {
+			if (*input < 0)
+				*dst = 0;
+			else if (*input > 255)
+				*dst = 255;
+			else
+				*dst = *input;
+		}
+		dst += stride - (8 * dst_step);
+	}
+}
+
+static void add_deltas(s16 *deltas, const u8 *ref, int stride,
+		       unsigned int ref_step)
+{
+	int k, l;
+
+	for (k = 0; k < 8; k++) {
+		for (l = 0; l < 8; l++) {
+			*deltas += *ref;
+			ref += ref_step;
+			/*
+			 * Due to quantizing, it might possible that the
+			 * decoded coefficients are slightly out of range
+			 */
+			if (*deltas < 0)
+				*deltas = 0;
+			else if (*deltas > 255)
+				*deltas = 255;
+			deltas++;
+		}
+		ref += stride - (8 * ref_step);
+	}
+}
+
+static u32 encode_plane(u8 *input, u8 *refp, __be16 **rlco, __be16 *rlco_max,
+			struct fwht_cframe *cf, u32 height, u32 width,
+			u32 stride, unsigned int input_step,
+			bool is_intra, bool next_is_intra)
+{
+	u8 *input_start = input;
+	__be16 *rlco_start = *rlco;
+	s16 deltablock[64];
+	__be16 pframe_bit = htons(PFRAME_BIT);
+	u32 encoding = 0;
+	unsigned int last_size = 0;
+	unsigned int i, j;
+
+	width = round_up(width, 8);
+	height = round_up(height, 8);
+
+	for (j = 0; j < height / 8; j++) {
+		input = input_start + j * 8 * stride;
+		for (i = 0; i < width / 8; i++) {
+			/* intra code, first frame is always intra coded. */
+			int blocktype = IBLOCK;
+			unsigned int size;
+
+			if (!is_intra)
+				blocktype = decide_blocktype(input, refp,
+					deltablock, stride, input_step);
+			if (blocktype == IBLOCK) {
+				fwht(input, cf->coeffs, stride, input_step, 1);
+				quantize_intra(cf->coeffs, cf->de_coeffs,
+					       cf->i_frame_qp);
+			} else {
+				/* inter code */
+				encoding |= FWHT_FRAME_PCODED;
+				fwht16(deltablock, cf->coeffs, 8, 0);
+				quantize_inter(cf->coeffs, cf->de_coeffs,
+					       cf->p_frame_qp);
+			}
+			if (!next_is_intra) {
+				ifwht(cf->de_coeffs, cf->de_fwht, blocktype);
+
+				if (blocktype == PBLOCK)
+					add_deltas(cf->de_fwht, refp, 8, 1);
+				fill_decoder_block(refp, cf->de_fwht, 8, 1);
+			}
+
+			input += 8 * input_step;
+			refp += 8 * 8;
+
+			size = rlc(cf->coeffs, *rlco, blocktype);
+			if (last_size == size &&
+			    !memcmp(*rlco + 1, *rlco - size + 1, 2 * size - 2)) {
+				__be16 *last_rlco = *rlco - size;
+				s16 hdr = ntohs(*last_rlco);
+
+				if (!((*last_rlco ^ **rlco) & pframe_bit) &&
+				    (hdr & DUPS_MASK) < DUPS_MASK)
+					*last_rlco = htons(hdr + 2);
+				else
+					*rlco += size;
+			} else {
+				*rlco += size;
+			}
+			if (*rlco >= rlco_max) {
+				encoding |= FWHT_FRAME_UNENCODED;
+				goto exit_loop;
+			}
+			last_size = size;
+		}
+	}
+
+exit_loop:
+	if (encoding & FWHT_FRAME_UNENCODED) {
+		u8 *out = (u8 *)rlco_start;
+		u8 *p;
+
+		input = input_start;
+		/*
+		 * The compressed stream should never contain the magic
+		 * header, so when we copy the YUV data we replace 0xff
+		 * by 0xfe. Since YUV is limited range such values
+		 * shouldn't appear anyway.
+		 */
+		for (j = 0; j < height; j++) {
+			for (i = 0, p = input; i < width; i++, p += input_step)
+				*out++ = (*p == 0xff) ? 0xfe : *p;
+			input += stride;
+		}
+		*rlco = (__be16 *)out;
+		encoding &= ~FWHT_FRAME_PCODED;
+	}
+	return encoding;
+}
+
+u32 fwht_encode_frame(struct fwht_raw_frame *frm,
+		      struct fwht_raw_frame *ref_frm,
+		      struct fwht_cframe *cf,
+		      bool is_intra, bool next_is_intra,
+		      unsigned int width, unsigned int height,
+		      unsigned int stride, unsigned int chroma_stride)
+{
+	unsigned int size = height * width;
+	__be16 *rlco = cf->rlc_data;
+	__be16 *rlco_max;
+	u32 encoding;
+
+	rlco_max = rlco + size / 2 - 256;
+	encoding = encode_plane(frm->luma, ref_frm->luma, &rlco, rlco_max, cf,
+				height, width, stride,
+				frm->luma_alpha_step, is_intra, next_is_intra);
+	if (encoding & FWHT_FRAME_UNENCODED)
+		encoding |= FWHT_LUMA_UNENCODED;
+	encoding &= ~FWHT_FRAME_UNENCODED;
+
+	if (frm->components_num >= 3) {
+		u32 chroma_h = height / frm->height_div;
+		u32 chroma_w = width / frm->width_div;
+		unsigned int chroma_size = chroma_h * chroma_w;
+
+		rlco_max = rlco + chroma_size / 2 - 256;
+		encoding |= encode_plane(frm->cb, ref_frm->cb, &rlco, rlco_max,
+					 cf, chroma_h, chroma_w,
+					 chroma_stride, frm->chroma_step,
+					 is_intra, next_is_intra);
+		if (encoding & FWHT_FRAME_UNENCODED)
+			encoding |= FWHT_CB_UNENCODED;
+		encoding &= ~FWHT_FRAME_UNENCODED;
+		rlco_max = rlco + chroma_size / 2 - 256;
+		encoding |= encode_plane(frm->cr, ref_frm->cr, &rlco, rlco_max,
+					 cf, chroma_h, chroma_w,
+					 chroma_stride, frm->chroma_step,
+					 is_intra, next_is_intra);
+		if (encoding & FWHT_FRAME_UNENCODED)
+			encoding |= FWHT_CR_UNENCODED;
+		encoding &= ~FWHT_FRAME_UNENCODED;
+	}
+
+	if (frm->components_num == 4) {
+		rlco_max = rlco + size / 2 - 256;
+		encoding |= encode_plane(frm->alpha, ref_frm->alpha, &rlco,
+					 rlco_max, cf, height, width,
+					 stride, frm->luma_alpha_step,
+					 is_intra, next_is_intra);
+		if (encoding & FWHT_FRAME_UNENCODED)
+			encoding |= FWHT_ALPHA_UNENCODED;
+		encoding &= ~FWHT_FRAME_UNENCODED;
+	}
+
+	cf->size = (rlco - cf->rlc_data) * sizeof(*rlco);
+	return encoding;
+}
+
+static bool decode_plane(struct fwht_cframe *cf, const __be16 **rlco,
+			 u32 height, u32 width, const u8 *ref, u32 ref_stride,
+			 unsigned int ref_step, u8 *dst,
+			 unsigned int dst_stride, unsigned int dst_step,
+			 bool uncompressed, const __be16 *end_of_rlco_buf)
+{
+	unsigned int copies = 0;
+	s16 copy[8 * 8];
+	u16 stat;
+	unsigned int i, j;
+	bool is_intra = !ref;
+
+	width = round_up(width, 8);
+	height = round_up(height, 8);
+
+	if (uncompressed) {
+		int i;
+
+		if (end_of_rlco_buf + 1 < *rlco + width * height / 2)
+			return false;
+		for (i = 0; i < height; i++) {
+			memcpy(dst, *rlco, width);
+			dst += dst_stride;
+			*rlco += width / 2;
+		}
+		return true;
+	}
+
+	/*
+	 * When decoding each macroblock the rlco pointer will be increased
+	 * by 65 * 2 bytes worst-case.
+	 * To avoid overflow the buffer has to be 65/64th of the actual raw
+	 * image size, just in case someone feeds it malicious data.
+	 */
+	for (j = 0; j < height / 8; j++) {
+		for (i = 0; i < width / 8; i++) {
+			const u8 *refp = ref + j * 8 * ref_stride +
+				i * 8 * ref_step;
+			u8 *dstp = dst + j * 8 * dst_stride + i * 8 * dst_step;
+
+			if (copies) {
+				memcpy(cf->de_fwht, copy, sizeof(copy));
+				if ((stat & PFRAME_BIT) && !is_intra)
+					add_deltas(cf->de_fwht, refp,
+						   ref_stride, ref_step);
+				fill_decoder_block(dstp, cf->de_fwht,
+						   dst_stride, dst_step);
+				copies--;
+				continue;
+			}
+
+			stat = derlc(rlco, cf->coeffs, end_of_rlco_buf);
+			if (stat & OVERFLOW_BIT)
+				return false;
+			if ((stat & PFRAME_BIT) && !is_intra)
+				dequantize_inter(cf->coeffs);
+			else
+				dequantize_intra(cf->coeffs);
+
+			ifwht(cf->coeffs, cf->de_fwht,
+			      ((stat & PFRAME_BIT) && !is_intra) ? 0 : 1);
+
+			copies = (stat & DUPS_MASK) >> 1;
+			if (copies)
+				memcpy(copy, cf->de_fwht, sizeof(copy));
+			if ((stat & PFRAME_BIT) && !is_intra)
+				add_deltas(cf->de_fwht, refp,
+					   ref_stride, ref_step);
+			fill_decoder_block(dstp, cf->de_fwht, dst_stride,
+					   dst_step);
+		}
+	}
+	return true;
+}
+
+bool fwht_decode_frame(struct fwht_cframe *cf, u32 hdr_flags,
+		       unsigned int components_num, unsigned int width,
+		       unsigned int height, const struct fwht_raw_frame *ref,
+		       unsigned int ref_stride, unsigned int ref_chroma_stride,
+		       struct fwht_raw_frame *dst, unsigned int dst_stride,
+		       unsigned int dst_chroma_stride)
+{
+	const __be16 *rlco = cf->rlc_data;
+	const __be16 *end_of_rlco_buf = cf->rlc_data +
+			(cf->size / sizeof(*rlco)) - 1;
+
+	if (!decode_plane(cf, &rlco, height, width, ref->luma, ref_stride,
+			  ref->luma_alpha_step, dst->luma, dst_stride,
+			  dst->luma_alpha_step,
+			  hdr_flags & V4L2_FWHT_FL_LUMA_IS_UNCOMPRESSED,
+			  end_of_rlco_buf))
+		return false;
+
+	if (components_num >= 3) {
+		u32 h = height;
+		u32 w = width;
+
+		if (!(hdr_flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT))
+			h /= 2;
+		if (!(hdr_flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH))
+			w /= 2;
+
+		if (!decode_plane(cf, &rlco, h, w, ref->cb, ref_chroma_stride,
+				  ref->chroma_step, dst->cb, dst_chroma_stride,
+				  dst->chroma_step,
+				  hdr_flags & V4L2_FWHT_FL_CB_IS_UNCOMPRESSED,
+				  end_of_rlco_buf))
+			return false;
+		if (!decode_plane(cf, &rlco, h, w, ref->cr, ref_chroma_stride,
+				  ref->chroma_step, dst->cr, dst_chroma_stride,
+				  dst->chroma_step,
+				  hdr_flags & V4L2_FWHT_FL_CR_IS_UNCOMPRESSED,
+				  end_of_rlco_buf))
+			return false;
+	}
+
+	if (components_num == 4)
+		if (!decode_plane(cf, &rlco, height, width, ref->alpha, ref_stride,
+				  ref->luma_alpha_step, dst->alpha, dst_stride,
+				  dst->luma_alpha_step,
+				  hdr_flags & V4L2_FWHT_FL_ALPHA_IS_UNCOMPRESSED,
+				  end_of_rlco_buf))
+			return false;
+	return true;
+}
diff --git a/drivers/media/test-drivers/vicodec/codec-fwht.h b/drivers/media/test-drivers/vicodec/codec-fwht.h
new file mode 100644
index 000000000..0eab24020
--- /dev/null
+++ b/drivers/media/test-drivers/vicodec/codec-fwht.h
@@ -0,0 +1,118 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+/*
+ * Copyright 2016 Tom aan de Wiel
+ * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef CODEC_FWHT_H
+#define CODEC_FWHT_H
+
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <asm/byteorder.h>
+
+/*
+ * The compressed format consists of a fwht_cframe_hdr struct followed by the
+ * compressed frame data. The header contains the size of that data.
+ * Each Y, Cb and Cr plane is compressed separately. If the compressed
+ * size of each plane becomes larger than the uncompressed size, then
+ * that plane is stored uncompressed and the corresponding bit is set
+ * in the flags field of the header.
+ *
+ * Each compressed plane consists of macroblocks and each macroblock
+ * is run-length-encoded. Each macroblock starts with a 16 bit value.
+ * Bit 15 indicates if this is a P-coded macroblock (1) or not (0).
+ * P-coded macroblocks contain a delta against the previous frame.
+ *
+ * Bits 1-12 contain a number. If non-zero, then this same macroblock
+ * repeats that number of times. This results in a high degree of
+ * compression for generated images like colorbars.
+ *
+ * Following this macroblock header the MB coefficients are run-length
+ * encoded: the top 12 bits contain the coefficient, the bottom 4 bits
+ * tell how many times this coefficient occurs. The value 0xf indicates
+ * that the remainder of the macroblock should be filled with zeroes.
+ *
+ * All 16 and 32 bit values are stored in big-endian (network) order.
+ *
+ * Each fwht_cframe_hdr starts with an 8 byte magic header that is
+ * guaranteed not to occur in the compressed frame data. This header
+ * can be used to sync to the next frame.
+ *
+ * This codec uses the Fast Walsh Hadamard Transform. Tom aan de Wiel
+ * developed this as part of a university project, specifically for use
+ * with this driver. His project report can be found here:
+ *
+ * https://hverkuil.home.xs4all.nl/fwht.pdf
+ */
+
+/*
+ * This is a sequence of 8 bytes with the low 4 bits set to 0xf.
+ *
+ * This sequence cannot occur in the encoded data
+ *
+ * Note that these two magic values are symmetrical so endian issues here.
+ */
+#define FWHT_MAGIC1 0x4f4f4f4f
+#define FWHT_MAGIC2 0xffffffff
+
+/*
+ * A macro to calculate the needed padding in order to make sure
+ * both luma and chroma components resolutions are rounded up to
+ * a multiple of 8
+ */
+#define vic_round_dim(dim, div) (round_up((dim) / (div), 8) * (div))
+
+struct fwht_cframe_hdr {
+	u32 magic1;
+	u32 magic2;
+	__be32 version;
+	__be32 width, height;
+	__be32 flags;
+	__be32 colorspace;
+	__be32 xfer_func;
+	__be32 ycbcr_enc;
+	__be32 quantization;
+	__be32 size;
+};
+
+struct fwht_cframe {
+	u16 i_frame_qp;
+	u16 p_frame_qp;
+	__be16 *rlc_data;
+	s16 coeffs[8 * 8];
+	s16 de_coeffs[8 * 8];
+	s16 de_fwht[8 * 8];
+	u32 size;
+};
+
+struct fwht_raw_frame {
+	unsigned int width_div;
+	unsigned int height_div;
+	unsigned int luma_alpha_step;
+	unsigned int chroma_step;
+	unsigned int components_num;
+	u8 *buf;
+	u8 *luma, *cb, *cr, *alpha;
+};
+
+#define FWHT_FRAME_PCODED	BIT(0)
+#define FWHT_FRAME_UNENCODED	BIT(1)
+#define FWHT_LUMA_UNENCODED	BIT(2)
+#define FWHT_CB_UNENCODED	BIT(3)
+#define FWHT_CR_UNENCODED	BIT(4)
+#define FWHT_ALPHA_UNENCODED	BIT(5)
+
+u32 fwht_encode_frame(struct fwht_raw_frame *frm,
+		      struct fwht_raw_frame *ref_frm,
+		      struct fwht_cframe *cf,
+		      bool is_intra, bool next_is_intra,
+		      unsigned int width, unsigned int height,
+		      unsigned int stride, unsigned int chroma_stride);
+bool fwht_decode_frame(struct fwht_cframe *cf, u32 hdr_flags,
+		unsigned int components_num, unsigned int width,
+		unsigned int height, const struct fwht_raw_frame *ref,
+		unsigned int ref_stride, unsigned int ref_chroma_stride,
+		struct fwht_raw_frame *dst, unsigned int dst_stride,
+		unsigned int dst_chroma_stride);
+#endif
diff --git a/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.c b/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.c
new file mode 100644
index 000000000..0c83678fc
--- /dev/null
+++ b/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.c
@@ -0,0 +1,367 @@
+// SPDX-License-Identifier: LGPL-2.1
+/*
+ * A V4L2 frontend for the FWHT codec
+ *
+ * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/videodev2.h>
+#include "codec-v4l2-fwht.h"
+
+static const struct v4l2_fwht_pixfmt_info v4l2_fwht_pixfmts[] = {
+	{ V4L2_PIX_FMT_YUV420,  1, 3, 2, 1, 1, 2, 2, 3, 3, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_YVU420,  1, 3, 2, 1, 1, 2, 2, 3, 3, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_YUV422P, 1, 2, 1, 1, 1, 2, 1, 3, 3, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_NV12,    1, 3, 2, 1, 2, 2, 2, 3, 2, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_NV21,    1, 3, 2, 1, 2, 2, 2, 3, 2, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_NV16,    1, 2, 1, 1, 2, 2, 1, 3, 2, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_NV61,    1, 2, 1, 1, 2, 2, 1, 3, 2, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_NV24,    1, 3, 1, 1, 2, 1, 1, 3, 2, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_NV42,    1, 3, 1, 1, 2, 1, 1, 3, 2, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_YUYV,    2, 2, 1, 2, 4, 2, 1, 3, 1, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_YVYU,    2, 2, 1, 2, 4, 2, 1, 3, 1, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_UYVY,    2, 2, 1, 2, 4, 2, 1, 3, 1, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_VYUY,    2, 2, 1, 2, 4, 2, 1, 3, 1, V4L2_FWHT_FL_PIXENC_YUV},
+	{ V4L2_PIX_FMT_BGR24,   3, 3, 1, 3, 3, 1, 1, 3, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_RGB24,   3, 3, 1, 3, 3, 1, 1, 3, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_HSV24,   3, 3, 1, 3, 3, 1, 1, 3, 1, V4L2_FWHT_FL_PIXENC_HSV},
+	{ V4L2_PIX_FMT_BGR32,   4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_XBGR32,  4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_ABGR32,  4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_RGB32,   4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_XRGB32,  4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_ARGB32,  4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_BGRX32,  4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_BGRA32,  4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_RGBX32,  4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_RGBA32,  4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB},
+	{ V4L2_PIX_FMT_HSV32,   4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_HSV},
+	{ V4L2_PIX_FMT_GREY,    1, 1, 1, 1, 0, 1, 1, 1, 1, V4L2_FWHT_FL_PIXENC_RGB},
+};
+
+bool v4l2_fwht_validate_fmt(const struct v4l2_fwht_pixfmt_info *info,
+			    u32 width_div, u32 height_div, u32 components_num,
+			    u32 pixenc)
+{
+	if (info->width_div == width_div &&
+	    info->height_div == height_div &&
+	    (!pixenc || info->pixenc == pixenc) &&
+	    info->components_num == components_num)
+		return true;
+	return false;
+}
+
+const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_nth_fmt(u32 width_div,
+							  u32 height_div,
+							  u32 components_num,
+							  u32 pixenc,
+							  unsigned int start_idx)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(v4l2_fwht_pixfmts); i++) {
+		bool is_valid = v4l2_fwht_validate_fmt(&v4l2_fwht_pixfmts[i],
+						       width_div, height_div,
+						       components_num, pixenc);
+		if (is_valid) {
+			if (start_idx == 0)
+				return v4l2_fwht_pixfmts + i;
+			start_idx--;
+		}
+	}
+	return NULL;
+}
+
+const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_pixfmt(u32 pixelformat)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(v4l2_fwht_pixfmts); i++)
+		if (v4l2_fwht_pixfmts[i].id == pixelformat)
+			return v4l2_fwht_pixfmts + i;
+	return NULL;
+}
+
+const struct v4l2_fwht_pixfmt_info *v4l2_fwht_get_pixfmt(u32 idx)
+{
+	if (idx >= ARRAY_SIZE(v4l2_fwht_pixfmts))
+		return NULL;
+	return v4l2_fwht_pixfmts + idx;
+}
+
+static int prepare_raw_frame(struct fwht_raw_frame *rf,
+			 const struct v4l2_fwht_pixfmt_info *info, u8 *buf,
+			 unsigned int size)
+{
+	rf->luma = buf;
+	rf->width_div = info->width_div;
+	rf->height_div = info->height_div;
+	rf->luma_alpha_step = info->luma_alpha_step;
+	rf->chroma_step = info->chroma_step;
+	rf->alpha = NULL;
+	rf->components_num = info->components_num;
+
+	/*
+	 * The buffer is NULL if it is the reference
+	 * frame of an I-frame in the stateless decoder
+	 */
+	if (!buf) {
+		rf->luma = NULL;
+		rf->cb = NULL;
+		rf->cr = NULL;
+		rf->alpha = NULL;
+		return 0;
+	}
+	switch (info->id) {
+	case V4L2_PIX_FMT_GREY:
+		rf->cb = NULL;
+		rf->cr = NULL;
+		break;
+	case V4L2_PIX_FMT_YUV420:
+		rf->cb = rf->luma + size;
+		rf->cr = rf->cb + size / 4;
+		break;
+	case V4L2_PIX_FMT_YVU420:
+		rf->cr = rf->luma + size;
+		rf->cb = rf->cr + size / 4;
+		break;
+	case V4L2_PIX_FMT_YUV422P:
+		rf->cb = rf->luma + size;
+		rf->cr = rf->cb + size / 2;
+		break;
+	case V4L2_PIX_FMT_NV12:
+	case V4L2_PIX_FMT_NV16:
+	case V4L2_PIX_FMT_NV24:
+		rf->cb = rf->luma + size;
+		rf->cr = rf->cb + 1;
+		break;
+	case V4L2_PIX_FMT_NV21:
+	case V4L2_PIX_FMT_NV61:
+	case V4L2_PIX_FMT_NV42:
+		rf->cr = rf->luma + size;
+		rf->cb = rf->cr + 1;
+		break;
+	case V4L2_PIX_FMT_YUYV:
+		rf->cb = rf->luma + 1;
+		rf->cr = rf->cb + 2;
+		break;
+	case V4L2_PIX_FMT_YVYU:
+		rf->cr = rf->luma + 1;
+		rf->cb = rf->cr + 2;
+		break;
+	case V4L2_PIX_FMT_UYVY:
+		rf->cb = rf->luma;
+		rf->cr = rf->cb + 2;
+		rf->luma++;
+		break;
+	case V4L2_PIX_FMT_VYUY:
+		rf->cr = rf->luma;
+		rf->cb = rf->cr + 2;
+		rf->luma++;
+		break;
+	case V4L2_PIX_FMT_RGB24:
+	case V4L2_PIX_FMT_HSV24:
+		rf->cr = rf->luma;
+		rf->cb = rf->cr + 2;
+		rf->luma++;
+		break;
+	case V4L2_PIX_FMT_BGR24:
+		rf->cb = rf->luma;
+		rf->cr = rf->cb + 2;
+		rf->luma++;
+		break;
+	case V4L2_PIX_FMT_RGB32:
+	case V4L2_PIX_FMT_XRGB32:
+	case V4L2_PIX_FMT_HSV32:
+	case V4L2_PIX_FMT_ARGB32:
+		rf->alpha = rf->luma;
+		rf->cr = rf->luma + 1;
+		rf->cb = rf->cr + 2;
+		rf->luma += 2;
+		break;
+	case V4L2_PIX_FMT_BGR32:
+	case V4L2_PIX_FMT_XBGR32:
+	case V4L2_PIX_FMT_ABGR32:
+		rf->cb = rf->luma;
+		rf->cr = rf->cb + 2;
+		rf->luma++;
+		rf->alpha = rf->cr + 1;
+		break;
+	case V4L2_PIX_FMT_BGRX32:
+	case V4L2_PIX_FMT_BGRA32:
+		rf->alpha = rf->luma;
+		rf->cb = rf->luma + 1;
+		rf->cr = rf->cb + 2;
+		rf->luma += 2;
+		break;
+	case V4L2_PIX_FMT_RGBX32:
+	case V4L2_PIX_FMT_RGBA32:
+		rf->alpha = rf->luma + 3;
+		rf->cr = rf->luma;
+		rf->cb = rf->cr + 2;
+		rf->luma++;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out)
+{
+	unsigned int size = state->stride * state->coded_height;
+	unsigned int chroma_stride = state->stride;
+	const struct v4l2_fwht_pixfmt_info *info = state->info;
+	struct fwht_cframe_hdr *p_hdr;
+	struct fwht_cframe cf;
+	struct fwht_raw_frame rf;
+	u32 encoding;
+	u32 flags = 0;
+
+	if (!info)
+		return -EINVAL;
+
+	if (prepare_raw_frame(&rf, info, p_in, size))
+		return -EINVAL;
+
+	if (info->planes_num == 3)
+		chroma_stride /= 2;
+
+	if (info->id == V4L2_PIX_FMT_NV24 ||
+	    info->id == V4L2_PIX_FMT_NV42)
+		chroma_stride *= 2;
+
+	cf.i_frame_qp = state->i_frame_qp;
+	cf.p_frame_qp = state->p_frame_qp;
+	cf.rlc_data = (__be16 *)(p_out + sizeof(*p_hdr));
+
+	encoding = fwht_encode_frame(&rf, &state->ref_frame, &cf,
+				     !state->gop_cnt,
+				     state->gop_cnt == state->gop_size - 1,
+				     state->visible_width,
+				     state->visible_height,
+				     state->stride, chroma_stride);
+	if (!(encoding & FWHT_FRAME_PCODED))
+		state->gop_cnt = 0;
+	if (++state->gop_cnt >= state->gop_size)
+		state->gop_cnt = 0;
+
+	p_hdr = (struct fwht_cframe_hdr *)p_out;
+	p_hdr->magic1 = FWHT_MAGIC1;
+	p_hdr->magic2 = FWHT_MAGIC2;
+	p_hdr->version = htonl(V4L2_FWHT_VERSION);
+	p_hdr->width = htonl(state->visible_width);
+	p_hdr->height = htonl(state->visible_height);
+	flags |= (info->components_num - 1) << V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET;
+	flags |= info->pixenc;
+	if (encoding & FWHT_LUMA_UNENCODED)
+		flags |= V4L2_FWHT_FL_LUMA_IS_UNCOMPRESSED;
+	if (encoding & FWHT_CB_UNENCODED)
+		flags |= V4L2_FWHT_FL_CB_IS_UNCOMPRESSED;
+	if (encoding & FWHT_CR_UNENCODED)
+		flags |= V4L2_FWHT_FL_CR_IS_UNCOMPRESSED;
+	if (encoding & FWHT_ALPHA_UNENCODED)
+		flags |= V4L2_FWHT_FL_ALPHA_IS_UNCOMPRESSED;
+	if (!(encoding & FWHT_FRAME_PCODED))
+		flags |= V4L2_FWHT_FL_I_FRAME;
+	if (rf.height_div == 1)
+		flags |= V4L2_FWHT_FL_CHROMA_FULL_HEIGHT;
+	if (rf.width_div == 1)
+		flags |= V4L2_FWHT_FL_CHROMA_FULL_WIDTH;
+	p_hdr->flags = htonl(flags);
+	p_hdr->colorspace = htonl(state->colorspace);
+	p_hdr->xfer_func = htonl(state->xfer_func);
+	p_hdr->ycbcr_enc = htonl(state->ycbcr_enc);
+	p_hdr->quantization = htonl(state->quantization);
+	p_hdr->size = htonl(cf.size);
+	return cf.size + sizeof(*p_hdr);
+}
+
+int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out)
+{
+	u32 flags;
+	struct fwht_cframe cf;
+	unsigned int components_num = 3;
+	unsigned int version;
+	const struct v4l2_fwht_pixfmt_info *info;
+	unsigned int hdr_width_div, hdr_height_div;
+	struct fwht_raw_frame dst_rf;
+	unsigned int dst_chroma_stride = state->stride;
+	unsigned int ref_chroma_stride = state->ref_stride;
+	unsigned int dst_size = state->stride * state->coded_height;
+	unsigned int ref_size;
+
+	if (!state->info)
+		return -EINVAL;
+
+	info = state->info;
+
+	version = ntohl(state->header.version);
+	if (!version || version > V4L2_FWHT_VERSION) {
+		pr_err("version %d is not supported, current version is %d\n",
+		       version, V4L2_FWHT_VERSION);
+		return -EINVAL;
+	}
+
+	if (state->header.magic1 != FWHT_MAGIC1 ||
+	    state->header.magic2 != FWHT_MAGIC2)
+		return -EINVAL;
+
+	/* TODO: support resolution changes */
+	if (ntohl(state->header.width)  != state->visible_width ||
+	    ntohl(state->header.height) != state->visible_height)
+		return -EINVAL;
+
+	flags = ntohl(state->header.flags);
+
+	if (version >= 2) {
+		if ((flags & V4L2_FWHT_FL_PIXENC_MSK) != info->pixenc)
+			return -EINVAL;
+		components_num = 1 + ((flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >>
+				V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET);
+	}
+
+	if (components_num != info->components_num)
+		return -EINVAL;
+
+	state->colorspace = ntohl(state->header.colorspace);
+	state->xfer_func = ntohl(state->header.xfer_func);
+	state->ycbcr_enc = ntohl(state->header.ycbcr_enc);
+	state->quantization = ntohl(state->header.quantization);
+	cf.rlc_data = (__be16 *)p_in;
+	cf.size = ntohl(state->header.size);
+
+	hdr_width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2;
+	hdr_height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2;
+	if (hdr_width_div != info->width_div ||
+	    hdr_height_div != info->height_div)
+		return -EINVAL;
+
+	if (prepare_raw_frame(&dst_rf, info, p_out, dst_size))
+		return -EINVAL;
+	if (info->planes_num == 3) {
+		dst_chroma_stride /= 2;
+		ref_chroma_stride /= 2;
+	}
+	if (info->id == V4L2_PIX_FMT_NV24 ||
+	    info->id == V4L2_PIX_FMT_NV42) {
+		dst_chroma_stride *= 2;
+		ref_chroma_stride *= 2;
+	}
+
+
+	ref_size = state->ref_stride * state->coded_height;
+
+	if (prepare_raw_frame(&state->ref_frame, info, state->ref_frame.buf,
+			      ref_size))
+		return -EINVAL;
+
+	if (!fwht_decode_frame(&cf, flags, components_num,
+			state->visible_width, state->visible_height,
+			&state->ref_frame, state->ref_stride, ref_chroma_stride,
+			&dst_rf, state->stride, dst_chroma_stride))
+		return -EINVAL;
+	return 0;
+}
diff --git a/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.h b/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.h
new file mode 100644
index 000000000..1a0d2a9f9
--- /dev/null
+++ b/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: LGPL-2.1 */
+/*
+ * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef CODEC_V4L2_FWHT_H
+#define CODEC_V4L2_FWHT_H
+
+#include "codec-fwht.h"
+
+struct v4l2_fwht_pixfmt_info {
+	u32 id;
+	unsigned int bytesperline_mult;
+	unsigned int sizeimage_mult;
+	unsigned int sizeimage_div;
+	unsigned int luma_alpha_step;
+	unsigned int chroma_step;
+	/* Chroma plane subsampling */
+	unsigned int width_div;
+	unsigned int height_div;
+	unsigned int components_num;
+	unsigned int planes_num;
+	unsigned int pixenc;
+};
+
+struct v4l2_fwht_state {
+	const struct v4l2_fwht_pixfmt_info *info;
+	unsigned int visible_width;
+	unsigned int visible_height;
+	unsigned int coded_width;
+	unsigned int coded_height;
+	unsigned int stride;
+	unsigned int ref_stride;
+	unsigned int gop_size;
+	unsigned int gop_cnt;
+	u16 i_frame_qp;
+	u16 p_frame_qp;
+
+	enum v4l2_colorspace colorspace;
+	enum v4l2_ycbcr_encoding ycbcr_enc;
+	enum v4l2_xfer_func xfer_func;
+	enum v4l2_quantization quantization;
+
+	struct fwht_raw_frame ref_frame;
+	struct fwht_cframe_hdr header;
+	u8 *compressed_frame;
+	u64 ref_frame_ts;
+};
+
+const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_pixfmt(u32 pixelformat);
+const struct v4l2_fwht_pixfmt_info *v4l2_fwht_get_pixfmt(u32 idx);
+bool v4l2_fwht_validate_fmt(const struct v4l2_fwht_pixfmt_info *info,
+			    u32 width_div, u32 height_div, u32 components_num,
+			    u32 pixenc);
+const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_nth_fmt(u32 width_div,
+							  u32 height_div,
+							  u32 components_num,
+							  u32 pixenc,
+							  unsigned int start_idx);
+
+int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out);
+int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out);
+
+#endif
diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c
new file mode 100644
index 000000000..ff9d50fb0
--- /dev/null
+++ b/drivers/media/test-drivers/vicodec/vicodec-core.c
@@ -0,0 +1,2252 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * A virtual codec example device.
+ *
+ * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ *
+ * This is a virtual codec device driver for testing the codec framework.
+ * It simulates a device that uses memory buffers for both source and
+ * destination and encodes or decodes the data.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include <linux/platform_device.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/videobuf2-vmalloc.h>
+
+#include "codec-v4l2-fwht.h"
+
+MODULE_DESCRIPTION("Virtual codec device");
+MODULE_AUTHOR("Hans Verkuil <hverkuil@kernel.org>");
+MODULE_LICENSE("GPL v2");
+
+static bool multiplanar;
+module_param(multiplanar, bool, 0444);
+MODULE_PARM_DESC(multiplanar,
+		 " use multi-planar API instead of single-planar API");
+
+static unsigned int debug;
+module_param(debug, uint, 0644);
+MODULE_PARM_DESC(debug, " activates debug info");
+
+#define VICODEC_NAME		"vicodec"
+#define MAX_WIDTH		4096U
+#define MIN_WIDTH		640U
+#define MAX_HEIGHT		2160U
+#define MIN_HEIGHT		360U
+/* Recommended number of buffers for the stateful codecs */
+#define VICODEC_REC_BUFS	2
+
+#define dprintk(dev, fmt, arg...) \
+	v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg)
+
+
+struct pixfmt_info {
+	u32 id;
+	unsigned int bytesperline_mult;
+	unsigned int sizeimage_mult;
+	unsigned int sizeimage_div;
+	unsigned int luma_step;
+	unsigned int chroma_step;
+	/* Chroma plane subsampling */
+	unsigned int width_div;
+	unsigned int height_div;
+};
+
+static const struct v4l2_fwht_pixfmt_info pixfmt_fwht = {
+	V4L2_PIX_FMT_FWHT, 0, 4, 1, 1, 1, 1, 1, 0, 1
+};
+
+static const struct v4l2_fwht_pixfmt_info pixfmt_stateless_fwht = {
+	V4L2_PIX_FMT_FWHT_STATELESS, 0, 4, 1, 1, 1, 1, 1, 0, 1
+};
+
+static void vicodec_dev_release(struct device *dev)
+{
+}
+
+static struct platform_device vicodec_pdev = {
+	.name		= VICODEC_NAME,
+	.dev.release	= vicodec_dev_release,
+};
+
+/* Per-queue, driver-specific private data */
+struct vicodec_q_data {
+	unsigned int		coded_width;
+	unsigned int		coded_height;
+	unsigned int		visible_width;
+	unsigned int		visible_height;
+	unsigned int		sizeimage;
+	unsigned int		vb2_sizeimage;
+	unsigned int		sequence;
+	const struct v4l2_fwht_pixfmt_info *info;
+};
+
+enum {
+	V4L2_M2M_SRC = 0,
+	V4L2_M2M_DST = 1,
+};
+
+struct vicodec_dev_instance {
+	struct video_device     vfd;
+	struct mutex            mutex;
+	spinlock_t              lock;
+	struct v4l2_m2m_dev     *m2m_dev;
+};
+
+struct vicodec_dev {
+	struct v4l2_device	v4l2_dev;
+	struct vicodec_dev_instance stateful_enc;
+	struct vicodec_dev_instance stateful_dec;
+	struct vicodec_dev_instance stateless_dec;
+#ifdef CONFIG_MEDIA_CONTROLLER
+	struct media_device	mdev;
+#endif
+
+};
+
+struct vicodec_ctx {
+	struct v4l2_fh		fh;
+	struct vicodec_dev	*dev;
+	bool			is_enc;
+	bool			is_stateless;
+	spinlock_t		*lock;
+
+	struct v4l2_ctrl_handler hdl;
+
+	/* Source and destination queue data */
+	struct vicodec_q_data   q_data[2];
+	struct v4l2_fwht_state	state;
+
+	u32			cur_buf_offset;
+	u32			comp_max_size;
+	u32			comp_size;
+	u32			header_size;
+	u32			comp_magic_cnt;
+	bool			comp_has_frame;
+	bool			comp_has_next_frame;
+	bool			first_source_change_sent;
+	bool			source_changed;
+};
+
+static const struct v4l2_event vicodec_eos_event = {
+	.type = V4L2_EVENT_EOS
+};
+
+static inline struct vicodec_ctx *file2ctx(struct file *file)
+{
+	return container_of(file_to_v4l2_fh(file), struct vicodec_ctx, fh);
+}
+
+static struct vicodec_q_data *get_q_data(struct vicodec_ctx *ctx,
+					 enum v4l2_buf_type type)
+{
+	switch (type) {
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		return &ctx->q_data[V4L2_M2M_SRC];
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+		return &ctx->q_data[V4L2_M2M_DST];
+	default:
+		break;
+	}
+	return NULL;
+}
+
+static void copy_cap_to_ref(const u8 *cap, const struct v4l2_fwht_pixfmt_info *info,
+		struct v4l2_fwht_state *state)
+{
+	int plane_idx;
+	u8 *p_ref = state->ref_frame.buf;
+	unsigned int cap_stride = state->stride;
+	unsigned int ref_stride = state->ref_stride;
+
+	for (plane_idx = 0; plane_idx < info->planes_num; plane_idx++) {
+		int i;
+		unsigned int h_div = (plane_idx == 1 || plane_idx == 2) ?
+			info->height_div : 1;
+		const u8 *row_cap = cap;
+		u8 *row_ref = p_ref;
+
+		if (info->planes_num == 3 && plane_idx == 1) {
+			cap_stride /= 2;
+			ref_stride /= 2;
+		}
+
+		if (plane_idx == 1 &&
+		    (info->id == V4L2_PIX_FMT_NV24 ||
+		     info->id == V4L2_PIX_FMT_NV42)) {
+			cap_stride *= 2;
+			ref_stride *= 2;
+		}
+
+		for (i = 0; i < state->visible_height / h_div; i++) {
+			memcpy(row_ref, row_cap, ref_stride);
+			row_ref += ref_stride;
+			row_cap += cap_stride;
+		}
+		cap += cap_stride * (state->coded_height / h_div);
+		p_ref += ref_stride * (state->coded_height / h_div);
+	}
+}
+
+static bool validate_by_version(unsigned int flags, unsigned int version)
+{
+	if (!version || version > V4L2_FWHT_VERSION)
+		return false;
+
+	if (version >= 2) {
+		unsigned int components_num = 1 +
+			((flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >>
+			 V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET);
+		unsigned int pixenc = flags & V4L2_FWHT_FL_PIXENC_MSK;
+
+		if (components_num == 0 || components_num > 4 || !pixenc)
+			return false;
+	}
+	return true;
+}
+
+static bool validate_stateless_params_flags(const struct v4l2_ctrl_fwht_params *params,
+					    const struct v4l2_fwht_pixfmt_info *cur_info)
+{
+	unsigned int width_div =
+		(params->flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2;
+	unsigned int height_div =
+		(params->flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2;
+	unsigned int components_num = 3;
+	unsigned int pixenc = 0;
+
+	if (params->version < 3)
+		return false;
+
+	components_num = 1 + ((params->flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >>
+			      V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET);
+	pixenc = (params->flags & V4L2_FWHT_FL_PIXENC_MSK);
+	if (v4l2_fwht_validate_fmt(cur_info, width_div, height_div,
+				    components_num, pixenc))
+		return true;
+	return false;
+}
+
+
+static void update_state_from_header(struct vicodec_ctx *ctx)
+{
+	const struct fwht_cframe_hdr *p_hdr = &ctx->state.header;
+
+	ctx->state.visible_width = ntohl(p_hdr->width);
+	ctx->state.visible_height = ntohl(p_hdr->height);
+	ctx->state.colorspace = ntohl(p_hdr->colorspace);
+	ctx->state.xfer_func = ntohl(p_hdr->xfer_func);
+	ctx->state.ycbcr_enc = ntohl(p_hdr->ycbcr_enc);
+	ctx->state.quantization = ntohl(p_hdr->quantization);
+}
+
+static int device_process(struct vicodec_ctx *ctx,
+			  struct vb2_v4l2_buffer *src_vb,
+			  struct vb2_v4l2_buffer *dst_vb)
+{
+	struct vicodec_dev *dev = ctx->dev;
+	struct v4l2_fwht_state *state = &ctx->state;
+	u8 *p_src, *p_dst;
+	int ret = 0;
+
+	if (ctx->is_enc || ctx->is_stateless)
+		p_src = vb2_plane_vaddr(&src_vb->vb2_buf, 0);
+	else
+		p_src = state->compressed_frame;
+
+	if (ctx->is_stateless) {
+		struct media_request *src_req = src_vb->vb2_buf.req_obj.req;
+
+		ret = v4l2_ctrl_request_setup(src_req, &ctx->hdl);
+		if (ret)
+			return ret;
+		update_state_from_header(ctx);
+
+		ctx->state.header.size =
+			htonl(vb2_get_plane_payload(&src_vb->vb2_buf, 0));
+		/*
+		 * set the reference buffer from the reference timestamp
+		 * only if this is a P-frame
+		 */
+		if (!(ntohl(ctx->state.header.flags) & V4L2_FWHT_FL_I_FRAME)) {
+			struct vb2_buffer *ref_vb2_buf;
+			struct vb2_queue *vq_cap =
+				v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
+						V4L2_BUF_TYPE_VIDEO_CAPTURE);
+
+			ref_vb2_buf = vb2_find_buffer(vq_cap, ctx->state.ref_frame_ts);
+			if (!ref_vb2_buf)
+				return -EINVAL;
+			if (ref_vb2_buf->state == VB2_BUF_STATE_ERROR)
+				ret = -EINVAL;
+			ctx->state.ref_frame.buf =
+				vb2_plane_vaddr(ref_vb2_buf, 0);
+		} else {
+			ctx->state.ref_frame.buf = NULL;
+		}
+	}
+	p_dst = vb2_plane_vaddr(&dst_vb->vb2_buf, 0);
+	if (!p_src || !p_dst) {
+		v4l2_err(&dev->v4l2_dev,
+			 "Acquiring kernel pointers to buffers failed\n");
+		return -EFAULT;
+	}
+
+	if (ctx->is_enc) {
+		struct vicodec_q_data *q_src;
+		int comp_sz_or_errcode;
+
+		q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+		state->info = q_src->info;
+		comp_sz_or_errcode = v4l2_fwht_encode(state, p_src, p_dst);
+		if (comp_sz_or_errcode < 0)
+			return comp_sz_or_errcode;
+		vb2_set_plane_payload(&dst_vb->vb2_buf, 0, comp_sz_or_errcode);
+	} else {
+		struct vicodec_q_data *q_dst;
+		unsigned int comp_frame_size = ntohl(ctx->state.header.size);
+
+		q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+		if (comp_frame_size > ctx->comp_max_size)
+			return -EINVAL;
+		state->info = q_dst->info;
+		ret = v4l2_fwht_decode(state, p_src, p_dst);
+		if (ret < 0)
+			return ret;
+		if (!ctx->is_stateless)
+			copy_cap_to_ref(p_dst, ctx->state.info, &ctx->state);
+
+		vb2_set_plane_payload(&dst_vb->vb2_buf, 0, q_dst->sizeimage);
+		if (ntohl(ctx->state.header.flags) & V4L2_FWHT_FL_I_FRAME)
+			dst_vb->flags |= V4L2_BUF_FLAG_KEYFRAME;
+		else
+			dst_vb->flags |= V4L2_BUF_FLAG_PFRAME;
+	}
+	return ret;
+}
+
+/*
+ * mem2mem callbacks
+ */
+static enum vb2_buffer_state get_next_header(struct vicodec_ctx *ctx,
+					     u8 **pp, u32 sz)
+{
+	static const u8 magic[] = {
+		0x4f, 0x4f, 0x4f, 0x4f, 0xff, 0xff, 0xff, 0xff
+	};
+	u8 *p = *pp;
+	u32 state;
+	u8 *header = (u8 *)&ctx->state.header;
+
+	state = VB2_BUF_STATE_DONE;
+
+	if (!ctx->header_size) {
+		state = VB2_BUF_STATE_ERROR;
+		for (; p < *pp + sz; p++) {
+			u32 copy;
+
+			p = memchr(p, magic[ctx->comp_magic_cnt],
+				   *pp + sz - p);
+			if (!p) {
+				ctx->comp_magic_cnt = 0;
+				p = *pp + sz;
+				break;
+			}
+			copy = sizeof(magic) - ctx->comp_magic_cnt;
+			if (*pp + sz - p < copy)
+				copy = *pp + sz - p;
+
+			memcpy(header + ctx->comp_magic_cnt, p, copy);
+			ctx->comp_magic_cnt += copy;
+			if (!memcmp(header, magic, ctx->comp_magic_cnt)) {
+				p += copy;
+				state = VB2_BUF_STATE_DONE;
+				break;
+			}
+			ctx->comp_magic_cnt = 0;
+		}
+		if (ctx->comp_magic_cnt < sizeof(magic)) {
+			*pp = p;
+			return state;
+		}
+		ctx->header_size = sizeof(magic);
+	}
+
+	if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) {
+		u32 copy = sizeof(struct fwht_cframe_hdr) - ctx->header_size;
+
+		if (*pp + sz - p < copy)
+			copy = *pp + sz - p;
+
+		memcpy(header + ctx->header_size, p, copy);
+		p += copy;
+		ctx->header_size += copy;
+	}
+	*pp = p;
+	return state;
+}
+
+/* device_run() - prepares and starts the device */
+static void device_run(void *priv)
+{
+	struct vicodec_ctx *ctx = priv;
+	struct vicodec_dev *dev = ctx->dev;
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+	struct vicodec_q_data *q_src, *q_dst;
+	u32 state;
+	struct media_request *src_req;
+
+	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+	src_req = src_buf->vb2_buf.req_obj.req;
+
+	q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+	q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+
+	state = VB2_BUF_STATE_DONE;
+	if (device_process(ctx, src_buf, dst_buf))
+		state = VB2_BUF_STATE_ERROR;
+	else
+		dst_buf->sequence = q_dst->sequence++;
+	dst_buf->flags &= ~V4L2_BUF_FLAG_LAST;
+	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf);
+
+	spin_lock(ctx->lock);
+	if (!ctx->comp_has_next_frame &&
+	    v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx, src_buf)) {
+		dst_buf->flags |= V4L2_BUF_FLAG_LAST;
+		v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event);
+		v4l2_m2m_mark_stopped(ctx->fh.m2m_ctx);
+	}
+	if (ctx->is_enc || ctx->is_stateless) {
+		src_buf->sequence = q_src->sequence++;
+		src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+		v4l2_m2m_buf_done(src_buf, state);
+	} else if (vb2_get_plane_payload(&src_buf->vb2_buf, 0) == ctx->cur_buf_offset) {
+		src_buf->sequence = q_src->sequence++;
+		src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+		v4l2_m2m_buf_done(src_buf, state);
+		ctx->cur_buf_offset = 0;
+		ctx->comp_has_next_frame = false;
+	}
+	v4l2_m2m_buf_done(dst_buf, state);
+
+	ctx->comp_size = 0;
+	ctx->header_size = 0;
+	ctx->comp_magic_cnt = 0;
+	ctx->comp_has_frame = false;
+	spin_unlock(ctx->lock);
+	if (ctx->is_stateless && src_req) {
+		v4l2_ctrl_request_complete(src_req, &ctx->hdl);
+		media_request_manual_complete(src_req);
+	}
+
+	if (ctx->is_enc)
+		v4l2_m2m_job_finish(dev->stateful_enc.m2m_dev, ctx->fh.m2m_ctx);
+	else if (ctx->is_stateless)
+		v4l2_m2m_job_finish(dev->stateless_dec.m2m_dev,
+				    ctx->fh.m2m_ctx);
+	else
+		v4l2_m2m_job_finish(dev->stateful_dec.m2m_dev, ctx->fh.m2m_ctx);
+}
+
+static void job_remove_src_buf(struct vicodec_ctx *ctx, u32 state)
+{
+	struct vb2_v4l2_buffer *src_buf;
+	struct vicodec_q_data *q_src;
+
+	q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+	spin_lock(ctx->lock);
+	src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	src_buf->sequence = q_src->sequence++;
+	v4l2_m2m_buf_done(src_buf, state);
+	ctx->cur_buf_offset = 0;
+	spin_unlock(ctx->lock);
+}
+
+static const struct v4l2_fwht_pixfmt_info *
+info_from_header(const struct fwht_cframe_hdr *p_hdr)
+{
+	unsigned int flags = ntohl(p_hdr->flags);
+	unsigned int width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2;
+	unsigned int height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2;
+	unsigned int components_num = 3;
+	unsigned int pixenc = 0;
+	unsigned int version = ntohl(p_hdr->version);
+
+	if (version >= 2) {
+		components_num = 1 + ((flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >>
+				V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET);
+		pixenc = (flags & V4L2_FWHT_FL_PIXENC_MSK);
+	}
+	return v4l2_fwht_find_nth_fmt(width_div, height_div,
+				     components_num, pixenc, 0);
+}
+
+static bool is_header_valid(const struct fwht_cframe_hdr *p_hdr)
+{
+	const struct v4l2_fwht_pixfmt_info *info;
+	unsigned int w = ntohl(p_hdr->width);
+	unsigned int h = ntohl(p_hdr->height);
+	unsigned int version = ntohl(p_hdr->version);
+	unsigned int flags = ntohl(p_hdr->flags);
+
+	if (w < MIN_WIDTH || w > MAX_WIDTH || h < MIN_HEIGHT || h > MAX_HEIGHT)
+		return false;
+
+	if (!validate_by_version(flags, version))
+		return false;
+
+	info = info_from_header(p_hdr);
+	if (!info)
+		return false;
+	return true;
+}
+
+static void update_capture_data_from_header(struct vicodec_ctx *ctx)
+{
+	struct vicodec_q_data *q_dst = get_q_data(ctx,
+						  V4L2_BUF_TYPE_VIDEO_CAPTURE);
+	const struct fwht_cframe_hdr *p_hdr = &ctx->state.header;
+	const struct v4l2_fwht_pixfmt_info *info = info_from_header(p_hdr);
+	unsigned int flags = ntohl(p_hdr->flags);
+	unsigned int hdr_width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2;
+	unsigned int hdr_height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2;
+
+	/*
+	 * This function should not be used by a stateless codec since
+	 * it changes values in q_data that are not request specific
+	 */
+	WARN_ON(ctx->is_stateless);
+
+	q_dst->info = info;
+	q_dst->visible_width = ntohl(p_hdr->width);
+	q_dst->visible_height = ntohl(p_hdr->height);
+	q_dst->coded_width = vic_round_dim(q_dst->visible_width, hdr_width_div);
+	q_dst->coded_height = vic_round_dim(q_dst->visible_height,
+					    hdr_height_div);
+
+	q_dst->sizeimage = q_dst->coded_width * q_dst->coded_height *
+		q_dst->info->sizeimage_mult / q_dst->info->sizeimage_div;
+	ctx->state.colorspace = ntohl(p_hdr->colorspace);
+
+	ctx->state.xfer_func = ntohl(p_hdr->xfer_func);
+	ctx->state.ycbcr_enc = ntohl(p_hdr->ycbcr_enc);
+	ctx->state.quantization = ntohl(p_hdr->quantization);
+}
+
+static void set_last_buffer(struct vb2_v4l2_buffer *dst_buf,
+			    const struct vb2_v4l2_buffer *src_buf,
+			    struct vicodec_ctx *ctx)
+{
+	struct vicodec_q_data *q_dst = get_q_data(ctx,
+						  V4L2_BUF_TYPE_VIDEO_CAPTURE);
+
+	vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0);
+	dst_buf->sequence = q_dst->sequence++;
+
+	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf);
+	dst_buf->flags |= V4L2_BUF_FLAG_LAST;
+	v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
+}
+
+static int job_ready(void *priv)
+{
+	static const u8 magic[] = {
+		0x4f, 0x4f, 0x4f, 0x4f, 0xff, 0xff, 0xff, 0xff
+	};
+	struct vicodec_ctx *ctx = priv;
+	struct vb2_v4l2_buffer *src_buf;
+	u8 *p_src;
+	u8 *p;
+	u32 sz;
+	u32 state;
+	struct vicodec_q_data *q_dst = get_q_data(ctx,
+						  V4L2_BUF_TYPE_VIDEO_CAPTURE);
+	unsigned int flags;
+	unsigned int hdr_width_div;
+	unsigned int hdr_height_div;
+	unsigned int max_to_copy;
+	unsigned int comp_frame_size;
+
+	if (ctx->source_changed)
+		return 0;
+	if (ctx->is_stateless || ctx->is_enc || ctx->comp_has_frame)
+		return 1;
+
+restart:
+	ctx->comp_has_next_frame = false;
+	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+	if (!src_buf)
+		return 0;
+	p_src = vb2_plane_vaddr(&src_buf->vb2_buf, 0);
+	sz = vb2_get_plane_payload(&src_buf->vb2_buf, 0);
+	p = p_src + ctx->cur_buf_offset;
+
+	state = VB2_BUF_STATE_DONE;
+
+	if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) {
+		state = get_next_header(ctx, &p, p_src + sz - p);
+		if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) {
+			if (v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx,
+							      src_buf))
+				return 1;
+			job_remove_src_buf(ctx, state);
+			goto restart;
+		}
+	}
+
+	comp_frame_size = ntohl(ctx->state.header.size);
+
+	/*
+	 * The current scanned frame might be the first frame of a new
+	 * resolution so its size might be larger than ctx->comp_max_size.
+	 * In that case it is copied up to the current buffer capacity and
+	 * the copy will continue after allocating new large enough buffer
+	 * when restreaming
+	 */
+	max_to_copy = min(comp_frame_size, ctx->comp_max_size);
+
+	if (ctx->comp_size < max_to_copy) {
+		u32 copy = max_to_copy - ctx->comp_size;
+
+		if (copy > p_src + sz - p)
+			copy = p_src + sz - p;
+
+		memcpy(ctx->state.compressed_frame + ctx->comp_size,
+		       p, copy);
+		p += copy;
+		ctx->comp_size += copy;
+		if (ctx->comp_size < max_to_copy) {
+			if (v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx,
+							      src_buf))
+				return 1;
+			job_remove_src_buf(ctx, state);
+			goto restart;
+		}
+	}
+	ctx->cur_buf_offset = p - p_src;
+	if (ctx->comp_size == comp_frame_size)
+		ctx->comp_has_frame = true;
+	ctx->comp_has_next_frame = false;
+	if (ctx->comp_has_frame && sz - ctx->cur_buf_offset >=
+			sizeof(struct fwht_cframe_hdr)) {
+		struct fwht_cframe_hdr *p_hdr = (struct fwht_cframe_hdr *)p;
+		u32 frame_size = ntohl(p_hdr->size);
+		u32 remaining = sz - ctx->cur_buf_offset - sizeof(*p_hdr);
+
+		if (!memcmp(p, magic, sizeof(magic)))
+			ctx->comp_has_next_frame = remaining >= frame_size;
+	}
+	/*
+	 * if the header is invalid the device_run will just drop the frame
+	 * with an error
+	 */
+	if (!is_header_valid(&ctx->state.header) && ctx->comp_has_frame)
+		return 1;
+	flags = ntohl(ctx->state.header.flags);
+	hdr_width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2;
+	hdr_height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2;
+
+	if (ntohl(ctx->state.header.width) != q_dst->visible_width ||
+	    ntohl(ctx->state.header.height) != q_dst->visible_height ||
+	    !q_dst->info ||
+	    hdr_width_div != q_dst->info->width_div ||
+	    hdr_height_div != q_dst->info->height_div) {
+		static const struct v4l2_event rs_event = {
+			.type = V4L2_EVENT_SOURCE_CHANGE,
+			.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
+		};
+
+		struct vb2_v4l2_buffer *dst_buf =
+			v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+
+		update_capture_data_from_header(ctx);
+		v4l2_event_queue_fh(&ctx->fh, &rs_event);
+		set_last_buffer(dst_buf, src_buf, ctx);
+		ctx->source_changed = true;
+		return 0;
+	}
+	return 1;
+}
+
+/*
+ * video ioctls
+ */
+
+static const struct v4l2_fwht_pixfmt_info *find_fmt(u32 fmt)
+{
+	const struct v4l2_fwht_pixfmt_info *info =
+		v4l2_fwht_find_pixfmt(fmt);
+
+	if (!info)
+		info = v4l2_fwht_get_pixfmt(0);
+	return info;
+}
+
+static int vidioc_querycap(struct file *file, void *priv,
+			   struct v4l2_capability *cap)
+{
+	strscpy(cap->driver, VICODEC_NAME, sizeof(cap->driver));
+	strscpy(cap->card, VICODEC_NAME, sizeof(cap->card));
+	snprintf(cap->bus_info, sizeof(cap->bus_info),
+			"platform:%s", VICODEC_NAME);
+	return 0;
+}
+
+static int enum_fmt(struct v4l2_fmtdesc *f, struct vicodec_ctx *ctx,
+		    bool is_out)
+{
+	bool is_uncomp = (ctx->is_enc && is_out) || (!ctx->is_enc && !is_out);
+
+	if (V4L2_TYPE_IS_MULTIPLANAR(f->type) && !multiplanar)
+		return -EINVAL;
+	if (!V4L2_TYPE_IS_MULTIPLANAR(f->type) && multiplanar)
+		return -EINVAL;
+
+	if (is_uncomp) {
+		const struct v4l2_fwht_pixfmt_info *info =
+					get_q_data(ctx, f->type)->info;
+
+		if (ctx->is_enc ||
+		    !vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q))
+			info = v4l2_fwht_get_pixfmt(f->index);
+		else
+			info = v4l2_fwht_find_nth_fmt(info->width_div,
+						     info->height_div,
+						     info->components_num,
+						     info->pixenc,
+						     f->index);
+		if (!info)
+			return -EINVAL;
+		f->pixelformat = info->id;
+	} else {
+		if (f->index)
+			return -EINVAL;
+		f->pixelformat = ctx->is_stateless ?
+			V4L2_PIX_FMT_FWHT_STATELESS : V4L2_PIX_FMT_FWHT;
+		if (!ctx->is_enc && !ctx->is_stateless)
+			f->flags = V4L2_FMT_FLAG_DYN_RESOLUTION |
+				   V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM;
+	}
+	return 0;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
+				   struct v4l2_fmtdesc *f)
+{
+	struct vicodec_ctx *ctx = file2ctx(file);
+
+	return enum_fmt(f, ctx, false);
+}
+
+static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
+				   struct v4l2_fmtdesc *f)
+{
+	struct vicodec_ctx *ctx = file2ctx(file);
+
+	return enum_fmt(f, ctx, true);
+}
+
+static int vidioc_g_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f)
+{
+	struct vicodec_q_data *q_data;
+	struct v4l2_pix_format_mplane *pix_mp;
+	struct v4l2_pix_format *pix;
+	const struct v4l2_fwht_pixfmt_info *info;
+
+	q_data = get_q_data(ctx, f->type);
+	info = q_data->info;
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+		if (multiplanar)
+			return -EINVAL;
+		pix = &f->fmt.pix;
+		pix->width = q_data->coded_width;
+		pix->height = q_data->coded_height;
+		pix->field = V4L2_FIELD_NONE;
+		pix->pixelformat = info->id;
+		pix->bytesperline = q_data->coded_width *
+					info->bytesperline_mult;
+		pix->sizeimage = q_data->sizeimage;
+		pix->colorspace = ctx->state.colorspace;
+		pix->xfer_func = ctx->state.xfer_func;
+		pix->ycbcr_enc = ctx->state.ycbcr_enc;
+		pix->quantization = ctx->state.quantization;
+		break;
+
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		if (!multiplanar)
+			return -EINVAL;
+		pix_mp = &f->fmt.pix_mp;
+		pix_mp->width = q_data->coded_width;
+		pix_mp->height = q_data->coded_height;
+		pix_mp->field = V4L2_FIELD_NONE;
+		pix_mp->pixelformat = info->id;
+		pix_mp->num_planes = 1;
+		pix_mp->plane_fmt[0].bytesperline =
+				q_data->coded_width * info->bytesperline_mult;
+		pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage;
+		pix_mp->colorspace = ctx->state.colorspace;
+		pix_mp->xfer_func = ctx->state.xfer_func;
+		pix_mp->ycbcr_enc = ctx->state.ycbcr_enc;
+		pix_mp->quantization = ctx->state.quantization;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int vidioc_g_fmt_vid_out(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	return vidioc_g_fmt(file2ctx(file), f);
+}
+
+static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	return vidioc_g_fmt(file2ctx(file), f);
+}
+
+static int vidioc_try_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *pix_mp;
+	struct v4l2_pix_format *pix;
+	struct v4l2_plane_pix_format *plane;
+	const struct v4l2_fwht_pixfmt_info *info = ctx->is_stateless ?
+		&pixfmt_stateless_fwht : &pixfmt_fwht;
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+		pix = &f->fmt.pix;
+		if (pix->pixelformat != V4L2_PIX_FMT_FWHT &&
+		    pix->pixelformat != V4L2_PIX_FMT_FWHT_STATELESS)
+			info = find_fmt(pix->pixelformat);
+
+		pix->width = clamp(pix->width, MIN_WIDTH, MAX_WIDTH);
+		pix->width = vic_round_dim(pix->width, info->width_div);
+
+		pix->height = clamp(pix->height, MIN_HEIGHT, MAX_HEIGHT);
+		pix->height = vic_round_dim(pix->height, info->height_div);
+
+		pix->field = V4L2_FIELD_NONE;
+		pix->bytesperline =
+			pix->width * info->bytesperline_mult;
+		pix->sizeimage = pix->width * pix->height *
+			info->sizeimage_mult / info->sizeimage_div;
+		if (pix->pixelformat == V4L2_PIX_FMT_FWHT)
+			pix->sizeimage += sizeof(struct fwht_cframe_hdr);
+		break;
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		pix_mp = &f->fmt.pix_mp;
+		plane = pix_mp->plane_fmt;
+		if (pix_mp->pixelformat != V4L2_PIX_FMT_FWHT &&
+		    pix_mp->pixelformat != V4L2_PIX_FMT_FWHT_STATELESS)
+			info = find_fmt(pix_mp->pixelformat);
+		pix_mp->num_planes = 1;
+
+		pix_mp->width = clamp(pix_mp->width, MIN_WIDTH, MAX_WIDTH);
+		pix_mp->width = vic_round_dim(pix_mp->width, info->width_div);
+
+		pix_mp->height = clamp(pix_mp->height, MIN_HEIGHT, MAX_HEIGHT);
+		pix_mp->height = vic_round_dim(pix_mp->height,
+					       info->height_div);
+
+		pix_mp->field = V4L2_FIELD_NONE;
+		plane->bytesperline =
+			pix_mp->width * info->bytesperline_mult;
+		plane->sizeimage = pix_mp->width * pix_mp->height *
+			info->sizeimage_mult / info->sizeimage_div;
+		if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT)
+			plane->sizeimage += sizeof(struct fwht_cframe_hdr);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+				  struct v4l2_format *f)
+{
+	struct vicodec_ctx *ctx = file2ctx(file);
+	struct v4l2_pix_format_mplane *pix_mp;
+	struct v4l2_pix_format *pix;
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		if (multiplanar)
+			return -EINVAL;
+		pix = &f->fmt.pix;
+		pix->pixelformat = ctx->is_enc ? V4L2_PIX_FMT_FWHT :
+				   find_fmt(f->fmt.pix.pixelformat)->id;
+		pix->colorspace = ctx->state.colorspace;
+		pix->xfer_func = ctx->state.xfer_func;
+		pix->ycbcr_enc = ctx->state.ycbcr_enc;
+		pix->quantization = ctx->state.quantization;
+		break;
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+		if (!multiplanar)
+			return -EINVAL;
+		pix_mp = &f->fmt.pix_mp;
+		pix_mp->pixelformat = ctx->is_enc ? V4L2_PIX_FMT_FWHT :
+				      find_fmt(pix_mp->pixelformat)->id;
+		pix_mp->colorspace = ctx->state.colorspace;
+		pix_mp->xfer_func = ctx->state.xfer_func;
+		pix_mp->ycbcr_enc = ctx->state.ycbcr_enc;
+		pix_mp->quantization = ctx->state.quantization;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return vidioc_try_fmt(ctx, f);
+}
+
+static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
+				  struct v4l2_format *f)
+{
+	struct vicodec_ctx *ctx = file2ctx(file);
+	struct v4l2_pix_format_mplane *pix_mp;
+	struct v4l2_pix_format *pix;
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+		if (multiplanar)
+			return -EINVAL;
+		pix = &f->fmt.pix;
+		if (ctx->is_enc)
+			pix->pixelformat = find_fmt(pix->pixelformat)->id;
+		else if (ctx->is_stateless)
+			pix->pixelformat = V4L2_PIX_FMT_FWHT_STATELESS;
+		else
+			pix->pixelformat = V4L2_PIX_FMT_FWHT;
+		if (!pix->colorspace)
+			pix->colorspace = V4L2_COLORSPACE_REC709;
+		break;
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		if (!multiplanar)
+			return -EINVAL;
+		pix_mp = &f->fmt.pix_mp;
+		if (ctx->is_enc)
+			pix_mp->pixelformat = find_fmt(pix_mp->pixelformat)->id;
+		else if (ctx->is_stateless)
+			pix_mp->pixelformat = V4L2_PIX_FMT_FWHT_STATELESS;
+		else
+			pix_mp->pixelformat = V4L2_PIX_FMT_FWHT;
+		if (!pix_mp->colorspace)
+			pix_mp->colorspace = V4L2_COLORSPACE_REC709;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return vidioc_try_fmt(ctx, f);
+}
+
+static int vidioc_s_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f)
+{
+	struct vicodec_q_data *q_data;
+	struct vb2_queue *vq;
+	bool fmt_changed = true;
+	struct v4l2_pix_format_mplane *pix_mp;
+	struct v4l2_pix_format *pix;
+
+	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+
+	q_data = get_q_data(ctx, f->type);
+	if (!q_data)
+		return -EINVAL;
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+		pix = &f->fmt.pix;
+		if (ctx->is_enc && V4L2_TYPE_IS_OUTPUT(f->type))
+			fmt_changed =
+				!q_data->info ||
+				q_data->info->id != pix->pixelformat ||
+				q_data->coded_width != pix->width ||
+				q_data->coded_height != pix->height;
+
+		if (vb2_is_busy(vq) && fmt_changed)
+			return -EBUSY;
+
+		if (pix->pixelformat == V4L2_PIX_FMT_FWHT)
+			q_data->info = &pixfmt_fwht;
+		else if (pix->pixelformat == V4L2_PIX_FMT_FWHT_STATELESS)
+			q_data->info = &pixfmt_stateless_fwht;
+		else
+			q_data->info = find_fmt(pix->pixelformat);
+		q_data->coded_width = pix->width;
+		q_data->coded_height = pix->height;
+		q_data->sizeimage = pix->sizeimage;
+		break;
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		pix_mp = &f->fmt.pix_mp;
+		if (ctx->is_enc && V4L2_TYPE_IS_OUTPUT(f->type))
+			fmt_changed =
+				!q_data->info ||
+				q_data->info->id != pix_mp->pixelformat ||
+				q_data->coded_width != pix_mp->width ||
+				q_data->coded_height != pix_mp->height;
+
+		if (vb2_is_busy(vq) && fmt_changed)
+			return -EBUSY;
+
+		if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT)
+			q_data->info = &pixfmt_fwht;
+		else if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT_STATELESS)
+			q_data->info = &pixfmt_stateless_fwht;
+		else
+			q_data->info = find_fmt(pix_mp->pixelformat);
+		q_data->coded_width = pix_mp->width;
+		q_data->coded_height = pix_mp->height;
+		q_data->sizeimage = pix_mp->plane_fmt[0].sizeimage;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	dprintk(ctx->dev,
+		"Setting format for type %d, coded wxh: %dx%d, fourcc: 0x%08x\n",
+		f->type, q_data->coded_width, q_data->coded_height,
+		q_data->info->id);
+
+	return 0;
+}
+
+static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	int ret;
+
+	ret = vidioc_try_fmt_vid_cap(file, priv, f);
+	if (ret)
+		return ret;
+
+	return vidioc_s_fmt(file2ctx(file), f);
+}
+
+static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	struct vicodec_ctx *ctx = file2ctx(file);
+	struct vicodec_q_data *q_data;
+	struct vicodec_q_data *q_data_cap;
+	struct v4l2_pix_format *pix;
+	struct v4l2_pix_format_mplane *pix_mp;
+	u32 coded_w = 0, coded_h = 0;
+	unsigned int size = 0;
+	int ret;
+
+	q_data = get_q_data(ctx, f->type);
+	q_data_cap = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+
+	ret = vidioc_try_fmt_vid_out(file, priv, f);
+	if (ret)
+		return ret;
+
+	if (ctx->is_enc) {
+		struct vb2_queue *vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+		struct vb2_queue *vq_cap = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
+							   V4L2_BUF_TYPE_VIDEO_CAPTURE);
+		const struct v4l2_fwht_pixfmt_info *info = ctx->is_stateless ?
+			&pixfmt_stateless_fwht : &pixfmt_fwht;
+
+		if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+			coded_w = f->fmt.pix.width;
+			coded_h = f->fmt.pix.height;
+		} else {
+			coded_w = f->fmt.pix_mp.width;
+			coded_h = f->fmt.pix_mp.height;
+		}
+		if (vb2_is_busy(vq) && (coded_w != q_data->coded_width ||
+					coded_h != q_data->coded_height))
+			return -EBUSY;
+		size = coded_w * coded_h *
+			info->sizeimage_mult / info->sizeimage_div;
+		if (!ctx->is_stateless)
+			size += sizeof(struct fwht_cframe_hdr);
+
+		if (vb2_is_busy(vq_cap) && size > q_data_cap->sizeimage)
+			return -EBUSY;
+	}
+
+	ret = vidioc_s_fmt(file2ctx(file), f);
+	if (!ret) {
+		if (ctx->is_enc) {
+			q_data->visible_width = coded_w;
+			q_data->visible_height = coded_h;
+			q_data_cap->coded_width = coded_w;
+			q_data_cap->coded_height = coded_h;
+			q_data_cap->sizeimage = size;
+		}
+
+		switch (f->type) {
+		case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+			pix = &f->fmt.pix;
+			ctx->state.colorspace = pix->colorspace;
+			ctx->state.xfer_func = pix->xfer_func;
+			ctx->state.ycbcr_enc = pix->ycbcr_enc;
+			ctx->state.quantization = pix->quantization;
+			break;
+		case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+			pix_mp = &f->fmt.pix_mp;
+			ctx->state.colorspace = pix_mp->colorspace;
+			ctx->state.xfer_func = pix_mp->xfer_func;
+			ctx->state.ycbcr_enc = pix_mp->ycbcr_enc;
+			ctx->state.quantization = pix_mp->quantization;
+			break;
+		default:
+			break;
+		}
+	}
+	return ret;
+}
+
+static int vidioc_g_selection(struct file *file, void *priv,
+			      struct v4l2_selection *s)
+{
+	struct vicodec_ctx *ctx = file2ctx(file);
+	struct vicodec_q_data *q_data;
+
+	q_data = get_q_data(ctx, s->type);
+	if (!q_data)
+		return -EINVAL;
+	/*
+	 * encoder supports only cropping on the OUTPUT buffer
+	 * decoder supports only composing on the CAPTURE buffer
+	 */
+	if (ctx->is_enc && s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+		switch (s->target) {
+		case V4L2_SEL_TGT_CROP:
+			s->r.left = 0;
+			s->r.top = 0;
+			s->r.width = q_data->visible_width;
+			s->r.height = q_data->visible_height;
+			return 0;
+		case V4L2_SEL_TGT_CROP_DEFAULT:
+		case V4L2_SEL_TGT_CROP_BOUNDS:
+			s->r.left = 0;
+			s->r.top = 0;
+			s->r.width = q_data->coded_width;
+			s->r.height = q_data->coded_height;
+			return 0;
+		}
+	} else if (!ctx->is_enc && s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+		switch (s->target) {
+		case V4L2_SEL_TGT_COMPOSE:
+			s->r.left = 0;
+			s->r.top = 0;
+			s->r.width = q_data->visible_width;
+			s->r.height = q_data->visible_height;
+			return 0;
+		case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+		case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+			s->r.left = 0;
+			s->r.top = 0;
+			s->r.width = q_data->coded_width;
+			s->r.height = q_data->coded_height;
+			return 0;
+		}
+	}
+	return -EINVAL;
+}
+
+static int vidioc_s_selection(struct file *file, void *priv,
+			      struct v4l2_selection *s)
+{
+	struct vicodec_ctx *ctx = file2ctx(file);
+	struct vicodec_q_data *q_data;
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	q_data = get_q_data(ctx, s->type);
+	if (!q_data)
+		return -EINVAL;
+
+	if (!ctx->is_enc || s->target != V4L2_SEL_TGT_CROP)
+		return -EINVAL;
+
+	s->r.left = 0;
+	s->r.top = 0;
+	q_data->visible_width = clamp(s->r.width, MIN_WIDTH,
+				      q_data->coded_width);
+	s->r.width = q_data->visible_width;
+	q_data->visible_height = clamp(s->r.height, MIN_HEIGHT,
+				       q_data->coded_height);
+	s->r.height = q_data->visible_height;
+	return 0;
+}
+
+static int vicodec_encoder_cmd(struct file *file, void *priv,
+			    struct v4l2_encoder_cmd *ec)
+{
+	struct vicodec_ctx *ctx = file2ctx(file);
+	int ret;
+
+	ret = v4l2_m2m_ioctl_try_encoder_cmd(file, priv, ec);
+	if (ret < 0)
+		return ret;
+
+	if (!vb2_is_streaming(&ctx->fh.m2m_ctx->out_q_ctx.q))
+		return 0;
+
+	ret = v4l2_m2m_ioctl_encoder_cmd(file, priv, ec);
+	if (ret < 0)
+		return ret;
+
+	if (ec->cmd == V4L2_ENC_CMD_STOP &&
+	    v4l2_m2m_has_stopped(ctx->fh.m2m_ctx))
+		v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event);
+
+	if (ec->cmd == V4L2_ENC_CMD_START &&
+	    v4l2_m2m_has_stopped(ctx->fh.m2m_ctx))
+		vb2_clear_last_buffer_dequeued(&ctx->fh.m2m_ctx->cap_q_ctx.q);
+
+	return 0;
+}
+
+static int vicodec_decoder_cmd(struct file *file, void *priv,
+			    struct v4l2_decoder_cmd *dc)
+{
+	struct vicodec_ctx *ctx = file2ctx(file);
+	int ret;
+
+	/*
+	 * This ioctl should not be used with a stateless codec that doesn't
+	 * support holding buffers and the associated flush command.
+	 */
+	WARN_ON(ctx->is_stateless);
+
+	ret = v4l2_m2m_ioctl_try_decoder_cmd(file, priv, dc);
+	if (ret < 0)
+		return ret;
+
+	if (!vb2_is_streaming(&ctx->fh.m2m_ctx->out_q_ctx.q))
+		return 0;
+
+	ret = v4l2_m2m_ioctl_decoder_cmd(file, priv, dc);
+	if (ret < 0)
+		return ret;
+
+	if (dc->cmd == V4L2_DEC_CMD_STOP &&
+	    v4l2_m2m_has_stopped(ctx->fh.m2m_ctx))
+		v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event);
+
+	if (dc->cmd == V4L2_DEC_CMD_START &&
+	    v4l2_m2m_has_stopped(ctx->fh.m2m_ctx))
+		vb2_clear_last_buffer_dequeued(&ctx->fh.m2m_ctx->cap_q_ctx.q);
+
+	return 0;
+}
+
+static int vicodec_enum_framesizes(struct file *file, void *priv,
+				   struct v4l2_frmsizeenum *fsize)
+{
+	switch (fsize->pixel_format) {
+	case V4L2_PIX_FMT_FWHT_STATELESS:
+		break;
+	case V4L2_PIX_FMT_FWHT:
+		break;
+	default:
+		if (find_fmt(fsize->pixel_format)->id == fsize->pixel_format)
+			break;
+		return -EINVAL;
+	}
+
+	if (fsize->index)
+		return -EINVAL;
+
+	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+
+	fsize->stepwise.min_width = MIN_WIDTH;
+	fsize->stepwise.max_width = MAX_WIDTH;
+	fsize->stepwise.step_width = 8;
+	fsize->stepwise.min_height = MIN_HEIGHT;
+	fsize->stepwise.max_height = MAX_HEIGHT;
+	fsize->stepwise.step_height = 8;
+
+	return 0;
+}
+
+static int vicodec_subscribe_event(struct v4l2_fh *fh,
+				const struct v4l2_event_subscription *sub)
+{
+	struct vicodec_ctx *ctx = container_of(fh, struct vicodec_ctx, fh);
+
+	switch (sub->type) {
+	case V4L2_EVENT_SOURCE_CHANGE:
+		if (ctx->is_enc)
+			return -EINVAL;
+		fallthrough;
+	case V4L2_EVENT_EOS:
+		if (ctx->is_stateless)
+			return -EINVAL;
+		return v4l2_event_subscribe(fh, sub, 0, NULL);
+	default:
+		return v4l2_ctrl_subscribe_event(fh, sub);
+	}
+}
+
+static const struct v4l2_ioctl_ops vicodec_ioctl_ops = {
+	.vidioc_querycap	= vidioc_querycap,
+
+	.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap	= vidioc_g_fmt_vid_cap,
+	.vidioc_try_fmt_vid_cap	= vidioc_try_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap	= vidioc_s_fmt_vid_cap,
+
+	.vidioc_g_fmt_vid_cap_mplane	= vidioc_g_fmt_vid_cap,
+	.vidioc_try_fmt_vid_cap_mplane	= vidioc_try_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap_mplane	= vidioc_s_fmt_vid_cap,
+
+	.vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
+	.vidioc_g_fmt_vid_out	= vidioc_g_fmt_vid_out,
+	.vidioc_try_fmt_vid_out	= vidioc_try_fmt_vid_out,
+	.vidioc_s_fmt_vid_out	= vidioc_s_fmt_vid_out,
+
+	.vidioc_g_fmt_vid_out_mplane	= vidioc_g_fmt_vid_out,
+	.vidioc_try_fmt_vid_out_mplane	= vidioc_try_fmt_vid_out,
+	.vidioc_s_fmt_vid_out_mplane	= vidioc_s_fmt_vid_out,
+
+	.vidioc_reqbufs		= v4l2_m2m_ioctl_reqbufs,
+	.vidioc_querybuf	= v4l2_m2m_ioctl_querybuf,
+	.vidioc_qbuf		= v4l2_m2m_ioctl_qbuf,
+	.vidioc_dqbuf		= v4l2_m2m_ioctl_dqbuf,
+	.vidioc_prepare_buf	= v4l2_m2m_ioctl_prepare_buf,
+	.vidioc_create_bufs	= v4l2_m2m_ioctl_create_bufs,
+	.vidioc_expbuf		= v4l2_m2m_ioctl_expbuf,
+	.vidioc_remove_bufs	= v4l2_m2m_ioctl_remove_bufs,
+
+	.vidioc_streamon	= v4l2_m2m_ioctl_streamon,
+	.vidioc_streamoff	= v4l2_m2m_ioctl_streamoff,
+
+	.vidioc_g_selection	= vidioc_g_selection,
+	.vidioc_s_selection	= vidioc_s_selection,
+
+	.vidioc_try_encoder_cmd	= v4l2_m2m_ioctl_try_encoder_cmd,
+	.vidioc_encoder_cmd	= vicodec_encoder_cmd,
+	.vidioc_try_decoder_cmd	= v4l2_m2m_ioctl_try_decoder_cmd,
+	.vidioc_decoder_cmd	= vicodec_decoder_cmd,
+	.vidioc_enum_framesizes = vicodec_enum_framesizes,
+
+	.vidioc_subscribe_event = vicodec_subscribe_event,
+	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+
+/*
+ * Queue operations
+ */
+
+static int vicodec_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
+			       unsigned int *nplanes, unsigned int sizes[],
+			       struct device *alloc_devs[])
+{
+	struct vicodec_ctx *ctx = vb2_get_drv_priv(vq);
+	struct vicodec_q_data *q_data = get_q_data(ctx, vq->type);
+	unsigned int size = q_data->sizeimage;
+
+	if (*nplanes)
+		return sizes[0] < size ? -EINVAL : 0;
+
+	*nplanes = 1;
+	sizes[0] = size;
+	q_data->vb2_sizeimage = size;
+	return 0;
+}
+
+static int vicodec_buf_out_validate(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+
+	vbuf->field = V4L2_FIELD_NONE;
+	return 0;
+}
+
+static int vicodec_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	struct vicodec_q_data *q_data;
+
+	dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type);
+
+	q_data = get_q_data(ctx, vb->vb2_queue->type);
+	if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
+		if (vbuf->field == V4L2_FIELD_ANY)
+			vbuf->field = V4L2_FIELD_NONE;
+		if (vbuf->field != V4L2_FIELD_NONE) {
+			dprintk(ctx->dev, "%s field isn't supported\n",
+					__func__);
+			return -EINVAL;
+		}
+	}
+
+	if (vb2_plane_size(vb, 0) < q_data->vb2_sizeimage) {
+		dprintk(ctx->dev,
+			"%s data will not fit into plane (%lu < %lu)\n",
+			__func__, vb2_plane_size(vb, 0),
+			(long)q_data->vb2_sizeimage);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void vicodec_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	unsigned int sz = vb2_get_plane_payload(&vbuf->vb2_buf, 0);
+	u8 *p_src = vb2_plane_vaddr(&vbuf->vb2_buf, 0);
+	u8 *p = p_src;
+	struct vb2_queue *vq_out = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
+						   V4L2_BUF_TYPE_VIDEO_OUTPUT);
+	struct vb2_queue *vq_cap = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
+						   V4L2_BUF_TYPE_VIDEO_CAPTURE);
+	bool header_valid = false;
+	static const struct v4l2_event rs_event = {
+		.type = V4L2_EVENT_SOURCE_CHANGE,
+		.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
+	};
+
+	if (V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type) &&
+	    vb2_is_streaming(vb->vb2_queue) &&
+	    v4l2_m2m_dst_buf_is_last(ctx->fh.m2m_ctx)) {
+		unsigned int i;
+
+		for (i = 0; i < vb->num_planes; i++)
+			vb2_set_plane_payload(vb, i, 0);
+
+		vbuf->field = V4L2_FIELD_NONE;
+		vbuf->sequence =
+			get_q_data(ctx, vb->vb2_queue->type)->sequence++;
+
+		v4l2_m2m_last_buffer_done(ctx->fh.m2m_ctx, vbuf);
+		v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event);
+		return;
+	}
+
+	/* buf_queue handles only the first source change event */
+	if (ctx->first_source_change_sent) {
+		v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
+		return;
+	}
+
+	/*
+	 * if both queues are streaming, the source change event is
+	 * handled in job_ready
+	 */
+	if (vb2_is_streaming(vq_cap) && vb2_is_streaming(vq_out)) {
+		v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
+		return;
+	}
+
+	/*
+	 * source change event is relevant only for the stateful decoder
+	 * in the compressed stream
+	 */
+	if (ctx->is_stateless || ctx->is_enc ||
+	    V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type)) {
+		v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
+		return;
+	}
+
+	do {
+		enum vb2_buffer_state state =
+			get_next_header(ctx, &p, p_src + sz - p);
+
+		if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) {
+			v4l2_m2m_buf_done(vbuf, state);
+			return;
+		}
+		header_valid = is_header_valid(&ctx->state.header);
+		/*
+		 * p points right after the end of the header in the
+		 * buffer. If the header is invalid we set p to point
+		 * to the next byte after the start of the header
+		 */
+		if (!header_valid) {
+			p = p - sizeof(struct fwht_cframe_hdr) + 1;
+			if (p < p_src)
+				p = p_src;
+			ctx->header_size = 0;
+			ctx->comp_magic_cnt = 0;
+		}
+
+	} while (!header_valid);
+
+	ctx->cur_buf_offset = p - p_src;
+	update_capture_data_from_header(ctx);
+	ctx->first_source_change_sent = true;
+	v4l2_event_queue_fh(&ctx->fh, &rs_event);
+	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
+}
+
+static void vicodec_return_bufs(struct vb2_queue *q, u32 state)
+{
+	struct vicodec_ctx *ctx = vb2_get_drv_priv(q);
+	struct vb2_v4l2_buffer *vbuf;
+
+	for (;;) {
+		if (V4L2_TYPE_IS_OUTPUT(q->type))
+			vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+		else
+			vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+		if (vbuf == NULL)
+			return;
+		if (ctx->is_stateless && V4L2_TYPE_IS_OUTPUT(q->type)) {
+			struct media_request *req = vbuf->vb2_buf.req_obj.req;
+
+			v4l2_ctrl_request_complete(req, &ctx->hdl);
+			media_request_manual_complete(req);
+		}
+		spin_lock(ctx->lock);
+		v4l2_m2m_buf_done(vbuf, state);
+		spin_unlock(ctx->lock);
+	}
+}
+
+static unsigned int total_frame_size(struct vicodec_q_data *q_data)
+{
+	unsigned int size;
+	unsigned int chroma_div;
+
+	if (!q_data->info) {
+		WARN_ON(1);
+		return 0;
+	}
+	size = q_data->coded_width * q_data->coded_height;
+	chroma_div = q_data->info->width_div * q_data->info->height_div;
+
+	if (q_data->info->components_num == 4)
+		return 2 * size + 2 * (size / chroma_div);
+	else if (q_data->info->components_num == 3)
+		return size + 2 * (size / chroma_div);
+	return size;
+}
+
+static int vicodec_start_streaming(struct vb2_queue *q,
+				   unsigned int count)
+{
+	struct vicodec_ctx *ctx = vb2_get_drv_priv(q);
+	struct vicodec_q_data *q_data = get_q_data(ctx, q->type);
+	struct v4l2_fwht_state *state = &ctx->state;
+	const struct v4l2_fwht_pixfmt_info *info = q_data->info;
+	unsigned int size = q_data->coded_width * q_data->coded_height;
+	unsigned int chroma_div;
+	unsigned int total_planes_size;
+	u8 *new_comp_frame = NULL;
+
+	chroma_div = info->width_div * info->height_div;
+	q_data->sequence = 0;
+
+	v4l2_m2m_update_start_streaming_state(ctx->fh.m2m_ctx, q);
+
+	state->gop_cnt = 0;
+
+	if ((V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) ||
+	    (V4L2_TYPE_IS_CAPTURE(q->type) && ctx->is_enc))
+		return 0;
+
+	if (info->id == V4L2_PIX_FMT_FWHT ||
+	    info->id == V4L2_PIX_FMT_FWHT_STATELESS) {
+		vicodec_return_bufs(q, VB2_BUF_STATE_QUEUED);
+		return -EINVAL;
+	}
+	total_planes_size = total_frame_size(q_data);
+	ctx->comp_max_size = total_planes_size;
+
+	state->visible_width = q_data->visible_width;
+	state->visible_height = q_data->visible_height;
+	state->coded_width = q_data->coded_width;
+	state->coded_height = q_data->coded_height;
+	state->stride = q_data->coded_width *
+				info->bytesperline_mult;
+
+	if (ctx->is_stateless) {
+		state->ref_stride = state->stride;
+		return 0;
+	}
+	state->ref_stride = q_data->coded_width * info->luma_alpha_step;
+
+	state->ref_frame.buf = kvmalloc(total_planes_size, GFP_KERNEL);
+	state->ref_frame.luma = state->ref_frame.buf;
+	new_comp_frame = kvmalloc(ctx->comp_max_size, GFP_KERNEL);
+
+	if (!state->ref_frame.luma || !new_comp_frame) {
+		kvfree(state->ref_frame.luma);
+		kvfree(new_comp_frame);
+		vicodec_return_bufs(q, VB2_BUF_STATE_QUEUED);
+		return -ENOMEM;
+	}
+	/*
+	 * if state->compressed_frame was already allocated then
+	 * it contain data of the first frame of the new resolution
+	 */
+	if (state->compressed_frame) {
+		if (ctx->comp_size > ctx->comp_max_size)
+			ctx->comp_size = ctx->comp_max_size;
+
+		memcpy(new_comp_frame,
+		       state->compressed_frame, ctx->comp_size);
+	}
+
+	kvfree(state->compressed_frame);
+	state->compressed_frame = new_comp_frame;
+
+	if (info->components_num < 3) {
+		state->ref_frame.cb = NULL;
+		state->ref_frame.cr = NULL;
+		state->ref_frame.alpha = NULL;
+		return 0;
+	}
+
+	state->ref_frame.cb = state->ref_frame.luma + size;
+	state->ref_frame.cr = state->ref_frame.cb + size / chroma_div;
+
+	if (info->components_num == 4)
+		state->ref_frame.alpha =
+			state->ref_frame.cr + size / chroma_div;
+	else
+		state->ref_frame.alpha = NULL;
+
+	return 0;
+}
+
+static void vicodec_stop_streaming(struct vb2_queue *q)
+{
+	struct vicodec_ctx *ctx = vb2_get_drv_priv(q);
+
+	vicodec_return_bufs(q, VB2_BUF_STATE_ERROR);
+
+	v4l2_m2m_update_stop_streaming_state(ctx->fh.m2m_ctx, q);
+
+	if (V4L2_TYPE_IS_OUTPUT(q->type) &&
+	    v4l2_m2m_has_stopped(ctx->fh.m2m_ctx))
+		v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event);
+
+	if (!ctx->is_enc && V4L2_TYPE_IS_OUTPUT(q->type))
+		ctx->first_source_change_sent = false;
+
+	if ((!V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) ||
+	    (V4L2_TYPE_IS_OUTPUT(q->type) && ctx->is_enc)) {
+		if (!ctx->is_stateless)
+			kvfree(ctx->state.ref_frame.buf);
+		ctx->state.ref_frame.buf = NULL;
+		ctx->state.ref_frame.luma = NULL;
+		ctx->comp_max_size = 0;
+		ctx->source_changed = false;
+	}
+	if (V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) {
+		ctx->cur_buf_offset = 0;
+		ctx->comp_size = 0;
+		ctx->header_size = 0;
+		ctx->comp_magic_cnt = 0;
+		ctx->comp_has_frame = false;
+		ctx->comp_has_next_frame = false;
+	}
+}
+
+static void vicodec_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->hdl);
+	media_request_manual_complete(vb->req_obj.req);
+}
+
+
+static const struct vb2_ops vicodec_qops = {
+	.queue_setup		= vicodec_queue_setup,
+	.buf_out_validate	= vicodec_buf_out_validate,
+	.buf_prepare		= vicodec_buf_prepare,
+	.buf_queue		= vicodec_buf_queue,
+	.buf_request_complete	= vicodec_buf_request_complete,
+	.start_streaming	= vicodec_start_streaming,
+	.stop_streaming		= vicodec_stop_streaming,
+};
+
+static int queue_init(void *priv, struct vb2_queue *src_vq,
+		      struct vb2_queue *dst_vq)
+{
+	struct vicodec_ctx *ctx = priv;
+	int ret;
+
+	src_vq->type = (multiplanar ?
+			V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
+			V4L2_BUF_TYPE_VIDEO_OUTPUT);
+	src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+	src_vq->drv_priv = ctx;
+	src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+	src_vq->ops = &vicodec_qops;
+	src_vq->mem_ops = &vb2_vmalloc_memops;
+	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	if (ctx->is_enc) {
+		src_vq->lock = &ctx->dev->stateful_enc.mutex;
+		src_vq->min_reqbufs_allocation = VICODEC_REC_BUFS;
+	} else if (ctx->is_stateless) {
+		src_vq->lock = &ctx->dev->stateless_dec.mutex;
+	} else {
+		src_vq->lock = &ctx->dev->stateful_dec.mutex;
+	}
+	src_vq->supports_requests = ctx->is_stateless;
+	src_vq->requires_requests = ctx->is_stateless;
+	ret = vb2_queue_init(src_vq);
+	if (ret)
+		return ret;
+
+	dst_vq->type = (multiplanar ?
+			V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
+			V4L2_BUF_TYPE_VIDEO_CAPTURE);
+	dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+	dst_vq->max_num_buffers = 64;
+	dst_vq->drv_priv = ctx;
+	dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+	dst_vq->ops = &vicodec_qops;
+	dst_vq->mem_ops = &vb2_vmalloc_memops;
+	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	dst_vq->lock = src_vq->lock;
+	if (!ctx->is_stateless && !ctx->is_enc)
+		dst_vq->min_reqbufs_allocation = VICODEC_REC_BUFS;
+
+	return vb2_queue_init(dst_vq);
+}
+
+static int vicodec_try_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vicodec_ctx *ctx = container_of(ctrl->handler,
+			struct vicodec_ctx, hdl);
+	const struct v4l2_ctrl_fwht_params *params;
+	struct vicodec_q_data *q_dst = get_q_data(ctx,
+			V4L2_BUF_TYPE_VIDEO_CAPTURE);
+
+	switch (ctrl->id) {
+	case V4L2_CID_STATELESS_FWHT_PARAMS:
+		if (!q_dst->info)
+			return -EINVAL;
+		params = ctrl->p_new.p_fwht_params;
+		if (params->width > q_dst->coded_width ||
+		    params->width < MIN_WIDTH ||
+		    params->height > q_dst->coded_height ||
+		    params->height < MIN_HEIGHT)
+			return -EINVAL;
+		if (!validate_by_version(params->flags, params->version))
+			return -EINVAL;
+		if (!validate_stateless_params_flags(params, q_dst->info))
+			return -EINVAL;
+		return 0;
+	default:
+		return 0;
+	}
+	return 0;
+}
+
+static void update_header_from_stateless_params(struct vicodec_ctx *ctx,
+						const struct v4l2_ctrl_fwht_params *params)
+{
+	struct fwht_cframe_hdr *p_hdr = &ctx->state.header;
+
+	p_hdr->magic1 = FWHT_MAGIC1;
+	p_hdr->magic2 = FWHT_MAGIC2;
+	p_hdr->version = htonl(params->version);
+	p_hdr->width = htonl(params->width);
+	p_hdr->height = htonl(params->height);
+	p_hdr->flags = htonl(params->flags);
+	p_hdr->colorspace = htonl(params->colorspace);
+	p_hdr->xfer_func = htonl(params->xfer_func);
+	p_hdr->ycbcr_enc = htonl(params->ycbcr_enc);
+	p_hdr->quantization = htonl(params->quantization);
+}
+
+static int vicodec_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vicodec_ctx *ctx = container_of(ctrl->handler,
+					       struct vicodec_ctx, hdl);
+	const struct v4l2_ctrl_fwht_params *params;
+
+	switch (ctrl->id) {
+	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+		ctx->state.gop_size = ctrl->val;
+		return 0;
+	case V4L2_CID_FWHT_I_FRAME_QP:
+		ctx->state.i_frame_qp = ctrl->val;
+		return 0;
+	case V4L2_CID_FWHT_P_FRAME_QP:
+		ctx->state.p_frame_qp = ctrl->val;
+		return 0;
+	case V4L2_CID_STATELESS_FWHT_PARAMS:
+		params = ctrl->p_new.p_fwht_params;
+		update_header_from_stateless_params(ctx, params);
+		ctx->state.ref_frame_ts = params->backward_ref_ts;
+		return 0;
+	}
+	return -EINVAL;
+}
+
+static const struct v4l2_ctrl_ops vicodec_ctrl_ops = {
+	.s_ctrl = vicodec_s_ctrl,
+	.try_ctrl = vicodec_try_ctrl,
+};
+
+static const struct v4l2_ctrl_config vicodec_ctrl_stateless_state = {
+	.ops		= &vicodec_ctrl_ops,
+	.id		= V4L2_CID_STATELESS_FWHT_PARAMS,
+	.elem_size      = sizeof(struct v4l2_ctrl_fwht_params),
+};
+
+/*
+ * File operations
+ */
+static int vicodec_open(struct file *file)
+{
+	const struct v4l2_fwht_pixfmt_info *info = v4l2_fwht_get_pixfmt(0);
+	struct video_device *vfd = video_devdata(file);
+	struct vicodec_dev *dev = video_drvdata(file);
+	struct vicodec_ctx *ctx = NULL;
+	struct v4l2_ctrl_handler *hdl;
+	unsigned int raw_size;
+	unsigned int comp_size;
+	int rc = 0;
+
+	if (mutex_lock_interruptible(vfd->lock))
+		return -ERESTARTSYS;
+	ctx = kzalloc_obj(*ctx);
+	if (!ctx) {
+		rc = -ENOMEM;
+		goto open_unlock;
+	}
+
+	if (vfd == &dev->stateful_enc.vfd)
+		ctx->is_enc = true;
+	else if (vfd == &dev->stateless_dec.vfd)
+		ctx->is_stateless = true;
+
+	v4l2_fh_init(&ctx->fh, video_devdata(file));
+	ctx->dev = dev;
+	hdl = &ctx->hdl;
+	v4l2_ctrl_handler_init(hdl, 5);
+	v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_MPEG_VIDEO_GOP_SIZE,
+			  1, 16, 1, 10);
+	v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_I_FRAME_QP,
+			  1, 31, 1, 20);
+	v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_P_FRAME_QP,
+			  1, 31, 1, 20);
+
+	if (ctx->is_stateless)
+		v4l2_ctrl_new_custom(hdl, &vicodec_ctrl_stateless_state, NULL);
+	else
+		v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, ctx->is_enc ?
+				  V4L2_CID_MIN_BUFFERS_FOR_OUTPUT :
+				  V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
+				  VICODEC_REC_BUFS, VICODEC_REC_BUFS, 1,
+				  VICODEC_REC_BUFS);
+
+	if (hdl->error) {
+		rc = hdl->error;
+		v4l2_ctrl_handler_free(hdl);
+		kfree(ctx);
+		goto open_unlock;
+	}
+	ctx->fh.ctrl_handler = hdl;
+	v4l2_ctrl_handler_setup(hdl);
+
+	if (ctx->is_enc)
+		ctx->q_data[V4L2_M2M_SRC].info = info;
+	else if (ctx->is_stateless)
+		ctx->q_data[V4L2_M2M_SRC].info = &pixfmt_stateless_fwht;
+	else
+		ctx->q_data[V4L2_M2M_SRC].info = &pixfmt_fwht;
+	ctx->q_data[V4L2_M2M_SRC].coded_width = 1280;
+	ctx->q_data[V4L2_M2M_SRC].coded_height = 720;
+	ctx->q_data[V4L2_M2M_SRC].visible_width = 1280;
+	ctx->q_data[V4L2_M2M_SRC].visible_height = 720;
+	raw_size = 1280 * 720 * info->sizeimage_mult / info->sizeimage_div;
+	comp_size = 1280 * 720 * pixfmt_fwht.sizeimage_mult /
+				 pixfmt_fwht.sizeimage_div;
+	if (ctx->is_enc)
+		ctx->q_data[V4L2_M2M_SRC].sizeimage = raw_size;
+	else if (ctx->is_stateless)
+		ctx->q_data[V4L2_M2M_SRC].sizeimage = comp_size;
+	else
+		ctx->q_data[V4L2_M2M_SRC].sizeimage =
+			comp_size + sizeof(struct fwht_cframe_hdr);
+	ctx->q_data[V4L2_M2M_DST] = ctx->q_data[V4L2_M2M_SRC];
+	if (ctx->is_enc) {
+		ctx->q_data[V4L2_M2M_DST].info = &pixfmt_fwht;
+		ctx->q_data[V4L2_M2M_DST].sizeimage =
+			comp_size + sizeof(struct fwht_cframe_hdr);
+	} else {
+		ctx->q_data[V4L2_M2M_DST].info = info;
+		ctx->q_data[V4L2_M2M_DST].sizeimage = raw_size;
+	}
+
+	ctx->state.colorspace = V4L2_COLORSPACE_REC709;
+
+	if (ctx->is_enc) {
+		ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateful_enc.m2m_dev,
+						    ctx, &queue_init);
+		ctx->lock = &dev->stateful_enc.lock;
+	} else if (ctx->is_stateless) {
+		ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateless_dec.m2m_dev,
+						    ctx, &queue_init);
+		ctx->lock = &dev->stateless_dec.lock;
+	} else {
+		ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateful_dec.m2m_dev,
+						    ctx, &queue_init);
+		ctx->lock = &dev->stateful_dec.lock;
+	}
+
+	if (IS_ERR(ctx->fh.m2m_ctx)) {
+		rc = PTR_ERR(ctx->fh.m2m_ctx);
+
+		v4l2_ctrl_handler_free(hdl);
+		v4l2_fh_exit(&ctx->fh);
+		kfree(ctx);
+		goto open_unlock;
+	}
+
+	v4l2_fh_add(&ctx->fh, file);
+
+open_unlock:
+	mutex_unlock(vfd->lock);
+	return rc;
+}
+
+static int vicodec_release(struct file *file)
+{
+	struct video_device *vfd = video_devdata(file);
+	struct vicodec_ctx *ctx = file2ctx(file);
+
+	mutex_lock(vfd->lock);
+	v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
+	mutex_unlock(vfd->lock);
+	v4l2_fh_del(&ctx->fh, file);
+	v4l2_fh_exit(&ctx->fh);
+	v4l2_ctrl_handler_free(&ctx->hdl);
+	kvfree(ctx->state.compressed_frame);
+	kfree(ctx);
+
+	return 0;
+}
+
+static int vicodec_request_validate(struct media_request *req)
+{
+	struct media_request_object *obj;
+	struct v4l2_ctrl_handler *parent_hdl, *hdl;
+	struct vicodec_ctx *ctx = NULL;
+	struct v4l2_ctrl *ctrl;
+	unsigned int count;
+
+	list_for_each_entry(obj, &req->objects, list) {
+		struct vb2_buffer *vb;
+
+		if (vb2_request_object_is_buffer(obj)) {
+			vb = container_of(obj, struct vb2_buffer, req_obj);
+			ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+			break;
+		}
+	}
+
+	if (!ctx) {
+		pr_err("No buffer was provided with the request\n");
+		return -ENOENT;
+	}
+
+	count = vb2_request_buffer_cnt(req);
+	if (!count) {
+		v4l2_info(&ctx->dev->v4l2_dev,
+			  "No buffer was provided with the request\n");
+		return -ENOENT;
+	} else if (count > 1) {
+		v4l2_info(&ctx->dev->v4l2_dev,
+			  "More than one buffer was provided with the request\n");
+		return -EINVAL;
+	}
+
+	parent_hdl = &ctx->hdl;
+
+	hdl = v4l2_ctrl_request_hdl_find(req, parent_hdl);
+	if (!hdl) {
+		v4l2_info(&ctx->dev->v4l2_dev, "Missing codec control\n");
+		return -ENOENT;
+	}
+	ctrl = v4l2_ctrl_request_hdl_ctrl_find(hdl,
+					       vicodec_ctrl_stateless_state.id);
+	v4l2_ctrl_request_hdl_put(hdl);
+	if (!ctrl) {
+		v4l2_info(&ctx->dev->v4l2_dev,
+			  "Missing required codec control\n");
+		return -ENOENT;
+	}
+
+	return vb2_request_validate(req);
+}
+
+static void vicodec_request_queue(struct media_request *req)
+{
+	media_request_mark_manual_completion(req);
+	v4l2_m2m_request_queue(req);
+}
+
+static const struct v4l2_file_operations vicodec_fops = {
+	.owner		= THIS_MODULE,
+	.open		= vicodec_open,
+	.release	= vicodec_release,
+	.poll		= v4l2_m2m_fop_poll,
+	.unlocked_ioctl	= video_ioctl2,
+	.mmap		= v4l2_m2m_fop_mmap,
+};
+
+static const struct video_device vicodec_videodev = {
+	.name		= VICODEC_NAME,
+	.vfl_dir	= VFL_DIR_M2M,
+	.fops		= &vicodec_fops,
+	.ioctl_ops	= &vicodec_ioctl_ops,
+	.minor		= -1,
+	.release	= video_device_release_empty,
+};
+
+static const struct media_device_ops vicodec_m2m_media_ops = {
+	.req_validate	= vicodec_request_validate,
+	.req_queue	= vicodec_request_queue,
+};
+
+static const struct v4l2_m2m_ops m2m_ops = {
+	.device_run	= device_run,
+	.job_ready	= job_ready,
+};
+
+static int register_instance(struct vicodec_dev *dev,
+			     struct vicodec_dev_instance *dev_instance,
+			     const char *name, bool is_enc, bool is_stateless)
+{
+	struct video_device *vfd;
+	int ret;
+
+	spin_lock_init(&dev_instance->lock);
+	mutex_init(&dev_instance->mutex);
+	dev_instance->m2m_dev = v4l2_m2m_init(&m2m_ops);
+	if (IS_ERR(dev_instance->m2m_dev)) {
+		v4l2_err(&dev->v4l2_dev, "Failed to init vicodec enc device\n");
+		return PTR_ERR(dev_instance->m2m_dev);
+	}
+
+	dev_instance->vfd = vicodec_videodev;
+	vfd = &dev_instance->vfd;
+	vfd->lock = &dev_instance->mutex;
+	vfd->v4l2_dev = &dev->v4l2_dev;
+	strscpy(vfd->name, name, sizeof(vfd->name));
+	vfd->device_caps = V4L2_CAP_STREAMING |
+		(multiplanar ? V4L2_CAP_VIDEO_M2M_MPLANE : V4L2_CAP_VIDEO_M2M);
+	if (is_enc || is_stateless) {
+		v4l2_disable_ioctl(vfd, VIDIOC_DECODER_CMD);
+		v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD);
+	}
+	if (!is_enc) {
+		v4l2_disable_ioctl(vfd, VIDIOC_ENCODER_CMD);
+		v4l2_disable_ioctl(vfd, VIDIOC_TRY_ENCODER_CMD);
+	}
+	video_set_drvdata(vfd, dev);
+
+	ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to register video device '%s'\n", name);
+		v4l2_m2m_release(dev_instance->m2m_dev);
+		return ret;
+	}
+	v4l2_info(&dev->v4l2_dev, "Device '%s' registered as /dev/video%d\n",
+		  name, vfd->num);
+	return 0;
+}
+
+static void vicodec_v4l2_dev_release(struct v4l2_device *v4l2_dev)
+{
+	struct vicodec_dev *dev = container_of(v4l2_dev, struct vicodec_dev, v4l2_dev);
+
+	v4l2_device_unregister(&dev->v4l2_dev);
+	v4l2_m2m_release(dev->stateful_enc.m2m_dev);
+	v4l2_m2m_release(dev->stateful_dec.m2m_dev);
+	v4l2_m2m_release(dev->stateless_dec.m2m_dev);
+#ifdef CONFIG_MEDIA_CONTROLLER
+	media_device_cleanup(&dev->mdev);
+#endif
+	kfree(dev);
+}
+
+static int vicodec_probe(struct platform_device *pdev)
+{
+	struct vicodec_dev *dev;
+	int ret;
+
+	dev = kzalloc_obj(*dev);
+	if (!dev)
+		return -ENOMEM;
+
+	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+	if (ret)
+		goto free_dev;
+
+	dev->v4l2_dev.release = vicodec_v4l2_dev_release;
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	dev->mdev.dev = &pdev->dev;
+	strscpy(dev->mdev.model, "vicodec", sizeof(dev->mdev.model));
+	strscpy(dev->mdev.bus_info, "platform:vicodec",
+		sizeof(dev->mdev.bus_info));
+	media_device_init(&dev->mdev);
+	dev->mdev.ops = &vicodec_m2m_media_ops;
+	dev->v4l2_dev.mdev = &dev->mdev;
+#endif
+
+	platform_set_drvdata(pdev, dev);
+
+	ret = register_instance(dev, &dev->stateful_enc, "stateful-encoder",
+				true, false);
+	if (ret)
+		goto unreg_dev;
+
+	ret = register_instance(dev, &dev->stateful_dec, "stateful-decoder",
+				false, false);
+	if (ret)
+		goto unreg_sf_enc;
+
+	ret = register_instance(dev, &dev->stateless_dec, "stateless-decoder",
+				false, true);
+	if (ret)
+		goto unreg_sf_dec;
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	ret = v4l2_m2m_register_media_controller(dev->stateful_enc.m2m_dev,
+						 &dev->stateful_enc.vfd,
+						 MEDIA_ENT_F_PROC_VIDEO_ENCODER);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for enc\n");
+		goto unreg_m2m;
+	}
+
+	ret = v4l2_m2m_register_media_controller(dev->stateful_dec.m2m_dev,
+						 &dev->stateful_dec.vfd,
+						 MEDIA_ENT_F_PROC_VIDEO_DECODER);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for dec\n");
+		goto unreg_m2m_sf_enc_mc;
+	}
+
+	ret = v4l2_m2m_register_media_controller(dev->stateless_dec.m2m_dev,
+						 &dev->stateless_dec.vfd,
+						 MEDIA_ENT_F_PROC_VIDEO_DECODER);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for stateless dec\n");
+		goto unreg_m2m_sf_dec_mc;
+	}
+
+	ret = media_device_register(&dev->mdev);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n");
+		goto unreg_m2m_sl_dec_mc;
+	}
+#endif
+	return 0;
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+unreg_m2m_sl_dec_mc:
+	v4l2_m2m_unregister_media_controller(dev->stateless_dec.m2m_dev);
+unreg_m2m_sf_dec_mc:
+	v4l2_m2m_unregister_media_controller(dev->stateful_dec.m2m_dev);
+unreg_m2m_sf_enc_mc:
+	v4l2_m2m_unregister_media_controller(dev->stateful_enc.m2m_dev);
+unreg_m2m:
+	video_unregister_device(&dev->stateless_dec.vfd);
+	v4l2_m2m_release(dev->stateless_dec.m2m_dev);
+#endif
+unreg_sf_dec:
+	video_unregister_device(&dev->stateful_dec.vfd);
+	v4l2_m2m_release(dev->stateful_dec.m2m_dev);
+unreg_sf_enc:
+	video_unregister_device(&dev->stateful_enc.vfd);
+	v4l2_m2m_release(dev->stateful_enc.m2m_dev);
+unreg_dev:
+	v4l2_device_unregister(&dev->v4l2_dev);
+free_dev:
+	kfree(dev);
+
+	return ret;
+}
+
+static void vicodec_remove(struct platform_device *pdev)
+{
+	struct vicodec_dev *dev = platform_get_drvdata(pdev);
+
+	v4l2_info(&dev->v4l2_dev, "Removing " VICODEC_NAME);
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	media_device_unregister(&dev->mdev);
+	v4l2_m2m_unregister_media_controller(dev->stateful_enc.m2m_dev);
+	v4l2_m2m_unregister_media_controller(dev->stateful_dec.m2m_dev);
+	v4l2_m2m_unregister_media_controller(dev->stateless_dec.m2m_dev);
+#endif
+
+	video_unregister_device(&dev->stateful_enc.vfd);
+	video_unregister_device(&dev->stateful_dec.vfd);
+	video_unregister_device(&dev->stateless_dec.vfd);
+	v4l2_device_put(&dev->v4l2_dev);
+}
+
+static struct platform_driver vicodec_pdrv = {
+	.probe		= vicodec_probe,
+	.remove		= vicodec_remove,
+	.driver		= {
+		.name	= VICODEC_NAME,
+	},
+};
+
+static void __exit vicodec_exit(void)
+{
+	platform_driver_unregister(&vicodec_pdrv);
+	platform_device_unregister(&vicodec_pdev);
+}
+
+static int __init vicodec_init(void)
+{
+	int ret;
+
+	ret = platform_device_register(&vicodec_pdev);
+	if (ret)
+		return ret;
+
+	ret = platform_driver_register(&vicodec_pdrv);
+	if (ret)
+		platform_device_unregister(&vicodec_pdev);
+
+	return ret;
+}
+
+module_init(vicodec_init);
+module_exit(vicodec_exit);
diff --git a/drivers/media/test-drivers/vidtv/Kconfig b/drivers/media/test-drivers/vidtv/Kconfig
new file mode 100644
index 000000000..8cb10b756
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/Kconfig
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config DVB_VIDTV
+	tristate "Virtual DVB Driver (vidtv)"
+	depends on DVB_CORE && MEDIA_SUPPORT && I2C
+	select CRC32
+	help
+	  The virtual DVB test driver serves as a reference DVB driver and helps
+	  validate the existing APIs in the media subsystem. It can also aid developers
+	  working on userspace applications.
+
+	  When in doubt, say N.
diff --git a/drivers/media/test-drivers/vidtv/Makefile b/drivers/media/test-drivers/vidtv/Makefile
new file mode 100644
index 000000000..330089e3b
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+
+dvb-vidtv-tuner-objs := vidtv_tuner.o
+dvb-vidtv-demod-objs := vidtv_demod.o
+dvb-vidtv-bridge-objs := vidtv_bridge.o vidtv_common.o vidtv_ts.o vidtv_psi.o \
+			 vidtv_pes.o vidtv_s302m.o vidtv_channel.o vidtv_mux.o
+
+obj-$(CONFIG_DVB_VIDTV)	+= dvb-vidtv-tuner.o dvb-vidtv-demod.o \
+			   dvb-vidtv-bridge.o
diff --git a/drivers/media/test-drivers/vidtv/vidtv_bridge.c b/drivers/media/test-drivers/vidtv/vidtv_bridge.c
new file mode 100644
index 000000000..fd69b4ee1
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_bridge.c
@@ -0,0 +1,616 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * The Virtual DTV test driver serves as a reference DVB driver and helps
+ * validate the existing APIs in the media subsystem. It can also aid
+ * developers working on userspace applications.
+ *
+ * When this module is loaded, it will attempt to modprobe 'dvb_vidtv_tuner'
+ * and 'dvb_vidtv_demod'.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#include <linux/dev_printk.h>
+#include <linux/moduleparam.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/time.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+#include <media/dvbdev.h>
+#include <media/media-device.h>
+
+#include "vidtv_bridge.h"
+#include "vidtv_common.h"
+#include "vidtv_demod.h"
+#include "vidtv_mux.h"
+#include "vidtv_ts.h"
+#include "vidtv_tuner.h"
+
+#define MUX_BUF_MIN_SZ 90164
+#define MUX_BUF_MAX_SZ (MUX_BUF_MIN_SZ * 10)
+#define TUNER_DEFAULT_ADDR 0x68
+#define DEMOD_DEFAULT_ADDR 0x60
+#define VIDTV_DEFAULT_NETWORK_ID 0xff44
+#define VIDTV_DEFAULT_NETWORK_NAME "LinuxTV.org"
+#define VIDTV_DEFAULT_TS_ID 0x4081
+
+/*
+ * The LNBf fake parameters here are the ranges used by an
+ * Universal (extended) European LNBf, which is likely the most common LNBf
+ * found on Satellite digital TV system nowadays.
+ */
+#define LNB_CUT_FREQUENCY	11700000	/* high IF frequency */
+#define LNB_LOW_FREQ		9750000		/* low IF frequency */
+#define LNB_HIGH_FREQ		10600000	/* transition frequency */
+
+static unsigned int drop_tslock_prob_on_low_snr;
+module_param(drop_tslock_prob_on_low_snr, uint, 0444);
+MODULE_PARM_DESC(drop_tslock_prob_on_low_snr,
+		 "Probability of losing the TS lock if the signal quality is bad");
+
+static unsigned int recover_tslock_prob_on_good_snr;
+module_param(recover_tslock_prob_on_good_snr, uint, 0444);
+MODULE_PARM_DESC(recover_tslock_prob_on_good_snr,
+		 "Probability recovering the TS lock when the signal improves");
+
+static unsigned int mock_power_up_delay_msec;
+module_param(mock_power_up_delay_msec, uint, 0444);
+MODULE_PARM_DESC(mock_power_up_delay_msec, "Simulate a power up delay");
+
+static unsigned int mock_tune_delay_msec;
+module_param(mock_tune_delay_msec, uint, 0444);
+MODULE_PARM_DESC(mock_tune_delay_msec, "Simulate a tune delay");
+
+static unsigned int vidtv_valid_dvb_t_freqs[NUM_VALID_TUNER_FREQS] = {
+	474000000
+};
+
+module_param_array(vidtv_valid_dvb_t_freqs, uint, NULL, 0444);
+MODULE_PARM_DESC(vidtv_valid_dvb_t_freqs,
+		 "Valid DVB-T frequencies to simulate, in Hz");
+
+static unsigned int vidtv_valid_dvb_c_freqs[NUM_VALID_TUNER_FREQS] = {
+	474000000
+};
+
+module_param_array(vidtv_valid_dvb_c_freqs, uint, NULL, 0444);
+MODULE_PARM_DESC(vidtv_valid_dvb_c_freqs,
+		 "Valid DVB-C frequencies to simulate, in Hz");
+
+static unsigned int vidtv_valid_dvb_s_freqs[NUM_VALID_TUNER_FREQS] = {
+	11362000
+};
+module_param_array(vidtv_valid_dvb_s_freqs, uint, NULL, 0444);
+MODULE_PARM_DESC(vidtv_valid_dvb_s_freqs,
+		 "Valid DVB-S/S2 frequencies to simulate at Ku-Band, in kHz");
+
+static unsigned int max_frequency_shift_hz;
+module_param(max_frequency_shift_hz, uint, 0444);
+MODULE_PARM_DESC(max_frequency_shift_hz,
+		 "Maximum shift in HZ allowed when tuning in a channel");
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nums);
+
+/*
+ * Influences the signal acquisition time. See ISO/IEC 13818-1 : 2000. p. 113.
+ */
+static unsigned int si_period_msec = 40;
+module_param(si_period_msec, uint, 0444);
+MODULE_PARM_DESC(si_period_msec, "How often to send SI packets. Default: 40ms");
+
+static unsigned int pcr_period_msec = 40;
+module_param(pcr_period_msec, uint, 0444);
+MODULE_PARM_DESC(pcr_period_msec,
+		 "How often to send PCR packets. Default: 40ms");
+
+static unsigned int mux_rate_kbytes_sec = 4096;
+module_param(mux_rate_kbytes_sec, uint, 0444);
+MODULE_PARM_DESC(mux_rate_kbytes_sec, "Mux rate: will pad stream if below");
+
+static unsigned int pcr_pid = 0x200;
+module_param(pcr_pid, uint, 0444);
+MODULE_PARM_DESC(pcr_pid, "PCR PID for all channels: defaults to 0x200");
+
+static unsigned int mux_buf_sz_pkts;
+module_param(mux_buf_sz_pkts, uint, 0444);
+MODULE_PARM_DESC(mux_buf_sz_pkts,
+		 "Size for the internal mux buffer in multiples of 188 bytes");
+
+static u32 vidtv_bridge_mux_buf_sz_for_mux_rate(void)
+{
+	u32 max_elapsed_time_msecs =  VIDTV_MAX_SLEEP_USECS / USEC_PER_MSEC;
+	u32 mux_buf_sz = mux_buf_sz_pkts * TS_PACKET_LEN;
+	u32 nbytes_expected;
+
+	nbytes_expected = mux_rate_kbytes_sec;
+	nbytes_expected *= max_elapsed_time_msecs;
+
+	mux_buf_sz = roundup(nbytes_expected, TS_PACKET_LEN);
+	mux_buf_sz += mux_buf_sz / 10;
+
+	if (mux_buf_sz < MUX_BUF_MIN_SZ)
+		mux_buf_sz = MUX_BUF_MIN_SZ;
+
+	if (mux_buf_sz > MUX_BUF_MAX_SZ)
+		mux_buf_sz = MUX_BUF_MAX_SZ;
+
+	return mux_buf_sz;
+}
+
+static bool vidtv_bridge_check_demod_lock(struct vidtv_dvb *dvb, u32 n)
+{
+	enum fe_status status;
+
+	dvb->fe[n]->ops.read_status(dvb->fe[n], &status);
+
+	return status == (FE_HAS_SIGNAL  |
+			  FE_HAS_CARRIER |
+			  FE_HAS_VITERBI |
+			  FE_HAS_SYNC    |
+			  FE_HAS_LOCK);
+}
+
+/*
+ * called on a separate thread by the mux when new packets become available
+ */
+static void vidtv_bridge_on_new_pkts_avail(void *priv, u8 *buf, u32 npkts)
+{
+	struct vidtv_dvb *dvb = priv;
+
+	/* drop packets if we lose the lock */
+	if (vidtv_bridge_check_demod_lock(dvb, 0))
+		dvb_dmx_swfilter_packets(&dvb->demux, buf, npkts);
+}
+
+static int vidtv_start_streaming(struct vidtv_dvb *dvb)
+{
+	struct vidtv_mux_init_args mux_args = {
+		.mux_rate_kbytes_sec         = mux_rate_kbytes_sec,
+		.on_new_packets_available_cb = vidtv_bridge_on_new_pkts_avail,
+		.pcr_period_usecs            = pcr_period_msec * USEC_PER_MSEC,
+		.si_period_usecs             = si_period_msec * USEC_PER_MSEC,
+		.pcr_pid                     = pcr_pid,
+		.transport_stream_id         = VIDTV_DEFAULT_TS_ID,
+		.network_id                  = VIDTV_DEFAULT_NETWORK_ID,
+		.network_name                = VIDTV_DEFAULT_NETWORK_NAME,
+		.priv                        = dvb,
+	};
+	struct device *dev = &dvb->pdev->dev;
+	u32 mux_buf_sz;
+
+	if (dvb->streaming) {
+		dev_warn_ratelimited(dev, "Already streaming. Skipping.\n");
+		return 0;
+	}
+
+	if (mux_buf_sz_pkts)
+		mux_buf_sz = mux_buf_sz_pkts;
+	else
+		mux_buf_sz = vidtv_bridge_mux_buf_sz_for_mux_rate();
+
+	mux_args.mux_buf_sz  = mux_buf_sz;
+
+	dvb->mux = vidtv_mux_init(dvb->fe[0], dev, &mux_args);
+	if (!dvb->mux)
+		return -ENOMEM;
+
+	dvb->streaming = true;
+	vidtv_mux_start_thread(dvb->mux);
+
+	dev_dbg_ratelimited(dev, "Started streaming\n");
+	return 0;
+}
+
+static int vidtv_stop_streaming(struct vidtv_dvb *dvb)
+{
+	struct device *dev = &dvb->pdev->dev;
+
+	if (!dvb->streaming) {
+		dev_warn_ratelimited(dev, "No streaming. Skipping.\n");
+		return 0;
+	}
+
+	dvb->streaming = false;
+	vidtv_mux_stop_thread(dvb->mux);
+	vidtv_mux_destroy(dvb->mux);
+	dvb->mux = NULL;
+
+	dev_dbg_ratelimited(dev, "Stopped streaming\n");
+	return 0;
+}
+
+static int vidtv_start_feed(struct dvb_demux_feed *feed)
+{
+	struct dvb_demux *demux = feed->demux;
+	struct vidtv_dvb *dvb   = demux->priv;
+	int ret;
+	int rc;
+
+	if (!demux->dmx.frontend)
+		return -EINVAL;
+
+	mutex_lock(&dvb->feed_lock);
+
+	dvb->nfeeds++;
+	rc = dvb->nfeeds;
+
+	if (dvb->nfeeds == 1) {
+		ret = vidtv_start_streaming(dvb);
+		if (ret < 0) {
+			dvb->nfeeds--;
+			rc = ret;
+		}
+	}
+
+	mutex_unlock(&dvb->feed_lock);
+	return rc;
+}
+
+static int vidtv_stop_feed(struct dvb_demux_feed *feed)
+{
+	struct dvb_demux *demux = feed->demux;
+	struct vidtv_dvb *dvb   = demux->priv;
+	int err = 0;
+
+	mutex_lock(&dvb->feed_lock);
+	dvb->nfeeds--;
+
+	if (!dvb->nfeeds)
+		err = vidtv_stop_streaming(dvb);
+
+	mutex_unlock(&dvb->feed_lock);
+	return err;
+}
+
+static struct dvb_frontend *vidtv_get_frontend_ptr(struct i2c_client *c)
+{
+	struct vidtv_demod_state *state = i2c_get_clientdata(c);
+
+	/* the demod will set this when its probe function runs */
+	return &state->frontend;
+}
+
+static int vidtv_master_xfer(struct i2c_adapter *i2c_adap,
+			     struct i2c_msg msgs[],
+			     int num)
+{
+	/*
+	 * Right now, this virtual driver doesn't really send or receive
+	 * messages from I2C. A real driver will require an implementation
+	 * here.
+	 */
+	return 0;
+}
+
+static u32 vidtv_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C;
+}
+
+static const struct i2c_algorithm vidtv_i2c_algorithm = {
+	.master_xfer   = vidtv_master_xfer,
+	.functionality = vidtv_i2c_func,
+};
+
+static int vidtv_bridge_i2c_register_adap(struct vidtv_dvb *dvb)
+{
+	struct i2c_adapter *i2c_adapter = &dvb->i2c_adapter;
+
+	strscpy(i2c_adapter->name, "vidtv_i2c", sizeof(i2c_adapter->name));
+	i2c_adapter->owner      = THIS_MODULE;
+	i2c_adapter->algo       = &vidtv_i2c_algorithm;
+	i2c_adapter->algo_data  = NULL;
+	i2c_adapter->timeout    = 500;
+	i2c_adapter->retries    = 3;
+	i2c_adapter->dev.parent = &dvb->pdev->dev;
+
+	i2c_set_adapdata(i2c_adapter, dvb);
+	return i2c_add_adapter(&dvb->i2c_adapter);
+}
+
+static int vidtv_bridge_register_adap(struct vidtv_dvb *dvb)
+{
+	int ret = 0;
+
+	ret = dvb_register_adapter(&dvb->adapter,
+				   KBUILD_MODNAME,
+				   THIS_MODULE,
+				   &dvb->i2c_adapter.dev,
+				   adapter_nums);
+
+	return ret;
+}
+
+static int vidtv_bridge_dmx_init(struct vidtv_dvb *dvb)
+{
+	dvb->demux.dmx.capabilities = DMX_TS_FILTERING |
+				      DMX_SECTION_FILTERING;
+
+	dvb->demux.priv       = dvb;
+	dvb->demux.filternum  = 256;
+	dvb->demux.feednum    = 256;
+	dvb->demux.start_feed = vidtv_start_feed;
+	dvb->demux.stop_feed  = vidtv_stop_feed;
+
+	return dvb_dmx_init(&dvb->demux);
+}
+
+static int vidtv_bridge_dmxdev_init(struct vidtv_dvb *dvb)
+{
+	dvb->dmx_dev.filternum    = 256;
+	dvb->dmx_dev.demux        = &dvb->demux.dmx;
+	dvb->dmx_dev.capabilities = 0;
+
+	return dvb_dmxdev_init(&dvb->dmx_dev, &dvb->adapter);
+}
+
+static int vidtv_bridge_probe_demod(struct vidtv_dvb *dvb, u32 n)
+{
+	struct vidtv_demod_config cfg = {
+		.drop_tslock_prob_on_low_snr     = drop_tslock_prob_on_low_snr,
+		.recover_tslock_prob_on_good_snr = recover_tslock_prob_on_good_snr,
+	};
+	dvb->i2c_client_demod[n] = dvb_module_probe("dvb_vidtv_demod",
+						    NULL,
+						    &dvb->i2c_adapter,
+						    DEMOD_DEFAULT_ADDR,
+						    &cfg);
+
+	/* driver will not work anyways so bail out */
+	if (!dvb->i2c_client_demod[n])
+		return -ENODEV;
+
+	/* retrieve a ptr to the frontend state */
+	dvb->fe[n] = vidtv_get_frontend_ptr(dvb->i2c_client_demod[n]);
+
+	return 0;
+}
+
+static int vidtv_bridge_probe_tuner(struct vidtv_dvb *dvb, u32 n)
+{
+	struct vidtv_tuner_config cfg = {
+		.fe                       = dvb->fe[n],
+		.mock_power_up_delay_msec = mock_power_up_delay_msec,
+		.mock_tune_delay_msec     = mock_tune_delay_msec,
+	};
+	u32 freq;
+	int i;
+
+	/* TODO: check if the frequencies are at a valid range */
+
+	memcpy(cfg.vidtv_valid_dvb_t_freqs,
+	       vidtv_valid_dvb_t_freqs,
+	       sizeof(vidtv_valid_dvb_t_freqs));
+
+	memcpy(cfg.vidtv_valid_dvb_c_freqs,
+	       vidtv_valid_dvb_c_freqs,
+	       sizeof(vidtv_valid_dvb_c_freqs));
+
+	/*
+	 * Convert Satellite frequencies from Ku-band in kHZ into S-band
+	 * frequencies in Hz.
+	 */
+	for (i = 0; i < ARRAY_SIZE(vidtv_valid_dvb_s_freqs); i++) {
+		freq = vidtv_valid_dvb_s_freqs[i];
+		if (freq) {
+			if (freq < LNB_CUT_FREQUENCY)
+				freq = abs(freq - LNB_LOW_FREQ);
+			else
+				freq = abs(freq - LNB_HIGH_FREQ);
+		}
+		cfg.vidtv_valid_dvb_s_freqs[i] = freq;
+	}
+
+	cfg.max_frequency_shift_hz = max_frequency_shift_hz;
+
+	dvb->i2c_client_tuner[n] = dvb_module_probe("dvb_vidtv_tuner",
+						    NULL,
+						    &dvb->i2c_adapter,
+						    TUNER_DEFAULT_ADDR,
+						    &cfg);
+
+	return (dvb->i2c_client_tuner[n]) ? 0 : -ENODEV;
+}
+
+static int vidtv_bridge_dvb_init(struct vidtv_dvb *dvb)
+{
+	int ret, i, j;
+
+	ret = vidtv_bridge_i2c_register_adap(dvb);
+	if (ret < 0)
+		goto fail_i2c;
+
+	ret = vidtv_bridge_register_adap(dvb);
+	if (ret < 0)
+		goto fail_adapter;
+	dvb_register_media_controller(&dvb->adapter, &dvb->mdev);
+
+	for (i = 0; i < NUM_FE; ++i) {
+		ret = vidtv_bridge_probe_demod(dvb, i);
+		if (ret < 0)
+			goto fail_demod_probe;
+
+		ret = vidtv_bridge_probe_tuner(dvb, i);
+		if (ret < 0)
+			goto fail_tuner_probe;
+
+		ret = dvb_register_frontend(&dvb->adapter, dvb->fe[i]);
+		if (ret < 0)
+			goto fail_fe;
+	}
+
+	ret = vidtv_bridge_dmx_init(dvb);
+	if (ret < 0)
+		goto fail_dmx;
+
+	ret = vidtv_bridge_dmxdev_init(dvb);
+	if (ret < 0)
+		goto fail_dmx_dev;
+
+	for (j = 0; j < NUM_FE; ++j) {
+		ret = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx,
+						      &dvb->dmx_fe[j]);
+		if (ret < 0)
+			goto fail_dmx_conn;
+
+		/*
+		 * The source of the demux is a frontend connected
+		 * to the demux.
+		 */
+		dvb->dmx_fe[j].source = DMX_FRONTEND_0;
+	}
+
+	return ret;
+
+fail_dmx_conn:
+	for (j = j - 1; j >= 0; --j)
+		dvb->demux.dmx.remove_frontend(&dvb->demux.dmx,
+					       &dvb->dmx_fe[j]);
+	dvb_dmxdev_release(&dvb->dmx_dev);
+fail_dmx_dev:
+	dvb_dmx_release(&dvb->demux);
+fail_dmx:
+fail_demod_probe:
+	for (i = i - 1; i >= 0; --i) {
+		dvb_unregister_frontend(dvb->fe[i]);
+fail_fe:
+		dvb_module_release(dvb->i2c_client_tuner[i]);
+fail_tuner_probe:
+		dvb_module_release(dvb->i2c_client_demod[i]);
+	}
+fail_adapter:
+	dvb_unregister_adapter(&dvb->adapter);
+fail_i2c:
+	i2c_del_adapter(&dvb->i2c_adapter);
+
+	return ret;
+}
+
+static int vidtv_bridge_probe(struct platform_device *pdev)
+{
+	struct vidtv_dvb *dvb;
+	int ret;
+
+	dvb = kzalloc_obj(*dvb);
+	if (!dvb)
+		return -ENOMEM;
+
+	dvb->pdev = pdev;
+
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	dvb->mdev.dev = &pdev->dev;
+
+	strscpy(dvb->mdev.model, "vidtv", sizeof(dvb->mdev.model));
+	strscpy(dvb->mdev.bus_info, "platform:vidtv", sizeof(dvb->mdev.bus_info));
+
+	media_device_init(&dvb->mdev);
+#endif
+
+	ret = vidtv_bridge_dvb_init(dvb);
+	if (ret < 0)
+		goto err_dvb;
+
+	mutex_init(&dvb->feed_lock);
+
+	platform_set_drvdata(pdev, dvb);
+
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	ret = media_device_register(&dvb->mdev);
+	if (ret) {
+		dev_err(dvb->mdev.dev,
+			"media device register failed (err=%d)\n", ret);
+		goto err_media_device_register;
+	}
+#endif /* CONFIG_MEDIA_CONTROLLER_DVB */
+
+	dev_info(&pdev->dev, "Successfully initialized vidtv!\n");
+	return ret;
+
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+err_media_device_register:
+	media_device_cleanup(&dvb->mdev);
+#endif /* CONFIG_MEDIA_CONTROLLER_DVB */
+err_dvb:
+	kfree(dvb);
+	return ret;
+}
+
+static void vidtv_bridge_remove(struct platform_device *pdev)
+{
+	struct vidtv_dvb *dvb;
+	u32 i;
+
+	dvb = platform_get_drvdata(pdev);
+
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	media_device_unregister(&dvb->mdev);
+	media_device_cleanup(&dvb->mdev);
+#endif /* CONFIG_MEDIA_CONTROLLER_DVB */
+
+	mutex_destroy(&dvb->feed_lock);
+
+	for (i = 0; i < NUM_FE; ++i) {
+		dvb_unregister_frontend(dvb->fe[i]);
+		dvb_module_release(dvb->i2c_client_tuner[i]);
+		dvb_module_release(dvb->i2c_client_demod[i]);
+	}
+
+	dvb_dmxdev_release(&dvb->dmx_dev);
+	dvb_dmx_release(&dvb->demux);
+	dvb_unregister_adapter(&dvb->adapter);
+	dev_info(&pdev->dev, "Successfully removed vidtv\n");
+}
+
+static void vidtv_bridge_dev_release(struct device *dev)
+{
+	struct vidtv_dvb *dvb;
+
+	dvb = dev_get_drvdata(dev);
+	kfree(dvb);
+}
+
+static struct platform_device vidtv_bridge_dev = {
+	.name		= VIDTV_PDEV_NAME,
+	.dev.release	= vidtv_bridge_dev_release,
+};
+
+static struct platform_driver vidtv_bridge_driver = {
+	.driver = {
+		.name = VIDTV_PDEV_NAME,
+	},
+	.probe    = vidtv_bridge_probe,
+	.remove = vidtv_bridge_remove,
+};
+
+static void __exit vidtv_bridge_exit(void)
+{
+	platform_driver_unregister(&vidtv_bridge_driver);
+	platform_device_unregister(&vidtv_bridge_dev);
+}
+
+static int __init vidtv_bridge_init(void)
+{
+	int ret;
+
+	ret = platform_device_register(&vidtv_bridge_dev);
+	if (ret) {
+		platform_device_put(&vidtv_bridge_dev);
+		return ret;
+	}
+
+	ret = platform_driver_register(&vidtv_bridge_driver);
+	if (ret)
+		platform_device_unregister(&vidtv_bridge_dev);
+
+	return ret;
+}
+
+module_init(vidtv_bridge_init);
+module_exit(vidtv_bridge_exit);
+
+MODULE_DESCRIPTION("Virtual Digital TV Test Driver");
+MODULE_AUTHOR("Daniel W. S. Almeida");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("vidtv");
+MODULE_ALIAS("dvb_vidtv");
diff --git a/drivers/media/test-drivers/vidtv/vidtv_bridge.h b/drivers/media/test-drivers/vidtv/vidtv_bridge.h
new file mode 100644
index 000000000..de47ce6e7
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_bridge.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * The Virtual DTV test driver serves as a reference DVB driver and helps
+ * validate the existing APIs in the media subsystem. It can also aid
+ * developers working on userspace applications.
+ *
+ * When this module is loaded, it will attempt to modprobe 'dvb_vidtv_tuner' and 'dvb_vidtv_demod'.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#ifndef VIDTV_BRIDGE_H
+#define VIDTV_BRIDGE_H
+
+/*
+ * For now, only one frontend is supported. See vidtv_start_streaming()
+ */
+#define NUM_FE 1
+#define VIDTV_PDEV_NAME "vidtv"
+
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+
+#include <media/dmxdev.h>
+#include <media/dvb_demux.h>
+#include <media/dvb_frontend.h>
+#include <media/media-device.h>
+
+#include "vidtv_mux.h"
+
+/**
+ * struct vidtv_dvb - Vidtv bridge state
+ * @pdev: The platform device. Obtained when the bridge is probed.
+ * @fe: The frontends. Obtained when probing the demodulator modules.
+ * @adapter: Represents a DTV adapter. See 'dvb_register_adapter'.
+ * @demux: The demux used by the dvb_dmx_swfilter_packets() call.
+ * @dmx_dev: Represents a demux device.
+ * @dmx_fe: The frontends associated with the demux.
+ * @i2c_adapter: The i2c_adapter associated with the bridge driver.
+ * @i2c_client_demod: The i2c_clients associated with the demodulator modules.
+ * @i2c_client_tuner: The i2c_clients associated with the tuner modules.
+ * @nfeeds: The number of feeds active.
+ * @feed_lock: Protects access to the start/stop stream logic/data.
+ * @streaming: Whether we are streaming now.
+ * @mux: The abstraction responsible for delivering MPEG TS packets to the bridge.
+ * @mdev: The media_device struct for media controller support.
+ */
+struct vidtv_dvb {
+	struct platform_device *pdev;
+	struct dvb_frontend *fe[NUM_FE];
+	struct dvb_adapter adapter;
+	struct dvb_demux demux;
+	struct dmxdev dmx_dev;
+	struct dmx_frontend dmx_fe[NUM_FE];
+	struct i2c_adapter i2c_adapter;
+	struct i2c_client *i2c_client_demod[NUM_FE];
+	struct i2c_client *i2c_client_tuner[NUM_FE];
+
+	u32 nfeeds;
+	struct mutex feed_lock; /* Protects access to the start/stop stream logic/data. */
+
+	bool streaming;
+
+	struct vidtv_mux *mux;
+
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	struct media_device mdev;
+#endif /* CONFIG_MEDIA_CONTROLLER_DVB */
+};
+
+#endif // VIDTV_BRIDG_H
diff --git a/drivers/media/test-drivers/vidtv/vidtv_channel.c b/drivers/media/test-drivers/vidtv/vidtv_channel.c
new file mode 100644
index 000000000..5f8c3af87
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_channel.c
@@ -0,0 +1,553 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Vidtv serves as a reference DVB driver and helps validate the existing APIs
+ * in the media subsystem. It can also aid developers working on userspace
+ * applications.
+ *
+ * This file contains the code for a 'channel' abstraction.
+ *
+ * When vidtv boots, it will create some hardcoded channels.
+ * Their services will be concatenated to populate the SDT.
+ * Their programs will be concatenated to populate the PAT
+ * Their events will be concatenated to populate the EIT
+ * For each program in the PAT, a PMT section will be created
+ * The PMT section for a channel will be assigned its streams.
+ * Every stream will have its corresponding encoder polled to produce TS packets
+ * These packets may be interleaved by the mux and then delivered to the bridge
+ *
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#include <linux/dev_printk.h>
+#include <linux/ratelimit.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include "vidtv_channel.h"
+#include "vidtv_common.h"
+#include "vidtv_encoder.h"
+#include "vidtv_mux.h"
+#include "vidtv_psi.h"
+#include "vidtv_s302m.h"
+
+static void vidtv_channel_encoder_destroy(struct vidtv_encoder *e)
+{
+	struct vidtv_encoder *tmp = NULL;
+	struct vidtv_encoder *curr = e;
+
+	while (curr) {
+		/* forward the call to the derived type */
+		tmp = curr;
+		curr = curr->next;
+		tmp->destroy(tmp);
+	}
+}
+
+#define ENCODING_ISO8859_15 "\x0b"
+#define TS_NIT_PID	0x10
+
+/*
+ * init an audio only channel with a s302m encoder
+ */
+struct vidtv_channel
+*vidtv_channel_s302m_init(struct vidtv_channel *head, u16 transport_stream_id)
+{
+	const __be32 s302m_fid              = cpu_to_be32(VIDTV_S302M_FORMAT_IDENTIFIER);
+	char *event_text = ENCODING_ISO8859_15 "Bagatelle No. 25 in A minor for solo piano, also known as F\xfcr Elise, composed by Ludwig van Beethoven";
+	char *event_name = ENCODING_ISO8859_15 "Ludwig van Beethoven: F\xfcr Elise";
+	struct vidtv_s302m_encoder_init_args encoder_args = {};
+	char *iso_language_code = ENCODING_ISO8859_15 "eng";
+	char *provider = ENCODING_ISO8859_15 "LinuxTV.org";
+	char *name = ENCODING_ISO8859_15 "Beethoven";
+	const u16 s302m_es_pid              = 0x111; /* packet id for the ES */
+	const u16 s302m_program_pid         = 0x101; /* packet id for PMT*/
+	const u16 s302m_service_id          = 0x880;
+	const u16 s302m_program_num         = 0x880;
+	const u16 s302m_beethoven_event_id  = 1;
+	struct vidtv_channel *s302m;
+
+	s302m = kzalloc_obj(*s302m);
+	if (!s302m)
+		return NULL;
+
+	s302m->name = kstrdup(name, GFP_KERNEL);
+	if (!s302m->name)
+		goto free_s302m;
+
+	s302m->service = vidtv_psi_sdt_service_init(NULL, s302m_service_id, false, true);
+	if (!s302m->service)
+		goto free_name;
+
+	s302m->service->descriptor = (struct vidtv_psi_desc *)
+				     vidtv_psi_service_desc_init(NULL,
+								 DIGITAL_RADIO_SOUND_SERVICE,
+								 name,
+								 provider);
+	if (!s302m->service->descriptor)
+		goto free_service;
+
+	s302m->transport_stream_id = transport_stream_id;
+
+	s302m->program = vidtv_psi_pat_program_init(NULL,
+						    s302m_service_id,
+						    s302m_program_pid);
+	if (!s302m->program)
+		goto free_service;
+
+	s302m->program_num = s302m_program_num;
+
+	s302m->streams = vidtv_psi_pmt_stream_init(NULL,
+						   STREAM_PRIVATE_DATA,
+						   s302m_es_pid);
+	if (!s302m->streams)
+		goto free_program;
+
+	s302m->streams->descriptor = (struct vidtv_psi_desc *)
+				     vidtv_psi_registration_desc_init(NULL,
+								      s302m_fid,
+								      NULL,
+								      0);
+	if (!s302m->streams->descriptor)
+		goto free_streams;
+
+	encoder_args.es_pid = s302m_es_pid;
+
+	s302m->encoders = vidtv_s302m_encoder_init(encoder_args);
+	if (!s302m->encoders)
+		goto free_streams;
+
+	s302m->events = vidtv_psi_eit_event_init(NULL, s302m_beethoven_event_id);
+	if (!s302m->events)
+		goto free_encoders;
+	s302m->events->descriptor = (struct vidtv_psi_desc *)
+				    vidtv_psi_short_event_desc_init(NULL,
+								    iso_language_code,
+								    event_name,
+								    event_text);
+	if (!s302m->events->descriptor)
+		goto free_events;
+
+	if (head) {
+		while (head->next)
+			head = head->next;
+
+		head->next = s302m;
+	}
+
+	return s302m;
+
+free_events:
+	vidtv_psi_eit_event_destroy(s302m->events);
+free_encoders:
+	vidtv_s302m_encoder_destroy(s302m->encoders);
+free_streams:
+	vidtv_psi_pmt_stream_destroy(s302m->streams);
+free_program:
+	vidtv_psi_pat_program_destroy(s302m->program);
+free_service:
+	vidtv_psi_sdt_service_destroy(s302m->service);
+free_name:
+	kfree(s302m->name);
+free_s302m:
+	kfree(s302m);
+
+	return NULL;
+}
+
+static struct vidtv_psi_table_eit_event
+*vidtv_channel_eit_event_cat_into_new(struct vidtv_mux *m)
+{
+	/* Concatenate the events */
+	const struct vidtv_channel *cur_chnl = m->channels;
+	struct vidtv_psi_table_eit_event *curr = NULL;
+	struct vidtv_psi_table_eit_event *head = NULL;
+	struct vidtv_psi_table_eit_event *tail = NULL;
+	struct vidtv_psi_desc *desc = NULL;
+	u16 event_id;
+
+	if (!cur_chnl)
+		return NULL;
+
+	while (cur_chnl) {
+		curr = cur_chnl->events;
+
+		if (!curr)
+			dev_warn_ratelimited(m->dev,
+					     "No events found for channel %s\n",
+					     cur_chnl->name);
+
+		while (curr) {
+			event_id = be16_to_cpu(curr->event_id);
+			tail = vidtv_psi_eit_event_init(tail, event_id);
+			if (!tail) {
+				vidtv_psi_eit_event_destroy(head);
+				return NULL;
+			}
+
+			desc = vidtv_psi_desc_clone(curr->descriptor);
+			vidtv_psi_desc_assign(&tail->descriptor, desc);
+
+			if (!head)
+				head = tail;
+
+			curr = curr->next;
+		}
+
+		cur_chnl = cur_chnl->next;
+	}
+
+	return head;
+}
+
+static struct vidtv_psi_table_sdt_service
+*vidtv_channel_sdt_serv_cat_into_new(struct vidtv_mux *m)
+{
+	/* Concatenate the services */
+	const struct vidtv_channel *cur_chnl = m->channels;
+
+	struct vidtv_psi_table_sdt_service *curr = NULL;
+	struct vidtv_psi_table_sdt_service *head = NULL;
+	struct vidtv_psi_table_sdt_service *tail = NULL;
+
+	struct vidtv_psi_desc *desc = NULL;
+	u16 service_id;
+
+	if (!cur_chnl)
+		return NULL;
+
+	while (cur_chnl) {
+		curr = cur_chnl->service;
+
+		if (!curr)
+			dev_warn_ratelimited(m->dev,
+					     "No services found for channel %s\n",
+					     cur_chnl->name);
+
+		while (curr) {
+			service_id = be16_to_cpu(curr->service_id);
+			tail = vidtv_psi_sdt_service_init(tail,
+							  service_id,
+							  curr->EIT_schedule,
+							  curr->EIT_present_following);
+			if (!tail)
+				goto free;
+
+			desc = vidtv_psi_desc_clone(curr->descriptor);
+			if (!desc)
+				goto free_tail;
+			vidtv_psi_desc_assign(&tail->descriptor, desc);
+
+			if (!head)
+				head = tail;
+
+			curr = curr->next;
+		}
+
+		cur_chnl = cur_chnl->next;
+	}
+
+	return head;
+
+free_tail:
+	vidtv_psi_sdt_service_destroy(tail);
+free:
+	vidtv_psi_sdt_service_destroy(head);
+	return NULL;
+}
+
+static struct vidtv_psi_table_pat_program*
+vidtv_channel_pat_prog_cat_into_new(struct vidtv_mux *m)
+{
+	/* Concatenate the programs */
+	const struct vidtv_channel *cur_chnl = m->channels;
+	struct vidtv_psi_table_pat_program *curr = NULL;
+	struct vidtv_psi_table_pat_program *head = NULL;
+	struct vidtv_psi_table_pat_program *tail = NULL;
+	u16 serv_id;
+	u16 pid;
+
+	if (!cur_chnl)
+		return NULL;
+
+	while (cur_chnl) {
+		curr = cur_chnl->program;
+
+		if (!curr)
+			dev_warn_ratelimited(m->dev,
+					     "No programs found for channel %s\n",
+					     cur_chnl->name);
+
+		while (curr) {
+			serv_id = be16_to_cpu(curr->service_id);
+			pid = vidtv_psi_get_pat_program_pid(curr);
+			tail = vidtv_psi_pat_program_init(tail,
+							  serv_id,
+							  pid);
+			if (!tail) {
+				vidtv_psi_pat_program_destroy(head);
+				return NULL;
+			}
+
+			if (!head)
+				head = tail;
+
+			curr = curr->next;
+		}
+
+		cur_chnl = cur_chnl->next;
+	}
+	/* Add the NIT table */
+	vidtv_psi_pat_program_init(tail, 0, TS_NIT_PID);
+
+	return head;
+}
+
+/*
+ * Match channels to their respective PMT sections, then assign the
+ * streams
+ */
+static void
+vidtv_channel_pmt_match_sections(struct vidtv_channel *channels,
+				 struct vidtv_psi_table_pmt **sections,
+				 u32 nsections)
+{
+	struct vidtv_psi_table_pmt *curr_section = NULL;
+	struct vidtv_psi_table_pmt_stream *head = NULL;
+	struct vidtv_psi_table_pmt_stream *tail = NULL;
+	struct vidtv_psi_table_pmt_stream *s = NULL;
+	struct vidtv_channel *cur_chnl = channels;
+	struct vidtv_psi_desc *desc = NULL;
+	u16 e_pid; /* elementary stream pid */
+	u16 curr_id;
+	u32 j;
+
+	while (cur_chnl) {
+		for (j = 0; j < nsections; ++j) {
+			curr_section = sections[j];
+
+			if (!curr_section)
+				continue;
+
+			curr_id = be16_to_cpu(curr_section->header.id);
+
+			/* we got a match */
+			if (curr_id == cur_chnl->program_num) {
+				s = cur_chnl->streams;
+
+				/* clone the streams for the PMT */
+				while (s) {
+					e_pid = vidtv_psi_pmt_stream_get_elem_pid(s);
+					tail = vidtv_psi_pmt_stream_init(tail,
+									 s->type,
+									 e_pid);
+					if (!tail) {
+						vidtv_psi_pmt_stream_destroy(head);
+						return;
+					}
+
+					if (!head)
+						head = tail;
+
+					desc = vidtv_psi_desc_clone(s->descriptor);
+					vidtv_psi_desc_assign(&tail->descriptor,
+							      desc);
+
+					s = s->next;
+				}
+
+				vidtv_psi_pmt_stream_assign(curr_section, head);
+				break;
+			}
+		}
+
+		cur_chnl = cur_chnl->next;
+	}
+}
+
+static void
+vidtv_channel_destroy_service_list(struct vidtv_psi_desc_service_list_entry *e)
+{
+	struct vidtv_psi_desc_service_list_entry *tmp;
+
+	while (e) {
+		tmp = e;
+		e = e->next;
+		kfree(tmp);
+	}
+}
+
+static struct vidtv_psi_desc_service_list_entry
+*vidtv_channel_build_service_list(struct vidtv_psi_table_sdt_service *s)
+{
+	struct vidtv_psi_desc_service_list_entry *curr_e = NULL;
+	struct vidtv_psi_desc_service_list_entry *head_e = NULL;
+	struct vidtv_psi_desc_service_list_entry *prev_e = NULL;
+	struct vidtv_psi_desc *desc = s->descriptor;
+	struct vidtv_psi_desc_service *s_desc;
+
+	while (s) {
+		while (desc) {
+			if (s->descriptor->type != SERVICE_DESCRIPTOR)
+				goto next_desc;
+
+			s_desc = (struct vidtv_psi_desc_service *)desc;
+
+			curr_e = kzalloc_obj(*curr_e);
+			if (!curr_e) {
+				vidtv_channel_destroy_service_list(head_e);
+				return NULL;
+			}
+
+			curr_e->service_id = s->service_id;
+			curr_e->service_type = s_desc->service_type;
+
+			if (!head_e)
+				head_e = curr_e;
+			if (prev_e)
+				prev_e->next = curr_e;
+
+			prev_e = curr_e;
+
+next_desc:
+			desc = desc->next;
+		}
+		s = s->next;
+	}
+	return head_e;
+}
+
+int vidtv_channel_si_init(struct vidtv_mux *m)
+{
+	struct vidtv_psi_desc_service_list_entry *service_list = NULL;
+	struct vidtv_psi_table_pat_program *programs = NULL;
+	struct vidtv_psi_table_sdt_service *services = NULL;
+	struct vidtv_psi_table_eit_event *events = NULL;
+
+	m->si.pat = vidtv_psi_pat_table_init(m->transport_stream_id);
+	if (!m->si.pat)
+		return -ENOMEM;
+
+	m->si.sdt = vidtv_psi_sdt_table_init(m->network_id,
+					     m->transport_stream_id);
+	if (!m->si.sdt)
+		goto free_pat;
+
+	programs = vidtv_channel_pat_prog_cat_into_new(m);
+	if (!programs)
+		goto free_sdt;
+	services = vidtv_channel_sdt_serv_cat_into_new(m);
+	if (!services)
+		goto free_programs;
+
+	events = vidtv_channel_eit_event_cat_into_new(m);
+	if (!events)
+		goto free_services;
+
+	/* look for a service descriptor for every service */
+	service_list = vidtv_channel_build_service_list(services);
+	if (!service_list)
+		goto free_events;
+
+	/* use these descriptors to build the NIT */
+	m->si.nit = vidtv_psi_nit_table_init(m->network_id,
+					     m->transport_stream_id,
+					     m->network_name,
+					     service_list);
+	if (!m->si.nit)
+		goto free_service_list;
+
+	m->si.eit = vidtv_psi_eit_table_init(m->network_id,
+					     m->transport_stream_id,
+					     programs->service_id);
+	if (!m->si.eit)
+		goto free_nit;
+
+	/* assemble all programs and assign to PAT */
+	vidtv_psi_pat_program_assign(m->si.pat, programs);
+	programs = NULL;
+
+	/* assemble all services and assign to SDT */
+	vidtv_psi_sdt_service_assign(m->si.sdt, services);
+	services = NULL;
+
+	/* assemble all events and assign to EIT */
+	vidtv_psi_eit_event_assign(m->si.eit, events);
+	events = NULL;
+
+	m->si.pmt_secs = vidtv_psi_pmt_create_sec_for_each_pat_entry(m->si.pat,
+								     m->pcr_pid);
+	if (!m->si.pmt_secs)
+		goto free_eit;
+
+	vidtv_channel_pmt_match_sections(m->channels,
+					 m->si.pmt_secs,
+					 m->si.pat->num_pmt);
+
+	vidtv_channel_destroy_service_list(service_list);
+
+	return 0;
+
+free_eit:
+	vidtv_psi_eit_table_destroy(m->si.eit);
+free_nit:
+	vidtv_psi_nit_table_destroy(m->si.nit);
+free_service_list:
+	vidtv_channel_destroy_service_list(service_list);
+free_events:
+	vidtv_psi_eit_event_destroy(events);
+free_services:
+	vidtv_psi_sdt_service_destroy(services);
+free_programs:
+	vidtv_psi_pat_program_destroy(programs);
+free_sdt:
+	vidtv_psi_sdt_table_destroy(m->si.sdt);
+free_pat:
+	vidtv_psi_pat_table_destroy(m->si.pat);
+	return -EINVAL;
+}
+
+void vidtv_channel_si_destroy(struct vidtv_mux *m)
+{
+	u32 i;
+
+	for (i = 0; i < m->si.pat->num_pmt; ++i)
+		vidtv_psi_pmt_table_destroy(m->si.pmt_secs[i]);
+
+	vidtv_psi_pat_table_destroy(m->si.pat);
+
+	kfree(m->si.pmt_secs);
+	vidtv_psi_sdt_table_destroy(m->si.sdt);
+	vidtv_psi_nit_table_destroy(m->si.nit);
+	vidtv_psi_eit_table_destroy(m->si.eit);
+}
+
+int vidtv_channels_init(struct vidtv_mux *m)
+{
+	/* this is the place to add new 'channels' for vidtv */
+	m->channels = vidtv_channel_s302m_init(NULL, m->transport_stream_id);
+
+	if (!m->channels)
+		return -ENOMEM;
+
+	return 0;
+}
+
+void vidtv_channels_destroy(struct vidtv_mux *m)
+{
+	struct vidtv_channel *curr = m->channels;
+	struct vidtv_channel *tmp = NULL;
+
+	while (curr) {
+		kfree(curr->name);
+		vidtv_psi_sdt_service_destroy(curr->service);
+		vidtv_psi_pat_program_destroy(curr->program);
+		vidtv_psi_pmt_stream_destroy(curr->streams);
+		vidtv_channel_encoder_destroy(curr->encoders);
+		vidtv_psi_eit_event_destroy(curr->events);
+
+		tmp = curr;
+		curr = curr->next;
+		kfree(tmp);
+	}
+}
diff --git a/drivers/media/test-drivers/vidtv/vidtv_channel.h b/drivers/media/test-drivers/vidtv/vidtv_channel.h
new file mode 100644
index 000000000..fff2e501d
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_channel.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Vidtv serves as a reference DVB driver and helps validate the existing APIs
+ * in the media subsystem. It can also aid developers working on userspace
+ * applications.
+ *
+ * This file contains the code for a 'channel' abstraction.
+ *
+ * When vidtv boots, it will create some hardcoded channels.
+ * Their services will be concatenated to populate the SDT.
+ * Their programs will be concatenated to populate the PAT
+ * Their events will be concatenated to populate the EIT
+ * For each program in the PAT, a PMT section will be created
+ * The PMT section for a channel will be assigned its streams.
+ * Every stream will have its corresponding encoder polled to produce TS packets
+ * These packets may be interleaved by the mux and then delivered to the bridge
+ *
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#ifndef VIDTV_CHANNEL_H
+#define VIDTV_CHANNEL_H
+
+#include <linux/types.h>
+
+#include "vidtv_encoder.h"
+#include "vidtv_mux.h"
+#include "vidtv_psi.h"
+
+/**
+ * struct vidtv_channel - A 'channel' abstraction
+ *
+ * When vidtv boots, it will create some hardcoded channels.
+ * Their services will be concatenated to populate the SDT.
+ * Their programs will be concatenated to populate the PAT
+ * For each program in the PAT, a PMT section will be created
+ * The PMT section for a channel will be assigned its streams.
+ * Every stream will have its corresponding encoder polled to produce TS packets
+ * These packets may be interleaved by the mux and then delivered to the bridge
+ *
+ * @name: name of the channel
+ * @transport_stream_id: a number to identify the TS, chosen at will.
+ * @service: A _single_ service. Will be concatenated into the SDT.
+ * @program_num: The link between PAT, PMT and SDT.
+ * @program: A _single_ program with one or more streams associated with it.
+ * Will be concatenated into the PAT.
+ * @streams: A stream loop used to populate the PMT section for 'program'
+ * @encoders: A encoder loop. There must be one encoder for each stream.
+ * @events: Optional event information. This will feed into the EIT.
+ * @next: Optionally chain this channel.
+ */
+struct vidtv_channel {
+	char *name;
+	u16 transport_stream_id;
+	struct vidtv_psi_table_sdt_service *service;
+	u16 program_num;
+	struct vidtv_psi_table_pat_program *program;
+	struct vidtv_psi_table_pmt_stream *streams;
+	struct vidtv_encoder *encoders;
+	struct vidtv_psi_table_eit_event *events;
+	struct vidtv_channel *next;
+};
+
+/**
+ * vidtv_channel_si_init - Init the PSI tables from the channels in the mux
+ * @m: The mux containing the channels.
+ */
+int vidtv_channel_si_init(struct vidtv_mux *m);
+void vidtv_channel_si_destroy(struct vidtv_mux *m);
+
+/**
+ * vidtv_channels_init - Init hardcoded, fake 'channels'.
+ * @m: The mux to store the channels into.
+ */
+int vidtv_channels_init(struct vidtv_mux *m);
+struct vidtv_channel
+*vidtv_channel_s302m_init(struct vidtv_channel *head, u16 transport_stream_id);
+void vidtv_channels_destroy(struct vidtv_mux *m);
+
+#endif //VIDTV_CHANNEL_H
diff --git a/drivers/media/test-drivers/vidtv/vidtv_common.c b/drivers/media/test-drivers/vidtv/vidtv_common.c
new file mode 100644
index 000000000..63b3055bd
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_common.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * The Virtual DVB test driver serves as a reference DVB driver and helps
+ * validate the existing APIs in the media subsystem. It can also aid
+ * developers working on userspace applications.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__
+
+#include <linux/printk.h>
+#include <linux/ratelimit.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include "vidtv_common.h"
+
+/**
+ * vidtv_memcpy() - wrapper routine to be used by MPEG-TS
+ *	generator, in order to avoid going past the
+ *	output buffer.
+ * @to:	Starting element to where a MPEG-TS packet will
+ *	be copied.
+ * @to_offset:	Starting position of the @to buffer to be filled.
+ * @to_size:	Size of the @to buffer.
+ * @from:	Starting element of the buffer to be copied.
+ * @len:	Number of elements to be copy from @from buffer
+ *	into @to+ @to_offset buffer.
+ *
+ * Note:
+ *	Real digital TV demod drivers should not have memcpy
+ *	wrappers. We use it here because emulating MPEG-TS
+ *	generation at kernelspace requires some extra care.
+ *
+ * Return:
+ *	Returns the number of bytes written
+ */
+u32 vidtv_memcpy(void *to,
+		 size_t to_offset,
+		 size_t to_size,
+		 const void *from,
+		 size_t len)
+{
+	if (unlikely(to_offset + len > to_size)) {
+		pr_err_ratelimited("overflow detected, skipping. Try increasing the buffer size. Needed %zu, had %zu\n",
+				   to_offset + len,
+				   to_size);
+		return 0;
+	}
+
+	memcpy(to + to_offset, from, len);
+	return len;
+}
+
+/**
+ * vidtv_memset() - wrapper routine to be used by MPEG-TS
+ *	generator, in order to avoid going past the
+ *	output buffer.
+ * @to:	Starting element to set
+ * @to_offset:	Starting position of the @to buffer to be filled.
+ * @to_size:	Size of the @to buffer.
+ * @c:		The value to set the memory to.
+ * @len:	Number of elements to be copy from @from buffer
+ *	into @to+ @to_offset buffer.
+ *
+ * Note:
+ *	Real digital TV demod drivers should not have memset
+ *	wrappers. We use it here because emulating MPEG-TS
+ *	generation at kernelspace requires some extra care.
+ *
+ * Return:
+ *	Returns the number of bytes written
+ */
+u32 vidtv_memset(void *to,
+		 size_t to_offset,
+		 size_t to_size,
+		 const int c,
+		 size_t len)
+{
+	if (unlikely(to_offset + len > to_size)) {
+		pr_err_ratelimited("overflow detected, skipping. Try increasing the buffer size. Needed %zu, had %zu\n",
+				   to_offset + len,
+				   to_size);
+		return 0;
+	}
+
+	memset(to + to_offset, c, len);
+	return len;
+}
diff --git a/drivers/media/test-drivers/vidtv/vidtv_common.h b/drivers/media/test-drivers/vidtv/vidtv_common.h
new file mode 100644
index 000000000..42f63fdee
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_common.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * The Virtual DVB test driver serves as a reference DVB driver and helps
+ * validate the existing APIs in the media subsystem. It can also aid
+ * developers working on userspace applications.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#ifndef VIDTV_COMMON_H
+#define VIDTV_COMMON_H
+
+#include <linux/types.h>
+
+#define CLOCK_UNIT_90KHZ 90000
+#define CLOCK_UNIT_27MHZ 27000000
+#define VIDTV_SLEEP_USECS 10000
+#define VIDTV_MAX_SLEEP_USECS (2 * VIDTV_SLEEP_USECS)
+
+u32 vidtv_memcpy(void *to,
+		 size_t to_offset,
+		 size_t to_size,
+		 const void *from,
+		 size_t len);
+
+u32 vidtv_memset(void *to,
+		 size_t to_offset,
+		 size_t to_size,
+		 int c,
+		 size_t len);
+
+#endif // VIDTV_COMMON_H
diff --git a/drivers/media/test-drivers/vidtv/vidtv_demod.c b/drivers/media/test-drivers/vidtv/vidtv_demod.c
new file mode 100644
index 000000000..6e5fe4029
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_demod.c
@@ -0,0 +1,461 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * The Virtual DVB test driver serves as a reference DVB driver and helps
+ * validate the existing APIs in the media subsystem. It can also aid
+ * developers working on userspace applications.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ * Based on the example driver written by Emard <emard@softhome.net>
+ */
+
+#include <linux/errno.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/random.h>
+#include <linux/ratelimit.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/workqueue.h>
+
+#include <media/dvb_frontend.h>
+
+#include "vidtv_demod.h"
+
+#define POLL_THRD_TIME 2000 /* ms */
+
+static const struct vidtv_demod_cnr_to_qual_s vidtv_demod_c_cnr_2_qual[] = {
+	/* from libdvbv5 source code, in milli db */
+	{ QAM_256, FEC_NONE,  34000, 38000},
+	{ QAM_64,  FEC_NONE,  30000, 34000},
+};
+
+static const struct vidtv_demod_cnr_to_qual_s vidtv_demod_s_cnr_2_qual[] = {
+	/* from libdvbv5 source code, in milli db */
+	{ QPSK, FEC_1_2,  7000, 10000},
+	{ QPSK, FEC_2_3,  9000, 12000},
+	{ QPSK, FEC_3_4, 10000, 13000},
+	{ QPSK, FEC_5_6, 11000, 14000},
+	{ QPSK, FEC_7_8, 12000, 15000},
+};
+
+static const struct vidtv_demod_cnr_to_qual_s vidtv_demod_s2_cnr_2_qual[] = {
+	/* from libdvbv5 source code, in milli db */
+	{ QPSK,  FEC_1_2,   9000,  12000},
+	{ QPSK,  FEC_2_3,  11000,  14000},
+	{ QPSK,  FEC_3_4,  12000,  15000},
+	{ QPSK,  FEC_5_6,  12000,  15000},
+	{ QPSK,  FEC_8_9,  13000,  16000},
+	{ QPSK,  FEC_9_10, 13500,  16500},
+	{ PSK_8, FEC_2_3,  14500,  17500},
+	{ PSK_8, FEC_3_4,  16000,  19000},
+	{ PSK_8, FEC_5_6,  17500,  20500},
+	{ PSK_8, FEC_8_9,  19000,  22000},
+};
+
+static const struct vidtv_demod_cnr_to_qual_s vidtv_demod_t_cnr_2_qual[] = {
+	/* from libdvbv5 source code, in milli db*/
+	{   QPSK, FEC_1_2,  4100,  5900},
+	{   QPSK, FEC_2_3,  6100,  9600},
+	{   QPSK, FEC_3_4,  7200, 12400},
+	{   QPSK, FEC_5_6,  8500, 15600},
+	{   QPSK, FEC_7_8,  9200, 17500},
+	{ QAM_16, FEC_1_2,  9800, 11800},
+	{ QAM_16, FEC_2_3, 12100, 15300},
+	{ QAM_16, FEC_3_4, 13400, 18100},
+	{ QAM_16, FEC_5_6, 14800, 21300},
+	{ QAM_16, FEC_7_8, 15700, 23600},
+	{ QAM_64, FEC_1_2, 14000, 16000},
+	{ QAM_64, FEC_2_3, 19900, 25400},
+	{ QAM_64, FEC_3_4, 24900, 27900},
+	{ QAM_64, FEC_5_6, 21300, 23300},
+	{ QAM_64, FEC_7_8, 22000, 24000},
+};
+
+static const struct vidtv_demod_cnr_to_qual_s *vidtv_match_cnr_s(struct dvb_frontend *fe)
+{
+	const struct vidtv_demod_cnr_to_qual_s *cnr2qual = NULL;
+	struct device *dev = fe->dvb->device;
+	struct dtv_frontend_properties *c;
+	u32 array_size = 0;
+	u32 i;
+
+	c = &fe->dtv_property_cache;
+
+	switch (c->delivery_system) {
+	case SYS_DVBT:
+	case SYS_DVBT2:
+		cnr2qual   = vidtv_demod_t_cnr_2_qual;
+		array_size = ARRAY_SIZE(vidtv_demod_t_cnr_2_qual);
+		break;
+
+	case SYS_DVBS:
+		cnr2qual   = vidtv_demod_s_cnr_2_qual;
+		array_size = ARRAY_SIZE(vidtv_demod_s_cnr_2_qual);
+		break;
+
+	case SYS_DVBS2:
+		cnr2qual   = vidtv_demod_s2_cnr_2_qual;
+		array_size = ARRAY_SIZE(vidtv_demod_s2_cnr_2_qual);
+		break;
+
+	case SYS_DVBC_ANNEX_A:
+		cnr2qual   = vidtv_demod_c_cnr_2_qual;
+		array_size = ARRAY_SIZE(vidtv_demod_c_cnr_2_qual);
+		break;
+
+	default:
+		dev_warn_ratelimited(dev,
+				     "%s: unsupported delivery system: %u\n",
+				     __func__,
+				     c->delivery_system);
+		break;
+	}
+
+	for (i = 0; i < array_size; i++)
+		if (cnr2qual[i].modulation == c->modulation &&
+		    cnr2qual[i].fec == c->fec_inner)
+			return &cnr2qual[i];
+
+	return NULL; /* not found */
+}
+
+static void vidtv_clean_stats(struct dvb_frontend *fe)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+
+	/* Fill the length of each status counter */
+
+	/* Signal is always available */
+	c->strength.len = 1;
+	c->strength.stat[0].scale = FE_SCALE_DECIBEL;
+	c->strength.stat[0].svalue = 0;
+
+	/* Usually available only after Viterbi lock */
+	c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	c->cnr.stat[0].svalue = 0;
+	c->cnr.len = 1;
+
+	/* Those depends on full lock */
+	c->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	c->pre_bit_error.stat[0].uvalue = 0;
+	c->pre_bit_error.len = 1;
+	c->pre_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	c->pre_bit_count.stat[0].uvalue = 0;
+	c->pre_bit_count.len = 1;
+	c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	c->post_bit_error.stat[0].uvalue = 0;
+	c->post_bit_error.len = 1;
+	c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	c->post_bit_count.stat[0].uvalue = 0;
+	c->post_bit_count.len = 1;
+	c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	c->block_error.stat[0].uvalue = 0;
+	c->block_error.len = 1;
+	c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	c->block_count.stat[0].uvalue = 0;
+	c->block_count.len = 1;
+}
+
+static void vidtv_demod_update_stats(struct dvb_frontend *fe)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct vidtv_demod_state *state = fe->demodulator_priv;
+	u32 scale;
+
+	if (state->status & FE_HAS_LOCK) {
+		scale = FE_SCALE_COUNTER;
+		c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
+	} else {
+		scale = FE_SCALE_NOT_AVAILABLE;
+		c->cnr.stat[0].scale = scale;
+	}
+
+	c->pre_bit_error.stat[0].scale = scale;
+	c->pre_bit_count.stat[0].scale = scale;
+	c->post_bit_error.stat[0].scale = scale;
+	c->post_bit_count.stat[0].scale = scale;
+	c->block_error.stat[0].scale = scale;
+	c->block_count.stat[0].scale = scale;
+
+	/*
+	 * Add a 0.5% of randomness at the signal strength and CNR,
+	 * and make them different, as we want to have something closer
+	 * to a real case scenario.
+	 *
+	 * Also, usually, signal strength is a negative number in dBm.
+	 */
+	c->strength.stat[0].svalue = state->tuner_cnr;
+	c->strength.stat[0].svalue -= get_random_u32_below(state->tuner_cnr / 50);
+	c->strength.stat[0].svalue -= 68000; /* Adjust to a better range */
+
+	c->cnr.stat[0].svalue = state->tuner_cnr;
+	c->cnr.stat[0].svalue -= get_random_u32_below(state->tuner_cnr / 50);
+}
+
+static int vidtv_demod_read_status(struct dvb_frontend *fe,
+				   enum fe_status *status)
+{
+	struct vidtv_demod_state *state = fe->demodulator_priv;
+	const struct vidtv_demod_cnr_to_qual_s *cnr2qual = NULL;
+	struct vidtv_demod_config *config = &state->config;
+	u16 snr = 0;
+
+	/* Simulate random lost of signal due to a bad-tuned channel */
+	cnr2qual = vidtv_match_cnr_s(&state->frontend);
+
+	if (cnr2qual && state->tuner_cnr < cnr2qual->cnr_good &&
+	    state->frontend.ops.tuner_ops.get_rf_strength) {
+		state->frontend.ops.tuner_ops.get_rf_strength(&state->frontend,
+							      &snr);
+
+		if (snr < cnr2qual->cnr_ok) {
+			/* eventually lose the TS lock */
+			if (get_random_u32_below(100) < config->drop_tslock_prob_on_low_snr)
+				state->status = 0;
+		} else {
+			/* recover if the signal improves */
+			if (get_random_u32_below(100) <
+			    config->recover_tslock_prob_on_good_snr)
+				state->status = FE_HAS_SIGNAL  |
+						FE_HAS_CARRIER |
+						FE_HAS_VITERBI |
+						FE_HAS_SYNC    |
+						FE_HAS_LOCK;
+		}
+	}
+
+	vidtv_demod_update_stats(&state->frontend);
+
+	*status = state->status;
+
+	return 0;
+}
+
+static int vidtv_demod_read_signal_strength(struct dvb_frontend *fe,
+					    u16 *strength)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+
+	*strength = c->strength.stat[0].uvalue;
+
+	return 0;
+}
+
+/*
+ * NOTE:
+ * This is implemented here just to be used as an example for real
+ * demod drivers.
+ *
+ * Should only be implemented if it actually reads something from the hardware.
+ * Also, it should check for the locks, in order to avoid report wrong data
+ * to userspace.
+ */
+static int vidtv_demod_get_frontend(struct dvb_frontend *fe,
+				    struct dtv_frontend_properties *p)
+{
+	return 0;
+}
+
+static int vidtv_demod_set_frontend(struct dvb_frontend *fe)
+{
+	struct vidtv_demod_state *state = fe->demodulator_priv;
+	u32 tuner_status = 0;
+	int ret;
+
+	if (!fe->ops.tuner_ops.set_params)
+		return 0;
+
+	fe->ops.tuner_ops.set_params(fe);
+
+	/* store the CNR returned by the tuner */
+	ret = fe->ops.tuner_ops.get_rf_strength(fe, &state->tuner_cnr);
+	if (ret < 0)
+		return ret;
+
+	fe->ops.tuner_ops.get_status(fe, &tuner_status);
+	state->status = (state->tuner_cnr > 0) ?  FE_HAS_SIGNAL  |
+						    FE_HAS_CARRIER |
+						    FE_HAS_VITERBI |
+						    FE_HAS_SYNC    |
+						    FE_HAS_LOCK	 :
+						    0;
+
+	vidtv_demod_update_stats(fe);
+
+	if (fe->ops.i2c_gate_ctrl)
+		fe->ops.i2c_gate_ctrl(fe, 0);
+
+	return 0;
+}
+
+/*
+ * NOTE:
+ * This is implemented here just to be used as an example for real
+ * demod drivers.
+ *
+ * Should only be implemented if the demod has support for DVB-S or DVB-S2
+ */
+static int vidtv_demod_set_tone(struct dvb_frontend *fe,
+				enum fe_sec_tone_mode tone)
+{
+	return 0;
+}
+
+/*
+ * NOTE:
+ * This is implemented here just to be used as an example for real
+ * demod drivers.
+ *
+ * Should only be implemented if the demod has support for DVB-S or DVB-S2
+ */
+static int vidtv_demod_set_voltage(struct dvb_frontend *fe,
+				   enum fe_sec_voltage voltage)
+{
+	return 0;
+}
+
+/*
+ * NOTE:
+ * This is implemented here just to be used as an example for real
+ * demod drivers.
+ *
+ * Should only be implemented if the demod has support for DVB-S or DVB-S2
+ */
+static int vidtv_send_diseqc_msg(struct dvb_frontend *fe,
+				 struct dvb_diseqc_master_cmd *cmd)
+{
+	return 0;
+}
+
+/*
+ * NOTE:
+ * This is implemented here just to be used as an example for real
+ * demod drivers.
+ *
+ * Should only be implemented if the demod has support for DVB-S or DVB-S2
+ */
+static int vidtv_diseqc_send_burst(struct dvb_frontend *fe,
+				   enum fe_sec_mini_cmd burst)
+{
+	return 0;
+}
+
+static void vidtv_demod_release(struct dvb_frontend *fe)
+{
+	struct vidtv_demod_state *state = fe->demodulator_priv;
+
+	kfree(state);
+}
+
+static const struct dvb_frontend_ops vidtv_demod_ops = {
+	.delsys = {
+		SYS_DVBT,
+		SYS_DVBT2,
+		SYS_DVBC_ANNEX_A,
+		SYS_DVBS,
+		SYS_DVBS2,
+	},
+
+	.info = {
+		.name                   = "Dummy demod for DVB-T/T2/C/S/S2",
+		.frequency_min_hz       = 51 * MHz,
+		.frequency_max_hz       = 2150 * MHz,
+		.frequency_stepsize_hz  = 62500,
+		.frequency_tolerance_hz = 29500 * kHz,
+		.symbol_rate_min        = 1000000,
+		.symbol_rate_max        = 45000000,
+
+		.caps = FE_CAN_FEC_1_2 |
+			FE_CAN_FEC_2_3 |
+			FE_CAN_FEC_3_4 |
+			FE_CAN_FEC_4_5 |
+			FE_CAN_FEC_5_6 |
+			FE_CAN_FEC_6_7 |
+			FE_CAN_FEC_7_8 |
+			FE_CAN_FEC_8_9 |
+			FE_CAN_QAM_16 |
+			FE_CAN_QAM_64 |
+			FE_CAN_QAM_32 |
+			FE_CAN_QAM_128 |
+			FE_CAN_QAM_256 |
+			FE_CAN_QAM_AUTO |
+			FE_CAN_QPSK |
+			FE_CAN_FEC_AUTO |
+			FE_CAN_INVERSION_AUTO |
+			FE_CAN_TRANSMISSION_MODE_AUTO |
+			FE_CAN_GUARD_INTERVAL_AUTO |
+			FE_CAN_HIERARCHY_AUTO,
+	},
+
+	.release = vidtv_demod_release,
+
+	.set_frontend = vidtv_demod_set_frontend,
+	.get_frontend = vidtv_demod_get_frontend,
+
+	.read_status          = vidtv_demod_read_status,
+	.read_signal_strength = vidtv_demod_read_signal_strength,
+
+	/* For DVB-S/S2 */
+	.set_voltage		= vidtv_demod_set_voltage,
+	.set_tone		= vidtv_demod_set_tone,
+	.diseqc_send_master_cmd	= vidtv_send_diseqc_msg,
+	.diseqc_send_burst	= vidtv_diseqc_send_burst,
+
+};
+
+static const struct i2c_device_id vidtv_demod_i2c_id_table[] = {
+	{ .name = "dvb_vidtv_demod" },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, vidtv_demod_i2c_id_table);
+
+static int vidtv_demod_i2c_probe(struct i2c_client *client)
+{
+	struct vidtv_tuner_config *config = client->dev.platform_data;
+	struct vidtv_demod_state *state;
+
+	/* allocate memory for the internal state */
+	state = kzalloc_obj(*state);
+	if (!state)
+		return -ENOMEM;
+
+	/* create dvb_frontend */
+	memcpy(&state->frontend.ops,
+	       &vidtv_demod_ops,
+	       sizeof(struct dvb_frontend_ops));
+
+	memcpy(&state->config, config, sizeof(state->config));
+
+	state->frontend.demodulator_priv = state;
+	i2c_set_clientdata(client, state);
+
+	vidtv_clean_stats(&state->frontend);
+
+	return 0;
+}
+
+static void vidtv_demod_i2c_remove(struct i2c_client *client)
+{
+	struct vidtv_demod_state *state = i2c_get_clientdata(client);
+
+	kfree(state);
+}
+
+static struct i2c_driver vidtv_demod_i2c_driver = {
+	.driver = {
+		.name                = "dvb_vidtv_demod",
+		.suppress_bind_attrs = true,
+	},
+	.probe    = vidtv_demod_i2c_probe,
+	.remove   = vidtv_demod_i2c_remove,
+	.id_table = vidtv_demod_i2c_id_table,
+};
+
+module_i2c_driver(vidtv_demod_i2c_driver);
+
+MODULE_DESCRIPTION("Virtual DVB Demodulator Driver");
+MODULE_AUTHOR("Daniel W. S. Almeida");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/test-drivers/vidtv/vidtv_demod.h b/drivers/media/test-drivers/vidtv/vidtv_demod.h
new file mode 100644
index 000000000..2b8404661
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_demod.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * The Virtual DTV test driver serves as a reference DVB driver and helps
+ * validate the existing APIs in the media subsystem. It can also aid
+ * developers working on userspace applications.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ * Based on the example driver written by Emard <emard@softhome.net>
+ */
+
+#ifndef VIDTV_DEMOD_H
+#define VIDTV_DEMOD_H
+
+#include <linux/dvb/frontend.h>
+
+#include <media/dvb_frontend.h>
+
+/**
+ * struct vidtv_demod_cnr_to_qual_s - Map CNR values to a given combination of
+ * modulation and fec_inner
+ * @modulation: see enum fe_modulation
+ * @fec: see enum fe_fec_rate
+ * @cnr_ok: S/N threshold to consider the signal as OK. Below that, there's
+ *          a chance of losing sync.
+ * @cnr_good: S/N threshold to consider the signal strong.
+ *
+ * This struct matches values for 'good' and 'ok' CNRs given the combination
+ * of modulation and fec_inner in use. We might simulate some noise if the
+ * signal quality is not too good.
+ *
+ * The values were taken from libdvbv5.
+ */
+struct vidtv_demod_cnr_to_qual_s {
+	u32 modulation;
+	u32 fec;
+	u32 cnr_ok;
+	u32 cnr_good;
+};
+
+/**
+ * struct vidtv_demod_config - Configuration used to init the demod
+ * @drop_tslock_prob_on_low_snr: probability of losing the lock due to low snr
+ * @recover_tslock_prob_on_good_snr: probability of recovering when the signal
+ * improves
+ *
+ * The configuration used to init the demodulator module, usually filled
+ * by a bridge driver. For vidtv, this is filled by vidtv_bridge before the
+ * demodulator module is probed.
+ */
+struct vidtv_demod_config {
+	u8 drop_tslock_prob_on_low_snr;
+	u8 recover_tslock_prob_on_good_snr;
+};
+
+/**
+ * struct vidtv_demod_state - The demodulator state
+ * @frontend: The frontend structure allocated by the demod.
+ * @config: The config used to init the demod.
+ * @status: the demod status.
+ * @tuner_cnr: current S/N ratio for the signal carrier
+ */
+struct vidtv_demod_state {
+	struct dvb_frontend frontend;
+	struct vidtv_demod_config config;
+	enum fe_status status;
+	u16 tuner_cnr;
+};
+#endif // VIDTV_DEMOD_H
diff --git a/drivers/media/test-drivers/vidtv/vidtv_encoder.h b/drivers/media/test-drivers/vidtv/vidtv_encoder.h
new file mode 100644
index 000000000..50e3cf4eb
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_encoder.h
@@ -0,0 +1,165 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Vidtv serves as a reference DVB driver and helps validate the existing APIs
+ * in the media subsystem. It can also aid developers working on userspace
+ * applications.
+ *
+ * This file contains a generic encoder type that can provide data for a stream
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#ifndef VIDTV_ENCODER_H
+#define VIDTV_ENCODER_H
+
+#include <linux/types.h>
+
+enum vidtv_encoder_id {
+	/* add IDs here when implementing new encoders */
+	S302M,
+};
+
+struct vidtv_access_unit {
+	u32 num_samples;
+	u64 pts;
+	u64 dts;
+	u32 nbytes;
+	u32 offset;
+	struct vidtv_access_unit *next;
+};
+
+/* Some musical notes, used by a tone generator. Values are in Hz */
+enum musical_notes {
+	NOTE_SILENT = 0,
+
+	NOTE_C_2 = 65,
+	NOTE_CS_2 = 69,
+	NOTE_D_2 = 73,
+	NOTE_DS_2 = 78,
+	NOTE_E_2 = 82,
+	NOTE_F_2 = 87,
+	NOTE_FS_2 = 93,
+	NOTE_G_2 = 98,
+	NOTE_GS_2 = 104,
+	NOTE_A_2 = 110,
+	NOTE_AS_2 = 117,
+	NOTE_B_2 = 123,
+	NOTE_C_3 = 131,
+	NOTE_CS_3 = 139,
+	NOTE_D_3 = 147,
+	NOTE_DS_3 = 156,
+	NOTE_E_3 = 165,
+	NOTE_F_3 = 175,
+	NOTE_FS_3 = 185,
+	NOTE_G_3 = 196,
+	NOTE_GS_3 = 208,
+	NOTE_A_3 = 220,
+	NOTE_AS_3 = 233,
+	NOTE_B_3 = 247,
+	NOTE_C_4 = 262,
+	NOTE_CS_4 = 277,
+	NOTE_D_4 = 294,
+	NOTE_DS_4 = 311,
+	NOTE_E_4 = 330,
+	NOTE_F_4 = 349,
+	NOTE_FS_4 = 370,
+	NOTE_G_4 = 392,
+	NOTE_GS_4 = 415,
+	NOTE_A_4 = 440,
+	NOTE_AS_4 = 466,
+	NOTE_B_4 = 494,
+	NOTE_C_5 = 523,
+	NOTE_CS_5 = 554,
+	NOTE_D_5 = 587,
+	NOTE_DS_5 = 622,
+	NOTE_E_5 = 659,
+	NOTE_F_5 = 698,
+	NOTE_FS_5 = 740,
+	NOTE_G_5 = 784,
+	NOTE_GS_5 = 831,
+	NOTE_A_5 = 880,
+	NOTE_AS_5 = 932,
+	NOTE_B_5 = 988,
+	NOTE_C_6 = 1047,
+	NOTE_CS_6 = 1109,
+	NOTE_D_6 = 1175,
+	NOTE_DS_6 = 1245,
+	NOTE_E_6 = 1319,
+	NOTE_F_6 = 1397,
+	NOTE_FS_6 = 1480,
+	NOTE_G_6 = 1568,
+	NOTE_GS_6 = 1661,
+	NOTE_A_6 = 1760,
+	NOTE_AS_6 = 1865,
+	NOTE_B_6 = 1976,
+	NOTE_C_7 = 2093
+};
+
+/**
+ * struct vidtv_encoder - A generic encoder type.
+ * @id: So we can cast to a concrete implementation when needed.
+ * @name: Usually the same as the stream name.
+ * @encoder_buf: The encoder internal buffer for the access units.
+ * @encoder_buf_sz: The encoder buffer size, in bytes
+ * @encoder_buf_offset: Our byte position in the encoder buffer.
+ * @sample_count: How many samples we have encoded in total.
+ * @access_units: encoder payload units, used for clock references
+ * @src_buf: The source of raw data to be encoded, encoder might set a
+ * default if null.
+ * @src_buf_sz: size of @src_buf.
+ * @src_buf_offset: Our position in the source buffer.
+ * @is_video_encoder: Whether this a video encoder (as opposed to audio)
+ * @ctx: Encoder-specific state.
+ * @stream_id: Examples: Audio streams (0xc0-0xdf), Video streams
+ * (0xe0-0xef).
+ * @es_pid: The TS PID to use for the elementary stream in this encoder.
+ * @encode: Prepare enough AUs for the given amount of time.
+ * @clear: Clear the encoder output.
+ * @sync: Attempt to synchronize with this encoder.
+ * @sampling_rate_hz: The sampling rate (or fps, if video) used.
+ * @last_sample_cb: Called when the encoder runs out of data.This is
+ *		    so the source can read data in a
+ *		    piecemeal fashion instead of having to
+ *		    provide it all at once.
+ * @destroy: Destroy this encoder, freeing allocated resources.
+ * @next: Next in the chain
+ */
+struct vidtv_encoder {
+	enum vidtv_encoder_id id;
+	char *name;
+
+	u8 *encoder_buf;
+	u32 encoder_buf_sz;
+	u32 encoder_buf_offset;
+
+	u64 sample_count;
+
+	struct vidtv_access_unit *access_units;
+
+	void *src_buf;
+	u32 src_buf_sz;
+	u32 src_buf_offset;
+
+	bool is_video_encoder;
+	void *ctx;
+
+	__be16 stream_id;
+
+	__be16 es_pid;
+
+	void *(*encode)(struct vidtv_encoder *e);
+
+	u32 (*clear)(struct vidtv_encoder *e);
+
+	struct vidtv_encoder *sync;
+
+	u32 sampling_rate_hz;
+
+	void (*last_sample_cb)(u32 sample_no);
+
+	void (*destroy)(struct vidtv_encoder *e);
+
+	struct vidtv_encoder *next;
+};
+
+#endif /* VIDTV_ENCODER_H */
diff --git a/drivers/media/test-drivers/vidtv/vidtv_mux.c b/drivers/media/test-drivers/vidtv/vidtv_mux.c
new file mode 100644
index 000000000..ea2ea5310
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_mux.c
@@ -0,0 +1,557 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Vidtv serves as a reference DVB driver and helps validate the existing APIs
+ * in the media subsystem. It can also aid developers working on userspace
+ * applications.
+ *
+ * This file contains the multiplexer logic for TS packets from different
+ * elementary streams
+ *
+ * Loosely based on libavcodec/mpegtsenc.c
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#include <linux/delay.h>
+#include <linux/dev_printk.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/math64.h>
+#include <linux/ratelimit.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+
+#include "vidtv_channel.h"
+#include "vidtv_common.h"
+#include "vidtv_encoder.h"
+#include "vidtv_mux.h"
+#include "vidtv_pes.h"
+#include "vidtv_psi.h"
+#include "vidtv_ts.h"
+
+static struct vidtv_mux_pid_ctx
+*vidtv_mux_get_pid_ctx(struct vidtv_mux *m, u16 pid)
+{
+	struct vidtv_mux_pid_ctx *ctx;
+
+	hash_for_each_possible(m->pid_ctx, ctx, h, pid)
+		if (ctx->pid == pid)
+			return ctx;
+	return NULL;
+}
+
+static struct vidtv_mux_pid_ctx
+*vidtv_mux_create_pid_ctx_once(struct vidtv_mux *m, u16 pid)
+{
+	struct vidtv_mux_pid_ctx *ctx;
+
+	ctx = vidtv_mux_get_pid_ctx(m, pid);
+	if (ctx)
+		return ctx;
+
+	ctx = kzalloc_obj(*ctx);
+	if (!ctx)
+		return NULL;
+
+	ctx->pid = pid;
+	ctx->cc  = 0;
+	hash_add(m->pid_ctx, &ctx->h, pid);
+
+	return ctx;
+}
+
+static void vidtv_mux_pid_ctx_destroy(struct vidtv_mux *m)
+{
+	struct vidtv_mux_pid_ctx *ctx;
+	struct hlist_node *tmp;
+	int bkt;
+
+	hash_for_each_safe(m->pid_ctx, bkt, tmp, ctx, h) {
+		hash_del(&ctx->h);
+		kfree(ctx);
+	}
+}
+
+static int vidtv_mux_pid_ctx_init(struct vidtv_mux *m)
+{
+	struct vidtv_psi_table_pat_program *p = m->si.pat->program;
+	u16 pid;
+
+	hash_init(m->pid_ctx);
+	/* push the pcr pid ctx */
+	if (!vidtv_mux_create_pid_ctx_once(m, m->pcr_pid))
+		return -ENOMEM;
+	/* push the NULL packet pid ctx */
+	if (!vidtv_mux_create_pid_ctx_once(m, TS_NULL_PACKET_PID))
+		goto free;
+	/* push the PAT pid ctx */
+	if (!vidtv_mux_create_pid_ctx_once(m, VIDTV_PAT_PID))
+		goto free;
+	/* push the SDT pid ctx */
+	if (!vidtv_mux_create_pid_ctx_once(m, VIDTV_SDT_PID))
+		goto free;
+	/* push the NIT pid ctx */
+	if (!vidtv_mux_create_pid_ctx_once(m, VIDTV_NIT_PID))
+		goto free;
+	/* push the EIT pid ctx */
+	if (!vidtv_mux_create_pid_ctx_once(m, VIDTV_EIT_PID))
+		goto free;
+
+	/* add a ctx for all PMT sections */
+	while (p) {
+		pid = vidtv_psi_get_pat_program_pid(p);
+		if (!vidtv_mux_create_pid_ctx_once(m, pid))
+			goto free;
+		p = p->next;
+	}
+
+	return 0;
+
+free:
+	vidtv_mux_pid_ctx_destroy(m);
+	return -ENOMEM;
+}
+
+static void vidtv_mux_update_clk(struct vidtv_mux *m)
+{
+	/* call this at every thread iteration */
+	u64 elapsed_time;
+
+	m->timing.past_jiffies = m->timing.current_jiffies;
+	m->timing.current_jiffies = get_jiffies_64();
+
+	elapsed_time = jiffies_to_usecs(m->timing.current_jiffies -
+					m->timing.past_jiffies);
+
+	/* update the 27Mhz clock proportionally to the elapsed time */
+	m->timing.clk += (CLOCK_UNIT_27MHZ / USEC_PER_SEC) * elapsed_time;
+}
+
+static u32 vidtv_mux_push_si(struct vidtv_mux *m)
+{
+	struct vidtv_psi_pat_write_args pat_args = {
+		.buf                = m->mux_buf,
+		.buf_sz             = m->mux_buf_sz,
+		.pat                = m->si.pat,
+	};
+	struct vidtv_psi_pmt_write_args pmt_args = {
+		.buf                = m->mux_buf,
+		.buf_sz             = m->mux_buf_sz,
+		.pcr_pid            = m->pcr_pid,
+	};
+	struct vidtv_psi_sdt_write_args sdt_args = {
+		.buf                = m->mux_buf,
+		.buf_sz             = m->mux_buf_sz,
+		.sdt                = m->si.sdt,
+	};
+	struct vidtv_psi_nit_write_args nit_args = {
+		.buf                = m->mux_buf,
+		.buf_sz             = m->mux_buf_sz,
+		.nit                = m->si.nit,
+
+	};
+	struct vidtv_psi_eit_write_args eit_args = {
+		.buf                = m->mux_buf,
+		.buf_sz             = m->mux_buf_sz,
+		.eit                = m->si.eit,
+	};
+	u32 initial_offset = m->mux_buf_offset;
+	struct vidtv_mux_pid_ctx *pat_ctx;
+	struct vidtv_mux_pid_ctx *pmt_ctx;
+	struct vidtv_mux_pid_ctx *sdt_ctx;
+	struct vidtv_mux_pid_ctx *nit_ctx;
+	struct vidtv_mux_pid_ctx *eit_ctx;
+	u32 nbytes;
+	u16 pmt_pid;
+	u32 i;
+
+	pat_ctx = vidtv_mux_get_pid_ctx(m, VIDTV_PAT_PID);
+	sdt_ctx = vidtv_mux_get_pid_ctx(m, VIDTV_SDT_PID);
+	nit_ctx = vidtv_mux_get_pid_ctx(m, VIDTV_NIT_PID);
+	eit_ctx = vidtv_mux_get_pid_ctx(m, VIDTV_EIT_PID);
+
+	if (!pat_ctx || !sdt_ctx || !nit_ctx || !eit_ctx)
+		return 0;
+
+	pat_args.offset             = m->mux_buf_offset;
+	pat_args.continuity_counter = &pat_ctx->cc;
+
+	m->mux_buf_offset += vidtv_psi_pat_write_into(&pat_args);
+
+	for (i = 0; i < m->si.pat->num_pmt; ++i) {
+		pmt_pid = vidtv_psi_pmt_get_pid(m->si.pmt_secs[i],
+						m->si.pat);
+
+		if (pmt_pid > TS_LAST_VALID_PID) {
+			dev_warn_ratelimited(m->dev,
+					     "PID: %d not found\n", pmt_pid);
+			continue;
+		}
+
+		pmt_ctx = vidtv_mux_get_pid_ctx(m, pmt_pid);
+		if (!pmt_ctx)
+			continue;
+
+		pmt_args.offset             = m->mux_buf_offset;
+		pmt_args.pmt                = m->si.pmt_secs[i];
+		pmt_args.pid                = pmt_pid;
+		pmt_args.continuity_counter = &pmt_ctx->cc;
+
+		/* write each section into buffer */
+		m->mux_buf_offset += vidtv_psi_pmt_write_into(&pmt_args);
+	}
+
+	sdt_args.offset             = m->mux_buf_offset;
+	sdt_args.continuity_counter = &sdt_ctx->cc;
+
+	m->mux_buf_offset += vidtv_psi_sdt_write_into(&sdt_args);
+
+	nit_args.offset             = m->mux_buf_offset;
+	nit_args.continuity_counter = &nit_ctx->cc;
+
+	m->mux_buf_offset += vidtv_psi_nit_write_into(&nit_args);
+
+	eit_args.offset             = m->mux_buf_offset;
+	eit_args.continuity_counter = &eit_ctx->cc;
+
+	m->mux_buf_offset += vidtv_psi_eit_write_into(&eit_args);
+
+	nbytes = m->mux_buf_offset - initial_offset;
+
+	m->num_streamed_si++;
+
+	return nbytes;
+}
+
+static u32 vidtv_mux_push_pcr(struct vidtv_mux *m)
+{
+	struct pcr_write_args args = {};
+	struct vidtv_mux_pid_ctx *ctx;
+	u32 nbytes = 0;
+
+	ctx                     = vidtv_mux_get_pid_ctx(m, m->pcr_pid);
+	args.dest_buf           = m->mux_buf;
+	args.pid                = m->pcr_pid;
+	args.buf_sz             = m->mux_buf_sz;
+	args.continuity_counter = &ctx->cc;
+
+	/* the 27Mhz clock will feed both parts of the PCR bitfield */
+	args.pcr = m->timing.clk;
+
+	nbytes += vidtv_ts_pcr_write_into(&args);
+	m->mux_buf_offset += nbytes;
+
+	m->num_streamed_pcr++;
+
+	return nbytes;
+}
+
+static bool vidtv_mux_should_push_pcr(struct vidtv_mux *m)
+{
+	u64 next_pcr_at;
+
+	if (m->num_streamed_pcr == 0)
+		return true;
+
+	next_pcr_at = m->timing.start_jiffies +
+		      usecs_to_jiffies(m->num_streamed_pcr *
+				       m->timing.pcr_period_usecs);
+
+	return time_after64(m->timing.current_jiffies, next_pcr_at);
+}
+
+static bool vidtv_mux_should_push_si(struct vidtv_mux *m)
+{
+	u64 next_si_at;
+
+	if (m->num_streamed_si == 0)
+		return true;
+
+	next_si_at = m->timing.start_jiffies +
+		     usecs_to_jiffies(m->num_streamed_si *
+				      m->timing.si_period_usecs);
+
+	return time_after64(m->timing.current_jiffies, next_si_at);
+}
+
+static u32 vidtv_mux_packetize_access_units(struct vidtv_mux *m,
+					    struct vidtv_encoder *e)
+{
+	struct pes_write_args args = {
+		.dest_buf           = m->mux_buf,
+		.dest_buf_sz        = m->mux_buf_sz,
+		.pid                = be16_to_cpu(e->es_pid),
+		.encoder_id         = e->id,
+		.stream_id          = be16_to_cpu(e->stream_id),
+		.send_pts           = true,  /* forbidden value '01'... */
+		.send_dts           = false, /* ...for PTS_DTS flags    */
+	};
+	struct vidtv_access_unit *au = e->access_units;
+	u32 initial_offset = m->mux_buf_offset;
+	struct vidtv_mux_pid_ctx *pid_ctx;
+	u32 nbytes = 0;
+	u8 *buf = NULL;
+
+	/* see SMPTE 302M clause 6.4 */
+	if (args.encoder_id == S302M) {
+		args.send_dts = false;
+		args.send_pts = true;
+	}
+
+	pid_ctx = vidtv_mux_create_pid_ctx_once(m, be16_to_cpu(e->es_pid));
+	args.continuity_counter = &pid_ctx->cc;
+
+	while (au) {
+		buf                  = e->encoder_buf + au->offset;
+		args.from            = buf;
+		args.access_unit_len = au->nbytes;
+		args.dest_offset     = m->mux_buf_offset;
+		args.pts             = au->pts;
+		args.pcr	     = m->timing.clk;
+
+		m->mux_buf_offset += vidtv_pes_write_into(&args);
+
+		au = au->next;
+	}
+
+	/*
+	 * clear the encoder state once the ES data has been written to the mux
+	 * buffer
+	 */
+	e->clear(e);
+
+	nbytes = m->mux_buf_offset - initial_offset;
+	return nbytes;
+}
+
+static u32 vidtv_mux_poll_encoders(struct vidtv_mux *m)
+{
+	struct vidtv_channel *cur_chnl = m->channels;
+	struct vidtv_encoder *e = NULL;
+	u32 nbytes = 0;
+	u32 au_nbytes;
+
+	while (cur_chnl) {
+		e = cur_chnl->encoders;
+
+		while (e) {
+			e->encode(e);
+			/* get the TS packets into the mux buffer */
+			au_nbytes = vidtv_mux_packetize_access_units(m, e);
+			nbytes += au_nbytes;
+			m->mux_buf_offset += au_nbytes;
+			/* grab next encoder */
+			e = e->next;
+		}
+
+		/* grab the next channel */
+		cur_chnl = cur_chnl->next;
+	}
+
+	return nbytes;
+}
+
+static u32 vidtv_mux_pad_with_nulls(struct vidtv_mux *m, u32 npkts)
+{
+	struct null_packet_write_args args = {
+		.dest_buf           = m->mux_buf,
+		.buf_sz             = m->mux_buf_sz,
+		.dest_offset        = m->mux_buf_offset,
+	};
+	u32 initial_offset = m->mux_buf_offset;
+	struct vidtv_mux_pid_ctx *ctx;
+	u32 nbytes;
+	u32 i;
+
+	ctx = vidtv_mux_get_pid_ctx(m, TS_NULL_PACKET_PID);
+
+	args.continuity_counter = &ctx->cc;
+
+	for (i = 0; i < npkts; ++i) {
+		m->mux_buf_offset += vidtv_ts_null_write_into(&args);
+		args.dest_offset  = m->mux_buf_offset;
+	}
+
+	nbytes = m->mux_buf_offset - initial_offset;
+
+	/* sanity check */
+	if (nbytes != npkts * TS_PACKET_LEN)
+		dev_err_ratelimited(m->dev, "%d != %d\n",
+				    nbytes, npkts * TS_PACKET_LEN);
+
+	return nbytes;
+}
+
+static void vidtv_mux_clear(struct vidtv_mux *m)
+{
+	/* clear the packets currently in the mux */
+	memset(m->mux_buf, 0, m->mux_buf_sz * sizeof(*m->mux_buf));
+	/* point to the beginning of the buffer again */
+	m->mux_buf_offset = 0;
+}
+
+#define ERR_RATE 10000000
+static void vidtv_mux_tick(struct work_struct *work)
+{
+	struct vidtv_mux *m = container_of(work,
+					   struct vidtv_mux,
+					   mpeg_thread);
+	struct dtv_frontend_properties *c = &m->fe->dtv_property_cache;
+	u32 tot_bits = 0;
+	u32 nbytes;
+	u32 npkts;
+
+	while (m->streaming) {
+		nbytes = 0;
+
+		vidtv_mux_update_clk(m);
+
+		if (vidtv_mux_should_push_pcr(m))
+			nbytes += vidtv_mux_push_pcr(m);
+
+		if (vidtv_mux_should_push_si(m))
+			nbytes += vidtv_mux_push_si(m);
+
+		nbytes += vidtv_mux_poll_encoders(m);
+		nbytes += vidtv_mux_pad_with_nulls(m, 256);
+
+		npkts = nbytes / TS_PACKET_LEN;
+
+		/* if the buffer is not aligned there is a bug somewhere */
+		if (nbytes % TS_PACKET_LEN)
+			dev_err_ratelimited(m->dev, "Misaligned buffer\n");
+
+		if (m->on_new_packets_available_cb)
+			m->on_new_packets_available_cb(m->priv,
+						       m->mux_buf,
+						       npkts);
+
+		vidtv_mux_clear(m);
+
+		/*
+		 * Update bytes and packet counts at DVBv5 stats
+		 *
+		 * For now, both pre and post bit counts are identical,
+		 * but post BER count can be lower than pre BER, if the error
+		 * correction logic discards packages.
+		 */
+		c->pre_bit_count.stat[0].uvalue = nbytes * 8;
+		c->post_bit_count.stat[0].uvalue = nbytes * 8;
+		c->block_count.stat[0].uvalue += npkts;
+
+		/*
+		 * Even without any visible errors for the user, the pre-BER
+		 * stats usually have an error range up to 1E-6. So,
+		 * add some random error increment count to it.
+		 *
+		 * Please notice that this is a poor guy's implementation,
+		 * as it will produce one corrected bit error every time
+		 * ceil(total bytes / ERR_RATE) is incremented, without
+		 * any sort of (pseudo-)randomness.
+		 */
+		tot_bits += nbytes * 8;
+		if (tot_bits > ERR_RATE) {
+			c->pre_bit_error.stat[0].uvalue++;
+			tot_bits -= ERR_RATE;
+		}
+
+		usleep_range(VIDTV_SLEEP_USECS, VIDTV_MAX_SLEEP_USECS);
+	}
+}
+
+void vidtv_mux_start_thread(struct vidtv_mux *m)
+{
+	if (m->streaming) {
+		dev_warn_ratelimited(m->dev, "Already streaming. Skipping.\n");
+		return;
+	}
+
+	m->streaming = true;
+	m->timing.start_jiffies = get_jiffies_64();
+	schedule_work(&m->mpeg_thread);
+}
+
+void vidtv_mux_stop_thread(struct vidtv_mux *m)
+{
+	if (m->streaming) {
+		m->streaming = false; /* thread will quit */
+		cancel_work_sync(&m->mpeg_thread);
+	}
+}
+
+struct vidtv_mux *vidtv_mux_init(struct dvb_frontend *fe,
+				 struct device *dev,
+				 struct vidtv_mux_init_args *args)
+{
+	struct vidtv_mux *m;
+
+	m = kzalloc_obj(*m);
+	if (!m)
+		return NULL;
+
+	m->dev = dev;
+	m->fe = fe;
+	m->timing.pcr_period_usecs = args->pcr_period_usecs;
+	m->timing.si_period_usecs  = args->si_period_usecs;
+
+	m->mux_rate_kbytes_sec = args->mux_rate_kbytes_sec;
+
+	m->on_new_packets_available_cb = args->on_new_packets_available_cb;
+
+	m->mux_buf = vzalloc(args->mux_buf_sz);
+	if (!m->mux_buf)
+		goto free_mux;
+
+	m->mux_buf_sz = args->mux_buf_sz;
+
+	m->pcr_pid = args->pcr_pid;
+	m->transport_stream_id = args->transport_stream_id;
+	m->priv = args->priv;
+	m->network_id = args->network_id;
+	m->network_name = kstrdup(args->network_name, GFP_KERNEL);
+	if (!m->network_name)
+		goto free_mux_buf;
+
+	m->timing.current_jiffies = get_jiffies_64();
+
+	if (args->channels)
+		m->channels = args->channels;
+	else
+		if (vidtv_channels_init(m) < 0)
+			goto free_mux_network_name;
+
+	/* will alloc data for pmt_sections after initializing pat */
+	if (vidtv_channel_si_init(m) < 0)
+		goto free_channels;
+
+	INIT_WORK(&m->mpeg_thread, vidtv_mux_tick);
+
+	if (vidtv_mux_pid_ctx_init(m) < 0)
+		goto free_channel_si;
+
+	return m;
+
+free_channel_si:
+	vidtv_channel_si_destroy(m);
+free_channels:
+	vidtv_channels_destroy(m);
+free_mux_network_name:
+	kfree(m->network_name);
+free_mux_buf:
+	vfree(m->mux_buf);
+free_mux:
+	kfree(m);
+	return NULL;
+}
+
+void vidtv_mux_destroy(struct vidtv_mux *m)
+{
+	vidtv_mux_stop_thread(m);
+	vidtv_mux_pid_ctx_destroy(m);
+	vidtv_channel_si_destroy(m);
+	vidtv_channels_destroy(m);
+	kfree(m->network_name);
+	vfree(m->mux_buf);
+	kfree(m);
+}
diff --git a/drivers/media/test-drivers/vidtv/vidtv_mux.h b/drivers/media/test-drivers/vidtv/vidtv_mux.h
new file mode 100644
index 000000000..ad82eb72b
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_mux.h
@@ -0,0 +1,182 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Vidtv serves as a reference DVB driver and helps validate the existing APIs
+ * in the media subsystem. It can also aid developers working on userspace
+ * applications.
+ *
+ * This file contains the muxer logic for TS packets from different
+ * elementary streams.
+ *
+ * Loosely based on libavcodec/mpegtsenc.c
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#ifndef VIDTV_MUX_H
+#define VIDTV_MUX_H
+
+#include <linux/hashtable.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
+#include <media/dvb_frontend.h>
+
+#include "vidtv_psi.h"
+
+/**
+ * struct vidtv_mux_timing - Timing related information
+ *
+ * This is used to decide when PCR or PSI packets should be sent. This will also
+ * provide storage for the clock, which is used to compute the value for the PCR.
+ *
+ * @start_jiffies: The value of 'jiffies' when we started the mux thread.
+ * @current_jiffies: The value of 'jiffies' for the current iteration.
+ * @past_jiffies: The value of 'jiffies' for the past iteration.
+ * @clk: A 27Mhz clock from which we will drive the PCR. Updated proportionally
+ * on every iteration.
+ * @pcr_period_usecs: How often we should send PCR packets.
+ * @si_period_usecs: How often we should send PSI packets.
+ */
+struct vidtv_mux_timing {
+	u64 start_jiffies;
+	u64 current_jiffies;
+	u64 past_jiffies;
+
+	u64 clk;
+
+	u64 pcr_period_usecs;
+	u64 si_period_usecs;
+};
+
+/**
+ * struct vidtv_mux_si - Store the PSI context.
+ *
+ * This is used to store the PAT, PMT sections and SDT in use by the muxer.
+ *
+ * The muxer acquire these by looking into the hardcoded channels in
+ * vidtv_channel and then periodically sends the TS packets for them>
+ *
+ * @pat: The PAT in use by the muxer.
+ * @pmt_secs: The PMT sections in use by the muxer. One for each program in the PAT.
+ * @sdt: The SDT in use by the muxer.
+ * @nit: The NIT in use by the muxer.
+ * @eit: the EIT in use by the muxer.
+ */
+struct vidtv_mux_si {
+	/* the SI tables */
+	struct vidtv_psi_table_pat *pat;
+	struct vidtv_psi_table_pmt **pmt_secs; /* the PMT sections */
+	struct vidtv_psi_table_sdt *sdt;
+	struct vidtv_psi_table_nit *nit;
+	struct vidtv_psi_table_eit *eit;
+};
+
+/**
+ * struct vidtv_mux_pid_ctx - Store the context for a given TS PID.
+ * @pid: The TS PID.
+ * @cc: The continuity counter for this PID. It is incremented on every TS
+ * pack and it will wrap around at 0xf0. If the decoder notices a sudden jump in
+ * this counter this will trigger a discontinuity state.
+ * @h: This is embedded in a hash table, mapping pid -> vidtv_mux_pid_ctx
+ */
+struct vidtv_mux_pid_ctx {
+	u16 pid;
+	u8 cc; /* continuity counter */
+	struct hlist_node h;
+};
+
+/**
+ * struct vidtv_mux - A muxer abstraction loosely based in libavcodec/mpegtsenc.c
+ * @fe: The frontend structure allocated by the muxer.
+ * @dev: pointer to struct device.
+ * @timing: Keeps track of timing related information.
+ * @mux_rate_kbytes_sec: The bit rate for the TS, in kbytes.
+ * @pid_ctx: A hash table to keep track of per-PID metadata.
+ * @on_new_packets_available_cb: A callback to inform of new TS packets ready.
+ * @mux_buf: A pointer to a buffer for this muxer. TS packets are stored there
+ * and then passed on to the bridge driver.
+ * @mux_buf_sz: The size for 'mux_buf'.
+ * @mux_buf_offset: The current offset into 'mux_buf'.
+ * @channels: The channels associated with this muxer.
+ * @si: Keeps track of the PSI context.
+ * @num_streamed_pcr: Number of PCR packets streamed.
+ * @num_streamed_si: The number of PSI packets streamed.
+ * @mpeg_thread: Thread responsible for the muxer loop.
+ * @streaming: whether 'mpeg_thread' is running.
+ * @pcr_pid: The TS PID used for the PSI packets. All channels will share the
+ * same PCR.
+ * @transport_stream_id: The transport stream ID
+ * @network_id: The network ID
+ * @network_name: The network name
+ * @priv: Private data.
+ */
+struct vidtv_mux {
+	struct dvb_frontend *fe;
+	struct device *dev;
+
+	struct vidtv_mux_timing timing;
+
+	u32 mux_rate_kbytes_sec;
+
+	DECLARE_HASHTABLE(pid_ctx, 3);
+
+	void (*on_new_packets_available_cb)(void *priv, u8 *buf, u32 npackets);
+
+	u8 *mux_buf;
+	u32 mux_buf_sz;
+	u32 mux_buf_offset;
+
+	struct vidtv_channel  *channels;
+
+	struct vidtv_mux_si si;
+	u64 num_streamed_pcr;
+	u64 num_streamed_si;
+
+	struct work_struct mpeg_thread;
+	bool streaming;
+
+	u16 pcr_pid;
+	u16 transport_stream_id;
+	u16 network_id;
+	char *network_name;
+	void *priv;
+};
+
+/**
+ * struct vidtv_mux_init_args - Arguments used to inix the muxer.
+ * @mux_rate_kbytes_sec: The bit rate for the TS, in kbytes.
+ * @on_new_packets_available_cb: A callback to inform of new TS packets ready.
+ * @mux_buf_sz: The size for 'mux_buf'.
+ * @pcr_period_usecs: How often we should send PCR packets.
+ * @si_period_usecs: How often we should send PSI packets.
+ * @pcr_pid: The TS PID used for the PSI packets. All channels will share the
+ * same PCR.
+ * @transport_stream_id: The transport stream ID
+ * @channels: an optional list of channels to use
+ * @network_id: The network ID
+ * @network_name: The network name
+ * @priv: Private data.
+ */
+struct vidtv_mux_init_args {
+	u32 mux_rate_kbytes_sec;
+	void (*on_new_packets_available_cb)(void *priv, u8 *buf, u32 npackets);
+	u32 mux_buf_sz;
+	u64 pcr_period_usecs;
+	u64 si_period_usecs;
+	u16 pcr_pid;
+	u16 transport_stream_id;
+	struct vidtv_channel *channels;
+	u16 network_id;
+	char *network_name;
+	void *priv;
+};
+
+struct vidtv_mux *vidtv_mux_init(struct dvb_frontend *fe,
+				 struct device *dev,
+				 struct vidtv_mux_init_args *args);
+void vidtv_mux_destroy(struct vidtv_mux *m);
+
+void vidtv_mux_start_thread(struct vidtv_mux *m);
+void vidtv_mux_stop_thread(struct vidtv_mux *m);
+
+#endif //VIDTV_MUX_H
diff --git a/drivers/media/test-drivers/vidtv/vidtv_pes.c b/drivers/media/test-drivers/vidtv/vidtv_pes.c
new file mode 100644
index 000000000..6a360a0a3
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_pes.c
@@ -0,0 +1,426 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Vidtv serves as a reference DVB driver and helps validate the existing APIs
+ * in the media subsystem. It can also aid developers working on userspace
+ * applications.
+ *
+ * This file contains the logic to translate the ES data for one access unit
+ * from an encoder into MPEG TS packets. It does so by first encapsulating it
+ * with a PES header and then splitting it into TS packets.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__
+
+#include <linux/types.h>
+#include <linux/math64.h>
+#include <linux/printk.h>
+#include <linux/ratelimit.h>
+
+#include "vidtv_pes.h"
+#include "vidtv_common.h"
+#include "vidtv_encoder.h"
+#include "vidtv_ts.h"
+
+#define PRIVATE_STREAM_1_ID 0xbd /* private_stream_1. See SMPTE 302M-2007 p.6 */
+#define PES_HEADER_MAX_STUFFING_BYTES 32
+#define PES_TS_HEADER_MAX_STUFFING_BYTES 182
+
+static u32 vidtv_pes_op_get_len(bool send_pts, bool send_dts)
+{
+	u32 len = 0;
+
+	/* the flags must always be sent */
+	len += sizeof(struct vidtv_pes_optional);
+
+	/* From all optionals, we might send these for now */
+	if (send_pts && send_dts)
+		len += sizeof(struct vidtv_pes_optional_pts_dts);
+	else if (send_pts)
+		len += sizeof(struct vidtv_pes_optional_pts);
+
+	return len;
+}
+
+#define SIZE_PCR (6 + sizeof(struct vidtv_mpeg_ts_adaption))
+
+static u32 vidtv_pes_h_get_len(bool send_pts, bool send_dts)
+{
+	u32 len = 0;
+
+	/* PES header length notwithstanding stuffing bytes */
+
+	len += sizeof(struct vidtv_mpeg_pes);
+	len += vidtv_pes_op_get_len(send_pts, send_dts);
+
+	return len;
+}
+
+static u32 vidtv_pes_write_header_stuffing(struct pes_header_write_args *args)
+{
+	/*
+	 * This is a fixed 8-bit value equal to '0xFF' that can be inserted
+	 * by the encoder, for example to meet the requirements of the channel.
+	 * It is discarded by the decoder. No more than 32 stuffing bytes shall
+	 * be present in one PES packet header.
+	 */
+	if (args->n_pes_h_s_bytes > PES_HEADER_MAX_STUFFING_BYTES) {
+		pr_warn_ratelimited("More than %d stuffing bytes in PES packet header\n",
+				    PES_HEADER_MAX_STUFFING_BYTES);
+		args->n_pes_h_s_bytes = PES_HEADER_MAX_STUFFING_BYTES;
+	}
+
+	return vidtv_memset(args->dest_buf,
+			    args->dest_offset,
+			    args->dest_buf_sz,
+			    TS_FILL_BYTE,
+			    args->n_pes_h_s_bytes);
+}
+
+static u32 vidtv_pes_write_pts_dts(struct pes_header_write_args *args)
+{
+	u32 nbytes = 0;  /* the number of bytes written by this function */
+
+	struct vidtv_pes_optional_pts pts = {};
+	struct vidtv_pes_optional_pts_dts pts_dts = {};
+	void *op = NULL;
+	size_t op_sz = 0;
+	u64 mask1;
+	u64 mask2;
+	u64 mask3;
+
+	if (!args->send_pts && args->send_dts)
+		return 0;
+
+	mask1 = GENMASK_ULL(32, 30);
+	mask2 = GENMASK_ULL(29, 15);
+	mask3 = GENMASK_ULL(14, 0);
+
+	/* see ISO/IEC 13818-1 : 2000 p. 32 */
+	if (args->send_pts && args->send_dts) {
+		pts_dts.pts1 = (0x3 << 4) | ((args->pts & mask1) >> 29) | 0x1;
+		pts_dts.pts2 = cpu_to_be16(((args->pts & mask2) >> 14) | 0x1);
+		pts_dts.pts3 = cpu_to_be16(((args->pts & mask3) << 1) | 0x1);
+
+		pts_dts.dts1 = (0x1 << 4) | ((args->dts & mask1) >> 29) | 0x1;
+		pts_dts.dts2 = cpu_to_be16(((args->dts & mask2) >> 14) | 0x1);
+		pts_dts.dts3 = cpu_to_be16(((args->dts & mask3) << 1) | 0x1);
+
+		op = &pts_dts;
+		op_sz = sizeof(pts_dts);
+
+	} else if (args->send_pts) {
+		pts.pts1 = (0x1 << 5) | ((args->pts & mask1) >> 29) | 0x1;
+		pts.pts2 = cpu_to_be16(((args->pts & mask2) >> 14) | 0x1);
+		pts.pts3 = cpu_to_be16(((args->pts & mask3) << 1) | 0x1);
+
+		op = &pts;
+		op_sz = sizeof(pts);
+	}
+
+	/* copy PTS/DTS optional */
+	nbytes += vidtv_memcpy(args->dest_buf,
+			       args->dest_offset + nbytes,
+			       args->dest_buf_sz,
+			       op,
+			       op_sz);
+
+	return nbytes;
+}
+
+static u32 vidtv_pes_write_h(struct pes_header_write_args *args)
+{
+	u32 nbytes = 0;  /* the number of bytes written by this function */
+
+	struct vidtv_mpeg_pes pes_header          = {};
+	struct vidtv_pes_optional pes_optional    = {};
+	struct pes_header_write_args pts_dts_args;
+	u32 stream_id = (args->encoder_id == S302M) ? PRIVATE_STREAM_1_ID : args->stream_id;
+	u16 pes_opt_bitfield = 0x01 << 15;
+
+	pes_header.bitfield = cpu_to_be32((PES_START_CODE_PREFIX << 8) | stream_id);
+
+	pes_header.length = cpu_to_be16(vidtv_pes_op_get_len(args->send_pts,
+							     args->send_dts) +
+							     args->access_unit_len);
+
+	if (args->send_pts && args->send_dts)
+		pes_opt_bitfield |= (0x3 << 6);
+	else if (args->send_pts)
+		pes_opt_bitfield |= (0x1 << 7);
+
+	pes_optional.bitfield = cpu_to_be16(pes_opt_bitfield);
+	pes_optional.length = vidtv_pes_op_get_len(args->send_pts, args->send_dts) +
+			      args->n_pes_h_s_bytes -
+			      sizeof(struct vidtv_pes_optional);
+
+	/* copy header */
+	nbytes += vidtv_memcpy(args->dest_buf,
+			       args->dest_offset + nbytes,
+			       args->dest_buf_sz,
+			       &pes_header,
+			       sizeof(pes_header));
+
+	/* copy optional header bits */
+	nbytes += vidtv_memcpy(args->dest_buf,
+			       args->dest_offset + nbytes,
+			       args->dest_buf_sz,
+			       &pes_optional,
+			       sizeof(pes_optional));
+
+	/* copy the timing information */
+	pts_dts_args = *args;
+	pts_dts_args.dest_offset = args->dest_offset + nbytes;
+	nbytes += vidtv_pes_write_pts_dts(&pts_dts_args);
+
+	/* write any PES header stuffing */
+	nbytes += vidtv_pes_write_header_stuffing(args);
+
+	return nbytes;
+}
+
+static u32 vidtv_pes_write_pcr_bits(u8 *to, u32 to_offset, u64 pcr)
+{
+	/* Exact same from ffmpeg. PCR is a counter driven by a 27Mhz clock */
+	u64 div;
+	u64 rem;
+	u8 *buf = to + to_offset;
+	u64 pcr_low;
+	u64 pcr_high;
+
+	div = div64_u64_rem(pcr, 300, &rem);
+
+	pcr_low = rem; /* pcr_low = pcr % 300 */
+	pcr_high = div; /* pcr_high = pcr / 300 */
+
+	*buf++ = pcr_high >> 25;
+	*buf++ = pcr_high >> 17;
+	*buf++ = pcr_high >>  9;
+	*buf++ = pcr_high >>  1;
+	*buf++ = pcr_high <<  7 | pcr_low >> 8 | 0x7e;
+	*buf++ = pcr_low;
+
+	return 6;
+}
+
+static u32 vidtv_pes_write_stuffing(struct pes_ts_header_write_args *args,
+				    u32 dest_offset, bool need_pcr,
+				    u64 *last_pcr)
+{
+	struct vidtv_mpeg_ts_adaption ts_adap = {};
+	int stuff_nbytes;
+	u32 nbytes = 0;
+
+	if (!args->n_stuffing_bytes)
+		return 0;
+
+	ts_adap.random_access = 1;
+
+	/* length _immediately_ following 'adaptation_field_length' */
+	if (need_pcr) {
+		ts_adap.PCR = 1;
+		ts_adap.length = SIZE_PCR;
+	} else {
+		ts_adap.length = sizeof(ts_adap);
+	}
+	stuff_nbytes = args->n_stuffing_bytes - ts_adap.length;
+
+	ts_adap.length -= sizeof(ts_adap.length);
+
+	if (unlikely(stuff_nbytes < 0))
+		stuff_nbytes = 0;
+
+	ts_adap.length += stuff_nbytes;
+
+	/* write the adap after the TS header */
+	nbytes += vidtv_memcpy(args->dest_buf,
+			       dest_offset + nbytes,
+			       args->dest_buf_sz,
+			       &ts_adap,
+			       sizeof(ts_adap));
+
+	/* write the optional PCR */
+	if (need_pcr) {
+		nbytes += vidtv_pes_write_pcr_bits(args->dest_buf,
+						   dest_offset + nbytes,
+						   args->pcr);
+
+		*last_pcr = args->pcr;
+	}
+
+	/* write the stuffing bytes, if are there anything left */
+	if (stuff_nbytes)
+		nbytes += vidtv_memset(args->dest_buf,
+				       dest_offset + nbytes,
+				       args->dest_buf_sz,
+				       TS_FILL_BYTE,
+				       stuff_nbytes);
+
+	/*
+	 * The n_stuffing_bytes contain a pre-calculated value of
+	 * the amount of data that this function would read, made from
+	 * vidtv_pes_h_get_len(). If something went wrong, print a warning
+	 */
+	if (nbytes != args->n_stuffing_bytes)
+		pr_warn_ratelimited("write size was %d, expected %d\n",
+				    nbytes, args->n_stuffing_bytes);
+
+	return nbytes;
+}
+
+static u32 vidtv_pes_write_ts_h(struct pes_ts_header_write_args args,
+				bool need_pcr, u64 *last_pcr)
+{
+	/* number of bytes written by this function */
+	u32 nbytes = 0;
+	struct vidtv_mpeg_ts ts_header = {};
+	u16 payload_start = !args.wrote_pes_header;
+
+	ts_header.sync_byte        = TS_SYNC_BYTE;
+	ts_header.bitfield         = cpu_to_be16((payload_start << 14) | args.pid);
+	ts_header.scrambling       = 0;
+	ts_header.adaptation_field = (args.n_stuffing_bytes) > 0;
+	ts_header.payload          = (args.n_stuffing_bytes) < PES_TS_HEADER_MAX_STUFFING_BYTES;
+
+	ts_header.continuity_counter = *args.continuity_counter;
+
+	vidtv_ts_inc_cc(args.continuity_counter);
+
+	/* write the TS header */
+	nbytes += vidtv_memcpy(args.dest_buf,
+			       args.dest_offset + nbytes,
+			       args.dest_buf_sz,
+			       &ts_header,
+			       sizeof(ts_header));
+
+	/* write stuffing, if any */
+	nbytes += vidtv_pes_write_stuffing(&args, args.dest_offset + nbytes,
+					   need_pcr, last_pcr);
+
+	return nbytes;
+}
+
+u32 vidtv_pes_write_into(struct pes_write_args *args)
+{
+	u32 unaligned_bytes = (args->dest_offset % TS_PACKET_LEN);
+	struct pes_ts_header_write_args ts_header_args = {
+		.dest_buf		= args->dest_buf,
+		.dest_buf_sz		= args->dest_buf_sz,
+		.pid			= args->pid,
+		.pcr			= args->pcr,
+		.continuity_counter	= args->continuity_counter,
+	};
+	struct pes_header_write_args pes_header_args = {
+		.dest_buf		= args->dest_buf,
+		.dest_buf_sz		= args->dest_buf_sz,
+		.encoder_id		= args->encoder_id,
+		.send_pts		= args->send_pts,
+		.pts			= args->pts,
+		.send_dts		= args->send_dts,
+		.dts			= args->dts,
+		.stream_id		= args->stream_id,
+		.n_pes_h_s_bytes	= args->n_pes_h_s_bytes,
+		.access_unit_len	= args->access_unit_len,
+	};
+	u32 remaining_len = args->access_unit_len;
+	bool wrote_pes_header = false;
+	u64 last_pcr = args->pcr;
+	bool need_pcr = true;
+	u32 available_space;
+	u32 payload_size;
+	u32 stuff_bytes;
+	u32 nbytes = 0;
+
+	if (unaligned_bytes) {
+		pr_warn_ratelimited("buffer is misaligned, while starting PES\n");
+
+		/* forcibly align and hope for the best */
+		nbytes += vidtv_memset(args->dest_buf,
+				       args->dest_offset + nbytes,
+				       args->dest_buf_sz,
+				       TS_FILL_BYTE,
+				       TS_PACKET_LEN - unaligned_bytes);
+	}
+
+	while (remaining_len) {
+		available_space = TS_PAYLOAD_LEN;
+		/*
+		 * The amount of space initially available in the TS packet.
+		 * if this is the beginning of the PES packet, take into account
+		 * the space needed for the TS header _and_ for the PES header
+		 */
+		if (!wrote_pes_header)
+			available_space -= vidtv_pes_h_get_len(args->send_pts,
+							       args->send_dts);
+
+		/*
+		 * if the encoder has inserted stuffing bytes in the PES
+		 * header, account for them.
+		 */
+		available_space -= args->n_pes_h_s_bytes;
+
+		/* Take the extra adaptation into account if need to send PCR */
+		if (need_pcr) {
+			available_space -= SIZE_PCR;
+			stuff_bytes = SIZE_PCR;
+		} else {
+			stuff_bytes = 0;
+		}
+
+		/*
+		 * how much of the _actual_ payload should be written in this
+		 * packet.
+		 */
+		if (remaining_len >= available_space) {
+			payload_size = available_space;
+		} else {
+			/* Last frame should ensure 188-bytes PS alignment */
+			payload_size = remaining_len;
+			stuff_bytes += available_space - payload_size;
+
+			/*
+			 * Ensure that the stuff bytes will be within the
+			 * allowed range, decrementing the number of payload
+			 * bytes to write if needed.
+			 */
+			if (stuff_bytes > PES_TS_HEADER_MAX_STUFFING_BYTES) {
+				u32 tmp = stuff_bytes - PES_TS_HEADER_MAX_STUFFING_BYTES;
+
+				stuff_bytes = PES_TS_HEADER_MAX_STUFFING_BYTES;
+				payload_size -= tmp;
+			}
+		}
+
+		/* write ts header */
+		ts_header_args.dest_offset = args->dest_offset + nbytes;
+		ts_header_args.wrote_pes_header	= wrote_pes_header;
+		ts_header_args.n_stuffing_bytes	= stuff_bytes;
+
+		nbytes += vidtv_pes_write_ts_h(ts_header_args, need_pcr,
+					       &last_pcr);
+
+		need_pcr = false;
+
+		if (!wrote_pes_header) {
+			/* write the PES header only once */
+			pes_header_args.dest_offset = args->dest_offset +
+						      nbytes;
+			nbytes += vidtv_pes_write_h(&pes_header_args);
+			wrote_pes_header = true;
+		}
+
+		/* write as much of the payload as we possibly can */
+		nbytes += vidtv_memcpy(args->dest_buf,
+				       args->dest_offset + nbytes,
+				       args->dest_buf_sz,
+				       args->from,
+				       payload_size);
+
+		args->from += payload_size;
+
+		remaining_len -= payload_size;
+	}
+
+	return nbytes;
+}
diff --git a/drivers/media/test-drivers/vidtv/vidtv_pes.h b/drivers/media/test-drivers/vidtv/vidtv_pes.h
new file mode 100644
index 000000000..963c59155
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_pes.h
@@ -0,0 +1,193 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Vidtv serves as a reference DVB driver and helps validate the existing APIs
+ * in the media subsystem. It can also aid developers working on userspace
+ * applications.
+ *
+ * This file contains the logic to translate the ES data for one access unit
+ * from an encoder into MPEG TS packets. It does so by first encapsulating it
+ * with a PES header and then splitting it into TS packets.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#ifndef VIDTV_PES_H
+#define VIDTV_PES_H
+
+#include <linux/types.h>
+
+#include "vidtv_common.h"
+
+#define PES_MAX_LEN 65536 /* Set 'length' to 0 if greater. Only possible for video. */
+#define PES_START_CODE_PREFIX 0x001 /* 00 00 01 */
+
+/* Used when sending PTS, but not DTS */
+struct vidtv_pes_optional_pts {
+	u8 pts1;
+	__be16 pts2;
+	__be16 pts3;
+} __packed;
+
+/* Used when sending both PTS and DTS */
+struct vidtv_pes_optional_pts_dts {
+	u8 pts1;
+	__be16 pts2;
+	__be16 pts3;
+
+	u8 dts1;
+	__be16 dts2;
+	__be16 dts3;
+} __packed;
+
+/* PES optional flags */
+struct vidtv_pes_optional {
+	/*
+	 * These flags show which components are actually
+	 * present in the "optional fields" in the optional PES
+	 * header and which are not
+	 *
+	 * u16 two:2;  //0x2
+	 * u16 PES_scrambling_control:2;
+	 * u16 PES_priority:1;
+	 * u16 data_alignment_indicator:1; // unused
+	 * u16 copyright:1;
+	 * u16 original_or_copy:1;
+	 * u16 PTS_DTS:2;
+	 * u16 ESCR:1;
+	 * u16 ES_rate:1;
+	 * u16 DSM_trick_mode:1;
+	 * u16 additional_copy_info:1;
+	 * u16 PES_CRC:1;
+	 * u16 PES_extension:1;
+	 */
+	__be16 bitfield;
+	u8 length;
+} __packed;
+
+/* The PES header */
+struct vidtv_mpeg_pes {
+	__be32 bitfield; /* packet_start_code_prefix:24, stream_id: 8 */
+	/* after this field until the end of the PES data payload */
+	__be16 length;
+	struct vidtv_pes_optional optional[];
+} __packed;
+
+/**
+ * struct pes_header_write_args - Arguments to write a PES header.
+ * @dest_buf: The buffer to write into.
+ * @dest_offset: where to start writing in the dest_buffer.
+ * @dest_buf_sz: The size of the dest_buffer
+ * @encoder_id: Encoder id (see vidtv_encoder.h)
+ * @send_pts: Should we send PTS?
+ * @pts: PTS value to send.
+ * @send_dts: Should we send DTS?
+ * @dts: DTS value to send.
+ * @stream_id: The stream id to use. Ex: Audio streams (0xc0-0xdf), Video
+ * streams (0xe0-0xef).
+ * @n_pes_h_s_bytes: Padding bytes. Might be used by an encoder if needed, gets
+ * discarded by the decoder.
+ * @access_unit_len: The size of _one_ access unit (with any headers it might need)
+ */
+struct pes_header_write_args {
+	void *dest_buf;
+	u32 dest_offset;
+	u32 dest_buf_sz;
+	u32 encoder_id;
+
+	bool send_pts;
+	u64 pts;
+
+	bool send_dts;
+	u64 dts;
+
+	u16 stream_id;
+	/* might be used by an encoder if needed, gets discarded by decoder */
+	u32 n_pes_h_s_bytes;
+	u32 access_unit_len;
+};
+
+/**
+ * struct pes_ts_header_write_args - Arguments to write a TS header.
+ * @dest_buf: The buffer to write into.
+ * @dest_offset: where to start writing in the dest_buffer.
+ * @dest_buf_sz: The size of the dest_buffer
+ * @pid: The PID to use for the TS packets.
+ * @continuity_counter: Incremented on every new TS packet.
+ * @wrote_pes_header: Flag to indicate that the PES header was written
+ * @n_stuffing_bytes: Padding bytes. Might be used by an encoder if needed, gets
+ * discarded by the decoder.
+ * @pcr: counter driven by a 27Mhz clock.
+ */
+struct pes_ts_header_write_args {
+	void *dest_buf;
+	u32 dest_offset;
+	u32 dest_buf_sz;
+	u16 pid;
+	u8 *continuity_counter;
+	bool wrote_pes_header;
+	u32 n_stuffing_bytes;
+	u64 pcr;
+};
+
+/**
+ * struct pes_write_args - Arguments for the packetizer.
+ * @dest_buf: The buffer to write into.
+ * @from: A pointer to the encoder buffer containing one access unit.
+ * @access_unit_len: The size of _one_ access unit (with any headers it might need)
+ * @dest_offset: where to start writing in the dest_buffer.
+ * @dest_buf_sz: The size of the dest_buffer
+ * @pid: The PID to use for the TS packets.
+ * @encoder_id: Encoder id (see vidtv_encoder.h)
+ * @continuity_counter: Incremented on every new TS packet.
+ * @stream_id: The stream id to use. Ex: Audio streams (0xc0-0xdf), Video
+ * streams (0xe0-0xef).
+ * @send_pts: Should we send PTS?
+ * @pts: PTS value to send.
+ * @send_dts: Should we send DTS?
+ * @dts: DTS value to send.
+ * @n_pes_h_s_bytes: Padding bytes. Might be used by an encoder if needed, gets
+ * discarded by the decoder.
+ * @pcr: counter driven by a 27Mhz clock.
+ */
+struct pes_write_args {
+	void *dest_buf;
+	void *from;
+	u32 access_unit_len;
+
+	u32 dest_offset;
+	u32 dest_buf_sz;
+	u16 pid;
+
+	u32 encoder_id;
+
+	u8 *continuity_counter;
+
+	u16 stream_id;
+
+	bool send_pts;
+	u64 pts;
+
+	bool send_dts;
+	u64 dts;
+
+	u32 n_pes_h_s_bytes;
+	u64 pcr;
+};
+
+/**
+ * vidtv_pes_write_into - Write a PES packet as MPEG-TS packets into a buffer.
+ * @args: The args to use when writing
+ *
+ * This function translate the ES data for one access unit
+ * from an encoder into MPEG TS packets. It does so by first encapsulating it
+ * with a PES header and then splitting it into TS packets.
+ *
+ * The data is then written into the buffer pointed to by 'args.buf'
+ *
+ * Return: The number of bytes written into the buffer. This is usually NOT
+ * equal to the size of the access unit, since we need space for PES headers, TS headers
+ * and padding bytes, if any.
+ */
+u32 vidtv_pes_write_into(struct pes_write_args *args);
+
+#endif // VIDTV_PES_H
diff --git a/drivers/media/test-drivers/vidtv/vidtv_psi.c b/drivers/media/test-drivers/vidtv/vidtv_psi.c
new file mode 100644
index 000000000..1b6225d65
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_psi.c
@@ -0,0 +1,1996 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This file contains the logic to work with MPEG Program-Specific Information.
+ * These are defined both in ISO/IEC 13818-1 (systems) and ETSI EN 300 468.
+ * PSI is carried in the form of table structures, and although each table might
+ * technically be broken into one or more sections, we do not do this here,
+ * hence 'table' and 'section' are interchangeable for vidtv.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__
+
+#include <linux/bcd.h>
+#include <linux/crc32.h>
+#include <linux/kernel.h>
+#include <linux/ktime.h>
+#include <linux/printk.h>
+#include <linux/ratelimit.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/time.h>
+#include <linux/types.h>
+
+#include "vidtv_common.h"
+#include "vidtv_psi.h"
+#include "vidtv_ts.h"
+
+#define CRC_SIZE_IN_BYTES 4
+#define MAX_VERSION_NUM 32
+#define INITIAL_CRC 0xffffffff
+#define ISO_LANGUAGE_CODE_LEN 3
+
+static void vidtv_psi_update_version_num(struct vidtv_psi_table_header *h)
+{
+	h->version++;
+}
+
+static u16 vidtv_psi_get_sec_len(struct vidtv_psi_table_header *h)
+{
+	u16 mask;
+
+	mask = GENMASK(11, 0);
+
+	return be16_to_cpu(h->bitfield) & mask;
+}
+
+u16 vidtv_psi_get_pat_program_pid(struct vidtv_psi_table_pat_program *p)
+{
+	u16 mask;
+
+	mask = GENMASK(12, 0);
+
+	return be16_to_cpu(p->bitfield) & mask;
+}
+
+u16 vidtv_psi_pmt_stream_get_elem_pid(struct vidtv_psi_table_pmt_stream *s)
+{
+	u16 mask;
+
+	mask = GENMASK(12, 0);
+
+	return be16_to_cpu(s->bitfield) & mask;
+}
+
+static void vidtv_psi_set_desc_loop_len(__be16 *bitfield, u16 new_len,
+					u8 desc_len_nbits)
+{
+	__be16 new;
+	u16 mask;
+
+	mask = GENMASK(15, desc_len_nbits);
+
+	new = cpu_to_be16((be16_to_cpu(*bitfield) & mask) | new_len);
+	*bitfield = new;
+}
+
+static void vidtv_psi_set_sec_len(struct vidtv_psi_table_header *h, u16 new_len)
+{
+	u16 old_len = vidtv_psi_get_sec_len(h);
+	__be16 new;
+	u16 mask;
+
+	mask = GENMASK(15, 13);
+
+	new = cpu_to_be16((be16_to_cpu(h->bitfield) & mask) | new_len);
+
+	if (old_len > MAX_SECTION_LEN)
+		pr_warn_ratelimited("section length: %d > %d, old len was %d\n",
+				    new_len,
+				    MAX_SECTION_LEN,
+				    old_len);
+
+	h->bitfield = new;
+}
+
+/*
+ * Packetize PSI sections into TS packets:
+ * push a TS header (4bytes) every 184 bytes
+ * manage the continuity_counter
+ * add stuffing (i.e. padding bytes) after the CRC
+ */
+static u32 vidtv_psi_ts_psi_write_into(struct psi_write_args *args)
+{
+	struct vidtv_mpeg_ts ts_header = {
+		.sync_byte = TS_SYNC_BYTE,
+		.bitfield = cpu_to_be16((args->new_psi_section << 14) | args->pid),
+		.scrambling = 0,
+		.payload = 1,
+		.adaptation_field = 0, /* no adaptation field */
+	};
+	u32 nbytes_past_boundary = (args->dest_offset % TS_PACKET_LEN);
+	bool aligned = (nbytes_past_boundary == 0);
+	u32 remaining_len = args->len;
+	u32 payload_write_len = 0;
+	u32 payload_offset = 0;
+	u32 nbytes = 0;
+
+	if (!args->crc && !args->is_crc)
+		pr_warn_ratelimited("Missing CRC for chunk\n");
+
+	if (args->crc)
+		*args->crc = crc32_be(*args->crc, args->from, args->len);
+
+	if (args->new_psi_section && !aligned) {
+		pr_warn_ratelimited("Cannot write a new PSI section in a misaligned buffer\n");
+
+		/* forcibly align and hope for the best */
+		nbytes += vidtv_memset(args->dest_buf,
+				       args->dest_offset + nbytes,
+				       args->dest_buf_sz,
+				       TS_FILL_BYTE,
+				       TS_PACKET_LEN - nbytes_past_boundary);
+	}
+
+	while (remaining_len) {
+		nbytes_past_boundary = (args->dest_offset + nbytes) % TS_PACKET_LEN;
+		aligned = (nbytes_past_boundary == 0);
+
+		if (aligned) {
+			/* if at a packet boundary, write a new TS header */
+			ts_header.continuity_counter = *args->continuity_counter;
+
+			nbytes += vidtv_memcpy(args->dest_buf,
+					       args->dest_offset + nbytes,
+					       args->dest_buf_sz,
+					       &ts_header,
+					       sizeof(ts_header));
+			/*
+			 * This will trigger a discontinuity if the buffer is full,
+			 * effectively dropping the packet.
+			 */
+			vidtv_ts_inc_cc(args->continuity_counter);
+		}
+
+		/* write the pointer_field in the first byte of the payload */
+		if (args->new_psi_section)
+			nbytes += vidtv_memset(args->dest_buf,
+					       args->dest_offset + nbytes,
+					       args->dest_buf_sz,
+					       0x0,
+					       1);
+
+		/* write as much of the payload as possible */
+		nbytes_past_boundary = (args->dest_offset + nbytes) % TS_PACKET_LEN;
+		payload_write_len = min(TS_PACKET_LEN - nbytes_past_boundary, remaining_len);
+
+		nbytes += vidtv_memcpy(args->dest_buf,
+				       args->dest_offset + nbytes,
+				       args->dest_buf_sz,
+				       args->from + payload_offset,
+				       payload_write_len);
+
+		/* 'payload_write_len' written from a total of 'len' requested*/
+		remaining_len -= payload_write_len;
+		payload_offset += payload_write_len;
+	}
+
+	/*
+	 * fill the rest of the packet if there is any remaining space unused
+	 */
+
+	nbytes_past_boundary = (args->dest_offset + nbytes) % TS_PACKET_LEN;
+
+	if (args->is_crc)
+		nbytes += vidtv_memset(args->dest_buf,
+				       args->dest_offset + nbytes,
+				       args->dest_buf_sz,
+				       TS_FILL_BYTE,
+				       TS_PACKET_LEN - nbytes_past_boundary);
+
+	return nbytes;
+}
+
+static u32 table_section_crc32_write_into(struct crc32_write_args *args)
+{
+	struct psi_write_args psi_args = {
+		.dest_buf           = args->dest_buf,
+		.from               = &args->crc,
+		.len                = CRC_SIZE_IN_BYTES,
+		.dest_offset        = args->dest_offset,
+		.pid                = args->pid,
+		.new_psi_section    = false,
+		.continuity_counter = args->continuity_counter,
+		.is_crc             = true,
+		.dest_buf_sz        = args->dest_buf_sz,
+	};
+
+	/* the CRC is the last entry in the section */
+
+	return vidtv_psi_ts_psi_write_into(&psi_args);
+}
+
+static void vidtv_psi_desc_chain(struct vidtv_psi_desc *head, struct vidtv_psi_desc *desc)
+{
+	if (head) {
+		while (head->next)
+			head = head->next;
+
+		head->next = desc;
+	}
+}
+
+struct vidtv_psi_desc_service *vidtv_psi_service_desc_init(struct vidtv_psi_desc *head,
+							   enum service_type service_type,
+							   char *service_name,
+							   char *provider_name)
+{
+	struct vidtv_psi_desc_service *desc;
+	u32 service_name_len = service_name ? strlen(service_name) : 0;
+	u32 provider_name_len = provider_name ? strlen(provider_name) : 0;
+
+	desc = kzalloc_obj(*desc);
+	if (!desc)
+		return NULL;
+
+	desc->type = SERVICE_DESCRIPTOR;
+
+	desc->length = sizeof_field(struct vidtv_psi_desc_service, service_type)
+		       + sizeof_field(struct vidtv_psi_desc_service, provider_name_len)
+		       + provider_name_len
+		       + sizeof_field(struct vidtv_psi_desc_service, service_name_len)
+		       + service_name_len;
+
+	desc->service_type = service_type;
+
+	desc->service_name_len = service_name_len;
+
+	if (service_name && service_name_len) {
+		desc->service_name = kstrdup(service_name, GFP_KERNEL);
+		if (!desc->service_name)
+			goto free_desc;
+	}
+
+	desc->provider_name_len = provider_name_len;
+
+	if (provider_name && provider_name_len) {
+		desc->provider_name = kstrdup(provider_name, GFP_KERNEL);
+		if (!desc->provider_name)
+			goto free_desc_service_name;
+	}
+
+	vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc);
+	return desc;
+
+free_desc_service_name:
+	if (service_name && service_name_len)
+		kfree(desc->service_name);
+free_desc:
+	kfree(desc);
+	return NULL;
+}
+
+struct vidtv_psi_desc_registration
+*vidtv_psi_registration_desc_init(struct vidtv_psi_desc *head,
+				  __be32 format_id,
+				  u8 *additional_ident_info,
+				  u32 additional_info_len)
+{
+	struct vidtv_psi_desc_registration *desc;
+
+	desc = kzalloc(sizeof(*desc) + sizeof(format_id) + additional_info_len, GFP_KERNEL);
+	if (!desc)
+		return NULL;
+
+	desc->type = REGISTRATION_DESCRIPTOR;
+
+	desc->length = sizeof_field(struct vidtv_psi_desc_registration, format_id)
+		       + additional_info_len;
+
+	desc->format_id = format_id;
+
+	if (additional_ident_info && additional_info_len)
+		memcpy(desc->additional_identification_info,
+		       additional_ident_info,
+		       additional_info_len);
+
+	vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc);
+	return desc;
+}
+
+struct vidtv_psi_desc_network_name
+*vidtv_psi_network_name_desc_init(struct vidtv_psi_desc *head, char *network_name)
+{
+	u32 network_name_len = network_name ? strlen(network_name) : 0;
+	struct vidtv_psi_desc_network_name *desc;
+
+	desc = kzalloc_obj(*desc);
+	if (!desc)
+		return NULL;
+
+	desc->type = NETWORK_NAME_DESCRIPTOR;
+
+	desc->length = network_name_len;
+
+	if (network_name && network_name_len) {
+		desc->network_name = kstrdup(network_name, GFP_KERNEL);
+		if (!desc->network_name) {
+			kfree(desc);
+			return NULL;
+		}
+	}
+
+	vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc);
+	return desc;
+}
+
+struct vidtv_psi_desc_service_list
+*vidtv_psi_service_list_desc_init(struct vidtv_psi_desc *head,
+				  struct vidtv_psi_desc_service_list_entry *entry)
+{
+	struct vidtv_psi_desc_service_list_entry *curr_e = NULL;
+	struct vidtv_psi_desc_service_list_entry *head_e = NULL;
+	struct vidtv_psi_desc_service_list_entry *prev_e = NULL;
+	struct vidtv_psi_desc_service_list *desc;
+	u16 length = 0;
+
+	desc = kzalloc_obj(*desc);
+	if (!desc)
+		return NULL;
+
+	desc->type = SERVICE_LIST_DESCRIPTOR;
+
+	while (entry) {
+		curr_e = kzalloc_obj(*curr_e);
+		if (!curr_e) {
+			while (head_e) {
+				curr_e = head_e;
+				head_e = head_e->next;
+				kfree(curr_e);
+			}
+			kfree(desc);
+			return NULL;
+		}
+
+		curr_e->service_id = entry->service_id;
+		curr_e->service_type = entry->service_type;
+
+		length += sizeof(struct vidtv_psi_desc_service_list_entry) -
+			  sizeof(struct vidtv_psi_desc_service_list_entry *);
+
+		if (!head_e)
+			head_e = curr_e;
+		if (prev_e)
+			prev_e->next = curr_e;
+
+		prev_e = curr_e;
+		entry = entry->next;
+	}
+
+	desc->length = length;
+	desc->service_list = head_e;
+
+	vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc);
+	return desc;
+}
+
+struct vidtv_psi_desc_short_event
+*vidtv_psi_short_event_desc_init(struct vidtv_psi_desc *head,
+				 char *iso_language_code,
+				 char *event_name,
+				 char *text)
+{
+	u32 iso_len =  iso_language_code ? strlen(iso_language_code) : 0;
+	u32 event_name_len = event_name ? strlen(event_name) : 0;
+	struct vidtv_psi_desc_short_event *desc;
+	u32 text_len =  text ? strlen(text) : 0;
+
+	desc = kzalloc_obj(*desc);
+	if (!desc)
+		return NULL;
+
+	desc->type = SHORT_EVENT_DESCRIPTOR;
+
+	desc->length = ISO_LANGUAGE_CODE_LEN +
+		       sizeof_field(struct vidtv_psi_desc_short_event, event_name_len) +
+		       event_name_len +
+		       sizeof_field(struct vidtv_psi_desc_short_event, text_len) +
+		       text_len;
+
+	desc->event_name_len = event_name_len;
+	desc->text_len = text_len;
+
+	if (iso_len != ISO_LANGUAGE_CODE_LEN)
+		iso_language_code = "eng";
+
+	desc->iso_language_code = kstrdup(iso_language_code, GFP_KERNEL);
+	if (!desc->iso_language_code)
+		goto free_desc;
+
+	if (event_name && event_name_len) {
+		desc->event_name = kstrdup(event_name, GFP_KERNEL);
+		if (!desc->event_name)
+			goto free_desc_language_code;
+	}
+
+	if (text && text_len) {
+		desc->text = kstrdup(text, GFP_KERNEL);
+		if (!desc->text)
+			goto free_desc_event_name;
+	}
+
+	vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc);
+	return desc;
+
+free_desc_event_name:
+	if (event_name && event_name_len)
+		kfree(desc->event_name);
+free_desc_language_code:
+	kfree(desc->iso_language_code);
+free_desc:
+	kfree(desc);
+	return NULL;
+}
+
+struct vidtv_psi_desc *vidtv_psi_desc_clone(struct vidtv_psi_desc *desc)
+{
+	struct vidtv_psi_desc_network_name *desc_network_name;
+	struct vidtv_psi_desc_service_list *desc_service_list;
+	struct vidtv_psi_desc_short_event  *desc_short_event;
+	struct vidtv_psi_desc_service *service;
+	struct vidtv_psi_desc *head = NULL;
+	struct vidtv_psi_desc *prev = NULL;
+	struct vidtv_psi_desc *curr = NULL;
+
+	while (desc) {
+		switch (desc->type) {
+		case SERVICE_DESCRIPTOR:
+			service = (struct vidtv_psi_desc_service *)desc;
+			curr = (struct vidtv_psi_desc *)
+			       vidtv_psi_service_desc_init(head,
+							   service->service_type,
+							   service->service_name,
+							   service->provider_name);
+		break;
+
+		case NETWORK_NAME_DESCRIPTOR:
+			desc_network_name = (struct vidtv_psi_desc_network_name *)desc;
+			curr = (struct vidtv_psi_desc *)
+			       vidtv_psi_network_name_desc_init(head,
+								desc_network_name->network_name);
+		break;
+
+		case SERVICE_LIST_DESCRIPTOR:
+			desc_service_list = (struct vidtv_psi_desc_service_list *)desc;
+			curr = (struct vidtv_psi_desc *)
+			       vidtv_psi_service_list_desc_init(head,
+								desc_service_list->service_list);
+		break;
+
+		case SHORT_EVENT_DESCRIPTOR:
+			desc_short_event = (struct vidtv_psi_desc_short_event *)desc;
+			curr = (struct vidtv_psi_desc *)
+			       vidtv_psi_short_event_desc_init(head,
+							       desc_short_event->iso_language_code,
+							       desc_short_event->event_name,
+							       desc_short_event->text);
+		break;
+
+		case REGISTRATION_DESCRIPTOR:
+		default:
+			curr = kmemdup(desc, sizeof(*desc) + desc->length, GFP_KERNEL);
+			if (!curr)
+				return NULL;
+		}
+
+		if (!curr)
+			return NULL;
+
+		curr->next = NULL;
+		if (!head)
+			head = curr;
+		if (prev)
+			prev->next = curr;
+
+		prev = curr;
+		desc = desc->next;
+	}
+
+	return head;
+}
+
+void vidtv_psi_desc_destroy(struct vidtv_psi_desc *desc)
+{
+	struct vidtv_psi_desc_service_list_entry *sl_entry_tmp = NULL;
+	struct vidtv_psi_desc_service_list_entry *sl_entry = NULL;
+	struct vidtv_psi_desc *curr = desc;
+	struct vidtv_psi_desc *tmp  = NULL;
+
+	while (curr) {
+		tmp  = curr;
+		curr = curr->next;
+
+		switch (tmp->type) {
+		case SERVICE_DESCRIPTOR:
+			kfree(((struct vidtv_psi_desc_service *)tmp)->provider_name);
+			kfree(((struct vidtv_psi_desc_service *)tmp)->service_name);
+
+			break;
+		case REGISTRATION_DESCRIPTOR:
+			/* nothing to do */
+			break;
+
+		case NETWORK_NAME_DESCRIPTOR:
+			kfree(((struct vidtv_psi_desc_network_name *)tmp)->network_name);
+			break;
+
+		case SERVICE_LIST_DESCRIPTOR:
+			sl_entry = ((struct vidtv_psi_desc_service_list *)tmp)->service_list;
+			while (sl_entry) {
+				sl_entry_tmp = sl_entry;
+				sl_entry = sl_entry->next;
+				kfree(sl_entry_tmp);
+			}
+			break;
+
+		case SHORT_EVENT_DESCRIPTOR:
+			kfree(((struct vidtv_psi_desc_short_event *)tmp)->iso_language_code);
+			kfree(((struct vidtv_psi_desc_short_event *)tmp)->event_name);
+			kfree(((struct vidtv_psi_desc_short_event *)tmp)->text);
+		break;
+
+		default:
+			pr_warn_ratelimited("Possible leak: not handling descriptor type %d\n",
+					    tmp->type);
+			break;
+		}
+
+		kfree(tmp);
+	}
+}
+
+static u16
+vidtv_psi_desc_comp_loop_len(struct vidtv_psi_desc *desc)
+{
+	u32 length = 0;
+
+	if (!desc)
+		return 0;
+
+	while (desc) {
+		length += sizeof_field(struct vidtv_psi_desc, type);
+		length += sizeof_field(struct vidtv_psi_desc, length);
+		length += desc->length; /* from 'length' field until the end of the descriptor */
+		desc    = desc->next;
+	}
+
+	return length;
+}
+
+void vidtv_psi_desc_assign(struct vidtv_psi_desc **to,
+			   struct vidtv_psi_desc *desc)
+{
+	if (desc == *to)
+		return;
+
+	if (*to)
+		vidtv_psi_desc_destroy(*to);
+
+	*to = desc;
+}
+
+void vidtv_pmt_desc_assign(struct vidtv_psi_table_pmt *pmt,
+			   struct vidtv_psi_desc **to,
+			   struct vidtv_psi_desc *desc)
+{
+	vidtv_psi_desc_assign(to, desc);
+	vidtv_psi_pmt_table_update_sec_len(pmt);
+
+	if (vidtv_psi_get_sec_len(&pmt->header) > MAX_SECTION_LEN)
+		vidtv_psi_desc_assign(to, NULL);
+
+	vidtv_psi_update_version_num(&pmt->header);
+}
+
+void vidtv_sdt_desc_assign(struct vidtv_psi_table_sdt *sdt,
+			   struct vidtv_psi_desc **to,
+			   struct vidtv_psi_desc *desc)
+{
+	vidtv_psi_desc_assign(to, desc);
+	vidtv_psi_sdt_table_update_sec_len(sdt);
+
+	if (vidtv_psi_get_sec_len(&sdt->header) > MAX_SECTION_LEN)
+		vidtv_psi_desc_assign(to, NULL);
+
+	vidtv_psi_update_version_num(&sdt->header);
+}
+
+static u32 vidtv_psi_desc_write_into(struct desc_write_args *args)
+{
+	struct psi_write_args psi_args = {
+		.dest_buf           = args->dest_buf,
+		.from               = &args->desc->type,
+		.pid                = args->pid,
+		.new_psi_section    = false,
+		.continuity_counter = args->continuity_counter,
+		.is_crc             = false,
+		.dest_buf_sz        = args->dest_buf_sz,
+		.crc                = args->crc,
+		.len		    = sizeof_field(struct vidtv_psi_desc, type) +
+				      sizeof_field(struct vidtv_psi_desc, length),
+	};
+	struct vidtv_psi_desc_service_list_entry *serv_list_entry = NULL;
+	u32 nbytes = 0;
+
+	psi_args.dest_offset        = args->dest_offset + nbytes;
+
+	nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+	switch (args->desc->type) {
+	case SERVICE_DESCRIPTOR:
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = sizeof_field(struct vidtv_psi_desc_service, service_type) +
+			       sizeof_field(struct vidtv_psi_desc_service, provider_name_len);
+		psi_args.from = &((struct vidtv_psi_desc_service *)args->desc)->service_type;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = ((struct vidtv_psi_desc_service *)args->desc)->provider_name_len;
+		psi_args.from = ((struct vidtv_psi_desc_service *)args->desc)->provider_name;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = sizeof_field(struct vidtv_psi_desc_service, service_name_len);
+		psi_args.from = &((struct vidtv_psi_desc_service *)args->desc)->service_name_len;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = ((struct vidtv_psi_desc_service *)args->desc)->service_name_len;
+		psi_args.from = ((struct vidtv_psi_desc_service *)args->desc)->service_name;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+		break;
+
+	case NETWORK_NAME_DESCRIPTOR:
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = args->desc->length;
+		psi_args.from = ((struct vidtv_psi_desc_network_name *)args->desc)->network_name;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+		break;
+
+	case SERVICE_LIST_DESCRIPTOR:
+		serv_list_entry = ((struct vidtv_psi_desc_service_list *)args->desc)->service_list;
+		while (serv_list_entry) {
+			psi_args.dest_offset = args->dest_offset + nbytes;
+			psi_args.len = sizeof(struct vidtv_psi_desc_service_list_entry) -
+				       sizeof(struct vidtv_psi_desc_service_list_entry *);
+			psi_args.from = serv_list_entry;
+
+			nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+			serv_list_entry = serv_list_entry->next;
+		}
+		break;
+
+	case SHORT_EVENT_DESCRIPTOR:
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = ISO_LANGUAGE_CODE_LEN;
+		psi_args.from = ((struct vidtv_psi_desc_short_event *)
+				  args->desc)->iso_language_code;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = sizeof_field(struct vidtv_psi_desc_short_event, event_name_len);
+		psi_args.from = &((struct vidtv_psi_desc_short_event *)
+				  args->desc)->event_name_len;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = ((struct vidtv_psi_desc_short_event *)args->desc)->event_name_len;
+		psi_args.from = ((struct vidtv_psi_desc_short_event *)args->desc)->event_name;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = sizeof_field(struct vidtv_psi_desc_short_event, text_len);
+		psi_args.from = &((struct vidtv_psi_desc_short_event *)args->desc)->text_len;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = ((struct vidtv_psi_desc_short_event *)args->desc)->text_len;
+		psi_args.from = ((struct vidtv_psi_desc_short_event *)args->desc)->text;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		break;
+
+	case REGISTRATION_DESCRIPTOR:
+	default:
+		psi_args.dest_offset = args->dest_offset + nbytes;
+		psi_args.len = args->desc->length;
+		psi_args.from = &args->desc->data;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+		break;
+	}
+
+	return nbytes;
+}
+
+static u32
+vidtv_psi_table_header_write_into(struct header_write_args *args)
+{
+	struct psi_write_args psi_args = {
+		.dest_buf           = args->dest_buf,
+		.from               = args->h,
+		.len                = sizeof(struct vidtv_psi_table_header),
+		.dest_offset        = args->dest_offset,
+		.pid                = args->pid,
+		.new_psi_section    = true,
+		.continuity_counter = args->continuity_counter,
+		.is_crc             = false,
+		.dest_buf_sz        = args->dest_buf_sz,
+		.crc                = args->crc,
+	};
+
+	return vidtv_psi_ts_psi_write_into(&psi_args);
+}
+
+void
+vidtv_psi_pat_table_update_sec_len(struct vidtv_psi_table_pat *pat)
+{
+	u16 length = 0;
+	u32 i;
+
+	/* see ISO/IEC 13818-1 : 2000 p.43 */
+
+	/* from immediately after 'section_length' until 'last_section_number'*/
+	length += PAT_LEN_UNTIL_LAST_SECTION_NUMBER;
+
+	/* do not count the pointer */
+	for (i = 0; i < pat->num_pat; ++i)
+		length += sizeof(struct vidtv_psi_table_pat_program) -
+			  sizeof(struct vidtv_psi_table_pat_program *);
+
+	length += CRC_SIZE_IN_BYTES;
+
+	vidtv_psi_set_sec_len(&pat->header, length);
+}
+
+void vidtv_psi_pmt_table_update_sec_len(struct vidtv_psi_table_pmt *pmt)
+{
+	struct vidtv_psi_table_pmt_stream *s = pmt->stream;
+	u16 desc_loop_len;
+	u16 length = 0;
+
+	/* see ISO/IEC 13818-1 : 2000 p.46 */
+
+	/* from immediately after 'section_length' until 'program_info_length'*/
+	length += PMT_LEN_UNTIL_PROGRAM_INFO_LENGTH;
+
+	desc_loop_len = vidtv_psi_desc_comp_loop_len(pmt->descriptor);
+	vidtv_psi_set_desc_loop_len(&pmt->bitfield2, desc_loop_len, 10);
+
+	length += desc_loop_len;
+
+	while (s) {
+		/* skip both pointers at the end */
+		length += sizeof(struct vidtv_psi_table_pmt_stream) -
+			  sizeof(struct vidtv_psi_desc *) -
+			  sizeof(struct vidtv_psi_table_pmt_stream *);
+
+		desc_loop_len = vidtv_psi_desc_comp_loop_len(s->descriptor);
+		vidtv_psi_set_desc_loop_len(&s->bitfield2, desc_loop_len, 10);
+
+		length += desc_loop_len;
+
+		s = s->next;
+	}
+
+	length += CRC_SIZE_IN_BYTES;
+
+	vidtv_psi_set_sec_len(&pmt->header, length);
+}
+
+void vidtv_psi_sdt_table_update_sec_len(struct vidtv_psi_table_sdt *sdt)
+{
+	struct vidtv_psi_table_sdt_service *s = sdt->service;
+	u16 desc_loop_len;
+	u16 length = 0;
+
+	/* see ETSI EN 300 468 V 1.10.1 p.24 */
+
+	/*
+	 * from immediately after 'section_length' until
+	 * 'reserved_for_future_use'
+	 */
+	length += SDT_LEN_UNTIL_RESERVED_FOR_FUTURE_USE;
+
+	while (s) {
+		/* skip both pointers at the end */
+		length += sizeof(struct vidtv_psi_table_sdt_service) -
+			  sizeof(struct vidtv_psi_desc *) -
+			  sizeof(struct vidtv_psi_table_sdt_service *);
+
+		desc_loop_len = vidtv_psi_desc_comp_loop_len(s->descriptor);
+		vidtv_psi_set_desc_loop_len(&s->bitfield, desc_loop_len, 12);
+
+		length += desc_loop_len;
+
+		s = s->next;
+	}
+
+	length += CRC_SIZE_IN_BYTES;
+	vidtv_psi_set_sec_len(&sdt->header, length);
+}
+
+struct vidtv_psi_table_pat_program*
+vidtv_psi_pat_program_init(struct vidtv_psi_table_pat_program *head,
+			   u16 service_id,
+			   u16 program_map_pid)
+{
+	struct vidtv_psi_table_pat_program *program;
+	const u16 RESERVED = 0x07;
+
+	program = kzalloc_obj(*program);
+	if (!program)
+		return NULL;
+
+	program->service_id = cpu_to_be16(service_id);
+
+	/* pid for the PMT section in the TS */
+	program->bitfield = cpu_to_be16((RESERVED << 13) | program_map_pid);
+	program->next = NULL;
+
+	if (head) {
+		while (head->next)
+			head = head->next;
+
+		head->next = program;
+	}
+
+	return program;
+}
+
+void
+vidtv_psi_pat_program_destroy(struct vidtv_psi_table_pat_program *p)
+{
+	struct vidtv_psi_table_pat_program *tmp  = NULL;
+	struct vidtv_psi_table_pat_program *curr = p;
+
+	while (curr) {
+		tmp  = curr;
+		curr = curr->next;
+		kfree(tmp);
+	}
+}
+
+/* This function transfers ownership of p to the table */
+void
+vidtv_psi_pat_program_assign(struct vidtv_psi_table_pat *pat,
+			     struct vidtv_psi_table_pat_program *p)
+{
+	struct vidtv_psi_table_pat_program *program;
+	u16 program_count;
+
+	do {
+		program_count = 0;
+		program = p;
+
+		if (p == pat->program)
+			return;
+
+		while (program) {
+			++program_count;
+			program = program->next;
+		}
+
+		pat->num_pat = program_count;
+		pat->program  = p;
+
+		/* Recompute section length */
+		vidtv_psi_pat_table_update_sec_len(pat);
+
+		p = NULL;
+	} while (vidtv_psi_get_sec_len(&pat->header) > MAX_SECTION_LEN);
+
+	vidtv_psi_update_version_num(&pat->header);
+}
+
+struct vidtv_psi_table_pat *vidtv_psi_pat_table_init(u16 transport_stream_id)
+{
+	struct vidtv_psi_table_pat *pat;
+	const u16 SYNTAX = 0x1;
+	const u16 ZERO = 0x0;
+	const u16 ONES = 0x03;
+
+	pat = kzalloc_obj(*pat);
+	if (!pat)
+		return NULL;
+
+	pat->header.table_id = 0x0;
+
+	pat->header.bitfield = cpu_to_be16((SYNTAX << 15) | (ZERO << 14) | (ONES << 12));
+	pat->header.id           = cpu_to_be16(transport_stream_id);
+	pat->header.current_next = 0x1;
+
+	pat->header.version = 0x1f;
+
+	pat->header.one2         = 0x03;
+	pat->header.section_id   = 0x0;
+	pat->header.last_section = 0x0;
+
+	vidtv_psi_pat_table_update_sec_len(pat);
+
+	return pat;
+}
+
+u32 vidtv_psi_pat_write_into(struct vidtv_psi_pat_write_args *args)
+{
+	struct vidtv_psi_table_pat_program *p = args->pat->program;
+	struct header_write_args h_args       = {
+		.dest_buf           = args->buf,
+		.dest_offset        = args->offset,
+		.pid                = VIDTV_PAT_PID,
+		.h                  = &args->pat->header,
+		.continuity_counter = args->continuity_counter,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct psi_write_args psi_args        = {
+		.dest_buf           = args->buf,
+		.pid                = VIDTV_PAT_PID,
+		.new_psi_section    = false,
+		.continuity_counter = args->continuity_counter,
+		.is_crc             = false,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct crc32_write_args c_args        = {
+		.dest_buf           = args->buf,
+		.pid                = VIDTV_PAT_PID,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	u32 crc = INITIAL_CRC;
+	u32 nbytes = 0;
+
+	vidtv_psi_pat_table_update_sec_len(args->pat);
+
+	h_args.crc = &crc;
+
+	nbytes += vidtv_psi_table_header_write_into(&h_args);
+
+	/* note that the field 'u16 programs' is not really part of the PAT */
+
+	psi_args.crc = &crc;
+
+	while (p) {
+		/* copy the PAT programs */
+		psi_args.from = p;
+		/* skip the pointer */
+		psi_args.len = sizeof(*p) -
+			       sizeof(struct vidtv_psi_table_pat_program *);
+		psi_args.dest_offset = args->offset + nbytes;
+		psi_args.continuity_counter = args->continuity_counter;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		p = p->next;
+	}
+
+	c_args.dest_offset        = args->offset + nbytes;
+	c_args.continuity_counter = args->continuity_counter;
+	c_args.crc                = cpu_to_be32(crc);
+
+	/* Write the CRC32 at the end */
+	nbytes += table_section_crc32_write_into(&c_args);
+
+	return nbytes;
+}
+
+void
+vidtv_psi_pat_table_destroy(struct vidtv_psi_table_pat *p)
+{
+	vidtv_psi_pat_program_destroy(p->program);
+	kfree(p);
+}
+
+struct vidtv_psi_table_pmt_stream*
+vidtv_psi_pmt_stream_init(struct vidtv_psi_table_pmt_stream *head,
+			  enum vidtv_psi_stream_types stream_type,
+			  u16 es_pid)
+{
+	struct vidtv_psi_table_pmt_stream *stream;
+	const u16 RESERVED1 = 0x07;
+	const u16 RESERVED2 = 0x0f;
+	const u16 ZERO = 0x0;
+	u16 desc_loop_len;
+
+	stream = kzalloc_obj(*stream);
+	if (!stream)
+		return NULL;
+
+	stream->type = stream_type;
+
+	stream->bitfield = cpu_to_be16((RESERVED1 << 13) | es_pid);
+
+	desc_loop_len = vidtv_psi_desc_comp_loop_len(stream->descriptor);
+
+	stream->bitfield2 = cpu_to_be16((RESERVED2 << 12) |
+					(ZERO << 10)      |
+					desc_loop_len);
+	stream->next = NULL;
+
+	if (head) {
+		while (head->next)
+			head = head->next;
+
+		head->next = stream;
+	}
+
+	return stream;
+}
+
+void vidtv_psi_pmt_stream_destroy(struct vidtv_psi_table_pmt_stream *s)
+{
+	struct vidtv_psi_table_pmt_stream *tmp_stream  = NULL;
+	struct vidtv_psi_table_pmt_stream *curr_stream = s;
+
+	while (curr_stream) {
+		tmp_stream  = curr_stream;
+		curr_stream = curr_stream->next;
+		vidtv_psi_desc_destroy(tmp_stream->descriptor);
+		kfree(tmp_stream);
+	}
+}
+
+void vidtv_psi_pmt_stream_assign(struct vidtv_psi_table_pmt *pmt,
+				 struct vidtv_psi_table_pmt_stream *s)
+{
+	do {
+		/* This function transfers ownership of s to the table */
+		if (s == pmt->stream)
+			return;
+
+		pmt->stream = s;
+		vidtv_psi_pmt_table_update_sec_len(pmt);
+
+		s = NULL;
+	} while (vidtv_psi_get_sec_len(&pmt->header) > MAX_SECTION_LEN);
+
+	vidtv_psi_update_version_num(&pmt->header);
+}
+
+u16 vidtv_psi_pmt_get_pid(struct vidtv_psi_table_pmt *section,
+			  struct vidtv_psi_table_pat *pat)
+{
+	struct vidtv_psi_table_pat_program *program = pat->program;
+
+	/*
+	 * service_id is the same as program_number in the
+	 * corresponding program_map_section
+	 * see ETSI EN 300 468 v1.15.1 p. 24
+	 */
+	while (program) {
+		if (program->service_id == section->header.id)
+			return vidtv_psi_get_pat_program_pid(program);
+
+		program = program->next;
+	}
+
+	return TS_LAST_VALID_PID + 1; /* not found */
+}
+
+struct vidtv_psi_table_pmt *vidtv_psi_pmt_table_init(u16 program_number,
+						     u16 pcr_pid)
+{
+	struct vidtv_psi_table_pmt *pmt;
+	const u16 RESERVED1 = 0x07;
+	const u16 RESERVED2 = 0x0f;
+	const u16 SYNTAX = 0x1;
+	const u16 ONES = 0x03;
+	const u16 ZERO = 0x0;
+	u16 desc_loop_len;
+
+	pmt = kzalloc_obj(*pmt);
+	if (!pmt)
+		return NULL;
+
+	if (!pcr_pid)
+		pcr_pid = 0x1fff;
+
+	pmt->header.table_id = 0x2;
+
+	pmt->header.bitfield = cpu_to_be16((SYNTAX << 15) | (ZERO << 14) | (ONES << 12));
+
+	pmt->header.id = cpu_to_be16(program_number);
+	pmt->header.current_next = 0x1;
+
+	pmt->header.version = 0x1f;
+
+	pmt->header.one2 = ONES;
+	pmt->header.section_id   = 0;
+	pmt->header.last_section = 0;
+
+	pmt->bitfield = cpu_to_be16((RESERVED1 << 13) | pcr_pid);
+
+	desc_loop_len = vidtv_psi_desc_comp_loop_len(pmt->descriptor);
+
+	pmt->bitfield2 = cpu_to_be16((RESERVED2 << 12) |
+				     (ZERO << 10)      |
+				     desc_loop_len);
+
+	vidtv_psi_pmt_table_update_sec_len(pmt);
+
+	return pmt;
+}
+
+u32 vidtv_psi_pmt_write_into(struct vidtv_psi_pmt_write_args *args)
+{
+	struct vidtv_psi_desc *table_descriptor   = args->pmt->descriptor;
+	struct vidtv_psi_table_pmt_stream *stream = args->pmt->stream;
+	struct vidtv_psi_desc *stream_descriptor;
+	u32 crc = INITIAL_CRC;
+	u32 nbytes = 0;
+	struct header_write_args h_args = {
+		.dest_buf           = args->buf,
+		.dest_offset        = args->offset,
+		.h                  = &args->pmt->header,
+		.pid                = args->pid,
+		.continuity_counter = args->continuity_counter,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct psi_write_args psi_args  = {
+		.dest_buf = args->buf,
+		.from     = &args->pmt->bitfield,
+		.len      = sizeof_field(struct vidtv_psi_table_pmt, bitfield) +
+			    sizeof_field(struct vidtv_psi_table_pmt, bitfield2),
+		.pid                = args->pid,
+		.new_psi_section    = false,
+		.is_crc             = false,
+		.dest_buf_sz        = args->buf_sz,
+		.crc                = &crc,
+	};
+	struct desc_write_args d_args   = {
+		.dest_buf           = args->buf,
+		.desc               = table_descriptor,
+		.pid                = args->pid,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct crc32_write_args c_args  = {
+		.dest_buf           = args->buf,
+		.pid                = args->pid,
+		.dest_buf_sz        = args->buf_sz,
+	};
+
+	vidtv_psi_pmt_table_update_sec_len(args->pmt);
+
+	h_args.crc                = &crc;
+
+	nbytes += vidtv_psi_table_header_write_into(&h_args);
+
+	/* write the two bitfields */
+	psi_args.dest_offset        = args->offset + nbytes;
+	psi_args.continuity_counter = args->continuity_counter;
+	nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+	while (table_descriptor) {
+		/* write the descriptors, if any */
+		d_args.dest_offset        = args->offset + nbytes;
+		d_args.continuity_counter = args->continuity_counter;
+		d_args.crc                = &crc;
+
+		nbytes += vidtv_psi_desc_write_into(&d_args);
+
+		table_descriptor = table_descriptor->next;
+	}
+
+	psi_args.len += sizeof_field(struct vidtv_psi_table_pmt_stream, type);
+	while (stream) {
+		/* write the streams, if any */
+		psi_args.from = stream;
+		psi_args.dest_offset = args->offset + nbytes;
+		psi_args.continuity_counter = args->continuity_counter;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		stream_descriptor = stream->descriptor;
+
+		while (stream_descriptor) {
+			/* write the stream descriptors, if any */
+			d_args.dest_offset        = args->offset + nbytes;
+			d_args.desc               = stream_descriptor;
+			d_args.continuity_counter = args->continuity_counter;
+			d_args.crc                = &crc;
+
+			nbytes += vidtv_psi_desc_write_into(&d_args);
+
+			stream_descriptor = stream_descriptor->next;
+		}
+
+		stream = stream->next;
+	}
+
+	c_args.dest_offset        = args->offset + nbytes;
+	c_args.crc                = cpu_to_be32(crc);
+	c_args.continuity_counter = args->continuity_counter;
+
+	/* Write the CRC32 at the end */
+	nbytes += table_section_crc32_write_into(&c_args);
+
+	return nbytes;
+}
+
+void vidtv_psi_pmt_table_destroy(struct vidtv_psi_table_pmt *pmt)
+{
+	vidtv_psi_desc_destroy(pmt->descriptor);
+	vidtv_psi_pmt_stream_destroy(pmt->stream);
+	kfree(pmt);
+}
+
+struct vidtv_psi_table_sdt *vidtv_psi_sdt_table_init(u16 network_id,
+						     u16 transport_stream_id)
+{
+	struct vidtv_psi_table_sdt *sdt;
+	const u16 RESERVED = 0xff;
+	const u16 SYNTAX = 0x1;
+	const u16 ONES = 0x03;
+	const u16 ONE = 0x1;
+
+	sdt = kzalloc_obj(*sdt);
+	if (!sdt)
+		return NULL;
+
+	sdt->header.table_id = 0x42;
+	sdt->header.bitfield = cpu_to_be16((SYNTAX << 15) | (ONE << 14) | (ONES << 12));
+
+	/*
+	 * This is a 16-bit field which serves as a label for identification
+	 * of the TS, about which the SDT informs, from any other multiplex
+	 * within the delivery system.
+	 */
+	sdt->header.id = cpu_to_be16(transport_stream_id);
+	sdt->header.current_next = ONE;
+
+	sdt->header.version = 0x1f;
+
+	sdt->header.one2  = ONES;
+	sdt->header.section_id   = 0;
+	sdt->header.last_section = 0;
+
+	/*
+	 * FIXME: The network_id range from 0xFF01 to 0xFFFF is used to
+	 * indicate temporary private use. For now, let's use the first
+	 * value.
+	 * This can be changed to something more useful, when support for
+	 * NIT gets added
+	 */
+	sdt->network_id = cpu_to_be16(network_id);
+	sdt->reserved = RESERVED;
+
+	vidtv_psi_sdt_table_update_sec_len(sdt);
+
+	return sdt;
+}
+
+u32 vidtv_psi_sdt_write_into(struct vidtv_psi_sdt_write_args *args)
+{
+	struct header_write_args h_args = {
+		.dest_buf           = args->buf,
+		.dest_offset        = args->offset,
+		.h                  = &args->sdt->header,
+		.pid                = VIDTV_SDT_PID,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct psi_write_args psi_args  = {
+		.dest_buf = args->buf,
+		.len = sizeof_field(struct vidtv_psi_table_sdt, network_id) +
+		       sizeof_field(struct vidtv_psi_table_sdt, reserved),
+		.pid                = VIDTV_SDT_PID,
+		.new_psi_section    = false,
+		.is_crc             = false,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct desc_write_args d_args   = {
+		.dest_buf           = args->buf,
+		.pid                = VIDTV_SDT_PID,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct crc32_write_args c_args  = {
+		.dest_buf           = args->buf,
+		.pid                = VIDTV_SDT_PID,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct vidtv_psi_table_sdt_service *service = args->sdt->service;
+	struct vidtv_psi_desc *service_desc;
+	u32 nbytes  = 0;
+	u32 crc = INITIAL_CRC;
+
+	/* see ETSI EN 300 468 v1.15.1 p. 11 */
+
+	vidtv_psi_sdt_table_update_sec_len(args->sdt);
+
+	h_args.continuity_counter = args->continuity_counter;
+	h_args.crc                = &crc;
+
+	nbytes += vidtv_psi_table_header_write_into(&h_args);
+
+	psi_args.from               = &args->sdt->network_id;
+	psi_args.dest_offset        = args->offset + nbytes;
+	psi_args.continuity_counter = args->continuity_counter;
+	psi_args.crc                = &crc;
+
+	/* copy u16 network_id + u8 reserved)*/
+	nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+	/* skip both pointers at the end */
+	psi_args.len = sizeof(struct vidtv_psi_table_sdt_service) -
+		       sizeof(struct vidtv_psi_desc *) -
+		       sizeof(struct vidtv_psi_table_sdt_service *);
+
+	while (service) {
+		/* copy the services, if any */
+		psi_args.from = service;
+		psi_args.dest_offset = args->offset + nbytes;
+		psi_args.continuity_counter = args->continuity_counter;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		service_desc = service->descriptor;
+
+		while (service_desc) {
+			/* copy the service descriptors, if any */
+			d_args.dest_offset        = args->offset + nbytes;
+			d_args.desc               = service_desc;
+			d_args.continuity_counter = args->continuity_counter;
+			d_args.crc                = &crc;
+
+			nbytes += vidtv_psi_desc_write_into(&d_args);
+
+			service_desc = service_desc->next;
+		}
+
+		service = service->next;
+	}
+
+	c_args.dest_offset        = args->offset + nbytes;
+	c_args.crc                = cpu_to_be32(crc);
+	c_args.continuity_counter = args->continuity_counter;
+
+	/* Write the CRC at the end */
+	nbytes += table_section_crc32_write_into(&c_args);
+
+	return nbytes;
+}
+
+void vidtv_psi_sdt_table_destroy(struct vidtv_psi_table_sdt *sdt)
+{
+	vidtv_psi_sdt_service_destroy(sdt->service);
+	kfree(sdt);
+}
+
+struct vidtv_psi_table_sdt_service
+*vidtv_psi_sdt_service_init(struct vidtv_psi_table_sdt_service *head,
+			    u16 service_id,
+			    bool eit_schedule,
+			    bool eit_present_following)
+{
+	struct vidtv_psi_table_sdt_service *service;
+
+	service = kzalloc_obj(*service);
+	if (!service)
+		return NULL;
+
+	/*
+	 * ETSI 300 468: this is a 16bit field which serves as a label to
+	 * identify this service from any other service within the TS.
+	 * The service id is the same as the program number in the
+	 * corresponding program_map_section
+	 */
+	service->service_id            = cpu_to_be16(service_id);
+	service->EIT_schedule          = eit_schedule;
+	service->EIT_present_following = eit_present_following;
+	service->reserved              = 0x3f;
+
+	service->bitfield = cpu_to_be16(RUNNING << 13);
+
+	if (head) {
+		while (head->next)
+			head = head->next;
+
+		head->next = service;
+	}
+
+	return service;
+}
+
+void
+vidtv_psi_sdt_service_destroy(struct vidtv_psi_table_sdt_service *service)
+{
+	struct vidtv_psi_table_sdt_service *curr = service;
+	struct vidtv_psi_table_sdt_service *tmp  = NULL;
+
+	while (curr) {
+		tmp  = curr;
+		curr = curr->next;
+		vidtv_psi_desc_destroy(tmp->descriptor);
+		kfree(tmp);
+	}
+}
+
+void
+vidtv_psi_sdt_service_assign(struct vidtv_psi_table_sdt *sdt,
+			     struct vidtv_psi_table_sdt_service *service)
+{
+	do {
+		if (service == sdt->service)
+			return;
+
+		sdt->service = service;
+
+		/* recompute section length */
+		vidtv_psi_sdt_table_update_sec_len(sdt);
+
+		service = NULL;
+	} while (vidtv_psi_get_sec_len(&sdt->header) > MAX_SECTION_LEN);
+
+	vidtv_psi_update_version_num(&sdt->header);
+}
+
+/*
+ * PMTs contain information about programs. For each program,
+ * there is one PMT section. This function will create a section
+ * for each program found in the PAT
+ */
+struct vidtv_psi_table_pmt**
+vidtv_psi_pmt_create_sec_for_each_pat_entry(struct vidtv_psi_table_pat *pat,
+					    u16 pcr_pid)
+
+{
+	struct vidtv_psi_table_pat_program *program;
+	struct vidtv_psi_table_pmt **pmt_secs;
+	u32 i = 0, num_pmt = 0;
+
+	/*
+	 * The number of PMT entries is the number of PAT entries
+	 * that contain service_id. That exclude special tables, like NIT
+	 */
+	program = pat->program;
+	while (program) {
+		if (program->service_id)
+			num_pmt++;
+		program = program->next;
+	}
+
+	pmt_secs = kzalloc_objs(struct vidtv_psi_table_pmt *, num_pmt);
+	if (!pmt_secs)
+		return NULL;
+
+	for (program = pat->program; program; program = program->next) {
+		if (!program->service_id)
+			continue;
+		pmt_secs[i] = vidtv_psi_pmt_table_init(be16_to_cpu(program->service_id),
+						       pcr_pid);
+
+		if (!pmt_secs[i]) {
+			while (i > 0) {
+				i--;
+				vidtv_psi_pmt_table_destroy(pmt_secs[i]);
+			}
+			return NULL;
+		}
+		i++;
+	}
+	pat->num_pmt = num_pmt;
+
+	return pmt_secs;
+}
+
+/* find the PMT section associated with 'program_num' */
+struct vidtv_psi_table_pmt
+*vidtv_psi_find_pmt_sec(struct vidtv_psi_table_pmt **pmt_sections,
+			u16 nsections,
+			u16 program_num)
+{
+	struct vidtv_psi_table_pmt *sec = NULL;
+	u32 i;
+
+	for (i = 0; i < nsections; ++i) {
+		sec = pmt_sections[i];
+		if (be16_to_cpu(sec->header.id) == program_num)
+			return sec;
+	}
+
+	return NULL; /* not found */
+}
+
+static void vidtv_psi_nit_table_update_sec_len(struct vidtv_psi_table_nit *nit)
+{
+	u16 length = 0;
+	struct vidtv_psi_table_transport *t = nit->transport;
+	u16 desc_loop_len;
+	u16 transport_loop_len = 0;
+
+	/*
+	 * from immediately after 'section_length' until
+	 * 'network_descriptor_length'
+	 */
+	length += NIT_LEN_UNTIL_NETWORK_DESCRIPTOR_LEN;
+
+	desc_loop_len = vidtv_psi_desc_comp_loop_len(nit->descriptor);
+	vidtv_psi_set_desc_loop_len(&nit->bitfield, desc_loop_len, 12);
+
+	length += desc_loop_len;
+
+	length += sizeof_field(struct vidtv_psi_table_nit, bitfield2);
+
+	while (t) {
+		/* skip both pointers at the end */
+		transport_loop_len += sizeof(struct vidtv_psi_table_transport) -
+				      sizeof(struct vidtv_psi_desc *) -
+				      sizeof(struct vidtv_psi_table_transport *);
+
+		length += transport_loop_len;
+
+		desc_loop_len = vidtv_psi_desc_comp_loop_len(t->descriptor);
+		vidtv_psi_set_desc_loop_len(&t->bitfield, desc_loop_len, 12);
+
+		length += desc_loop_len;
+
+		t = t->next;
+	}
+
+	// Actually sets the transport stream loop len, maybe rename this function later
+	vidtv_psi_set_desc_loop_len(&nit->bitfield2, transport_loop_len, 12);
+	length += CRC_SIZE_IN_BYTES;
+
+	vidtv_psi_set_sec_len(&nit->header, length);
+}
+
+struct vidtv_psi_table_nit
+*vidtv_psi_nit_table_init(u16 network_id,
+			  u16 transport_stream_id,
+			  char *network_name,
+			  struct vidtv_psi_desc_service_list_entry *service_list)
+{
+	struct vidtv_psi_table_transport *transport;
+	struct vidtv_psi_table_nit *nit;
+	const u16 SYNTAX = 0x1;
+	const u16 ONES = 0x03;
+	const u16 ONE = 0x1;
+
+	nit = kzalloc_obj(*nit);
+	if (!nit)
+		return NULL;
+
+	transport = kzalloc_obj(*transport);
+	if (!transport)
+		goto free_nit;
+
+	nit->header.table_id = 0x40; // ACTUAL_NETWORK
+
+	nit->header.bitfield = cpu_to_be16((SYNTAX << 15) | (ONE << 14) | (ONES << 12));
+
+	nit->header.id = cpu_to_be16(network_id);
+	nit->header.current_next = ONE;
+
+	nit->header.version = 0x1f;
+
+	nit->header.one2  = ONES;
+	nit->header.section_id   = 0;
+	nit->header.last_section = 0;
+
+	nit->bitfield = cpu_to_be16(0xf);
+	nit->bitfield2 = cpu_to_be16(0xf);
+
+	nit->descriptor = (struct vidtv_psi_desc *)
+			  vidtv_psi_network_name_desc_init(NULL, network_name);
+	if (!nit->descriptor)
+		goto free_transport;
+
+	transport->transport_id = cpu_to_be16(transport_stream_id);
+	transport->network_id = cpu_to_be16(network_id);
+	transport->bitfield = cpu_to_be16(0xf);
+	transport->descriptor = (struct vidtv_psi_desc *)
+				vidtv_psi_service_list_desc_init(NULL, service_list);
+	if (!transport->descriptor)
+		goto free_nit_desc;
+
+	nit->transport = transport;
+
+	vidtv_psi_nit_table_update_sec_len(nit);
+
+	return nit;
+
+free_nit_desc:
+	vidtv_psi_desc_destroy((struct vidtv_psi_desc *)nit->descriptor);
+
+free_transport:
+	kfree(transport);
+free_nit:
+	kfree(nit);
+	return NULL;
+}
+
+u32 vidtv_psi_nit_write_into(struct vidtv_psi_nit_write_args *args)
+{
+	struct header_write_args h_args = {
+		.dest_buf           = args->buf,
+		.dest_offset        = args->offset,
+		.h                  = &args->nit->header,
+		.pid                = VIDTV_NIT_PID,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct psi_write_args psi_args  = {
+		.dest_buf           = args->buf,
+		.from               = &args->nit->bitfield,
+		.len                = sizeof_field(struct vidtv_psi_table_nit, bitfield),
+		.pid                = VIDTV_NIT_PID,
+		.new_psi_section    = false,
+		.is_crc             = false,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct desc_write_args d_args   = {
+		.dest_buf           = args->buf,
+		.pid                = VIDTV_NIT_PID,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct crc32_write_args c_args  = {
+		.dest_buf           = args->buf,
+		.pid                = VIDTV_NIT_PID,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct vidtv_psi_desc *table_descriptor     = args->nit->descriptor;
+	struct vidtv_psi_table_transport *transport = args->nit->transport;
+	struct vidtv_psi_desc *transport_descriptor;
+	u32 crc = INITIAL_CRC;
+	u32 nbytes = 0;
+
+	vidtv_psi_nit_table_update_sec_len(args->nit);
+
+	h_args.continuity_counter = args->continuity_counter;
+	h_args.crc                = &crc;
+
+	nbytes += vidtv_psi_table_header_write_into(&h_args);
+
+	/* write the bitfield */
+
+	psi_args.dest_offset        = args->offset + nbytes;
+	psi_args.continuity_counter = args->continuity_counter;
+	psi_args.crc                = &crc;
+
+	nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+	while (table_descriptor) {
+		/* write the descriptors, if any */
+		d_args.dest_offset        = args->offset + nbytes;
+		d_args.desc               = table_descriptor;
+		d_args.continuity_counter = args->continuity_counter;
+		d_args.crc                = &crc;
+
+		nbytes += vidtv_psi_desc_write_into(&d_args);
+
+		table_descriptor = table_descriptor->next;
+	}
+
+	/* write the second bitfield */
+	psi_args.from = &args->nit->bitfield2;
+	psi_args.len = sizeof_field(struct vidtv_psi_table_nit, bitfield2);
+	psi_args.dest_offset = args->offset + nbytes;
+
+	nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+	psi_args.len  = sizeof_field(struct vidtv_psi_table_transport, transport_id) +
+			sizeof_field(struct vidtv_psi_table_transport, network_id)   +
+			sizeof_field(struct vidtv_psi_table_transport, bitfield);
+	while (transport) {
+		/* write the transport sections, if any */
+		psi_args.from = transport;
+		psi_args.dest_offset = args->offset + nbytes;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		transport_descriptor = transport->descriptor;
+
+		while (transport_descriptor) {
+			/* write the transport descriptors, if any */
+			d_args.dest_offset        = args->offset + nbytes;
+			d_args.desc               = transport_descriptor;
+			d_args.continuity_counter = args->continuity_counter;
+			d_args.crc                = &crc;
+
+			nbytes += vidtv_psi_desc_write_into(&d_args);
+
+			transport_descriptor = transport_descriptor->next;
+		}
+
+		transport = transport->next;
+	}
+
+	c_args.dest_offset        = args->offset + nbytes;
+	c_args.crc                = cpu_to_be32(crc);
+	c_args.continuity_counter = args->continuity_counter;
+
+	/* Write the CRC32 at the end */
+	nbytes += table_section_crc32_write_into(&c_args);
+
+	return nbytes;
+}
+
+static void vidtv_psi_transport_destroy(struct vidtv_psi_table_transport *t)
+{
+	struct vidtv_psi_table_transport *tmp_t  = NULL;
+	struct vidtv_psi_table_transport *curr_t = t;
+
+	while (curr_t) {
+		tmp_t  = curr_t;
+		curr_t = curr_t->next;
+		vidtv_psi_desc_destroy(tmp_t->descriptor);
+		kfree(tmp_t);
+	}
+}
+
+void vidtv_psi_nit_table_destroy(struct vidtv_psi_table_nit *nit)
+{
+	vidtv_psi_desc_destroy(nit->descriptor);
+	vidtv_psi_transport_destroy(nit->transport);
+	kfree(nit);
+}
+
+void vidtv_psi_eit_table_update_sec_len(struct vidtv_psi_table_eit *eit)
+{
+	struct vidtv_psi_table_eit_event *e = eit->event;
+	u16 desc_loop_len;
+	u16 length = 0;
+
+	/*
+	 * from immediately after 'section_length' until
+	 * 'last_table_id'
+	 */
+	length += EIT_LEN_UNTIL_LAST_TABLE_ID;
+
+	while (e) {
+		/* skip both pointers at the end */
+		length += sizeof(struct vidtv_psi_table_eit_event) -
+			  sizeof(struct vidtv_psi_desc *) -
+			  sizeof(struct vidtv_psi_table_eit_event *);
+
+		desc_loop_len = vidtv_psi_desc_comp_loop_len(e->descriptor);
+		vidtv_psi_set_desc_loop_len(&e->bitfield, desc_loop_len, 12);
+
+		length += desc_loop_len;
+
+		e = e->next;
+	}
+
+	length += CRC_SIZE_IN_BYTES;
+
+	vidtv_psi_set_sec_len(&eit->header, length);
+}
+
+void vidtv_psi_eit_event_assign(struct vidtv_psi_table_eit *eit,
+				struct vidtv_psi_table_eit_event *e)
+{
+	do {
+		if (e == eit->event)
+			return;
+
+		eit->event = e;
+		vidtv_psi_eit_table_update_sec_len(eit);
+
+		e = NULL;
+	} while (vidtv_psi_get_sec_len(&eit->header) > EIT_MAX_SECTION_LEN);
+
+	vidtv_psi_update_version_num(&eit->header);
+}
+
+struct vidtv_psi_table_eit
+*vidtv_psi_eit_table_init(u16 network_id,
+			  u16 transport_stream_id,
+			  __be16 service_id)
+{
+	struct vidtv_psi_table_eit *eit;
+	const u16 SYNTAX = 0x1;
+	const u16 ONE = 0x1;
+	const u16 ONES = 0x03;
+
+	eit = kzalloc_obj(*eit);
+	if (!eit)
+		return NULL;
+
+	eit->header.table_id = 0x4e; //actual_transport_stream: present/following
+
+	eit->header.bitfield = cpu_to_be16((SYNTAX << 15) | (ONE << 14) | (ONES << 12));
+
+	eit->header.id = service_id;
+	eit->header.current_next = ONE;
+
+	eit->header.version = 0x1f;
+
+	eit->header.one2  = ONES;
+	eit->header.section_id   = 0;
+	eit->header.last_section = 0;
+
+	eit->transport_id = cpu_to_be16(transport_stream_id);
+	eit->network_id = cpu_to_be16(network_id);
+
+	eit->last_segment = eit->header.last_section; /* not implemented */
+	eit->last_table_id = eit->header.table_id; /* not implemented */
+
+	vidtv_psi_eit_table_update_sec_len(eit);
+
+	return eit;
+}
+
+u32 vidtv_psi_eit_write_into(struct vidtv_psi_eit_write_args *args)
+{
+	struct header_write_args h_args = {
+		.dest_buf        = args->buf,
+		.dest_offset     = args->offset,
+		.h               = &args->eit->header,
+		.pid             = VIDTV_EIT_PID,
+		.dest_buf_sz     = args->buf_sz,
+	};
+	struct psi_write_args psi_args  = {
+		.dest_buf        = args->buf,
+		.len             = sizeof_field(struct vidtv_psi_table_eit, transport_id) +
+				   sizeof_field(struct vidtv_psi_table_eit, network_id)   +
+				   sizeof_field(struct vidtv_psi_table_eit, last_segment) +
+				   sizeof_field(struct vidtv_psi_table_eit, last_table_id),
+		.pid             = VIDTV_EIT_PID,
+		.new_psi_section = false,
+		.is_crc          = false,
+		.dest_buf_sz     = args->buf_sz,
+	};
+	struct desc_write_args d_args   = {
+		.dest_buf           = args->buf,
+		.pid                = VIDTV_EIT_PID,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct crc32_write_args c_args  = {
+		.dest_buf           = args->buf,
+		.pid                = VIDTV_EIT_PID,
+		.dest_buf_sz        = args->buf_sz,
+	};
+	struct vidtv_psi_table_eit_event *event = args->eit->event;
+	struct vidtv_psi_desc *event_descriptor;
+	u32 crc = INITIAL_CRC;
+	u32 nbytes  = 0;
+
+	vidtv_psi_eit_table_update_sec_len(args->eit);
+
+	h_args.continuity_counter = args->continuity_counter;
+	h_args.crc                = &crc;
+
+	nbytes += vidtv_psi_table_header_write_into(&h_args);
+
+	psi_args.from               = &args->eit->transport_id;
+	psi_args.dest_offset        = args->offset + nbytes;
+	psi_args.continuity_counter = args->continuity_counter;
+	psi_args.crc                = &crc;
+
+	nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+	/* skip both pointers at the end */
+	psi_args.len = sizeof(struct vidtv_psi_table_eit_event) -
+		       sizeof(struct vidtv_psi_desc *) -
+		       sizeof(struct vidtv_psi_table_eit_event *);
+	while (event) {
+		/* copy the events, if any */
+		psi_args.from = event;
+		psi_args.dest_offset = args->offset + nbytes;
+
+		nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
+
+		event_descriptor = event->descriptor;
+
+		while (event_descriptor) {
+			/* copy the event descriptors, if any */
+			d_args.dest_offset        = args->offset + nbytes;
+			d_args.desc               = event_descriptor;
+			d_args.continuity_counter = args->continuity_counter;
+			d_args.crc                = &crc;
+
+			nbytes += vidtv_psi_desc_write_into(&d_args);
+
+			event_descriptor = event_descriptor->next;
+		}
+
+		event = event->next;
+	}
+
+	c_args.dest_offset        = args->offset + nbytes;
+	c_args.crc                = cpu_to_be32(crc);
+	c_args.continuity_counter = args->continuity_counter;
+
+	/* Write the CRC at the end */
+	nbytes += table_section_crc32_write_into(&c_args);
+
+	return nbytes;
+}
+
+struct vidtv_psi_table_eit_event
+*vidtv_psi_eit_event_init(struct vidtv_psi_table_eit_event *head, u16 event_id)
+{
+	static const u8 DURATION[] = {0x23, 0x59, 0x59}; /* BCD encoded */
+	struct vidtv_psi_table_eit_event *e;
+	struct timespec64 ts;
+	struct tm time;
+	int mjd, l;
+	__be16 mjd_be;
+
+	e = kzalloc_obj(*e);
+	if (!e)
+		return NULL;
+
+	e->event_id = cpu_to_be16(event_id);
+
+	ts = ktime_to_timespec64(ktime_get_real());
+	time64_to_tm(ts.tv_sec, 0, &time);
+
+	/* Convert date to Modified Julian Date - per EN 300 468 Annex C */
+	if (time.tm_mon < 2)
+		l = 1;
+	else
+		l = 0;
+
+	mjd = 14956 + time.tm_mday;
+	mjd += (time.tm_year - l) * 36525 / 100;
+	mjd += (time.tm_mon + 2 + l * 12) * 306001 / 10000;
+	mjd_be = cpu_to_be16(mjd);
+
+	/*
+	 * Store MJD and hour/min/sec to the event.
+	 *
+	 * Let's make the event to start on a full hour
+	 */
+	memcpy(e->start_time, &mjd_be, sizeof(mjd_be));
+	e->start_time[2] = bin2bcd(time.tm_hour);
+	e->start_time[3] = 0;
+	e->start_time[4] = 0;
+
+	/*
+	 * TODO: for now, the event will last for a day. Should be
+	 * enough for testing purposes, but if one runs the driver
+	 * for more than that, the current event will become invalid.
+	 * So, we need a better code here in order to change the start
+	 * time once the event expires.
+	 */
+	memcpy(e->duration, DURATION, sizeof(e->duration));
+
+	e->bitfield = cpu_to_be16(RUNNING << 13);
+
+	if (head) {
+		while (head->next)
+			head = head->next;
+
+		head->next = e;
+	}
+
+	return e;
+}
+
+void vidtv_psi_eit_event_destroy(struct vidtv_psi_table_eit_event *e)
+{
+	struct vidtv_psi_table_eit_event *tmp_e  = NULL;
+	struct vidtv_psi_table_eit_event *curr_e = e;
+
+	while (curr_e) {
+		tmp_e  = curr_e;
+		curr_e = curr_e->next;
+		vidtv_psi_desc_destroy(tmp_e->descriptor);
+		kfree(tmp_e);
+	}
+}
+
+void vidtv_psi_eit_table_destroy(struct vidtv_psi_table_eit *eit)
+{
+	vidtv_psi_eit_event_destroy(eit->event);
+	kfree(eit);
+}
diff --git a/drivers/media/test-drivers/vidtv/vidtv_psi.h b/drivers/media/test-drivers/vidtv/vidtv_psi.h
new file mode 100644
index 000000000..fdc825e54
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_psi.h
@@ -0,0 +1,809 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This file contains the logic to work with MPEG Program-Specific Information.
+ * These are defined both in ISO/IEC 13818-1 (systems) and ETSI EN 300 468.
+ * PSI is carried in the form of table structures, and although each table might
+ * technically be broken into one or more sections, we do not do this here,
+ * hence 'table' and 'section' are interchangeable for vidtv.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#ifndef VIDTV_PSI_H
+#define VIDTV_PSI_H
+
+#include <linux/types.h>
+
+/*
+ * all section lengths start immediately after the 'section_length' field
+ * see ISO/IEC 13818-1 : 2000 and ETSI EN 300 468 V 1.10.1 for
+ * reference
+ */
+#define PAT_LEN_UNTIL_LAST_SECTION_NUMBER 5
+#define PMT_LEN_UNTIL_PROGRAM_INFO_LENGTH 9
+#define SDT_LEN_UNTIL_RESERVED_FOR_FUTURE_USE 8
+#define NIT_LEN_UNTIL_NETWORK_DESCRIPTOR_LEN 7
+#define EIT_LEN_UNTIL_LAST_TABLE_ID 11
+#define MAX_SECTION_LEN 1021
+#define EIT_MAX_SECTION_LEN 4093 /* see ETSI 300 468 v.1.10.1 p. 26 */
+#define VIDTV_PAT_PID 0 /* mandated by the specs */
+#define VIDTV_SDT_PID 0x0011 /* mandated by the specs */
+#define VIDTV_NIT_PID 0x0010 /* mandated by the specs */
+#define VIDTV_EIT_PID 0x0012 /*mandated by the specs */
+
+enum vidtv_psi_descriptors {
+	REGISTRATION_DESCRIPTOR	= 0x05, /* See ISO/IEC 13818-1 section 2.6.8 */
+	NETWORK_NAME_DESCRIPTOR = 0x40, /* See ETSI EN 300 468 section 6.2.27 */
+	SERVICE_LIST_DESCRIPTOR = 0x41, /* See ETSI EN 300 468 section 6.2.35 */
+	SERVICE_DESCRIPTOR = 0x48, /* See ETSI EN 300 468 section 6.2.33 */
+	SHORT_EVENT_DESCRIPTOR = 0x4d, /* See ETSI EN 300 468 section 6.2.37 */
+};
+
+enum vidtv_psi_stream_types {
+	STREAM_PRIVATE_DATA = 0x06, /* see ISO/IEC 13818-1 2000 p. 48 */
+};
+
+/*
+ * struct vidtv_psi_desc - A generic PSI descriptor type.
+ * The descriptor length is an 8-bit field specifying the total number of bytes of the data portion
+ * of the descriptor following the byte defining the value of this field.
+ */
+struct vidtv_psi_desc {
+	struct vidtv_psi_desc *next;
+	u8 type;
+	u8 length;
+	u8 data[];
+} __packed;
+
+/*
+ * struct vidtv_psi_desc_service - Service descriptor.
+ * See ETSI EN 300 468 section 6.2.33.
+ */
+struct vidtv_psi_desc_service {
+	struct vidtv_psi_desc *next;
+	u8 type;
+	u8 length;
+
+	u8 service_type;
+	u8 provider_name_len;
+	char *provider_name;
+	u8 service_name_len;
+	char *service_name;
+} __packed;
+
+/*
+ * struct vidtv_psi_desc_registration - A registration descriptor.
+ * See ISO/IEC 13818-1 section 2.6.8
+ */
+struct vidtv_psi_desc_registration {
+	struct vidtv_psi_desc *next;
+	u8 type;
+	u8 length;
+
+	/*
+	 * The format_identifier is a 32-bit value obtained from a Registration
+	 * Authority as designated by ISO/IEC JTC 1/SC 29.
+	 */
+	__be32 format_id;
+	/*
+	 * The meaning of additional_identification_info bytes, if any, are
+	 * defined by the assignee of that format_identifier, and once defined
+	 * they shall not change.
+	 */
+	u8 additional_identification_info[];
+} __packed;
+
+/*
+ * struct vidtv_psi_desc_network_name - A network name descriptor
+ * see ETSI EN 300 468 v1.15.1 section 6.2.27
+ */
+struct vidtv_psi_desc_network_name {
+	struct vidtv_psi_desc *next;
+	u8 type;
+	u8 length;
+	char *network_name;
+} __packed;
+
+struct vidtv_psi_desc_service_list_entry {
+	__be16 service_id;
+	u8 service_type;
+	struct vidtv_psi_desc_service_list_entry *next;
+} __packed;
+
+/*
+ * struct vidtv_psi_desc_service_list - A service list descriptor
+ * see ETSI EN 300 468 v1.15.1 section 6.2.35
+ */
+struct vidtv_psi_desc_service_list {
+	struct vidtv_psi_desc *next;
+	u8 type;
+	u8 length;
+	struct vidtv_psi_desc_service_list_entry *service_list;
+} __packed;
+
+/*
+ * struct vidtv_psi_desc_short_event - A short event descriptor
+ * see ETSI EN 300 468 v1.15.1 section 6.2.37
+ */
+struct vidtv_psi_desc_short_event {
+	struct vidtv_psi_desc *next;
+	u8 type;
+	u8 length;
+	char *iso_language_code;
+	u8 event_name_len;
+	char *event_name;
+	u8 text_len;
+	char *text;
+} __packed;
+
+struct vidtv_psi_desc_short_event
+*vidtv_psi_short_event_desc_init(struct vidtv_psi_desc *head,
+				 char *iso_language_code,
+				 char *event_name,
+				 char *text);
+
+/*
+ * struct vidtv_psi_table_header - A header that is present for all PSI tables.
+ */
+struct vidtv_psi_table_header {
+	u8  table_id;
+
+	__be16 bitfield; /* syntax: 1, zero: 1, one: 2, section_length: 13 */
+
+	__be16 id; /* TS ID */
+	u8  current_next:1;
+	u8  version:5;
+	u8  one2:2;
+	u8  section_id;	/* section_number */
+	u8  last_section; /* last_section_number */
+} __packed;
+
+/*
+ * struct vidtv_psi_table_pat_program - A single program in the PAT
+ * See ISO/IEC 13818-1 : 2000 p.43
+ */
+struct vidtv_psi_table_pat_program {
+	__be16 service_id;
+	__be16 bitfield; /* reserved: 3, program_map_pid/network_pid: 13 */
+	struct vidtv_psi_table_pat_program *next;
+} __packed;
+
+/*
+ * struct vidtv_psi_table_pat - The Program Allocation Table (PAT)
+ * See ISO/IEC 13818-1 : 2000 p.43
+ */
+struct vidtv_psi_table_pat {
+	struct vidtv_psi_table_header header;
+	u16 num_pat;
+	u16 num_pmt;
+	struct vidtv_psi_table_pat_program *program;
+} __packed;
+
+/*
+ * struct vidtv_psi_table_sdt_service - Represents a service in the SDT.
+ * see ETSI EN 300 468 v1.15.1 section 5.2.3.
+ */
+struct vidtv_psi_table_sdt_service {
+	__be16 service_id;
+	u8 EIT_present_following:1;
+	u8 EIT_schedule:1;
+	u8 reserved:6;
+	__be16 bitfield; /* running_status: 3, free_ca:1, desc_loop_len:12 */
+	struct vidtv_psi_desc *descriptor;
+	struct vidtv_psi_table_sdt_service *next;
+} __packed;
+
+/*
+ * struct vidtv_psi_table_sdt - Represents the Service Description Table
+ * see ETSI EN 300 468 v1.15.1 section 5.2.3.
+ */
+
+struct vidtv_psi_table_sdt {
+	struct vidtv_psi_table_header header;
+	__be16 network_id; /* original_network_id */
+	u8  reserved;
+	struct vidtv_psi_table_sdt_service *service;
+} __packed;
+
+/*
+ * enum service_running_status - Status of a SDT service.
+ * see ETSI EN 300 468 v1.15.1 section 5.2.3 table 6.
+ */
+enum service_running_status {
+	RUNNING = 0x4,
+};
+
+/*
+ * enum service_type - The type of a SDT service.
+ * see ETSI EN 300 468 v1.15.1 section 6.2.33, table 81.
+ */
+enum service_type {
+	/* see ETSI EN 300 468 v1.15.1 p. 77 */
+	DIGITAL_TELEVISION_SERVICE = 0x1,
+	DIGITAL_RADIO_SOUND_SERVICE = 0X2,
+};
+
+/*
+ * struct vidtv_psi_table_pmt_stream - A single stream in the PMT.
+ * See ISO/IEC 13818-1 : 2000 p.46.
+ */
+struct vidtv_psi_table_pmt_stream {
+	u8 type;
+	__be16 bitfield; /* reserved: 3, elementary_pid: 13 */
+	__be16 bitfield2; /*reserved: 4, zero: 2, desc_length: 10 */
+	struct vidtv_psi_desc *descriptor;
+	struct vidtv_psi_table_pmt_stream *next;
+} __packed;
+
+/*
+ * struct vidtv_psi_table_pmt - The Program Map Table (PMT).
+ * See ISO/IEC 13818-1 : 2000 p.46.
+ */
+struct vidtv_psi_table_pmt {
+	struct vidtv_psi_table_header header;
+	__be16 bitfield; /* reserved:3, pcr_pid: 13 */
+	__be16 bitfield2; /* reserved: 4, zero: 2, desc_len: 10 */
+	struct vidtv_psi_desc *descriptor;
+	struct vidtv_psi_table_pmt_stream *stream;
+} __packed;
+
+/**
+ * struct psi_write_args - Arguments for the PSI packetizer.
+ * @dest_buf: The buffer to write into.
+ * @from: PSI data to be copied.
+ * @len: How much to write.
+ * @dest_offset: where to start writing in the dest_buffer.
+ * @pid: TS packet ID.
+ * @new_psi_section: Set when starting a table section.
+ * @continuity_counter: Incremented on every new packet.
+ * @is_crc: Set when writing the CRC at the end.
+ * @dest_buf_sz: The size of the dest_buffer
+ * @crc: a pointer to store the crc for this chunk
+ */
+struct psi_write_args {
+	void *dest_buf;
+	void *from;
+	size_t len;
+	u32 dest_offset;
+	u16 pid;
+	bool new_psi_section;
+	u8 *continuity_counter;
+	bool is_crc;
+	u32 dest_buf_sz;
+	u32 *crc;
+};
+
+/**
+ * struct desc_write_args - Arguments in order to write a descriptor.
+ * @dest_buf: The buffer to write into.
+ * @dest_offset: where to start writing in the dest_buffer.
+ * @desc: A pointer to the descriptor
+ * @pid: TS packet ID.
+ * @continuity_counter: Incremented on every new packet.
+ * @dest_buf_sz: The size of the dest_buffer
+ * @crc: a pointer to store the crc for this chunk
+ */
+struct desc_write_args {
+	void *dest_buf;
+	u32 dest_offset;
+	struct vidtv_psi_desc *desc;
+	u16 pid;
+	u8 *continuity_counter;
+	u32 dest_buf_sz;
+	u32 *crc;
+};
+
+/**
+ * struct crc32_write_args - Arguments in order to write the CRC at the end of
+ * the PSI tables.
+ * @dest_buf: The buffer to write into.
+ * @dest_offset: where to start writing in the dest_buffer.
+ * @crc: the CRC value to write
+ * @pid: TS packet ID.
+ * @continuity_counter: Incremented on every new packet.
+ * @dest_buf_sz: The size of the dest_buffer
+ */
+struct crc32_write_args {
+	void *dest_buf;
+	u32 dest_offset;
+	__be32 crc;
+	u16 pid;
+	u8 *continuity_counter;
+	u32 dest_buf_sz;
+};
+
+/**
+ * struct header_write_args - Arguments in order to write the common table
+ * header
+ * @dest_buf: The buffer to write into.
+ * @dest_offset: where to start writing in the dest_buffer.
+ * @h: a pointer to the header.
+ * @pid: TS packet ID.
+ * @continuity_counter: Incremented on every new packet.
+ * @dest_buf_sz: The size of the dest_buffer
+ * @crc: a pointer to store the crc for this chunk
+ */
+struct header_write_args {
+	void *dest_buf;
+	u32 dest_offset;
+	struct vidtv_psi_table_header *h;
+	u16 pid;
+	u8 *continuity_counter;
+	u32 dest_buf_sz;
+	u32 *crc;
+};
+
+struct vidtv_psi_desc_service *vidtv_psi_service_desc_init(struct vidtv_psi_desc *head,
+							   enum service_type service_type,
+							   char *service_name,
+							   char *provider_name);
+
+struct vidtv_psi_desc_registration
+*vidtv_psi_registration_desc_init(struct vidtv_psi_desc *head,
+				  __be32 format_id,
+				  u8 *additional_ident_info,
+				  u32 additional_info_len);
+
+struct vidtv_psi_desc_network_name
+*vidtv_psi_network_name_desc_init(struct vidtv_psi_desc *head, char *network_name);
+
+struct vidtv_psi_desc_service_list
+*vidtv_psi_service_list_desc_init(struct vidtv_psi_desc *head,
+				  struct vidtv_psi_desc_service_list_entry *entry);
+
+struct vidtv_psi_table_pat_program
+*vidtv_psi_pat_program_init(struct vidtv_psi_table_pat_program *head,
+			    u16 service_id,
+			    u16 program_map_pid);
+
+struct vidtv_psi_table_pmt_stream*
+vidtv_psi_pmt_stream_init(struct vidtv_psi_table_pmt_stream *head,
+			  enum vidtv_psi_stream_types stream_type,
+			  u16 es_pid);
+
+struct vidtv_psi_table_pat *vidtv_psi_pat_table_init(u16 transport_stream_id);
+
+struct vidtv_psi_table_pmt *vidtv_psi_pmt_table_init(u16 program_number,
+						     u16 pcr_pid);
+
+struct vidtv_psi_table_sdt *vidtv_psi_sdt_table_init(u16 network_id,
+						     u16 transport_stream_id);
+
+struct vidtv_psi_table_sdt_service*
+vidtv_psi_sdt_service_init(struct vidtv_psi_table_sdt_service *head,
+			   u16 service_id,
+			   bool eit_schedule,
+			   bool eit_present_following);
+
+void
+vidtv_psi_desc_destroy(struct vidtv_psi_desc *desc);
+
+void
+vidtv_psi_pat_program_destroy(struct vidtv_psi_table_pat_program *p);
+
+void
+vidtv_psi_pat_table_destroy(struct vidtv_psi_table_pat *p);
+
+void
+vidtv_psi_pmt_stream_destroy(struct vidtv_psi_table_pmt_stream *s);
+
+void
+vidtv_psi_pmt_table_destroy(struct vidtv_psi_table_pmt *pmt);
+
+void
+vidtv_psi_sdt_table_destroy(struct vidtv_psi_table_sdt *sdt);
+
+void
+vidtv_psi_sdt_service_destroy(struct vidtv_psi_table_sdt_service *service);
+
+/**
+ * vidtv_psi_sdt_service_assign - Assigns the service loop to the SDT.
+ * @sdt: The SDT to assign to.
+ * @service: The service loop (one or more services)
+ *
+ * This will free the previous service loop in the table.
+ * This will assign ownership of the service loop to the table, i.e. the table
+ * will free this service loop when a call to its destroy function is made.
+ */
+void
+vidtv_psi_sdt_service_assign(struct vidtv_psi_table_sdt *sdt,
+			     struct vidtv_psi_table_sdt_service *service);
+
+/**
+ * vidtv_psi_desc_assign - Assigns a descriptor loop at some point
+ * @to: Where to assign this descriptor loop to
+ * @desc: The descriptor loop that will be assigned.
+ *
+ * This will free the loop in 'to', if any.
+ */
+void vidtv_psi_desc_assign(struct vidtv_psi_desc **to,
+			   struct vidtv_psi_desc *desc);
+
+/**
+ * vidtv_pmt_desc_assign - Assigns a descriptor loop at some point in a PMT section.
+ * @pmt: The PMT section that will contain the descriptor loop
+ * @to: Where in the PMT to assign this descriptor loop to
+ * @desc: The descriptor loop that will be assigned.
+ *
+ * This will free the loop in 'to', if any.
+ * This will assign ownership of the loop to the table, i.e. the table
+ * will free this loop when a call to its destroy function is made.
+ */
+void vidtv_pmt_desc_assign(struct vidtv_psi_table_pmt *pmt,
+			   struct vidtv_psi_desc **to,
+			   struct vidtv_psi_desc *desc);
+
+/**
+ * vidtv_sdt_desc_assign - Assigns a descriptor loop at some point in a SDT.
+ * @sdt: The SDT that will contain the descriptor loop
+ * @to: Where in the PMT to assign this descriptor loop to
+ * @desc: The descriptor loop that will be assigned.
+ *
+ * This will free the loop in 'to', if any.
+ * This will assign ownership of the loop to the table, i.e. the table
+ * will free this loop when a call to its destroy function is made.
+ */
+void vidtv_sdt_desc_assign(struct vidtv_psi_table_sdt *sdt,
+			   struct vidtv_psi_desc **to,
+			   struct vidtv_psi_desc *desc);
+
+/**
+ * vidtv_psi_pat_program_assign - Assigns the program loop to the PAT.
+ * @pat: The PAT to assign to.
+ * @p: The program loop (one or more programs)
+ *
+ * This will free the previous program loop in the table.
+ * This will assign ownership of the program loop to the table, i.e. the table
+ * will free this program loop when a call to its destroy function is made.
+ */
+void vidtv_psi_pat_program_assign(struct vidtv_psi_table_pat *pat,
+				  struct vidtv_psi_table_pat_program *p);
+
+/**
+ * vidtv_psi_pmt_stream_assign - Assigns the stream loop to the PAT.
+ * @pmt: The PMT to assign to.
+ * @s: The stream loop (one or more streams)
+ *
+ * This will free the previous stream loop in the table.
+ * This will assign ownership of the stream loop to the table, i.e. the table
+ * will free this stream loop when a call to its destroy function is made.
+ */
+void vidtv_psi_pmt_stream_assign(struct vidtv_psi_table_pmt *pmt,
+				 struct vidtv_psi_table_pmt_stream *s);
+
+struct vidtv_psi_desc *vidtv_psi_desc_clone(struct vidtv_psi_desc *desc);
+
+/**
+ * vidtv_psi_pmt_create_sec_for_each_pat_entry - Create a PMT section for each
+ * program found in the PAT
+ * @pat: The PAT to look for programs.
+ * @pcr_pid: packet ID for the PCR to be used for the program described in this
+ * PMT section
+ */
+struct vidtv_psi_table_pmt**
+vidtv_psi_pmt_create_sec_for_each_pat_entry(struct vidtv_psi_table_pat *pat, u16 pcr_pid);
+
+/**
+ * vidtv_psi_pmt_get_pid - Get the TS PID for a PMT section.
+ * @section: The PMT section whose PID we want to retrieve.
+ * @pat: The PAT table to look into.
+ *
+ * Returns: the TS PID for 'section'
+ */
+u16 vidtv_psi_pmt_get_pid(struct vidtv_psi_table_pmt *section,
+			  struct vidtv_psi_table_pat *pat);
+
+/**
+ * vidtv_psi_pat_table_update_sec_len - Recompute and update the PAT section length.
+ * @pat: The PAT whose length is to be updated.
+ *
+ * This will traverse the table and accumulate the length of its components,
+ * which is then used to replace the 'section_length' field.
+ *
+ * If section_length > MAX_SECTION_LEN, the operation fails.
+ */
+void vidtv_psi_pat_table_update_sec_len(struct vidtv_psi_table_pat *pat);
+
+/**
+ * vidtv_psi_pmt_table_update_sec_len - Recompute and update the PMT section length.
+ * @pmt: The PMT whose length is to be updated.
+ *
+ * This will traverse the table and accumulate the length of its components,
+ * which is then used to replace the 'section_length' field.
+ *
+ * If section_length > MAX_SECTION_LEN, the operation fails.
+ */
+void vidtv_psi_pmt_table_update_sec_len(struct vidtv_psi_table_pmt *pmt);
+
+/**
+ * vidtv_psi_sdt_table_update_sec_len - Recompute and update the SDT section length.
+ * @sdt: The SDT whose length is to be updated.
+ *
+ * This will traverse the table and accumulate the length of its components,
+ * which is then used to replace the 'section_length' field.
+ *
+ * If section_length > MAX_SECTION_LEN, the operation fails.
+ */
+void vidtv_psi_sdt_table_update_sec_len(struct vidtv_psi_table_sdt *sdt);
+
+/**
+ * struct vidtv_psi_pat_write_args - Arguments for writing a PAT table
+ * @buf: The destination buffer.
+ * @offset: The offset into the destination buffer.
+ * @pat: A pointer to the PAT.
+ * @buf_sz: The size of the destination buffer.
+ * @continuity_counter: A pointer to the CC. Incremented on every new packet.
+ *
+ */
+struct vidtv_psi_pat_write_args {
+	char *buf;
+	u32 offset;
+	struct vidtv_psi_table_pat *pat;
+	u32 buf_sz;
+	u8 *continuity_counter;
+};
+
+/**
+ * vidtv_psi_pat_write_into - Write PAT as MPEG-TS packets into a buffer.
+ * @args: An instance of struct vidtv_psi_pat_write_args
+ *
+ * This function writes the MPEG TS packets for a PAT table into a buffer.
+ * Calling code will usually generate the PAT via a call to its init function
+ * and thus is responsible for freeing it.
+ *
+ * Return: The number of bytes written into the buffer. This is NOT
+ * equal to the size of the PAT, since more space is needed for TS headers during TS
+ * encapsulation.
+ */
+u32 vidtv_psi_pat_write_into(struct vidtv_psi_pat_write_args *args);
+
+/**
+ * struct vidtv_psi_sdt_write_args - Arguments for writing a SDT table
+ * @buf: The destination buffer.
+ * @offset: The offset into the destination buffer.
+ * @sdt: A pointer to the SDT.
+ * @buf_sz: The size of the destination buffer.
+ * @continuity_counter: A pointer to the CC. Incremented on every new packet.
+ *
+ */
+
+struct vidtv_psi_sdt_write_args {
+	char *buf;
+	u32 offset;
+	struct vidtv_psi_table_sdt *sdt;
+	u32 buf_sz;
+	u8 *continuity_counter;
+};
+
+/**
+ * vidtv_psi_sdt_write_into - Write SDT as MPEG-TS packets into a buffer.
+ * @args: an instance of struct vidtv_psi_sdt_write_args
+ *
+ * This function writes the MPEG TS packets for a SDT table into a buffer.
+ * Calling code will usually generate the SDT via a call to its init function
+ * and thus is responsible for freeing it.
+ *
+ * Return: The number of bytes written into the buffer. This is NOT
+ * equal to the size of the SDT, since more space is needed for TS headers during TS
+ * encapsulation.
+ */
+u32 vidtv_psi_sdt_write_into(struct vidtv_psi_sdt_write_args *args);
+
+/**
+ * struct vidtv_psi_pmt_write_args - Arguments for writing a PMT section
+ * @buf: The destination buffer.
+ * @offset: The offset into the destination buffer.
+ * @pmt: A pointer to the PMT.
+ * @pid: Program ID
+ * @buf_sz: The size of the destination buffer.
+ * @continuity_counter: A pointer to the CC. Incremented on every new packet.
+ * @pcr_pid: The TS PID used for the PSI packets. All channels will share the
+ * same PCR.
+ */
+struct vidtv_psi_pmt_write_args {
+	char *buf;
+	u32 offset;
+	struct vidtv_psi_table_pmt *pmt;
+	u16 pid;
+	u32 buf_sz;
+	u8 *continuity_counter;
+	u16 pcr_pid;
+};
+
+/**
+ * vidtv_psi_pmt_write_into - Write PMT as MPEG-TS packets into a buffer.
+ * @args: an instance of struct vidtv_psi_pmt_write_args
+ *
+ * This function writes the MPEG TS packets for a PMT section into a buffer.
+ * Calling code will usually generate the PMT section via a call to its init function
+ * and thus is responsible for freeing it.
+ *
+ * Return: The number of bytes written into the buffer. This is NOT
+ * equal to the size of the PMT section, since more space is needed for TS headers
+ * during TS encapsulation.
+ */
+u32 vidtv_psi_pmt_write_into(struct vidtv_psi_pmt_write_args *args);
+
+/**
+ * vidtv_psi_find_pmt_sec - Finds the PMT section for 'program_num'
+ * @pmt_sections: The sections to look into.
+ * @nsections: The number of sections.
+ * @program_num: The 'program_num' from PAT pointing to a PMT section.
+ *
+ * Return: A pointer to the PMT, if found, or NULL.
+ */
+struct vidtv_psi_table_pmt *vidtv_psi_find_pmt_sec(struct vidtv_psi_table_pmt **pmt_sections,
+						   u16 nsections,
+						   u16 program_num);
+
+u16 vidtv_psi_get_pat_program_pid(struct vidtv_psi_table_pat_program *p);
+u16 vidtv_psi_pmt_stream_get_elem_pid(struct vidtv_psi_table_pmt_stream *s);
+
+/**
+ * struct vidtv_psi_table_transport - A entry in the TS loop for the NIT and/or other tables.
+ * See ETSI 300 468 section 5.2.1
+ * @transport_id: The TS ID being described
+ * @network_id: The network_id that contains the TS ID
+ * @bitfield: Contains the descriptor loop length
+ * @descriptor: A descriptor loop
+ * @next: Pointer to the next entry
+ *
+ */
+struct vidtv_psi_table_transport {
+	__be16 transport_id;
+	__be16 network_id;
+	__be16 bitfield; /* desc_len: 12, reserved: 4 */
+	struct vidtv_psi_desc *descriptor;
+	struct vidtv_psi_table_transport *next;
+} __packed;
+
+/**
+ * struct vidtv_psi_table_nit - A Network Information Table (NIT). See ETSI 300
+ * 468 section 5.2.1
+ * @header: A PSI table header
+ * @bitfield: Contains the network descriptor length
+ * @descriptor: A descriptor loop describing the network
+ * @bitfield2: Contains the transport stream loop length
+ * @transport: The transport stream loop
+ *
+ */
+struct vidtv_psi_table_nit {
+	struct vidtv_psi_table_header header;
+	__be16 bitfield; /* network_desc_len: 12, reserved:4 */
+	struct vidtv_psi_desc *descriptor;
+	__be16 bitfield2; /* ts_loop_len: 12, reserved: 4 */
+	struct vidtv_psi_table_transport *transport;
+} __packed;
+
+struct vidtv_psi_table_nit
+*vidtv_psi_nit_table_init(u16 network_id,
+			  u16 transport_stream_id,
+			  char *network_name,
+			  struct vidtv_psi_desc_service_list_entry *service_list);
+
+/**
+ * struct vidtv_psi_nit_write_args - Arguments for writing a NIT section
+ * @buf: The destination buffer.
+ * @offset: The offset into the destination buffer.
+ * @nit: A pointer to the NIT
+ * @buf_sz: The size of the destination buffer.
+ * @continuity_counter: A pointer to the CC. Incremented on every new packet.
+ *
+ */
+struct vidtv_psi_nit_write_args {
+	char *buf;
+	u32 offset;
+	struct vidtv_psi_table_nit *nit;
+	u32 buf_sz;
+	u8 *continuity_counter;
+};
+
+/**
+ * vidtv_psi_nit_write_into - Write NIT as MPEG-TS packets into a buffer.
+ * @args: an instance of struct vidtv_psi_nit_write_args
+ *
+ * This function writes the MPEG TS packets for a NIT table into a buffer.
+ * Calling code will usually generate the NIT via a call to its init function
+ * and thus is responsible for freeing it.
+ *
+ * Return: The number of bytes written into the buffer. This is NOT
+ * equal to the size of the NIT, since more space is needed for TS headers during TS
+ * encapsulation.
+ */
+u32 vidtv_psi_nit_write_into(struct vidtv_psi_nit_write_args *args);
+
+void vidtv_psi_nit_table_destroy(struct vidtv_psi_table_nit *nit);
+
+/*
+ * struct vidtv_psi_desc_short_event - A short event descriptor
+ * see ETSI EN 300 468 v1.15.1 section 6.2.37
+ */
+struct vidtv_psi_table_eit_event {
+	__be16 event_id;
+	u8 start_time[5];
+	u8 duration[3];
+	__be16 bitfield; /* desc_length: 12, free_CA_mode: 1, running_status: 1 */
+	struct vidtv_psi_desc *descriptor;
+	struct vidtv_psi_table_eit_event *next;
+} __packed;
+
+/*
+ * struct vidtv_psi_table_eit - A Event Information Table (EIT)
+ * See ETSI 300 468 section 5.2.4
+ */
+struct vidtv_psi_table_eit {
+	struct vidtv_psi_table_header header;
+	__be16 transport_id;
+	__be16 network_id;
+	u8 last_segment;
+	u8 last_table_id;
+	struct vidtv_psi_table_eit_event *event;
+} __packed;
+
+struct vidtv_psi_table_eit
+*vidtv_psi_eit_table_init(u16 network_id,
+			  u16 transport_stream_id,
+			  __be16 service_id);
+
+/**
+ * struct vidtv_psi_eit_write_args - Arguments for writing an EIT section
+ * @buf: The destination buffer.
+ * @offset: The offset into the destination buffer.
+ * @eit: A pointer to the EIT
+ * @buf_sz: The size of the destination buffer.
+ * @continuity_counter: A pointer to the CC. Incremented on every new packet.
+ *
+ */
+struct vidtv_psi_eit_write_args {
+	char *buf;
+	u32 offset;
+	struct vidtv_psi_table_eit *eit;
+	u32 buf_sz;
+	u8 *continuity_counter;
+};
+
+/**
+ * vidtv_psi_eit_write_into - Write EIT as MPEG-TS packets into a buffer.
+ * @args: an instance of struct vidtv_psi_nit_write_args
+ *
+ * This function writes the MPEG TS packets for a EIT table into a buffer.
+ * Calling code will usually generate the EIT via a call to its init function
+ * and thus is responsible for freeing it.
+ *
+ * Return: The number of bytes written into the buffer. This is NOT
+ * equal to the size of the EIT, since more space is needed for TS headers during TS
+ * encapsulation.
+ */
+u32 vidtv_psi_eit_write_into(struct vidtv_psi_eit_write_args *args);
+
+void vidtv_psi_eit_table_destroy(struct vidtv_psi_table_eit *eit);
+
+/**
+ * vidtv_psi_eit_table_update_sec_len - Recompute and update the EIT section length.
+ * @eit: The EIT whose length is to be updated.
+ *
+ * This will traverse the table and accumulate the length of its components,
+ * which is then used to replace the 'section_length' field.
+ *
+ * If section_length > EIT_MAX_SECTION_LEN, the operation fails.
+ */
+void vidtv_psi_eit_table_update_sec_len(struct vidtv_psi_table_eit *eit);
+
+/**
+ * vidtv_psi_eit_event_assign - Assigns the event loop to the EIT.
+ * @eit: The EIT to assign to.
+ * @e: The event loop
+ *
+ * This will free the previous event loop in the table.
+ * This will assign ownership of the stream loop to the table, i.e. the table
+ * will free this stream loop when a call to its destroy function is made.
+ */
+void vidtv_psi_eit_event_assign(struct vidtv_psi_table_eit *eit,
+				struct vidtv_psi_table_eit_event *e);
+
+struct vidtv_psi_table_eit_event
+*vidtv_psi_eit_event_init(struct vidtv_psi_table_eit_event *head, u16 event_id);
+
+void vidtv_psi_eit_event_destroy(struct vidtv_psi_table_eit_event *e);
+
+#endif // VIDTV_PSI_H
diff --git a/drivers/media/test-drivers/vidtv/vidtv_s302m.c b/drivers/media/test-drivers/vidtv/vidtv_s302m.c
new file mode 100644
index 000000000..3c08e442b
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_s302m.c
@@ -0,0 +1,524 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Vidtv serves as a reference DVB driver and helps validate the existing APIs
+ * in the media subsystem. It can also aid developers working on userspace
+ * applications.
+ *
+ * This file contains the code for an AES3 (also known as AES/EBU) encoder.
+ * It is based on EBU Tech 3250 and SMPTE 302M technical documents.
+ *
+ * This encoder currently supports 16bit AES3 subframes using 16bit signed
+ * integers.
+ *
+ * Note: AU stands for Access Unit, and AAU stands for Audio Access Unit
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__
+
+#include <linux/bug.h>
+#include <linux/crc32.h>
+#include <linux/fixp-arith.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/math64.h>
+#include <linux/printk.h>
+#include <linux/ratelimit.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+
+#include "vidtv_common.h"
+#include "vidtv_encoder.h"
+#include "vidtv_s302m.h"
+
+#define S302M_SAMPLING_RATE_HZ 48000
+#define PES_PRIVATE_STREAM_1 0xbd  /* PES: private_stream_1 */
+#define S302M_BLOCK_SZ 192
+#define S302M_SIN_LUT_NUM_ELEM 1024
+
+/* these are retrieved empirically from ffmpeg/libavcodec */
+#define FF_S302M_DEFAULT_NUM_FRAMES 1115
+#define FF_S302M_DEFAULT_PTS_INCREMENT 2090
+#define FF_S302M_DEFAULT_PTS_OFFSET 100000
+
+/* Used by the tone generator: number of samples for PI */
+#define PI_SAMPLES		180
+
+static const u8 reverse[256] = {
+	/* from ffmpeg */
+	0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0,
+	0x30, 0xB0, 0x70, 0xF0, 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8,
+	0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, 0x04, 0x84, 0x44, 0xC4,
+	0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,
+	0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC,
+	0x3C, 0xBC, 0x7C, 0xFC, 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2,
+	0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, 0x0A, 0x8A, 0x4A, 0xCA,
+	0x2A, 0xAA, 0x6A, 0xEA, 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA,
+	0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6,
+	0x36, 0xB6, 0x76, 0xF6, 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE,
+	0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, 0x01, 0x81, 0x41, 0xC1,
+	0x21, 0xA1, 0x61, 0xE1, 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1,
+	0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59, 0xD9,
+	0x39, 0xB9, 0x79, 0xF9, 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5,
+	0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, 0x0D, 0x8D, 0x4D, 0xCD,
+	0x2D, 0xAD, 0x6D, 0xED, 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD,
+	0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, 0x13, 0x93, 0x53, 0xD3,
+	0x33, 0xB3, 0x73, 0xF3, 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB,
+	0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, 0x07, 0x87, 0x47, 0xC7,
+	0x27, 0xA7, 0x67, 0xE7, 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7,
+	0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x9F, 0x5F, 0xDF,
+	0x3F, 0xBF, 0x7F, 0xFF,
+};
+
+struct tone_duration {
+	enum musical_notes note;
+	int duration;
+};
+
+#define COMPASS 100 /* beats per minute */
+static const struct tone_duration beethoven_fur_elise[] = {
+	{ NOTE_SILENT, 512},
+	{ NOTE_E_6, 128},  { NOTE_DS_6, 128}, { NOTE_E_6, 128},
+	{ NOTE_DS_6, 128}, { NOTE_E_6, 128},  { NOTE_B_5, 128},
+	{ NOTE_D_6, 128},  { NOTE_C_6, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_C_5, 128},
+	{ NOTE_E_5, 128},  { NOTE_A_5, 128},  { NOTE_E_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_GS_4, 128}, { NOTE_E_5, 128},
+	{ NOTE_GS_5, 128}, { NOTE_B_5, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_E_5, 128},
+	{ NOTE_E_6, 128},  { NOTE_DS_6, 128}, { NOTE_E_6, 128},
+	{ NOTE_DS_6, 128}, { NOTE_E_6, 128},  { NOTE_B_5, 128},
+	{ NOTE_D_6, 128},  { NOTE_C_6, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_C_5, 128},
+	{ NOTE_E_5, 128},  { NOTE_A_5, 128},  { NOTE_E_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_GS_4, 128}, { NOTE_E_5, 128},
+	{ NOTE_C_6, 128},  { NOTE_B_5, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_SILENT, 128},
+
+	{ NOTE_E_6, 128},  { NOTE_DS_6, 128}, { NOTE_E_6, 128},
+	{ NOTE_DS_6, 128}, { NOTE_E_6, 128},  { NOTE_B_5, 128},
+	{ NOTE_D_6, 128},  { NOTE_C_6, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_C_5, 128},
+	{ NOTE_E_5, 128},  { NOTE_A_5, 128},  { NOTE_E_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_GS_4, 128}, { NOTE_E_5, 128},
+	{ NOTE_GS_5, 128}, { NOTE_B_5, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_E_5, 128},
+	{ NOTE_E_6, 128},  { NOTE_DS_6, 128}, { NOTE_E_6, 128},
+	{ NOTE_DS_6, 128}, { NOTE_E_6, 128},  { NOTE_B_5, 128},
+	{ NOTE_D_6, 128},  { NOTE_C_6, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_C_5, 128},
+	{ NOTE_E_5, 128},  { NOTE_A_5, 128},  { NOTE_E_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_GS_4, 128}, { NOTE_E_5, 128},
+	{ NOTE_C_6, 128},  { NOTE_B_5, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_B_4, 128},
+	{ NOTE_C_5, 128},  { NOTE_D_5, 128},  { NOTE_C_4, 128},
+	{ NOTE_G_4, 128},  { NOTE_C_5, 128},  { NOTE_G_4, 128},
+	{ NOTE_F_5, 128},  { NOTE_E_5, 128},  { NOTE_G_3, 128},
+	{ NOTE_G_4, 128},  { NOTE_B_3, 128},  { NOTE_F_4, 128},
+	{ NOTE_E_5, 128},  { NOTE_D_5, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_E_4, 128},
+	{ NOTE_D_5, 128},  { NOTE_C_5, 128},  { NOTE_E_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_E_5, 128},  { NOTE_E_5, 128},
+	{ NOTE_E_6, 128},  { NOTE_E_5, 128},  { NOTE_E_6, 128},
+	{ NOTE_E_5, 128},  { NOTE_E_5, 128},  { NOTE_DS_5, 128},
+	{ NOTE_E_5, 128},  { NOTE_DS_6, 128}, { NOTE_E_6, 128},
+	{ NOTE_DS_5, 128}, { NOTE_E_5, 128},  { NOTE_DS_6, 128},
+	{ NOTE_E_6, 128},  { NOTE_DS_6, 128}, { NOTE_E_6, 128},
+	{ NOTE_DS_6, 128}, { NOTE_E_6, 128},  { NOTE_B_5, 128},
+	{ NOTE_D_6, 128},  { NOTE_C_6, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_C_5, 128},
+	{ NOTE_E_5, 128},  { NOTE_A_5, 128},  { NOTE_E_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_GS_4, 128}, { NOTE_E_5, 128},
+	{ NOTE_GS_5, 128}, { NOTE_B_5, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_E_5, 128},
+	{ NOTE_E_6, 128},  { NOTE_DS_6, 128}, { NOTE_E_6, 128},
+	{ NOTE_DS_6, 128}, { NOTE_E_6, 128},  { NOTE_B_5, 128},
+	{ NOTE_D_6, 128},  { NOTE_C_6, 128},  { NOTE_A_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_A_4, 128},  { NOTE_C_5, 128},
+	{ NOTE_E_5, 128},  { NOTE_A_5, 128},  { NOTE_E_3, 128},
+	{ NOTE_E_4, 128},  { NOTE_GS_4, 128}, { NOTE_E_5, 128},
+	{ NOTE_C_6, 128},  { NOTE_B_5, 128},  { NOTE_A_5, 512},
+	{ NOTE_SILENT, 256},
+};
+
+static struct vidtv_access_unit *vidtv_s302m_access_unit_init(struct vidtv_access_unit *head)
+{
+	struct vidtv_access_unit *au;
+
+	au = kzalloc_obj(*au);
+	if (!au)
+		return NULL;
+
+	if (head) {
+		while (head->next)
+			head = head->next;
+
+		head->next = au;
+	}
+
+	return au;
+}
+
+static void vidtv_s302m_access_unit_destroy(struct vidtv_encoder *e)
+{
+	struct vidtv_access_unit *head = e->access_units;
+	struct vidtv_access_unit *tmp = NULL;
+
+	while (head) {
+		tmp = head;
+		head = head->next;
+		kfree(tmp);
+	}
+
+	e->access_units = NULL;
+}
+
+static void vidtv_s302m_alloc_au(struct vidtv_encoder *e)
+{
+	struct vidtv_access_unit *sync_au = NULL;
+	struct vidtv_access_unit *temp = NULL;
+
+	if (e->sync && e->sync->is_video_encoder) {
+		sync_au = e->sync->access_units;
+
+		while (sync_au) {
+			temp = vidtv_s302m_access_unit_init(e->access_units);
+			if (!e->access_units)
+				e->access_units = temp;
+
+			sync_au = sync_au->next;
+		}
+
+		return;
+	}
+
+	e->access_units = vidtv_s302m_access_unit_init(NULL);
+}
+
+static void
+vidtv_s302m_compute_sample_count_from_video(struct vidtv_encoder *e)
+{
+	struct vidtv_access_unit *sync_au = e->sync->access_units;
+	struct vidtv_access_unit *au = e->access_units;
+	u32 sample_duration_usecs;
+	u32 vau_duration_usecs;
+	u32 s;
+
+	vau_duration_usecs    = USEC_PER_SEC / e->sync->sampling_rate_hz;
+	sample_duration_usecs = USEC_PER_SEC / e->sampling_rate_hz;
+
+	while (au && sync_au) {
+		s = DIV_ROUND_UP(vau_duration_usecs, sample_duration_usecs);
+		au->num_samples = s;
+		au = au->next;
+		sync_au = sync_au->next;
+	}
+}
+
+static void vidtv_s302m_compute_pts_from_video(struct vidtv_encoder *e)
+{
+	struct vidtv_access_unit *au = e->access_units;
+	struct vidtv_access_unit *sync_au = e->sync->access_units;
+
+	/* use the same pts from the video access unit*/
+	while (au && sync_au) {
+		au->pts = sync_au->pts;
+		au = au->next;
+		sync_au = sync_au->next;
+	}
+}
+
+static u16 vidtv_s302m_get_sample(struct vidtv_encoder *e)
+{
+	u16 sample;
+	int pos;
+	struct vidtv_s302m_ctx *ctx = e->ctx;
+
+	if (!e->src_buf) {
+		/*
+		 * Simple tone generator: play the tones at the
+		 * beethoven_fur_elise array.
+		 */
+		if (ctx->last_duration <= 0) {
+			if (e->src_buf_offset >= ARRAY_SIZE(beethoven_fur_elise))
+				e->src_buf_offset = 0;
+
+			ctx->last_tone = beethoven_fur_elise[e->src_buf_offset].note;
+			ctx->last_duration = beethoven_fur_elise[e->src_buf_offset].duration *
+					     S302M_SAMPLING_RATE_HZ / COMPASS / 5;
+			e->src_buf_offset++;
+			ctx->note_offset = 0;
+		} else {
+			ctx->last_duration--;
+		}
+
+		/* Handle pause notes */
+		if (!ctx->last_tone)
+			return 0x8000;
+
+		pos = (2 * PI_SAMPLES * ctx->note_offset * ctx->last_tone) / S302M_SAMPLING_RATE_HZ;
+		ctx->note_offset++;
+
+		return (fixp_sin32(pos % (2 * PI_SAMPLES)) >> 16) + 0x8000;
+	}
+
+	/* bug somewhere */
+	if (e->src_buf_offset > e->src_buf_sz) {
+		pr_err_ratelimited("overflow detected: %d > %d, wrapping.\n",
+				   e->src_buf_offset,
+				   e->src_buf_sz);
+
+		e->src_buf_offset = 0;
+	}
+
+	if (e->src_buf_offset >= e->src_buf_sz) {
+		/* let the source know we are out of data */
+		if (e->last_sample_cb)
+			e->last_sample_cb(e->sample_count);
+
+		e->src_buf_offset = 0;
+	}
+
+	sample = *(u16 *)(e->src_buf + e->src_buf_offset);
+
+	return sample;
+}
+
+static u32 vidtv_s302m_write_frame(struct vidtv_encoder *e,
+				   u16 sample)
+{
+	struct vidtv_s302m_ctx *ctx = e->ctx;
+	struct vidtv_s302m_frame_16 f = {};
+	u32 nbytes = 0;
+
+	/* from ffmpeg: see s302enc.c */
+
+	u8 vucf = ctx->frame_index == 0 ? 0x10 : 0;
+
+	f.data[0] = sample & 0xFF;
+	f.data[1] = (sample & 0xFF00) >>  8;
+	f.data[2] = ((sample & 0x0F)  <<  4) | vucf;
+	f.data[3] = (sample & 0x0FF0) >>  4;
+	f.data[4] = (sample & 0xF000) >> 12;
+
+	f.data[0] = reverse[f.data[0]];
+	f.data[1] = reverse[f.data[1]];
+	f.data[2] = reverse[f.data[2]];
+	f.data[3] = reverse[f.data[3]];
+	f.data[4] = reverse[f.data[4]];
+
+	nbytes += vidtv_memcpy(e->encoder_buf,
+			       e->encoder_buf_offset,
+			       VIDTV_S302M_BUF_SZ,
+			       &f,
+			       sizeof(f));
+
+	e->encoder_buf_offset += nbytes;
+
+	ctx->frame_index++;
+	if (ctx->frame_index >= S302M_BLOCK_SZ)
+		ctx->frame_index = 0;
+
+	return nbytes;
+}
+
+static u32 vidtv_s302m_write_h(struct vidtv_encoder *e, u32 p_sz)
+{
+	struct vidtv_smpte_s302m_es h = {};
+	u32 nbytes = 0;
+
+	/* 2 channels, ident: 0, 16 bits per sample */
+	h.bitfield = cpu_to_be32((p_sz << 16));
+
+	nbytes += vidtv_memcpy(e->encoder_buf,
+			       e->encoder_buf_offset,
+			       e->encoder_buf_sz,
+			       &h,
+			       sizeof(h));
+
+	e->encoder_buf_offset += nbytes;
+	return nbytes;
+}
+
+static void vidtv_s302m_write_frames(struct vidtv_encoder *e)
+{
+	struct vidtv_access_unit *au = e->access_units;
+	struct vidtv_s302m_ctx *ctx = e->ctx;
+	u32 nbytes_per_unit = 0;
+	u32 nbytes = 0;
+	u32 au_sz = 0;
+	u16 sample;
+	u32 j;
+
+	while (au) {
+		au_sz = au->num_samples *
+			sizeof(struct vidtv_s302m_frame_16);
+
+		nbytes_per_unit = vidtv_s302m_write_h(e, au_sz);
+
+		for (j = 0; j < au->num_samples; ++j) {
+			sample = vidtv_s302m_get_sample(e);
+			nbytes_per_unit += vidtv_s302m_write_frame(e, sample);
+
+			if (e->src_buf)
+				e->src_buf_offset += sizeof(u16);
+
+			e->sample_count++;
+		}
+
+		au->nbytes = nbytes_per_unit;
+
+		if (au_sz + sizeof(struct vidtv_smpte_s302m_es) != nbytes_per_unit) {
+			pr_warn_ratelimited("write size was %u, expected %zu\n",
+					    nbytes_per_unit,
+					    au_sz + sizeof(struct vidtv_smpte_s302m_es));
+		}
+
+		nbytes += nbytes_per_unit;
+		au->offset = nbytes - nbytes_per_unit;
+
+		nbytes_per_unit = 0;
+		ctx->au_count++;
+
+		au = au->next;
+	}
+}
+
+static void *vidtv_s302m_encode(struct vidtv_encoder *e)
+{
+	struct vidtv_s302m_ctx *ctx = e->ctx;
+
+	/*
+	 * According to SMPTE 302M, an audio access unit is specified as those
+	 * AES3 words that are associated with a corresponding video frame.
+	 * Therefore, there is one audio access unit for every video access unit
+	 * in the corresponding video encoder ('sync'), using the same values
+	 * for PTS as used by the video encoder.
+	 *
+	 * Assuming that it is also possible to send audio without any
+	 * associated video, as in a radio-like service, a single audio access unit
+	 * is created with values for 'num_samples' and 'pts' taken empirically from
+	 * ffmpeg
+	 */
+
+	vidtv_s302m_access_unit_destroy(e);
+	vidtv_s302m_alloc_au(e);
+
+	if (e->sync && e->sync->is_video_encoder) {
+		vidtv_s302m_compute_sample_count_from_video(e);
+		vidtv_s302m_compute_pts_from_video(e);
+	} else {
+		e->access_units->num_samples = FF_S302M_DEFAULT_NUM_FRAMES;
+		e->access_units->pts = (ctx->au_count * FF_S302M_DEFAULT_PTS_INCREMENT) +
+				       FF_S302M_DEFAULT_PTS_OFFSET;
+	}
+
+	vidtv_s302m_write_frames(e);
+
+	return e->encoder_buf;
+}
+
+static u32 vidtv_s302m_clear(struct vidtv_encoder *e)
+{
+	struct vidtv_access_unit *au = e->access_units;
+	u32 count = 0;
+
+	while (au) {
+		count++;
+		au = au->next;
+	}
+
+	vidtv_s302m_access_unit_destroy(e);
+	memset(e->encoder_buf, 0, VIDTV_S302M_BUF_SZ);
+	e->encoder_buf_offset = 0;
+
+	return count;
+}
+
+struct vidtv_encoder
+*vidtv_s302m_encoder_init(struct vidtv_s302m_encoder_init_args args)
+{
+	u32 priv_sz = sizeof(struct vidtv_s302m_ctx);
+	struct vidtv_s302m_ctx *ctx;
+	struct vidtv_encoder *e;
+
+	e = kzalloc_obj(*e);
+	if (!e)
+		return NULL;
+
+	e->id = S302M;
+
+	if (args.name)
+		e->name = kstrdup(args.name, GFP_KERNEL);
+
+	e->encoder_buf = vzalloc(VIDTV_S302M_BUF_SZ);
+	if (!e->encoder_buf)
+		goto out_kfree_e;
+
+	e->encoder_buf_sz = VIDTV_S302M_BUF_SZ;
+	e->encoder_buf_offset = 0;
+
+	e->sample_count = 0;
+
+	e->src_buf = (args.src_buf) ? args.src_buf : NULL;
+	e->src_buf_sz = (args.src_buf) ? args.src_buf_sz : 0;
+	e->src_buf_offset = 0;
+
+	e->is_video_encoder = false;
+
+	ctx = kzalloc(priv_sz, GFP_KERNEL);
+	if (!ctx)
+		goto out_kfree_buf;
+
+	e->ctx = ctx;
+	ctx->last_duration = 0;
+
+	e->encode = vidtv_s302m_encode;
+	e->clear = vidtv_s302m_clear;
+
+	e->es_pid = cpu_to_be16(args.es_pid);
+	e->stream_id = cpu_to_be16(PES_PRIVATE_STREAM_1);
+
+	e->sync = args.sync;
+	e->sampling_rate_hz = S302M_SAMPLING_RATE_HZ;
+
+	e->last_sample_cb = args.last_sample_cb;
+
+	e->destroy = vidtv_s302m_encoder_destroy;
+
+	if (args.head) {
+		while (args.head->next)
+			args.head = args.head->next;
+
+		args.head->next = e;
+	}
+
+	e->next = NULL;
+
+	return e;
+
+out_kfree_buf:
+	vfree(e->encoder_buf);
+
+out_kfree_e:
+	kfree(e->name);
+	kfree(e);
+	return NULL;
+}
+
+void vidtv_s302m_encoder_destroy(struct vidtv_encoder *e)
+{
+	if (e->id != S302M) {
+		pr_err_ratelimited("Encoder type mismatch, skipping.\n");
+		return;
+	}
+
+	vidtv_s302m_access_unit_destroy(e);
+	kfree(e->name);
+	vfree(e->encoder_buf);
+	kfree(e->ctx);
+	kfree(e);
+}
diff --git a/drivers/media/test-drivers/vidtv/vidtv_s302m.h b/drivers/media/test-drivers/vidtv/vidtv_s302m.h
new file mode 100644
index 000000000..9cc94e4a8
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_s302m.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Vidtv serves as a reference DVB driver and helps validate the existing APIs
+ * in the media subsystem. It can also aid developers working on userspace
+ * applications.
+ *
+ * This file contains the code for an AES3 (also known as AES/EBU) encoder.
+ * It is based on EBU Tech 3250 and SMPTE 302M technical documents.
+ *
+ * This encoder currently supports 16bit AES3 subframes using 16bit signed
+ * integers.
+ *
+ * Note: AU stands for Access Unit, and AAU stands for Audio Access Unit
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#ifndef VIDTV_S302M_H
+#define VIDTV_S302M_H
+
+#include <linux/types.h>
+
+#include "vidtv_encoder.h"
+
+/* see SMPTE 302M 2007 clause 7.3 */
+#define VIDTV_S302M_BUF_SZ 65024
+
+/* see ETSI TS 102 154 v.1.2.1 clause 7.3.5 */
+#define VIDTV_S302M_FORMAT_IDENTIFIER 0x42535344
+
+/**
+ * struct vidtv_s302m_ctx - s302m encoder context.
+ * @enc: A pointer to the containing encoder structure.
+ * @frame_index: The current frame in a block
+ * @au_count: The total number of access units encoded up to now
+ * @last_duration: Duration of the tone currently being played
+ * @note_offset: Position at the music tone array
+ * @last_tone: Tone currently being played
+ */
+struct vidtv_s302m_ctx {
+	struct vidtv_encoder *enc;
+	u32 frame_index;
+	u32 au_count;
+	int last_duration;
+	unsigned int note_offset;
+	enum musical_notes last_tone;
+};
+
+/*
+ * struct vidtv_smpte_s302m_es - s302m MPEG Elementary Stream header.
+ *
+ * See SMPTE 302M 2007 table 1.
+ */
+struct vidtv_smpte_s302m_es {
+	/*
+	 *
+	 * audio_packet_size:16;
+	 * num_channels:2;
+	 * channel_identification:8;
+	 * bits_per_sample:2; // 0x0 for 16bits
+	 * zero:4;
+	 */
+	__be32 bitfield;
+} __packed;
+
+struct vidtv_s302m_frame_16 {
+	u8 data[5];
+} __packed;
+
+/**
+ * struct vidtv_s302m_encoder_init_args - Args for the s302m encoder.
+ *
+ * @name: A name to identify this particular instance
+ * @src_buf: The source buffer, encoder will default to a sine wave if this is NULL.
+ * @src_buf_sz: The size of the source buffer.
+ * @es_pid: The MPEG Elementary Stream PID to use.
+ * @sync: Attempt to synchronize audio with this video encoder, if not NULL.
+ * @last_sample_cb: A callback called when the encoder runs out of data.
+ * @head: Add to this chain
+ */
+struct vidtv_s302m_encoder_init_args {
+	char *name;
+	void *src_buf;
+	u32 src_buf_sz;
+	u16 es_pid;
+	struct vidtv_encoder *sync;
+	void (*last_sample_cb)(u32 sample_no);
+
+	struct vidtv_encoder *head;
+};
+
+struct vidtv_encoder
+*vidtv_s302m_encoder_init(struct vidtv_s302m_encoder_init_args args);
+
+void vidtv_s302m_encoder_destroy(struct vidtv_encoder *encoder);
+
+#endif /* VIDTV_S302M_H */
diff --git a/drivers/media/test-drivers/vidtv/vidtv_ts.c b/drivers/media/test-drivers/vidtv/vidtv_ts.c
new file mode 100644
index 000000000..cbe9aff9f
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_ts.c
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * The Virtual DVB test driver serves as a reference DVB driver and helps
+ * validate the existing APIs in the media subsystem. It can also aid
+ * developers working on userspace applications.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__
+
+#include <linux/math64.h>
+#include <linux/printk.h>
+#include <linux/ratelimit.h>
+#include <linux/types.h>
+
+#include "vidtv_common.h"
+#include "vidtv_ts.h"
+
+static u32 vidtv_ts_write_pcr_bits(u8 *to, u32 to_offset, u64 pcr)
+{
+	/* Exact same from ffmpeg. PCR is a counter driven by a 27Mhz clock */
+	u64 div;
+	u64 rem;
+	u8 *buf = to + to_offset;
+	u64 pcr_low;
+	u64 pcr_high;
+
+	div = div64_u64_rem(pcr, 300, &rem);
+
+	pcr_low = rem; /* pcr_low = pcr % 300 */
+	pcr_high = div; /* pcr_high = pcr / 300 */
+
+	*buf++ = pcr_high >> 25;
+	*buf++ = pcr_high >> 17;
+	*buf++ = pcr_high >>  9;
+	*buf++ = pcr_high >>  1;
+	*buf++ = pcr_high <<  7 | pcr_low >> 8 | 0x7e;
+	*buf++ = pcr_low;
+
+	return 6;
+}
+
+void vidtv_ts_inc_cc(u8 *continuity_counter)
+{
+	++*continuity_counter;
+	if (*continuity_counter > TS_CC_MAX_VAL)
+		*continuity_counter = 0;
+}
+
+u32 vidtv_ts_null_write_into(const struct null_packet_write_args *args)
+{
+	u32 nbytes = 0;
+	struct vidtv_mpeg_ts ts_header = {};
+
+	ts_header.sync_byte          = TS_SYNC_BYTE;
+	ts_header.bitfield           = cpu_to_be16(TS_NULL_PACKET_PID);
+	ts_header.payload            = 1;
+	ts_header.continuity_counter = *args->continuity_counter;
+
+	/* copy TS header */
+	nbytes += vidtv_memcpy(args->dest_buf,
+			       args->dest_offset + nbytes,
+			       args->buf_sz,
+			       &ts_header,
+			       sizeof(ts_header));
+
+	vidtv_ts_inc_cc(args->continuity_counter);
+
+	/* fill the rest with empty data */
+	nbytes += vidtv_memset(args->dest_buf,
+			       args->dest_offset + nbytes,
+			       args->buf_sz,
+			       TS_FILL_BYTE,
+			       TS_PACKET_LEN - nbytes);
+
+	/* we should have written exactly _one_ 188byte packet */
+	if (nbytes != TS_PACKET_LEN)
+		pr_warn_ratelimited("Expected exactly %d bytes, got %d\n",
+				    TS_PACKET_LEN,
+				    nbytes);
+
+	return nbytes;
+}
+
+u32 vidtv_ts_pcr_write_into(const struct pcr_write_args *args)
+{
+	u32 nbytes = 0;
+	struct vidtv_mpeg_ts ts_header = {};
+	struct vidtv_mpeg_ts_adaption ts_adap = {};
+
+	ts_header.sync_byte     = TS_SYNC_BYTE;
+	ts_header.bitfield      = cpu_to_be16(args->pid);
+	ts_header.scrambling    = 0;
+	/* cc is not incremented, but it is needed. see 13818-1 clause 2.4.3.3 */
+	ts_header.continuity_counter = *args->continuity_counter;
+	ts_header.payload            = 0;
+	ts_header.adaptation_field   = 1;
+
+	/* 13818-1 clause 2.4.3.5 */
+	ts_adap.length = 183;
+	ts_adap.PCR    = 1;
+
+	/* copy TS header */
+	nbytes += vidtv_memcpy(args->dest_buf,
+			       args->dest_offset + nbytes,
+			       args->buf_sz,
+			       &ts_header,
+			       sizeof(ts_header));
+
+	/* write the adap after the TS header */
+	nbytes += vidtv_memcpy(args->dest_buf,
+			       args->dest_offset + nbytes,
+			       args->buf_sz,
+			       &ts_adap,
+			       sizeof(ts_adap));
+
+	/* write the PCR optional */
+	nbytes += vidtv_ts_write_pcr_bits(args->dest_buf,
+					  args->dest_offset + nbytes,
+					  args->pcr);
+
+	nbytes += vidtv_memset(args->dest_buf,
+			       args->dest_offset + nbytes,
+			       args->buf_sz,
+			       TS_FILL_BYTE,
+			       TS_PACKET_LEN - nbytes);
+
+	/* we should have written exactly _one_ 188byte packet */
+	if (nbytes != TS_PACKET_LEN)
+		pr_warn_ratelimited("Expected exactly %d bytes, got %d\n",
+				    TS_PACKET_LEN,
+				    nbytes);
+
+	return nbytes;
+}
diff --git a/drivers/media/test-drivers/vidtv/vidtv_ts.h b/drivers/media/test-drivers/vidtv/vidtv_ts.h
new file mode 100644
index 000000000..3606398e1
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_ts.h
@@ -0,0 +1,106 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * The Virtual DVB test driver serves as a reference DVB driver and helps
+ * validate the existing APIs in the media subsystem. It can also aid
+ * developers working on userspace applications.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#ifndef VIDTV_TS_H
+#define VIDTV_TS_H
+
+#include <linux/types.h>
+
+#define TS_SYNC_BYTE 0x47
+#define TS_PACKET_LEN 188
+#define TS_PAYLOAD_LEN 184
+#define TS_NULL_PACKET_PID 0x1fff
+#define TS_CC_MAX_VAL 0x0f /* 4 bits */
+#define TS_LAST_VALID_PID 8191
+#define TS_FILL_BYTE 0xff /* the byte used in packet stuffing */
+
+struct vidtv_mpeg_ts_adaption {
+	u8 length;
+	struct {
+		u8 extension:1;
+		u8 private_data:1;
+		u8 splicing_point:1;
+		u8 OPCR:1;
+		u8 PCR:1;
+		u8 priority:1;
+		u8 random_access:1;
+		u8 discontinued:1;
+	} __packed;
+	u8 data[];
+} __packed;
+
+struct vidtv_mpeg_ts {
+	u8 sync_byte;
+	__be16 bitfield; /* tei: 1, payload_start:1 priority: 1, pid:13 */
+	struct {
+		u8 continuity_counter:4;
+		u8 payload:1;
+		u8 adaptation_field:1;
+		u8 scrambling:2;
+	} __packed;
+} __packed;
+
+/**
+ * struct pcr_write_args - Arguments for the pcr_write_into function.
+ * @dest_buf: The buffer to write into.
+ * @dest_offset: The byte offset into the buffer.
+ * @pid: The TS PID for the PCR packets.
+ * @buf_sz: The size of the buffer in bytes.
+ * @continuity_counter: The TS continuity_counter.
+ * @pcr: A sample from the system clock.
+ */
+struct pcr_write_args {
+	void *dest_buf;
+	u32 dest_offset;
+	u16 pid;
+	u32 buf_sz;
+	u8 *continuity_counter;
+	u64 pcr;
+};
+
+/**
+ * struct null_packet_write_args - Arguments for the null_write_into function
+ * @dest_buf: The buffer to write into.
+ * @dest_offset: The byte offset into the buffer.
+ * @buf_sz: The size of the buffer in bytes.
+ * @continuity_counter: The TS continuity_counter.
+ */
+struct null_packet_write_args {
+	void *dest_buf;
+	u32 dest_offset;
+	u32 buf_sz;
+	u8 *continuity_counter;
+};
+
+/* Increment the continuity counter */
+void vidtv_ts_inc_cc(u8 *continuity_counter);
+
+/**
+ * vidtv_ts_null_write_into - Write a TS null packet into a buffer.
+ * @args: the arguments to use when writing.
+ *
+ * This function will write a null packet into a buffer. This is usually used to
+ * pad TS streams.
+ *
+ * Return: The number of bytes written into the buffer.
+ */
+u32 vidtv_ts_null_write_into(const struct null_packet_write_args *args);
+
+/**
+ * vidtv_ts_pcr_write_into - Write a PCR  packet into a buffer.
+ * @args: the arguments to use when writing.
+ *
+ * This function will write a PCR packet into a buffer. This is used to
+ * synchronize the clocks between encoders and decoders.
+ *
+ * Return: The number of bytes written into the buffer.
+ */
+u32 vidtv_ts_pcr_write_into(const struct pcr_write_args *args);
+
+#endif //VIDTV_TS_H
diff --git a/drivers/media/test-drivers/vidtv/vidtv_tuner.c b/drivers/media/test-drivers/vidtv/vidtv_tuner.c
new file mode 100644
index 000000000..bd50b86e9
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_tuner.c
@@ -0,0 +1,436 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * The Virtual DVB test driver serves as a reference DVB driver and helps
+ * validate the existing APIs in the media subsystem. It can also aid
+ * developers working on userspace applications.
+ *
+ * The vidtv tuner should support common TV standards such as
+ * DVB-T/T2/S/S2, ISDB-T and ATSC when completed.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#include <linux/errno.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/ratelimit.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <media/dvb_frontend.h>
+
+#include "vidtv_tuner.h"
+
+struct vidtv_tuner_cnr_to_qual_s {
+	/* attempt to use the same values as libdvbv5 */
+	u32 modulation;
+	u32 fec;
+	u32 cnr_ok;
+	u32 cnr_good;
+};
+
+static const struct vidtv_tuner_cnr_to_qual_s vidtv_tuner_c_cnr_2_qual[] = {
+	/* from libdvbv5 source code, in milli db */
+	{ QAM_256, FEC_NONE,  34000, 38000},
+	{ QAM_64,  FEC_NONE,  30000, 34000},
+};
+
+static const struct vidtv_tuner_cnr_to_qual_s vidtv_tuner_s_cnr_2_qual[] = {
+	/* from libdvbv5 source code, in milli db */
+	{ QPSK, FEC_1_2,  7000, 10000},
+	{ QPSK, FEC_2_3,  9000, 12000},
+	{ QPSK, FEC_3_4, 10000, 13000},
+	{ QPSK, FEC_5_6, 11000, 14000},
+	{ QPSK, FEC_7_8, 12000, 15000},
+};
+
+static const struct vidtv_tuner_cnr_to_qual_s vidtv_tuner_s2_cnr_2_qual[] = {
+	/* from libdvbv5 source code, in milli db */
+	{ QPSK,  FEC_1_2,   9000,  12000},
+	{ QPSK,  FEC_2_3,  11000,  14000},
+	{ QPSK,  FEC_3_4,  12000,  15000},
+	{ QPSK,  FEC_5_6,  12000,  15000},
+	{ QPSK,  FEC_8_9,  13000,  16000},
+	{ QPSK,  FEC_9_10, 13500,  16500},
+	{ PSK_8, FEC_2_3,  14500,  17500},
+	{ PSK_8, FEC_3_4,  16000,  19000},
+	{ PSK_8, FEC_5_6,  17500,  20500},
+	{ PSK_8, FEC_8_9,  19000,  22000},
+};
+
+static const struct vidtv_tuner_cnr_to_qual_s vidtv_tuner_t_cnr_2_qual[] = {
+	/* from libdvbv5 source code, in milli db*/
+	{   QPSK, FEC_1_2,  4100,  5900},
+	{   QPSK, FEC_2_3,  6100,  9600},
+	{   QPSK, FEC_3_4,  7200, 12400},
+	{   QPSK, FEC_5_6,  8500, 15600},
+	{   QPSK, FEC_7_8,  9200, 17500},
+	{ QAM_16, FEC_1_2,  9800, 11800},
+	{ QAM_16, FEC_2_3, 12100, 15300},
+	{ QAM_16, FEC_3_4, 13400, 18100},
+	{ QAM_16, FEC_5_6, 14800, 21300},
+	{ QAM_16, FEC_7_8, 15700, 23600},
+	{ QAM_64, FEC_1_2, 14000, 16000},
+	{ QAM_64, FEC_2_3, 19900, 25400},
+	{ QAM_64, FEC_3_4, 24900, 27900},
+	{ QAM_64, FEC_5_6, 21300, 23300},
+	{ QAM_64, FEC_7_8, 22000, 24000},
+};
+
+/**
+ * struct vidtv_tuner_hardware_state - Simulate the tuner hardware status
+ * @asleep: whether the tuner is asleep, i.e whether _sleep() or _suspend() was
+ * called.
+ * @lock_status: Whether the tuner has managed to lock on the requested
+ * frequency.
+ * @if_frequency: The tuner's intermediate frequency. Hardcoded for the purposes
+ * of simulation.
+ * @tuned_frequency: The actual tuned frequency.
+ * @bandwidth: The actual bandwidth.
+ *
+ * This structure is meant to simulate the status of the tuner hardware, as if
+ * we had a physical tuner hardware.
+ */
+struct vidtv_tuner_hardware_state {
+	bool asleep;
+	u32 lock_status;
+	u32 if_frequency;
+	u32 tuned_frequency;
+	u32 bandwidth;
+};
+
+/**
+ * struct vidtv_tuner_dev - The tuner struct
+ * @fe: A pointer to the dvb_frontend structure allocated by vidtv_demod
+ * @hw_state: A struct to simulate the tuner's hardware state as if we had a
+ * physical tuner hardware.
+ * @config: The configuration used to start the tuner module, usually filled
+ * by a bridge driver. For vidtv, this is filled by vidtv_bridge before the
+ * tuner module is probed.
+ */
+struct vidtv_tuner_dev {
+	struct dvb_frontend *fe;
+	struct vidtv_tuner_hardware_state hw_state;
+	struct vidtv_tuner_config config;
+};
+
+static struct vidtv_tuner_dev*
+vidtv_tuner_get_dev(struct dvb_frontend *fe)
+{
+	return i2c_get_clientdata(fe->tuner_priv);
+}
+
+static int vidtv_tuner_check_frequency_shift(struct dvb_frontend *fe)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct vidtv_tuner_config config  = tuner_dev->config;
+	u32 *valid_freqs = NULL;
+	u32 array_sz = 0;
+	u32 i;
+	u32 shift;
+
+	switch (c->delivery_system) {
+	case SYS_DVBT:
+	case SYS_DVBT2:
+		valid_freqs = config.vidtv_valid_dvb_t_freqs;
+		array_sz    = ARRAY_SIZE(config.vidtv_valid_dvb_t_freqs);
+		break;
+	case SYS_DVBS:
+	case SYS_DVBS2:
+		valid_freqs = config.vidtv_valid_dvb_s_freqs;
+		array_sz    = ARRAY_SIZE(config.vidtv_valid_dvb_s_freqs);
+		break;
+	case SYS_DVBC_ANNEX_A:
+		valid_freqs = config.vidtv_valid_dvb_c_freqs;
+		array_sz    = ARRAY_SIZE(config.vidtv_valid_dvb_c_freqs);
+		break;
+
+	default:
+		dev_warn(fe->dvb->device,
+			 "%s: unsupported delivery system: %u\n",
+			 __func__,
+			 c->delivery_system);
+
+		return -EINVAL;
+	}
+
+	for (i = 0; i < array_sz; i++) {
+		if (!valid_freqs[i])
+			break;
+		shift = abs(c->frequency - valid_freqs[i]);
+
+		if (!shift)
+			return 0;
+
+		/*
+		 * This will provide a value from 0 to 100 that would
+		 * indicate how far is the tuned frequency from the
+		 * right one.
+		 */
+		if (shift < config.max_frequency_shift_hz)
+			return shift * 100 / config.max_frequency_shift_hz;
+	}
+
+	return -EINVAL;
+}
+
+static int
+vidtv_tuner_get_signal_strength(struct dvb_frontend *fe, u16 *strength)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+	const struct vidtv_tuner_cnr_to_qual_s *cnr2qual = NULL;
+	struct device *dev = fe->dvb->device;
+	u32 array_size = 0;
+	s32 shift;
+	u32 i;
+
+	shift = vidtv_tuner_check_frequency_shift(fe);
+	if (shift < 0) {
+		tuner_dev->hw_state.lock_status = 0;
+		*strength = 0;
+		return 0;
+	}
+
+	switch (c->delivery_system) {
+	case SYS_DVBT:
+	case SYS_DVBT2:
+		cnr2qual   = vidtv_tuner_t_cnr_2_qual;
+		array_size = ARRAY_SIZE(vidtv_tuner_t_cnr_2_qual);
+		break;
+
+	case SYS_DVBS:
+		cnr2qual   = vidtv_tuner_s_cnr_2_qual;
+		array_size = ARRAY_SIZE(vidtv_tuner_s_cnr_2_qual);
+		break;
+
+	case SYS_DVBS2:
+		cnr2qual   = vidtv_tuner_s2_cnr_2_qual;
+		array_size = ARRAY_SIZE(vidtv_tuner_s2_cnr_2_qual);
+		break;
+
+	case SYS_DVBC_ANNEX_A:
+		cnr2qual   = vidtv_tuner_c_cnr_2_qual;
+		array_size = ARRAY_SIZE(vidtv_tuner_c_cnr_2_qual);
+		break;
+
+	default:
+		dev_warn_ratelimited(dev,
+				     "%s: unsupported delivery system: %u\n",
+				     __func__,
+				     c->delivery_system);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < array_size; i++) {
+		if (cnr2qual[i].modulation != c->modulation ||
+		    cnr2qual[i].fec != c->fec_inner)
+			continue;
+
+		if (!shift) {
+			*strength = cnr2qual[i].cnr_good;
+			return 0;
+		}
+		/*
+		 * Channel tuned at wrong frequency. Simulate that the
+		 * Carrier S/N ratio is not too good.
+		 */
+
+		*strength = cnr2qual[i].cnr_ok -
+			    (cnr2qual[i].cnr_good - cnr2qual[i].cnr_ok);
+		return 0;
+	}
+
+	/*
+	 * do a linear interpolation between 34dB and 10dB if we can't
+	 * match against the table
+	 */
+	*strength = 34000 - 24000 * shift / 100;
+	return 0;
+}
+
+static int vidtv_tuner_init(struct dvb_frontend *fe)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+	struct vidtv_tuner_config config  = tuner_dev->config;
+
+	msleep_interruptible(config.mock_power_up_delay_msec);
+
+	tuner_dev->hw_state.asleep = false;
+	tuner_dev->hw_state.if_frequency = 5000;
+
+	return 0;
+}
+
+static int vidtv_tuner_sleep(struct dvb_frontend *fe)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+
+	tuner_dev->hw_state.asleep = true;
+	return 0;
+}
+
+static int vidtv_tuner_suspend(struct dvb_frontend *fe)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+
+	tuner_dev->hw_state.asleep = true;
+	return 0;
+}
+
+static int vidtv_tuner_resume(struct dvb_frontend *fe)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+
+	tuner_dev->hw_state.asleep = false;
+	return 0;
+}
+
+static int vidtv_tuner_set_params(struct dvb_frontend *fe)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+	struct vidtv_tuner_config config  = tuner_dev->config;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	s32 shift;
+
+	u32 min_freq = fe->ops.tuner_ops.info.frequency_min_hz;
+	u32 max_freq = fe->ops.tuner_ops.info.frequency_max_hz;
+	u32 min_bw = fe->ops.tuner_ops.info.bandwidth_min;
+	u32 max_bw = fe->ops.tuner_ops.info.bandwidth_max;
+
+	if (c->frequency < min_freq  || c->frequency > max_freq  ||
+	    c->bandwidth_hz < min_bw || c->bandwidth_hz > max_bw) {
+		tuner_dev->hw_state.lock_status = 0;
+		return -EINVAL;
+	}
+
+	tuner_dev->hw_state.tuned_frequency = c->frequency;
+	tuner_dev->hw_state.bandwidth = c->bandwidth_hz;
+	tuner_dev->hw_state.lock_status = TUNER_STATUS_LOCKED;
+
+	msleep_interruptible(config.mock_tune_delay_msec);
+
+	shift = vidtv_tuner_check_frequency_shift(fe);
+	if (shift < 0) {
+		tuner_dev->hw_state.lock_status = 0;
+		return shift;
+	}
+
+	return 0;
+}
+
+static int vidtv_tuner_set_config(struct dvb_frontend *fe,
+				  void *priv_cfg)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+
+	memcpy(&tuner_dev->config, priv_cfg, sizeof(tuner_dev->config));
+
+	return 0;
+}
+
+static int vidtv_tuner_get_frequency(struct dvb_frontend *fe,
+				     u32 *frequency)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+
+	*frequency = tuner_dev->hw_state.tuned_frequency;
+
+	return 0;
+}
+
+static int vidtv_tuner_get_bandwidth(struct dvb_frontend *fe,
+				     u32 *bandwidth)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+
+	*bandwidth = tuner_dev->hw_state.bandwidth;
+
+	return 0;
+}
+
+static int vidtv_tuner_get_if_frequency(struct dvb_frontend *fe,
+					u32 *frequency)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+
+	*frequency = tuner_dev->hw_state.if_frequency;
+
+	return 0;
+}
+
+static int vidtv_tuner_get_status(struct dvb_frontend *fe, u32 *status)
+{
+	struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe);
+
+	*status = tuner_dev->hw_state.lock_status;
+
+	return 0;
+}
+
+static const struct dvb_tuner_ops vidtv_tuner_ops = {
+	.init             = vidtv_tuner_init,
+	.sleep            = vidtv_tuner_sleep,
+	.suspend          = vidtv_tuner_suspend,
+	.resume           = vidtv_tuner_resume,
+	.set_params       = vidtv_tuner_set_params,
+	.set_config       = vidtv_tuner_set_config,
+	.get_bandwidth    = vidtv_tuner_get_bandwidth,
+	.get_frequency    = vidtv_tuner_get_frequency,
+	.get_if_frequency = vidtv_tuner_get_if_frequency,
+	.get_status       = vidtv_tuner_get_status,
+	.get_rf_strength  = vidtv_tuner_get_signal_strength
+};
+
+static const struct i2c_device_id vidtv_tuner_i2c_id_table[] = {
+	{ .name = "dvb_vidtv_tuner" },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, vidtv_tuner_i2c_id_table);
+
+static int vidtv_tuner_i2c_probe(struct i2c_client *client)
+{
+	struct vidtv_tuner_config *config = client->dev.platform_data;
+	struct dvb_frontend *fe           = config->fe;
+	struct vidtv_tuner_dev *tuner_dev = NULL;
+
+	tuner_dev = kzalloc_obj(*tuner_dev);
+	if (!tuner_dev)
+		return -ENOMEM;
+
+	tuner_dev->fe = config->fe;
+	i2c_set_clientdata(client, tuner_dev);
+
+	memcpy(&fe->ops.tuner_ops,
+	       &vidtv_tuner_ops,
+	       sizeof(struct dvb_tuner_ops));
+
+	memcpy(&tuner_dev->config, config, sizeof(tuner_dev->config));
+	fe->tuner_priv = client;
+
+	return 0;
+}
+
+static void vidtv_tuner_i2c_remove(struct i2c_client *client)
+{
+	struct vidtv_tuner_dev *tuner_dev = i2c_get_clientdata(client);
+
+	kfree(tuner_dev);
+}
+
+static struct i2c_driver vidtv_tuner_i2c_driver = {
+	.driver = {
+		.name                = "dvb_vidtv_tuner",
+		.suppress_bind_attrs = true,
+	},
+	.probe    = vidtv_tuner_i2c_probe,
+	.remove   = vidtv_tuner_i2c_remove,
+	.id_table = vidtv_tuner_i2c_id_table,
+};
+module_i2c_driver(vidtv_tuner_i2c_driver);
+
+MODULE_DESCRIPTION("Virtual DVB Tuner");
+MODULE_AUTHOR("Daniel W. S. Almeida");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/test-drivers/vidtv/vidtv_tuner.h b/drivers/media/test-drivers/vidtv/vidtv_tuner.h
new file mode 100644
index 000000000..fd55346a5
--- /dev/null
+++ b/drivers/media/test-drivers/vidtv/vidtv_tuner.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * The Virtual DTV test driver serves as a reference DVB driver and helps
+ * validate the existing APIs in the media subsystem. It can also aid
+ * developers working on userspace applications.
+ *
+ * Copyright (C) 2020 Daniel W. S. Almeida
+ */
+
+#ifndef VIDTV_TUNER_H
+#define VIDTV_TUNER_H
+
+#include <linux/types.h>
+
+#include <media/dvb_frontend.h>
+
+#define NUM_VALID_TUNER_FREQS 8
+
+/**
+ * struct vidtv_tuner_config - Configuration used to init the tuner.
+ * @fe: A pointer to the dvb_frontend structure allocated by vidtv_demod.
+ * @mock_power_up_delay_msec: Simulate a power-up delay.
+ * @mock_tune_delay_msec: Simulate a tune delay.
+ * @vidtv_valid_dvb_t_freqs: The valid DVB-T frequencies to simulate.
+ * @vidtv_valid_dvb_c_freqs: The valid DVB-C frequencies to simulate.
+ * @vidtv_valid_dvb_s_freqs: The valid DVB-S frequencies to simulate.
+ * @max_frequency_shift_hz: The maximum frequency shift in HZ allowed when
+ * tuning in a channel
+ *
+ * The configuration used to init the tuner module, usually filled
+ * by a bridge driver. For vidtv, this is filled by vidtv_bridge before the
+ * tuner module is probed.
+ */
+struct vidtv_tuner_config {
+	struct dvb_frontend *fe;
+	u32 mock_power_up_delay_msec;
+	u32 mock_tune_delay_msec;
+	u32 vidtv_valid_dvb_t_freqs[NUM_VALID_TUNER_FREQS];
+	u32 vidtv_valid_dvb_c_freqs[NUM_VALID_TUNER_FREQS];
+	u32 vidtv_valid_dvb_s_freqs[NUM_VALID_TUNER_FREQS];
+	u8  max_frequency_shift_hz;
+};
+
+#endif //VIDTV_TUNER_H
diff --git a/drivers/media/test-drivers/vim2m.c b/drivers/media/test-drivers/vim2m.c
new file mode 100644
index 000000000..bb2dd11ee
--- /dev/null
+++ b/drivers/media/test-drivers/vim2m.c
@@ -0,0 +1,1615 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * A virtual v4l2-mem2mem example device.
+ *
+ * This is a virtual device driver for testing mem-to-mem vb2 framework.
+ * It simulates a device that uses memory buffers for both source and
+ * destination, processes the data and issues an "irq" (simulated by a delayed
+ * workqueue).
+ * The device is capable of multi-instance, multi-buffer-per-transaction
+ * operation (via the mem2mem framework).
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ * Pawel Osciak, <pawel@osciak.com>
+ * Marek Szyprowski, <m.szyprowski@samsung.com>
+ */
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include <linux/platform_device.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/videobuf2-vmalloc.h>
+#include <media/v4l2-common.h>
+
+MODULE_DESCRIPTION("Virtual device for mem2mem framework testing");
+MODULE_AUTHOR("Pawel Osciak, <pawel@osciak.com>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.2");
+MODULE_ALIAS("mem2mem_testdev");
+
+static unsigned int debug;
+module_param(debug, uint, 0644);
+MODULE_PARM_DESC(debug, "debug level");
+
+/* Default transaction time in msec */
+static unsigned int default_transtime = 40; /* Max 25 fps */
+module_param(default_transtime, uint, 0644);
+MODULE_PARM_DESC(default_transtime, "default transaction time in ms");
+
+static unsigned int multiplanar = 1;
+module_param(multiplanar, uint, 0644);
+MODULE_PARM_DESC(multiplanar, "1 (default) creates a single planar device, 2 creates multiplanar device.");
+
+#define MIN_W 32
+#define MIN_H 32
+#define MAX_W 640
+#define MAX_H 480
+
+/* Pixel alignment for non-bayer formats */
+#define WIDTH_ALIGN 2
+#define HEIGHT_ALIGN 1
+
+/* Pixel alignment for bayer formats */
+#define BAYER_WIDTH_ALIGN  2
+#define BAYER_HEIGHT_ALIGN 2
+
+/* Flags that indicate a format can be used for capture/output */
+#define MEM2MEM_CAPTURE	BIT(0)
+#define MEM2MEM_OUTPUT	BIT(1)
+
+#define MEM2MEM_NAME		"vim2m"
+
+/* Per queue */
+#define MEM2MEM_DEF_NUM_BUFS	VIDEO_MAX_FRAME
+/* In bytes, per queue */
+#define MEM2MEM_VID_MEM_LIMIT	(16 * 1024 * 1024)
+
+/* Flags that indicate processing mode */
+#define MEM2MEM_HFLIP	BIT(0)
+#define MEM2MEM_VFLIP	BIT(1)
+
+#define dprintk(dev, lvl, fmt, arg...) \
+	v4l2_dbg(lvl, debug, &(dev)->v4l2_dev, "%s: " fmt, __func__, ## arg)
+
+static void vim2m_dev_release(struct device *dev)
+{}
+
+static struct platform_device vim2m_pdev = {
+	.name		= MEM2MEM_NAME,
+	.dev.release	= vim2m_dev_release,
+};
+
+struct vim2m_fmt {
+	u32	fourcc;
+	int	depth;
+	/* Types the format can be used for */
+	u32     types;
+};
+
+static struct vim2m_fmt formats[] = {
+	{
+		.fourcc	= V4L2_PIX_FMT_RGB565,  /* rrrrrggg gggbbbbb */
+		.depth	= 16,
+		.types  = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
+	}, {
+		.fourcc	= V4L2_PIX_FMT_RGB565X, /* gggbbbbb rrrrrggg */
+		.depth	= 16,
+		.types  = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
+	}, {
+		.fourcc	= V4L2_PIX_FMT_RGB24,
+		.depth	= 24,
+		.types  = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
+	}, {
+		.fourcc	= V4L2_PIX_FMT_BGR24,
+		.depth	= 24,
+		.types  = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
+	}, {
+		.fourcc	= V4L2_PIX_FMT_YUYV,
+		.depth	= 16,
+		.types  = MEM2MEM_CAPTURE,
+	}, {
+		.fourcc	= V4L2_PIX_FMT_SBGGR8,
+		.depth	= 8,
+		.types  = MEM2MEM_CAPTURE,
+	}, {
+		.fourcc	= V4L2_PIX_FMT_SGBRG8,
+		.depth	= 8,
+		.types  = MEM2MEM_CAPTURE,
+	}, {
+		.fourcc	= V4L2_PIX_FMT_SGRBG8,
+		.depth	= 8,
+		.types  = MEM2MEM_CAPTURE,
+	}, {
+		.fourcc	= V4L2_PIX_FMT_SRGGB8,
+		.depth	= 8,
+		.types  = MEM2MEM_CAPTURE,
+	},
+};
+
+#define NUM_FORMATS ARRAY_SIZE(formats)
+
+/* Per-queue, driver-specific private data */
+struct vim2m_q_data {
+	unsigned int		width;
+	unsigned int		height;
+	unsigned int            num_mem_planes;
+	unsigned int		sizeimage[VIDEO_MAX_PLANES];
+	unsigned int		sequence;
+	struct vim2m_fmt	*fmt;
+};
+
+enum {
+	V4L2_M2M_SRC = 0,
+	V4L2_M2M_DST = 1,
+};
+
+#define V4L2_CID_TRANS_TIME_MSEC	(V4L2_CID_USER_BASE + 0x1000)
+#define V4L2_CID_TRANS_NUM_BUFS		(V4L2_CID_USER_BASE + 0x1001)
+
+static struct vim2m_fmt *find_format(u32 fourcc)
+{
+	struct vim2m_fmt *fmt;
+	unsigned int k;
+
+	for (k = 0; k < NUM_FORMATS; k++) {
+		fmt = &formats[k];
+		if (fmt->fourcc == fourcc)
+			break;
+	}
+
+	if (k == NUM_FORMATS)
+		return NULL;
+
+	return &formats[k];
+}
+
+static void get_alignment(u32 fourcc,
+			  unsigned int *walign, unsigned int *halign)
+{
+	switch (fourcc) {
+	case V4L2_PIX_FMT_SBGGR8:
+	case V4L2_PIX_FMT_SGBRG8:
+	case V4L2_PIX_FMT_SGRBG8:
+	case V4L2_PIX_FMT_SRGGB8:
+		*walign = BAYER_WIDTH_ALIGN;
+		*halign = BAYER_HEIGHT_ALIGN;
+		return;
+	default:
+		*walign = WIDTH_ALIGN;
+		*halign = HEIGHT_ALIGN;
+		return;
+	}
+}
+
+struct vim2m_dev {
+	struct v4l2_device	v4l2_dev;
+	struct video_device	vfd;
+	struct media_device	mdev;
+
+	atomic_t		num_inst;
+	struct mutex		dev_mutex;
+
+	struct v4l2_m2m_dev	*m2m_dev;
+	bool			multiplanar;
+};
+
+struct vim2m_ctx {
+	struct v4l2_fh		fh;
+	struct vim2m_dev	*dev;
+
+	struct v4l2_ctrl_handler hdl;
+
+	/* Processed buffers in this transaction */
+	u8			num_processed;
+
+	/* Transaction length (i.e. how many buffers per transaction) */
+	u32			translen;
+	/* Transaction time (i.e. simulated processing time) in milliseconds */
+	u32			transtime;
+
+	struct mutex		vb_mutex;
+	struct delayed_work	work_run;
+
+	/* Abort requested by m2m */
+	int			aborting;
+
+	/* Processing mode */
+	int			mode;
+
+	enum v4l2_colorspace	colorspace;
+	enum v4l2_ycbcr_encoding ycbcr_enc;
+	enum v4l2_xfer_func	xfer_func;
+	enum v4l2_quantization	quant;
+
+	/* Source and destination queue data */
+	struct vim2m_q_data   q_data[2];
+};
+
+static inline struct vim2m_ctx *file2ctx(struct file *file)
+{
+	return container_of(file_to_v4l2_fh(file), struct vim2m_ctx, fh);
+}
+
+static struct vim2m_q_data *get_q_data(struct vim2m_ctx *ctx,
+				       enum v4l2_buf_type type)
+{
+	switch (type) {
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		return &ctx->q_data[V4L2_M2M_SRC];
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+		return &ctx->q_data[V4L2_M2M_DST];
+	default:
+		return NULL;
+	}
+}
+
+static const char *type_name(enum v4l2_buf_type type)
+{
+	switch (type) {
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		return "Output";
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+		return "Capture";
+	default:
+		return "Invalid";
+	}
+}
+
+static void copy_line(struct vim2m_q_data *q_data_out,
+		      u8 *src, u8 *dst, bool reverse)
+{
+	int x, depth = q_data_out->fmt->depth >> 3;
+
+	if (!reverse) {
+		memcpy(dst, src, q_data_out->width * depth);
+	} else {
+		for (x = 0; x < q_data_out->width >> 1; x++) {
+			memcpy(dst, src, depth);
+			memcpy(dst + depth, src - depth, depth);
+			src -= depth << 1;
+			dst += depth << 1;
+		}
+		return;
+	}
+}
+
+static void copy_two_pixels(struct vim2m_q_data *q_data_in,
+			    struct vim2m_q_data *q_data_out,
+			    u8 *src[2], u8 **dst, int ypos, bool reverse)
+{
+	struct vim2m_fmt *out = q_data_out->fmt;
+	struct vim2m_fmt *in = q_data_in->fmt;
+	u8 _r[2], _g[2], _b[2], *r, *g, *b;
+	int i;
+
+	/* Step 1: read two consecutive pixels from src pointer */
+
+	r = _r;
+	g = _g;
+	b = _b;
+
+	switch (in->fourcc) {
+	case V4L2_PIX_FMT_RGB565: /* rrrrrggg gggbbbbb */
+		for (i = 0; i < 2; i++) {
+			u16 pix = le16_to_cpu(*(__le16 *)(src[i]));
+
+			*r++ = (u8)(((pix & 0xf800) >> 11) << 3) | 0x07;
+			*g++ = (u8)((((pix & 0x07e0) >> 5)) << 2) | 0x03;
+			*b++ = (u8)((pix & 0x1f) << 3) | 0x07;
+		}
+		break;
+	case V4L2_PIX_FMT_RGB565X: /* gggbbbbb rrrrrggg */
+		for (i = 0; i < 2; i++) {
+			u16 pix = be16_to_cpu(*(__be16 *)(src[i]));
+
+			*r++ = (u8)(((pix & 0xf800) >> 11) << 3) | 0x07;
+			*g++ = (u8)((((pix & 0x07e0) >> 5)) << 2) | 0x03;
+			*b++ = (u8)((pix & 0x1f) << 3) | 0x07;
+		}
+		break;
+	default:
+	case V4L2_PIX_FMT_RGB24:
+		for (i = 0; i < 2; i++) {
+			*r++ = src[i][0];
+			*g++ = src[i][1];
+			*b++ = src[i][2];
+		}
+		break;
+	case V4L2_PIX_FMT_BGR24:
+		for (i = 0; i < 2; i++) {
+			*b++ = src[i][0];
+			*g++ = src[i][1];
+			*r++ = src[i][2];
+		}
+		break;
+	}
+
+	/* Step 2: store two consecutive points, reversing them if needed */
+
+	r = _r;
+	g = _g;
+	b = _b;
+
+	switch (out->fourcc) {
+	case V4L2_PIX_FMT_RGB565: /* rrrrrggg gggbbbbb */
+		for (i = 0; i < 2; i++) {
+			u16 pix;
+			__le16 *dst_pix = (__le16 *)*dst;
+
+			pix = ((*r << 8) & 0xf800) | ((*g << 3) & 0x07e0) |
+			      (*b >> 3);
+
+			*dst_pix = cpu_to_le16(pix);
+
+			*dst += 2;
+		}
+		return;
+	case V4L2_PIX_FMT_RGB565X: /* gggbbbbb rrrrrggg */
+		for (i = 0; i < 2; i++) {
+			u16 pix;
+			__be16 *dst_pix = (__be16 *)*dst;
+
+			pix = ((*r << 8) & 0xf800) | ((*g << 3) & 0x07e0) |
+			      (*b >> 3);
+
+			*dst_pix = cpu_to_be16(pix);
+
+			*dst += 2;
+		}
+		return;
+	case V4L2_PIX_FMT_RGB24:
+		for (i = 0; i < 2; i++) {
+			*(*dst)++ = *r++;
+			*(*dst)++ = *g++;
+			*(*dst)++ = *b++;
+		}
+		return;
+	case V4L2_PIX_FMT_BGR24:
+		for (i = 0; i < 2; i++) {
+			*(*dst)++ = *b++;
+			*(*dst)++ = *g++;
+			*(*dst)++ = *r++;
+		}
+		return;
+	case V4L2_PIX_FMT_YUYV:
+	default:
+	{
+		u8 y, y1, u, v;
+
+		y = ((8453  * (*r) + 16594 * (*g) +  3223 * (*b)
+		     + 524288) >> 15);
+		u = ((-4878 * (*r) - 9578  * (*g) + 14456 * (*b)
+		     + 4210688) >> 15);
+		v = ((14456 * (*r++) - 12105 * (*g++) - 2351 * (*b++)
+		     + 4210688) >> 15);
+		y1 = ((8453 * (*r) + 16594 * (*g) +  3223 * (*b)
+		     + 524288) >> 15);
+
+		*(*dst)++ = y;
+		*(*dst)++ = u;
+
+		*(*dst)++ = y1;
+		*(*dst)++ = v;
+		return;
+	}
+	case V4L2_PIX_FMT_SBGGR8:
+		if (!(ypos & 1)) {
+			*(*dst)++ = *b;
+			*(*dst)++ = *++g;
+		} else {
+			*(*dst)++ = *g;
+			*(*dst)++ = *++r;
+		}
+		return;
+	case V4L2_PIX_FMT_SGBRG8:
+		if (!(ypos & 1)) {
+			*(*dst)++ = *g;
+			*(*dst)++ = *++b;
+		} else {
+			*(*dst)++ = *r;
+			*(*dst)++ = *++g;
+		}
+		return;
+	case V4L2_PIX_FMT_SGRBG8:
+		if (!(ypos & 1)) {
+			*(*dst)++ = *g;
+			*(*dst)++ = *++r;
+		} else {
+			*(*dst)++ = *b;
+			*(*dst)++ = *++g;
+		}
+		return;
+	case V4L2_PIX_FMT_SRGGB8:
+		if (!(ypos & 1)) {
+			*(*dst)++ = *r;
+			*(*dst)++ = *++g;
+		} else {
+			*(*dst)++ = *g;
+			*(*dst)++ = *++b;
+		}
+		return;
+	}
+}
+
+static int device_process(struct vim2m_ctx *ctx,
+			  struct vb2_v4l2_buffer *in_vb,
+			  struct vb2_v4l2_buffer *out_vb)
+{
+	struct vim2m_dev *dev = ctx->dev;
+	struct vim2m_q_data *q_data_in, *q_data_out;
+	u8 *p_in, *p_line, *p_in_x[2], *p, *p_out;
+	unsigned int width, height, bytesperline, bytes_per_pixel;
+	unsigned int x, y, y_in, y_out, x_int, x_fract, x_err, x_offset;
+	int start, end, step;
+
+	q_data_in = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+	if (!q_data_in)
+		return 0;
+	bytesperline = (q_data_in->width * q_data_in->fmt->depth) >> 3;
+	bytes_per_pixel = q_data_in->fmt->depth >> 3;
+
+	q_data_out = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+	if (!q_data_out)
+		return 0;
+
+	/* As we're doing scaling, use the output dimensions here */
+	height = q_data_out->height;
+	width = q_data_out->width;
+
+	p_in = vb2_plane_vaddr(&in_vb->vb2_buf, 0);
+	p_out = vb2_plane_vaddr(&out_vb->vb2_buf, 0);
+	if (!p_in || !p_out) {
+		v4l2_err(&dev->v4l2_dev,
+			 "Acquiring kernel pointers to buffers failed\n");
+		return -EFAULT;
+	}
+
+	out_vb->sequence = q_data_out->sequence++;
+	in_vb->sequence = q_data_in->sequence++;
+	v4l2_m2m_buf_copy_metadata(in_vb, out_vb);
+
+	if (ctx->mode & MEM2MEM_VFLIP) {
+		start = height - 1;
+		end = -1;
+		step = -1;
+	} else {
+		start = 0;
+		end = height;
+		step = 1;
+	}
+	y_out = 0;
+
+	/*
+	 * When format and resolution are identical,
+	 * we can use a faster copy logic
+	 */
+	if (q_data_in->fmt->fourcc == q_data_out->fmt->fourcc &&
+	    q_data_in->width == q_data_out->width &&
+	    q_data_in->height == q_data_out->height) {
+		for (y = start; y != end; y += step, y_out++) {
+			p = p_in + (y * bytesperline);
+			if (ctx->mode & MEM2MEM_HFLIP)
+				p += bytesperline - (q_data_in->fmt->depth >> 3);
+
+			copy_line(q_data_out, p, p_out,
+				  ctx->mode & MEM2MEM_HFLIP);
+
+			p_out += bytesperline;
+		}
+		return 0;
+	}
+
+	/* Slower algorithm with format conversion, hflip, vflip and scaler */
+
+	/* To speed scaler up, use Bresenham for X dimension */
+	x_int = q_data_in->width / q_data_out->width;
+	x_fract = q_data_in->width % q_data_out->width;
+
+	for (y = start; y != end; y += step, y_out++) {
+		y_in = (y * q_data_in->height) / q_data_out->height;
+		x_offset = 0;
+		x_err = 0;
+
+		p_line = p_in + (y_in * bytesperline);
+		if (ctx->mode & MEM2MEM_HFLIP)
+			p_line += bytesperline - (q_data_in->fmt->depth >> 3);
+		p_in_x[0] = p_line;
+
+		for (x = 0; x < width >> 1; x++) {
+			x_offset += x_int;
+			x_err += x_fract;
+			if (x_err > width) {
+				x_offset++;
+				x_err -= width;
+			}
+
+			if (ctx->mode & MEM2MEM_HFLIP)
+				p_in_x[1] = p_line - x_offset * bytes_per_pixel;
+			else
+				p_in_x[1] = p_line + x_offset * bytes_per_pixel;
+
+			copy_two_pixels(q_data_in, q_data_out,
+					p_in_x, &p_out, y_out,
+					ctx->mode & MEM2MEM_HFLIP);
+
+			/* Calculate the next p_in_x0 */
+			x_offset += x_int;
+			x_err += x_fract;
+			if (x_err > width) {
+				x_offset++;
+				x_err -= width;
+			}
+
+			if (ctx->mode & MEM2MEM_HFLIP)
+				p_in_x[0] = p_line - x_offset * bytes_per_pixel;
+			else
+				p_in_x[0] = p_line + x_offset * bytes_per_pixel;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * mem2mem callbacks
+ */
+
+/*
+ * job_ready() - check whether an instance is ready to be scheduled to run
+ */
+static int job_ready(void *priv)
+{
+	struct vim2m_ctx *ctx = priv;
+
+	if (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) < ctx->translen
+	    || v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx) < ctx->translen) {
+		dprintk(ctx->dev, 1, "Not enough buffers available\n");
+		return 0;
+	}
+
+	return 1;
+}
+
+static void job_abort(void *priv)
+{
+	struct vim2m_ctx *ctx = priv;
+
+	/* Will cancel the transaction in the next interrupt handler */
+	ctx->aborting = 1;
+}
+
+/* device_run() - prepares and starts the device
+ *
+ * This simulates all the immediate preparations required before starting
+ * a device. This will be called by the framework when it decides to schedule
+ * a particular instance.
+ */
+static void device_run(void *priv)
+{
+	struct vim2m_ctx *ctx = priv;
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+
+	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+
+	/* Apply request controls if any */
+	v4l2_ctrl_request_setup(src_buf->vb2_buf.req_obj.req,
+				&ctx->hdl);
+
+	device_process(ctx, src_buf, dst_buf);
+
+	/* Complete request controls if any */
+	v4l2_ctrl_request_complete(src_buf->vb2_buf.req_obj.req,
+				   &ctx->hdl);
+
+	/* Run delayed work, which simulates a hardware irq  */
+	schedule_delayed_work(&ctx->work_run, msecs_to_jiffies(ctx->transtime));
+}
+
+static void device_work(struct work_struct *w)
+{
+	struct vim2m_ctx *curr_ctx;
+	struct vim2m_dev *vim2m_dev;
+	struct vb2_v4l2_buffer *src_vb, *dst_vb;
+
+	curr_ctx = container_of(w, struct vim2m_ctx, work_run.work);
+
+	vim2m_dev = curr_ctx->dev;
+
+	src_vb = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx);
+	dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx);
+
+	curr_ctx->num_processed++;
+
+	v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE);
+	v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE);
+
+	if (curr_ctx->num_processed == curr_ctx->translen
+	    || curr_ctx->aborting) {
+		dprintk(curr_ctx->dev, 2, "Finishing capture buffer fill\n");
+		curr_ctx->num_processed = 0;
+		v4l2_m2m_job_finish(vim2m_dev->m2m_dev, curr_ctx->fh.m2m_ctx);
+	} else {
+		device_run(curr_ctx);
+	}
+}
+
+/*
+ * video ioctls
+ */
+static int vidioc_querycap(struct file *file, void *priv,
+			   struct v4l2_capability *cap)
+{
+	strscpy(cap->driver, MEM2MEM_NAME, sizeof(cap->driver));
+	strscpy(cap->card, MEM2MEM_NAME, sizeof(cap->card));
+	snprintf(cap->bus_info, sizeof(cap->bus_info),
+		 "platform:%s", MEM2MEM_NAME);
+	return 0;
+}
+
+static int enum_fmt(struct v4l2_fmtdesc *f, u32 type)
+{
+	int i, num;
+	struct vim2m_fmt *fmt;
+
+	num = 0;
+
+	for (i = 0; i < NUM_FORMATS; ++i) {
+		if (formats[i].types & type) {
+			/* index-th format of type type found ? */
+			if (num == f->index)
+				break;
+			/*
+			 * Correct type but haven't reached our index yet,
+			 * just increment per-type index
+			 */
+			++num;
+		}
+	}
+
+	if (i < NUM_FORMATS) {
+		/* Format found */
+		fmt = &formats[i];
+		f->pixelformat = fmt->fourcc;
+		return 0;
+	}
+
+	/* Format not found */
+	return -EINVAL;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
+				   struct v4l2_fmtdesc *f)
+{
+	return enum_fmt(f, MEM2MEM_CAPTURE);
+}
+
+static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
+				   struct v4l2_fmtdesc *f)
+{
+	return enum_fmt(f, MEM2MEM_OUTPUT);
+}
+
+static int vidioc_enum_framesizes(struct file *file, void *priv,
+				  struct v4l2_frmsizeenum *fsize)
+{
+	if (fsize->index != 0)
+		return -EINVAL;
+
+	if (!find_format(fsize->pixel_format))
+		return -EINVAL;
+
+	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+	fsize->stepwise.min_width = MIN_W;
+	fsize->stepwise.min_height = MIN_H;
+	fsize->stepwise.max_width = MAX_W;
+	fsize->stepwise.max_height = MAX_H;
+
+	get_alignment(fsize->pixel_format,
+		      &fsize->stepwise.step_width,
+		      &fsize->stepwise.step_height);
+	return 0;
+}
+
+static int vidioc_g_fmt(struct vim2m_ctx *ctx, struct v4l2_format *f)
+{
+	struct vim2m_q_data *q_data;
+	int ret;
+
+	q_data = get_q_data(ctx, f->type);
+	if (!q_data)
+		return -EINVAL;
+
+	ret = v4l2_fill_pixfmt(&f->fmt.pix, q_data->fmt->fourcc,
+			       q_data->width, q_data->height);
+	if (ret)
+		return ret;
+
+	f->fmt.pix.field	= V4L2_FIELD_NONE;
+	f->fmt.pix.colorspace	= ctx->colorspace;
+	f->fmt.pix.xfer_func	= ctx->xfer_func;
+	f->fmt.pix.ycbcr_enc	= ctx->ycbcr_enc;
+	f->fmt.pix.quantization	= ctx->quant;
+
+	return 0;
+}
+
+static int vidioc_g_fmt_mplane(struct vim2m_ctx *ctx, struct v4l2_format *f)
+{
+	struct vim2m_q_data *q_data;
+	int ret;
+
+	q_data = get_q_data(ctx, f->type);
+	if (!q_data)
+		return -EINVAL;
+
+	ret = v4l2_fill_pixfmt_mp(&f->fmt.pix_mp, q_data->fmt->fourcc,
+				  q_data->width, q_data->height);
+	if (ret)
+		return ret;
+
+	f->fmt.pix_mp.field	   = V4L2_FIELD_NONE;
+	f->fmt.pix_mp.colorspace   = ctx->colorspace;
+	f->fmt.pix_mp.xfer_func	   = ctx->xfer_func;
+	f->fmt.pix_mp.ycbcr_enc	   = ctx->ycbcr_enc;
+	f->fmt.pix_mp.quantization = ctx->quant;
+
+	return 0;
+}
+
+static int vidioc_g_fmt_vid_out(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	struct vim2m_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+
+	return vidioc_g_fmt(file2ctx(file), f);
+}
+
+static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	struct vim2m_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+
+	return vidioc_g_fmt(file2ctx(file), f);
+}
+
+static int vidioc_g_fmt_vid_out_mplane(struct file *file, void *priv,
+				       struct v4l2_format *f)
+{
+	struct vim2m_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+
+	return vidioc_g_fmt_mplane(file2ctx(file), f);
+}
+
+static int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
+				       struct v4l2_format *f)
+{
+	struct vim2m_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+
+	return vidioc_g_fmt_mplane(file2ctx(file), f);
+}
+
+static int vidioc_try_fmt(struct v4l2_format *f, bool is_mplane)
+{
+	int walign, halign, ret;
+	int width = (is_mplane) ? f->fmt.pix_mp.width : f->fmt.pix.width;
+	int height = (is_mplane) ? f->fmt.pix_mp.height : f->fmt.pix.height;
+	u32 pixfmt = (is_mplane) ? f->fmt.pix_mp.pixelformat :
+		f->fmt.pix.pixelformat;
+
+	width = clamp(width, MIN_W, MAX_W);
+	height = clamp(height, MIN_H, MAX_H);
+
+	get_alignment(pixfmt, &walign, &halign);
+	width = ALIGN(width, walign);
+	height = ALIGN(height, halign);
+
+	f->fmt.pix.field = V4L2_FIELD_NONE;
+
+	if (is_mplane) {
+		ret = v4l2_fill_pixfmt_mp(&f->fmt.pix_mp, pixfmt, width,
+					  height);
+	} else {
+		ret = v4l2_fill_pixfmt(&f->fmt.pix, pixfmt,  width, height);
+	}
+	return ret;
+}
+
+static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+				  struct v4l2_format *f)
+{
+	struct vim2m_fmt *fmt;
+	struct vim2m_ctx *ctx = file2ctx(file);
+	struct vim2m_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+
+	fmt = find_format(f->fmt.pix.pixelformat);
+	if (!fmt) {
+		f->fmt.pix.pixelformat = formats[0].fourcc;
+		fmt = find_format(f->fmt.pix.pixelformat);
+	}
+	if (!(fmt->types & MEM2MEM_CAPTURE)) {
+		v4l2_err(&ctx->dev->v4l2_dev,
+			 "Fourcc format (0x%08x) invalid.\n",
+			 f->fmt.pix.pixelformat);
+		return -EINVAL;
+	}
+	f->fmt.pix.colorspace = ctx->colorspace;
+	f->fmt.pix.xfer_func = ctx->xfer_func;
+	f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
+	f->fmt.pix.quantization = ctx->quant;
+
+	return vidioc_try_fmt(f, false);
+}
+
+static int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
+					 struct v4l2_format *f)
+{
+	struct vim2m_fmt *fmt;
+	struct vim2m_ctx *ctx = file2ctx(file);
+	struct vim2m_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+
+	fmt = find_format(f->fmt.pix_mp.pixelformat);
+	if (!fmt) {
+		f->fmt.pix_mp.pixelformat = formats[0].fourcc;
+		fmt = find_format(f->fmt.pix_mp.pixelformat);
+	}
+	if (!(fmt->types & MEM2MEM_CAPTURE)) {
+		v4l2_err(&ctx->dev->v4l2_dev,
+			 "Fourcc format (0x%08x) invalid.\n",
+			 f->fmt.pix.pixelformat);
+		return -EINVAL;
+	}
+	f->fmt.pix_mp.colorspace = ctx->colorspace;
+	f->fmt.pix_mp.xfer_func = ctx->xfer_func;
+	f->fmt.pix_mp.ycbcr_enc = ctx->ycbcr_enc;
+	f->fmt.pix_mp.quantization = ctx->quant;
+
+	return vidioc_try_fmt(f, true);
+}
+
+static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
+				  struct v4l2_format *f)
+{
+	struct vim2m_fmt *fmt;
+	struct vim2m_ctx *ctx = file2ctx(file);
+	struct vim2m_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+
+	fmt = find_format(f->fmt.pix.pixelformat);
+	if (!fmt) {
+		f->fmt.pix.pixelformat = formats[0].fourcc;
+		fmt = find_format(f->fmt.pix.pixelformat);
+	}
+	if (!(fmt->types & MEM2MEM_OUTPUT)) {
+		v4l2_err(&ctx->dev->v4l2_dev,
+			 "Fourcc format (0x%08x) invalid.\n",
+			 f->fmt.pix.pixelformat);
+		return -EINVAL;
+	}
+	if (!f->fmt.pix.colorspace)
+		f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
+
+	return vidioc_try_fmt(f, false);
+}
+
+static int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
+					 struct v4l2_format *f)
+{
+	struct vim2m_fmt *fmt;
+	struct vim2m_ctx *ctx = file2ctx(file);
+	struct vim2m_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+
+	fmt = find_format(f->fmt.pix_mp.pixelformat);
+	if (!fmt) {
+		f->fmt.pix_mp.pixelformat = formats[0].fourcc;
+		fmt = find_format(f->fmt.pix_mp.pixelformat);
+	}
+	if (!(fmt->types & MEM2MEM_OUTPUT)) {
+		v4l2_err(&ctx->dev->v4l2_dev,
+			 "Fourcc format (0x%08x) invalid.\n",
+			 f->fmt.pix_mp.pixelformat);
+		return -EINVAL;
+	}
+	if (!f->fmt.pix_mp.colorspace)
+		f->fmt.pix_mp.colorspace = V4L2_COLORSPACE_REC709;
+
+	return vidioc_try_fmt(f, true);
+}
+
+static int vidioc_s_fmt(struct vim2m_ctx *ctx, struct v4l2_format *f)
+{
+	struct vim2m_q_data *q_data;
+	struct vb2_queue *vq;
+	unsigned int i;
+	bool is_mplane = ctx->dev->multiplanar;
+	u32 pixfmt = (is_mplane) ? f->fmt.pix_mp.pixelformat : f->fmt.pix.pixelformat;
+	u32 width = (is_mplane) ? f->fmt.pix_mp.width : f->fmt.pix.width;
+	u32 height = (is_mplane) ? f->fmt.pix_mp.height : f->fmt.pix.height;
+
+	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+
+	q_data = get_q_data(ctx, f->type);
+	if (!q_data)
+		return -EINVAL;
+
+	if (vb2_is_busy(vq)) {
+		v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
+		return -EBUSY;
+	}
+
+	q_data->fmt		= find_format(pixfmt);
+	q_data->width		= width;
+	q_data->height		= height;
+	if (is_mplane) {
+		q_data->num_mem_planes = f->fmt.pix_mp.num_planes;
+		for (i = 0; i < f->fmt.pix_mp.num_planes; i++)
+			q_data->sizeimage[i] = f->fmt.pix_mp.plane_fmt[i].sizeimage;
+	} else {
+		q_data->sizeimage[0] = f->fmt.pix.sizeimage;
+		q_data->num_mem_planes = 1;
+	}
+
+	dprintk(ctx->dev, 1,
+		"Format for type %s: %dx%d (%d bpp), fmt: %c%c%c%c\n",
+		type_name(f->type), q_data->width, q_data->height,
+		q_data->fmt->depth,
+		(q_data->fmt->fourcc & 0xff),
+		(q_data->fmt->fourcc >>  8) & 0xff,
+		(q_data->fmt->fourcc >> 16) & 0xff,
+		(q_data->fmt->fourcc >> 24) & 0xff);
+
+	return 0;
+}
+
+static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	int ret;
+	struct vim2m_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+
+	ret = vidioc_try_fmt_vid_cap(file, priv, f);
+	if (ret)
+		return ret;
+
+	return vidioc_s_fmt(file2ctx(file), f);
+}
+
+static int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
+				       struct v4l2_format *f)
+{
+	int ret;
+	struct vim2m_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+
+	ret = vidioc_try_fmt_vid_cap_mplane(file, priv, f);
+	if (ret)
+		return ret;
+
+	return vidioc_s_fmt(file2ctx(file), f);
+}
+
+static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	struct vim2m_ctx *ctx = file2ctx(file);
+	struct vim2m_dev *dev = video_drvdata(file);
+	int ret;
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+
+	ret = vidioc_try_fmt_vid_out(file, priv, f);
+	if (ret)
+		return ret;
+
+	ret = vidioc_s_fmt(file2ctx(file), f);
+	if (!ret) {
+		ctx->colorspace = f->fmt.pix.colorspace;
+		ctx->xfer_func = f->fmt.pix.xfer_func;
+		ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
+		ctx->quant = f->fmt.pix.quantization;
+	}
+	return ret;
+}
+
+static int vidioc_s_fmt_vid_out_mplane(struct file *file, void *priv,
+				       struct v4l2_format *f)
+{
+	struct vim2m_ctx *ctx = file2ctx(file);
+	struct vim2m_dev *dev = video_drvdata(file);
+	int ret;
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+
+	ret = vidioc_try_fmt_vid_out_mplane(file, priv, f);
+	if (ret)
+		return ret;
+
+	ret = vidioc_s_fmt(file2ctx(file), f);
+	if (!ret) {
+		ctx->colorspace = f->fmt.pix_mp.colorspace;
+		ctx->xfer_func = f->fmt.pix_mp.xfer_func;
+		ctx->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
+		ctx->quant = f->fmt.pix_mp.quantization;
+	}
+	return ret;
+}
+
+static int vim2m_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vim2m_ctx *ctx =
+		container_of(ctrl->handler, struct vim2m_ctx, hdl);
+
+	switch (ctrl->id) {
+	case V4L2_CID_HFLIP:
+		if (ctrl->val)
+			ctx->mode |= MEM2MEM_HFLIP;
+		else
+			ctx->mode &= ~MEM2MEM_HFLIP;
+		break;
+
+	case V4L2_CID_VFLIP:
+		if (ctrl->val)
+			ctx->mode |= MEM2MEM_VFLIP;
+		else
+			ctx->mode &= ~MEM2MEM_VFLIP;
+		break;
+
+	case V4L2_CID_TRANS_TIME_MSEC:
+		ctx->transtime = ctrl->val;
+		if (ctx->transtime < 1)
+			ctx->transtime = 1;
+		break;
+
+	case V4L2_CID_TRANS_NUM_BUFS:
+		ctx->translen = ctrl->val;
+		break;
+
+	default:
+		v4l2_err(&ctx->dev->v4l2_dev, "Invalid control\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vim2m_ctrl_ops = {
+	.s_ctrl = vim2m_s_ctrl,
+};
+
+static const struct v4l2_ioctl_ops vim2m_ioctl_ops = {
+	.vidioc_querycap	= vidioc_querycap,
+
+	.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
+	.vidioc_enum_framesizes = vidioc_enum_framesizes,
+	.vidioc_g_fmt_vid_cap	= vidioc_g_fmt_vid_cap,
+	.vidioc_try_fmt_vid_cap	= vidioc_try_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap	= vidioc_s_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt_vid_cap_mplane,
+	.vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt_vid_cap_mplane,
+	.vidioc_s_fmt_vid_cap_mplane	= vidioc_s_fmt_vid_cap_mplane,
+
+	.vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
+	.vidioc_g_fmt_vid_out	= vidioc_g_fmt_vid_out,
+	.vidioc_try_fmt_vid_out	= vidioc_try_fmt_vid_out,
+	.vidioc_s_fmt_vid_out	= vidioc_s_fmt_vid_out,
+	.vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt_vid_out_mplane,
+	.vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt_vid_out_mplane,
+	.vidioc_s_fmt_vid_out_mplane	= vidioc_s_fmt_vid_out_mplane,
+
+	.vidioc_reqbufs		= v4l2_m2m_ioctl_reqbufs,
+	.vidioc_querybuf	= v4l2_m2m_ioctl_querybuf,
+	.vidioc_qbuf		= v4l2_m2m_ioctl_qbuf,
+	.vidioc_dqbuf		= v4l2_m2m_ioctl_dqbuf,
+	.vidioc_prepare_buf	= v4l2_m2m_ioctl_prepare_buf,
+	.vidioc_create_bufs	= v4l2_m2m_ioctl_create_bufs,
+	.vidioc_expbuf		= v4l2_m2m_ioctl_expbuf,
+
+	.vidioc_streamon	= v4l2_m2m_ioctl_streamon,
+	.vidioc_streamoff	= v4l2_m2m_ioctl_streamoff,
+
+	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+/*
+ * Queue operations
+ */
+
+static int vim2m_queue_setup(struct vb2_queue *vq,
+			     unsigned int *nbuffers,
+			     unsigned int *nplanes,
+			     unsigned int sizes[],
+			     struct device *alloc_devs[])
+{
+	struct vim2m_ctx *ctx = vb2_get_drv_priv(vq);
+	struct vim2m_q_data *q_data;
+	unsigned int size, p, count = *nbuffers;
+
+	q_data = get_q_data(ctx, vq->type);
+	if (!q_data)
+		return -EINVAL;
+
+	size = 0;
+	for (p = 0; p < q_data->num_mem_planes; p++)
+		size += q_data->sizeimage[p];
+
+	while (size * count > MEM2MEM_VID_MEM_LIMIT)
+		(count)--;
+	*nbuffers = count;
+
+	if (*nplanes) {
+		if (*nplanes != q_data->num_mem_planes)
+			return -EINVAL;
+		for (p = 0; p < q_data->num_mem_planes; p++) {
+			if (sizes[p] < q_data->sizeimage[p])
+				return -EINVAL;
+		}
+	} else {
+		*nplanes = q_data->num_mem_planes;
+		for (p = 0; p < q_data->num_mem_planes; p++)
+			sizes[p] = q_data->sizeimage[p];
+	}
+
+	dprintk(ctx->dev, 1, "%s: get %d buffer(s) of size %d each.\n",
+		type_name(vq->type), count, size);
+
+	return 0;
+}
+
+static int vim2m_buf_out_validate(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+	if (vbuf->field == V4L2_FIELD_ANY)
+		vbuf->field = V4L2_FIELD_NONE;
+	if (vbuf->field != V4L2_FIELD_NONE) {
+		dprintk(ctx->dev, 1, "%s field isn't supported\n", __func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int vim2m_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	struct vim2m_q_data *q_data;
+	unsigned int p;
+
+	dprintk(ctx->dev, 2, "type: %s\n", type_name(vb->vb2_queue->type));
+
+	q_data = get_q_data(ctx, vb->vb2_queue->type);
+	if (!q_data)
+		return -EINVAL;
+
+	for (p = 0; p < q_data->num_mem_planes; p++) {
+		if (vb2_plane_size(vb, p) < q_data->sizeimage[p]) {
+			dprintk(ctx->dev, 1,
+				"%s data will not fit into plane (%lu < %lu)\n",
+				__func__, vb2_plane_size(vb, p),
+				(long)q_data->sizeimage[p]);
+			return -EINVAL;
+		}
+		vb2_set_plane_payload(vb, p, q_data->sizeimage[p]);
+	}
+
+	return 0;
+}
+
+static void vim2m_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
+}
+
+static int vim2m_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+	struct vim2m_ctx *ctx = vb2_get_drv_priv(q);
+	struct vim2m_q_data *q_data = get_q_data(ctx, q->type);
+
+	if (!q_data)
+		return -EINVAL;
+
+	if (V4L2_TYPE_IS_OUTPUT(q->type))
+		ctx->aborting = 0;
+
+	q_data->sequence = 0;
+	return 0;
+}
+
+static void vim2m_stop_streaming(struct vb2_queue *q)
+{
+	struct vim2m_ctx *ctx = vb2_get_drv_priv(q);
+	struct vb2_v4l2_buffer *vbuf;
+
+	cancel_delayed_work_sync(&ctx->work_run);
+
+	for (;;) {
+		if (V4L2_TYPE_IS_OUTPUT(q->type))
+			vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+		else
+			vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+		if (!vbuf)
+			return;
+		v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req,
+					   &ctx->hdl);
+		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
+	}
+}
+
+static void vim2m_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->hdl);
+}
+
+static const struct vb2_ops vim2m_qops = {
+	.queue_setup	 = vim2m_queue_setup,
+	.buf_out_validate	 = vim2m_buf_out_validate,
+	.buf_prepare	 = vim2m_buf_prepare,
+	.buf_queue	 = vim2m_buf_queue,
+	.start_streaming = vim2m_start_streaming,
+	.stop_streaming  = vim2m_stop_streaming,
+	.buf_request_complete = vim2m_buf_request_complete,
+};
+
+static int queue_init(void *priv, struct vb2_queue *src_vq,
+		      struct vb2_queue *dst_vq)
+{
+	struct vim2m_ctx *ctx = priv;
+	int ret;
+
+	src_vq->type = (ctx->dev->multiplanar) ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
+		V4L2_BUF_TYPE_VIDEO_OUTPUT;
+	src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+	src_vq->drv_priv = ctx;
+	src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+	src_vq->ops = &vim2m_qops;
+	src_vq->mem_ops = &vb2_vmalloc_memops;
+	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	src_vq->lock = &ctx->vb_mutex;
+	src_vq->supports_requests = true;
+
+	ret = vb2_queue_init(src_vq);
+	if (ret)
+		return ret;
+
+	dst_vq->type = (ctx->dev->multiplanar) ? V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
+		V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+	dst_vq->drv_priv = ctx;
+	dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+	dst_vq->ops = &vim2m_qops;
+	dst_vq->mem_ops = &vb2_vmalloc_memops;
+	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	dst_vq->lock = &ctx->vb_mutex;
+
+	return vb2_queue_init(dst_vq);
+}
+
+static struct v4l2_ctrl_config vim2m_ctrl_trans_time_msec = {
+	.ops = &vim2m_ctrl_ops,
+	.id = V4L2_CID_TRANS_TIME_MSEC,
+	.name = "Transaction Time (msec)",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.min = 1,
+	.max = 10001,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vim2m_ctrl_trans_num_bufs = {
+	.ops = &vim2m_ctrl_ops,
+	.id = V4L2_CID_TRANS_NUM_BUFS,
+	.name = "Buffers Per Transaction",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.def = 1,
+	.min = 1,
+	.max = MEM2MEM_DEF_NUM_BUFS,
+	.step = 1,
+};
+
+/*
+ * File operations
+ */
+static int vim2m_open(struct file *file)
+{
+	struct vim2m_dev *dev = video_drvdata(file);
+	struct vim2m_ctx *ctx = NULL;
+	struct v4l2_ctrl_handler *hdl;
+	int rc = 0;
+
+	if (mutex_lock_interruptible(&dev->dev_mutex))
+		return -ERESTARTSYS;
+	ctx = kzalloc_obj(*ctx);
+	if (!ctx) {
+		rc = -ENOMEM;
+		goto open_unlock;
+	}
+
+	v4l2_fh_init(&ctx->fh, video_devdata(file));
+	ctx->dev = dev;
+	hdl = &ctx->hdl;
+	v4l2_ctrl_handler_init(hdl, 4);
+	v4l2_ctrl_new_std(hdl, &vim2m_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0);
+	v4l2_ctrl_new_std(hdl, &vim2m_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
+
+	vim2m_ctrl_trans_time_msec.def = default_transtime;
+	v4l2_ctrl_new_custom(hdl, &vim2m_ctrl_trans_time_msec, NULL);
+	v4l2_ctrl_new_custom(hdl, &vim2m_ctrl_trans_num_bufs, NULL);
+	if (hdl->error) {
+		rc = hdl->error;
+		v4l2_ctrl_handler_free(hdl);
+		kfree(ctx);
+		goto open_unlock;
+	}
+	ctx->fh.ctrl_handler = hdl;
+	v4l2_ctrl_handler_setup(hdl);
+
+	ctx->q_data[V4L2_M2M_SRC].fmt = &formats[0];
+	ctx->q_data[V4L2_M2M_SRC].width = 640;
+	ctx->q_data[V4L2_M2M_SRC].height = 480;
+	ctx->q_data[V4L2_M2M_SRC].sizeimage[0] =
+		ctx->q_data[V4L2_M2M_SRC].width *
+		ctx->q_data[V4L2_M2M_SRC].height *
+		(ctx->q_data[V4L2_M2M_SRC].fmt->depth >> 3);
+	ctx->q_data[V4L2_M2M_SRC].num_mem_planes = 1;
+	ctx->q_data[V4L2_M2M_DST] = ctx->q_data[V4L2_M2M_SRC];
+	ctx->colorspace = V4L2_COLORSPACE_REC709;
+
+	ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
+
+	mutex_init(&ctx->vb_mutex);
+	INIT_DELAYED_WORK(&ctx->work_run, device_work);
+
+	if (IS_ERR(ctx->fh.m2m_ctx)) {
+		rc = PTR_ERR(ctx->fh.m2m_ctx);
+
+		v4l2_ctrl_handler_free(hdl);
+		v4l2_fh_exit(&ctx->fh);
+		kfree(ctx);
+		goto open_unlock;
+	}
+
+	v4l2_fh_add(&ctx->fh, file);
+	atomic_inc(&dev->num_inst);
+
+	dprintk(dev, 1, "Created instance: %p, m2m_ctx: %p\n",
+		ctx, ctx->fh.m2m_ctx);
+
+open_unlock:
+	mutex_unlock(&dev->dev_mutex);
+	return rc;
+}
+
+static int vim2m_release(struct file *file)
+{
+	struct vim2m_dev *dev = video_drvdata(file);
+	struct vim2m_ctx *ctx = file2ctx(file);
+
+	dprintk(dev, 1, "Releasing instance %p\n", ctx);
+
+	v4l2_fh_del(&ctx->fh, file);
+	v4l2_fh_exit(&ctx->fh);
+	v4l2_ctrl_handler_free(&ctx->hdl);
+	mutex_lock(&dev->dev_mutex);
+	v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
+	mutex_unlock(&dev->dev_mutex);
+	kfree(ctx);
+
+	atomic_dec(&dev->num_inst);
+
+	return 0;
+}
+
+static void vim2m_device_release(struct video_device *vdev)
+{
+	struct vim2m_dev *dev = container_of(vdev, struct vim2m_dev, vfd);
+
+	v4l2_device_unregister(&dev->v4l2_dev);
+	v4l2_m2m_release(dev->m2m_dev);
+	media_device_cleanup(&dev->mdev);
+	kfree(dev);
+}
+
+static const struct v4l2_file_operations vim2m_fops = {
+	.owner		= THIS_MODULE,
+	.open		= vim2m_open,
+	.release	= vim2m_release,
+	.poll		= v4l2_m2m_fop_poll,
+	.unlocked_ioctl	= video_ioctl2,
+	.mmap		= v4l2_m2m_fop_mmap,
+};
+
+static const struct video_device vim2m_videodev = {
+	.name		= MEM2MEM_NAME,
+	.vfl_dir	= VFL_DIR_M2M,
+	.fops		= &vim2m_fops,
+	.ioctl_ops	= &vim2m_ioctl_ops,
+	.minor		= -1,
+	.release	= vim2m_device_release,
+	.device_caps	= V4L2_CAP_STREAMING,
+};
+
+static const struct v4l2_m2m_ops m2m_ops = {
+	.device_run	= device_run,
+	.job_ready	= job_ready,
+	.job_abort	= job_abort,
+};
+
+static const struct media_device_ops m2m_media_ops = {
+	.req_validate = vb2_request_validate,
+	.req_queue = v4l2_m2m_request_queue,
+};
+
+static int vim2m_probe(struct platform_device *pdev)
+{
+	struct vim2m_dev *dev;
+	struct video_device *vfd;
+	int ret;
+
+	dev = kzalloc_obj(*dev);
+	if (!dev)
+		return -ENOMEM;
+
+	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+	if (ret)
+		goto error_free;
+
+	atomic_set(&dev->num_inst, 0);
+	mutex_init(&dev->dev_mutex);
+
+	dev->multiplanar = (multiplanar == 2);
+
+	dev->vfd = vim2m_videodev;
+	vfd = &dev->vfd;
+	vfd->lock = &dev->dev_mutex;
+	vfd->v4l2_dev = &dev->v4l2_dev;
+	vfd->device_caps |= (dev->multiplanar) ? V4L2_CAP_VIDEO_M2M_MPLANE :
+		V4L2_CAP_VIDEO_M2M;
+
+	video_set_drvdata(vfd, dev);
+	platform_set_drvdata(pdev, dev);
+
+	dev->m2m_dev = v4l2_m2m_init(&m2m_ops);
+	if (IS_ERR(dev->m2m_dev)) {
+		v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
+		ret = PTR_ERR(dev->m2m_dev);
+		dev->m2m_dev = NULL;
+		goto error_dev;
+	}
+
+	dev->mdev.dev = &pdev->dev;
+	strscpy(dev->mdev.model, "vim2m", sizeof(dev->mdev.model));
+	strscpy(dev->mdev.bus_info, "platform:vim2m",
+		sizeof(dev->mdev.bus_info));
+	media_device_init(&dev->mdev);
+	dev->mdev.ops = &m2m_media_ops;
+	dev->v4l2_dev.mdev = &dev->mdev;
+
+	ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
+		goto error_m2m;
+	}
+
+	v4l2_info(&dev->v4l2_dev,
+		  "Device registered as /dev/video%d\n", vfd->num);
+
+	ret = v4l2_m2m_register_media_controller(dev->m2m_dev, vfd,
+						 MEDIA_ENT_F_PROC_VIDEO_SCALER);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller\n");
+		goto error_v4l2;
+	}
+
+	ret = media_device_register(&dev->mdev);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n");
+		goto error_m2m_mc;
+	}
+
+	return 0;
+
+error_m2m_mc:
+	v4l2_m2m_unregister_media_controller(dev->m2m_dev);
+error_v4l2:
+	video_unregister_device(&dev->vfd);
+	/* vim2m_device_release called by video_unregister_device to release various objects */
+	return ret;
+error_m2m:
+	v4l2_m2m_release(dev->m2m_dev);
+error_dev:
+	v4l2_device_unregister(&dev->v4l2_dev);
+error_free:
+	kfree(dev);
+
+	return ret;
+}
+
+static void vim2m_remove(struct platform_device *pdev)
+{
+	struct vim2m_dev *dev = platform_get_drvdata(pdev);
+
+	v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_NAME);
+
+	media_device_unregister(&dev->mdev);
+	v4l2_m2m_unregister_media_controller(dev->m2m_dev);
+	video_unregister_device(&dev->vfd);
+}
+
+static struct platform_driver vim2m_pdrv = {
+	.probe		= vim2m_probe,
+	.remove		= vim2m_remove,
+	.driver		= {
+		.name	= MEM2MEM_NAME,
+	},
+};
+
+static void __exit vim2m_exit(void)
+{
+	platform_driver_unregister(&vim2m_pdrv);
+	platform_device_unregister(&vim2m_pdev);
+}
+
+static int __init vim2m_init(void)
+{
+	int ret;
+
+	ret = platform_device_register(&vim2m_pdev);
+	if (ret)
+		return ret;
+
+	ret = platform_driver_register(&vim2m_pdrv);
+	if (ret)
+		platform_device_unregister(&vim2m_pdev);
+
+	return ret;
+}
+
+module_init(vim2m_init);
+module_exit(vim2m_exit);
diff --git a/drivers/media/test-drivers/vimc/Kconfig b/drivers/media/test-drivers/vimc/Kconfig
new file mode 100644
index 000000000..0d5169819
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/Kconfig
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_VIMC
+	tristate "Virtual Media Controller Driver (VIMC)"
+	depends on VIDEO_DEV
+	select FONT_SUPPORT
+	select FONT_8x16
+	select MEDIA_CONTROLLER
+	select VIDEO_V4L2_SUBDEV_API
+	select VIDEOBUF2_VMALLOC
+	select VIDEOBUF2_DMA_CONTIG
+	select VIDEO_V4L2_TPG
+	help
+	  Skeleton driver for Virtual Media Controller
+
+	  This driver can be compared to the vivid driver for emulating
+	  a media node that exposes a complex media topology. The topology
+	  is hard coded for now but is meant to be highly configurable in
+	  the future.
+
+	  When in doubt, say N.
diff --git a/drivers/media/test-drivers/vimc/Makefile b/drivers/media/test-drivers/vimc/Makefile
new file mode 100644
index 000000000..9b9631562
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+vimc-y := vimc-core.o vimc-common.o vimc-streamer.o vimc-capture.o \
+		vimc-debayer.o vimc-scaler.o vimc-sensor.o vimc-lens.o
+
+obj-$(CONFIG_VIDEO_VIMC) += vimc.o
+
diff --git a/drivers/media/test-drivers/vimc/vimc-capture.c b/drivers/media/test-drivers/vimc/vimc-capture.c
new file mode 100644
index 000000000..ac60c9b54
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/vimc-capture.c
@@ -0,0 +1,493 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * vimc-capture.c Virtual Media Controller Driver
+ *
+ * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
+ */
+
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
+#include <media/videobuf2-vmalloc.h>
+
+#include "vimc-common.h"
+#include "vimc-streamer.h"
+
+struct vimc_capture_device {
+	struct vimc_ent_device ved;
+	struct video_device vdev;
+	struct v4l2_pix_format format;
+	struct vb2_queue queue;
+	struct list_head buf_list;
+	/*
+	 * NOTE: in a real driver, a spin lock must be used to access the
+	 * queue because the frames are generated from a hardware interruption
+	 * and the isr is not allowed to sleep.
+	 * Even if it is not necessary a spinlock in the vimc driver, we
+	 * use it here as a code reference
+	 */
+	spinlock_t qlock;
+	struct mutex lock;
+	u32 sequence;
+	struct vimc_stream stream;
+	struct media_pad pad;
+};
+
+static const struct v4l2_pix_format fmt_default = {
+	.width = 640,
+	.height = 480,
+	.pixelformat = V4L2_PIX_FMT_RGB24,
+	.field = V4L2_FIELD_NONE,
+	.colorspace = V4L2_COLORSPACE_SRGB,
+};
+
+struct vimc_capture_buffer {
+	/*
+	 * struct vb2_v4l2_buffer must be the first element
+	 * the videobuf2 framework will allocate this struct based on
+	 * buf_struct_size and use the first sizeof(struct vb2_buffer) bytes of
+	 * memory as a vb2_buffer
+	 */
+	struct vb2_v4l2_buffer vb2;
+	struct list_head list;
+};
+
+static int vimc_capture_querycap(struct file *file, void *priv,
+			     struct v4l2_capability *cap)
+{
+	strscpy(cap->driver, VIMC_PDEV_NAME, sizeof(cap->driver));
+	strscpy(cap->card, KBUILD_MODNAME, sizeof(cap->card));
+
+	return 0;
+}
+
+static void vimc_capture_get_format(struct vimc_ent_device *ved,
+				struct v4l2_pix_format *fmt)
+{
+	struct vimc_capture_device *vcapture = container_of(ved, struct vimc_capture_device,
+						    ved);
+
+	*fmt = vcapture->format;
+}
+
+static int vimc_capture_g_fmt_vid_cap(struct file *file, void *priv,
+				  struct v4l2_format *f)
+{
+	struct vimc_capture_device *vcapture = video_drvdata(file);
+
+	f->fmt.pix = vcapture->format;
+
+	return 0;
+}
+
+static int vimc_capture_try_fmt_vid_cap(struct file *file, void *priv,
+				    struct v4l2_format *f)
+{
+	struct v4l2_pix_format *format = &f->fmt.pix;
+	const struct vimc_pix_map *vpix;
+
+	format->width = clamp_t(u32, format->width, VIMC_FRAME_MIN_WIDTH,
+				VIMC_FRAME_MAX_WIDTH) & ~1;
+	format->height = clamp_t(u32, format->height, VIMC_FRAME_MIN_HEIGHT,
+				 VIMC_FRAME_MAX_HEIGHT) & ~1;
+
+	/* Don't accept a pixelformat that is not on the table */
+	vpix = vimc_pix_map_by_pixelformat(format->pixelformat);
+	if (!vpix) {
+		format->pixelformat = fmt_default.pixelformat;
+		vpix = vimc_pix_map_by_pixelformat(format->pixelformat);
+	}
+	/* TODO: Add support for custom bytesperline values */
+	format->bytesperline = format->width * vpix->bpp;
+	format->sizeimage = format->bytesperline * format->height;
+
+	if (format->field == V4L2_FIELD_ANY)
+		format->field = fmt_default.field;
+
+	vimc_colorimetry_clamp(format);
+
+	if (format->colorspace == V4L2_COLORSPACE_DEFAULT)
+		format->colorspace = fmt_default.colorspace;
+
+	return 0;
+}
+
+static int vimc_capture_s_fmt_vid_cap(struct file *file, void *priv,
+				  struct v4l2_format *f)
+{
+	struct vimc_capture_device *vcapture = video_drvdata(file);
+	int ret;
+
+	/* Do not change the format while stream is on */
+	if (vb2_is_busy(&vcapture->queue))
+		return -EBUSY;
+
+	ret = vimc_capture_try_fmt_vid_cap(file, priv, f);
+	if (ret)
+		return ret;
+
+	dev_dbg(vcapture->ved.dev, "%s: format update: "
+		"old:%dx%d (0x%x, %d, %d, %d, %d) "
+		"new:%dx%d (0x%x, %d, %d, %d, %d)\n", vcapture->vdev.name,
+		/* old */
+		vcapture->format.width, vcapture->format.height,
+		vcapture->format.pixelformat, vcapture->format.colorspace,
+		vcapture->format.quantization, vcapture->format.xfer_func,
+		vcapture->format.ycbcr_enc,
+		/* new */
+		f->fmt.pix.width, f->fmt.pix.height,
+		f->fmt.pix.pixelformat,	f->fmt.pix.colorspace,
+		f->fmt.pix.quantization, f->fmt.pix.xfer_func,
+		f->fmt.pix.ycbcr_enc);
+
+	vcapture->format = f->fmt.pix;
+
+	return 0;
+}
+
+static int vimc_capture_enum_fmt_vid_cap(struct file *file, void *priv,
+				     struct v4l2_fmtdesc *f)
+{
+	const struct vimc_pix_map *vpix;
+
+	if (f->mbus_code) {
+		if (f->index > 0)
+			return -EINVAL;
+
+		vpix = vimc_pix_map_by_code(f->mbus_code);
+	} else {
+		vpix = vimc_pix_map_by_index(f->index);
+	}
+
+	if (!vpix)
+		return -EINVAL;
+
+	f->pixelformat = vpix->pixelformat;
+
+	return 0;
+}
+
+static int vimc_capture_enum_framesizes(struct file *file, void *priv,
+				    struct v4l2_frmsizeenum *fsize)
+{
+	const struct vimc_pix_map *vpix;
+
+	if (fsize->index)
+		return -EINVAL;
+
+	/* Only accept pixel_format in the pix map table */
+	vpix = vimc_pix_map_by_pixelformat(fsize->pixel_format);
+	if (!vpix)
+		return -EINVAL;
+
+	fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
+	fsize->stepwise.min_width = VIMC_FRAME_MIN_WIDTH;
+	fsize->stepwise.max_width = VIMC_FRAME_MAX_WIDTH;
+	fsize->stepwise.min_height = VIMC_FRAME_MIN_HEIGHT;
+	fsize->stepwise.max_height = VIMC_FRAME_MAX_HEIGHT;
+	fsize->stepwise.step_width = 1;
+	fsize->stepwise.step_height = 1;
+
+	return 0;
+}
+
+static const struct v4l2_file_operations vimc_capture_fops = {
+	.owner		= THIS_MODULE,
+	.open		= v4l2_fh_open,
+	.release	= vb2_fop_release,
+	.read           = vb2_fop_read,
+	.poll		= vb2_fop_poll,
+	.unlocked_ioctl = video_ioctl2,
+	.mmap           = vb2_fop_mmap,
+};
+
+static const struct v4l2_ioctl_ops vimc_capture_ioctl_ops = {
+	.vidioc_querycap = vimc_capture_querycap,
+
+	.vidioc_g_fmt_vid_cap = vimc_capture_g_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap = vimc_capture_s_fmt_vid_cap,
+	.vidioc_try_fmt_vid_cap = vimc_capture_try_fmt_vid_cap,
+	.vidioc_enum_fmt_vid_cap = vimc_capture_enum_fmt_vid_cap,
+	.vidioc_enum_framesizes = vimc_capture_enum_framesizes,
+
+	.vidioc_reqbufs = vb2_ioctl_reqbufs,
+	.vidioc_create_bufs = vb2_ioctl_create_bufs,
+	.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+	.vidioc_querybuf = vb2_ioctl_querybuf,
+	.vidioc_qbuf = vb2_ioctl_qbuf,
+	.vidioc_dqbuf = vb2_ioctl_dqbuf,
+	.vidioc_expbuf = vb2_ioctl_expbuf,
+	.vidioc_streamon = vb2_ioctl_streamon,
+	.vidioc_streamoff = vb2_ioctl_streamoff,
+	.vidioc_remove_bufs = vb2_ioctl_remove_bufs,
+};
+
+static void vimc_capture_return_all_buffers(struct vimc_capture_device *vcapture,
+					enum vb2_buffer_state state)
+{
+	struct vimc_capture_buffer *vbuf, *node;
+
+	spin_lock(&vcapture->qlock);
+
+	list_for_each_entry_safe(vbuf, node, &vcapture->buf_list, list) {
+		list_del(&vbuf->list);
+		vb2_buffer_done(&vbuf->vb2.vb2_buf, state);
+	}
+
+	spin_unlock(&vcapture->qlock);
+}
+
+static int vimc_capture_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+	struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq);
+	int ret;
+
+	vcapture->sequence = 0;
+
+	/* Start the media pipeline */
+	ret = video_device_pipeline_start(&vcapture->vdev, &vcapture->stream.pipe);
+	if (ret) {
+		vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_QUEUED);
+		return ret;
+	}
+
+	ret = vimc_streamer_s_stream(&vcapture->stream, &vcapture->ved, 1);
+	if (ret) {
+		video_device_pipeline_stop(&vcapture->vdev);
+		vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_QUEUED);
+		return ret;
+	}
+
+	return 0;
+}
+
+/*
+ * Stop the stream engine. Any remaining buffers in the stream queue are
+ * dequeued and passed on to the vb2 framework marked as STATE_ERROR.
+ */
+static void vimc_capture_stop_streaming(struct vb2_queue *vq)
+{
+	struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq);
+
+	vimc_streamer_s_stream(&vcapture->stream, &vcapture->ved, 0);
+
+	/* Stop the media pipeline */
+	video_device_pipeline_stop(&vcapture->vdev);
+
+	/* Release all active buffers */
+	vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_ERROR);
+}
+
+static void vimc_capture_buf_queue(struct vb2_buffer *vb2_buf)
+{
+	struct vimc_capture_device *vcapture = vb2_get_drv_priv(vb2_buf->vb2_queue);
+	struct vimc_capture_buffer *buf = container_of(vb2_buf,
+						   struct vimc_capture_buffer,
+						   vb2.vb2_buf);
+
+	spin_lock(&vcapture->qlock);
+	list_add_tail(&buf->list, &vcapture->buf_list);
+	spin_unlock(&vcapture->qlock);
+}
+
+static int vimc_capture_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
+				unsigned int *nplanes, unsigned int sizes[],
+				struct device *alloc_devs[])
+{
+	struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq);
+
+	if (*nplanes)
+		return sizes[0] < vcapture->format.sizeimage ? -EINVAL : 0;
+	/* We don't support multiplanes for now */
+	*nplanes = 1;
+	sizes[0] = vcapture->format.sizeimage;
+
+	return 0;
+}
+
+static int vimc_capture_buffer_prepare(struct vb2_buffer *vb)
+{
+	struct vimc_capture_device *vcapture = vb2_get_drv_priv(vb->vb2_queue);
+	unsigned long size = vcapture->format.sizeimage;
+
+	if (vb2_plane_size(vb, 0) < size) {
+		dev_err(vcapture->ved.dev, "%s: buffer too small (%lu < %lu)\n",
+			vcapture->vdev.name, vb2_plane_size(vb, 0), size);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static const struct vb2_ops vimc_capture_qops = {
+	.start_streaming	= vimc_capture_start_streaming,
+	.stop_streaming		= vimc_capture_stop_streaming,
+	.buf_queue		= vimc_capture_buf_queue,
+	.queue_setup		= vimc_capture_queue_setup,
+	.buf_prepare		= vimc_capture_buffer_prepare,
+};
+
+static const struct media_entity_operations vimc_capture_mops = {
+	.link_validate		= vimc_vdev_link_validate,
+};
+
+static void vimc_capture_release(struct vimc_ent_device *ved)
+{
+	struct vimc_capture_device *vcapture =
+		container_of(ved, struct vimc_capture_device, ved);
+
+	media_entity_cleanup(vcapture->ved.ent);
+	kfree(vcapture);
+}
+
+static void vimc_capture_unregister(struct vimc_ent_device *ved)
+{
+	struct vimc_capture_device *vcapture =
+		container_of(ved, struct vimc_capture_device, ved);
+
+	vb2_video_unregister_device(&vcapture->vdev);
+}
+
+static void *vimc_capture_process_frame(struct vimc_ent_device *ved,
+				    const void *frame)
+{
+	struct vimc_capture_device *vcapture = container_of(ved, struct vimc_capture_device,
+						    ved);
+	struct vimc_capture_buffer *vimc_buf;
+	void *vbuf;
+
+	spin_lock(&vcapture->qlock);
+
+	/* Get the first entry of the list */
+	vimc_buf = list_first_entry_or_null(&vcapture->buf_list,
+					    typeof(*vimc_buf), list);
+	if (!vimc_buf) {
+		spin_unlock(&vcapture->qlock);
+		return ERR_PTR(-EAGAIN);
+	}
+
+	/* Remove this entry from the list */
+	list_del(&vimc_buf->list);
+
+	spin_unlock(&vcapture->qlock);
+
+	/* Fill the buffer */
+	vimc_buf->vb2.vb2_buf.timestamp = ktime_get_ns();
+	vimc_buf->vb2.sequence = vcapture->sequence++;
+	vimc_buf->vb2.field = vcapture->format.field;
+
+	vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, 0);
+
+	memcpy(vbuf, frame, vcapture->format.sizeimage);
+
+	/* Set it as ready */
+	vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, 0,
+			      vcapture->format.sizeimage);
+	vb2_buffer_done(&vimc_buf->vb2.vb2_buf, VB2_BUF_STATE_DONE);
+	return NULL;
+}
+
+static struct vimc_ent_device *vimc_capture_add(struct vimc_device *vimc,
+					    const char *vcfg_name)
+{
+	struct v4l2_device *v4l2_dev = &vimc->v4l2_dev;
+	const struct vimc_pix_map *vpix;
+	struct vimc_capture_device *vcapture;
+	struct video_device *vdev;
+	struct vb2_queue *q;
+	int ret;
+
+	/* Allocate the vimc_capture_device struct */
+	vcapture = kzalloc_obj(*vcapture);
+	if (!vcapture)
+		return ERR_PTR(-ENOMEM);
+
+	/* Initialize the media entity */
+	vcapture->vdev.entity.name = vcfg_name;
+	vcapture->vdev.entity.function = MEDIA_ENT_F_IO_V4L;
+	vcapture->pad.flags = MEDIA_PAD_FL_SINK;
+	ret = media_entity_pads_init(&vcapture->vdev.entity,
+				     1, &vcapture->pad);
+	if (ret)
+		goto err_free_vcapture;
+
+	/* Initialize the lock */
+	mutex_init(&vcapture->lock);
+
+	/* Initialize the vb2 queue */
+	q = &vcapture->queue;
+	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	q->io_modes = VB2_MMAP | VB2_DMABUF;
+	if (vimc_allocator == VIMC_ALLOCATOR_VMALLOC)
+		q->io_modes |= VB2_USERPTR;
+	q->drv_priv = vcapture;
+	q->buf_struct_size = sizeof(struct vimc_capture_buffer);
+	q->ops = &vimc_capture_qops;
+	q->mem_ops = vimc_allocator == VIMC_ALLOCATOR_DMA_CONTIG
+		   ? &vb2_dma_contig_memops : &vb2_vmalloc_memops;
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	q->min_reqbufs_allocation = 2;
+	q->lock = &vcapture->lock;
+	q->dev = v4l2_dev->dev;
+
+	ret = vb2_queue_init(q);
+	if (ret) {
+		dev_err(vimc->mdev.dev, "%s: vb2 queue init failed (err=%d)\n",
+			vcfg_name, ret);
+		goto err_clean_m_ent;
+	}
+
+	/* Initialize buffer list and its lock */
+	INIT_LIST_HEAD(&vcapture->buf_list);
+	spin_lock_init(&vcapture->qlock);
+
+	/* Set default frame format */
+	vcapture->format = fmt_default;
+	vpix = vimc_pix_map_by_pixelformat(vcapture->format.pixelformat);
+	vcapture->format.bytesperline = vcapture->format.width * vpix->bpp;
+	vcapture->format.sizeimage = vcapture->format.bytesperline *
+				 vcapture->format.height;
+
+	/* Fill the vimc_ent_device struct */
+	vcapture->ved.ent = &vcapture->vdev.entity;
+	vcapture->ved.process_frame = vimc_capture_process_frame;
+	vcapture->ved.vdev_get_format = vimc_capture_get_format;
+	vcapture->ved.dev = vimc->mdev.dev;
+
+	/* Initialize the video_device struct */
+	vdev = &vcapture->vdev;
+	vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING
+			  | V4L2_CAP_IO_MC;
+	vdev->entity.ops = &vimc_capture_mops;
+	vdev->release = video_device_release_empty;
+	vdev->fops = &vimc_capture_fops;
+	vdev->ioctl_ops = &vimc_capture_ioctl_ops;
+	vdev->lock = &vcapture->lock;
+	vdev->queue = q;
+	vdev->v4l2_dev = v4l2_dev;
+	vdev->vfl_dir = VFL_DIR_RX;
+	strscpy(vdev->name, vcfg_name, sizeof(vdev->name));
+	video_set_drvdata(vdev, &vcapture->ved);
+
+	/* Register the video_device with the v4l2 and the media framework */
+	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+	if (ret) {
+		dev_err(vimc->mdev.dev, "%s: video register failed (err=%d)\n",
+			vcapture->vdev.name, ret);
+		goto err_clean_m_ent;
+	}
+
+	return &vcapture->ved;
+
+err_clean_m_ent:
+	media_entity_cleanup(&vcapture->vdev.entity);
+err_free_vcapture:
+	kfree(vcapture);
+
+	return ERR_PTR(ret);
+}
+
+const struct vimc_ent_type vimc_capture_type = {
+	.add = vimc_capture_add,
+	.unregister = vimc_capture_unregister,
+	.release = vimc_capture_release
+};
diff --git a/drivers/media/test-drivers/vimc/vimc-common.c b/drivers/media/test-drivers/vimc/vimc-common.c
new file mode 100644
index 000000000..4f4fcb26e
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/vimc-common.c
@@ -0,0 +1,423 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * vimc-common.c Virtual Media Controller Driver
+ *
+ * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include <media/v4l2-ctrls.h>
+
+#include "vimc-common.h"
+
+/*
+ * NOTE: non-bayer formats need to come first (necessary for enum_mbus_code
+ * in the scaler)
+ */
+static const struct vimc_pix_map vimc_pix_map_list[] = {
+	/* TODO: add all missing formats */
+
+	/* RGB formats */
+	{
+		.code = {
+			MEDIA_BUS_FMT_BGR888_1X24,
+			MEDIA_BUS_FMT_BGR888_3X8
+		},
+		.pixelformat = V4L2_PIX_FMT_BGR24,
+		.bpp = 3,
+		.bayer = false,
+	},
+	{
+		.code = {
+			MEDIA_BUS_FMT_RGB888_1X24,
+			MEDIA_BUS_FMT_RGB888_2X12_BE,
+			MEDIA_BUS_FMT_RGB888_2X12_LE,
+			MEDIA_BUS_FMT_RGB888_3X8,
+			MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
+			MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA,
+			MEDIA_BUS_FMT_RGB888_1X32_PADHI,
+			MEDIA_BUS_FMT_GBR888_1X24
+		},
+		.pixelformat = V4L2_PIX_FMT_RGB24,
+		.bpp = 3,
+		.bayer = false,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_ARGB8888_1X32 },
+		.pixelformat = V4L2_PIX_FMT_ARGB32,
+		.bpp = 4,
+		.bayer = false,
+	},
+
+	/* Bayer formats */
+	{
+		.code = { MEDIA_BUS_FMT_SBGGR8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SBGGR8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SGBRG8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SGBRG8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SGRBG8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SGRBG8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SRGGB8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SRGGB8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SBGGR10_1X10 },
+		.pixelformat = V4L2_PIX_FMT_SBGGR10,
+		.bpp = 2,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SGBRG10_1X10 },
+		.pixelformat = V4L2_PIX_FMT_SGBRG10,
+		.bpp = 2,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SGRBG10_1X10 },
+		.pixelformat = V4L2_PIX_FMT_SGRBG10,
+		.bpp = 2,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SRGGB10_1X10 },
+		.pixelformat = V4L2_PIX_FMT_SRGGB10,
+		.bpp = 2,
+		.bayer = true,
+	},
+
+	/* 10bit raw bayer a-law compressed to 8 bits */
+	{
+		.code = { MEDIA_BUS_FMT_SBGGR10_ALAW8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SBGGR10ALAW8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SGBRG10_ALAW8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SGBRG10ALAW8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SGRBG10_ALAW8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SGRBG10ALAW8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SRGGB10_ALAW8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SRGGB10ALAW8,
+		.bpp = 1,
+		.bayer = true,
+	},
+
+	/* 10bit raw bayer DPCM compressed to 8 bits */
+	{
+		.code = { MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SBGGR10DPCM8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SGBRG10DPCM8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8 },
+		.pixelformat = V4L2_PIX_FMT_SRGGB10DPCM8,
+		.bpp = 1,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SBGGR12_1X12 },
+		.pixelformat = V4L2_PIX_FMT_SBGGR12,
+		.bpp = 2,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SGBRG12_1X12 },
+		.pixelformat = V4L2_PIX_FMT_SGBRG12,
+		.bpp = 2,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SGRBG12_1X12 },
+		.pixelformat = V4L2_PIX_FMT_SGRBG12,
+		.bpp = 2,
+		.bayer = true,
+	},
+	{
+		.code = { MEDIA_BUS_FMT_SRGGB12_1X12 },
+		.pixelformat = V4L2_PIX_FMT_SRGGB12,
+		.bpp = 2,
+		.bayer = true,
+	},
+};
+
+bool vimc_is_source(struct media_entity *ent)
+{
+	unsigned int i;
+
+	for (i = 0; i < ent->num_pads; i++)
+		if (ent->pads[i].flags & MEDIA_PAD_FL_SINK)
+			return false;
+	return true;
+}
+
+const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i)
+{
+	if (i >= ARRAY_SIZE(vimc_pix_map_list))
+		return NULL;
+
+	return &vimc_pix_map_list[i];
+}
+
+u32 vimc_mbus_code_by_index(unsigned int index)
+{
+	unsigned int i, j;
+
+	for (i = 0; i < ARRAY_SIZE(vimc_pix_map_list); i++) {
+		for (j = 0; j < ARRAY_SIZE(vimc_pix_map_list[i].code); j++) {
+			if (!vimc_pix_map_list[i].code[j])
+				break;
+
+			if (!index)
+				return vimc_pix_map_list[i].code[j];
+			index--;
+		}
+	}
+	return 0;
+}
+
+const struct vimc_pix_map *vimc_pix_map_by_code(u32 code)
+{
+	unsigned int i, j;
+
+	for (i = 0; i < ARRAY_SIZE(vimc_pix_map_list); i++) {
+		for (j = 0; j < ARRAY_SIZE(vimc_pix_map_list[i].code); j++) {
+			if (vimc_pix_map_list[i].code[j] == code)
+				return &vimc_pix_map_list[i];
+		}
+	}
+	return NULL;
+}
+
+const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(vimc_pix_map_list); i++) {
+		if (vimc_pix_map_list[i].pixelformat == pixelformat)
+			return &vimc_pix_map_list[i];
+	}
+	return NULL;
+}
+
+static int vimc_get_pix_format(struct media_pad *pad,
+			       struct v4l2_pix_format *fmt)
+{
+	if (is_media_entity_v4l2_subdev(pad->entity)) {
+		struct v4l2_subdev *sd =
+			media_entity_to_v4l2_subdev(pad->entity);
+		struct v4l2_subdev_format sd_fmt = {
+			.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+			.pad = pad->index,
+		};
+		const struct vimc_pix_map *pix_map;
+		int ret;
+
+		ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sd_fmt);
+		if (ret)
+			return ret;
+
+		v4l2_fill_pix_format(fmt, &sd_fmt.format);
+		pix_map = vimc_pix_map_by_code(sd_fmt.format.code);
+		fmt->pixelformat = pix_map->pixelformat;
+	} else if (is_media_entity_v4l2_video_device(pad->entity)) {
+		struct video_device *vdev = container_of(pad->entity,
+							 struct video_device,
+							 entity);
+		struct vimc_ent_device *ved = video_get_drvdata(vdev);
+
+		if (!ved->vdev_get_format)
+			return -ENOIOCTLCMD;
+
+		ved->vdev_get_format(ved, fmt);
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int vimc_vdev_link_validate(struct media_link *link)
+{
+	struct v4l2_pix_format source_fmt, sink_fmt;
+	int ret;
+
+	ret = vimc_get_pix_format(link->source, &source_fmt);
+	if (ret)
+		return ret;
+
+	ret = vimc_get_pix_format(link->sink, &sink_fmt);
+	if (ret)
+		return ret;
+
+	pr_info("vimc link validate: "
+		"%s:src:%dx%d (0x%x, %d, %d, %d, %d) "
+		"%s:snk:%dx%d (0x%x, %d, %d, %d, %d)\n",
+		/* src */
+		link->source->entity->name,
+		source_fmt.width, source_fmt.height,
+		source_fmt.pixelformat, source_fmt.colorspace,
+		source_fmt.quantization, source_fmt.xfer_func,
+		source_fmt.ycbcr_enc,
+		/* sink */
+		link->sink->entity->name,
+		sink_fmt.width, sink_fmt.height,
+		sink_fmt.pixelformat, sink_fmt.colorspace,
+		sink_fmt.quantization, sink_fmt.xfer_func,
+		sink_fmt.ycbcr_enc);
+
+	/* The width, height and pixelformat must match. */
+	if (source_fmt.width != sink_fmt.width ||
+	    source_fmt.height != sink_fmt.height ||
+	    source_fmt.pixelformat != sink_fmt.pixelformat)
+		return -EPIPE;
+
+	/*
+	 * The field order must match, or the sink field order must be NONE
+	 * to support interlaced hardware connected to bridges that support
+	 * progressive formats only.
+	 */
+	if (source_fmt.field != sink_fmt.field &&
+	    sink_fmt.field != V4L2_FIELD_NONE)
+		return -EPIPE;
+
+	/*
+	 * If colorspace is DEFAULT, then assume all the colorimetry is also
+	 * DEFAULT, return 0 to skip comparing the other colorimetry parameters
+	 */
+	if (source_fmt.colorspace == V4L2_COLORSPACE_DEFAULT ||
+	    sink_fmt.colorspace == V4L2_COLORSPACE_DEFAULT)
+		return 0;
+
+	/* Colorspace must match. */
+	if (source_fmt.colorspace != sink_fmt.colorspace)
+		return -EPIPE;
+
+	/* Colorimetry must match if they are not set to DEFAULT */
+	if (source_fmt.ycbcr_enc != V4L2_YCBCR_ENC_DEFAULT &&
+	    sink_fmt.ycbcr_enc != V4L2_YCBCR_ENC_DEFAULT &&
+	    source_fmt.ycbcr_enc != sink_fmt.ycbcr_enc)
+		return -EPIPE;
+
+	if (source_fmt.quantization != V4L2_QUANTIZATION_DEFAULT &&
+	    sink_fmt.quantization != V4L2_QUANTIZATION_DEFAULT &&
+	    source_fmt.quantization != sink_fmt.quantization)
+		return -EPIPE;
+
+	if (source_fmt.xfer_func != V4L2_XFER_FUNC_DEFAULT &&
+	    sink_fmt.xfer_func != V4L2_XFER_FUNC_DEFAULT &&
+	    source_fmt.xfer_func != sink_fmt.xfer_func)
+		return -EPIPE;
+
+	return 0;
+}
+
+static const struct media_entity_operations vimc_ent_sd_mops = {
+	.link_validate = v4l2_subdev_link_validate,
+};
+
+int vimc_ent_sd_register(struct vimc_ent_device *ved,
+			 struct v4l2_subdev *sd,
+			 struct v4l2_device *v4l2_dev,
+			 const char *const name,
+			 u32 function,
+			 u16 num_pads,
+			 struct media_pad *pads,
+			 const struct v4l2_subdev_internal_ops *int_ops,
+			 const struct v4l2_subdev_ops *sd_ops)
+{
+	int ret;
+
+	/* Fill the vimc_ent_device struct */
+	ved->ent = &sd->entity;
+
+	/* Initialize the subdev */
+	v4l2_subdev_init(sd, sd_ops);
+	sd->internal_ops = int_ops;
+	sd->entity.function = function;
+	sd->entity.ops = &vimc_ent_sd_mops;
+	sd->owner = THIS_MODULE;
+	strscpy(sd->name, name, sizeof(sd->name));
+	v4l2_set_subdevdata(sd, ved);
+
+	/* Expose this subdev to user space */
+	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+	if (sd->ctrl_handler)
+		sd->flags |= V4L2_SUBDEV_FL_HAS_EVENTS;
+
+	/* Initialize the media entity */
+	ret = media_entity_pads_init(&sd->entity, num_pads, pads);
+	if (ret)
+		return ret;
+
+	/*
+	 * Finalize the subdev initialization if it supports active states. Use
+	 * the control handler lock as the state lock if available.
+	 */
+	if (int_ops && int_ops->init_state) {
+		if (sd->ctrl_handler)
+			sd->state_lock = sd->ctrl_handler->lock;
+
+		ret = v4l2_subdev_init_finalize(sd);
+		if (ret) {
+			dev_err(v4l2_dev->dev,
+				"%s: subdev initialization failed (err=%d)\n",
+				name, ret);
+			goto err_clean_m_ent;
+		}
+	}
+
+	/* Register the subdev with the v4l2 and the media framework */
+	ret = v4l2_device_register_subdev(v4l2_dev, sd);
+	if (ret) {
+		dev_err(v4l2_dev->dev,
+			"%s: subdev register failed (err=%d)\n",
+			name, ret);
+		goto err_clean_sd;
+	}
+
+	return 0;
+
+err_clean_sd:
+	v4l2_subdev_cleanup(sd);
+err_clean_m_ent:
+	media_entity_cleanup(&sd->entity);
+	return ret;
+}
diff --git a/drivers/media/test-drivers/vimc/vimc-common.h b/drivers/media/test-drivers/vimc/vimc-common.h
new file mode 100644
index 000000000..861b334ff
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/vimc-common.h
@@ -0,0 +1,284 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * vimc-common.h Virtual Media Controller Driver
+ *
+ * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
+ */
+
+#ifndef _VIMC_COMMON_H_
+#define _VIMC_COMMON_H_
+
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <media/media-device.h>
+#include <media/v4l2-device.h>
+#include <media/tpg/v4l2-tpg.h>
+#include <media/v4l2-ctrls.h>
+
+#define VIMC_PDEV_NAME "vimc"
+
+/* VIMC-specific controls */
+#define VIMC_CID_VIMC_BASE		(0x00f00000 | 0xf000)
+#define VIMC_CID_VIMC_CLASS		(0x00f00000 | 1)
+#define VIMC_CID_TEST_PATTERN		(VIMC_CID_VIMC_BASE + 0)
+#define VIMC_CID_MEAN_WIN_SIZE		(VIMC_CID_VIMC_BASE + 1)
+#define VIMC_CID_OSD_TEXT_MODE		(VIMC_CID_VIMC_BASE + 2)
+
+#define VIMC_FRAME_MAX_WIDTH 4096
+#define VIMC_FRAME_MAX_HEIGHT 2160
+#define VIMC_FRAME_MIN_WIDTH 16
+#define VIMC_FRAME_MIN_HEIGHT 16
+
+#define VIMC_PIXEL_RATE_FIXED		160000000	/* 160 MHz */
+#define VIMC_HBLANK_FIXED		800
+/* VBLANK - vertical blanking (primary FPS control) */
+#define VIMC_VBLANK_MIN			4
+#define VIMC_VBLANK_MAX			65535
+#define VIMC_VBLANK_STEP		1
+#define VIMC_VBLANK_DEFAULT	        3223           /* 30fps vga */
+#define VIMC_PIXELS_THRESHOLD_30FPS	(1920 * 1080) /* 2073600 pixels */
+
+#define VIMC_FRAME_INDEX(lin, col, width, bpp) ((lin * width + col) * bpp)
+
+/* Source and sink pad checks */
+#define VIMC_IS_SRC(pad)	(pad)
+#define VIMC_IS_SINK(pad)	(!(pad))
+
+#define VIMC_PIX_FMT_MAX_CODES 8
+
+extern unsigned int vimc_allocator;
+
+enum vimc_allocator_type {
+	VIMC_ALLOCATOR_VMALLOC = 0,
+	VIMC_ALLOCATOR_DMA_CONTIG = 1,
+};
+
+/**
+ * vimc_colorimetry_clamp - Adjust colorimetry parameters
+ *
+ * @fmt:		the pointer to struct v4l2_pix_format or
+ *			struct v4l2_mbus_framefmt
+ *
+ * Entities must check if colorimetry given by the userspace is valid, if not
+ * then set them as DEFAULT
+ */
+#define vimc_colorimetry_clamp(fmt)					\
+do {									\
+	if ((fmt)->colorspace == V4L2_COLORSPACE_DEFAULT		\
+	    || (fmt)->colorspace > V4L2_COLORSPACE_DCI_P3) {		\
+		(fmt)->colorspace = V4L2_COLORSPACE_DEFAULT;		\
+		(fmt)->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;		\
+		(fmt)->quantization = V4L2_QUANTIZATION_DEFAULT;	\
+		(fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT;		\
+	}								\
+	if ((fmt)->ycbcr_enc > V4L2_YCBCR_ENC_SMPTE240M)		\
+		(fmt)->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;		\
+	if ((fmt)->quantization > V4L2_QUANTIZATION_LIM_RANGE)		\
+		(fmt)->quantization = V4L2_QUANTIZATION_DEFAULT;	\
+	if ((fmt)->xfer_func > V4L2_XFER_FUNC_SMPTE2084)		\
+		(fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT;		\
+} while (0)
+
+/**
+ * struct vimc_pix_map - maps media bus code with v4l2 pixel format
+ *
+ * @code:		media bus format code defined by MEDIA_BUS_FMT_* macros
+ * @bpp:		number of bytes each pixel occupies
+ * @pixelformat:	pixel format defined by V4L2_PIX_FMT_* macros
+ * @bayer:		true if this is a bayer format
+ *
+ * Struct which matches the MEDIA_BUS_FMT_* codes with the corresponding
+ * V4L2_PIX_FMT_* fourcc pixelformat and its bytes per pixel (bpp)
+ */
+struct vimc_pix_map {
+	unsigned int code[VIMC_PIX_FMT_MAX_CODES];
+	unsigned int bpp;
+	u32 pixelformat;
+	bool bayer;
+};
+
+/**
+ * struct vimc_ent_device - core struct that represents an entity in the
+ * topology
+ *
+ * @dev:		a pointer of the device struct of the driver
+ * @ent:		the pointer to struct media_entity for the node
+ * @process_frame:	callback send a frame to that node
+ * @vdev_get_format:	callback that returns the current format a pad, used
+ *			only when is_media_entity_v4l2_video_device(ent) returns
+ *			true
+ *
+ * Each node of the topology must create a vimc_ent_device struct. Depending on
+ * the node it will be of an instance of v4l2_subdev or video_device struct
+ * where both contains a struct media_entity.
+ * Those structures should embedded the vimc_ent_device struct through
+ * v4l2_set_subdevdata() and video_set_drvdata() respectively, allowing the
+ * vimc_ent_device struct to be retrieved from the corresponding struct
+ * media_entity
+ */
+struct vimc_ent_device {
+	struct device *dev;
+	struct media_entity *ent;
+	void * (*process_frame)(struct vimc_ent_device *ved,
+				const void *frame);
+	void (*vdev_get_format)(struct vimc_ent_device *ved,
+			      struct v4l2_pix_format *fmt);
+};
+
+/**
+ * struct vimc_device - main device for vimc driver
+ *
+ * @pipe_cfg:	pointer to the vimc pipeline configuration structure
+ * @ent_devs:	array of vimc_ent_device pointers
+ * @mdev:	the associated media_device parent
+ * @v4l2_dev:	Internal v4l2 parent device
+ */
+struct vimc_device {
+	const struct vimc_pipeline_config *pipe_cfg;
+	struct vimc_ent_device **ent_devs;
+	struct media_device mdev;
+	struct v4l2_device v4l2_dev;
+};
+
+/**
+ * struct vimc_ent_type		Structure for the callbacks of the entity types
+ *
+ *
+ * @add:			initializes and registers
+ *				vimc entity - called from vimc-core
+ * @unregister:			unregisters vimc entity - called from vimc-core
+ * @release:			releases vimc entity - called from the v4l2_dev
+ *				release callback
+ */
+struct vimc_ent_type {
+	struct vimc_ent_device *(*add)(struct vimc_device *vimc,
+				       const char *vcfg_name);
+	void (*unregister)(struct vimc_ent_device *ved);
+	void (*release)(struct vimc_ent_device *ved);
+};
+
+/**
+ * struct vimc_ent_config	Structure which describes individual
+ *				configuration for each entity
+ *
+ * @name:			entity name
+ * @type:			contain the callbacks of this entity type
+ *
+ */
+struct vimc_ent_config {
+	const char *name;
+	const struct vimc_ent_type *type;
+};
+
+enum vimc_sensor_osd_mode {
+	VIMC_SENSOR_OSD_SHOW_ALL = 0,
+	VIMC_SENSOR_OSD_SHOW_COUNTERS = 1,
+	VIMC_SENSOR_OSD_SHOW_NONE = 2
+};
+
+struct vimc_sensor_device {
+	struct vimc_ent_device ved;
+	struct v4l2_subdev sd;
+	struct tpg_data tpg;
+	struct v4l2_ctrl_handler hdl;
+	struct media_pad pad;
+	struct v4l2_ctrl *pixel_rate;
+	struct v4l2_ctrl *hblank;
+	struct v4l2_ctrl *vblank;
+
+	u8 *frame;
+
+	/*
+	 * Virtual "hardware" configuration, filled when the stream starts or
+	 * when controls are set.
+	 */
+	struct {
+		struct v4l2_area size;
+		enum vimc_sensor_osd_mode osd_value;
+		u64 start_stream_ts;
+		unsigned long fps_jiffies;
+	} hw;
+};
+
+/**
+ * vimc_is_source - returns true if the entity has only source pads
+ *
+ * @ent: pointer to &struct media_entity
+ *
+ */
+bool vimc_is_source(struct media_entity *ent);
+
+extern const struct vimc_ent_type vimc_sensor_type;
+extern const struct vimc_ent_type vimc_debayer_type;
+extern const struct vimc_ent_type vimc_scaler_type;
+extern const struct vimc_ent_type vimc_capture_type;
+extern const struct vimc_ent_type vimc_lens_type;
+
+/**
+ * vimc_pix_map_by_index - get vimc_pix_map struct by its index
+ *
+ * @i:			index of the vimc_pix_map struct in vimc_pix_map_list
+ */
+const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i);
+
+/**
+ * vimc_mbus_code_by_index - get mbus code by its index
+ *
+ * @index:		index of the mbus code in vimc_pix_map_list
+ *
+ * Returns 0 if no mbus code is found for the given index.
+ */
+u32 vimc_mbus_code_by_index(unsigned int index);
+
+/**
+ * vimc_pix_map_by_code - get vimc_pix_map struct by media bus code
+ *
+ * @code:		media bus format code defined by MEDIA_BUS_FMT_* macros
+ */
+const struct vimc_pix_map *vimc_pix_map_by_code(u32 code);
+
+/**
+ * vimc_pix_map_by_pixelformat - get vimc_pix_map struct by v4l2 pixel format
+ *
+ * @pixelformat:	pixel format defined by V4L2_PIX_FMT_* macros
+ */
+const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat);
+
+/**
+ * vimc_ent_sd_register - initialize and register a subdev node
+ *
+ * @ved:	the vimc_ent_device struct to be initialize
+ * @sd:		the v4l2_subdev struct to be initialize and registered
+ * @v4l2_dev:	the v4l2 device to register the v4l2_subdev
+ * @name:	name of the sub-device. Please notice that the name must be
+ *		unique.
+ * @function:	media entity function defined by MEDIA_ENT_F_* macros
+ * @num_pads:	number of pads to initialize
+ * @pads:	the array of pads of the entity, the caller should set the
+ *		flags of the pads
+ * @int_ops:	pointer to &struct v4l2_subdev_internal_ops.
+ * @sd_ops:	pointer to &struct v4l2_subdev_ops.
+ *
+ * Helper function initialize and register the struct vimc_ent_device and struct
+ * v4l2_subdev which represents a subdev node in the topology
+ */
+int vimc_ent_sd_register(struct vimc_ent_device *ved,
+			 struct v4l2_subdev *sd,
+			 struct v4l2_device *v4l2_dev,
+			 const char *const name,
+			 u32 function,
+			 u16 num_pads,
+			 struct media_pad *pads,
+			 const struct v4l2_subdev_internal_ops *int_ops,
+			 const struct v4l2_subdev_ops *sd_ops);
+
+/**
+ * vimc_vdev_link_validate - validates a media link
+ *
+ * @link: pointer to &struct media_link
+ *
+ * This function calls validates if a media link is valid for streaming.
+ */
+int vimc_vdev_link_validate(struct media_link *link);
+
+#endif
diff --git a/drivers/media/test-drivers/vimc/vimc-core.c b/drivers/media/test-drivers/vimc/vimc-core.c
new file mode 100644
index 000000000..fee0c7a09
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/vimc-core.c
@@ -0,0 +1,451 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * vimc-core.c Virtual Media Controller Driver
+ *
+ * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/font.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <media/media-device.h>
+#include <media/tpg/v4l2-tpg.h>
+#include <media/v4l2-device.h>
+
+#include "vimc-common.h"
+
+unsigned int vimc_allocator;
+module_param_named(allocator, vimc_allocator, uint, 0444);
+MODULE_PARM_DESC(allocator, " memory allocator selection, default is 0.\n"
+			     "\t\t    0 == vmalloc\n"
+			     "\t\t    1 == dma-contig");
+
+#define VIMC_MDEV_MODEL_NAME "VIMC MDEV"
+
+#define VIMC_DATA_LINK(src, srcpad, sink, sinkpad, link_flags) {	\
+	.src_ent = src,						\
+	.src_pad = srcpad,					\
+	.sink_ent = sink,					\
+	.sink_pad = sinkpad,					\
+	.flags = link_flags,					\
+}
+
+#define VIMC_ANCILLARY_LINK(primary, ancillary) {	\
+	.primary_ent = primary,			\
+	.ancillary_ent = ancillary		\
+}
+
+/* Structure which describes data links between entities */
+struct vimc_data_link {
+	unsigned int src_ent;
+	u16 src_pad;
+	unsigned int sink_ent;
+	u16 sink_pad;
+	u32 flags;
+};
+
+/* Enum to improve clarity when defining vimc_data_links */
+enum vimc_data_link_ents {
+	SENSOR_A,
+	SENSOR_B,
+	DEBAYER_A,
+	DEBAYER_B,
+	RAW_CAPTURE_0,
+	RAW_CAPTURE_1,
+	RGB_YUV_INPUT,
+	SCALER,
+	RGB_YUV_CAPTURE,
+	LENS_A,
+	LENS_B,
+};
+
+/* Structure which describes ancillary links between entities */
+struct vimc_ancillary_link {
+	unsigned int primary_ent;
+	unsigned int ancillary_ent;
+};
+
+/* Structure which describes the whole topology */
+struct vimc_pipeline_config {
+	const struct vimc_ent_config *ents;
+	size_t num_ents;
+	const struct vimc_data_link *data_links;
+	size_t num_data_links;
+	const struct vimc_ancillary_link *ancillary_links;
+	size_t num_ancillary_links;
+};
+
+/* --------------------------------------------------------------------------
+ * Topology Configuration
+ */
+
+static const struct vimc_ent_config ent_config[] = {
+	[SENSOR_A] = {
+		.name = "Sensor A",
+		.type = &vimc_sensor_type
+	},
+	[SENSOR_B] = {
+		.name = "Sensor B",
+		.type = &vimc_sensor_type
+	},
+	[DEBAYER_A] = {
+		.name = "Debayer A",
+		.type = &vimc_debayer_type
+	},
+	[DEBAYER_B] = {
+		.name = "Debayer B",
+		.type = &vimc_debayer_type
+	},
+	[RAW_CAPTURE_0] = {
+		.name = "Raw Capture 0",
+		.type = &vimc_capture_type
+	},
+	[RAW_CAPTURE_1] = {
+		.name = "Raw Capture 1",
+		.type = &vimc_capture_type
+	},
+	[RGB_YUV_INPUT] = {
+		/* TODO: change this to vimc-input when it is implemented */
+		.name = "RGB/YUV Input",
+		.type = &vimc_sensor_type
+	},
+	[SCALER] = {
+		.name = "Scaler",
+		.type = &vimc_scaler_type
+	},
+	[RGB_YUV_CAPTURE] = {
+		.name = "RGB/YUV Capture",
+		.type = &vimc_capture_type
+	},
+	[LENS_A] = {
+		.name = "Lens A",
+		.type = &vimc_lens_type
+	},
+	[LENS_B] = {
+		.name = "Lens B",
+		.type = &vimc_lens_type
+	},
+};
+
+static const struct vimc_data_link data_links[] = {
+	/* Link: Sensor A (Pad 0)->(Pad 0) Debayer A */
+	VIMC_DATA_LINK(SENSOR_A, 0, DEBAYER_A, 0,
+		       MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE),
+	/* Link: Sensor A (Pad 0)->(Pad 0) Raw Capture 0 */
+	VIMC_DATA_LINK(SENSOR_A, 0, RAW_CAPTURE_0, 0,
+		       MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE),
+	/* Link: Sensor B (Pad 0)->(Pad 0) Debayer B */
+	VIMC_DATA_LINK(SENSOR_B, 0, DEBAYER_B, 0,
+		       MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE),
+	/* Link: Sensor B (Pad 0)->(Pad 0) Raw Capture 1 */
+	VIMC_DATA_LINK(SENSOR_B, 0, RAW_CAPTURE_1, 0,
+		       MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE),
+	/* Link: Debayer A (Pad 1)->(Pad 0) Scaler */
+	VIMC_DATA_LINK(DEBAYER_A, 1, SCALER, 0, MEDIA_LNK_FL_ENABLED),
+	/* Link: Debayer B (Pad 1)->(Pad 0) Scaler */
+	VIMC_DATA_LINK(DEBAYER_B, 1, SCALER, 0, 0),
+	/* Link: RGB/YUV Input (Pad 0)->(Pad 0) Scaler */
+	VIMC_DATA_LINK(RGB_YUV_INPUT, 0, SCALER, 0, 0),
+	/* Link: Scaler (Pad 1)->(Pad 0) RGB/YUV Capture */
+	VIMC_DATA_LINK(SCALER, 1, RGB_YUV_CAPTURE, 0,
+		       MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE),
+};
+
+static const struct vimc_ancillary_link ancillary_links[] = {
+	/* Link: Sensor A -> Lens A */
+	VIMC_ANCILLARY_LINK(0, 9),
+	/* Link: Sensor B -> Lens B */
+	VIMC_ANCILLARY_LINK(1, 10),
+};
+
+static struct vimc_pipeline_config pipe_cfg = {
+	.ents		     = ent_config,
+	.num_ents	     = ARRAY_SIZE(ent_config),
+	.data_links	     = data_links,
+	.num_data_links	     = ARRAY_SIZE(data_links),
+	.ancillary_links     = ancillary_links,
+	.num_ancillary_links = ARRAY_SIZE(ancillary_links),
+};
+
+/* -------------------------------------------------------------------------- */
+
+static void vimc_rm_links(struct vimc_device *vimc)
+{
+	unsigned int i;
+
+	for (i = 0; i < vimc->pipe_cfg->num_ents; i++)
+		media_entity_remove_links(vimc->ent_devs[i]->ent);
+}
+
+static int vimc_create_links(struct vimc_device *vimc)
+{
+	unsigned int i;
+	int ret;
+
+	/* Initialize the links between entities */
+	for (i = 0; i < vimc->pipe_cfg->num_data_links; i++) {
+		const struct vimc_data_link *link = &vimc->pipe_cfg->data_links[i];
+
+		struct vimc_ent_device *ved_src =
+			vimc->ent_devs[link->src_ent];
+		struct vimc_ent_device *ved_sink =
+			vimc->ent_devs[link->sink_ent];
+
+		ret = media_create_pad_link(ved_src->ent, link->src_pad,
+					    ved_sink->ent, link->sink_pad,
+					    link->flags);
+		if (ret)
+			goto err_rm_links;
+	}
+
+	for (i = 0; i < vimc->pipe_cfg->num_ancillary_links; i++) {
+		const struct vimc_ancillary_link *link = &vimc->pipe_cfg->ancillary_links[i];
+
+		struct vimc_ent_device *ved_primary =
+			vimc->ent_devs[link->primary_ent];
+		struct vimc_ent_device *ved_ancillary =
+			vimc->ent_devs[link->ancillary_ent];
+		struct media_link *ret_link =
+			media_create_ancillary_link(ved_primary->ent, ved_ancillary->ent);
+
+		if (IS_ERR(ret_link)) {
+			ret = PTR_ERR(ret_link);
+			goto err_rm_links;
+		}
+	}
+
+	return 0;
+
+err_rm_links:
+	vimc_rm_links(vimc);
+	return ret;
+}
+
+static void vimc_release_subdevs(struct vimc_device *vimc)
+{
+	unsigned int i;
+
+	for (i = 0; i < vimc->pipe_cfg->num_ents; i++)
+		if (vimc->ent_devs[i])
+			vimc->pipe_cfg->ents[i].type->release(vimc->ent_devs[i]);
+}
+
+static void vimc_unregister_subdevs(struct vimc_device *vimc)
+{
+	unsigned int i;
+
+	for (i = 0; i < vimc->pipe_cfg->num_ents; i++)
+		if (vimc->ent_devs[i] && vimc->pipe_cfg->ents[i].type->unregister)
+			vimc->pipe_cfg->ents[i].type->unregister(vimc->ent_devs[i]);
+}
+
+static int vimc_add_subdevs(struct vimc_device *vimc)
+{
+	unsigned int i;
+
+	for (i = 0; i < vimc->pipe_cfg->num_ents; i++) {
+		dev_dbg(vimc->mdev.dev, "new entity for %s\n",
+			vimc->pipe_cfg->ents[i].name);
+		vimc->ent_devs[i] = vimc->pipe_cfg->ents[i].type->add(vimc,
+					vimc->pipe_cfg->ents[i].name);
+		if (IS_ERR(vimc->ent_devs[i])) {
+			int err = PTR_ERR(vimc->ent_devs[i]);
+
+			dev_err(vimc->mdev.dev, "adding entity %s failed (%d)\n",
+				vimc->pipe_cfg->ents[i].name, err);
+			vimc->ent_devs[i] = NULL;
+			vimc_unregister_subdevs(vimc);
+			vimc_release_subdevs(vimc);
+			return err;
+		}
+	}
+	return 0;
+}
+
+static void vimc_v4l2_dev_release(struct v4l2_device *v4l2_dev)
+{
+	struct vimc_device *vimc =
+		container_of(v4l2_dev, struct vimc_device, v4l2_dev);
+
+	vimc_release_subdevs(vimc);
+	media_device_cleanup(&vimc->mdev);
+	kfree(vimc->ent_devs);
+	kfree(vimc);
+}
+
+static int vimc_register_devices(struct vimc_device *vimc)
+{
+	int ret;
+
+	/* Register the v4l2 struct */
+	ret = v4l2_device_register(vimc->mdev.dev, &vimc->v4l2_dev);
+	if (ret) {
+		dev_err(vimc->mdev.dev,
+			"v4l2 device register failed (err=%d)\n", ret);
+		return ret;
+	}
+	/* allocate ent_devs */
+	vimc->ent_devs = kzalloc_objs(*vimc->ent_devs, vimc->pipe_cfg->num_ents);
+	if (!vimc->ent_devs) {
+		ret = -ENOMEM;
+		goto err_v4l2_unregister;
+	}
+
+	/* Invoke entity config hooks to initialize and register subdevs */
+	ret = vimc_add_subdevs(vimc);
+	if (ret)
+		goto err_free_ent_devs;
+
+	/* Initialize links */
+	ret = vimc_create_links(vimc);
+	if (ret)
+		goto err_rm_subdevs;
+
+	/* Register the media device */
+	ret = media_device_register(&vimc->mdev);
+	if (ret) {
+		dev_err(vimc->mdev.dev,
+			"media device register failed (err=%d)\n", ret);
+		goto err_rm_subdevs;
+	}
+
+	/* Expose all subdev's nodes*/
+	ret = v4l2_device_register_subdev_nodes(&vimc->v4l2_dev);
+	if (ret) {
+		dev_err(vimc->mdev.dev,
+			"vimc subdev nodes registration failed (err=%d)\n",
+			ret);
+		goto err_mdev_unregister;
+	}
+
+	return 0;
+
+err_mdev_unregister:
+	media_device_unregister(&vimc->mdev);
+err_rm_subdevs:
+	vimc_unregister_subdevs(vimc);
+	vimc_release_subdevs(vimc);
+err_free_ent_devs:
+	kfree(vimc->ent_devs);
+err_v4l2_unregister:
+	v4l2_device_unregister(&vimc->v4l2_dev);
+
+	return ret;
+}
+
+static int vimc_probe(struct platform_device *pdev)
+{
+	const struct font_desc *font = find_font("VGA8x16");
+	struct vimc_device *vimc;
+	int ret;
+
+	dev_dbg(&pdev->dev, "probe");
+
+	if (!font) {
+		dev_err(&pdev->dev, "could not find font\n");
+		return -ENODEV;
+	}
+
+	tpg_set_font(font->data);
+
+	if (vimc_allocator == VIMC_ALLOCATOR_DMA_CONTIG)
+		dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+
+	vimc = kzalloc_obj(*vimc);
+	if (!vimc)
+		return -ENOMEM;
+
+	vimc->pipe_cfg = &pipe_cfg;
+
+	/* Link the media device within the v4l2_device */
+	vimc->v4l2_dev.mdev = &vimc->mdev;
+
+	/* Initialize media device */
+	strscpy(vimc->mdev.model, VIMC_MDEV_MODEL_NAME,
+		sizeof(vimc->mdev.model));
+	vimc->mdev.dev = &pdev->dev;
+	media_device_init(&vimc->mdev);
+
+	ret = vimc_register_devices(vimc);
+	if (ret) {
+		media_device_cleanup(&vimc->mdev);
+		kfree(vimc);
+		return ret;
+	}
+	/*
+	 * the release cb is set only after successful registration.
+	 * if the registration fails, we release directly from probe
+	 */
+
+	vimc->v4l2_dev.release = vimc_v4l2_dev_release;
+	platform_set_drvdata(pdev, vimc);
+	return 0;
+}
+
+static void vimc_remove(struct platform_device *pdev)
+{
+	struct vimc_device *vimc = platform_get_drvdata(pdev);
+
+	dev_dbg(&pdev->dev, "remove");
+
+	vimc_unregister_subdevs(vimc);
+	media_device_unregister(&vimc->mdev);
+	v4l2_device_unregister(&vimc->v4l2_dev);
+	v4l2_device_put(&vimc->v4l2_dev);
+}
+
+static void vimc_dev_release(struct device *dev)
+{
+}
+
+static struct platform_device vimc_pdev = {
+	.name = VIMC_PDEV_NAME,
+	.dev.release = vimc_dev_release,
+};
+
+static struct platform_driver vimc_pdrv = {
+	.probe		= vimc_probe,
+	.remove		= vimc_remove,
+	.driver		= {
+		.name	= VIMC_PDEV_NAME,
+	},
+};
+
+static int __init vimc_init(void)
+{
+	int ret;
+
+	ret = platform_device_register(&vimc_pdev);
+	if (ret) {
+		dev_err(&vimc_pdev.dev,
+			"platform device registration failed (err=%d)\n", ret);
+		platform_device_put(&vimc_pdev);
+		return ret;
+	}
+
+	ret = platform_driver_register(&vimc_pdrv);
+	if (ret) {
+		dev_err(&vimc_pdev.dev,
+			"platform driver registration failed (err=%d)\n", ret);
+		platform_device_unregister(&vimc_pdev);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void __exit vimc_exit(void)
+{
+	platform_driver_unregister(&vimc_pdrv);
+
+	platform_device_unregister(&vimc_pdev);
+}
+
+module_init(vimc_init);
+module_exit(vimc_exit);
+
+MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC)");
+MODULE_AUTHOR("Helen Fornazier <helen.fornazier@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/test-drivers/vimc/vimc-debayer.c b/drivers/media/test-drivers/vimc/vimc-debayer.c
new file mode 100644
index 000000000..0c2e715a8
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/vimc-debayer.c
@@ -0,0 +1,612 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * vimc-debayer.c Virtual Media Controller Driver
+ *
+ * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
+ */
+
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/vmalloc.h>
+#include <linux/v4l2-mediabus.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-subdev.h>
+
+#include "vimc-common.h"
+
+/* TODO: Add support for more output formats, we only support RGB888 for now. */
+#define VIMC_DEBAYER_SOURCE_MBUS_FMT	MEDIA_BUS_FMT_RGB888_1X24
+
+enum vimc_debayer_rgb_colors {
+	VIMC_DEBAYER_RED = 0,
+	VIMC_DEBAYER_GREEN = 1,
+	VIMC_DEBAYER_BLUE = 2,
+};
+
+struct vimc_debayer_pix_map {
+	u32 code;
+	enum vimc_debayer_rgb_colors order[2][2];
+};
+
+struct vimc_debayer_device {
+	struct vimc_ent_device ved;
+	struct v4l2_subdev sd;
+	struct v4l2_ctrl_handler hdl;
+	struct media_pad pads[2];
+
+	u8 *src_frame;
+
+	void (*set_rgb_src)(struct vimc_debayer_device *vdebayer,
+			    unsigned int lin, unsigned int col,
+			    unsigned int rgb[3]);
+
+	/*
+	 * Virtual "hardware" configuration, filled when the stream starts or
+	 * when controls are set.
+	 */
+	struct {
+		const struct vimc_debayer_pix_map *sink_pix_map;
+		unsigned int sink_bpp;
+		struct v4l2_area size;
+		unsigned int mean_win_size;
+		u32 src_code;
+	} hw;
+};
+
+static const struct v4l2_mbus_framefmt sink_fmt_default = {
+	.width = 640,
+	.height = 480,
+	.code = MEDIA_BUS_FMT_SRGGB8_1X8,
+	.field = V4L2_FIELD_NONE,
+	.colorspace = V4L2_COLORSPACE_SRGB,
+};
+
+static const u32 vimc_debayer_src_mbus_codes[] = {
+	MEDIA_BUS_FMT_GBR888_1X24,
+	MEDIA_BUS_FMT_BGR888_1X24,
+	MEDIA_BUS_FMT_BGR888_3X8,
+	MEDIA_BUS_FMT_RGB888_1X24,
+	MEDIA_BUS_FMT_RGB888_2X12_BE,
+	MEDIA_BUS_FMT_RGB888_2X12_LE,
+	MEDIA_BUS_FMT_RGB888_3X8,
+	MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
+	MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA,
+	MEDIA_BUS_FMT_RGB888_1X32_PADHI,
+};
+
+static const struct vimc_debayer_pix_map vimc_debayer_pix_map_list[] = {
+	{
+		.code = MEDIA_BUS_FMT_SBGGR8_1X8,
+		.order = { { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN },
+			   { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGBRG8_1X8,
+		.order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE },
+			   { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGRBG8_1X8,
+		.order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED },
+			   { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SRGGB8_1X8,
+		.order = { { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN },
+			   { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SBGGR10_1X10,
+		.order = { { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN },
+			   { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGBRG10_1X10,
+		.order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE },
+			   { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGRBG10_1X10,
+		.order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED },
+			   { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SRGGB10_1X10,
+		.order = { { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN },
+			   { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SBGGR12_1X12,
+		.order = { { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN },
+			   { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGBRG12_1X12,
+		.order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE },
+			   { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGRBG12_1X12,
+		.order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED },
+			   { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN } }
+	},
+	{
+		.code = MEDIA_BUS_FMT_SRGGB12_1X12,
+		.order = { { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN },
+			   { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE } }
+	},
+};
+
+static const struct vimc_debayer_pix_map *vimc_debayer_pix_map_by_code(u32 code)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(vimc_debayer_pix_map_list); i++)
+		if (vimc_debayer_pix_map_list[i].code == code)
+			return &vimc_debayer_pix_map_list[i];
+
+	return NULL;
+}
+
+static bool vimc_debayer_src_code_is_valid(u32 code)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(vimc_debayer_src_mbus_codes); i++)
+		if (vimc_debayer_src_mbus_codes[i] == code)
+			return true;
+
+	return false;
+}
+
+static int vimc_debayer_init_state(struct v4l2_subdev *sd,
+				   struct v4l2_subdev_state *sd_state)
+{
+	struct v4l2_mbus_framefmt *mf;
+
+	mf = v4l2_subdev_state_get_format(sd_state, 0);
+	*mf = sink_fmt_default;
+
+	mf = v4l2_subdev_state_get_format(sd_state, 1);
+	*mf = sink_fmt_default;
+	mf->code = VIMC_DEBAYER_SOURCE_MBUS_FMT;
+
+	return 0;
+}
+
+static int vimc_debayer_enum_mbus_code(struct v4l2_subdev *sd,
+				       struct v4l2_subdev_state *sd_state,
+				       struct v4l2_subdev_mbus_code_enum *code)
+{
+	if (VIMC_IS_SRC(code->pad)) {
+		if (code->index >= ARRAY_SIZE(vimc_debayer_src_mbus_codes))
+			return -EINVAL;
+
+		code->code = vimc_debayer_src_mbus_codes[code->index];
+	} else {
+		if (code->index >= ARRAY_SIZE(vimc_debayer_pix_map_list))
+			return -EINVAL;
+
+		code->code = vimc_debayer_pix_map_list[code->index].code;
+	}
+
+	return 0;
+}
+
+static int vimc_debayer_enum_frame_size(struct v4l2_subdev *sd,
+					struct v4l2_subdev_state *sd_state,
+					struct v4l2_subdev_frame_size_enum *fse)
+{
+	if (fse->index)
+		return -EINVAL;
+
+	if (VIMC_IS_SINK(fse->pad)) {
+		const struct vimc_debayer_pix_map *vpix =
+			vimc_debayer_pix_map_by_code(fse->code);
+
+		if (!vpix)
+			return -EINVAL;
+	} else if (!vimc_debayer_src_code_is_valid(fse->code)) {
+		return -EINVAL;
+	}
+
+	fse->min_width = VIMC_FRAME_MIN_WIDTH;
+	fse->max_width = VIMC_FRAME_MAX_WIDTH;
+	fse->min_height = VIMC_FRAME_MIN_HEIGHT;
+	fse->max_height = VIMC_FRAME_MAX_HEIGHT;
+
+	return 0;
+}
+
+static void vimc_debayer_adjust_sink_fmt(struct v4l2_mbus_framefmt *fmt)
+{
+	const struct vimc_debayer_pix_map *vpix;
+
+	/* Don't accept a code that is not on the debayer table */
+	vpix = vimc_debayer_pix_map_by_code(fmt->code);
+	if (!vpix)
+		fmt->code = sink_fmt_default.code;
+
+	fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH,
+			     VIMC_FRAME_MAX_WIDTH) & ~1;
+	fmt->height = clamp_t(u32, fmt->height, VIMC_FRAME_MIN_HEIGHT,
+			      VIMC_FRAME_MAX_HEIGHT) & ~1;
+
+	if (fmt->field == V4L2_FIELD_ANY)
+		fmt->field = sink_fmt_default.field;
+
+	vimc_colorimetry_clamp(fmt);
+}
+
+static int vimc_debayer_set_fmt(struct v4l2_subdev *sd,
+				struct v4l2_subdev_state *sd_state,
+				struct v4l2_subdev_format *fmt)
+{
+	struct vimc_debayer_device *vdebayer = v4l2_get_subdevdata(sd);
+	struct v4l2_mbus_framefmt *format;
+
+	/* Do not change the format while stream is on. */
+	if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE && vdebayer->src_frame)
+		return -EBUSY;
+
+	/*
+	 * Do not change the format of the source pad, it is propagated from
+	 * the sink.
+	 */
+	if (VIMC_IS_SRC(fmt->pad))
+		return v4l2_subdev_get_fmt(sd, sd_state, fmt);
+
+	/* Set the new format in the sink pad. */
+	vimc_debayer_adjust_sink_fmt(&fmt->format);
+
+	format = v4l2_subdev_state_get_format(sd_state, 0);
+
+	dev_dbg(vdebayer->ved.dev, "%s: sink format update: "
+		"old:%dx%d (0x%x, %d, %d, %d, %d) "
+		"new:%dx%d (0x%x, %d, %d, %d, %d)\n", vdebayer->sd.name,
+		/* old */
+		format->width, format->height, format->code,
+		format->colorspace, format->quantization,
+		format->xfer_func, format->ycbcr_enc,
+		/* new */
+		fmt->format.width, fmt->format.height, fmt->format.code,
+		fmt->format.colorspace,	fmt->format.quantization,
+		fmt->format.xfer_func, fmt->format.ycbcr_enc);
+
+	*format = fmt->format;
+
+	/* Propagate the format to the source pad. */
+	format = v4l2_subdev_state_get_format(sd_state, 1);
+	*format = fmt->format;
+	format->code = VIMC_DEBAYER_SOURCE_MBUS_FMT;
+
+	return 0;
+}
+
+static const struct v4l2_subdev_pad_ops vimc_debayer_pad_ops = {
+	.enum_mbus_code		= vimc_debayer_enum_mbus_code,
+	.enum_frame_size	= vimc_debayer_enum_frame_size,
+	.get_fmt		= v4l2_subdev_get_fmt,
+	.set_fmt		= vimc_debayer_set_fmt,
+};
+
+static void vimc_debayer_process_rgb_frame(struct vimc_debayer_device *vdebayer,
+					   unsigned int lin,
+					   unsigned int col,
+					   unsigned int rgb[3])
+{
+	const struct vimc_pix_map *vpix;
+	unsigned int i, index;
+
+	vpix = vimc_pix_map_by_code(vdebayer->hw.src_code);
+	index = VIMC_FRAME_INDEX(lin, col, vdebayer->hw.size.width, 3);
+	for (i = 0; i < 3; i++) {
+		switch (vpix->pixelformat) {
+		case V4L2_PIX_FMT_RGB24:
+			vdebayer->src_frame[index + i] = rgb[i];
+			break;
+		case V4L2_PIX_FMT_BGR24:
+			vdebayer->src_frame[index + i] = rgb[2 - i];
+			break;
+		}
+	}
+}
+
+static int vimc_debayer_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct vimc_debayer_device *vdebayer = v4l2_get_subdevdata(sd);
+
+	if (enable) {
+		const struct v4l2_mbus_framefmt *sink_fmt;
+		const struct v4l2_mbus_framefmt *src_fmt;
+		struct v4l2_subdev_state *state;
+		const struct vimc_pix_map *vpix;
+		unsigned int frame_size;
+
+		if (vdebayer->src_frame)
+			return 0;
+
+		state = v4l2_subdev_lock_and_get_active_state(sd);
+		sink_fmt = v4l2_subdev_state_get_format(state, 0);
+		src_fmt = v4l2_subdev_state_get_format(state, 1);
+
+		/* Calculate the frame size of the source pad */
+		vpix = vimc_pix_map_by_code(src_fmt->code);
+		frame_size = src_fmt->width * src_fmt->height * vpix->bpp;
+
+		/* Save the bytes per pixel of the sink */
+		vpix = vimc_pix_map_by_code(sink_fmt->code);
+		vdebayer->hw.sink_bpp = vpix->bpp;
+
+		/* Get the corresponding pixel map from the table */
+		vdebayer->hw.sink_pix_map =
+			vimc_debayer_pix_map_by_code(sink_fmt->code);
+
+		vdebayer->hw.size.width = sink_fmt->width;
+		vdebayer->hw.size.height = sink_fmt->height;
+
+		vdebayer->hw.src_code = src_fmt->code;
+
+		v4l2_subdev_unlock_state(state);
+
+		/*
+		 * Allocate the frame buffer. Use vmalloc to be able to
+		 * allocate a large amount of memory
+		 */
+		vdebayer->src_frame = vmalloc(frame_size);
+		if (!vdebayer->src_frame)
+			return -ENOMEM;
+	} else {
+		if (!vdebayer->src_frame)
+			return 0;
+
+		vfree(vdebayer->src_frame);
+		vdebayer->src_frame = NULL;
+	}
+
+	return 0;
+}
+
+static const struct v4l2_subdev_core_ops vimc_debayer_core_ops = {
+	.log_status = v4l2_ctrl_subdev_log_status,
+	.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
+static const struct v4l2_subdev_video_ops vimc_debayer_video_ops = {
+	.s_stream = vimc_debayer_s_stream,
+};
+
+static const struct v4l2_subdev_ops vimc_debayer_ops = {
+	.core = &vimc_debayer_core_ops,
+	.pad = &vimc_debayer_pad_ops,
+	.video = &vimc_debayer_video_ops,
+};
+
+static const struct v4l2_subdev_internal_ops vimc_debayer_internal_ops = {
+	.init_state = vimc_debayer_init_state,
+};
+
+static unsigned int vimc_debayer_get_val(const u8 *bytes,
+					 const unsigned int n_bytes)
+{
+	unsigned int i;
+	unsigned int acc = 0;
+
+	for (i = 0; i < n_bytes; i++)
+		acc = acc + (bytes[i] << (8 * i));
+
+	return acc;
+}
+
+static void vimc_debayer_calc_rgb_sink(struct vimc_debayer_device *vdebayer,
+				       const u8 *frame,
+				       const unsigned int lin,
+				       const unsigned int col,
+				       unsigned int rgb[3])
+{
+	unsigned int i, seek, wlin, wcol;
+	unsigned int n_rgb[3] = {0, 0, 0};
+
+	for (i = 0; i < 3; i++)
+		rgb[i] = 0;
+
+	/*
+	 * Calculate how many we need to subtract to get to the pixel in
+	 * the top left corner of the mean window (considering the current
+	 * pixel as the center)
+	 */
+	seek = vdebayer->hw.mean_win_size / 2;
+
+	/* Sum the values of the colors in the mean window */
+
+	dev_dbg(vdebayer->ved.dev,
+		"deb: %s: --- Calc pixel %dx%d, window mean %d, seek %d ---\n",
+		vdebayer->sd.name, lin, col, vdebayer->hw.size.height, seek);
+
+	/*
+	 * Iterate through all the lines in the mean window, start
+	 * with zero if the pixel is outside the frame and don't pass
+	 * the height when the pixel is in the bottom border of the
+	 * frame
+	 */
+	for (wlin = seek > lin ? 0 : lin - seek;
+	     wlin < lin + seek + 1 && wlin < vdebayer->hw.size.height;
+	     wlin++) {
+
+		/*
+		 * Iterate through all the columns in the mean window, start
+		 * with zero if the pixel is outside the frame and don't pass
+		 * the width when the pixel is in the right border of the
+		 * frame
+		 */
+		for (wcol = seek > col ? 0 : col - seek;
+		     wcol < col + seek + 1 && wcol < vdebayer->hw.size.width;
+		     wcol++) {
+			enum vimc_debayer_rgb_colors color;
+			unsigned int index;
+
+			/* Check which color this pixel is */
+			color = vdebayer->hw.sink_pix_map->order[wlin % 2][wcol % 2];
+
+			index = VIMC_FRAME_INDEX(wlin, wcol,
+						 vdebayer->hw.size.width,
+						 vdebayer->hw.sink_bpp);
+
+			dev_dbg(vdebayer->ved.dev,
+				"deb: %s: RGB CALC: frame index %d, win pos %dx%d, color %d\n",
+				vdebayer->sd.name, index, wlin, wcol, color);
+
+			/* Get its value */
+			rgb[color] = rgb[color] +
+				vimc_debayer_get_val(&frame[index],
+						     vdebayer->hw.sink_bpp);
+
+			/* Save how many values we already added */
+			n_rgb[color]++;
+
+			dev_dbg(vdebayer->ved.dev, "deb: %s: RGB CALC: val %d, n %d\n",
+				vdebayer->sd.name, rgb[color], n_rgb[color]);
+		}
+	}
+
+	/* Calculate the mean */
+	for (i = 0; i < 3; i++) {
+		dev_dbg(vdebayer->ved.dev,
+			"deb: %s: PRE CALC: %dx%d Color %d, val %d, n %d\n",
+			vdebayer->sd.name, lin, col, i, rgb[i], n_rgb[i]);
+
+		if (n_rgb[i])
+			rgb[i] = rgb[i] / n_rgb[i];
+
+		dev_dbg(vdebayer->ved.dev,
+			"deb: %s: FINAL CALC: %dx%d Color %d, val %d\n",
+			vdebayer->sd.name, lin, col, i, rgb[i]);
+	}
+}
+
+static void *vimc_debayer_process_frame(struct vimc_ent_device *ved,
+					const void *sink_frame)
+{
+	struct vimc_debayer_device *vdebayer =
+		container_of(ved, struct vimc_debayer_device, ved);
+
+	unsigned int rgb[3];
+	unsigned int i, j;
+
+	/* If the stream in this node is not active, just return */
+	if (!vdebayer->src_frame)
+		return ERR_PTR(-EINVAL);
+
+	for (i = 0; i < vdebayer->hw.size.height; i++)
+		for (j = 0; j < vdebayer->hw.size.width; j++) {
+			vimc_debayer_calc_rgb_sink(vdebayer, sink_frame, i, j, rgb);
+			vdebayer->set_rgb_src(vdebayer, i, j, rgb);
+		}
+
+	return vdebayer->src_frame;
+}
+
+static int vimc_debayer_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vimc_debayer_device *vdebayer =
+		container_of(ctrl->handler, struct vimc_debayer_device, hdl);
+
+	switch (ctrl->id) {
+	case VIMC_CID_MEAN_WIN_SIZE:
+		vdebayer->hw.mean_win_size = ctrl->val;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vimc_debayer_ctrl_ops = {
+	.s_ctrl = vimc_debayer_s_ctrl,
+};
+
+static void vimc_debayer_release(struct vimc_ent_device *ved)
+{
+	struct vimc_debayer_device *vdebayer =
+		container_of(ved, struct vimc_debayer_device, ved);
+
+	v4l2_ctrl_handler_free(&vdebayer->hdl);
+	v4l2_subdev_cleanup(&vdebayer->sd);
+	media_entity_cleanup(vdebayer->ved.ent);
+	kfree(vdebayer);
+}
+
+static const struct v4l2_ctrl_config vimc_debayer_ctrl_class = {
+	.flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY,
+	.id = VIMC_CID_VIMC_CLASS,
+	.name = "VIMC Controls",
+	.type = V4L2_CTRL_TYPE_CTRL_CLASS,
+};
+
+static const struct v4l2_ctrl_config vimc_debayer_ctrl_mean_win_size = {
+	.ops = &vimc_debayer_ctrl_ops,
+	.id = VIMC_CID_MEAN_WIN_SIZE,
+	.name = "Debayer Mean Window Size",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.min = 1,
+	.max = 25,
+	.step = 2,
+	.def = 3,
+};
+
+static struct vimc_ent_device *vimc_debayer_add(struct vimc_device *vimc,
+						const char *vcfg_name)
+{
+	struct v4l2_device *v4l2_dev = &vimc->v4l2_dev;
+	struct vimc_debayer_device *vdebayer;
+	int ret;
+
+	/* Allocate the vdebayer struct */
+	vdebayer = kzalloc_obj(*vdebayer);
+	if (!vdebayer)
+		return ERR_PTR(-ENOMEM);
+
+	/* Create controls: */
+	v4l2_ctrl_handler_init(&vdebayer->hdl, 2);
+	v4l2_ctrl_new_custom(&vdebayer->hdl, &vimc_debayer_ctrl_class, NULL);
+	v4l2_ctrl_new_custom(&vdebayer->hdl, &vimc_debayer_ctrl_mean_win_size, NULL);
+	vdebayer->sd.ctrl_handler = &vdebayer->hdl;
+	if (vdebayer->hdl.error) {
+		ret = vdebayer->hdl.error;
+		goto err_free_vdebayer;
+	}
+
+	/* Initialize ved and sd */
+	vdebayer->pads[0].flags = MEDIA_PAD_FL_SINK;
+	vdebayer->pads[1].flags = MEDIA_PAD_FL_SOURCE;
+
+	ret = vimc_ent_sd_register(&vdebayer->ved, &vdebayer->sd, v4l2_dev,
+				   vcfg_name,
+				   MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV, 2,
+				   vdebayer->pads, &vimc_debayer_internal_ops,
+				   &vimc_debayer_ops);
+	if (ret)
+		goto err_free_hdl;
+
+	vdebayer->ved.process_frame = vimc_debayer_process_frame;
+	vdebayer->ved.dev = vimc->mdev.dev;
+	vdebayer->hw.mean_win_size = vimc_debayer_ctrl_mean_win_size.def;
+
+	vdebayer->set_rgb_src = vimc_debayer_process_rgb_frame;
+
+	return &vdebayer->ved;
+
+err_free_hdl:
+	v4l2_ctrl_handler_free(&vdebayer->hdl);
+err_free_vdebayer:
+	kfree(vdebayer);
+
+	return ERR_PTR(ret);
+}
+
+const struct vimc_ent_type vimc_debayer_type = {
+	.add = vimc_debayer_add,
+	.release = vimc_debayer_release
+};
diff --git a/drivers/media/test-drivers/vimc/vimc-lens.c b/drivers/media/test-drivers/vimc/vimc-lens.c
new file mode 100644
index 000000000..a08fa3d5c
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/vimc-lens.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * vimc-lens.c Virtual Media Controller Driver
+ * Copyright (C) 2022 Google, Inc
+ * Author: yunkec@google.com (Yunke Cao)
+ */
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-subdev.h>
+
+#include "vimc-common.h"
+
+#define VIMC_LENS_MAX_FOCUS_POS	1023
+#define VIMC_LENS_MAX_FOCUS_STEP	1
+
+struct vimc_lens_device {
+	struct vimc_ent_device ved;
+	struct v4l2_subdev sd;
+	struct v4l2_ctrl_handler hdl;
+	u32 focus_absolute;
+};
+
+static const struct v4l2_subdev_core_ops vimc_lens_core_ops = {
+	.log_status = v4l2_ctrl_subdev_log_status,
+	.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
+static const struct v4l2_subdev_ops vimc_lens_ops = {
+	.core = &vimc_lens_core_ops
+};
+
+static int vimc_lens_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vimc_lens_device *vlens =
+		container_of(ctrl->handler, struct vimc_lens_device, hdl);
+	if (ctrl->id == V4L2_CID_FOCUS_ABSOLUTE) {
+		vlens->focus_absolute = ctrl->val;
+		return 0;
+	}
+	return -EINVAL;
+}
+
+static const struct v4l2_ctrl_ops vimc_lens_ctrl_ops = {
+	.s_ctrl = vimc_lens_s_ctrl,
+};
+
+static struct vimc_ent_device *vimc_lens_add(struct vimc_device *vimc,
+					     const char *vcfg_name)
+{
+	struct v4l2_device *v4l2_dev = &vimc->v4l2_dev;
+	struct vimc_lens_device *vlens;
+	int ret;
+
+	/* Allocate the vlens struct */
+	vlens = kzalloc_obj(*vlens);
+	if (!vlens)
+		return ERR_PTR(-ENOMEM);
+
+	v4l2_ctrl_handler_init(&vlens->hdl, 1);
+
+	v4l2_ctrl_new_std(&vlens->hdl, &vimc_lens_ctrl_ops,
+			  V4L2_CID_FOCUS_ABSOLUTE, 0,
+			  VIMC_LENS_MAX_FOCUS_POS, VIMC_LENS_MAX_FOCUS_STEP, 0);
+	vlens->sd.ctrl_handler = &vlens->hdl;
+	if (vlens->hdl.error) {
+		ret = vlens->hdl.error;
+		goto err_free_vlens;
+	}
+	vlens->ved.dev = vimc->mdev.dev;
+
+	ret = vimc_ent_sd_register(&vlens->ved, &vlens->sd, v4l2_dev,
+				   vcfg_name, MEDIA_ENT_F_LENS, 0,
+				   NULL, NULL, &vimc_lens_ops);
+	if (ret)
+		goto err_free_hdl;
+
+	return &vlens->ved;
+
+err_free_hdl:
+	v4l2_ctrl_handler_free(&vlens->hdl);
+err_free_vlens:
+	kfree(vlens);
+
+	return ERR_PTR(ret);
+}
+
+static void vimc_lens_release(struct vimc_ent_device *ved)
+{
+	struct vimc_lens_device *vlens =
+		container_of(ved, struct vimc_lens_device, ved);
+
+	v4l2_ctrl_handler_free(&vlens->hdl);
+	v4l2_subdev_cleanup(&vlens->sd);
+	media_entity_cleanup(vlens->ved.ent);
+	kfree(vlens);
+}
+
+const struct vimc_ent_type vimc_lens_type = {
+	.add = vimc_lens_add,
+	.release = vimc_lens_release
+};
diff --git a/drivers/media/test-drivers/vimc/vimc-scaler.c b/drivers/media/test-drivers/vimc/vimc-scaler.c
new file mode 100644
index 000000000..e2037c67e
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/vimc-scaler.c
@@ -0,0 +1,422 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * vimc-scaler.c Virtual Media Controller Driver
+ *
+ * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
+ */
+
+#include <linux/moduleparam.h>
+#include <linux/string.h>
+#include <linux/vmalloc.h>
+#include <linux/v4l2-mediabus.h>
+#include <media/v4l2-rect.h>
+#include <media/v4l2-subdev.h>
+
+#include "vimc-common.h"
+
+/* Pad identifier */
+enum vimc_scaler_pad {
+	VIMC_SCALER_SINK = 0,
+	VIMC_SCALER_SRC = 1,
+};
+
+#define VIMC_SCALER_FMT_WIDTH_DEFAULT  640
+#define VIMC_SCALER_FMT_HEIGHT_DEFAULT 480
+
+struct vimc_scaler_device {
+	struct vimc_ent_device ved;
+	struct v4l2_subdev sd;
+	struct media_pad pads[2];
+
+	u8 *src_frame;
+
+	/*
+	 * Virtual "hardware" configuration, filled when the stream starts or
+	 * when controls are set.
+	 */
+	struct {
+		struct v4l2_mbus_framefmt sink_fmt;
+		struct v4l2_mbus_framefmt src_fmt;
+		struct v4l2_rect sink_crop;
+		unsigned int bpp;
+	} hw;
+};
+
+static const struct v4l2_mbus_framefmt fmt_default = {
+	.width = VIMC_SCALER_FMT_WIDTH_DEFAULT,
+	.height = VIMC_SCALER_FMT_HEIGHT_DEFAULT,
+	.code = MEDIA_BUS_FMT_RGB888_1X24,
+	.field = V4L2_FIELD_NONE,
+	.colorspace = V4L2_COLORSPACE_SRGB,
+};
+
+static const struct v4l2_rect crop_rect_default = {
+	.width = VIMC_SCALER_FMT_WIDTH_DEFAULT,
+	.height = VIMC_SCALER_FMT_HEIGHT_DEFAULT,
+	.top = 0,
+	.left = 0,
+};
+
+static const struct v4l2_rect crop_rect_min = {
+	.width = VIMC_FRAME_MIN_WIDTH,
+	.height = VIMC_FRAME_MIN_HEIGHT,
+	.top = 0,
+	.left = 0,
+};
+
+static struct v4l2_rect
+vimc_scaler_get_crop_bound_sink(const struct v4l2_mbus_framefmt *sink_fmt)
+{
+	/* Get the crop bounds to clamp the crop rectangle correctly */
+	struct v4l2_rect r = {
+		.left = 0,
+		.top = 0,
+		.width = sink_fmt->width,
+		.height = sink_fmt->height,
+	};
+	return r;
+}
+
+static int vimc_scaler_init_state(struct v4l2_subdev *sd,
+				  struct v4l2_subdev_state *sd_state)
+{
+	struct v4l2_mbus_framefmt *mf;
+	struct v4l2_rect *r;
+	unsigned int i;
+
+	for (i = 0; i < sd->entity.num_pads; i++) {
+		mf = v4l2_subdev_state_get_format(sd_state, i);
+		*mf = fmt_default;
+	}
+
+	r = v4l2_subdev_state_get_crop(sd_state, VIMC_SCALER_SINK);
+	*r = crop_rect_default;
+
+	return 0;
+}
+
+static int vimc_scaler_enum_mbus_code(struct v4l2_subdev *sd,
+				   struct v4l2_subdev_state *sd_state,
+				   struct v4l2_subdev_mbus_code_enum *code)
+{
+	u32 mbus_code = vimc_mbus_code_by_index(code->index);
+	const struct vimc_pix_map *vpix;
+
+	if (!mbus_code)
+		return -EINVAL;
+
+	vpix = vimc_pix_map_by_code(mbus_code);
+
+	/* We don't support bayer format */
+	if (!vpix || vpix->bayer)
+		return -EINVAL;
+
+	code->code = mbus_code;
+
+	return 0;
+}
+
+static int vimc_scaler_enum_frame_size(struct v4l2_subdev *sd,
+				    struct v4l2_subdev_state *sd_state,
+				    struct v4l2_subdev_frame_size_enum *fse)
+{
+	const struct vimc_pix_map *vpix;
+
+	if (fse->index)
+		return -EINVAL;
+
+	/* Only accept code in the pix map table in non bayer format */
+	vpix = vimc_pix_map_by_code(fse->code);
+	if (!vpix || vpix->bayer)
+		return -EINVAL;
+
+	fse->min_width = VIMC_FRAME_MIN_WIDTH;
+	fse->min_height = VIMC_FRAME_MIN_HEIGHT;
+
+	fse->max_width = VIMC_FRAME_MAX_WIDTH;
+	fse->max_height = VIMC_FRAME_MAX_HEIGHT;
+
+	return 0;
+}
+
+static int vimc_scaler_set_fmt(struct v4l2_subdev *sd,
+			    struct v4l2_subdev_state *sd_state,
+			    struct v4l2_subdev_format *format)
+{
+	struct vimc_scaler_device *vscaler = v4l2_get_subdevdata(sd);
+	struct v4l2_mbus_framefmt *fmt;
+
+	/* Do not change the active format while stream is on */
+	if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE && vscaler->src_frame)
+		return -EBUSY;
+
+	fmt = v4l2_subdev_state_get_format(sd_state, format->pad);
+
+	/*
+	 * The media bus code and colorspace can only be changed on the sink
+	 * pad, the source pad only follows.
+	 */
+	if (format->pad == VIMC_SCALER_SINK) {
+		const struct vimc_pix_map *vpix;
+
+		/* Only accept code in the pix map table in non bayer format. */
+		vpix = vimc_pix_map_by_code(format->format.code);
+		if (vpix && !vpix->bayer)
+			fmt->code = format->format.code;
+		else
+			fmt->code = fmt_default.code;
+
+		/* Clamp the colorspace to valid values. */
+		fmt->colorspace = format->format.colorspace;
+		fmt->ycbcr_enc = format->format.ycbcr_enc;
+		fmt->quantization = format->format.quantization;
+		fmt->xfer_func = format->format.xfer_func;
+		vimc_colorimetry_clamp(fmt);
+	}
+
+	/* Clamp and align the width and height */
+	fmt->width = clamp_t(u32, format->format.width, VIMC_FRAME_MIN_WIDTH,
+			     VIMC_FRAME_MAX_WIDTH) & ~1;
+	fmt->height = clamp_t(u32, format->format.height, VIMC_FRAME_MIN_HEIGHT,
+			      VIMC_FRAME_MAX_HEIGHT) & ~1;
+
+	/*
+	 * Propagate the sink pad format to the crop rectangle and the source
+	 * pad.
+	 */
+	if (format->pad == VIMC_SCALER_SINK) {
+		struct v4l2_mbus_framefmt *src_fmt;
+		struct v4l2_rect *crop;
+
+		crop = v4l2_subdev_state_get_crop(sd_state, VIMC_SCALER_SINK);
+		crop->width = fmt->width;
+		crop->height = fmt->height;
+		crop->top = 0;
+		crop->left = 0;
+
+		src_fmt = v4l2_subdev_state_get_format(sd_state, VIMC_SCALER_SRC);
+		*src_fmt = *fmt;
+	}
+
+	format->format = *fmt;
+
+	return 0;
+}
+
+static int vimc_scaler_get_selection(struct v4l2_subdev *sd,
+				  struct v4l2_subdev_state *sd_state,
+				  struct v4l2_subdev_selection *sel)
+{
+	struct v4l2_mbus_framefmt *sink_fmt;
+
+	if (VIMC_IS_SRC(sel->pad))
+		return -EINVAL;
+
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP:
+		sel->r = *v4l2_subdev_state_get_crop(sd_state, VIMC_SCALER_SINK);
+		break;
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		sink_fmt = v4l2_subdev_state_get_format(sd_state, VIMC_SCALER_SINK);
+		sel->r = vimc_scaler_get_crop_bound_sink(sink_fmt);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void vimc_scaler_adjust_sink_crop(struct v4l2_rect *r,
+				      const struct v4l2_mbus_framefmt *sink_fmt)
+{
+	const struct v4l2_rect sink_rect =
+		vimc_scaler_get_crop_bound_sink(sink_fmt);
+
+	/* Disallow rectangles smaller than the minimal one. */
+	v4l2_rect_set_min_size(r, &crop_rect_min);
+	v4l2_rect_map_inside(r, &sink_rect);
+}
+
+static int vimc_scaler_set_selection(struct v4l2_subdev *sd,
+				  struct v4l2_subdev_state *sd_state,
+				  struct v4l2_subdev_selection *sel)
+{
+	struct vimc_scaler_device *vscaler = v4l2_get_subdevdata(sd);
+	struct v4l2_mbus_framefmt *sink_fmt;
+	struct v4l2_rect *crop_rect;
+
+	/* Only support setting the crop of the sink pad */
+	if (VIMC_IS_SRC(sel->pad) || sel->target != V4L2_SEL_TGT_CROP)
+		return -EINVAL;
+
+	if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE && vscaler->src_frame)
+		return -EBUSY;
+
+	crop_rect = v4l2_subdev_state_get_crop(sd_state, VIMC_SCALER_SINK);
+	sink_fmt = v4l2_subdev_state_get_format(sd_state, VIMC_SCALER_SINK);
+	vimc_scaler_adjust_sink_crop(&sel->r, sink_fmt);
+	*crop_rect = sel->r;
+
+	return 0;
+}
+
+static const struct v4l2_subdev_pad_ops vimc_scaler_pad_ops = {
+	.enum_mbus_code		= vimc_scaler_enum_mbus_code,
+	.enum_frame_size	= vimc_scaler_enum_frame_size,
+	.get_fmt		= v4l2_subdev_get_fmt,
+	.set_fmt		= vimc_scaler_set_fmt,
+	.get_selection		= vimc_scaler_get_selection,
+	.set_selection		= vimc_scaler_set_selection,
+};
+
+static int vimc_scaler_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct vimc_scaler_device *vscaler = v4l2_get_subdevdata(sd);
+
+	if (enable) {
+		struct v4l2_subdev_state *state;
+		const struct v4l2_mbus_framefmt *format;
+		const struct v4l2_rect *rect;
+		unsigned int frame_size;
+
+		if (vscaler->src_frame)
+			return 0;
+
+		state = v4l2_subdev_lock_and_get_active_state(sd);
+
+		/* Save the bytes per pixel of the sink. */
+		format = v4l2_subdev_state_get_format(state, VIMC_SCALER_SINK);
+		vscaler->hw.sink_fmt = *format;
+		vscaler->hw.bpp = vimc_pix_map_by_code(format->code)->bpp;
+
+		/* Calculate the frame size of the source pad. */
+		format = v4l2_subdev_state_get_format(state, VIMC_SCALER_SRC);
+		vscaler->hw.src_fmt = *format;
+		frame_size = format->width * format->height * vscaler->hw.bpp;
+
+		rect = v4l2_subdev_state_get_crop(state, VIMC_SCALER_SINK);
+		vscaler->hw.sink_crop = *rect;
+
+		v4l2_subdev_unlock_state(state);
+
+		/*
+		 * Allocate the frame buffer. Use vmalloc to be able to allocate
+		 * a large amount of memory.
+		 */
+		vscaler->src_frame = vmalloc(frame_size);
+		if (!vscaler->src_frame)
+			return -ENOMEM;
+	} else {
+		if (!vscaler->src_frame)
+			return 0;
+
+		vfree(vscaler->src_frame);
+		vscaler->src_frame = NULL;
+	}
+
+	return 0;
+}
+
+static const struct v4l2_subdev_video_ops vimc_scaler_video_ops = {
+	.s_stream = vimc_scaler_s_stream,
+};
+
+static const struct v4l2_subdev_ops vimc_scaler_ops = {
+	.pad = &vimc_scaler_pad_ops,
+	.video = &vimc_scaler_video_ops,
+};
+
+static const struct v4l2_subdev_internal_ops vimc_scaler_internal_ops = {
+	.init_state = vimc_scaler_init_state,
+};
+
+static void vimc_scaler_fill_src_frame(const struct vimc_scaler_device *const vscaler,
+				    const u8 *const sink_frame)
+{
+	const struct v4l2_mbus_framefmt *sink_fmt = &vscaler->hw.sink_fmt;
+	const struct v4l2_mbus_framefmt *src_fmt = &vscaler->hw.src_fmt;
+	const struct v4l2_rect *r = &vscaler->hw.sink_crop;
+	unsigned int src_x, src_y;
+	u8 *walker = vscaler->src_frame;
+
+	/* Set each pixel at the src_frame to its sink_frame equivalent */
+	for (src_y = 0; src_y < src_fmt->height; src_y++) {
+		unsigned int snk_y, y_offset;
+
+		snk_y = (src_y * r->height) / src_fmt->height + r->top;
+		y_offset = snk_y * sink_fmt->width * vscaler->hw.bpp;
+
+		for (src_x = 0; src_x < src_fmt->width; src_x++) {
+			unsigned int snk_x, x_offset, index;
+
+			snk_x = (src_x * r->width) / src_fmt->width + r->left;
+			x_offset = snk_x * vscaler->hw.bpp;
+			index = y_offset + x_offset;
+			memcpy(walker, &sink_frame[index], vscaler->hw.bpp);
+			walker += vscaler->hw.bpp;
+		}
+	}
+}
+
+static void *vimc_scaler_process_frame(struct vimc_ent_device *ved,
+				    const void *sink_frame)
+{
+	struct vimc_scaler_device *vscaler = container_of(ved, struct vimc_scaler_device,
+						    ved);
+
+	/* If the stream in this node is not active, just return */
+	if (!vscaler->src_frame)
+		return ERR_PTR(-EINVAL);
+
+	vimc_scaler_fill_src_frame(vscaler, sink_frame);
+
+	return vscaler->src_frame;
+};
+
+static void vimc_scaler_release(struct vimc_ent_device *ved)
+{
+	struct vimc_scaler_device *vscaler =
+		container_of(ved, struct vimc_scaler_device, ved);
+
+	v4l2_subdev_cleanup(&vscaler->sd);
+	media_entity_cleanup(vscaler->ved.ent);
+	kfree(vscaler);
+}
+
+static struct vimc_ent_device *vimc_scaler_add(struct vimc_device *vimc,
+					    const char *vcfg_name)
+{
+	struct v4l2_device *v4l2_dev = &vimc->v4l2_dev;
+	struct vimc_scaler_device *vscaler;
+	int ret;
+
+	/* Allocate the vscaler struct */
+	vscaler = kzalloc_obj(*vscaler);
+	if (!vscaler)
+		return ERR_PTR(-ENOMEM);
+
+	/* Initialize ved and sd */
+	vscaler->pads[VIMC_SCALER_SINK].flags = MEDIA_PAD_FL_SINK;
+	vscaler->pads[VIMC_SCALER_SRC].flags = MEDIA_PAD_FL_SOURCE;
+
+	ret = vimc_ent_sd_register(&vscaler->ved, &vscaler->sd, v4l2_dev,
+				   vcfg_name,
+				   MEDIA_ENT_F_PROC_VIDEO_SCALER, 2,
+				   vscaler->pads, &vimc_scaler_internal_ops,
+				   &vimc_scaler_ops);
+	if (ret) {
+		kfree(vscaler);
+		return ERR_PTR(ret);
+	}
+
+	vscaler->ved.process_frame = vimc_scaler_process_frame;
+	vscaler->ved.dev = vimc->mdev.dev;
+
+	return &vscaler->ved;
+}
+
+const struct vimc_ent_type vimc_scaler_type = {
+	.add = vimc_scaler_add,
+	.release = vimc_scaler_release
+};
diff --git a/drivers/media/test-drivers/vimc/vimc-sensor.c b/drivers/media/test-drivers/vimc/vimc-sensor.c
new file mode 100644
index 000000000..83dcc9d61
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/vimc-sensor.c
@@ -0,0 +1,509 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * vimc-sensor.c Virtual Media Controller Driver
+ *
+ * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
+ */
+
+#include <linux/v4l2-mediabus.h>
+#include <linux/vmalloc.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-subdev.h>
+#include <media/tpg/v4l2-tpg.h>
+
+#include "vimc-common.h"
+
+static const struct v4l2_mbus_framefmt fmt_default = {
+	.width = 640,
+	.height = 480,
+	.code = MEDIA_BUS_FMT_RGB888_1X24,
+	.field = V4L2_FIELD_NONE,
+	.colorspace = V4L2_COLORSPACE_SRGB,
+};
+
+static int vimc_sensor_init_state(struct v4l2_subdev *sd,
+				  struct v4l2_subdev_state *sd_state)
+{
+	struct vimc_sensor_device *vsensor =
+		container_of(sd, struct vimc_sensor_device, sd);
+
+	struct v4l2_mbus_framefmt *mf;
+
+	mf = v4l2_subdev_state_get_format(sd_state, 0);
+	*mf = fmt_default;
+	vsensor->hw.size.width = fmt_default.width;
+	vsensor->hw.size.height = fmt_default.height;
+
+	return 0;
+}
+
+static int vimc_sensor_enum_mbus_code(struct v4l2_subdev *sd,
+				      struct v4l2_subdev_state *sd_state,
+				      struct v4l2_subdev_mbus_code_enum *code)
+{
+	u32 mbus_code = vimc_mbus_code_by_index(code->index);
+
+	if (!mbus_code)
+		return -EINVAL;
+
+	code->code = mbus_code;
+
+	return 0;
+}
+
+static int vimc_sensor_enum_frame_size(struct v4l2_subdev *sd,
+				       struct v4l2_subdev_state *sd_state,
+				       struct v4l2_subdev_frame_size_enum *fse)
+{
+	const struct vimc_pix_map *vpix;
+
+	if (fse->index)
+		return -EINVAL;
+
+	/* Only accept code in the pix map table */
+	vpix = vimc_pix_map_by_code(fse->code);
+	if (!vpix)
+		return -EINVAL;
+
+	fse->min_width = VIMC_FRAME_MIN_WIDTH;
+	fse->max_width = VIMC_FRAME_MAX_WIDTH;
+	fse->min_height = VIMC_FRAME_MIN_HEIGHT;
+	fse->max_height = VIMC_FRAME_MAX_HEIGHT;
+
+	return 0;
+}
+
+static void vimc_sensor_tpg_s_format(struct vimc_sensor_device *vsensor,
+				     const struct v4l2_mbus_framefmt *format)
+{
+	const struct vimc_pix_map *vpix = vimc_pix_map_by_code(format->code);
+
+	tpg_reset_source(&vsensor->tpg, format->width, format->height,
+			 format->field);
+	tpg_s_bytesperline(&vsensor->tpg, 0, format->width * vpix->bpp);
+	tpg_s_buf_height(&vsensor->tpg, format->height);
+	tpg_s_fourcc(&vsensor->tpg, vpix->pixelformat);
+	/* TODO: add support for V4L2_FIELD_ALTERNATE */
+	tpg_s_field(&vsensor->tpg, format->field, false);
+	tpg_s_colorspace(&vsensor->tpg, format->colorspace);
+	tpg_s_ycbcr_enc(&vsensor->tpg, format->ycbcr_enc);
+	tpg_s_quantization(&vsensor->tpg, format->quantization);
+	tpg_s_xfer_func(&vsensor->tpg, format->xfer_func);
+}
+
+static void vimc_sensor_update_frame_timing(struct v4l2_subdev *sd,
+					    u32 width, u32 height)
+{
+	struct vimc_sensor_device *vsensor =
+		container_of(sd, struct vimc_sensor_device, sd);
+	u64 pixel_rate = vsensor->pixel_rate->val;
+	u32 hts = width + vsensor->hblank->val;
+	u32 vts = height + vsensor->vblank->val;
+	u64 total_pixels = (u64)hts * vts;
+	u64 frame_interval_ns;
+
+	/* Sanity check, pixel rate is fixed and fits in 32 bits. */
+	if (WARN_ON(pixel_rate >= 0x100000000))
+		return;
+
+	frame_interval_ns = total_pixels * NSEC_PER_SEC;
+	do_div(frame_interval_ns, (u32)pixel_rate);
+	vsensor->hw.fps_jiffies = nsecs_to_jiffies(frame_interval_ns);
+	if (vsensor->hw.fps_jiffies == 0)
+		vsensor->hw.fps_jiffies = 1;
+}
+
+static void vimc_sensor_adjust_fmt(struct v4l2_mbus_framefmt *fmt)
+{
+	const struct vimc_pix_map *vpix;
+
+	/* Only accept code in the pix map table */
+	vpix = vimc_pix_map_by_code(fmt->code);
+	if (!vpix)
+		fmt->code = fmt_default.code;
+
+	fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH,
+			     VIMC_FRAME_MAX_WIDTH) & ~1;
+	fmt->height = clamp_t(u32, fmt->height, VIMC_FRAME_MIN_HEIGHT,
+			      VIMC_FRAME_MAX_HEIGHT) & ~1;
+
+	/* TODO: add support for V4L2_FIELD_ALTERNATE */
+	if (fmt->field == V4L2_FIELD_ANY || fmt->field == V4L2_FIELD_ALTERNATE)
+		fmt->field = fmt_default.field;
+
+	vimc_colorimetry_clamp(fmt);
+}
+
+static u32 vimc_calc_vblank(u32 width, u32 height,
+			    s64 pixel_rate, s32 hblank)
+{
+	u32 hts = width + hblank;
+	u32 target_fps;
+	u64 vts;
+
+	target_fps = (width * height <= VIMC_PIXELS_THRESHOLD_30FPS) ? 30 : 10;
+
+	vts = (u64)pixel_rate;
+	do_div(vts, target_fps * hts);
+
+	if (vts > height)
+		return clamp((u32)(vts - height), VIMC_VBLANK_MIN, VIMC_VBLANK_MAX);
+
+	return VIMC_VBLANK_MIN;
+}
+
+static int vimc_sensor_set_fmt(struct v4l2_subdev *sd,
+			       struct v4l2_subdev_state *sd_state,
+			       struct v4l2_subdev_format *fmt)
+{
+	struct vimc_sensor_device *vsensor = v4l2_get_subdevdata(sd);
+	struct v4l2_mbus_framefmt *mf;
+
+	/* Do not change the format while stream is on */
+	if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE && vsensor->frame)
+		return -EBUSY;
+
+	mf = v4l2_subdev_state_get_format(sd_state, fmt->pad);
+
+	/* Set the new format */
+	vimc_sensor_adjust_fmt(&fmt->format);
+
+	dev_dbg(vsensor->ved.dev, "%s: format update: "
+		"old:%dx%d (0x%x, %d, %d, %d, %d) "
+		"new:%dx%d (0x%x, %d, %d, %d, %d)\n", vsensor->sd.name,
+		/* old */
+		mf->width, mf->height, mf->code,
+		mf->colorspace,	mf->quantization,
+		mf->xfer_func, mf->ycbcr_enc,
+		/* new */
+		fmt->format.width, fmt->format.height, fmt->format.code,
+		fmt->format.colorspace, fmt->format.quantization,
+		fmt->format.xfer_func, fmt->format.ycbcr_enc);
+
+	*mf = fmt->format;
+	if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+		u32 vblank_def = vimc_calc_vblank(fmt->format.width,
+						  fmt->format.height,
+						  vsensor->pixel_rate->val,
+						  vsensor->hblank->val);
+		vsensor->hw.size.width = fmt->format.width;
+		vsensor->hw.size.height = fmt->format.height;
+		__v4l2_ctrl_modify_range(vsensor->vblank,
+					 VIMC_VBLANK_MIN,
+					 VIMC_VBLANK_MAX,
+					 VIMC_VBLANK_STEP,
+					 vblank_def);
+		__v4l2_ctrl_s_ctrl(vsensor->vblank, vblank_def);
+	}
+
+	return 0;
+}
+
+static const struct v4l2_subdev_pad_ops vimc_sensor_pad_ops = {
+	.enum_mbus_code		= vimc_sensor_enum_mbus_code,
+	.enum_frame_size	= vimc_sensor_enum_frame_size,
+	.get_fmt		= v4l2_subdev_get_fmt,
+	.set_fmt		= vimc_sensor_set_fmt,
+};
+
+static void *vimc_sensor_process_frame(struct vimc_ent_device *ved,
+				       const void *sink_frame)
+{
+	struct vimc_sensor_device *vsensor =
+		container_of(ved, struct vimc_sensor_device, ved);
+
+	const unsigned int line_height = 16;
+	u8 *basep[TPG_MAX_PLANES][2];
+	unsigned int line = 1;
+	char str[100];
+
+	tpg_fill_plane_buffer(&vsensor->tpg, 0, 0, vsensor->frame);
+	tpg_calc_text_basep(&vsensor->tpg, basep, 0, vsensor->frame);
+	switch (vsensor->hw.osd_value) {
+	case VIMC_SENSOR_OSD_SHOW_ALL: {
+		const char *order = tpg_g_color_order(&vsensor->tpg);
+
+		tpg_gen_text(&vsensor->tpg, basep, line++ * line_height,
+			     16, order);
+		snprintf(str, sizeof(str),
+			 "brightness %3d, contrast %3d, saturation %3d, hue %d ",
+			 vsensor->tpg.brightness,
+			 vsensor->tpg.contrast,
+			 vsensor->tpg.saturation,
+			 vsensor->tpg.hue);
+		tpg_gen_text(&vsensor->tpg, basep, line++ * line_height, 16, str);
+		snprintf(str, sizeof(str), "sensor size: %dx%d",
+			 vsensor->hw.size.width, vsensor->hw.size.height);
+		tpg_gen_text(&vsensor->tpg, basep, line++ * line_height, 16, str);
+		fallthrough;
+	}
+	case VIMC_SENSOR_OSD_SHOW_COUNTERS: {
+		unsigned int ms;
+
+		ms = div_u64(ktime_get_ns() - vsensor->hw.start_stream_ts, 1000000);
+		snprintf(str, sizeof(str), "%02d:%02d:%02d:%03d",
+			 (ms / (60 * 60 * 1000)) % 24,
+			 (ms / (60 * 1000)) % 60,
+			 (ms / 1000) % 60,
+			 ms % 1000);
+		tpg_gen_text(&vsensor->tpg, basep, line++ * line_height, 16, str);
+		break;
+	}
+	case VIMC_SENSOR_OSD_SHOW_NONE:
+	default:
+		break;
+	}
+
+	return vsensor->frame;
+}
+
+static int vimc_sensor_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct vimc_sensor_device *vsensor =
+				container_of(sd, struct vimc_sensor_device, sd);
+
+	if (enable) {
+		const struct v4l2_mbus_framefmt *format;
+		struct v4l2_subdev_state *state;
+		const struct vimc_pix_map *vpix;
+		unsigned int frame_size;
+
+		state = v4l2_subdev_lock_and_get_active_state(sd);
+		format = v4l2_subdev_state_get_format(state, 0);
+
+		/* Configure the test pattern generator. */
+		vimc_sensor_tpg_s_format(vsensor, format);
+
+		/* Calculate the frame size. */
+		vpix = vimc_pix_map_by_code(format->code);
+		frame_size = format->width * vpix->bpp * format->height;
+
+		vsensor->hw.size.width = format->width;
+		vsensor->hw.size.height = format->height;
+		vimc_sensor_update_frame_timing(sd, format->width,
+						format->height);
+
+		v4l2_subdev_unlock_state(state);
+
+		/*
+		 * Allocate the frame buffer. Use vmalloc to be able to
+		 * allocate a large amount of memory
+		 */
+		vsensor->frame = vmalloc(frame_size);
+		if (!vsensor->frame)
+			return -ENOMEM;
+
+		vsensor->hw.start_stream_ts = ktime_get_ns();
+	} else {
+
+		vfree(vsensor->frame);
+		vsensor->frame = NULL;
+	}
+
+	return 0;
+}
+
+static const struct v4l2_subdev_core_ops vimc_sensor_core_ops = {
+	.log_status = v4l2_ctrl_subdev_log_status,
+	.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
+static const struct v4l2_subdev_video_ops vimc_sensor_video_ops = {
+	.s_stream = vimc_sensor_s_stream,
+};
+
+static const struct v4l2_subdev_ops vimc_sensor_ops = {
+	.core = &vimc_sensor_core_ops,
+	.pad = &vimc_sensor_pad_ops,
+	.video = &vimc_sensor_video_ops,
+};
+
+static const struct v4l2_subdev_internal_ops vimc_sensor_internal_ops = {
+	.init_state = vimc_sensor_init_state,
+};
+
+static int vimc_sensor_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vimc_sensor_device *vsensor =
+		container_of(ctrl->handler, struct vimc_sensor_device, hdl);
+
+	switch (ctrl->id) {
+	case VIMC_CID_TEST_PATTERN:
+		tpg_s_pattern(&vsensor->tpg, ctrl->val);
+		break;
+	case V4L2_CID_HFLIP:
+		tpg_s_hflip(&vsensor->tpg, ctrl->val);
+		break;
+	case V4L2_CID_VFLIP:
+		tpg_s_vflip(&vsensor->tpg, ctrl->val);
+		break;
+	case V4L2_CID_BRIGHTNESS:
+		tpg_s_brightness(&vsensor->tpg, ctrl->val);
+		break;
+	case V4L2_CID_CONTRAST:
+		tpg_s_contrast(&vsensor->tpg, ctrl->val);
+		break;
+	case V4L2_CID_HUE:
+		tpg_s_hue(&vsensor->tpg, ctrl->val);
+		break;
+	case V4L2_CID_SATURATION:
+		tpg_s_saturation(&vsensor->tpg, ctrl->val);
+		break;
+	case VIMC_CID_OSD_TEXT_MODE:
+		vsensor->hw.osd_value = ctrl->val;
+		break;
+	case V4L2_CID_PIXEL_RATE:
+		break;
+	case V4L2_CID_HBLANK:
+		break;
+	case V4L2_CID_VBLANK:
+		vimc_sensor_update_frame_timing(&vsensor->sd,
+						vsensor->hw.size.width,
+						vsensor->hw.size.height);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vimc_sensor_ctrl_ops = {
+	.s_ctrl = vimc_sensor_s_ctrl,
+};
+
+static void vimc_sensor_release(struct vimc_ent_device *ved)
+{
+	struct vimc_sensor_device *vsensor =
+		container_of(ved, struct vimc_sensor_device, ved);
+
+	v4l2_ctrl_handler_free(&vsensor->hdl);
+	tpg_free(&vsensor->tpg);
+	v4l2_subdev_cleanup(&vsensor->sd);
+	media_entity_cleanup(vsensor->ved.ent);
+	kfree(vsensor);
+}
+
+/* Image Processing Controls */
+static const struct v4l2_ctrl_config vimc_sensor_ctrl_class = {
+	.flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY,
+	.id = VIMC_CID_VIMC_CLASS,
+	.name = "VIMC Controls",
+	.type = V4L2_CTRL_TYPE_CTRL_CLASS,
+};
+
+static const struct v4l2_ctrl_config vimc_sensor_ctrl_test_pattern = {
+	.ops = &vimc_sensor_ctrl_ops,
+	.id = VIMC_CID_TEST_PATTERN,
+	.name = "Test Pattern",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = TPG_PAT_NOISE,
+	.qmenu = tpg_pattern_strings,
+};
+
+static const char * const vimc_ctrl_osd_mode_strings[] = {
+	"All",
+	"Counters Only",
+	"None",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vimc_sensor_ctrl_osd_mode = {
+	.ops = &vimc_sensor_ctrl_ops,
+	.id = VIMC_CID_OSD_TEXT_MODE,
+	.name = "Show Information",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = ARRAY_SIZE(vimc_ctrl_osd_mode_strings) - 2,
+	.qmenu = vimc_ctrl_osd_mode_strings,
+};
+
+static struct vimc_ent_device *vimc_sensor_add(struct vimc_device *vimc,
+					       const char *vcfg_name)
+{
+	struct v4l2_device *v4l2_dev = &vimc->v4l2_dev;
+	struct vimc_sensor_device *vsensor;
+	int ret;
+
+	/* Allocate the vsensor struct */
+	vsensor = kzalloc_obj(*vsensor);
+	if (!vsensor)
+		return ERR_PTR(-ENOMEM);
+
+	v4l2_ctrl_handler_init(&vsensor->hdl, 4);
+
+	v4l2_ctrl_new_custom(&vsensor->hdl, &vimc_sensor_ctrl_class, NULL);
+	v4l2_ctrl_new_custom(&vsensor->hdl, &vimc_sensor_ctrl_test_pattern, NULL);
+	v4l2_ctrl_new_custom(&vsensor->hdl, &vimc_sensor_ctrl_osd_mode, NULL);
+	v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops,
+			  V4L2_CID_VFLIP, 0, 1, 1, 0);
+	v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops,
+			  V4L2_CID_HFLIP, 0, 1, 1, 0);
+	v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops,
+			  V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
+	v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops,
+			  V4L2_CID_CONTRAST, 0, 255, 1, 128);
+	v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops,
+			  V4L2_CID_HUE, -128, 127, 1, 0);
+	v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops,
+			  V4L2_CID_SATURATION, 0, 255, 1, 128);
+	/* Timing controls for frame interval configuration */
+	vsensor->pixel_rate = v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops,
+						V4L2_CID_PIXEL_RATE,
+						VIMC_PIXEL_RATE_FIXED, VIMC_PIXEL_RATE_FIXED,
+						1, VIMC_PIXEL_RATE_FIXED);
+	if (vsensor->pixel_rate)
+		vsensor->pixel_rate->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+	vsensor->hblank = v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops,
+					    V4L2_CID_HBLANK,
+					    VIMC_HBLANK_FIXED, VIMC_HBLANK_FIXED,
+					    1, VIMC_HBLANK_FIXED);
+	if (vsensor->hblank)
+		vsensor->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+	vsensor->vblank = v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops,
+					    V4L2_CID_VBLANK,
+					    VIMC_VBLANK_MIN, VIMC_VBLANK_MAX,
+					    VIMC_VBLANK_STEP, VIMC_VBLANK_DEFAULT);
+
+	vsensor->sd.ctrl_handler = &vsensor->hdl;
+	if (vsensor->hdl.error) {
+		ret = vsensor->hdl.error;
+		goto err_free_vsensor;
+	}
+
+	/* Initialize the test pattern generator */
+	tpg_init(&vsensor->tpg, fmt_default.width, fmt_default.height);
+	ret = tpg_alloc(&vsensor->tpg, VIMC_FRAME_MAX_WIDTH);
+	if (ret)
+		goto err_free_hdl;
+
+	/* Initialize ved and sd */
+	vsensor->pad.flags = MEDIA_PAD_FL_SOURCE;
+	ret = vimc_ent_sd_register(&vsensor->ved, &vsensor->sd, v4l2_dev,
+				   vcfg_name,
+				   MEDIA_ENT_F_CAM_SENSOR, 1, &vsensor->pad,
+				   &vimc_sensor_internal_ops, &vimc_sensor_ops);
+	if (ret)
+		goto err_free_tpg;
+
+	vsensor->ved.process_frame = vimc_sensor_process_frame;
+	vsensor->ved.dev = vimc->mdev.dev;
+
+	return &vsensor->ved;
+
+err_free_tpg:
+	tpg_free(&vsensor->tpg);
+err_free_hdl:
+	v4l2_ctrl_handler_free(&vsensor->hdl);
+err_free_vsensor:
+	kfree(vsensor);
+
+	return ERR_PTR(ret);
+}
+
+const struct vimc_ent_type vimc_sensor_type = {
+	.add = vimc_sensor_add,
+	.release = vimc_sensor_release
+};
diff --git a/drivers/media/test-drivers/vimc/vimc-streamer.c b/drivers/media/test-drivers/vimc/vimc-streamer.c
new file mode 100644
index 000000000..3ebf5798f
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/vimc-streamer.c
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * vimc-streamer.c Virtual Media Controller Driver
+ *
+ * Copyright (C) 2018 Lucas A. M. Magalhães <lucmaga@gmail.com>
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/freezer.h>
+#include <linux/kthread.h>
+
+#include "vimc-streamer.h"
+
+/**
+ * vimc_get_source_entity - get the entity connected with the first sink pad
+ *
+ * @ent:	reference media_entity
+ *
+ * Helper function that returns the media entity containing the source pad
+ * linked with the first sink pad from the given media entity pad list.
+ *
+ * Return: The source pad or NULL, if it wasn't found.
+ */
+static struct media_entity *vimc_get_source_entity(struct media_entity *ent)
+{
+	struct media_pad *pad;
+	int i;
+
+	for (i = 0; i < ent->num_pads; i++) {
+		if (ent->pads[i].flags & MEDIA_PAD_FL_SOURCE)
+			continue;
+		pad = media_pad_remote_pad_first(&ent->pads[i]);
+		return pad ? pad->entity : NULL;
+	}
+	return NULL;
+}
+
+/**
+ * vimc_streamer_pipeline_terminate - Disable stream in all ved in stream
+ *
+ * @stream: the pointer to the stream structure with the pipeline to be
+ *	    disabled.
+ *
+ * Calls s_stream to disable the stream in each entity of the pipeline
+ *
+ */
+static void vimc_streamer_pipeline_terminate(struct vimc_stream *stream)
+{
+	struct vimc_ent_device *ved;
+	struct v4l2_subdev *sd;
+
+	while (stream->pipe_size) {
+		stream->pipe_size--;
+		ved = stream->ved_pipeline[stream->pipe_size];
+		stream->ved_pipeline[stream->pipe_size] = NULL;
+
+		if (!is_media_entity_v4l2_subdev(ved->ent))
+			continue;
+
+		sd = media_entity_to_v4l2_subdev(ved->ent);
+		/*
+		 * Do not call .s_stream() to stop an already
+		 * stopped/unstarted subdev.
+		 */
+		if (!v4l2_subdev_is_streaming(sd))
+			continue;
+		v4l2_subdev_call(sd, video, s_stream, 0);
+	}
+}
+
+/**
+ * vimc_streamer_pipeline_init - Initializes the stream structure
+ *
+ * @stream: the pointer to the stream structure to be initialized
+ * @ved:    the pointer to the vimc entity initializing the stream
+ *
+ * Initializes the stream structure. Walks through the entity graph to
+ * construct the pipeline used later on the streamer thread.
+ * Calls vimc_streamer_s_stream() to enable stream in all entities of
+ * the pipeline.
+ *
+ * Return: 0 if success, error code otherwise.
+ */
+static int vimc_streamer_pipeline_init(struct vimc_stream *stream,
+				       struct vimc_ent_device *ved)
+{
+	struct media_entity *entity;
+	struct video_device *vdev;
+	struct v4l2_subdev *sd;
+	int ret = 0;
+
+	stream->pipe_size = 0;
+	while (stream->pipe_size < VIMC_STREAMER_PIPELINE_MAX_SIZE) {
+		if (!ved) {
+			vimc_streamer_pipeline_terminate(stream);
+			return -EINVAL;
+		}
+		stream->ved_pipeline[stream->pipe_size++] = ved;
+
+		if (is_media_entity_v4l2_subdev(ved->ent)) {
+			sd = media_entity_to_v4l2_subdev(ved->ent);
+			ret = v4l2_subdev_call(sd, video, s_stream, 1);
+			if (ret && ret != -ENOIOCTLCMD) {
+				dev_err(ved->dev, "subdev_call error %s\n",
+					ved->ent->name);
+				vimc_streamer_pipeline_terminate(stream);
+				return ret;
+			}
+		}
+
+		entity = vimc_get_source_entity(ved->ent);
+		/* Check if the end of the pipeline was reached */
+		if (!entity) {
+			/* the first entity of the pipe should be source only */
+			if (!vimc_is_source(ved->ent)) {
+				dev_err(ved->dev,
+					"first entity in the pipe '%s' is not a source\n",
+					ved->ent->name);
+				vimc_streamer_pipeline_terminate(stream);
+				return -EPIPE;
+			}
+			return 0;
+		}
+
+		/* Get the next device in the pipeline */
+		if (is_media_entity_v4l2_subdev(entity)) {
+			sd = media_entity_to_v4l2_subdev(entity);
+			ved = v4l2_get_subdevdata(sd);
+		} else {
+			vdev = container_of(entity,
+					    struct video_device,
+					    entity);
+			ved = video_get_drvdata(vdev);
+		}
+	}
+
+	vimc_streamer_pipeline_terminate(stream);
+	return -EINVAL;
+}
+
+/**
+ * vimc_streamer_get_sensor() - Get sensor from pipeline
+ * @stream: the pipeline
+ *
+ * Helper function to find the sensor device in the pipeline.
+ * Returns pointer to sensor device or NULL if not found.
+ */
+static struct vimc_sensor_device *vimc_streamer_get_sensor(struct vimc_stream *stream)
+{
+	int i;
+
+	for (i = 0; i < stream->pipe_size; i++) {
+		struct vimc_ent_device *ved = stream->ved_pipeline[i];
+
+		if (ved && ved->ent &&
+		    ved->ent->function == MEDIA_ENT_F_CAM_SENSOR) {
+			return container_of(ved, struct vimc_sensor_device, ved);
+		}
+	}
+
+	return NULL;
+}
+
+/**
+ * vimc_streamer_thread - Process frames through the pipeline
+ *
+ * @data:	vimc_stream struct of the current stream
+ *
+ * From the source to the sink, gets a frame from each subdevice and send to
+ * the next one of the pipeline at a fixed framerate.
+ *
+ * Return:
+ * Always zero (created as ``int`` instead of ``void`` to comply with
+ * kthread API).
+ */
+static int vimc_streamer_thread(void *data)
+{
+	struct vimc_stream *stream = data;
+	struct vimc_sensor_device *vsensor;
+	u8 *frame = NULL;
+	int i;
+	unsigned long fps_jiffies;
+	const unsigned long default_jiffies = HZ / 30;
+
+	set_freezable();
+	vsensor = vimc_streamer_get_sensor(stream);
+
+	for (;;) {
+		try_to_freeze();
+		if (kthread_should_stop())
+			break;
+
+		/* Read from hardware configuration */
+		fps_jiffies = vsensor ? vsensor->hw.fps_jiffies : default_jiffies;
+
+		for (i = stream->pipe_size - 1; i >= 0; i--) {
+			frame = stream->ved_pipeline[i]->process_frame(
+					stream->ved_pipeline[i], frame);
+			if (!frame || IS_ERR(frame))
+				break;
+		}
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(fps_jiffies);
+	}
+
+	return 0;
+}
+
+/**
+ * vimc_streamer_s_stream - Start/stop the streaming on the media pipeline
+ *
+ * @stream:	the pointer to the stream structure of the current stream
+ * @ved:	pointer to the vimc entity of the entity of the stream
+ * @enable:	flag to determine if stream should start/stop
+ *
+ * When starting, check if there is no ``stream->kthread`` allocated. This
+ * should indicate that a stream is already running. Then, it initializes the
+ * pipeline, creates and runs a kthread to consume buffers through the pipeline.
+ * When stopping, analogously check if there is a stream running, stop the
+ * thread and terminates the pipeline.
+ *
+ * Return: 0 if success, error code otherwise.
+ */
+int vimc_streamer_s_stream(struct vimc_stream *stream,
+			   struct vimc_ent_device *ved,
+			   int enable)
+{
+	int ret;
+
+	if (!stream || !ved)
+		return -EINVAL;
+
+	if (enable) {
+		if (stream->kthread)
+			return 0;
+
+		ret = vimc_streamer_pipeline_init(stream, ved);
+		if (ret)
+			return ret;
+
+		stream->kthread = kthread_run(vimc_streamer_thread, stream,
+					      "vimc-streamer thread");
+
+		if (IS_ERR(stream->kthread)) {
+			ret = PTR_ERR(stream->kthread);
+			dev_err(ved->dev, "kthread_run failed with %d\n", ret);
+			vimc_streamer_pipeline_terminate(stream);
+			stream->kthread = NULL;
+			return ret;
+		}
+
+	} else {
+		if (!stream->kthread)
+			return 0;
+
+		ret = kthread_stop(stream->kthread);
+		/*
+		 * kthread_stop returns -EINTR in cases when streamon was
+		 * immediately followed by streamoff, and the thread didn't had
+		 * a chance to run. Ignore errors to stop the stream in the
+		 * pipeline.
+		 */
+		if (ret)
+			dev_dbg(ved->dev, "kthread_stop returned '%d'\n", ret);
+
+		stream->kthread = NULL;
+
+		vimc_streamer_pipeline_terminate(stream);
+	}
+
+	return 0;
+}
diff --git a/drivers/media/test-drivers/vimc/vimc-streamer.h b/drivers/media/test-drivers/vimc/vimc-streamer.h
new file mode 100644
index 000000000..3bb6731b8
--- /dev/null
+++ b/drivers/media/test-drivers/vimc/vimc-streamer.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * vimc-streamer.h Virtual Media Controller Driver
+ *
+ * Copyright (C) 2018 Lucas A. M. Magalhães <lucmaga@gmail.com>
+ *
+ */
+
+#ifndef _VIMC_STREAMER_H_
+#define _VIMC_STREAMER_H_
+
+#include <media/media-device.h>
+
+#include "vimc-common.h"
+
+#define VIMC_STREAMER_PIPELINE_MAX_SIZE 16
+
+/**
+ * struct vimc_stream - struct that represents a stream in the pipeline
+ *
+ * @pipe:		the media pipeline object associated with this stream
+ * @ved_pipeline:	array containing all the entities participating in the
+ * 			stream. The order is from a video device (usually a
+ *			capture device) where stream_on was called, to the
+ *			entity generating the first base image to be
+ *			processed in the pipeline.
+ * @pipe_size:		size of @ved_pipeline
+ * @kthread:		thread that generates the frames of the stream.
+ *
+ * When the user call stream_on in a video device, struct vimc_stream is
+ * used to keep track of all entities and subdevices that generates and
+ * process frames for the stream.
+ */
+struct vimc_stream {
+	struct media_pipeline pipe;
+	struct vimc_ent_device *ved_pipeline[VIMC_STREAMER_PIPELINE_MAX_SIZE];
+	unsigned int pipe_size;
+	struct task_struct *kthread;
+};
+
+int vimc_streamer_s_stream(struct vimc_stream *stream,
+			   struct vimc_ent_device *ved,
+			   int enable);
+
+#endif  //_VIMC_STREAMER_H_
diff --git a/drivers/media/test-drivers/visl/Kconfig b/drivers/media/test-drivers/visl/Kconfig
new file mode 100644
index 000000000..37be9f267
--- /dev/null
+++ b/drivers/media/test-drivers/visl/Kconfig
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0+
+config VIDEO_VISL
+	tristate "Virtual Stateless Decoder Driver (visl)"
+	depends on VIDEO_DEV
+	select FONT_SUPPORT
+	select FONT_8x16
+	select VIDEOBUF2_VMALLOC
+	select V4L2_MEM2MEM_DEV
+	select MEDIA_CONTROLLER
+	select VIDEO_V4L2_TPG
+	help
+
+	  A virtual stateless decoder device for uAPI development purposes.
+
+	  A userspace implementation can use visl to run a decoding loop even
+	  when no hardware is available or when the kernel uAPI for the codec
+	  has not been upstreamed yet. This can reveal bugs at an early stage.
+
+	  When in doubt, say N.
+
+config VISL_DEBUGFS
+	bool "Enable debugfs for visl"
+	depends on VIDEO_VISL
+	depends on DEBUG_FS
+
+	help
+	  Choose Y to dump the bitstream buffers through debugfs.
+	  When in doubt, say N.
diff --git a/drivers/media/test-drivers/visl/Makefile b/drivers/media/test-drivers/visl/Makefile
new file mode 100644
index 000000000..fb4d5ae1b
--- /dev/null
+++ b/drivers/media/test-drivers/visl/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0+
+visl-y := visl-core.o visl-video.o visl-dec.o visl-trace-points.o
+
+ifeq ($(CONFIG_VISL_DEBUGFS),y)
+  visl-y += visl-debugfs.o
+endif
+
+obj-$(CONFIG_VIDEO_VISL) += visl.o
diff --git a/drivers/media/test-drivers/visl/visl-core.c b/drivers/media/test-drivers/visl/visl-core.c
new file mode 100644
index 000000000..5e9bdd425
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-core.c
@@ -0,0 +1,580 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A virtual stateless decoder device for stateless uAPI development purposes.
+ *
+ * This tool's objective is to help the development and testing of userspace
+ * applications that use the V4L2 stateless API to decode media.
+ *
+ * A userspace implementation can use visl to run a decoding loop even when no
+ * hardware is available or when the kernel uAPI for the codec has not been
+ * upstreamed yet. This can reveal bugs at an early stage.
+ *
+ * This driver can also trace the contents of the V4L2 controls submitted to it.
+ * It can also dump the contents of the vb2 buffers through a debugfs
+ * interface. This is in many ways similar to the tracing infrastructure
+ * available for other popular encode/decode APIs out there and can help develop
+ * a userspace application by using another (working) one as a reference.
+ *
+ * Note that no actual decoding of video frames is performed by visl. The V4L2
+ * test pattern generator is used to write various debug information to the
+ * capture buffers instead.
+ *
+ * Copyright (C) 2022 Collabora, Ltd.
+ *
+ * Based on the vim2m driver, that is:
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ * Pawel Osciak, <pawel@osciak.com>
+ * Marek Szyprowski, <m.szyprowski@samsung.com>
+ *
+ * Based on the vicodec driver, that is:
+ *
+ * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ *
+ * Based on the Cedrus VPU driver, that is:
+ *
+ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
+ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+ * Copyright (C) 2018 Bootlin
+ */
+
+#include <linux/debugfs.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+
+#include "visl.h"
+#include "visl-dec.h"
+#include "visl-debugfs.h"
+#include "visl-video.h"
+
+unsigned int visl_debug;
+module_param(visl_debug, uint, 0644);
+MODULE_PARM_DESC(visl_debug, " activates debug info");
+
+unsigned int visl_transtime_ms;
+module_param(visl_transtime_ms, uint, 0644);
+MODULE_PARM_DESC(visl_transtime_ms, " simulated process time in milliseconds.");
+
+/*
+ * dprintk can be slow through serial. This lets one limit the tracing to a
+ * particular number of frames
+ */
+int visl_dprintk_frame_start = -1;
+module_param(visl_dprintk_frame_start, int, 0444);
+MODULE_PARM_DESC(visl_dprintk_frame_start,
+		 " a frame number to start tracing with dprintk");
+
+unsigned int visl_dprintk_nframes;
+module_param(visl_dprintk_nframes, uint, 0444);
+MODULE_PARM_DESC(visl_dprintk_nframes,
+		 " the number of frames to trace with dprintk");
+
+bool keep_bitstream_buffers;
+module_param(keep_bitstream_buffers, bool, 0444);
+MODULE_PARM_DESC(keep_bitstream_buffers,
+		 " keep bitstream buffers in debugfs after streaming is stopped");
+
+int bitstream_trace_frame_start = -1;
+module_param(bitstream_trace_frame_start, int, 0444);
+MODULE_PARM_DESC(bitstream_trace_frame_start,
+		 " a frame number to start dumping the bitstream through debugfs");
+
+unsigned int bitstream_trace_nframes;
+module_param(bitstream_trace_nframes, uint, 0444);
+MODULE_PARM_DESC(bitstream_trace_nframes,
+		 " the number of frames to dump the bitstream through debugfs");
+
+bool tpg_verbose;
+module_param(tpg_verbose, bool, 0644);
+MODULE_PARM_DESC(tpg_verbose,
+		 " add more verbose information on the generated output frames");
+
+static const struct visl_ctrl_desc visl_fwht_ctrl_descs[] = {
+	{
+		.cfg.id = V4L2_CID_STATELESS_FWHT_PARAMS,
+	},
+};
+
+const struct visl_ctrls visl_fwht_ctrls = {
+	.ctrls = visl_fwht_ctrl_descs,
+	.num_ctrls = ARRAY_SIZE(visl_fwht_ctrl_descs)
+};
+
+static const struct visl_ctrl_desc visl_mpeg2_ctrl_descs[] = {
+	{
+		.cfg.id = V4L2_CID_STATELESS_MPEG2_SEQUENCE,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_MPEG2_PICTURE,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_MPEG2_QUANTISATION,
+	},
+};
+
+const struct visl_ctrls visl_mpeg2_ctrls = {
+	.ctrls = visl_mpeg2_ctrl_descs,
+	.num_ctrls = ARRAY_SIZE(visl_mpeg2_ctrl_descs),
+};
+
+static const struct visl_ctrl_desc visl_vp8_ctrl_descs[] = {
+	{
+		.cfg.id = V4L2_CID_STATELESS_VP8_FRAME,
+	},
+};
+
+const struct visl_ctrls visl_vp8_ctrls = {
+	.ctrls = visl_vp8_ctrl_descs,
+	.num_ctrls = ARRAY_SIZE(visl_vp8_ctrl_descs),
+};
+
+static const struct visl_ctrl_desc visl_vp9_ctrl_descs[] = {
+	{
+		.cfg.id = V4L2_CID_STATELESS_VP9_FRAME,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_VP9_COMPRESSED_HDR,
+	},
+};
+
+const struct visl_ctrls visl_vp9_ctrls = {
+	.ctrls = visl_vp9_ctrl_descs,
+	.num_ctrls = ARRAY_SIZE(visl_vp9_ctrl_descs),
+};
+
+static const struct visl_ctrl_desc visl_h264_ctrl_descs[] = {
+	{
+		.cfg.id = V4L2_CID_STATELESS_H264_DECODE_PARAMS,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_H264_SPS,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_H264_PPS,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_H264_SCALING_MATRIX,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_H264_DECODE_MODE,
+		.cfg.min = V4L2_STATELESS_H264_DECODE_MODE_SLICE_BASED,
+		.cfg.max = V4L2_STATELESS_H264_DECODE_MODE_FRAME_BASED,
+		.cfg.def = V4L2_STATELESS_H264_DECODE_MODE_SLICE_BASED,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_H264_START_CODE,
+		.cfg.min = V4L2_STATELESS_H264_START_CODE_NONE,
+		.cfg.max = V4L2_STATELESS_H264_START_CODE_ANNEX_B,
+		.cfg.def = V4L2_STATELESS_H264_START_CODE_NONE,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_H264_SLICE_PARAMS,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_H264_PRED_WEIGHTS,
+	},
+};
+
+const struct visl_ctrls visl_h264_ctrls = {
+	.ctrls = visl_h264_ctrl_descs,
+	.num_ctrls = ARRAY_SIZE(visl_h264_ctrl_descs),
+};
+
+static const struct visl_ctrl_desc visl_hevc_ctrl_descs[] = {
+	{
+		.cfg.id = V4L2_CID_STATELESS_HEVC_SPS,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_HEVC_PPS,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_HEVC_SLICE_PARAMS,
+		/* The absolute maximum for level > 6 */
+		.cfg.dims = { 600 },
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_HEVC_SCALING_MATRIX,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_HEVC_DECODE_PARAMS,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_HEVC_DECODE_MODE,
+		.cfg.min = V4L2_STATELESS_HEVC_DECODE_MODE_SLICE_BASED,
+		.cfg.max = V4L2_STATELESS_HEVC_DECODE_MODE_FRAME_BASED,
+		.cfg.def = V4L2_STATELESS_HEVC_DECODE_MODE_SLICE_BASED,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_HEVC_START_CODE,
+		.cfg.min = V4L2_STATELESS_HEVC_START_CODE_NONE,
+		.cfg.max = V4L2_STATELESS_HEVC_START_CODE_ANNEX_B,
+		.cfg.def = V4L2_STATELESS_HEVC_START_CODE_NONE,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS,
+		.cfg.dims = { 256 },
+		.cfg.max = 0xffffffff,
+		.cfg.step = 1,
+	},
+
+};
+
+const struct visl_ctrls visl_hevc_ctrls = {
+	.ctrls = visl_hevc_ctrl_descs,
+	.num_ctrls = ARRAY_SIZE(visl_hevc_ctrl_descs),
+};
+
+static const struct visl_ctrl_desc visl_av1_ctrl_descs[] = {
+	{
+		.cfg.id = V4L2_CID_STATELESS_AV1_FRAME,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_AV1_TILE_GROUP_ENTRY,
+		.cfg.dims = { V4L2_AV1_MAX_TILE_COUNT },
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_AV1_SEQUENCE,
+	},
+	{
+		.cfg.id = V4L2_CID_STATELESS_AV1_FILM_GRAIN,
+	},
+};
+
+const struct visl_ctrls visl_av1_ctrls = {
+	.ctrls = visl_av1_ctrl_descs,
+	.num_ctrls = ARRAY_SIZE(visl_av1_ctrl_descs),
+};
+
+struct v4l2_ctrl *visl_find_control(struct visl_ctx *ctx, u32 id)
+{
+	struct v4l2_ctrl_handler *hdl = &ctx->hdl;
+
+	return v4l2_ctrl_find(hdl, id);
+}
+
+void *visl_find_control_data(struct visl_ctx *ctx, u32 id)
+{
+	struct v4l2_ctrl *ctrl;
+
+	ctrl = visl_find_control(ctx, id);
+	if (ctrl)
+		return ctrl->p_cur.p;
+
+	return NULL;
+}
+
+u32 visl_control_num_elems(struct visl_ctx *ctx, u32 id)
+{
+	struct v4l2_ctrl *ctrl;
+
+	ctrl = visl_find_control(ctx, id);
+	if (ctrl)
+		return ctrl->elems;
+
+	return 0;
+}
+
+static void visl_device_release(struct video_device *vdev)
+{
+	struct visl_dev *dev = container_of(vdev, struct visl_dev, vfd);
+
+	v4l2_device_unregister(&dev->v4l2_dev);
+	v4l2_m2m_release(dev->m2m_dev);
+	media_device_cleanup(&dev->mdev);
+	visl_debugfs_deinit(dev);
+	kfree(dev);
+}
+
+#define VISL_CONTROLS_COUNT	ARRAY_SIZE(visl_controls)
+
+static int visl_init_ctrls(struct visl_ctx *ctx)
+{
+	struct visl_dev *dev = ctx->dev;
+	struct v4l2_ctrl_handler *hdl = &ctx->hdl;
+	unsigned int ctrl_cnt = 0;
+	unsigned int i;
+	unsigned int j;
+	const struct visl_ctrls *ctrls;
+
+	for (i = 0; i < num_coded_fmts; i++)
+		ctrl_cnt += visl_coded_fmts[i].ctrls->num_ctrls;
+
+	v4l2_ctrl_handler_init(hdl, ctrl_cnt);
+
+	for (i = 0; i < num_coded_fmts; i++) {
+		ctrls = visl_coded_fmts[i].ctrls;
+		for (j = 0; j < ctrls->num_ctrls; j++)
+			v4l2_ctrl_new_custom(hdl, &ctrls->ctrls[j].cfg, NULL);
+	}
+
+	if (hdl->error) {
+		v4l2_err(&dev->v4l2_dev,
+			 "Failed to initialize control handler\n");
+		v4l2_ctrl_handler_free(hdl);
+		return hdl->error;
+	}
+
+	ctx->fh.ctrl_handler = hdl;
+	v4l2_ctrl_handler_setup(hdl);
+
+	return 0;
+}
+
+static int visl_open(struct file *file)
+{
+	struct visl_dev *dev = video_drvdata(file);
+	struct visl_ctx *ctx = NULL;
+	int rc = 0;
+
+	if (mutex_lock_interruptible(&dev->dev_mutex))
+		return -ERESTARTSYS;
+	ctx = kzalloc_obj(*ctx);
+	if (!ctx) {
+		rc = -ENOMEM;
+		goto unlock;
+	}
+
+	ctx->tpg_str_buf = kzalloc(TPG_STR_BUF_SZ, GFP_KERNEL);
+	if (!ctx->tpg_str_buf) {
+		rc = -ENOMEM;
+		goto free_ctx;
+	}
+
+	v4l2_fh_init(&ctx->fh, video_devdata(file));
+	ctx->dev = dev;
+
+	rc = visl_init_ctrls(ctx);
+	if (rc)
+		goto free_ctx;
+
+	ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &visl_queue_init);
+
+	mutex_init(&ctx->vb_mutex);
+
+	if (IS_ERR(ctx->fh.m2m_ctx)) {
+		rc = PTR_ERR(ctx->fh.m2m_ctx);
+		goto free_hdl;
+	}
+
+	rc = visl_set_default_format(ctx);
+	if (rc)
+		goto free_m2m_ctx;
+
+	v4l2_fh_add(&ctx->fh, file);
+
+	dprintk(dev, "Created instance: %p, m2m_ctx: %p\n",
+		ctx, ctx->fh.m2m_ctx);
+
+	mutex_unlock(&dev->dev_mutex);
+	return rc;
+
+free_m2m_ctx:
+	v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
+free_hdl:
+	v4l2_ctrl_handler_free(&ctx->hdl);
+	v4l2_fh_exit(&ctx->fh);
+free_ctx:
+	kfree(ctx->tpg_str_buf);
+	kfree(ctx);
+unlock:
+	mutex_unlock(&dev->dev_mutex);
+	return rc;
+}
+
+static int visl_release(struct file *file)
+{
+	struct visl_dev *dev = video_drvdata(file);
+	struct visl_ctx *ctx = visl_file_to_ctx(file);
+
+	dprintk(dev, "Releasing instance %p\n", ctx);
+
+	tpg_free(&ctx->tpg);
+	v4l2_fh_del(&ctx->fh, file);
+	v4l2_fh_exit(&ctx->fh);
+	v4l2_ctrl_handler_free(&ctx->hdl);
+	mutex_lock(&dev->dev_mutex);
+	v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
+	mutex_unlock(&dev->dev_mutex);
+
+	kfree(ctx->tpg_str_buf);
+	kfree(ctx);
+
+	return 0;
+}
+
+static const struct v4l2_file_operations visl_fops = {
+	.owner		= THIS_MODULE,
+	.open		= visl_open,
+	.release	= visl_release,
+	.poll		= v4l2_m2m_fop_poll,
+	.unlocked_ioctl	= video_ioctl2,
+	.mmap		= v4l2_m2m_fop_mmap,
+};
+
+static const struct video_device visl_videodev = {
+	.name		= VISL_NAME,
+	.vfl_dir	= VFL_DIR_M2M,
+	.fops		= &visl_fops,
+	.ioctl_ops	= &visl_ioctl_ops,
+	.minor		= -1,
+	.release	= visl_device_release,
+	.device_caps	= V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING,
+};
+
+static const struct v4l2_m2m_ops visl_m2m_ops = {
+	.device_run	= visl_device_run,
+};
+
+static const struct media_device_ops visl_m2m_media_ops = {
+	.req_validate	= visl_request_validate,
+	.req_queue	= v4l2_m2m_request_queue,
+};
+
+static int visl_probe(struct platform_device *pdev)
+{
+	struct visl_dev *dev;
+	struct video_device *vfd;
+	int ret;
+	int rc;
+
+	dev = kzalloc_obj(*dev);
+	if (!dev)
+		return -ENOMEM;
+
+	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+	if (ret)
+		goto error_visl_dev;
+
+	mutex_init(&dev->dev_mutex);
+
+	dev->vfd = visl_videodev;
+	vfd = &dev->vfd;
+	vfd->lock = &dev->dev_mutex;
+	vfd->v4l2_dev = &dev->v4l2_dev;
+
+	video_set_drvdata(vfd, dev);
+
+	platform_set_drvdata(pdev, dev);
+
+	dev->m2m_dev = v4l2_m2m_init(&visl_m2m_ops);
+	if (IS_ERR(dev->m2m_dev)) {
+		v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
+		ret = PTR_ERR(dev->m2m_dev);
+		dev->m2m_dev = NULL;
+		goto error_dev;
+	}
+
+	dev->mdev.dev = &pdev->dev;
+	strscpy(dev->mdev.model, "visl", sizeof(dev->mdev.model));
+	strscpy(dev->mdev.bus_info, "platform:visl",
+		sizeof(dev->mdev.bus_info));
+	media_device_init(&dev->mdev);
+	dev->mdev.ops = &visl_m2m_media_ops;
+	dev->v4l2_dev.mdev = &dev->mdev;
+
+	ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
+		goto error_m2m;
+	}
+
+	v4l2_info(&dev->v4l2_dev,
+		  "Device registered as /dev/video%d\n", vfd->num);
+
+	ret = v4l2_m2m_register_media_controller(dev->m2m_dev, vfd,
+						 MEDIA_ENT_F_PROC_VIDEO_DECODER);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller\n");
+		goto error_v4l2;
+	}
+
+	ret = media_device_register(&dev->mdev);
+	if (ret) {
+		v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n");
+		goto error_m2m_mc;
+	}
+
+	rc = visl_debugfs_init(dev);
+	if (rc)
+		dprintk(dev, "visl_debugfs_init failed: %d\n"
+			"Continuing without debugfs support\n", rc);
+
+	return 0;
+
+error_m2m_mc:
+	v4l2_m2m_unregister_media_controller(dev->m2m_dev);
+error_v4l2:
+	video_unregister_device(&dev->vfd);
+	/* visl_device_release called by video_unregister_device to release various objects */
+	return ret;
+error_m2m:
+	v4l2_m2m_release(dev->m2m_dev);
+error_dev:
+	v4l2_device_unregister(&dev->v4l2_dev);
+error_visl_dev:
+	kfree(dev);
+
+	return ret;
+}
+
+static void visl_remove(struct platform_device *pdev)
+{
+	struct visl_dev *dev = platform_get_drvdata(pdev);
+
+	v4l2_info(&dev->v4l2_dev, "Removing " VISL_NAME);
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	if (media_devnode_is_registered(dev->mdev.devnode)) {
+		media_device_unregister(&dev->mdev);
+		v4l2_m2m_unregister_media_controller(dev->m2m_dev);
+	}
+#endif
+	video_unregister_device(&dev->vfd);
+}
+
+static struct platform_driver visl_pdrv = {
+	.probe		= visl_probe,
+	.remove		= visl_remove,
+	.driver		= {
+		.name	= VISL_NAME,
+	},
+};
+
+static void visl_dev_release(struct device *dev) {}
+
+static struct platform_device visl_pdev = {
+	.name		= VISL_NAME,
+	.dev.release	= visl_dev_release,
+};
+
+static void __exit visl_exit(void)
+{
+	platform_driver_unregister(&visl_pdrv);
+	platform_device_unregister(&visl_pdev);
+}
+
+static int __init visl_init(void)
+{
+	int ret;
+
+	ret = platform_device_register(&visl_pdev);
+	if (ret)
+		return ret;
+
+	ret = platform_driver_register(&visl_pdrv);
+	if (ret)
+		platform_device_unregister(&visl_pdev);
+
+	return ret;
+}
+
+MODULE_DESCRIPTION("Virtual stateless decoder device");
+MODULE_AUTHOR("Daniel Almeida <daniel.almeida@collabora.com>");
+MODULE_LICENSE("GPL");
+
+module_init(visl_init);
+module_exit(visl_exit);
diff --git a/drivers/media/test-drivers/visl/visl-debugfs.c b/drivers/media/test-drivers/visl/visl-debugfs.c
new file mode 100644
index 000000000..dd0ca5d81
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-debugfs.c
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Debugfs tracing for bitstream buffers. This is similar to VA-API's
+ * LIBVA_TRACE_BUFDATA in that the raw bitstream can be dumped as a debugging
+ * aid.
+ *
+ * Produces one file per OUTPUT buffer. Files are automatically cleared on
+ * STREAMOFF unless the module parameter "keep_bitstream_buffers" is set.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <media/v4l2-mem2mem.h>
+
+#include "visl-debugfs.h"
+
+int visl_debugfs_init(struct visl_dev *dev)
+{
+	dev->debugfs_root = debugfs_create_dir("visl", NULL);
+	INIT_LIST_HEAD(&dev->bitstream_blobs);
+	mutex_init(&dev->bitstream_lock);
+
+	if (IS_ERR(dev->debugfs_root))
+		return PTR_ERR(dev->debugfs_root);
+
+	return visl_debugfs_bitstream_init(dev);
+}
+
+int visl_debugfs_bitstream_init(struct visl_dev *dev)
+{
+	dev->bitstream_debugfs = debugfs_create_dir("bitstream",
+						    dev->debugfs_root);
+	if (IS_ERR(dev->bitstream_debugfs))
+		return PTR_ERR(dev->bitstream_debugfs);
+
+	return 0;
+}
+
+void visl_trace_bitstream(struct visl_ctx *ctx, struct visl_run *run)
+{
+	u8 *vaddr = vb2_plane_vaddr(&run->src->vb2_buf, 0);
+	struct visl_blob *blob;
+	size_t data_sz = vb2_get_plane_payload(&run->src->vb2_buf, 0);
+	struct dentry *dentry;
+	char name[32];
+
+	blob = kzalloc_obj(*blob);
+	if (!blob)
+		return;
+
+	blob->blob.data = vzalloc(data_sz);
+	if (!blob->blob.data)
+		goto err_vmalloc;
+
+	blob->blob.size = data_sz;
+	snprintf(name, 32, "bitstream%d", run->src->sequence);
+
+	memcpy(blob->blob.data, vaddr, data_sz);
+
+	dentry = debugfs_create_blob(name, 0444, ctx->dev->bitstream_debugfs,
+				     &blob->blob);
+	if (IS_ERR(dentry))
+		goto err_debugfs;
+
+	blob->dentry = dentry;
+
+	mutex_lock(&ctx->dev->bitstream_lock);
+	list_add_tail(&blob->list, &ctx->dev->bitstream_blobs);
+	mutex_unlock(&ctx->dev->bitstream_lock);
+
+	return;
+
+err_debugfs:
+	vfree(blob->blob.data);
+err_vmalloc:
+	kfree(blob);
+}
+
+void visl_debugfs_clear_bitstream(struct visl_dev *dev)
+{
+	struct visl_blob *blob;
+	struct visl_blob *tmp;
+
+	mutex_lock(&dev->bitstream_lock);
+	if (list_empty(&dev->bitstream_blobs))
+		goto unlock;
+
+	list_for_each_entry_safe(blob, tmp, &dev->bitstream_blobs, list) {
+		list_del(&blob->list);
+		debugfs_remove(blob->dentry);
+		vfree(blob->blob.data);
+		kfree(blob);
+	}
+
+unlock:
+	mutex_unlock(&dev->bitstream_lock);
+}
+
+void visl_debugfs_bitstream_deinit(struct visl_dev *dev)
+{
+	visl_debugfs_clear_bitstream(dev);
+	debugfs_remove_recursive(dev->bitstream_debugfs);
+	dev->bitstream_debugfs = NULL;
+}
+
+void visl_debugfs_deinit(struct visl_dev *dev)
+{
+	visl_debugfs_bitstream_deinit(dev);
+	debugfs_remove_recursive(dev->debugfs_root);
+	dev->debugfs_root = NULL;
+}
diff --git a/drivers/media/test-drivers/visl/visl-debugfs.h b/drivers/media/test-drivers/visl/visl-debugfs.h
new file mode 100644
index 000000000..81508f611
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-debugfs.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Debugfs tracing for bitstream buffers. This is similar to VA-API's
+ * LIBVA_TRACE_BUFDATA in that the raw bitstream can be dumped as a debugging
+ * aid.
+ *
+ * Produces one file per OUTPUT buffer. Files are automatically cleared on
+ * STREAMOFF unless the module parameter "keep_bitstream_buffers" is set.
+ */
+
+#include "visl.h"
+#include "visl-dec.h"
+
+#ifdef CONFIG_VISL_DEBUGFS
+
+int visl_debugfs_init(struct visl_dev *dev);
+int visl_debugfs_bitstream_init(struct visl_dev *dev);
+void visl_trace_bitstream(struct visl_ctx *ctx, struct visl_run *run);
+void visl_debugfs_clear_bitstream(struct visl_dev *dev);
+void visl_debugfs_bitstream_deinit(struct visl_dev *dev);
+void visl_debugfs_deinit(struct visl_dev *dev);
+
+#else
+
+static inline int visl_debugfs_init(struct visl_dev *dev)
+{
+	return 0;
+}
+
+static inline int visl_debugfs_bitstream_init(struct visl_dev *dev)
+{
+	return 0;
+}
+
+static inline void visl_trace_bitstream(struct visl_ctx *ctx, struct visl_run *run) {}
+static inline void visl_debugfs_clear_bitstream(struct visl_dev *dev) {}
+static inline void visl_debugfs_bitstream_deinit(struct visl_dev *dev) {}
+static inline void visl_debugfs_deinit(struct visl_dev *dev) {}
+
+#endif
diff --git a/drivers/media/test-drivers/visl/visl-dec.c b/drivers/media/test-drivers/visl/visl-dec.c
new file mode 100644
index 000000000..6bbf93757
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-dec.c
@@ -0,0 +1,655 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Contains the virtual decoder logic. The functions here control the
+ * tracing/TPG on a per-frame basis
+ */
+
+#include "visl.h"
+#include "visl-debugfs.h"
+#include "visl-dec.h"
+#include "visl-trace-fwht.h"
+#include "visl-trace-mpeg2.h"
+#include "visl-trace-vp8.h"
+#include "visl-trace-vp9.h"
+#include "visl-trace-h264.h"
+#include "visl-trace-hevc.h"
+#include "visl-trace-av1.h"
+
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/tpg/v4l2-tpg.h>
+
+#define LAST_BUF_IDX (V4L2_AV1_REF_LAST_FRAME - V4L2_AV1_REF_LAST_FRAME)
+#define LAST2_BUF_IDX (V4L2_AV1_REF_LAST2_FRAME - V4L2_AV1_REF_LAST_FRAME)
+#define LAST3_BUF_IDX (V4L2_AV1_REF_LAST3_FRAME - V4L2_AV1_REF_LAST_FRAME)
+#define GOLDEN_BUF_IDX (V4L2_AV1_REF_GOLDEN_FRAME - V4L2_AV1_REF_LAST_FRAME)
+#define BWD_BUF_IDX (V4L2_AV1_REF_BWDREF_FRAME - V4L2_AV1_REF_LAST_FRAME)
+#define ALT2_BUF_IDX (V4L2_AV1_REF_ALTREF2_FRAME - V4L2_AV1_REF_LAST_FRAME)
+#define ALT_BUF_IDX (V4L2_AV1_REF_ALTREF_FRAME - V4L2_AV1_REF_LAST_FRAME)
+
+static void *plane_vaddr(struct tpg_data *tpg, struct vb2_buffer *buf,
+			 u32 p, u32 bpl[TPG_MAX_PLANES], u32 h)
+{
+	u32 i;
+	void *vbuf;
+
+	if (p == 0 || tpg_g_buffers(tpg) > 1)
+		return vb2_plane_vaddr(buf, p);
+	vbuf = vb2_plane_vaddr(buf, 0);
+	for (i = 0; i < p; i++)
+		vbuf += bpl[i] * h / tpg->vdownsampling[i];
+	return vbuf;
+}
+
+static void visl_print_ts_idx(u8 **buf, __kernel_size_t *buflen, const char *name,
+			      u64 ts, struct vb2_buffer *vb2_buf)
+{
+	u32 len;
+
+	if (tpg_verbose && vb2_buf) {
+		len = scnprintf(*buf, *buflen, "%s: %lld, vb2_idx: %d\n", name,
+				ts, vb2_buf->index);
+	} else {
+		len = scnprintf(*buf, *buflen, "%s: %lld\n", name, ts);
+	}
+
+	*buf += len;
+	*buflen -= len;
+}
+
+static void visl_get_ref_frames(struct visl_ctx *ctx, u8 *buf,
+				__kernel_size_t buflen, struct visl_run *run)
+{
+	struct vb2_queue *cap_q = &ctx->fh.m2m_ctx->cap_q_ctx.q;
+	char header[] = "Reference frames:\n";
+	u32 i;
+	u32 len;
+
+	len = scnprintf(buf, buflen, header);
+	buf += len;
+	buflen -= len;
+
+	switch (ctx->current_codec) {
+	case VISL_CODEC_NONE:
+		break;
+
+	case VISL_CODEC_FWHT: {
+		struct vb2_buffer *vb2_buf;
+
+		vb2_buf = vb2_find_buffer(cap_q, run->fwht.params->backward_ref_ts);
+
+		visl_print_ts_idx(&buf, &buflen, "backwards_ref_ts",
+				  run->fwht.params->backward_ref_ts, vb2_buf);
+
+		break;
+	}
+
+	case VISL_CODEC_MPEG2: {
+		struct vb2_buffer *b_ref;
+		struct vb2_buffer *f_ref;
+
+		b_ref = vb2_find_buffer(cap_q, run->mpeg2.pic->backward_ref_ts);
+		f_ref = vb2_find_buffer(cap_q, run->mpeg2.pic->forward_ref_ts);
+
+		visl_print_ts_idx(&buf, &buflen, "backward_ref_ts",
+				  run->mpeg2.pic->backward_ref_ts, b_ref);
+		visl_print_ts_idx(&buf, &buflen, "forward_ref_ts",
+				  run->mpeg2.pic->forward_ref_ts, f_ref);
+
+		break;
+	}
+
+	case VISL_CODEC_VP8: {
+		struct vb2_buffer *last;
+		struct vb2_buffer *golden;
+		struct vb2_buffer *alt;
+
+		last = vb2_find_buffer(cap_q, run->vp8.frame->last_frame_ts);
+		golden = vb2_find_buffer(cap_q, run->vp8.frame->golden_frame_ts);
+		alt = vb2_find_buffer(cap_q, run->vp8.frame->alt_frame_ts);
+
+		visl_print_ts_idx(&buf, &buflen, "last_ref_ts",
+				  run->vp8.frame->last_frame_ts, last);
+		visl_print_ts_idx(&buf, &buflen, "golden_ref_ts",
+				  run->vp8.frame->golden_frame_ts, golden);
+		visl_print_ts_idx(&buf, &buflen, "alt_ref_ts",
+				  run->vp8.frame->alt_frame_ts, alt);
+
+		break;
+	}
+
+	case VISL_CODEC_VP9: {
+		struct vb2_buffer *last;
+		struct vb2_buffer *golden;
+		struct vb2_buffer *alt;
+
+		last = vb2_find_buffer(cap_q, run->vp9.frame->last_frame_ts);
+		golden = vb2_find_buffer(cap_q, run->vp9.frame->golden_frame_ts);
+		alt = vb2_find_buffer(cap_q, run->vp9.frame->alt_frame_ts);
+
+		visl_print_ts_idx(&buf, &buflen, "last_ref_ts",
+				  run->vp9.frame->last_frame_ts, last);
+		visl_print_ts_idx(&buf, &buflen, "golden_ref_ts",
+				  run->vp9.frame->golden_frame_ts, golden);
+		visl_print_ts_idx(&buf, &buflen, "alt_ref_ts",
+				  run->vp9.frame->alt_frame_ts, alt);
+
+		break;
+	}
+
+	case VISL_CODEC_H264: {
+		char entry[] = "dpb[%d]:%u, vb2_index: %d\n";
+		char entry_stable[] = "dpb[%d]:%u\n";
+		struct vb2_buffer *vb2_buf;
+
+		for (i = 0; i < ARRAY_SIZE(run->h264.dpram->dpb); i++) {
+			vb2_buf = vb2_find_buffer(cap_q,
+						  run->h264.dpram->dpb[i].reference_ts);
+			if (tpg_verbose && vb2_buf) {
+				len = scnprintf(buf, buflen, entry, i,
+						run->h264.dpram->dpb[i].reference_ts,
+						vb2_buf->index);
+			} else {
+				len = scnprintf(buf, buflen, entry_stable, i,
+						run->h264.dpram->dpb[i].reference_ts);
+			}
+			buf += len;
+			buflen -= len;
+		}
+
+		break;
+	}
+
+	case VISL_CODEC_HEVC: {
+		char entry[] = "dpb[%d]:%u, vb2_index: %d\n";
+		char entry_stable[] = "dpb[%d]:%u\n";
+		struct vb2_buffer *vb2_buf;
+
+		for (i = 0; i < ARRAY_SIZE(run->hevc.dpram->dpb); i++) {
+			vb2_buf = vb2_find_buffer(cap_q, run->hevc.dpram->dpb[i].timestamp);
+			if (tpg_verbose && vb2_buf) {
+				len = scnprintf(buf, buflen, entry, i,
+						run->hevc.dpram->dpb[i].timestamp,
+						vb2_buf->index);
+			} else {
+				len = scnprintf(buf, buflen, entry_stable, i,
+						run->hevc.dpram->dpb[i].timestamp);
+			}
+
+			buf += len;
+			buflen -= len;
+		}
+
+		break;
+	}
+
+	case VISL_CODEC_AV1: {
+		int idx_last = run->av1.frame->ref_frame_idx[LAST_BUF_IDX];
+		int idx_last2 = run->av1.frame->ref_frame_idx[LAST2_BUF_IDX];
+		int idx_last3 = run->av1.frame->ref_frame_idx[LAST3_BUF_IDX];
+		int idx_golden = run->av1.frame->ref_frame_idx[GOLDEN_BUF_IDX];
+		int idx_bwd = run->av1.frame->ref_frame_idx[BWD_BUF_IDX];
+		int idx_alt2 = run->av1.frame->ref_frame_idx[ALT2_BUF_IDX];
+		int idx_alt = run->av1.frame->ref_frame_idx[ALT_BUF_IDX];
+
+		const u64 *reference_frame_ts = run->av1.frame->reference_frame_ts;
+
+		struct vb2_buffer *ref_last =
+			vb2_find_buffer(cap_q, reference_frame_ts[idx_last]);
+		struct vb2_buffer *ref_last2 =
+			vb2_find_buffer(cap_q, reference_frame_ts[idx_last2]);
+		struct vb2_buffer *ref_last3 =
+			vb2_find_buffer(cap_q, reference_frame_ts[idx_last3]);
+		struct vb2_buffer *ref_golden =
+			vb2_find_buffer(cap_q, reference_frame_ts[idx_golden]);
+		struct vb2_buffer *ref_bwd =
+			vb2_find_buffer(cap_q, reference_frame_ts[idx_bwd]);
+		struct vb2_buffer *ref_alt2 =
+			vb2_find_buffer(cap_q, reference_frame_ts[idx_alt2]);
+		struct vb2_buffer *ref_alt =
+			vb2_find_buffer(cap_q, reference_frame_ts[idx_alt]);
+
+		visl_print_ts_idx(&buf, &buflen, "ref_last_ts",
+				  reference_frame_ts[idx_last], ref_last);
+		visl_print_ts_idx(&buf, &buflen, "ref_last2_ts",
+				  reference_frame_ts[idx_last2], ref_last2);
+		visl_print_ts_idx(&buf, &buflen, "ref_last3_ts",
+				  reference_frame_ts[idx_last3], ref_last3);
+		visl_print_ts_idx(&buf, &buflen, "ref_golden_ts",
+				  reference_frame_ts[idx_golden], ref_golden);
+		visl_print_ts_idx(&buf, &buflen, "ref_bwd_ts",
+				  reference_frame_ts[idx_bwd], ref_bwd);
+		visl_print_ts_idx(&buf, &buflen, "ref_alt2_ts",
+				  reference_frame_ts[idx_alt2], ref_alt2);
+		visl_print_ts_idx(&buf, &buflen, "ref_alt_ts",
+				  reference_frame_ts[idx_alt], ref_alt);
+
+		break;
+	}
+	}
+}
+
+static char *visl_get_vb2_state(enum vb2_buffer_state state)
+{
+	switch (state) {
+	case VB2_BUF_STATE_DEQUEUED:
+		return "Dequeued";
+	case VB2_BUF_STATE_IN_REQUEST:
+		return "In request";
+	case VB2_BUF_STATE_PREPARING:
+		return "Preparing";
+	case VB2_BUF_STATE_QUEUED:
+		return "Queued";
+	case VB2_BUF_STATE_ACTIVE:
+		return "Active";
+	case VB2_BUF_STATE_DONE:
+		return "Done";
+	case VB2_BUF_STATE_ERROR:
+		return "Error";
+	default:
+		return "";
+	}
+}
+
+static int visl_fill_bytesused(struct vb2_v4l2_buffer *v4l2_vb2_buf, char *buf, size_t bufsz)
+{
+	int len = 0;
+	u32 i;
+
+	for (i = 0; i < v4l2_vb2_buf->vb2_buf.num_planes; i++)
+		len += scnprintf(buf, bufsz,
+				"bytesused[%u]: %u length[%u]: %u data_offset[%u]: %u",
+				i, v4l2_vb2_buf->planes[i].bytesused,
+				i, v4l2_vb2_buf->planes[i].length,
+				i, v4l2_vb2_buf->planes[i].data_offset);
+
+	return len;
+}
+
+static void visl_tpg_fill_sequence(struct visl_ctx *ctx,
+				   struct visl_run *run, char buf[], size_t bufsz)
+{
+	u32 stream_ms;
+	int len;
+
+	if (tpg_verbose) {
+		stream_ms = jiffies_to_msecs(get_jiffies_64() - ctx->capture_streamon_jiffies);
+
+		len = scnprintf(buf, bufsz,
+				"stream time: %02d:%02d:%02d:%03d ",
+				(stream_ms / (60 * 60 * 1000)) % 24,
+				(stream_ms / (60 * 1000)) % 60,
+				(stream_ms / 1000) % 60,
+				stream_ms % 1000);
+		buf += len;
+		bufsz -= len;
+	}
+
+	scnprintf(buf, bufsz,
+		  "sequence:%u timestamp:%lld field:%s",
+		  run->dst->sequence,
+		  run->dst->vb2_buf.timestamp,
+		  (run->dst->field == V4L2_FIELD_ALTERNATE) ?
+		  (run->dst->field == V4L2_FIELD_TOP ?
+		  " top" : " bottom") : "none");
+}
+
+static bool visl_tpg_fill_codec_specific(struct visl_ctx *ctx,
+					 struct visl_run *run,
+					 char buf[], size_t bufsz)
+{
+	/*
+	 * To add variability, we need a value that is stable for a given
+	 * input but is different than already shown fields.
+	 * The pic order count value defines the display order of the frames
+	 * (which can be different than the decoding order that is shown with
+	 * the sequence number).
+	 * Therefore it is stable for a given input and will add a different
+	 * value that is more specific to the way the input is encoded.
+	 */
+	switch (ctx->current_codec) {
+	case VISL_CODEC_H264:
+		scnprintf(buf, bufsz,
+			  "H264: %u", run->h264.dpram->pic_order_cnt_lsb);
+		break;
+	case VISL_CODEC_HEVC:
+		scnprintf(buf, bufsz,
+			  "HEVC: %d", run->hevc.dpram->pic_order_cnt_val);
+		break;
+	default:
+		return false;
+	}
+
+	return true;
+}
+
+static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
+{
+	u8 *basep[TPG_MAX_PLANES][2];
+	char *buf = ctx->tpg_str_buf;
+	char *tmp = buf;
+	char *line_str;
+	u32 line = 1;
+	const u32 line_height = 16;
+	u32 len;
+	struct vb2_queue *out_q = &ctx->fh.m2m_ctx->out_q_ctx.q;
+	struct vb2_queue *cap_q = &ctx->fh.m2m_ctx->cap_q_ctx.q;
+	struct v4l2_pix_format_mplane *coded_fmt = &ctx->coded_fmt.fmt.pix_mp;
+	struct v4l2_pix_format_mplane *decoded_fmt = &ctx->decoded_fmt.fmt.pix_mp;
+	u32 p;
+	u32 i;
+
+	for (p = 0; p < tpg_g_planes(&ctx->tpg); p++) {
+		void *vbuf = plane_vaddr(&ctx->tpg,
+					 &run->dst->vb2_buf, p,
+					 ctx->tpg.bytesperline,
+					 ctx->tpg.buf_height);
+
+		tpg_calc_text_basep(&ctx->tpg, basep, p, vbuf);
+		tpg_fill_plane_buffer(&ctx->tpg, 0, p, vbuf);
+	}
+
+	visl_tpg_fill_sequence(ctx, run, buf, TPG_STR_BUF_SZ);
+	tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, buf);
+	frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
+	frame_dprintk(ctx->dev, run->dst->sequence, "");
+	line++;
+
+	if (visl_tpg_fill_codec_specific(ctx, run, buf, TPG_STR_BUF_SZ)) {
+		tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, buf);
+		frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
+		frame_dprintk(ctx->dev, run->dst->sequence, "");
+		line++;
+	}
+
+	visl_get_ref_frames(ctx, buf, TPG_STR_BUF_SZ, run);
+
+	while ((line_str = strsep(&tmp, "\n")) && strlen(line_str)) {
+		tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, line_str);
+		frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", line_str);
+	}
+
+	frame_dprintk(ctx->dev, run->dst->sequence, "");
+	line++;
+
+	scnprintf(buf,
+		  TPG_STR_BUF_SZ,
+		  "OUTPUT pixelformat: %c%c%c%c, resolution: %dx%d, num_planes: %d",
+		  coded_fmt->pixelformat,
+		  (coded_fmt->pixelformat >> 8) & 0xff,
+		  (coded_fmt->pixelformat >> 16) & 0xff,
+		  (coded_fmt->pixelformat >> 24) & 0xff,
+		  coded_fmt->width,
+		  coded_fmt->height,
+		  coded_fmt->num_planes);
+
+	tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, buf);
+	frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
+
+	for (i = 0; i < coded_fmt->num_planes; i++) {
+		scnprintf(buf,
+			  TPG_STR_BUF_SZ,
+			  "plane[%d]: bytesperline: %d, sizeimage: %d",
+			  i,
+			  coded_fmt->plane_fmt[i].bytesperline,
+			  coded_fmt->plane_fmt[i].sizeimage);
+
+		tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, buf);
+		frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
+	}
+
+	if (tpg_verbose) {
+		line++;
+		frame_dprintk(ctx->dev, run->dst->sequence, "");
+		scnprintf(buf, TPG_STR_BUF_SZ, "Output queue status:");
+		tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, buf);
+		frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
+
+		len = 0;
+		for (i = 0; i < vb2_get_num_buffers(out_q); i++) {
+			char entry[] = "index: %u, state: %s, request_fd: %d, ";
+			u32 old_len = len;
+			struct vb2_buffer *vb2;
+			char *q_status;
+
+			vb2 = vb2_get_buffer(out_q, i);
+			if (!vb2)
+				continue;
+
+			q_status = visl_get_vb2_state(vb2->state);
+
+			len += scnprintf(&buf[len], TPG_STR_BUF_SZ - len,
+					 entry, i, q_status,
+					 to_vb2_v4l2_buffer(vb2)->request_fd);
+
+			len += visl_fill_bytesused(to_vb2_v4l2_buffer(vb2),
+						   &buf[len],
+						   TPG_STR_BUF_SZ - len);
+
+			tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, &buf[old_len]);
+			frame_dprintk(ctx->dev, run->dst->sequence, "%s", &buf[old_len]);
+		}
+	}
+
+	line++;
+	frame_dprintk(ctx->dev, run->dst->sequence, "");
+
+	scnprintf(buf,
+		  TPG_STR_BUF_SZ,
+		  "CAPTURE pixelformat: %c%c%c%c, resolution: %dx%d, num_planes: %d",
+		  decoded_fmt->pixelformat,
+		  (decoded_fmt->pixelformat >> 8) & 0xff,
+		  (decoded_fmt->pixelformat >> 16) & 0xff,
+		  (decoded_fmt->pixelformat >> 24) & 0xff,
+		  decoded_fmt->width,
+		  decoded_fmt->height,
+		  decoded_fmt->num_planes);
+
+	tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, buf);
+	frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
+
+	for (i = 0; i < decoded_fmt->num_planes; i++) {
+		scnprintf(buf,
+			  TPG_STR_BUF_SZ,
+			  "plane[%d]: bytesperline: %d, sizeimage: %d",
+			  i,
+			  decoded_fmt->plane_fmt[i].bytesperline,
+			  decoded_fmt->plane_fmt[i].sizeimage);
+
+		tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, buf);
+		frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
+	}
+
+	if (tpg_verbose) {
+		line++;
+		frame_dprintk(ctx->dev, run->dst->sequence, "");
+		scnprintf(buf, TPG_STR_BUF_SZ, "Capture queue status:");
+		tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, buf);
+		frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
+
+		len = 0;
+		for (i = 0; i < vb2_get_num_buffers(cap_q); i++) {
+			u32 old_len = len;
+			struct vb2_buffer *vb2;
+			char *q_status;
+
+			vb2 = vb2_get_buffer(cap_q, i);
+			if (!vb2)
+				continue;
+
+			q_status = visl_get_vb2_state(vb2->state);
+
+			len += scnprintf(&buf[len], TPG_STR_BUF_SZ - len,
+					 "index: %u, status: %s, timestamp: %llu, is_held: %d",
+					 vb2->index, q_status,
+					 vb2->timestamp,
+					 to_vb2_v4l2_buffer(vb2)->is_held);
+
+			tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, &buf[old_len]);
+			frame_dprintk(ctx->dev, run->dst->sequence, "%s", &buf[old_len]);
+		}
+	}
+}
+
+static void visl_trace_ctrls(struct visl_ctx *ctx, struct visl_run *run)
+{
+	int i;
+
+	switch (ctx->current_codec) {
+	default:
+	case VISL_CODEC_NONE:
+		break;
+	case VISL_CODEC_FWHT:
+		trace_v4l2_ctrl_fwht_params(run->fwht.params);
+		break;
+	case VISL_CODEC_MPEG2:
+		trace_v4l2_ctrl_mpeg2_sequence(run->mpeg2.seq);
+		trace_v4l2_ctrl_mpeg2_picture(run->mpeg2.pic);
+		trace_v4l2_ctrl_mpeg2_quantisation(run->mpeg2.quant);
+		break;
+	case VISL_CODEC_VP8:
+		trace_v4l2_ctrl_vp8_frame(run->vp8.frame);
+		trace_v4l2_ctrl_vp8_entropy(run->vp8.frame);
+		break;
+	case VISL_CODEC_VP9:
+		trace_v4l2_ctrl_vp9_frame(run->vp9.frame);
+		trace_v4l2_ctrl_vp9_compressed_hdr(run->vp9.probs);
+		trace_v4l2_ctrl_vp9_compressed_coeff(run->vp9.probs);
+		trace_v4l2_vp9_mv_probs(&run->vp9.probs->mv);
+		break;
+	case VISL_CODEC_H264:
+		trace_v4l2_ctrl_h264_sps(run->h264.sps);
+		trace_v4l2_ctrl_h264_pps(run->h264.pps);
+		trace_v4l2_ctrl_h264_scaling_matrix(run->h264.sm);
+		trace_v4l2_ctrl_h264_slice_params(run->h264.spram);
+
+		for (i = 0; i < ARRAY_SIZE(run->h264.spram->ref_pic_list0); i++)
+			trace_v4l2_h264_ref_pic_list0(&run->h264.spram->ref_pic_list0[i], i);
+		for (i = 0; i < ARRAY_SIZE(run->h264.spram->ref_pic_list0); i++)
+			trace_v4l2_h264_ref_pic_list1(&run->h264.spram->ref_pic_list1[i], i);
+
+		trace_v4l2_ctrl_h264_decode_params(run->h264.dpram);
+
+		for (i = 0; i < ARRAY_SIZE(run->h264.dpram->dpb); i++)
+			trace_v4l2_h264_dpb_entry(&run->h264.dpram->dpb[i], i);
+
+		trace_v4l2_ctrl_h264_pred_weights(run->h264.pwht);
+		break;
+	case VISL_CODEC_HEVC:
+		trace_v4l2_ctrl_hevc_sps(run->hevc.sps);
+		trace_v4l2_ctrl_hevc_pps(run->hevc.pps);
+		trace_v4l2_ctrl_hevc_slice_params(run->hevc.spram);
+		trace_v4l2_ctrl_hevc_scaling_matrix(run->hevc.sm);
+		trace_v4l2_ctrl_hevc_decode_params(run->hevc.dpram);
+
+		for (i = 0; i < ARRAY_SIZE(run->hevc.dpram->dpb); i++)
+			trace_v4l2_hevc_dpb_entry(&run->hevc.dpram->dpb[i]);
+
+		trace_v4l2_hevc_pred_weight_table(&run->hevc.spram->pred_weight_table);
+		trace_v4l2_ctrl_hevc_ext_sps_lt_rps(run->hevc.rps_lt);
+		trace_v4l2_ctrl_hevc_ext_sps_st_rps(run->hevc.rps_st);
+
+		break;
+	case VISL_CODEC_AV1:
+		trace_v4l2_ctrl_av1_sequence(run->av1.seq);
+		trace_v4l2_ctrl_av1_frame(run->av1.frame);
+		trace_v4l2_ctrl_av1_film_grain(run->av1.grain);
+		trace_v4l2_ctrl_av1_tile_group_entry(run->av1.tge);
+		break;
+	}
+}
+
+void visl_device_run(void *priv)
+{
+	struct visl_ctx *ctx = priv;
+	struct visl_run run = {};
+	struct media_request *src_req;
+
+	run.src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+	run.dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+
+	/* Apply request(s) controls if needed. */
+	src_req = run.src->vb2_buf.req_obj.req;
+
+	if (src_req)
+		v4l2_ctrl_request_setup(src_req, &ctx->hdl);
+
+	v4l2_m2m_buf_copy_metadata(run.src, run.dst);
+	run.dst->sequence = ctx->q_data[V4L2_M2M_DST].sequence++;
+	run.src->sequence = ctx->q_data[V4L2_M2M_SRC].sequence++;
+	run.dst->field = ctx->decoded_fmt.fmt.pix.field;
+
+	switch (ctx->current_codec) {
+	default:
+	case VISL_CODEC_NONE:
+		break;
+	case VISL_CODEC_FWHT:
+		run.fwht.params = visl_find_control_data(ctx, V4L2_CID_STATELESS_FWHT_PARAMS);
+		break;
+	case VISL_CODEC_MPEG2:
+		run.mpeg2.seq = visl_find_control_data(ctx, V4L2_CID_STATELESS_MPEG2_SEQUENCE);
+		run.mpeg2.pic = visl_find_control_data(ctx, V4L2_CID_STATELESS_MPEG2_PICTURE);
+		run.mpeg2.quant = visl_find_control_data(ctx,
+							 V4L2_CID_STATELESS_MPEG2_QUANTISATION);
+		break;
+	case VISL_CODEC_VP8:
+		run.vp8.frame = visl_find_control_data(ctx, V4L2_CID_STATELESS_VP8_FRAME);
+		break;
+	case VISL_CODEC_VP9:
+		run.vp9.frame = visl_find_control_data(ctx, V4L2_CID_STATELESS_VP9_FRAME);
+		run.vp9.probs = visl_find_control_data(ctx, V4L2_CID_STATELESS_VP9_COMPRESSED_HDR);
+		break;
+	case VISL_CODEC_H264:
+		run.h264.sps = visl_find_control_data(ctx, V4L2_CID_STATELESS_H264_SPS);
+		run.h264.pps = visl_find_control_data(ctx, V4L2_CID_STATELESS_H264_PPS);
+		run.h264.sm = visl_find_control_data(ctx, V4L2_CID_STATELESS_H264_SCALING_MATRIX);
+		run.h264.spram = visl_find_control_data(ctx, V4L2_CID_STATELESS_H264_SLICE_PARAMS);
+		run.h264.dpram = visl_find_control_data(ctx, V4L2_CID_STATELESS_H264_DECODE_PARAMS);
+		run.h264.pwht = visl_find_control_data(ctx, V4L2_CID_STATELESS_H264_PRED_WEIGHTS);
+		break;
+	case VISL_CODEC_HEVC:
+		run.hevc.sps = visl_find_control_data(ctx, V4L2_CID_STATELESS_HEVC_SPS);
+		run.hevc.pps = visl_find_control_data(ctx, V4L2_CID_STATELESS_HEVC_PPS);
+		run.hevc.spram = visl_find_control_data(ctx, V4L2_CID_STATELESS_HEVC_SLICE_PARAMS);
+		run.hevc.sm = visl_find_control_data(ctx, V4L2_CID_STATELESS_HEVC_SCALING_MATRIX);
+		run.hevc.dpram = visl_find_control_data(ctx, V4L2_CID_STATELESS_HEVC_DECODE_PARAMS);
+		run.hevc.rps_lt = visl_find_control_data(ctx,
+							 V4L2_CID_STATELESS_HEVC_EXT_SPS_LT_RPS);
+		run.hevc.rps_st = visl_find_control_data(ctx,
+							 V4L2_CID_STATELESS_HEVC_EXT_SPS_ST_RPS);
+		break;
+	case VISL_CODEC_AV1:
+		run.av1.seq = visl_find_control_data(ctx, V4L2_CID_STATELESS_AV1_SEQUENCE);
+		run.av1.frame = visl_find_control_data(ctx, V4L2_CID_STATELESS_AV1_FRAME);
+		run.av1.tge = visl_find_control_data(ctx, V4L2_CID_STATELESS_AV1_TILE_GROUP_ENTRY);
+		run.av1.grain = visl_find_control_data(ctx, V4L2_CID_STATELESS_AV1_FILM_GRAIN);
+		break;
+	}
+
+	frame_dprintk(ctx->dev, run.dst->sequence,
+		      "Got OUTPUT buffer sequence %d, timestamp %llu\n",
+		      run.src->sequence, run.src->vb2_buf.timestamp);
+
+	frame_dprintk(ctx->dev, run.dst->sequence,
+		      "Got CAPTURE buffer sequence %d, timestamp %llu\n",
+		      run.dst->sequence, run.dst->vb2_buf.timestamp);
+
+	visl_tpg_fill(ctx, &run);
+	visl_trace_ctrls(ctx, &run);
+
+	if (bitstream_trace_frame_start > -1 &&
+	    run.dst->sequence >= bitstream_trace_frame_start &&
+	    run.dst->sequence < bitstream_trace_frame_start + bitstream_trace_nframes)
+		visl_trace_bitstream(ctx, &run);
+
+	/* Complete request(s) controls if needed. */
+	if (src_req)
+		v4l2_ctrl_request_complete(src_req, &ctx->hdl);
+
+	if (visl_transtime_ms)
+		usleep_range(visl_transtime_ms * 1000, 2 * visl_transtime_ms * 1000);
+
+	v4l2_m2m_buf_done_and_job_finish(ctx->dev->m2m_dev,
+					 ctx->fh.m2m_ctx, VB2_BUF_STATE_DONE);
+}
diff --git a/drivers/media/test-drivers/visl/visl-dec.h b/drivers/media/test-drivers/visl/visl-dec.h
new file mode 100644
index 000000000..6e7562e55
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-dec.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Contains the virtual decoder logic. The functions here control the
+ * tracing/TPG on a per-frame basis
+ */
+
+#ifndef _VISL_DEC_H_
+#define _VISL_DEC_H_
+
+#include "linux/v4l2-controls.h"
+#include "visl.h"
+
+struct visl_fwht_run {
+	const struct v4l2_ctrl_fwht_params *params;
+};
+
+struct visl_mpeg2_run {
+	const struct v4l2_ctrl_mpeg2_sequence *seq;
+	const struct v4l2_ctrl_mpeg2_picture *pic;
+	const struct v4l2_ctrl_mpeg2_quantisation *quant;
+};
+
+struct visl_vp8_run {
+	const struct v4l2_ctrl_vp8_frame *frame;
+};
+
+struct visl_vp9_run {
+	const struct v4l2_ctrl_vp9_frame *frame;
+	const struct v4l2_ctrl_vp9_compressed_hdr *probs;
+};
+
+struct visl_h264_run {
+	const struct v4l2_ctrl_h264_sps *sps;
+	const struct v4l2_ctrl_h264_pps *pps;
+	const struct v4l2_ctrl_h264_scaling_matrix *sm;
+	const struct v4l2_ctrl_h264_slice_params *spram;
+	const struct v4l2_ctrl_h264_decode_params *dpram;
+	const struct v4l2_ctrl_h264_pred_weights *pwht;
+};
+
+struct visl_hevc_run {
+	const struct v4l2_ctrl_hevc_sps *sps;
+	const struct v4l2_ctrl_hevc_pps *pps;
+	const struct v4l2_ctrl_hevc_slice_params *spram;
+	const struct v4l2_ctrl_hevc_scaling_matrix *sm;
+	const struct v4l2_ctrl_hevc_decode_params *dpram;
+	const struct v4l2_ctrl_hevc_ext_sps_lt_rps *rps_lt;
+	const struct v4l2_ctrl_hevc_ext_sps_st_rps *rps_st;
+};
+
+struct visl_av1_run {
+	const struct v4l2_ctrl_av1_sequence *seq;
+	const struct v4l2_ctrl_av1_frame *frame;
+	const struct v4l2_ctrl_av1_tile_group_entry *tge;
+	const struct v4l2_ctrl_av1_film_grain *grain;
+};
+
+struct visl_run {
+	struct vb2_v4l2_buffer	*src;
+	struct vb2_v4l2_buffer	*dst;
+
+	union {
+		struct visl_fwht_run	fwht;
+		struct visl_mpeg2_run	mpeg2;
+		struct visl_vp8_run	vp8;
+		struct visl_vp9_run	vp9;
+		struct visl_h264_run	h264;
+		struct visl_hevc_run	hevc;
+		struct visl_av1_run	av1;
+	};
+};
+
+int visl_dec_start(struct visl_ctx *ctx);
+int visl_dec_stop(struct visl_ctx *ctx);
+int visl_job_ready(void *priv);
+void visl_device_run(void *priv);
+
+#endif /* _VISL_DEC_H_ */
diff --git a/drivers/media/test-drivers/visl/visl-trace-av1.h b/drivers/media/test-drivers/visl/visl-trace-av1.h
new file mode 100644
index 000000000..09f205de5
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-trace-av1.h
@@ -0,0 +1,314 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(_VISL_TRACE_AV1_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _VISL_TRACE_AV1_H_
+
+#include <linux/tracepoint.h>
+#include "visl.h"
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM visl_av1_controls
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_av1_seq_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_av1_sequence *s),
+	TP_ARGS(s),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_av1_sequence, s)),
+	TP_fast_assign(__entry->s = *s;),
+	TP_printk("\nflags %s\nseq_profile: %u\norder_hint_bits: %u\nbit_depth: %u\n"
+		  "max_frame_width_minus_1: %u\nmax_frame_height_minus_1: %u\n",
+		  __print_flags(__entry->s.flags, "|",
+		  {V4L2_AV1_SEQUENCE_FLAG_STILL_PICTURE, "STILL_PICTURE"},
+		  {V4L2_AV1_SEQUENCE_FLAG_USE_128X128_SUPERBLOCK, "USE_128X128_SUPERBLOCK"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_FILTER_INTRA, "ENABLE_FILTER_INTRA"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_INTRA_EDGE_FILTER, "ENABLE_INTRA_EDGE_FILTER"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_INTERINTRA_COMPOUND, "ENABLE_INTERINTRA_COMPOUND"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_MASKED_COMPOUND, "ENABLE_MASKED_COMPOUND"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_WARPED_MOTION, "ENABLE_WARPED_MOTION"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_DUAL_FILTER, "ENABLE_DUAL_FILTER"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_ORDER_HINT, "ENABLE_ORDER_HINT"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_JNT_COMP, "ENABLE_JNT_COMP"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_REF_FRAME_MVS, "ENABLE_REF_FRAME_MVS"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_SUPERRES, "ENABLE_SUPERRES"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_CDEF, "ENABLE_CDEF"},
+		  {V4L2_AV1_SEQUENCE_FLAG_ENABLE_RESTORATION, "ENABLE_RESTORATION"},
+		  {V4L2_AV1_SEQUENCE_FLAG_MONO_CHROME, "MONO_CHROME"},
+		  {V4L2_AV1_SEQUENCE_FLAG_COLOR_RANGE, "COLOR_RANGE"},
+		  {V4L2_AV1_SEQUENCE_FLAG_SUBSAMPLING_X, "SUBSAMPLING_X"},
+		  {V4L2_AV1_SEQUENCE_FLAG_SUBSAMPLING_Y, "SUBSAMPLING_Y"},
+		  {V4L2_AV1_SEQUENCE_FLAG_FILM_GRAIN_PARAMS_PRESENT, "FILM_GRAIN_PARAMS_PRESENT"},
+		  {V4L2_AV1_SEQUENCE_FLAG_SEPARATE_UV_DELTA_Q, "SEPARATE_UV_DELTA_Q"}),
+		  __entry->s.seq_profile,
+		  __entry->s.order_hint_bits,
+		  __entry->s.bit_depth,
+		  __entry->s.max_frame_width_minus_1,
+		  __entry->s.max_frame_height_minus_1
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_av1_tge_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_av1_tile_group_entry *t),
+	TP_ARGS(t),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_av1_tile_group_entry, t)),
+	TP_fast_assign(__entry->t = *t;),
+	TP_printk("\ntile_offset: %u\n tile_size: %u\n tile_row: %u\ntile_col: %u\n",
+		  __entry->t.tile_offset,
+		  __entry->t.tile_size,
+		  __entry->t.tile_row,
+		  __entry->t.tile_col
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_av1_frame_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_av1_frame *f),
+	TP_ARGS(f),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_av1_frame, f)),
+	TP_fast_assign(__entry->f = *f;),
+	TP_printk("\ntile_info.flags: %s\ntile_info.context_update_tile_id: %u\n"
+		  "tile_info.tile_cols: %u\ntile_info.tile_rows: %u\n"
+		  "tile_info.mi_col_starts: %s\ntile_info.mi_row_starts: %s\n"
+		  "tile_info.width_in_sbs_minus_1: %s\ntile_info.height_in_sbs_minus_1: %s\n"
+		  "tile_info.tile_size_bytes: %u\nquantization.flags: %s\n"
+		  "quantization.base_q_idx: %u\nquantization.delta_q_y_dc: %d\n"
+		  "quantization.delta_q_u_dc: %d\nquantization.delta_q_u_ac: %d\n"
+		  "quantization.delta_q_v_dc: %d\nquantization.delta_q_v_ac: %d\n"
+		  "quantization.qm_y: %u\nquantization.qm_u: %u\nquantization.qm_v: %u\n"
+		  "quantization.delta_q_res: %u\nsuperres_denom: %u\nsegmentation.flags: %s\n"
+		  "segmentation.last_active_seg_id: %u\nsegmentation.feature_enabled:%s\n"
+		  "loop_filter.flags: %s\nloop_filter.level: %s\nloop_filter.sharpness: %u\n"
+		  "loop_filter.ref_deltas: %s\nloop_filter.mode_deltas: %s\n"
+		  "loop_filter.delta_lf_res: %u\ncdef.damping_minus_3: %u\ncdef.bits: %u\n"
+		  "cdef.y_pri_strength: %s\ncdef.y_sec_strength: %s\n"
+		  "cdef.uv_pri_strength: %s\ncdef.uv_sec_strength:%s\nskip_mode_frame: %s\n"
+		  "primary_ref_frame: %u\nloop_restoration.flags: %s\n"
+		  "loop_restoration.lr_unit_shift: %u\nloop_restoration.lr_uv_shift: %u\n"
+		  "loop_restoration.frame_restoration_type: %s\n"
+		  "loop_restoration.loop_restoration_size: %s\nflags: %s\norder_hint: %u\n"
+		  "upscaled_width: %u\nframe_width_minus_1: %u\nframe_height_minus_1: %u\n"
+		  "render_width_minus_1: %u\nrender_height_minus_1: %u\ncurrent_frame_id: %u\n"
+		  "buffer_removal_time: %s\norder_hints: %s\nreference_frame_ts: %s\n"
+		  "ref_frame_idx: %s\nrefresh_frame_flags: %u\n",
+		  __print_flags(__entry->f.tile_info.flags, "|",
+		  {V4L2_AV1_TILE_INFO_FLAG_UNIFORM_TILE_SPACING, "UNIFORM_TILE_SPACING"}),
+		  __entry->f.tile_info.context_update_tile_id,
+		  __entry->f.tile_info.tile_cols,
+		  __entry->f.tile_info.tile_rows,
+		  __print_array(__entry->f.tile_info.mi_col_starts,
+				ARRAY_SIZE(__entry->f.tile_info.mi_col_starts),
+				sizeof(__entry->f.tile_info.mi_col_starts[0])),
+		  __print_array(__entry->f.tile_info.mi_row_starts,
+				ARRAY_SIZE(__entry->f.tile_info.mi_row_starts),
+				sizeof(__entry->f.tile_info.mi_row_starts[0])),
+		  __print_array(__entry->f.tile_info.width_in_sbs_minus_1,
+				ARRAY_SIZE(__entry->f.tile_info.width_in_sbs_minus_1),
+				sizeof(__entry->f.tile_info.width_in_sbs_minus_1[0])),
+		  __print_array(__entry->f.tile_info.height_in_sbs_minus_1,
+				ARRAY_SIZE(__entry->f.tile_info.height_in_sbs_minus_1),
+				sizeof(__entry->f.tile_info.height_in_sbs_minus_1[0])),
+		  __entry->f.tile_info.tile_size_bytes,
+		  __print_flags(__entry->f.quantization.flags, "|",
+		  {V4L2_AV1_QUANTIZATION_FLAG_DIFF_UV_DELTA, "DIFF_UV_DELTA"},
+		  {V4L2_AV1_QUANTIZATION_FLAG_USING_QMATRIX, "USING_QMATRIX"},
+		  {V4L2_AV1_QUANTIZATION_FLAG_DELTA_Q_PRESENT, "DELTA_Q_PRESENT"}),
+		  __entry->f.quantization.base_q_idx,
+		  __entry->f.quantization.delta_q_y_dc,
+		  __entry->f.quantization.delta_q_u_dc,
+		  __entry->f.quantization.delta_q_u_ac,
+		  __entry->f.quantization.delta_q_v_dc,
+		  __entry->f.quantization.delta_q_v_ac,
+		  __entry->f.quantization.qm_y,
+		  __entry->f.quantization.qm_u,
+		  __entry->f.quantization.qm_v,
+		  __entry->f.quantization.delta_q_res,
+		  __entry->f.superres_denom,
+		  __print_flags(__entry->f.segmentation.flags, "|",
+		  {V4L2_AV1_SEGMENTATION_FLAG_ENABLED, "ENABLED"},
+		  {V4L2_AV1_SEGMENTATION_FLAG_UPDATE_MAP, "UPDATE_MAP"},
+		  {V4L2_AV1_SEGMENTATION_FLAG_TEMPORAL_UPDATE, "TEMPORAL_UPDATE"},
+		  {V4L2_AV1_SEGMENTATION_FLAG_UPDATE_DATA, "UPDATE_DATA"},
+		  {V4L2_AV1_SEGMENTATION_FLAG_SEG_ID_PRE_SKIP, "SEG_ID_PRE_SKIP"}),
+		  __entry->f.segmentation.last_active_seg_id,
+		  __print_array(__entry->f.segmentation.feature_enabled,
+				ARRAY_SIZE(__entry->f.segmentation.feature_enabled),
+				sizeof(__entry->f.segmentation.feature_enabled[0])),
+		  __print_flags(__entry->f.loop_filter.flags, "|",
+		  {V4L2_AV1_LOOP_FILTER_FLAG_DELTA_ENABLED, "DELTA_ENABLED"},
+		  {V4L2_AV1_LOOP_FILTER_FLAG_DELTA_UPDATE, "DELTA_UPDATE"},
+		  {V4L2_AV1_LOOP_FILTER_FLAG_DELTA_LF_PRESENT, "DELTA_LF_PRESENT"},
+		  {V4L2_AV1_LOOP_FILTER_FLAG_DELTA_LF_MULTI, "DELTA_LF_MULTI"}),
+		  __print_array(__entry->f.loop_filter.level,
+				ARRAY_SIZE(__entry->f.loop_filter.level),
+				sizeof(__entry->f.loop_filter.level[0])),
+		  __entry->f.loop_filter.sharpness,
+		  __print_array(__entry->f.loop_filter.ref_deltas,
+				ARRAY_SIZE(__entry->f.loop_filter.ref_deltas),
+				sizeof(__entry->f.loop_filter.ref_deltas[0])),
+		  __print_array(__entry->f.loop_filter.mode_deltas,
+				ARRAY_SIZE(__entry->f.loop_filter.mode_deltas),
+				sizeof(__entry->f.loop_filter.mode_deltas[0])),
+		  __entry->f.loop_filter.delta_lf_res,
+		  __entry->f.cdef.damping_minus_3,
+		  __entry->f.cdef.bits,
+		  __print_array(__entry->f.cdef.y_pri_strength,
+				ARRAY_SIZE(__entry->f.cdef.y_pri_strength),
+				sizeof(__entry->f.cdef.y_pri_strength[0])),
+		  __print_array(__entry->f.cdef.y_sec_strength,
+				ARRAY_SIZE(__entry->f.cdef.y_sec_strength),
+				sizeof(__entry->f.cdef.y_sec_strength[0])),
+		  __print_array(__entry->f.cdef.uv_pri_strength,
+				ARRAY_SIZE(__entry->f.cdef.uv_pri_strength),
+				sizeof(__entry->f.cdef.uv_pri_strength[0])),
+		  __print_array(__entry->f.cdef.uv_sec_strength,
+				ARRAY_SIZE(__entry->f.cdef.uv_sec_strength),
+				sizeof(__entry->f.cdef.uv_sec_strength[0])),
+		  __print_array(__entry->f.skip_mode_frame,
+				ARRAY_SIZE(__entry->f.skip_mode_frame),
+				sizeof(__entry->f.skip_mode_frame[0])),
+		  __entry->f.primary_ref_frame,
+		  __print_flags(__entry->f.loop_restoration.flags, "|",
+		  {V4L2_AV1_LOOP_RESTORATION_FLAG_USES_LR, "USES_LR"},
+		  {V4L2_AV1_LOOP_RESTORATION_FLAG_USES_CHROMA_LR, "USES_CHROMA_LR"}),
+		  __entry->f.loop_restoration.lr_unit_shift,
+		  __entry->f.loop_restoration.lr_uv_shift,
+		  __print_array(__entry->f.loop_restoration.frame_restoration_type,
+				ARRAY_SIZE(__entry->f.loop_restoration.frame_restoration_type),
+				sizeof(__entry->f.loop_restoration.frame_restoration_type[0])),
+		  __print_array(__entry->f.loop_restoration.loop_restoration_size,
+				ARRAY_SIZE(__entry->f.loop_restoration.loop_restoration_size),
+				sizeof(__entry->f.loop_restoration.loop_restoration_size[0])),
+		  __print_flags(__entry->f.flags, "|",
+		  {V4L2_AV1_FRAME_FLAG_SHOW_FRAME, "SHOW_FRAME"},
+		  {V4L2_AV1_FRAME_FLAG_SHOWABLE_FRAME, "SHOWABLE_FRAME"},
+		  {V4L2_AV1_FRAME_FLAG_ERROR_RESILIENT_MODE, "ERROR_RESILIENT_MODE"},
+		  {V4L2_AV1_FRAME_FLAG_DISABLE_CDF_UPDATE, "DISABLE_CDF_UPDATE"},
+		  {V4L2_AV1_FRAME_FLAG_ALLOW_SCREEN_CONTENT_TOOLS, "ALLOW_SCREEN_CONTENT_TOOLS"},
+		  {V4L2_AV1_FRAME_FLAG_FORCE_INTEGER_MV, "FORCE_INTEGER_MV"},
+		  {V4L2_AV1_FRAME_FLAG_ALLOW_INTRABC, "ALLOW_INTRABC"},
+		  {V4L2_AV1_FRAME_FLAG_USE_SUPERRES, "USE_SUPERRES"},
+		  {V4L2_AV1_FRAME_FLAG_ALLOW_HIGH_PRECISION_MV, "ALLOW_HIGH_PRECISION_MV"},
+		  {V4L2_AV1_FRAME_FLAG_IS_MOTION_MODE_SWITCHABLE, "IS_MOTION_MODE_SWITCHABLE"},
+		  {V4L2_AV1_FRAME_FLAG_USE_REF_FRAME_MVS, "USE_REF_FRAME_MVS"},
+		  {V4L2_AV1_FRAME_FLAG_DISABLE_FRAME_END_UPDATE_CDF,
+		   "DISABLE_FRAME_END_UPDATE_CDF"},
+		  {V4L2_AV1_FRAME_FLAG_ALLOW_WARPED_MOTION, "ALLOW_WARPED_MOTION"},
+		  {V4L2_AV1_FRAME_FLAG_REFERENCE_SELECT, "REFERENCE_SELECT"},
+		  {V4L2_AV1_FRAME_FLAG_REDUCED_TX_SET, "REDUCED_TX_SET"},
+		  {V4L2_AV1_FRAME_FLAG_SKIP_MODE_ALLOWED, "SKIP_MODE_ALLOWED"},
+		  {V4L2_AV1_FRAME_FLAG_SKIP_MODE_PRESENT, "SKIP_MODE_PRESENT"},
+		  {V4L2_AV1_FRAME_FLAG_FRAME_SIZE_OVERRIDE, "FRAME_SIZE_OVERRIDE"},
+		  {V4L2_AV1_FRAME_FLAG_BUFFER_REMOVAL_TIME_PRESENT, "BUFFER_REMOVAL_TIME_PRESENT"},
+		  {V4L2_AV1_FRAME_FLAG_FRAME_REFS_SHORT_SIGNALING, "FRAME_REFS_SHORT_SIGNALING"}),
+		  __entry->f.order_hint,
+		  __entry->f.upscaled_width,
+		  __entry->f.frame_width_minus_1,
+		  __entry->f.frame_height_minus_1,
+		  __entry->f.render_width_minus_1,
+		  __entry->f.render_height_minus_1,
+		  __entry->f.current_frame_id,
+		  __print_array(__entry->f.buffer_removal_time,
+				ARRAY_SIZE(__entry->f.buffer_removal_time),
+				sizeof(__entry->f.buffer_removal_time[0])),
+		  __print_array(__entry->f.order_hints,
+				ARRAY_SIZE(__entry->f.order_hints),
+				sizeof(__entry->f.order_hints[0])),
+		  __print_array(__entry->f.reference_frame_ts,
+				ARRAY_SIZE(__entry->f.reference_frame_ts),
+				sizeof(__entry->f.reference_frame_ts[0])),
+		  __print_array(__entry->f.ref_frame_idx,
+				ARRAY_SIZE(__entry->f.ref_frame_idx),
+				sizeof(__entry->f.ref_frame_idx[0])),
+		  __entry->f.refresh_frame_flags
+	)
+);
+
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_av1_film_grain_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_av1_film_grain *f),
+	TP_ARGS(f),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_av1_film_grain, f)),
+	TP_fast_assign(__entry->f = *f;),
+	TP_printk("\nflags %s\ncr_mult: %u\ngrain_seed: %u\n"
+		  "film_grain_params_ref_idx: %u\nnum_y_points: %u\npoint_y_value: %s\n"
+		  "point_y_scaling: %s\nnum_cb_points: %u\npoint_cb_value: %s\n"
+		  "point_cb_scaling: %s\nnum_cr_points: %u\npoint_cr_value: %s\n"
+		  "point_cr_scaling: %s\ngrain_scaling_minus_8: %u\nar_coeff_lag: %u\n"
+		  "ar_coeffs_y_plus_128: %s\nar_coeffs_cb_plus_128: %s\n"
+		  "ar_coeffs_cr_plus_128: %s\nar_coeff_shift_minus_6: %u\n"
+		  "grain_scale_shift: %u\ncb_mult: %u\ncb_luma_mult: %u\ncr_luma_mult: %u\n"
+		  "cb_offset: %u\ncr_offset: %u\n",
+		  __print_flags(__entry->f.flags, "|",
+		  {V4L2_AV1_FILM_GRAIN_FLAG_APPLY_GRAIN, "APPLY_GRAIN"},
+		  {V4L2_AV1_FILM_GRAIN_FLAG_UPDATE_GRAIN, "UPDATE_GRAIN"},
+		  {V4L2_AV1_FILM_GRAIN_FLAG_CHROMA_SCALING_FROM_LUMA, "CHROMA_SCALING_FROM_LUMA"},
+		  {V4L2_AV1_FILM_GRAIN_FLAG_OVERLAP, "OVERLAP"},
+		  {V4L2_AV1_FILM_GRAIN_FLAG_CLIP_TO_RESTRICTED_RANGE, "CLIP_TO_RESTRICTED_RANGE"}),
+		  __entry->f.cr_mult,
+		  __entry->f.grain_seed,
+		  __entry->f.film_grain_params_ref_idx,
+		  __entry->f.num_y_points,
+		  __print_array(__entry->f.point_y_value,
+				ARRAY_SIZE(__entry->f.point_y_value),
+				sizeof(__entry->f.point_y_value[0])),
+		  __print_array(__entry->f.point_y_scaling,
+				ARRAY_SIZE(__entry->f.point_y_scaling),
+				sizeof(__entry->f.point_y_scaling[0])),
+		  __entry->f.num_cb_points,
+		  __print_array(__entry->f.point_cb_value,
+				ARRAY_SIZE(__entry->f.point_cb_value),
+				sizeof(__entry->f.point_cb_value[0])),
+		  __print_array(__entry->f.point_cb_scaling,
+				ARRAY_SIZE(__entry->f.point_cb_scaling),
+				sizeof(__entry->f.point_cb_scaling[0])),
+		  __entry->f.num_cr_points,
+		  __print_array(__entry->f.point_cr_value,
+				ARRAY_SIZE(__entry->f.point_cr_value),
+				sizeof(__entry->f.point_cr_value[0])),
+		  __print_array(__entry->f.point_cr_scaling,
+				ARRAY_SIZE(__entry->f.point_cr_scaling),
+				sizeof(__entry->f.point_cr_scaling[0])),
+		  __entry->f.grain_scaling_minus_8,
+		  __entry->f.ar_coeff_lag,
+		  __print_array(__entry->f.ar_coeffs_y_plus_128,
+				ARRAY_SIZE(__entry->f.ar_coeffs_y_plus_128),
+				sizeof(__entry->f.ar_coeffs_y_plus_128[0])),
+		  __print_array(__entry->f.ar_coeffs_cb_plus_128,
+				ARRAY_SIZE(__entry->f.ar_coeffs_cb_plus_128),
+				sizeof(__entry->f.ar_coeffs_cb_plus_128[0])),
+		  __print_array(__entry->f.ar_coeffs_cr_plus_128,
+				ARRAY_SIZE(__entry->f.ar_coeffs_cr_plus_128),
+				sizeof(__entry->f.ar_coeffs_cr_plus_128[0])),
+		  __entry->f.ar_coeff_shift_minus_6,
+		  __entry->f.grain_scale_shift,
+		  __entry->f.cb_mult,
+		  __entry->f.cb_luma_mult,
+		  __entry->f.cr_luma_mult,
+		  __entry->f.cb_offset,
+		  __entry->f.cr_offset
+	)
+)
+
+DEFINE_EVENT(v4l2_ctrl_av1_seq_tmpl, v4l2_ctrl_av1_sequence,
+	TP_PROTO(const struct v4l2_ctrl_av1_sequence *s),
+	TP_ARGS(s)
+);
+
+DEFINE_EVENT(v4l2_ctrl_av1_frame_tmpl, v4l2_ctrl_av1_frame,
+	TP_PROTO(const struct v4l2_ctrl_av1_frame *f),
+	TP_ARGS(f)
+);
+
+DEFINE_EVENT(v4l2_ctrl_av1_tge_tmpl, v4l2_ctrl_av1_tile_group_entry,
+	TP_PROTO(const struct v4l2_ctrl_av1_tile_group_entry *t),
+	TP_ARGS(t)
+);
+
+DEFINE_EVENT(v4l2_ctrl_av1_film_grain_tmpl, v4l2_ctrl_av1_film_grain,
+	TP_PROTO(const struct v4l2_ctrl_av1_film_grain *f),
+	TP_ARGS(f)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH ../../drivers/media/test-drivers/visl
+#define TRACE_INCLUDE_FILE visl-trace-av1
+#include <trace/define_trace.h>
diff --git a/drivers/media/test-drivers/visl/visl-trace-fwht.h b/drivers/media/test-drivers/visl/visl-trace-fwht.h
new file mode 100644
index 000000000..54b119359
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-trace-fwht.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(_VISL_TRACE_FWHT_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _VISL_TRACE_FWHT_H_
+
+#include <linux/tracepoint.h>
+#include "visl.h"
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM visl_fwht_controls
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_fwht_params_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_fwht_params *p),
+	TP_ARGS(p),
+	TP_STRUCT__entry(
+			 __field(u64, backward_ref_ts)
+			 __field(u32, version)
+			 __field(u32, width)
+			 __field(u32, height)
+			 __field(u32, flags)
+			 __field(u32, colorspace)
+			 __field(u32, xfer_func)
+			 __field(u32, ycbcr_enc)
+			 __field(u32, quantization)
+			 ),
+	TP_fast_assign(
+		       __entry->backward_ref_ts = p->backward_ref_ts;
+		       __entry->version = p->version;
+		       __entry->width = p->width;
+		       __entry->height = p->height;
+		       __entry->flags = p->flags;
+		       __entry->colorspace = p->colorspace;
+		       __entry->xfer_func = p->xfer_func;
+		       __entry->ycbcr_enc = p->ycbcr_enc;
+		       __entry->quantization = p->quantization;
+		       ),
+	TP_printk("backward_ref_ts %llu version %u width %u height %u flags %s colorspace %u xfer_func %u ycbcr_enc %u quantization %u",
+		  __entry->backward_ref_ts, __entry->version, __entry->width, __entry->height,
+		  __print_flags(__entry->flags, "|",
+		  {V4L2_FWHT_FL_IS_INTERLACED, "IS_INTERLACED"},
+		  {V4L2_FWHT_FL_IS_BOTTOM_FIRST, "IS_BOTTOM_FIRST"},
+		  {V4L2_FWHT_FL_IS_ALTERNATE, "IS_ALTERNATE"},
+		  {V4L2_FWHT_FL_IS_BOTTOM_FIELD, "IS_BOTTOM_FIELD"},
+		  {V4L2_FWHT_FL_LUMA_IS_UNCOMPRESSED, "LUMA_IS_UNCOMPRESSED"},
+		  {V4L2_FWHT_FL_CB_IS_UNCOMPRESSED, "CB_IS_UNCOMPRESSED"},
+		  {V4L2_FWHT_FL_CR_IS_UNCOMPRESSED, "CR_IS_UNCOMPRESSED"},
+		  {V4L2_FWHT_FL_ALPHA_IS_UNCOMPRESSED, "ALPHA_IS_UNCOMPRESSED"},
+		  {V4L2_FWHT_FL_I_FRAME, "I_FRAME"},
+		  {V4L2_FWHT_FL_PIXENC_HSV, "PIXENC_HSV"},
+		  {V4L2_FWHT_FL_PIXENC_RGB, "PIXENC_RGB"},
+		  {V4L2_FWHT_FL_PIXENC_YUV, "PIXENC_YUV"}),
+		  __entry->colorspace, __entry->xfer_func, __entry->ycbcr_enc,
+		  __entry->quantization)
+);
+
+DEFINE_EVENT(v4l2_ctrl_fwht_params_tmpl, v4l2_ctrl_fwht_params,
+	TP_PROTO(const struct v4l2_ctrl_fwht_params *p),
+	TP_ARGS(p)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH ../../drivers/media/test-drivers/visl
+#define TRACE_INCLUDE_FILE visl-trace-fwht
+#include <trace/define_trace.h>
diff --git a/drivers/media/test-drivers/visl/visl-trace-h264.h b/drivers/media/test-drivers/visl/visl-trace-h264.h
new file mode 100644
index 000000000..d84296a01
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-trace-h264.h
@@ -0,0 +1,349 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(_VISL_TRACE_H264_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _VISL_TRACE_H264_H_
+
+#include <linux/tracepoint.h>
+#include "visl.h"
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM visl_h264_controls
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_h264_sps_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_h264_sps *s),
+	TP_ARGS(s),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_h264_sps, s)),
+	TP_fast_assign(__entry->s = *s),
+	TP_printk("\nprofile_idc %u\n"
+		  "constraint_set_flags %s\n"
+		  "level_idc %u\n"
+		  "seq_parameter_set_id %u\n"
+		  "chroma_format_idc %u\n"
+		  "bit_depth_luma_minus8 %u\n"
+		  "bit_depth_chroma_minus8 %u\n"
+		  "log2_max_frame_num_minus4 %u\n"
+		  "pic_order_cnt_type %u\n"
+		  "log2_max_pic_order_cnt_lsb_minus4 %u\n"
+		  "max_num_ref_frames %u\n"
+		  "num_ref_frames_in_pic_order_cnt_cycle %u\n"
+		  "offset_for_ref_frame %s\n"
+		  "offset_for_non_ref_pic %d\n"
+		  "offset_for_top_to_bottom_field %d\n"
+		  "pic_width_in_mbs_minus1 %u\n"
+		  "pic_height_in_map_units_minus1 %u\n"
+		  "flags %s",
+		  __entry->s.profile_idc,
+		  __print_flags(__entry->s.constraint_set_flags, "|",
+		  {V4L2_H264_SPS_CONSTRAINT_SET0_FLAG, "CONSTRAINT_SET0_FLAG"},
+		  {V4L2_H264_SPS_CONSTRAINT_SET1_FLAG, "CONSTRAINT_SET1_FLAG"},
+		  {V4L2_H264_SPS_CONSTRAINT_SET2_FLAG, "CONSTRAINT_SET2_FLAG"},
+		  {V4L2_H264_SPS_CONSTRAINT_SET3_FLAG, "CONSTRAINT_SET3_FLAG"},
+		  {V4L2_H264_SPS_CONSTRAINT_SET4_FLAG, "CONSTRAINT_SET4_FLAG"},
+		  {V4L2_H264_SPS_CONSTRAINT_SET5_FLAG, "CONSTRAINT_SET5_FLAG"}),
+		  __entry->s.level_idc,
+		  __entry->s.seq_parameter_set_id,
+		  __entry->s.chroma_format_idc,
+		  __entry->s.bit_depth_luma_minus8,
+		  __entry->s.bit_depth_chroma_minus8,
+		  __entry->s.log2_max_frame_num_minus4,
+		  __entry->s.pic_order_cnt_type,
+		  __entry->s.log2_max_pic_order_cnt_lsb_minus4,
+		  __entry->s.max_num_ref_frames,
+		  __entry->s.num_ref_frames_in_pic_order_cnt_cycle,
+		  __print_array(__entry->s.offset_for_ref_frame,
+				ARRAY_SIZE(__entry->s.offset_for_ref_frame),
+				sizeof(__entry->s.offset_for_ref_frame[0])),
+		  __entry->s.offset_for_non_ref_pic,
+		  __entry->s.offset_for_top_to_bottom_field,
+		  __entry->s.pic_width_in_mbs_minus1,
+		  __entry->s.pic_height_in_map_units_minus1,
+		  __print_flags(__entry->s.flags, "|",
+		  {V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE, "SEPARATE_COLOUR_PLANE"},
+		  {V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS, "QPPRIME_Y_ZERO_TRANSFORM_BYPASS"},
+		  {V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO, "DELTA_PIC_ORDER_ALWAYS_ZERO"},
+		  {V4L2_H264_SPS_FLAG_GAPS_IN_FRAME_NUM_VALUE_ALLOWED, "GAPS_IN_FRAME_NUM_VALUE_ALLOWED"},
+		  {V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY, "FRAME_MBS_ONLY"},
+		  {V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD, "MB_ADAPTIVE_FRAME_FIELD"},
+		  {V4L2_H264_SPS_FLAG_DIRECT_8X8_INFERENCE, "DIRECT_8X8_INFERENCE"}
+		  ))
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_h264_pps_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_h264_pps *p),
+	TP_ARGS(p),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_h264_pps, p)),
+	TP_fast_assign(__entry->p = *p),
+	TP_printk("\npic_parameter_set_id %u\n"
+		  "seq_parameter_set_id %u\n"
+		  "num_slice_groups_minus1 %u\n"
+		  "num_ref_idx_l0_default_active_minus1 %u\n"
+		  "num_ref_idx_l1_default_active_minus1 %u\n"
+		  "weighted_bipred_idc %u\n"
+		  "pic_init_qp_minus26 %d\n"
+		  "pic_init_qs_minus26 %d\n"
+		  "chroma_qp_index_offset %d\n"
+		  "second_chroma_qp_index_offset %d\n"
+		  "flags %s",
+		  __entry->p.pic_parameter_set_id,
+		  __entry->p.seq_parameter_set_id,
+		  __entry->p.num_slice_groups_minus1,
+		  __entry->p.num_ref_idx_l0_default_active_minus1,
+		  __entry->p.num_ref_idx_l1_default_active_minus1,
+		  __entry->p.weighted_bipred_idc,
+		  __entry->p.pic_init_qp_minus26,
+		  __entry->p.pic_init_qs_minus26,
+		  __entry->p.chroma_qp_index_offset,
+		  __entry->p.second_chroma_qp_index_offset,
+		  __print_flags(__entry->p.flags, "|",
+		  {V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE, "ENTROPY_CODING_MODE"},
+		  {V4L2_H264_PPS_FLAG_BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT, "BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT"},
+		  {V4L2_H264_PPS_FLAG_WEIGHTED_PRED, "WEIGHTED_PRED"},
+		  {V4L2_H264_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT, "DEBLOCKING_FILTER_CONTROL_PRESENT"},
+		  {V4L2_H264_PPS_FLAG_CONSTRAINED_INTRA_PRED, "CONSTRAINED_INTRA_PRED"},
+		  {V4L2_H264_PPS_FLAG_REDUNDANT_PIC_CNT_PRESENT, "REDUNDANT_PIC_CNT_PRESENT"},
+		  {V4L2_H264_PPS_FLAG_TRANSFORM_8X8_MODE, "TRANSFORM_8X8_MODE"},
+		  {V4L2_H264_PPS_FLAG_SCALING_MATRIX_PRESENT, "SCALING_MATRIX_PRESENT"}
+		  ))
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_h264_scaling_matrix_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_h264_scaling_matrix *s),
+	TP_ARGS(s),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_h264_scaling_matrix, s)),
+	TP_fast_assign(__entry->s = *s),
+	TP_printk("\nscaling_list_4x4 {%s}\nscaling_list_8x8 {%s}",
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->s.scaling_list_4x4,
+				   sizeof(__entry->s.scaling_list_4x4),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->s.scaling_list_8x8,
+				   sizeof(__entry->s.scaling_list_8x8),
+				   false)
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_h264_pred_weights_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_h264_pred_weights *p),
+	TP_ARGS(p),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_h264_pred_weights, p)),
+	TP_fast_assign(__entry->p = *p),
+	TP_printk("\nluma_log2_weight_denom %u\n"
+		  "chroma_log2_weight_denom %u\n"
+		  "weight_factor[0].luma_weight %s\n"
+		  "weight_factor[0].luma_offset %s\n"
+		  "weight_factor[0].chroma_weight {%s}\n"
+		  "weight_factor[0].chroma_offset {%s}\n"
+		  "weight_factor[1].luma_weight %s\n"
+		  "weight_factor[1].luma_offset %s\n"
+		  "weight_factor[1].chroma_weight {%s}\n"
+		  "weight_factor[1].chroma_offset {%s}\n",
+		  __entry->p.luma_log2_weight_denom,
+		  __entry->p.chroma_log2_weight_denom,
+		  __print_array(__entry->p.weight_factors[0].luma_weight,
+				ARRAY_SIZE(__entry->p.weight_factors[0].luma_weight),
+				sizeof(__entry->p.weight_factors[0].luma_weight[0])),
+		  __print_array(__entry->p.weight_factors[0].luma_offset,
+				ARRAY_SIZE(__entry->p.weight_factors[0].luma_offset),
+				sizeof(__entry->p.weight_factors[0].luma_offset[0])),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.weight_factors[0].chroma_weight,
+				   sizeof(__entry->p.weight_factors[0].chroma_weight),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.weight_factors[0].chroma_offset,
+				   sizeof(__entry->p.weight_factors[0].chroma_offset),
+				   false),
+		  __print_array(__entry->p.weight_factors[1].luma_weight,
+				ARRAY_SIZE(__entry->p.weight_factors[1].luma_weight),
+				sizeof(__entry->p.weight_factors[1].luma_weight[0])),
+		  __print_array(__entry->p.weight_factors[1].luma_offset,
+				ARRAY_SIZE(__entry->p.weight_factors[1].luma_offset),
+				sizeof(__entry->p.weight_factors[1].luma_offset[0])),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.weight_factors[1].chroma_weight,
+				   sizeof(__entry->p.weight_factors[1].chroma_weight),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.weight_factors[1].chroma_offset,
+				   sizeof(__entry->p.weight_factors[1].chroma_offset),
+				   false)
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_h264_slice_params_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_h264_slice_params *s),
+	TP_ARGS(s),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_h264_slice_params, s)),
+	TP_fast_assign(__entry->s = *s),
+	TP_printk("\nheader_bit_size %u\n"
+		  "first_mb_in_slice %u\n"
+		  "slice_type %s\n"
+		  "colour_plane_id %u\n"
+		  "redundant_pic_cnt %u\n"
+		  "cabac_init_idc %u\n"
+		  "slice_qp_delta %d\n"
+		  "slice_qs_delta %d\n"
+		  "disable_deblocking_filter_idc %u\n"
+		  "slice_alpha_c0_offset_div2 %u\n"
+		  "slice_beta_offset_div2 %u\n"
+		  "num_ref_idx_l0_active_minus1 %u\n"
+		  "num_ref_idx_l1_active_minus1 %u\n"
+		  "flags %s",
+		  __entry->s.header_bit_size,
+		  __entry->s.first_mb_in_slice,
+		  __print_symbolic(__entry->s.slice_type,
+		  {V4L2_H264_SLICE_TYPE_P, "P"},
+		  {V4L2_H264_SLICE_TYPE_B, "B"},
+		  {V4L2_H264_SLICE_TYPE_I, "I"},
+		  {V4L2_H264_SLICE_TYPE_SP, "SP"},
+		  {V4L2_H264_SLICE_TYPE_SI, "SI"}),
+		  __entry->s.colour_plane_id,
+		  __entry->s.redundant_pic_cnt,
+		  __entry->s.cabac_init_idc,
+		  __entry->s.slice_qp_delta,
+		  __entry->s.slice_qs_delta,
+		  __entry->s.disable_deblocking_filter_idc,
+		  __entry->s.slice_alpha_c0_offset_div2,
+		  __entry->s.slice_beta_offset_div2,
+		  __entry->s.num_ref_idx_l0_active_minus1,
+		  __entry->s.num_ref_idx_l1_active_minus1,
+		  __print_flags(__entry->s.flags, "|",
+		  {V4L2_H264_SLICE_FLAG_DIRECT_SPATIAL_MV_PRED, "DIRECT_SPATIAL_MV_PRED"},
+		  {V4L2_H264_SLICE_FLAG_SP_FOR_SWITCH, "SP_FOR_SWITCH"})
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_h264_reference_tmpl,
+	TP_PROTO(const struct v4l2_h264_reference *r, int i),
+	TP_ARGS(r, i),
+	TP_STRUCT__entry(__field_struct(struct v4l2_h264_reference, r)
+			 __field(int, i)),
+	TP_fast_assign(__entry->r = *r; __entry->i = i;),
+	TP_printk("[%d]: fields %s index %u",
+		  __entry->i,
+		  __print_flags(__entry->r.fields, "|",
+		  {V4L2_H264_TOP_FIELD_REF, "TOP_FIELD_REF"},
+		  {V4L2_H264_BOTTOM_FIELD_REF, "BOTTOM_FIELD_REF"},
+		  {V4L2_H264_FRAME_REF, "FRAME_REF"}),
+		  __entry->r.index
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_h264_decode_params_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_h264_decode_params *d),
+	TP_ARGS(d),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_h264_decode_params, d)),
+	TP_fast_assign(__entry->d = *d),
+	TP_printk("\nnal_ref_idc %u\n"
+		  "frame_num %u\n"
+		  "top_field_order_cnt %d\n"
+		  "bottom_field_order_cnt %d\n"
+		  "idr_pic_id %u\n"
+		  "pic_order_cnt_lsb %u\n"
+		  "delta_pic_order_cnt_bottom %d\n"
+		  "delta_pic_order_cnt0 %d\n"
+		  "delta_pic_order_cnt1 %d\n"
+		  "dec_ref_pic_marking_bit_size %u\n"
+		  "pic_order_cnt_bit_size %u\n"
+		  "slice_group_change_cycle %u\n"
+		  "flags %s\n",
+		  __entry->d.nal_ref_idc,
+		  __entry->d.frame_num,
+		  __entry->d.top_field_order_cnt,
+		  __entry->d.bottom_field_order_cnt,
+		  __entry->d.idr_pic_id,
+		  __entry->d.pic_order_cnt_lsb,
+		  __entry->d.delta_pic_order_cnt_bottom,
+		  __entry->d.delta_pic_order_cnt0,
+		  __entry->d.delta_pic_order_cnt1,
+		  __entry->d.dec_ref_pic_marking_bit_size,
+		  __entry->d.pic_order_cnt_bit_size,
+		  __entry->d.slice_group_change_cycle,
+		  __print_flags(__entry->d.flags, "|",
+		  {V4L2_H264_DECODE_PARAM_FLAG_IDR_PIC, "IDR_PIC"},
+		  {V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC, "FIELD_PIC"},
+		  {V4L2_H264_DECODE_PARAM_FLAG_BOTTOM_FIELD, "BOTTOM_FIELD"},
+		  {V4L2_H264_DECODE_PARAM_FLAG_PFRAME, "PFRAME"},
+		  {V4L2_H264_DECODE_PARAM_FLAG_BFRAME, "BFRAME"})
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_h264_dpb_entry_tmpl,
+	TP_PROTO(const struct v4l2_h264_dpb_entry *e, int i),
+	TP_ARGS(e, i),
+	TP_STRUCT__entry(__field_struct(struct v4l2_h264_dpb_entry, e)
+			 __field(int, i)),
+	TP_fast_assign(__entry->e = *e; __entry->i = i;),
+	TP_printk("[%d]: reference_ts %llu, pic_num %u frame_num %u fields %s "
+		  "top_field_order_cnt %d bottom_field_order_cnt %d flags %s",
+		  __entry->i,
+		  __entry->e.reference_ts,
+		  __entry->e.pic_num,
+		  __entry->e.frame_num,
+		  __print_flags(__entry->e.fields, "|",
+		  {V4L2_H264_TOP_FIELD_REF, "TOP_FIELD_REF"},
+		  {V4L2_H264_BOTTOM_FIELD_REF, "BOTTOM_FIELD_REF"},
+		  {V4L2_H264_FRAME_REF, "FRAME_REF"}),
+		  __entry->e.top_field_order_cnt,
+		  __entry->e.bottom_field_order_cnt,
+		  __print_flags(__entry->e.flags, "|",
+		  {V4L2_H264_DPB_ENTRY_FLAG_VALID, "VALID"},
+		  {V4L2_H264_DPB_ENTRY_FLAG_ACTIVE, "ACTIVE"},
+		  {V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM, "LONG_TERM"},
+		  {V4L2_H264_DPB_ENTRY_FLAG_FIELD, "FIELD"})
+
+	)
+);
+
+DEFINE_EVENT(v4l2_ctrl_h264_sps_tmpl, v4l2_ctrl_h264_sps,
+	TP_PROTO(const struct v4l2_ctrl_h264_sps *s),
+	TP_ARGS(s)
+);
+
+DEFINE_EVENT(v4l2_ctrl_h264_pps_tmpl, v4l2_ctrl_h264_pps,
+	TP_PROTO(const struct v4l2_ctrl_h264_pps *p),
+	TP_ARGS(p)
+);
+
+DEFINE_EVENT(v4l2_ctrl_h264_scaling_matrix_tmpl, v4l2_ctrl_h264_scaling_matrix,
+	TP_PROTO(const struct v4l2_ctrl_h264_scaling_matrix *s),
+	TP_ARGS(s)
+);
+
+DEFINE_EVENT(v4l2_ctrl_h264_pred_weights_tmpl, v4l2_ctrl_h264_pred_weights,
+	TP_PROTO(const struct v4l2_ctrl_h264_pred_weights *p),
+	TP_ARGS(p)
+);
+
+DEFINE_EVENT(v4l2_ctrl_h264_slice_params_tmpl, v4l2_ctrl_h264_slice_params,
+	TP_PROTO(const struct v4l2_ctrl_h264_slice_params *s),
+	TP_ARGS(s)
+);
+
+DEFINE_EVENT(v4l2_h264_reference_tmpl, v4l2_h264_ref_pic_list0,
+	TP_PROTO(const struct v4l2_h264_reference *r, int i),
+	TP_ARGS(r, i)
+);
+
+DEFINE_EVENT(v4l2_h264_reference_tmpl, v4l2_h264_ref_pic_list1,
+	TP_PROTO(const struct v4l2_h264_reference *r, int i),
+	TP_ARGS(r, i)
+);
+
+DEFINE_EVENT(v4l2_ctrl_h264_decode_params_tmpl, v4l2_ctrl_h264_decode_params,
+	TP_PROTO(const struct v4l2_ctrl_h264_decode_params *d),
+	TP_ARGS(d)
+);
+
+DEFINE_EVENT(v4l2_h264_dpb_entry_tmpl, v4l2_h264_dpb_entry,
+	TP_PROTO(const struct v4l2_h264_dpb_entry *e, int i),
+	TP_ARGS(e, i)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH ../../drivers/media/test-drivers/visl
+#define TRACE_INCLUDE_FILE visl-trace-h264
+#include <trace/define_trace.h>
diff --git a/drivers/media/test-drivers/visl/visl-trace-hevc.h b/drivers/media/test-drivers/visl/visl-trace-hevc.h
new file mode 100644
index 000000000..963914c46
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-trace-hevc.h
@@ -0,0 +1,464 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+#include "linux/v4l2-controls.h"
+#if !defined(_VISL_TRACE_HEVC_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _VISL_TRACE_HEVC_H_
+
+#include <linux/tracepoint.h>
+#include "visl.h"
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM visl_hevc_controls
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_hevc_sps_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_hevc_sps *s),
+	TP_ARGS(s),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_hevc_sps, s)),
+	TP_fast_assign(__entry->s = *s),
+	TP_printk("\nvideo_parameter_set_id %u\n"
+		  "seq_parameter_set_id %u\n"
+		  "pic_width_in_luma_samples %u\n"
+		  "pic_height_in_luma_samples %u\n"
+		  "bit_depth_luma_minus8 %u\n"
+		  "bit_depth_chroma_minus8 %u\n"
+		  "log2_max_pic_order_cnt_lsb_minus4 %u\n"
+		  "sps_max_dec_pic_buffering_minus1 %u\n"
+		  "sps_max_num_reorder_pics %u\n"
+		  "sps_max_latency_increase_plus1 %u\n"
+		  "log2_min_luma_coding_block_size_minus3 %u\n"
+		  "log2_diff_max_min_luma_coding_block_size %u\n"
+		  "log2_min_luma_transform_block_size_minus2 %u\n"
+		  "log2_diff_max_min_luma_transform_block_size %u\n"
+		  "max_transform_hierarchy_depth_inter %u\n"
+		  "max_transform_hierarchy_depth_intra %u\n"
+		  "pcm_sample_bit_depth_luma_minus1 %u\n"
+		  "pcm_sample_bit_depth_chroma_minus1 %u\n"
+		  "log2_min_pcm_luma_coding_block_size_minus3 %u\n"
+		  "log2_diff_max_min_pcm_luma_coding_block_size %u\n"
+		  "num_short_term_ref_pic_sets %u\n"
+		  "num_long_term_ref_pics_sps %u\n"
+		  "chroma_format_idc %u\n"
+		  "sps_max_sub_layers_minus1 %u\n"
+		  "flags %s",
+		  __entry->s.video_parameter_set_id,
+		  __entry->s.seq_parameter_set_id,
+		  __entry->s.pic_width_in_luma_samples,
+		  __entry->s.pic_height_in_luma_samples,
+		  __entry->s.bit_depth_luma_minus8,
+		  __entry->s.bit_depth_chroma_minus8,
+		  __entry->s.log2_max_pic_order_cnt_lsb_minus4,
+		  __entry->s.sps_max_dec_pic_buffering_minus1,
+		  __entry->s.sps_max_num_reorder_pics,
+		  __entry->s.sps_max_latency_increase_plus1,
+		  __entry->s.log2_min_luma_coding_block_size_minus3,
+		  __entry->s.log2_diff_max_min_luma_coding_block_size,
+		  __entry->s.log2_min_luma_transform_block_size_minus2,
+		  __entry->s.log2_diff_max_min_luma_transform_block_size,
+		  __entry->s.max_transform_hierarchy_depth_inter,
+		  __entry->s.max_transform_hierarchy_depth_intra,
+		  __entry->s.pcm_sample_bit_depth_luma_minus1,
+		  __entry->s.pcm_sample_bit_depth_chroma_minus1,
+		  __entry->s.log2_min_pcm_luma_coding_block_size_minus3,
+		  __entry->s.log2_diff_max_min_pcm_luma_coding_block_size,
+		  __entry->s.num_short_term_ref_pic_sets,
+		  __entry->s.num_long_term_ref_pics_sps,
+		  __entry->s.chroma_format_idc,
+		  __entry->s.sps_max_sub_layers_minus1,
+		  __print_flags(__entry->s.flags, "|",
+		  {V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE, "SEPARATE_COLOUR_PLANE"},
+		  {V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED, "SCALING_LIST_ENABLED"},
+		  {V4L2_HEVC_SPS_FLAG_AMP_ENABLED, "AMP_ENABLED"},
+		  {V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET, "SAMPLE_ADAPTIVE_OFFSET"},
+		  {V4L2_HEVC_SPS_FLAG_PCM_ENABLED, "PCM_ENABLED"},
+		  {V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED, "V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED"},
+		  {V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT, "LONG_TERM_REF_PICS_PRESENT"},
+		  {V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED, "TEMPORAL_MVP_ENABLED"},
+		  {V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED, "STRONG_INTRA_SMOOTHING_ENABLED"}
+	))
+
+);
+
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_hevc_pps_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_hevc_pps *p),
+	TP_ARGS(p),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_hevc_pps, p)),
+	TP_fast_assign(__entry->p = *p),
+	TP_printk("\npic_parameter_set_id %u\n"
+		  "num_extra_slice_header_bits %u\n"
+		  "num_ref_idx_l0_default_active_minus1 %u\n"
+		  "num_ref_idx_l1_default_active_minus1 %u\n"
+		  "init_qp_minus26 %d\n"
+		  "diff_cu_qp_delta_depth %u\n"
+		  "pps_cb_qp_offset %d\n"
+		  "pps_cr_qp_offset %d\n"
+		  "num_tile_columns_minus1 %d\n"
+		  "num_tile_rows_minus1 %d\n"
+		  "column_width_minus1 %s\n"
+		  "row_height_minus1 %s\n"
+		  "pps_beta_offset_div2 %d\n"
+		  "pps_tc_offset_div2 %d\n"
+		  "log2_parallel_merge_level_minus2 %u\n"
+		  "flags %s",
+		  __entry->p.pic_parameter_set_id,
+		  __entry->p.num_extra_slice_header_bits,
+		  __entry->p.num_ref_idx_l0_default_active_minus1,
+		  __entry->p.num_ref_idx_l1_default_active_minus1,
+		  __entry->p.init_qp_minus26,
+		  __entry->p.diff_cu_qp_delta_depth,
+		  __entry->p.pps_cb_qp_offset,
+		  __entry->p.pps_cr_qp_offset,
+		  __entry->p.num_tile_columns_minus1,
+		  __entry->p.num_tile_rows_minus1,
+		  __print_array(__entry->p.column_width_minus1,
+				ARRAY_SIZE(__entry->p.column_width_minus1),
+				sizeof(__entry->p.column_width_minus1[0])),
+		  __print_array(__entry->p.row_height_minus1,
+				ARRAY_SIZE(__entry->p.row_height_minus1),
+				sizeof(__entry->p.row_height_minus1[0])),
+		  __entry->p.pps_beta_offset_div2,
+		  __entry->p.pps_tc_offset_div2,
+		  __entry->p.log2_parallel_merge_level_minus2,
+		  __print_flags(__entry->p.flags, "|",
+		  {V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED, "DEPENDENT_SLICE_SEGMENT_ENABLED"},
+		  {V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT, "OUTPUT_FLAG_PRESENT"},
+		  {V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED, "SIGN_DATA_HIDING_ENABLED"},
+		  {V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT, "CABAC_INIT_PRESENT"},
+		  {V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED, "CONSTRAINED_INTRA_PRED"},
+		  {V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED, "CU_QP_DELTA_ENABLED"},
+		  {V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT, "PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT"},
+		  {V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED, "WEIGHTED_PRED"},
+		  {V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED, "WEIGHTED_BIPRED"},
+		  {V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED, "TRANSQUANT_BYPASS_ENABLED"},
+		  {V4L2_HEVC_PPS_FLAG_TILES_ENABLED, "TILES_ENABLED"},
+		  {V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED, "ENTROPY_CODING_SYNC_ENABLED"},
+		  {V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED, "LOOP_FILTER_ACROSS_TILES_ENABLED"},
+		  {V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED, "PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED"},
+		  {V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED, "DEBLOCKING_FILTER_OVERRIDE_ENABLED"},
+		  {V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER, "DISABLE_DEBLOCKING_FILTER"},
+		  {V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT, "LISTS_MODIFICATION_PRESENT"},
+		  {V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT, "SLICE_SEGMENT_HEADER_EXTENSION_PRESENT"},
+		  {V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT, "DEBLOCKING_FILTER_CONTROL_PRESENT"},
+		  {V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING, "UNIFORM_SPACING"}
+	))
+
+);
+
+
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_hevc_slice_params_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_hevc_slice_params *s),
+	TP_ARGS(s),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_hevc_slice_params, s)),
+	TP_fast_assign(__entry->s = *s),
+	TP_printk("\nbit_size %u\n"
+		  "data_byte_offset %u\n"
+		  "num_entry_point_offsets %u\n"
+		  "nal_unit_type %u\n"
+		  "nuh_temporal_id_plus1 %u\n"
+		  "slice_type %u\n"
+		  "colour_plane_id %u\n"
+		  "slice_pic_order_cnt %d\n"
+		  "num_ref_idx_l0_active_minus1 %u\n"
+		  "num_ref_idx_l1_active_minus1 %u\n"
+		  "collocated_ref_idx %u\n"
+		  "five_minus_max_num_merge_cand %u\n"
+		  "slice_qp_delta %d\n"
+		  "slice_cb_qp_offset %d\n"
+		  "slice_cr_qp_offset %d\n"
+		  "slice_act_y_qp_offset %d\n"
+		  "slice_act_cb_qp_offset %d\n"
+		  "slice_act_cr_qp_offset %d\n"
+		  "slice_beta_offset_div2 %d\n"
+		  "slice_tc_offset_div2 %d\n"
+		  "pic_struct %u\n"
+		  "slice_segment_addr %u\n"
+		  "ref_idx_l0 %s\n"
+		  "ref_idx_l1 %s\n"
+		  "short_term_ref_pic_set_size %u\n"
+		  "long_term_ref_pic_set_size %u\n"
+		  "flags %s",
+		  __entry->s.bit_size,
+		  __entry->s.data_byte_offset,
+		  __entry->s.num_entry_point_offsets,
+		  __entry->s.nal_unit_type,
+		  __entry->s.nuh_temporal_id_plus1,
+		  __entry->s.slice_type,
+		  __entry->s.colour_plane_id,
+		  __entry->s.slice_pic_order_cnt,
+		  __entry->s.num_ref_idx_l0_active_minus1,
+		  __entry->s.num_ref_idx_l1_active_minus1,
+		  __entry->s.collocated_ref_idx,
+		  __entry->s.five_minus_max_num_merge_cand,
+		  __entry->s.slice_qp_delta,
+		  __entry->s.slice_cb_qp_offset,
+		  __entry->s.slice_cr_qp_offset,
+		  __entry->s.slice_act_y_qp_offset,
+		  __entry->s.slice_act_cb_qp_offset,
+		  __entry->s.slice_act_cr_qp_offset,
+		  __entry->s.slice_beta_offset_div2,
+		  __entry->s.slice_tc_offset_div2,
+		  __entry->s.pic_struct,
+		  __entry->s.slice_segment_addr,
+		  __print_array(__entry->s.ref_idx_l0,
+				ARRAY_SIZE(__entry->s.ref_idx_l0),
+				sizeof(__entry->s.ref_idx_l0[0])),
+		  __print_array(__entry->s.ref_idx_l1,
+				ARRAY_SIZE(__entry->s.ref_idx_l1),
+				sizeof(__entry->s.ref_idx_l1[0])),
+		  __entry->s.short_term_ref_pic_set_size,
+		  __entry->s.long_term_ref_pic_set_size,
+		  __print_flags(__entry->s.flags, "|",
+		  {V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA, "SLICE_SAO_LUMA"},
+		  {V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA, "SLICE_SAO_CHROMA"},
+		  {V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED, "SLICE_TEMPORAL_MVP_ENABLED"},
+		  {V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO, "MVD_L1_ZERO"},
+		  {V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT, "CABAC_INIT"},
+		  {V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0, "COLLOCATED_FROM_L0"},
+		  {V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV, "USE_INTEGER_MV"},
+		  {V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED, "SLICE_DEBLOCKING_FILTER_DISABLED"},
+		  {V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED, "SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED"},
+		  {V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT, "DEPENDENT_SLICE_SEGMENT"}
+
+	))
+);
+
+DECLARE_EVENT_CLASS(v4l2_hevc_pred_weight_table_tmpl,
+	TP_PROTO(const struct v4l2_hevc_pred_weight_table *p),
+	TP_ARGS(p),
+	TP_STRUCT__entry(__field_struct(struct v4l2_hevc_pred_weight_table, p)),
+	TP_fast_assign(__entry->p = *p),
+	TP_printk("\ndelta_luma_weight_l0 %s\n"
+		  "luma_offset_l0 %s\n"
+		  "delta_chroma_weight_l0 {%s}\n"
+		  "chroma_offset_l0 {%s}\n"
+		  "delta_luma_weight_l1 %s\n"
+		  "luma_offset_l1 %s\n"
+		  "delta_chroma_weight_l1 {%s}\n"
+		  "chroma_offset_l1 {%s}\n"
+		  "luma_log2_weight_denom %d\n"
+		  "delta_chroma_log2_weight_denom %d\n",
+		  __print_array(__entry->p.delta_luma_weight_l0,
+				ARRAY_SIZE(__entry->p.delta_luma_weight_l0),
+				sizeof(__entry->p.delta_luma_weight_l0[0])),
+		  __print_array(__entry->p.luma_offset_l0,
+				ARRAY_SIZE(__entry->p.luma_offset_l0),
+				sizeof(__entry->p.luma_offset_l0[0])),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.delta_chroma_weight_l0,
+				   sizeof(__entry->p.delta_chroma_weight_l0),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.chroma_offset_l0,
+				   sizeof(__entry->p.chroma_offset_l0),
+				   false),
+		  __print_array(__entry->p.delta_luma_weight_l1,
+				ARRAY_SIZE(__entry->p.delta_luma_weight_l1),
+				sizeof(__entry->p.delta_luma_weight_l1[0])),
+		  __print_array(__entry->p.luma_offset_l1,
+				ARRAY_SIZE(__entry->p.luma_offset_l1),
+				sizeof(__entry->p.luma_offset_l1[0])),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.delta_chroma_weight_l1,
+				   sizeof(__entry->p.delta_chroma_weight_l1),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.chroma_offset_l1,
+				   sizeof(__entry->p.chroma_offset_l1),
+				   false),
+		__entry->p.luma_log2_weight_denom,
+		__entry->p.delta_chroma_log2_weight_denom
+
+	))
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_hevc_scaling_matrix_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_hevc_scaling_matrix *s),
+	TP_ARGS(s),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_hevc_scaling_matrix, s)),
+	TP_fast_assign(__entry->s = *s),
+	TP_printk("\nscaling_list_4x4 {%s}\n"
+		  "scaling_list_8x8 {%s}\n"
+		  "scaling_list_16x16 {%s}\n"
+		  "scaling_list_32x32 {%s}\n"
+		  "scaling_list_dc_coef_16x16 %s\n"
+		  "scaling_list_dc_coef_32x32 %s\n",
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->s.scaling_list_4x4,
+				   sizeof(__entry->s.scaling_list_4x4),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->s.scaling_list_8x8,
+				   sizeof(__entry->s.scaling_list_8x8),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->s.scaling_list_16x16,
+				   sizeof(__entry->s.scaling_list_16x16),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->s.scaling_list_32x32,
+				   sizeof(__entry->s.scaling_list_32x32),
+				   false),
+		  __print_array(__entry->s.scaling_list_dc_coef_16x16,
+				ARRAY_SIZE(__entry->s.scaling_list_dc_coef_16x16),
+				sizeof(__entry->s.scaling_list_dc_coef_16x16[0])),
+		  __print_array(__entry->s.scaling_list_dc_coef_32x32,
+				ARRAY_SIZE(__entry->s.scaling_list_dc_coef_32x32),
+				sizeof(__entry->s.scaling_list_dc_coef_32x32[0]))
+	))
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_hevc_decode_params_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_hevc_decode_params *d),
+	TP_ARGS(d),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_hevc_decode_params, d)),
+	TP_fast_assign(__entry->d = *d),
+	TP_printk("\npic_order_cnt_val %d\n"
+		  "short_term_ref_pic_set_size %u\n"
+		  "long_term_ref_pic_set_size %u\n"
+		  "num_active_dpb_entries %u\n"
+		  "num_poc_st_curr_before %u\n"
+		  "num_poc_st_curr_after %u\n"
+		  "num_poc_lt_curr %u\n"
+		  "poc_st_curr_before %s\n"
+		  "poc_st_curr_after %s\n"
+		  "poc_lt_curr %s\n"
+		  "flags %s",
+		  __entry->d.pic_order_cnt_val,
+		  __entry->d.short_term_ref_pic_set_size,
+		  __entry->d.long_term_ref_pic_set_size,
+		  __entry->d.num_active_dpb_entries,
+		  __entry->d.num_poc_st_curr_before,
+		  __entry->d.num_poc_st_curr_after,
+		  __entry->d.num_poc_lt_curr,
+		  __print_array(__entry->d.poc_st_curr_before,
+				ARRAY_SIZE(__entry->d.poc_st_curr_before),
+				sizeof(__entry->d.poc_st_curr_before[0])),
+		  __print_array(__entry->d.poc_st_curr_after,
+				ARRAY_SIZE(__entry->d.poc_st_curr_after),
+				sizeof(__entry->d.poc_st_curr_after[0])),
+		  __print_array(__entry->d.poc_lt_curr,
+				ARRAY_SIZE(__entry->d.poc_lt_curr),
+				sizeof(__entry->d.poc_lt_curr[0])),
+		  __print_flags(__entry->d.flags, "|",
+		  {V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC, "IRAP_PIC"},
+		  {V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC, "IDR_PIC"},
+		  {V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR, "NO_OUTPUT_OF_PRIOR"}
+	))
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_hevc_ext_sps_lt_rps_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_hevc_ext_sps_lt_rps *lt),
+	TP_ARGS(lt),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_hevc_ext_sps_lt_rps, lt)),
+	TP_fast_assign(__entry->lt = *lt),
+	TP_printk("\nflags %s\n"
+		  "lt_ref_pic_poc_lsb_sps %x\n",
+		  __print_flags(__entry->lt.flags, "|",
+		  {V4L2_HEVC_EXT_SPS_LT_RPS_FLAG_USED_LT, "USED_LT"}
+		  ),
+		  __entry->lt.lt_ref_pic_poc_lsb_sps
+	)
+)
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_hevc_ext_sps_st_rps_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_hevc_ext_sps_st_rps *st),
+	TP_ARGS(st),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_hevc_ext_sps_st_rps, st)),
+	TP_fast_assign(__entry->st = *st),
+	TP_printk("\nflags %s\n"
+		  "delta_idx_minus1: %u\n"
+		  "delta_rps_sign: %u\n"
+		  "abs_delta_rps_minus1: %u\n"
+		  "num_negative_pics: %u\n"
+		  "num_positive_pics: %u\n"
+		  "used_by_curr_pic: %08x\n"
+		  "use_delta_flag: %08x\n"
+		  "delta_poc_s0_minus1: %s\n"
+		  "delta_poc_s1_minus1: %s\n",
+		  __print_flags(__entry->st.flags, "|",
+		  {V4L2_HEVC_EXT_SPS_ST_RPS_FLAG_INTER_REF_PIC_SET_PRED, "INTER_REF_PIC_SET_PRED"}
+		  ),
+		  __entry->st.delta_idx_minus1,
+		  __entry->st.delta_rps_sign,
+		  __entry->st.abs_delta_rps_minus1,
+		  __entry->st.num_negative_pics,
+		  __entry->st.num_positive_pics,
+		  __entry->st.used_by_curr_pic,
+		  __entry->st.use_delta_flag,
+		  __print_array(__entry->st.delta_poc_s0_minus1,
+				ARRAY_SIZE(__entry->st.delta_poc_s0_minus1),
+				sizeof(__entry->st.delta_poc_s0_minus1[0])),
+		  __print_array(__entry->st.delta_poc_s1_minus1,
+				ARRAY_SIZE(__entry->st.delta_poc_s1_minus1),
+				sizeof(__entry->st.delta_poc_s1_minus1[0]))
+	)
+)
+
+
+DECLARE_EVENT_CLASS(v4l2_hevc_dpb_entry_tmpl,
+	TP_PROTO(const struct v4l2_hevc_dpb_entry *e),
+	TP_ARGS(e),
+	TP_STRUCT__entry(__field_struct(struct v4l2_hevc_dpb_entry, e)),
+	TP_fast_assign(__entry->e = *e),
+	TP_printk("\ntimestamp %llu\n"
+		  "flags %s\n"
+		  "field_pic %u\n"
+		  "pic_order_cnt_val %d\n",
+		__entry->e.timestamp,
+		__print_flags(__entry->e.flags, "|",
+		{V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE, "LONG_TERM_REFERENCE"}
+		  ),
+		__entry->e.field_pic,
+		__entry->e.pic_order_cnt_val
+	))
+
+DEFINE_EVENT(v4l2_ctrl_hevc_sps_tmpl, v4l2_ctrl_hevc_sps,
+	TP_PROTO(const struct v4l2_ctrl_hevc_sps *s),
+	TP_ARGS(s)
+);
+
+DEFINE_EVENT(v4l2_ctrl_hevc_pps_tmpl, v4l2_ctrl_hevc_pps,
+	TP_PROTO(const struct v4l2_ctrl_hevc_pps *p),
+	TP_ARGS(p)
+);
+
+DEFINE_EVENT(v4l2_ctrl_hevc_slice_params_tmpl, v4l2_ctrl_hevc_slice_params,
+	TP_PROTO(const struct v4l2_ctrl_hevc_slice_params *s),
+	TP_ARGS(s)
+);
+
+DEFINE_EVENT(v4l2_hevc_pred_weight_table_tmpl, v4l2_hevc_pred_weight_table,
+	TP_PROTO(const struct v4l2_hevc_pred_weight_table *p),
+	TP_ARGS(p)
+);
+
+DEFINE_EVENT(v4l2_ctrl_hevc_scaling_matrix_tmpl, v4l2_ctrl_hevc_scaling_matrix,
+	TP_PROTO(const struct v4l2_ctrl_hevc_scaling_matrix *s),
+	TP_ARGS(s)
+);
+
+DEFINE_EVENT(v4l2_ctrl_hevc_decode_params_tmpl, v4l2_ctrl_hevc_decode_params,
+	TP_PROTO(const struct v4l2_ctrl_hevc_decode_params *d),
+	TP_ARGS(d)
+);
+
+DEFINE_EVENT(v4l2_ctrl_hevc_ext_sps_lt_rps_tmpl, v4l2_ctrl_hevc_ext_sps_lt_rps,
+	TP_PROTO(const struct v4l2_ctrl_hevc_ext_sps_lt_rps *lt),
+	TP_ARGS(lt)
+);
+
+DEFINE_EVENT(v4l2_ctrl_hevc_ext_sps_st_rps_tmpl, v4l2_ctrl_hevc_ext_sps_st_rps,
+	TP_PROTO(const struct v4l2_ctrl_hevc_ext_sps_st_rps *st),
+	TP_ARGS(st)
+);
+
+DEFINE_EVENT(v4l2_hevc_dpb_entry_tmpl, v4l2_hevc_dpb_entry,
+	TP_PROTO(const struct v4l2_hevc_dpb_entry *e),
+	TP_ARGS(e)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH ../../drivers/media/test-drivers/visl
+#define TRACE_INCLUDE_FILE visl-trace-hevc
+#include <trace/define_trace.h>
diff --git a/drivers/media/test-drivers/visl/visl-trace-mpeg2.h b/drivers/media/test-drivers/visl/visl-trace-mpeg2.h
new file mode 100644
index 000000000..ba6c65481
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-trace-mpeg2.h
@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(_VISL_TRACE_MPEG2_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _VISL_TRACE_MPEG2_H_
+
+#include <linux/tracepoint.h>
+#include "visl.h"
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM visl_mpeg2_controls
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_mpeg2_seq_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_mpeg2_sequence *s),
+	TP_ARGS(s),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_mpeg2_sequence, s)),
+	TP_fast_assign(__entry->s = *s;),
+	TP_printk("\nhorizontal_size %u\nvertical_size %u\nvbv_buffer_size %u\n"
+		  "profile_and_level_indication %u\nchroma_format %u\nflags %s\n",
+		  __entry->s.horizontal_size,
+		  __entry->s.vertical_size,
+		  __entry->s.vbv_buffer_size,
+		  __entry->s.profile_and_level_indication,
+		  __entry->s.chroma_format,
+		  __print_flags(__entry->s.flags, "|",
+		  {V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE, "PROGRESSIVE"})
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_mpeg2_pic_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_mpeg2_picture *p),
+	TP_ARGS(p),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_mpeg2_picture, p)),
+	TP_fast_assign(__entry->p = *p;),
+	TP_printk("\nbackward_ref_ts %llu\nforward_ref_ts %llu\nflags %s\nf_code {%s}\n"
+		  "picture_coding_type: %u\npicture_structure %u\nintra_dc_precision %u\n",
+		  __entry->p.backward_ref_ts,
+		  __entry->p.forward_ref_ts,
+		  __print_flags(__entry->p.flags, "|",
+		  {V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST, "TOP_FIELD_FIRST"},
+		  {V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT, "FRAME_PRED_DCT"},
+		  {V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV, "CONCEALMENT_MV"},
+		  {V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE, "Q_SCALE_TYPE"},
+		  {V4L2_MPEG2_PIC_FLAG_INTRA_VLC, "INTA_VLC"},
+		  {V4L2_MPEG2_PIC_FLAG_ALT_SCAN, "ALT_SCAN"},
+		  {V4L2_MPEG2_PIC_FLAG_REPEAT_FIRST, "REPEAT_FIRST"},
+		  {V4L2_MPEG2_PIC_FLAG_PROGRESSIVE, "PROGRESSIVE"}),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.f_code,
+				   sizeof(__entry->p.f_code),
+				   false),
+		  __entry->p.picture_coding_type,
+		  __entry->p.picture_structure,
+		  __entry->p.intra_dc_precision
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_mpeg2_quant_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_mpeg2_quantisation *q),
+	TP_ARGS(q),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_mpeg2_quantisation, q)),
+	TP_fast_assign(__entry->q = *q;),
+	TP_printk("\nintra_quantiser_matrix %s\nnon_intra_quantiser_matrix %s\n"
+		  "chroma_intra_quantiser_matrix %s\nchroma_non_intra_quantiser_matrix %s\n",
+		  __print_array(__entry->q.intra_quantiser_matrix,
+				ARRAY_SIZE(__entry->q.intra_quantiser_matrix),
+				sizeof(__entry->q.intra_quantiser_matrix[0])),
+		  __print_array(__entry->q.non_intra_quantiser_matrix,
+				ARRAY_SIZE(__entry->q.non_intra_quantiser_matrix),
+				sizeof(__entry->q.non_intra_quantiser_matrix[0])),
+		  __print_array(__entry->q.chroma_intra_quantiser_matrix,
+				ARRAY_SIZE(__entry->q.chroma_intra_quantiser_matrix),
+				sizeof(__entry->q.chroma_intra_quantiser_matrix[0])),
+		  __print_array(__entry->q.chroma_non_intra_quantiser_matrix,
+				ARRAY_SIZE(__entry->q.chroma_non_intra_quantiser_matrix),
+				sizeof(__entry->q.chroma_non_intra_quantiser_matrix[0]))
+		  )
+)
+
+DEFINE_EVENT(v4l2_ctrl_mpeg2_seq_tmpl, v4l2_ctrl_mpeg2_sequence,
+	TP_PROTO(const struct v4l2_ctrl_mpeg2_sequence *s),
+	TP_ARGS(s)
+);
+
+DEFINE_EVENT(v4l2_ctrl_mpeg2_pic_tmpl, v4l2_ctrl_mpeg2_picture,
+	TP_PROTO(const struct v4l2_ctrl_mpeg2_picture *p),
+	TP_ARGS(p)
+);
+
+DEFINE_EVENT(v4l2_ctrl_mpeg2_quant_tmpl, v4l2_ctrl_mpeg2_quantisation,
+	TP_PROTO(const struct v4l2_ctrl_mpeg2_quantisation *q),
+	TP_ARGS(q)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH ../../drivers/media/test-drivers/visl
+#define TRACE_INCLUDE_FILE visl-trace-mpeg2
+#include <trace/define_trace.h>
diff --git a/drivers/media/test-drivers/visl/visl-trace-points.c b/drivers/media/test-drivers/visl/visl-trace-points.c
new file mode 100644
index 000000000..321ff732c
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-trace-points.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "visl.h"
+
+#define CREATE_TRACE_POINTS
+#include "visl-trace-fwht.h"
+#include "visl-trace-mpeg2.h"
+#include "visl-trace-vp8.h"
+#include "visl-trace-vp9.h"
+#include "visl-trace-h264.h"
+#include "visl-trace-hevc.h"
+#include "visl-trace-av1.h"
diff --git a/drivers/media/test-drivers/visl/visl-trace-vp8.h b/drivers/media/test-drivers/visl/visl-trace-vp8.h
new file mode 100644
index 000000000..dabe17d69
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-trace-vp8.h
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(_VISL_TRACE_VP8_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _VISL_TRACE_VP8_H_
+
+#include <linux/tracepoint.h>
+#include "visl.h"
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM visl_vp8_controls
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_vp8_entropy_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_vp8_frame *f),
+	TP_ARGS(f),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_vp8_frame, f)),
+	TP_fast_assign(__entry->f = *f;),
+	TP_printk("\nentropy.coeff_probs {%s}\n"
+		  "entropy.y_mode_probs %s\n"
+		  "entropy.uv_mode_probs %s\n"
+		  "entropy.mv_probs {%s}",
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->f.entropy.coeff_probs,
+				   sizeof(__entry->f.entropy.coeff_probs),
+				   false),
+		  __print_array(__entry->f.entropy.y_mode_probs,
+				ARRAY_SIZE(__entry->f.entropy.y_mode_probs),
+				sizeof(__entry->f.entropy.y_mode_probs[0])),
+		  __print_array(__entry->f.entropy.uv_mode_probs,
+				ARRAY_SIZE(__entry->f.entropy.uv_mode_probs),
+				sizeof(__entry->f.entropy.uv_mode_probs[0])),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->f.entropy.mv_probs,
+				   sizeof(__entry->f.entropy.mv_probs),
+				   false)
+		  )
+)
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_vp8_frame_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_vp8_frame *f),
+	TP_ARGS(f),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_vp8_frame, f)),
+	TP_fast_assign(__entry->f = *f;),
+	TP_printk("\nsegment.quant_update %s\n"
+		  "segment.lf_update %s\n"
+		  "segment.segment_probs %s\n"
+		  "segment.flags %s\n"
+		  "lf.ref_frm_delta %s\n"
+		  "lf.mb_mode_delta %s\n"
+		  "lf.sharpness_level %u\n"
+		  "lf.level %u\n"
+		  "lf.flags %s\n"
+		  "quant.y_ac_qi %u\n"
+		  "quant.y_dc_delta %d\n"
+		  "quant.y2_dc_delta %d\n"
+		  "quant.y2_ac_delta %d\n"
+		  "quant.uv_dc_delta %d\n"
+		  "quant.uv_ac_delta %d\n"
+		  "coder_state.range %u\n"
+		  "coder_state.value %u\n"
+		  "coder_state.bit_count %u\n"
+		  "width %u\n"
+		  "height %u\n"
+		  "horizontal_scale %u\n"
+		  "vertical_scale %u\n"
+		  "version %u\n"
+		  "prob_skip_false %u\n"
+		  "prob_intra %u\n"
+		  "prob_last %u\n"
+		  "prob_gf %u\n"
+		  "num_dct_parts %u\n"
+		  "first_part_size %u\n"
+		  "first_part_header_bits %u\n"
+		  "dct_part_sizes %s\n"
+		  "last_frame_ts %llu\n"
+		  "golden_frame_ts %llu\n"
+		  "alt_frame_ts %llu\n"
+		  "flags %s",
+		  __print_array(__entry->f.segment.quant_update,
+				ARRAY_SIZE(__entry->f.segment.quant_update),
+				sizeof(__entry->f.segment.quant_update[0])),
+		  __print_array(__entry->f.segment.lf_update,
+				ARRAY_SIZE(__entry->f.segment.lf_update),
+				sizeof(__entry->f.segment.lf_update[0])),
+		  __print_array(__entry->f.segment.segment_probs,
+				ARRAY_SIZE(__entry->f.segment.segment_probs),
+				sizeof(__entry->f.segment.segment_probs[0])),
+		  __print_flags(__entry->f.segment.flags, "|",
+		  {V4L2_VP8_SEGMENT_FLAG_ENABLED, "SEGMENT_ENABLED"},
+		  {V4L2_VP8_SEGMENT_FLAG_UPDATE_MAP, "SEGMENT_UPDATE_MAP"},
+		  {V4L2_VP8_SEGMENT_FLAG_UPDATE_FEATURE_DATA, "SEGMENT_UPDATE_FEATURE_DATA"},
+		  {V4L2_VP8_SEGMENT_FLAG_DELTA_VALUE_MODE, "SEGMENT_DELTA_VALUE_MODE"}),
+		  __print_array(__entry->f.lf.ref_frm_delta,
+				ARRAY_SIZE(__entry->f.lf.ref_frm_delta),
+				sizeof(__entry->f.lf.ref_frm_delta[0])),
+		  __print_array(__entry->f.lf.mb_mode_delta,
+				ARRAY_SIZE(__entry->f.lf.mb_mode_delta),
+				sizeof(__entry->f.lf.mb_mode_delta[0])),
+		  __entry->f.lf.sharpness_level,
+		  __entry->f.lf.level,
+		  __print_flags(__entry->f.lf.flags, "|",
+		  {V4L2_VP8_LF_ADJ_ENABLE, "LF_ADJ_ENABLED"},
+		  {V4L2_VP8_LF_DELTA_UPDATE, "LF_DELTA_UPDATE"},
+		  {V4L2_VP8_LF_FILTER_TYPE_SIMPLE, "LF_FILTER_TYPE_SIMPLE"}),
+		  __entry->f.quant.y_ac_qi,
+		  __entry->f.quant.y_dc_delta,
+		  __entry->f.quant.y2_dc_delta,
+		  __entry->f.quant.y2_ac_delta,
+		  __entry->f.quant.uv_dc_delta,
+		  __entry->f.quant.uv_ac_delta,
+		  __entry->f.coder_state.range,
+		  __entry->f.coder_state.value,
+		  __entry->f.coder_state.bit_count,
+		  __entry->f.width,
+		  __entry->f.height,
+		  __entry->f.horizontal_scale,
+		  __entry->f.vertical_scale,
+		  __entry->f.version,
+		  __entry->f.prob_skip_false,
+		  __entry->f.prob_intra,
+		  __entry->f.prob_last,
+		  __entry->f.prob_gf,
+		  __entry->f.num_dct_parts,
+		  __entry->f.first_part_size,
+		  __entry->f.first_part_header_bits,
+		  __print_array(__entry->f.dct_part_sizes,
+				ARRAY_SIZE(__entry->f.dct_part_sizes),
+				sizeof(__entry->f.dct_part_sizes[0])),
+		  __entry->f.last_frame_ts,
+		  __entry->f.golden_frame_ts,
+		  __entry->f.alt_frame_ts,
+		  __print_flags(__entry->f.flags, "|",
+		  {V4L2_VP8_FRAME_FLAG_KEY_FRAME, "KEY_FRAME"},
+		  {V4L2_VP8_FRAME_FLAG_EXPERIMENTAL, "EXPERIMENTAL"},
+		  {V4L2_VP8_FRAME_FLAG_SHOW_FRAME, "SHOW_FRAME"},
+		  {V4L2_VP8_FRAME_FLAG_MB_NO_SKIP_COEFF, "MB_NO_SKIP_COEFF"},
+		  {V4L2_VP8_FRAME_FLAG_SIGN_BIAS_GOLDEN, "SIGN_BIAS_GOLDEN"},
+		  {V4L2_VP8_FRAME_FLAG_SIGN_BIAS_ALT, "SIGN_BIAS_ALT"})
+		  )
+);
+
+DEFINE_EVENT(v4l2_ctrl_vp8_frame_tmpl, v4l2_ctrl_vp8_frame,
+	TP_PROTO(const struct v4l2_ctrl_vp8_frame *f),
+	TP_ARGS(f)
+);
+
+DEFINE_EVENT(v4l2_ctrl_vp8_entropy_tmpl, v4l2_ctrl_vp8_entropy,
+	TP_PROTO(const struct v4l2_ctrl_vp8_frame *f),
+	TP_ARGS(f)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH ../../drivers/media/test-drivers/visl
+#define TRACE_INCLUDE_FILE visl-trace-vp8
+#include <trace/define_trace.h>
diff --git a/drivers/media/test-drivers/visl/visl-trace-vp9.h b/drivers/media/test-drivers/visl/visl-trace-vp9.h
new file mode 100644
index 000000000..362b92b07
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-trace-vp9.h
@@ -0,0 +1,292 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(_VISL_TRACE_VP9_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _VISL_TRACE_VP9_H_
+
+#include <linux/tracepoint.h>
+#include "visl.h"
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM visl_vp9_controls
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_vp9_frame_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_vp9_frame *f),
+	TP_ARGS(f),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_vp9_frame, f)),
+	TP_fast_assign(__entry->f = *f;),
+	TP_printk("\nlf.ref_deltas %s\n"
+		  "lf.mode_deltas %s\n"
+		  "lf.level %u\n"
+		  "lf.sharpness %u\n"
+		  "lf.flags %s\n"
+		  "quant.base_q_idx %u\n"
+		  "quant.delta_q_y_dc %d\n"
+		  "quant.delta_q_uv_dc %d\n"
+		  "quant.delta_q_uv_ac %d\n"
+		  "seg.feature_data {%s}\n"
+		  "seg.feature_enabled %s\n"
+		  "seg.tree_probs %s\n"
+		  "seg.pred_probs %s\n"
+		  "seg.flags %s\n"
+		  "flags %s\n"
+		  "compressed_header_size %u\n"
+		  "uncompressed_header_size %u\n"
+		  "frame_width_minus_1 %u\n"
+		  "frame_height_minus_1 %u\n"
+		  "render_width_minus_1 %u\n"
+		  "render_height_minus_1 %u\n"
+		  "last_frame_ts %llu\n"
+		  "golden_frame_ts %llu\n"
+		  "alt_frame_ts %llu\n"
+		  "ref_frame_sign_bias %s\n"
+		  "reset_frame_context %s\n"
+		  "frame_context_idx %u\n"
+		  "profile %u\n"
+		  "bit_depth %u\n"
+		  "interpolation_filter %s\n"
+		  "tile_cols_log2 %u\n"
+		  "tile_rows_log_2 %u\n"
+		  "reference_mode %s\n",
+		  __print_array(__entry->f.lf.ref_deltas,
+				ARRAY_SIZE(__entry->f.lf.ref_deltas),
+				sizeof(__entry->f.lf.ref_deltas[0])),
+		  __print_array(__entry->f.lf.mode_deltas,
+				ARRAY_SIZE(__entry->f.lf.mode_deltas),
+				sizeof(__entry->f.lf.mode_deltas[0])),
+		  __entry->f.lf.level,
+		  __entry->f.lf.sharpness,
+		  __print_flags(__entry->f.lf.flags, "|",
+		  {V4L2_VP9_LOOP_FILTER_FLAG_DELTA_ENABLED, "DELTA_ENABLED"},
+		  {V4L2_VP9_LOOP_FILTER_FLAG_DELTA_UPDATE, "DELTA_UPDATE"}),
+		  __entry->f.quant.base_q_idx,
+		  __entry->f.quant.delta_q_y_dc,
+		  __entry->f.quant.delta_q_uv_dc,
+		  __entry->f.quant.delta_q_uv_ac,
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->f.seg.feature_data,
+				   sizeof(__entry->f.seg.feature_data),
+				   false),
+		  __print_array(__entry->f.seg.feature_enabled,
+				ARRAY_SIZE(__entry->f.seg.feature_enabled),
+				sizeof(__entry->f.seg.feature_enabled[0])),
+		  __print_array(__entry->f.seg.tree_probs,
+				ARRAY_SIZE(__entry->f.seg.tree_probs),
+				sizeof(__entry->f.seg.tree_probs[0])),
+		  __print_array(__entry->f.seg.pred_probs,
+				ARRAY_SIZE(__entry->f.seg.pred_probs),
+				sizeof(__entry->f.seg.pred_probs[0])),
+		  __print_flags(__entry->f.seg.flags, "|",
+		  {V4L2_VP9_SEGMENTATION_FLAG_ENABLED, "ENABLED"},
+		  {V4L2_VP9_SEGMENTATION_FLAG_UPDATE_MAP, "UPDATE_MAP"},
+		  {V4L2_VP9_SEGMENTATION_FLAG_TEMPORAL_UPDATE, "TEMPORAL_UPDATE"},
+		  {V4L2_VP9_SEGMENTATION_FLAG_UPDATE_DATA, "UPDATE_DATA"},
+		  {V4L2_VP9_SEGMENTATION_FLAG_ABS_OR_DELTA_UPDATE, "ABS_OR_DELTA_UPDATE"}),
+		  __print_flags(__entry->f.flags, "|",
+		  {V4L2_VP9_FRAME_FLAG_KEY_FRAME, "KEY_FRAME"},
+		  {V4L2_VP9_FRAME_FLAG_SHOW_FRAME, "SHOW_FRAME"},
+		  {V4L2_VP9_FRAME_FLAG_ERROR_RESILIENT, "ERROR_RESILIENT"},
+		  {V4L2_VP9_FRAME_FLAG_INTRA_ONLY, "INTRA_ONLY"},
+		  {V4L2_VP9_FRAME_FLAG_ALLOW_HIGH_PREC_MV, "ALLOW_HIGH_PREC_MV"},
+		  {V4L2_VP9_FRAME_FLAG_REFRESH_FRAME_CTX, "REFRESH_FRAME_CTX"},
+		  {V4L2_VP9_FRAME_FLAG_PARALLEL_DEC_MODE, "PARALLEL_DEC_MODE"},
+		  {V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING, "X_SUBSAMPLING"},
+		  {V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING, "Y_SUBSAMPLING"},
+		  {V4L2_VP9_FRAME_FLAG_COLOR_RANGE_FULL_SWING, "COLOR_RANGE_FULL_SWING"}),
+		  __entry->f.compressed_header_size,
+		  __entry->f.uncompressed_header_size,
+		  __entry->f.frame_width_minus_1,
+		  __entry->f.frame_height_minus_1,
+		  __entry->f.render_width_minus_1,
+		  __entry->f.render_height_minus_1,
+		  __entry->f.last_frame_ts,
+		  __entry->f.golden_frame_ts,
+		  __entry->f.alt_frame_ts,
+		  __print_symbolic(__entry->f.ref_frame_sign_bias,
+		  {V4L2_VP9_SIGN_BIAS_LAST, "SIGN_BIAS_LAST"},
+		  {V4L2_VP9_SIGN_BIAS_GOLDEN, "SIGN_BIAS_GOLDEN"},
+		  {V4L2_VP9_SIGN_BIAS_ALT, "SIGN_BIAS_ALT"}),
+		  __print_symbolic(__entry->f.reset_frame_context,
+		  {V4L2_VP9_RESET_FRAME_CTX_NONE, "RESET_FRAME_CTX_NONE"},
+		  {V4L2_VP9_RESET_FRAME_CTX_SPEC, "RESET_FRAME_CTX_SPEC"},
+		  {V4L2_VP9_RESET_FRAME_CTX_ALL, "RESET_FRAME_CTX_ALL"}),
+		  __entry->f.frame_context_idx,
+		  __entry->f.profile,
+		  __entry->f.bit_depth,
+		  __print_symbolic(__entry->f.interpolation_filter,
+		  {V4L2_VP9_INTERP_FILTER_EIGHTTAP, "INTERP_FILTER_EIGHTTAP"},
+		  {V4L2_VP9_INTERP_FILTER_EIGHTTAP_SMOOTH, "INTERP_FILTER_EIGHTTAP_SMOOTH"},
+		  {V4L2_VP9_INTERP_FILTER_EIGHTTAP_SHARP, "INTERP_FILTER_EIGHTTAP_SHARP"},
+		  {V4L2_VP9_INTERP_FILTER_BILINEAR, "INTERP_FILTER_BILINEAR"},
+		  {V4L2_VP9_INTERP_FILTER_SWITCHABLE, "INTERP_FILTER_SWITCHABLE"}),
+		  __entry->f.tile_cols_log2,
+		  __entry->f.tile_rows_log2,
+		  __print_symbolic(__entry->f.reference_mode,
+		  {V4L2_VP9_REFERENCE_MODE_SINGLE_REFERENCE, "REFERENCE_MODE_SINGLE_REFERENCE"},
+		  {V4L2_VP9_REFERENCE_MODE_COMPOUND_REFERENCE, "REFERENCE_MODE_COMPOUND_REFERENCE"},
+		  {V4L2_VP9_REFERENCE_MODE_SELECT, "REFERENCE_MODE_SELECT"}))
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_vp9_compressed_hdr_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_vp9_compressed_hdr *h),
+	TP_ARGS(h),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_vp9_compressed_hdr, h)),
+	TP_fast_assign(__entry->h = *h;),
+	TP_printk("\ntx_mode %s\n"
+		  "tx8 {%s}\n"
+		  "tx16 {%s}\n"
+		  "tx32 {%s}\n"
+		  "skip %s\n"
+		  "inter_mode {%s}\n"
+		  "interp_filter {%s}\n"
+		  "is_inter %s\n"
+		  "comp_mode %s\n"
+		  "single_ref {%s}\n"
+		  "comp_ref %s\n"
+		  "y_mode {%s}\n"
+		  "uv_mode {%s}\n"
+		  "partition {%s}\n",
+		  __print_symbolic(__entry->h.tx_mode,
+		  {V4L2_VP9_TX_MODE_ONLY_4X4, "TX_MODE_ONLY_4X4"},
+		  {V4L2_VP9_TX_MODE_ALLOW_8X8, "TX_MODE_ALLOW_8X8"},
+		  {V4L2_VP9_TX_MODE_ALLOW_16X16, "TX_MODE_ALLOW_16X16"},
+		  {V4L2_VP9_TX_MODE_ALLOW_32X32, "TX_MODE_ALLOW_32X32"},
+		  {V4L2_VP9_TX_MODE_SELECT, "TX_MODE_SELECT"}),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->h.tx8,
+				   sizeof(__entry->h.tx8),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->h.tx16,
+				   sizeof(__entry->h.tx16),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->h.tx32,
+				   sizeof(__entry->h.tx32),
+				   false),
+		  __print_array(__entry->h.skip,
+				ARRAY_SIZE(__entry->h.skip),
+				sizeof(__entry->h.skip[0])),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->h.inter_mode,
+				   sizeof(__entry->h.inter_mode),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->h.interp_filter,
+				   sizeof(__entry->h.interp_filter),
+				   false),
+		  __print_array(__entry->h.is_inter,
+				ARRAY_SIZE(__entry->h.is_inter),
+				sizeof(__entry->h.is_inter[0])),
+		  __print_array(__entry->h.comp_mode,
+				ARRAY_SIZE(__entry->h.comp_mode),
+				sizeof(__entry->h.comp_mode[0])),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->h.single_ref,
+				   sizeof(__entry->h.single_ref),
+				   false),
+		  __print_array(__entry->h.comp_ref,
+				ARRAY_SIZE(__entry->h.comp_ref),
+				sizeof(__entry->h.comp_ref[0])),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->h.y_mode,
+				   sizeof(__entry->h.y_mode),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->h.uv_mode,
+				   sizeof(__entry->h.uv_mode),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->h.partition,
+				   sizeof(__entry->h.partition),
+				   false)
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_ctrl_vp9_compressed_coef_tmpl,
+	TP_PROTO(const struct v4l2_ctrl_vp9_compressed_hdr *h),
+	TP_ARGS(h),
+	TP_STRUCT__entry(__field_struct(struct v4l2_ctrl_vp9_compressed_hdr, h)),
+	TP_fast_assign(__entry->h = *h;),
+	TP_printk("\n coef {%s}",
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->h.coef,
+				   sizeof(__entry->h.coef),
+				   false)
+	)
+);
+
+DECLARE_EVENT_CLASS(v4l2_vp9_mv_probs_tmpl,
+	TP_PROTO(const struct v4l2_vp9_mv_probs *p),
+	TP_ARGS(p),
+	TP_STRUCT__entry(__field_struct(struct v4l2_vp9_mv_probs, p)),
+	TP_fast_assign(__entry->p = *p;),
+	TP_printk("\n joint %s\n"
+		  "sign %s\n"
+		  "classes {%s}\n"
+		  "class0_bit %s\n"
+		  "bits {%s}\n"
+		  "class0_fr {%s}\n"
+		  "fr {%s}\n"
+		  "class0_hp %s\n"
+		  "hp %s\n",
+		  __print_array(__entry->p.joint,
+				ARRAY_SIZE(__entry->p.joint),
+				sizeof(__entry->p.joint[0])),
+		  __print_array(__entry->p.sign,
+				ARRAY_SIZE(__entry->p.sign),
+				sizeof(__entry->p.sign[0])),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.classes,
+				   sizeof(__entry->p.classes),
+				   false),
+		  __print_array(__entry->p.class0_bit,
+				ARRAY_SIZE(__entry->p.class0_bit),
+				sizeof(__entry->p.class0_bit[0])),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.bits,
+				   sizeof(__entry->p.bits),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.class0_fr,
+				   sizeof(__entry->p.class0_fr),
+				   false),
+		  __print_hex_dump("", DUMP_PREFIX_NONE, 32, 1,
+				   __entry->p.fr,
+				   sizeof(__entry->p.fr),
+				   false),
+		  __print_array(__entry->p.class0_hp,
+				ARRAY_SIZE(__entry->p.class0_hp),
+				sizeof(__entry->p.class0_hp[0])),
+		  __print_array(__entry->p.hp,
+				ARRAY_SIZE(__entry->p.hp),
+				sizeof(__entry->p.hp[0]))
+	)
+);
+
+DEFINE_EVENT(v4l2_ctrl_vp9_frame_tmpl, v4l2_ctrl_vp9_frame,
+	TP_PROTO(const struct v4l2_ctrl_vp9_frame *f),
+	TP_ARGS(f)
+);
+
+DEFINE_EVENT(v4l2_ctrl_vp9_compressed_hdr_tmpl, v4l2_ctrl_vp9_compressed_hdr,
+	TP_PROTO(const struct v4l2_ctrl_vp9_compressed_hdr *h),
+	TP_ARGS(h)
+);
+
+DEFINE_EVENT(v4l2_ctrl_vp9_compressed_coef_tmpl, v4l2_ctrl_vp9_compressed_coeff,
+	TP_PROTO(const struct v4l2_ctrl_vp9_compressed_hdr *h),
+	TP_ARGS(h)
+);
+
+
+DEFINE_EVENT(v4l2_vp9_mv_probs_tmpl, v4l2_vp9_mv_probs,
+	TP_PROTO(const struct v4l2_vp9_mv_probs *p),
+	TP_ARGS(p)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH ../../drivers/media/test-drivers/visl
+#define TRACE_INCLUDE_FILE visl-trace-vp9
+#include <trace/define_trace.h>
diff --git a/drivers/media/test-drivers/visl/visl-video.c b/drivers/media/test-drivers/visl/visl-video.c
new file mode 100644
index 000000000..8be505d89
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-video.c
@@ -0,0 +1,803 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Contains the driver implementation for the V4L2 stateless interface.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/font.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-vmalloc.h>
+#include <media/videobuf2-v4l2.h>
+
+#include "visl-video.h"
+
+#include "visl.h"
+#include "visl-debugfs.h"
+
+#define MIN_CODED_SZ (1024U * 256U)
+
+static void visl_set_current_codec(struct visl_ctx *ctx)
+{
+	u32 fourcc = ctx->coded_fmt.fmt.pix_mp.pixelformat;
+
+	switch (fourcc) {
+	case V4L2_PIX_FMT_FWHT_STATELESS:
+		ctx->current_codec = VISL_CODEC_FWHT;
+		break;
+	case V4L2_PIX_FMT_MPEG2_SLICE:
+		ctx->current_codec = VISL_CODEC_MPEG2;
+		break;
+	case V4L2_PIX_FMT_VP8_FRAME:
+		ctx->current_codec = VISL_CODEC_VP8;
+		break;
+	case V4L2_PIX_FMT_VP9_FRAME:
+		ctx->current_codec = VISL_CODEC_VP9;
+		break;
+	case V4L2_PIX_FMT_H264_SLICE:
+		ctx->current_codec = VISL_CODEC_H264;
+		break;
+	case V4L2_PIX_FMT_HEVC_SLICE:
+		ctx->current_codec = VISL_CODEC_HEVC;
+		break;
+	case V4L2_PIX_FMT_AV1_FRAME:
+		ctx->current_codec = VISL_CODEC_AV1;
+		break;
+	default:
+		dprintk(ctx->dev, "Warning: unsupported fourcc: %d\n", fourcc);
+		ctx->current_codec = VISL_CODEC_NONE;
+		break;
+	}
+}
+
+static void visl_print_fmt(struct visl_ctx *ctx, const struct v4l2_format *f)
+{
+	const struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+	u32 i;
+
+	dprintk(ctx->dev, "width: %d\n", pix_mp->width);
+	dprintk(ctx->dev, "height: %d\n", pix_mp->height);
+	dprintk(ctx->dev, "pixelformat: %c%c%c%c\n",
+		pix_mp->pixelformat,
+		(pix_mp->pixelformat >> 8) & 0xff,
+		(pix_mp->pixelformat >> 16) & 0xff,
+		(pix_mp->pixelformat >> 24) & 0xff);
+
+	dprintk(ctx->dev, "field: %d\n", pix_mp->field);
+	dprintk(ctx->dev, "colorspace: %d\n", pix_mp->colorspace);
+	dprintk(ctx->dev, "num_planes: %d\n", pix_mp->num_planes);
+	dprintk(ctx->dev, "flags: %d\n", pix_mp->flags);
+	dprintk(ctx->dev, "quantization: %d\n", pix_mp->quantization);
+	dprintk(ctx->dev, "xfer_func: %d\n", pix_mp->xfer_func);
+
+	for (i = 0; i < pix_mp->num_planes; i++) {
+		dprintk(ctx->dev,
+			"plane[%d]: sizeimage: %d\n", i, pix_mp->plane_fmt[i].sizeimage);
+		dprintk(ctx->dev,
+			"plane[%d]: bytesperline: %d\n", i, pix_mp->plane_fmt[i].bytesperline);
+	}
+}
+
+static int visl_tpg_init(struct visl_ctx *ctx)
+{
+	const struct font_desc *font;
+	const char *font_name = "VGA8x16";
+	int ret;
+	u32 width = ctx->decoded_fmt.fmt.pix_mp.width;
+	u32 height = ctx->decoded_fmt.fmt.pix_mp.height;
+	struct v4l2_pix_format_mplane *f = &ctx->decoded_fmt.fmt.pix_mp;
+
+	tpg_free(&ctx->tpg);
+
+	font = find_font(font_name);
+	if (font) {
+		tpg_init(&ctx->tpg, width, height);
+
+		ret = tpg_alloc(&ctx->tpg, width);
+		if (ret)
+			goto err_alloc;
+
+		tpg_set_font(font->data);
+		ret = tpg_s_fourcc(&ctx->tpg,
+				   f->pixelformat);
+
+		if (!ret)
+			goto err_fourcc;
+
+		tpg_reset_source(&ctx->tpg, width, height, f->field);
+
+		tpg_s_pattern(&ctx->tpg, TPG_PAT_75_COLORBAR);
+
+		tpg_s_field(&ctx->tpg, f->field, false);
+		tpg_s_colorspace(&ctx->tpg, f->colorspace);
+		tpg_s_ycbcr_enc(&ctx->tpg, f->ycbcr_enc);
+		tpg_s_quantization(&ctx->tpg, f->quantization);
+		tpg_s_xfer_func(&ctx->tpg, f->xfer_func);
+	} else {
+		v4l2_err(&ctx->dev->v4l2_dev,
+			 "Font %s not found\n", font_name);
+
+		return -EINVAL;
+	}
+
+	dprintk(ctx->dev, "Initialized the V4L2 test pattern generator, w=%d, h=%d, max_w=%d\n",
+		width, height, width);
+
+	return 0;
+err_alloc:
+	return ret;
+err_fourcc:
+	tpg_free(&ctx->tpg);
+	return ret;
+}
+
+static const u32 visl_decoded_fmts[] = {
+	V4L2_PIX_FMT_NV12,
+	V4L2_PIX_FMT_YUV420,
+};
+
+static const u32 visl_extended_decoded_fmts[] = {
+	V4L2_PIX_FMT_NV12,
+	V4L2_PIX_FMT_YUV420,
+	V4L2_PIX_FMT_P010,
+};
+
+const struct visl_coded_format_desc visl_coded_fmts[] = {
+	{
+		.pixelformat = V4L2_PIX_FMT_FWHT_STATELESS,
+		.frmsize = {
+			.min_width = 640,
+			.max_width = 4096,
+			.step_width = 1,
+			.min_height = 360,
+			.max_height = 2160,
+			.step_height = 1,
+		},
+		.ctrls = &visl_fwht_ctrls,
+		.num_decoded_fmts = ARRAY_SIZE(visl_decoded_fmts),
+		.decoded_fmts = visl_decoded_fmts,
+	},
+	{
+		.pixelformat = V4L2_PIX_FMT_MPEG2_SLICE,
+		.frmsize = {
+			.min_width = 16,
+			.max_width = 1920,
+			.step_width = 1,
+			.min_height = 16,
+			.max_height = 1152,
+			.step_height = 1,
+		},
+		.ctrls = &visl_mpeg2_ctrls,
+		.num_decoded_fmts = ARRAY_SIZE(visl_decoded_fmts),
+		.decoded_fmts = visl_decoded_fmts,
+	},
+	{
+		.pixelformat = V4L2_PIX_FMT_VP8_FRAME,
+		.frmsize = {
+			.min_width = 64,
+			.max_width = 16383,
+			.step_width = 1,
+			.min_height = 64,
+			.max_height = 16383,
+			.step_height = 1,
+		},
+		.ctrls = &visl_vp8_ctrls,
+		.num_decoded_fmts = ARRAY_SIZE(visl_decoded_fmts),
+		.decoded_fmts = visl_decoded_fmts,
+	},
+	{
+		.pixelformat = V4L2_PIX_FMT_VP9_FRAME,
+		.frmsize = {
+			.min_width = 64,
+			.max_width = 8192,
+			.step_width = 1,
+			.min_height = 64,
+			.max_height = 4352,
+			.step_height = 1,
+		},
+		.ctrls = &visl_vp9_ctrls,
+		.num_decoded_fmts = ARRAY_SIZE(visl_decoded_fmts),
+		.decoded_fmts = visl_decoded_fmts,
+	},
+	{
+		.pixelformat = V4L2_PIX_FMT_H264_SLICE,
+		.frmsize = {
+			.min_width = 64,
+			.max_width = 4096,
+			.step_width = 1,
+			.min_height = 64,
+			.max_height = 2304,
+			.step_height = 1,
+		},
+		.ctrls = &visl_h264_ctrls,
+		.num_decoded_fmts = ARRAY_SIZE(visl_decoded_fmts),
+		.decoded_fmts = visl_decoded_fmts,
+	},
+	{
+		.pixelformat = V4L2_PIX_FMT_HEVC_SLICE,
+		.frmsize = {
+			.min_width = 64,
+			.max_width = 4096,
+			.step_width = 1,
+			.min_height = 64,
+			.max_height = 2304,
+			.step_height = 1,
+		},
+		.ctrls = &visl_hevc_ctrls,
+		.num_decoded_fmts = ARRAY_SIZE(visl_decoded_fmts),
+		.decoded_fmts = visl_decoded_fmts,
+	},
+	{
+		.pixelformat = V4L2_PIX_FMT_AV1_FRAME,
+		.frmsize = {
+			.min_width = 64,
+			.max_width = 4096,
+			.step_width = 1,
+			.min_height = 64,
+			.max_height = 2304,
+			.step_height = 1,
+		},
+		.ctrls = &visl_av1_ctrls,
+		.num_decoded_fmts = ARRAY_SIZE(visl_decoded_fmts),
+		.decoded_fmts = visl_decoded_fmts,
+	},
+
+};
+
+const size_t num_coded_fmts = ARRAY_SIZE(visl_coded_fmts);
+
+static const struct visl_coded_format_desc*
+visl_find_coded_fmt_desc(u32 fourcc)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(visl_coded_fmts); i++) {
+		if (visl_coded_fmts[i].pixelformat == fourcc)
+			return &visl_coded_fmts[i];
+	}
+
+	return NULL;
+}
+
+static void visl_init_fmt(struct v4l2_format *f, u32 fourcc)
+{	memset(f, 0, sizeof(*f));
+	f->fmt.pix_mp.pixelformat = fourcc;
+	f->fmt.pix_mp.field = V4L2_FIELD_NONE;
+	f->fmt.pix_mp.colorspace = V4L2_COLORSPACE_REC709;
+	f->fmt.pix_mp.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+	f->fmt.pix_mp.quantization = V4L2_QUANTIZATION_DEFAULT;
+	f->fmt.pix_mp.xfer_func = V4L2_XFER_FUNC_DEFAULT;
+}
+
+static void visl_reset_coded_fmt(struct visl_ctx *ctx)
+{
+	struct v4l2_format *f = &ctx->coded_fmt;
+	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+
+	ctx->coded_format_desc = &visl_coded_fmts[0];
+	visl_init_fmt(f, ctx->coded_format_desc->pixelformat);
+
+	f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+	f->fmt.pix_mp.width = ctx->coded_format_desc->frmsize.min_width;
+	f->fmt.pix_mp.height = ctx->coded_format_desc->frmsize.min_height;
+
+	pix_mp->num_planes = 1;
+	pix_mp->plane_fmt[0].sizeimage = pix_mp->width * pix_mp->height * 8;
+
+	dprintk(ctx->dev, "OUTPUT format was set to:\n");
+	visl_print_fmt(ctx, &ctx->coded_fmt);
+
+	visl_set_current_codec(ctx);
+}
+
+static int visl_reset_decoded_fmt(struct visl_ctx *ctx)
+{
+	struct v4l2_format *f = &ctx->decoded_fmt;
+	u32 decoded_fmt = ctx->coded_format_desc[0].decoded_fmts[0];
+
+	visl_init_fmt(f, decoded_fmt);
+
+	f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+
+	v4l2_fill_pixfmt_mp(&f->fmt.pix_mp,
+			    ctx->coded_format_desc->decoded_fmts[0],
+			    ctx->coded_fmt.fmt.pix_mp.width,
+			    ctx->coded_fmt.fmt.pix_mp.height);
+
+	dprintk(ctx->dev, "CAPTURE format was set to:\n");
+	visl_print_fmt(ctx, &ctx->decoded_fmt);
+
+	return visl_tpg_init(ctx);
+}
+
+int visl_set_default_format(struct visl_ctx *ctx)
+{
+	visl_reset_coded_fmt(ctx);
+	return visl_reset_decoded_fmt(ctx);
+}
+
+static struct visl_q_data *get_q_data(struct visl_ctx *ctx,
+				      enum v4l2_buf_type type)
+{
+	switch (type) {
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		return &ctx->q_data[V4L2_M2M_SRC];
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+		return &ctx->q_data[V4L2_M2M_DST];
+	default:
+		break;
+	}
+	return NULL;
+}
+
+static int visl_querycap(struct file *file, void *priv,
+			 struct v4l2_capability *cap)
+{
+	strscpy(cap->driver, VISL_NAME, sizeof(cap->driver));
+	strscpy(cap->card, VISL_NAME, sizeof(cap->card));
+	snprintf(cap->bus_info, sizeof(cap->bus_info),
+		 "platform:%s", VISL_NAME);
+
+	return 0;
+}
+
+static int visl_enum_fmt_vid_cap(struct file *file, void *priv,
+				 struct v4l2_fmtdesc *f)
+{
+	struct visl_ctx *ctx = visl_file_to_ctx(file);
+	u32 index = f->index & ~V4L2_FMTDESC_FLAG_ENUM_ALL;
+	int max_fmts = ctx->coded_format_desc->num_decoded_fmts;
+	const u32 *decoded_fmts = ctx->coded_format_desc->decoded_fmts;
+
+	if (f->index & V4L2_FMTDESC_FLAG_ENUM_ALL) {
+		max_fmts = ARRAY_SIZE(visl_extended_decoded_fmts);
+		decoded_fmts = visl_extended_decoded_fmts;
+	}
+
+	f->index = index;
+
+	if (index >= max_fmts)
+		return -EINVAL;
+
+	f->pixelformat = decoded_fmts[index];
+	return 0;
+}
+
+static int visl_enum_fmt_vid_out(struct file *file, void *priv,
+				 struct v4l2_fmtdesc *f)
+{
+	if (f->index >= ARRAY_SIZE(visl_coded_fmts))
+		return -EINVAL;
+
+	f->pixelformat = visl_coded_fmts[f->index].pixelformat;
+	return 0;
+}
+
+static int visl_g_fmt_vid_cap(struct file *file, void *priv,
+			      struct v4l2_format *f)
+{
+	struct visl_ctx *ctx = visl_file_to_ctx(file);
+	*f = ctx->decoded_fmt;
+
+	return 0;
+}
+
+static int visl_g_fmt_vid_out(struct file *file, void *priv,
+			      struct v4l2_format *f)
+{
+	struct visl_ctx *ctx = visl_file_to_ctx(file);
+
+	*f = ctx->coded_fmt;
+	return 0;
+}
+
+static int visl_try_fmt_vid_cap(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+	struct visl_ctx *ctx = visl_file_to_ctx(file);
+	const struct visl_coded_format_desc *coded_desc;
+	unsigned int i;
+
+	coded_desc = ctx->coded_format_desc;
+
+	for (i = 0; i < coded_desc->num_decoded_fmts; i++) {
+		if (coded_desc->decoded_fmts[i] == pix_mp->pixelformat)
+			break;
+	}
+
+	if (i == coded_desc->num_decoded_fmts)
+		pix_mp->pixelformat = coded_desc->decoded_fmts[0];
+
+	v4l2_apply_frmsize_constraints(&pix_mp->width,
+				       &pix_mp->height,
+				       &coded_desc->frmsize);
+
+	v4l2_fill_pixfmt_mp(pix_mp, pix_mp->pixelformat,
+			    pix_mp->width, pix_mp->height);
+
+	pix_mp->field = V4L2_FIELD_NONE;
+
+	return 0;
+}
+
+static int visl_try_fmt_vid_out(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+	const struct visl_coded_format_desc *coded_desc;
+
+	coded_desc = visl_find_coded_fmt_desc(pix_mp->pixelformat);
+	if (!coded_desc) {
+		pix_mp->pixelformat = visl_coded_fmts[0].pixelformat;
+		coded_desc = &visl_coded_fmts[0];
+	}
+
+	v4l2_apply_frmsize_constraints(&pix_mp->width,
+				       &pix_mp->height,
+				       &coded_desc->frmsize);
+
+	pix_mp->field = V4L2_FIELD_NONE;
+	pix_mp->num_planes = 1;
+
+	if (pix_mp->plane_fmt[0].sizeimage == 0)
+		pix_mp->plane_fmt[0].sizeimage = max(MIN_CODED_SZ,
+						     pix_mp->width * pix_mp->height * 3);
+
+	return 0;
+}
+
+static int visl_s_fmt_vid_out(struct file *file, void *priv,
+			      struct v4l2_format *f)
+{
+	struct visl_ctx *ctx = visl_file_to_ctx(file);
+	struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
+	const struct visl_coded_format_desc *desc;
+	struct vb2_queue *peer_vq;
+	int ret;
+
+	peer_vq = v4l2_m2m_get_vq(m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
+	if (vb2_is_busy(peer_vq))
+		return -EBUSY;
+
+	dprintk(ctx->dev, "Trying to set the OUTPUT format to:\n");
+	visl_print_fmt(ctx, f);
+
+	ret = visl_try_fmt_vid_out(file, priv, f);
+	if (ret)
+		return ret;
+
+	desc = visl_find_coded_fmt_desc(f->fmt.pix_mp.pixelformat);
+	ctx->coded_format_desc = desc;
+	ctx->coded_fmt = *f;
+
+	ret = visl_reset_decoded_fmt(ctx);
+	if (ret)
+		return ret;
+
+	ctx->decoded_fmt.fmt.pix_mp.colorspace = f->fmt.pix_mp.colorspace;
+	ctx->decoded_fmt.fmt.pix_mp.xfer_func = f->fmt.pix_mp.xfer_func;
+	ctx->decoded_fmt.fmt.pix_mp.ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
+	ctx->decoded_fmt.fmt.pix_mp.quantization = f->fmt.pix_mp.quantization;
+
+	dprintk(ctx->dev, "OUTPUT format was set to:\n");
+	visl_print_fmt(ctx, &ctx->coded_fmt);
+
+	visl_set_current_codec(ctx);
+	return 0;
+}
+
+static int visl_s_fmt_vid_cap(struct file *file, void *priv,
+			      struct v4l2_format *f)
+{
+	struct visl_ctx *ctx = visl_file_to_ctx(file);
+	int ret;
+
+	dprintk(ctx->dev, "Trying to set the CAPTURE format to:\n");
+	visl_print_fmt(ctx, f);
+
+	ret = visl_try_fmt_vid_cap(file, priv, f);
+	if (ret)
+		return ret;
+
+	ctx->decoded_fmt = *f;
+
+	dprintk(ctx->dev, "CAPTURE format was set to:\n");
+	visl_print_fmt(ctx, &ctx->decoded_fmt);
+
+	visl_tpg_init(ctx);
+	return 0;
+}
+
+static int visl_enum_framesizes(struct file *file, void *priv,
+				struct v4l2_frmsizeenum *fsize)
+{
+	const struct visl_coded_format_desc *fmt;
+	struct visl_ctx *ctx = visl_file_to_ctx(file);
+
+	if (fsize->index != 0)
+		return -EINVAL;
+
+	fmt = visl_find_coded_fmt_desc(fsize->pixel_format);
+	if (!fmt) {
+		dprintk(ctx->dev,
+			"Unsupported format for the OUTPUT queue: %d\n",
+			fsize->pixel_format);
+
+		return -EINVAL;
+	}
+
+	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+	fsize->stepwise = fmt->frmsize;
+	return 0;
+}
+
+const struct v4l2_ioctl_ops visl_ioctl_ops = {
+	.vidioc_querycap		= visl_querycap,
+	.vidioc_enum_framesizes		= visl_enum_framesizes,
+
+	.vidioc_enum_fmt_vid_cap	= visl_enum_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap_mplane	= visl_g_fmt_vid_cap,
+	.vidioc_try_fmt_vid_cap_mplane	= visl_try_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap_mplane	= visl_s_fmt_vid_cap,
+
+	.vidioc_enum_fmt_vid_out	= visl_enum_fmt_vid_out,
+	.vidioc_g_fmt_vid_out_mplane	= visl_g_fmt_vid_out,
+	.vidioc_try_fmt_vid_out_mplane	= visl_try_fmt_vid_out,
+	.vidioc_s_fmt_vid_out_mplane	= visl_s_fmt_vid_out,
+
+	.vidioc_reqbufs			= v4l2_m2m_ioctl_reqbufs,
+	.vidioc_querybuf		= v4l2_m2m_ioctl_querybuf,
+	.vidioc_qbuf			= v4l2_m2m_ioctl_qbuf,
+	.vidioc_dqbuf			= v4l2_m2m_ioctl_dqbuf,
+	.vidioc_prepare_buf		= v4l2_m2m_ioctl_prepare_buf,
+	.vidioc_create_bufs		= v4l2_m2m_ioctl_create_bufs,
+	.vidioc_expbuf			= v4l2_m2m_ioctl_expbuf,
+	.vidioc_remove_bufs		= v4l2_m2m_ioctl_remove_bufs,
+
+	.vidioc_streamon		= v4l2_m2m_ioctl_streamon,
+	.vidioc_streamoff		= v4l2_m2m_ioctl_streamoff,
+
+	.vidioc_decoder_cmd		= v4l2_m2m_ioctl_stateless_decoder_cmd,
+	.vidioc_try_decoder_cmd		= v4l2_m2m_ioctl_stateless_try_decoder_cmd,
+
+	.vidioc_subscribe_event		= v4l2_ctrl_subscribe_event,
+	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+};
+
+static int visl_queue_setup(struct vb2_queue *vq,
+			    unsigned int *nbuffers,
+			    unsigned int *num_planes,
+			    unsigned int sizes[],
+			    struct device *alloc_devs[])
+{
+	struct visl_ctx *ctx = vb2_get_drv_priv(vq);
+	struct v4l2_format *f;
+	u32 i;
+	char *qname;
+
+	if (V4L2_TYPE_IS_OUTPUT(vq->type)) {
+		f = &ctx->coded_fmt;
+		qname = "Output";
+	} else {
+		f = &ctx->decoded_fmt;
+		qname = "Capture";
+	}
+
+	if (*num_planes) {
+		if (*num_planes != f->fmt.pix_mp.num_planes)
+			return -EINVAL;
+
+		for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
+			if (sizes[i] < f->fmt.pix_mp.plane_fmt[i].sizeimage)
+				return -EINVAL;
+		}
+	} else {
+		*num_planes = f->fmt.pix_mp.num_planes;
+		for (i = 0; i < f->fmt.pix_mp.num_planes; i++)
+			sizes[i] = f->fmt.pix_mp.plane_fmt[i].sizeimage;
+	}
+
+	dprintk(ctx->dev, "%s: %d buffer(s) requested, num_planes=%d.\n",
+		qname, *nbuffers, *num_planes);
+
+	for (i = 0; i < f->fmt.pix_mp.num_planes; i++)
+		dprintk(ctx->dev, "plane[%d].sizeimage=%d\n",
+			i, f->fmt.pix_mp.plane_fmt[i].sizeimage);
+
+	return 0;
+}
+
+static void visl_queue_cleanup(struct vb2_queue *vq, u32 state)
+{
+	struct visl_ctx *ctx = vb2_get_drv_priv(vq);
+	struct vb2_v4l2_buffer *vbuf;
+
+	dprintk(ctx->dev, "Cleaning up queues\n");
+	for (;;) {
+		if (V4L2_TYPE_IS_OUTPUT(vq->type))
+			vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+		else
+			vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+
+		if (!vbuf)
+			break;
+
+		v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req,
+					   &ctx->hdl);
+		dprintk(ctx->dev, "Marked request %p as complete\n",
+			vbuf->vb2_buf.req_obj.req);
+
+		v4l2_m2m_buf_done(vbuf, state);
+		dprintk(ctx->dev,
+			"Marked buffer %llu as done, state is %d\n",
+			vbuf->vb2_buf.timestamp,
+			state);
+	}
+}
+
+static int visl_buf_out_validate(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+
+	vbuf->field = V4L2_FIELD_NONE;
+	return 0;
+}
+
+static int visl_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vb2_queue *vq = vb->vb2_queue;
+	struct visl_ctx *ctx = vb2_get_drv_priv(vq);
+	u32 plane_sz = vb2_plane_size(vb, 0);
+	struct v4l2_pix_format *pix_fmt;
+
+	if (V4L2_TYPE_IS_OUTPUT(vq->type)) {
+		pix_fmt = &ctx->coded_fmt.fmt.pix;
+	} else {
+		pix_fmt = &ctx->decoded_fmt.fmt.pix;
+		vb2_set_plane_payload(vb, 0, pix_fmt->sizeimage);
+	}
+
+	if (plane_sz < pix_fmt->sizeimage) {
+		v4l2_err(&ctx->dev->v4l2_dev, "plane[0] size is %d, sizeimage is %d\n",
+			 plane_sz, pix_fmt->sizeimage);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int visl_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+	struct visl_ctx *ctx = vb2_get_drv_priv(vq);
+	struct visl_q_data *q_data = get_q_data(ctx, vq->type);
+	int rc = 0;
+
+	if (!q_data) {
+		rc = -EINVAL;
+		goto err;
+	}
+
+	q_data->sequence = 0;
+
+	if (V4L2_TYPE_IS_CAPTURE(vq->type)) {
+		ctx->capture_streamon_jiffies = get_jiffies_64();
+		return 0;
+	}
+
+	if (WARN_ON(!ctx->coded_format_desc)) {
+		rc =  -EINVAL;
+		goto err;
+	}
+
+	return 0;
+
+err:
+	visl_queue_cleanup(vq, VB2_BUF_STATE_QUEUED);
+	return rc;
+}
+
+static void visl_stop_streaming(struct vb2_queue *vq)
+{
+	struct visl_ctx *ctx = vb2_get_drv_priv(vq);
+
+	dprintk(ctx->dev, "Stop streaming\n");
+	visl_queue_cleanup(vq, VB2_BUF_STATE_ERROR);
+
+	if (!keep_bitstream_buffers)
+		visl_debugfs_clear_bitstream(ctx->dev);
+}
+
+static void visl_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct visl_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
+}
+
+static void visl_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct visl_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->hdl);
+}
+
+static const struct vb2_ops visl_qops = {
+	.queue_setup          = visl_queue_setup,
+	.buf_out_validate     = visl_buf_out_validate,
+	.buf_prepare          = visl_buf_prepare,
+	.buf_queue            = visl_buf_queue,
+	.start_streaming      = visl_start_streaming,
+	.stop_streaming       = visl_stop_streaming,
+	.buf_request_complete = visl_buf_request_complete,
+};
+
+int visl_queue_init(void *priv, struct vb2_queue *src_vq,
+		    struct vb2_queue *dst_vq)
+{
+	struct visl_ctx *ctx = priv;
+	int ret;
+
+	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+	src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+	src_vq->drv_priv = ctx;
+	src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+	src_vq->ops = &visl_qops;
+	src_vq->mem_ops = &vb2_vmalloc_memops;
+	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	src_vq->lock = &ctx->vb_mutex;
+	src_vq->supports_requests = true;
+	src_vq->subsystem_flags |= VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF;
+
+	ret = vb2_queue_init(src_vq);
+	if (ret)
+		return ret;
+
+	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+	dst_vq->drv_priv = ctx;
+	dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+	dst_vq->ops = &visl_qops;
+	dst_vq->mem_ops = &vb2_vmalloc_memops;
+	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	dst_vq->lock = &ctx->vb_mutex;
+
+	return vb2_queue_init(dst_vq);
+}
+
+int visl_request_validate(struct media_request *req)
+{
+	struct media_request_object *obj;
+	struct visl_ctx *ctx = NULL;
+	unsigned int count;
+
+	list_for_each_entry(obj, &req->objects, list) {
+		struct vb2_buffer *vb;
+
+		if (vb2_request_object_is_buffer(obj)) {
+			vb = container_of(obj, struct vb2_buffer, req_obj);
+			ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+			break;
+		}
+	}
+
+	if (!ctx)
+		return -ENOENT;
+
+	count = vb2_request_buffer_cnt(req);
+	if (!count) {
+		v4l2_err(&ctx->dev->v4l2_dev,
+			 "No buffer was provided with the request\n");
+		return -ENOENT;
+	} else if (count > 1) {
+		v4l2_err(&ctx->dev->v4l2_dev,
+			 "More than one buffer was provided with the request\n");
+		return -EINVAL;
+	}
+
+	return vb2_request_validate(req);
+}
diff --git a/drivers/media/test-drivers/visl/visl-video.h b/drivers/media/test-drivers/visl/visl-video.h
new file mode 100644
index 000000000..92e274894
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl-video.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Contains the driver implementation for the V4L2 stateless interface.
+ */
+
+#ifndef _VISL_VIDEO_H_
+#define _VISL_VIDEO_H_
+#include <media/v4l2-mem2mem.h>
+
+#include "visl.h"
+
+extern const struct v4l2_ioctl_ops visl_ioctl_ops;
+
+extern const struct visl_ctrls visl_fwht_ctrls;
+extern const struct visl_ctrls visl_mpeg2_ctrls;
+extern const struct visl_ctrls visl_vp8_ctrls;
+extern const struct visl_ctrls visl_vp9_ctrls;
+extern const struct visl_ctrls visl_h264_ctrls;
+extern const struct visl_ctrls visl_hevc_ctrls;
+extern const struct visl_ctrls visl_av1_ctrls;
+
+int visl_queue_init(void *priv, struct vb2_queue *src_vq,
+		    struct vb2_queue *dst_vq);
+
+int visl_set_default_format(struct visl_ctx *ctx);
+int visl_request_validate(struct media_request *req);
+
+#endif /* _VISL_VIDEO_H_ */
diff --git a/drivers/media/test-drivers/visl/visl.h b/drivers/media/test-drivers/visl/visl.h
new file mode 100644
index 000000000..2971e8b37
--- /dev/null
+++ b/drivers/media/test-drivers/visl/visl.h
@@ -0,0 +1,173 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A virtual stateless device for stateless uAPI development purposes.
+ *
+ * This tool's objective is to help the development and testing of userspace
+ * applications that use the V4L2 stateless API to decode media.
+ *
+ * A userspace implementation can use visl to run a decoding loop even when no
+ * hardware is available or when the kernel uAPI for the codec has not been
+ * upstreamed yet. This can reveal bugs at an early stage.
+ *
+ * This driver can also trace the contents of the V4L2 controls submitted to it.
+ * It can also dump the contents of the vb2 buffers through a debugfs
+ * interface. This is in many ways similar to the tracing infrastructure
+ * available for other popular encode/decode APIs out there and can help develop
+ * a userspace application by using another (working) one as a reference.
+ *
+ * Note that no actual decoding of video frames is performed by visl. The V4L2
+ * test pattern generator is used to write various debug information to the
+ * capture buffers instead.
+ *
+ * Copyright (C) 2022 Collabora, Ltd.
+ *
+ * Based on the vim2m driver, that is:
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ * Pawel Osciak, <pawel@osciak.com>
+ * Marek Szyprowski, <m.szyprowski@samsung.com>
+ *
+ * Based on the vicodec driver, that is:
+ *
+ * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ *
+ * Based on the Cedrus VPU driver, that is:
+ *
+ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
+ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+ * Copyright (C) 2018 Bootlin
+ */
+
+#ifndef _VISL_H_
+#define _VISL_H_
+
+#include <linux/debugfs.h>
+#include <linux/list.h>
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/tpg/v4l2-tpg.h>
+
+#define VISL_NAME		"visl"
+#define VISL_M2M_NQUEUES	2
+
+#define TPG_STR_BUF_SZ		2048
+
+extern unsigned int visl_transtime_ms;
+
+struct visl_ctrls {
+	const struct visl_ctrl_desc *ctrls;
+	unsigned int num_ctrls;
+};
+
+struct visl_coded_format_desc {
+	u32 pixelformat;
+	struct v4l2_frmsize_stepwise frmsize;
+	const struct visl_ctrls *ctrls;
+	unsigned int num_decoded_fmts;
+	const u32 *decoded_fmts;
+};
+
+extern const struct visl_coded_format_desc visl_coded_fmts[];
+extern const size_t num_coded_fmts;
+
+enum {
+	V4L2_M2M_SRC = 0,
+	V4L2_M2M_DST = 1,
+};
+
+extern unsigned int visl_debug;
+#define dprintk(dev, fmt, arg...) \
+	v4l2_dbg(1, visl_debug, &(dev)->v4l2_dev, "%s: " fmt, __func__, ## arg)
+
+extern int visl_dprintk_frame_start;
+extern unsigned int visl_dprintk_nframes;
+extern bool keep_bitstream_buffers;
+extern int bitstream_trace_frame_start;
+extern unsigned int bitstream_trace_nframes;
+extern bool tpg_verbose;
+
+#define frame_dprintk(dev, current, fmt, arg...) \
+	do { \
+		if (visl_dprintk_frame_start > -1 && \
+		    (current) >= visl_dprintk_frame_start && \
+		    (current) < visl_dprintk_frame_start + visl_dprintk_nframes) \
+			dprintk(dev, fmt, ## arg); \
+	} while (0) \
+
+struct visl_q_data {
+	unsigned int		sequence;
+};
+
+struct visl_dev {
+	struct v4l2_device	v4l2_dev;
+	struct video_device	vfd;
+#ifdef CONFIG_MEDIA_CONTROLLER
+	struct media_device	mdev;
+#endif
+
+	struct mutex		dev_mutex;
+
+	struct v4l2_m2m_dev	*m2m_dev;
+
+#ifdef CONFIG_VISL_DEBUGFS
+	struct dentry		*debugfs_root;
+	struct dentry		*bitstream_debugfs;
+	struct list_head	bitstream_blobs;
+
+	/* Protects the "blob" list */
+	struct mutex		bitstream_lock;
+#endif
+};
+
+enum visl_codec {
+	VISL_CODEC_NONE,
+	VISL_CODEC_FWHT,
+	VISL_CODEC_MPEG2,
+	VISL_CODEC_VP8,
+	VISL_CODEC_VP9,
+	VISL_CODEC_H264,
+	VISL_CODEC_HEVC,
+	VISL_CODEC_AV1,
+};
+
+struct visl_blob {
+	struct list_head list;
+	struct dentry *dentry;
+	struct debugfs_blob_wrapper blob;
+};
+
+struct visl_ctx {
+	struct v4l2_fh		fh;
+	struct visl_dev	*dev;
+	struct v4l2_ctrl_handler hdl;
+
+	struct mutex		vb_mutex;
+
+	struct visl_q_data	q_data[VISL_M2M_NQUEUES];
+	enum   visl_codec	current_codec;
+
+	const struct visl_coded_format_desc *coded_format_desc;
+
+	struct v4l2_format	coded_fmt;
+	struct v4l2_format	decoded_fmt;
+
+	struct tpg_data		tpg;
+	u64			capture_streamon_jiffies;
+	char			*tpg_str_buf;
+};
+
+struct visl_ctrl_desc {
+	struct v4l2_ctrl_config cfg;
+};
+
+static inline struct visl_ctx *visl_file_to_ctx(struct file *file)
+{
+	return container_of(file_to_v4l2_fh(file), struct visl_ctx, fh);
+}
+
+void *visl_find_control_data(struct visl_ctx *ctx, u32 id);
+struct v4l2_ctrl *visl_find_control(struct visl_ctx *ctx, u32 id);
+u32 visl_control_num_elems(struct visl_ctx *ctx, u32 id);
+
+#endif /* _VISL_H_ */
diff --git a/drivers/media/test-drivers/vivid/Kconfig b/drivers/media/test-drivers/vivid/Kconfig
new file mode 100644
index 000000000..cc470070a
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/Kconfig
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_VIVID
+	tristate "Virtual Video Test Driver"
+	depends on VIDEO_DEV && !SPARC32 && !SPARC64
+	depends on HAS_DMA
+	select FONT_SUPPORT
+	select FONT_8x16
+	select VIDEOBUF2_VMALLOC
+	select VIDEOBUF2_DMA_CONTIG
+	select VIDEO_V4L2_TPG
+	select MEDIA_CONTROLLER
+	help
+	  Enables a virtual video driver. This driver emulates a webcam,
+	  TV, S-Video and HDMI capture hardware, including VBI support for
+	  the SDTV inputs. Also video output, VBI output, radio receivers,
+	  transmitters and software defined radio capture is emulated.
+
+	  It is highly configurable and is ideal for testing applications.
+	  Error injection is supported to test rare errors that are hard
+	  to reproduce in real hardware.
+
+	  Say Y here if you want to test video apps or debug V4L devices.
+	  When in doubt, say N.
+
+config VIDEO_VIVID_CEC
+	bool "Enable CEC emulation support"
+	depends on VIDEO_VIVID
+	select CEC_CORE
+	help
+	  When selected the vivid module will emulate the optional
+	  HDMI CEC feature.
+
+config VIDEO_VIVID_OSD
+	bool "Enable Framebuffer for testing Output Overlay"
+	depends on VIDEO_VIVID && FB_CORE
+	depends on VIDEO_VIVID=m || FB_CORE=y
+	default y
+	select FB_IOMEM_HELPERS
+	help
+	  When selected the vivid module will emulate a Framebuffer for
+	  testing Output Overlay.
+
+config VIDEO_VIVID_MAX_DEVS
+	int "Maximum number of devices"
+	depends on VIDEO_VIVID
+	default "64"
+	help
+	  This allows you to specify the maximum number of devices supported
+	  by the vivid driver.
diff --git a/drivers/media/test-drivers/vivid/Makefile b/drivers/media/test-drivers/vivid/Makefile
new file mode 100644
index 000000000..284a59e97
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/Makefile
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+vivid-objs := vivid-core.o vivid-ctrls.o vivid-vid-common.o vivid-vbi-gen.o \
+		vivid-vid-cap.o vivid-vid-out.o vivid-kthread-cap.o vivid-kthread-out.o \
+		vivid-radio-rx.o vivid-radio-tx.o vivid-radio-common.o \
+		vivid-rds-gen.o vivid-sdr-cap.o vivid-vbi-cap.o vivid-vbi-out.o \
+		vivid-meta-cap.o vivid-meta-out.o \
+		vivid-kthread-touch.o vivid-touch-cap.o
+ifeq ($(CONFIG_VIDEO_VIVID_CEC),y)
+  vivid-objs += vivid-cec.o
+endif
+ifeq ($(CONFIG_VIDEO_VIVID_OSD),y)
+  vivid-objs += vivid-osd.o
+endif
+
+obj-$(CONFIG_VIDEO_VIVID) += vivid.o
diff --git a/drivers/media/test-drivers/vivid/vivid-cec.c b/drivers/media/test-drivers/vivid/vivid-cec.c
new file mode 100644
index 000000000..2d15fdd5d
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-cec.c
@@ -0,0 +1,415 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-cec.c - A Virtual Video Test Driver, cec emulation
+ *
+ * Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/delay.h>
+#include <media/cec.h>
+
+#include "vivid-core.h"
+#include "vivid-cec.h"
+
+#define CEC_START_BIT_US		4500
+#define CEC_DATA_BIT_US			2400
+#define CEC_MARGIN_US			350
+
+struct xfer_on_bus {
+	struct cec_adapter	*adap;
+	u8			status;
+};
+
+static bool find_dest_adap(struct vivid_dev *dev,
+			   struct cec_adapter *adap, u8 dest)
+{
+	unsigned int i, j;
+
+	if (dest >= 0xf)
+		return false;
+
+	if (adap != dev->cec_rx_adap && dev->cec_rx_adap &&
+	    dev->cec_rx_adap->is_configured &&
+	    cec_has_log_addr(dev->cec_rx_adap, dest))
+		return true;
+
+	for (i = 0, j = 0; i < dev->num_inputs; i++) {
+		unsigned int menu_idx =
+			dev->input_is_connected_to_output[i];
+
+		if (dev->input_type[i] != HDMI)
+			continue;
+		j++;
+		if (menu_idx < FIXED_MENU_ITEMS)
+			continue;
+
+		struct vivid_dev *dev_tx = vivid_ctrl_hdmi_to_output_instance[menu_idx];
+		unsigned int output = vivid_ctrl_hdmi_to_output_index[menu_idx];
+
+		if (!dev_tx)
+			continue;
+
+		unsigned int hdmi_output = dev_tx->output_to_iface_index[output];
+
+		if (adap == dev_tx->cec_tx_adap[hdmi_output])
+			continue;
+		if (!dev_tx->cec_tx_adap[hdmi_output]->is_configured)
+			continue;
+		if (cec_has_log_addr(dev_tx->cec_tx_adap[hdmi_output], dest))
+			return true;
+	}
+	return false;
+}
+
+static bool xfer_ready(struct vivid_dev *dev)
+{
+	unsigned int i;
+	bool ready = false;
+
+	spin_lock(&dev->cec_xfers_slock);
+	for (i = 0; i < ARRAY_SIZE(dev->xfers); i++) {
+		if (dev->xfers[i].sft &&
+		    dev->xfers[i].sft <= dev->cec_sft) {
+			ready = true;
+			break;
+		}
+	}
+	spin_unlock(&dev->cec_xfers_slock);
+
+	return ready;
+}
+
+/*
+ * If an adapter tries to send successive messages, it must wait for the
+ * longest signal-free time between its transmissions. But, if another
+ * adapter sends a message in the interim, then the wait can be reduced
+ * because the messages are no longer successive. Make these adjustments
+ * if necessary. Should be called holding cec_xfers_slock.
+ */
+static void adjust_sfts(struct vivid_dev *dev)
+{
+	unsigned int i;
+	u8 initiator;
+
+	for (i = 0; i < ARRAY_SIZE(dev->xfers); i++) {
+		if (dev->xfers[i].sft <= CEC_SIGNAL_FREE_TIME_RETRY)
+			continue;
+		initiator = dev->xfers[i].msg[0] >> 4;
+		if (initiator == dev->last_initiator)
+			dev->xfers[i].sft = CEC_SIGNAL_FREE_TIME_NEXT_XFER;
+		else
+			dev->xfers[i].sft = CEC_SIGNAL_FREE_TIME_NEW_INITIATOR;
+	}
+}
+
+/*
+ * The main emulation of the bus on which CEC adapters attempt to send
+ * messages to each other. The bus keeps track of how long it has been
+ * signal-free and accepts a pending transmission only if the state of
+ * the bus matches the transmission's signal-free requirements. It calls
+ * cec_transmit_attempt_done() for all transmits that enter the bus and
+ * cec_received_msg() for successful transmits.
+ */
+int vivid_cec_bus_thread(void *_dev)
+{
+	u32 last_sft;
+	unsigned int i, j;
+	unsigned int dest;
+	ktime_t start, end;
+	s64 delta_us, retry_us;
+	struct vivid_dev *dev = _dev;
+
+	dev->cec_sft = CEC_SIGNAL_FREE_TIME_NEXT_XFER;
+	for (;;) {
+		bool first = true;
+		int wait_xfer_us = 0;
+		bool valid_dest = false;
+		int wait_arb_lost_us = 0;
+		unsigned int first_idx = 0;
+		unsigned int first_status = 0;
+		struct cec_msg first_msg = {};
+		struct xfer_on_bus xfers_on_bus[MAX_OUTPUTS] = {};
+
+		wait_event_interruptible(dev->kthread_waitq_cec, xfer_ready(dev) ||
+					 kthread_should_stop());
+		if (kthread_should_stop())
+			break;
+		last_sft = dev->cec_sft;
+		dev->cec_sft = 0;
+		/*
+		 * Move the messages that are ready onto the bus. The adapter with
+		 * the most leading zeros will win control of the bus and any other
+		 * adapters will lose arbitration.
+		 */
+		spin_lock(&dev->cec_xfers_slock);
+		for (i = 0; i < ARRAY_SIZE(dev->xfers); i++) {
+			if (!dev->xfers[i].sft || dev->xfers[i].sft > last_sft)
+				continue;
+			if (first) {
+				first = false;
+				first_idx = i;
+				xfers_on_bus[first_idx].adap = dev->xfers[i].adap;
+				memcpy(first_msg.msg, dev->xfers[i].msg, dev->xfers[i].len);
+				first_msg.len = dev->xfers[i].len;
+			} else {
+				xfers_on_bus[i].adap = dev->xfers[i].adap;
+				xfers_on_bus[i].status = CEC_TX_STATUS_ARB_LOST;
+				/*
+				 * For simplicity wait for all 4 bits of the initiator's
+				 * address even though HDMI specification uses bit-level
+				 * precision.
+				 */
+				wait_arb_lost_us = 4 * CEC_DATA_BIT_US + CEC_START_BIT_US;
+			}
+			dev->xfers[i].sft = 0;
+		}
+		dev->last_initiator = cec_msg_initiator(&first_msg);
+		adjust_sfts(dev);
+		spin_unlock(&dev->cec_xfers_slock);
+
+		dest = cec_msg_destination(&first_msg);
+		valid_dest = cec_msg_is_broadcast(&first_msg);
+		if (!valid_dest)
+			valid_dest = find_dest_adap(dev, xfers_on_bus[first_idx].adap, dest);
+		if (valid_dest) {
+			first_status = CEC_TX_STATUS_OK;
+			/*
+			 * Message length is in bytes, but each byte is transmitted in
+			 * a block of 10 bits.
+			 */
+			wait_xfer_us = first_msg.len * 10 * CEC_DATA_BIT_US;
+		} else {
+			first_status = CEC_TX_STATUS_NACK;
+			/*
+			 * A message that is not acknowledged stops transmitting after
+			 * the header block of 10 bits.
+			 */
+			wait_xfer_us = 10 * CEC_DATA_BIT_US;
+		}
+		wait_xfer_us += CEC_START_BIT_US;
+		xfers_on_bus[first_idx].status = first_status;
+
+		/* Sleep as if sending messages on a real hardware bus. */
+		start = ktime_get();
+		if (wait_arb_lost_us) {
+			usleep_range(wait_arb_lost_us - CEC_MARGIN_US, wait_arb_lost_us);
+			for (i = 0; i < ARRAY_SIZE(xfers_on_bus); i++) {
+				if (xfers_on_bus[i].status != CEC_TX_STATUS_ARB_LOST)
+					continue;
+				cec_transmit_attempt_done(xfers_on_bus[i].adap,
+							  CEC_TX_STATUS_ARB_LOST);
+			}
+			if (kthread_should_stop())
+				break;
+		}
+		wait_xfer_us -= wait_arb_lost_us;
+		usleep_range(wait_xfer_us - CEC_MARGIN_US, wait_xfer_us);
+		cec_transmit_attempt_done(xfers_on_bus[first_idx].adap, first_status);
+		if (kthread_should_stop())
+			break;
+		if (first_status == CEC_TX_STATUS_OK) {
+			if (xfers_on_bus[first_idx].adap != dev->cec_rx_adap)
+				cec_received_msg(dev->cec_rx_adap, &first_msg);
+			for (i = 0, j = 0; i < dev->num_inputs; i++) {
+				unsigned int menu_idx =
+					dev->input_is_connected_to_output[i];
+
+				if (dev->input_type[i] != HDMI)
+					continue;
+				j++;
+				if (menu_idx < FIXED_MENU_ITEMS)
+					continue;
+
+				struct vivid_dev *dev_tx = vivid_ctrl_hdmi_to_output_instance[menu_idx];
+				unsigned int output = vivid_ctrl_hdmi_to_output_index[menu_idx];
+
+				if (!dev_tx)
+					continue;
+
+				unsigned int hdmi_output = dev_tx->output_to_iface_index[output];
+
+				if (xfers_on_bus[first_idx].adap != dev_tx->cec_tx_adap[hdmi_output])
+					cec_received_msg(dev_tx->cec_tx_adap[hdmi_output], &first_msg);
+			}
+		}
+		end = ktime_get();
+		/*
+		 * If the emulated transfer took more or less time than it should
+		 * have, then compensate by adjusting the wait time needed for the
+		 * bus to be signal-free for 3 bit periods (the retry time).
+		 */
+		delta_us = div_s64(end - start, 1000);
+		delta_us -= wait_xfer_us + wait_arb_lost_us;
+		retry_us = CEC_SIGNAL_FREE_TIME_RETRY * CEC_DATA_BIT_US - delta_us;
+		if (retry_us > CEC_MARGIN_US)
+			usleep_range(retry_us - CEC_MARGIN_US, retry_us);
+		dev->cec_sft = CEC_SIGNAL_FREE_TIME_RETRY;
+		/*
+		 * If there are no messages that need to be retried, check if any
+		 * adapters that did not just transmit a message are ready to
+		 * transmit. If none of these adapters are ready, then increase
+		 * the signal-free time so that the bus is available to all
+		 * adapters and go back to waiting for a transmission.
+		 */
+		while (dev->cec_sft >= CEC_SIGNAL_FREE_TIME_RETRY &&
+		       dev->cec_sft < CEC_SIGNAL_FREE_TIME_NEXT_XFER &&
+		       !xfer_ready(dev) && !kthread_should_stop()) {
+			usleep_range(2 * CEC_DATA_BIT_US - CEC_MARGIN_US,
+				     2 * CEC_DATA_BIT_US);
+			dev->cec_sft += 2;
+		}
+	}
+	return 0;
+}
+
+static int vivid_cec_adap_enable(struct cec_adapter *adap, bool enable)
+{
+	adap->cec_pin_is_high = true;
+	return 0;
+}
+
+static int vivid_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr)
+{
+	return 0;
+}
+
+static int vivid_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
+				   u32 signal_free_time, struct cec_msg *msg)
+{
+	struct vivid_dev *dev = cec_get_drvdata(adap);
+	struct vivid_dev *dev_rx = dev;
+	u8 idx = cec_msg_initiator(msg);
+	u8 output = 0;
+
+	if (dev->cec_rx_adap != adap) {
+		int i;
+
+		for (i = 0; i < dev->num_hdmi_outputs; i++)
+			if (dev->cec_tx_adap[i] == adap)
+				break;
+		if (i == dev->num_hdmi_outputs)
+			return -ENONET;
+		output = dev->hdmi_index_to_output_index[i];
+		dev_rx = dev->output_to_input_instance[output];
+		if (!dev_rx)
+			return -ENONET;
+	}
+	spin_lock(&dev_rx->cec_xfers_slock);
+	dev_rx->xfers[idx].adap = adap;
+	memcpy(dev_rx->xfers[idx].msg, msg->msg, CEC_MAX_MSG_SIZE);
+	dev_rx->xfers[idx].len = msg->len;
+	dev_rx->xfers[idx].sft = CEC_SIGNAL_FREE_TIME_RETRY;
+	if (signal_free_time > CEC_SIGNAL_FREE_TIME_RETRY) {
+		if (idx == dev_rx->last_initiator)
+			dev_rx->xfers[idx].sft = CEC_SIGNAL_FREE_TIME_NEXT_XFER;
+		else
+			dev_rx->xfers[idx].sft = CEC_SIGNAL_FREE_TIME_NEW_INITIATOR;
+	}
+	spin_unlock(&dev_rx->cec_xfers_slock);
+	wake_up_interruptible(&dev_rx->kthread_waitq_cec);
+
+	return 0;
+}
+
+static int vivid_received(struct cec_adapter *adap, struct cec_msg *msg)
+{
+	struct vivid_dev *dev = cec_get_drvdata(adap);
+	struct cec_msg reply;
+	u8 dest = cec_msg_destination(msg);
+
+	if (cec_msg_is_broadcast(msg))
+		dest = adap->log_addrs.log_addr[0];
+	cec_msg_init(&reply, dest, cec_msg_initiator(msg));
+
+	switch (cec_msg_opcode(msg)) {
+	case CEC_MSG_SET_OSD_STRING: {
+		u8 disp_ctl;
+		char osd[14];
+
+		if (!cec_is_sink(adap))
+			break;
+		cec_ops_set_osd_string(msg, &disp_ctl, osd);
+		switch (disp_ctl) {
+		case CEC_OP_DISP_CTL_DEFAULT:
+			strscpy(dev->osd, osd, sizeof(dev->osd));
+			dev->osd_jiffies = jiffies;
+			break;
+		case CEC_OP_DISP_CTL_UNTIL_CLEARED:
+			strscpy(dev->osd, osd, sizeof(dev->osd));
+			dev->osd_jiffies = 0;
+			break;
+		case CEC_OP_DISP_CTL_CLEAR:
+			dev->osd[0] = 0;
+			dev->osd_jiffies = 0;
+			break;
+		default:
+			cec_msg_feature_abort(&reply, cec_msg_opcode(msg),
+					      CEC_OP_ABORT_INVALID_OP);
+			cec_transmit_msg(adap, &reply, false);
+			break;
+		}
+		return 0;
+	}
+	case CEC_MSG_VENDOR_COMMAND_WITH_ID: {
+		u32 vendor_id;
+		u8 size;
+		const u8 *vendor_cmd;
+
+		/*
+		 * If we receive <Vendor Command With ID> with our vendor ID
+		 * and with a payload of size 1, and the payload value is odd,
+		 * then we reply with the same message, but with the payload
+		 * byte incremented by 1.
+		 *
+		 * If the size is 1 and the payload value is even, then we
+		 * ignore the message.
+		 *
+		 * The reason we reply to odd instead of even payload values
+		 * is that it allows for testing of the corner case where the
+		 * reply value is 0 (0xff + 1 % 256).
+		 *
+		 * For other sizes we Feature Abort.
+		 *
+		 * This is added for the specific purpose of testing the
+		 * CEC_MSG_FL_REPLY_VENDOR_ID flag using vivid.
+		 */
+		cec_ops_vendor_command_with_id(msg, &vendor_id, &size, &vendor_cmd);
+		if (vendor_id != adap->log_addrs.vendor_id)
+			break;
+		if (size == 1) {
+			// Ignore even op values
+			if (!(vendor_cmd[0] & 1))
+				return 0;
+			reply.len = msg->len;
+			memcpy(reply.msg + 1, msg->msg + 1, msg->len - 1);
+			reply.msg[msg->len - 1]++;
+		} else {
+			cec_msg_feature_abort(&reply, cec_msg_opcode(msg),
+					      CEC_OP_ABORT_INVALID_OP);
+		}
+		cec_transmit_msg(adap, &reply, false);
+		return 0;
+	}
+	}
+	return -ENOMSG;
+}
+
+static const struct cec_adap_ops vivid_cec_adap_ops = {
+	.adap_enable = vivid_cec_adap_enable,
+	.adap_log_addr = vivid_cec_adap_log_addr,
+	.adap_transmit = vivid_cec_adap_transmit,
+	.received = vivid_received,
+};
+
+struct cec_adapter *vivid_cec_alloc_adap(struct vivid_dev *dev,
+					 unsigned int idx,
+					 bool is_source)
+{
+	u32 caps = CEC_CAP_DEFAULTS | CEC_CAP_MONITOR_ALL | CEC_CAP_MONITOR_PIN;
+	char name[32];
+
+	snprintf(name, sizeof(name), "vivid-%03d-vid-%s%d",
+		 dev->inst, is_source ? "out" : "cap", idx);
+	return cec_allocate_adapter(&vivid_cec_adap_ops, dev,
+				    name, caps, CEC_MAX_LOG_ADDRS);
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-cec.h b/drivers/media/test-drivers/vivid/vivid-cec.h
new file mode 100644
index 000000000..b2bcddb50
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-cec.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-cec.h - A Virtual Video Test Driver, cec emulation
+ *
+ * Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifdef CONFIG_VIDEO_VIVID_CEC
+struct cec_adapter *vivid_cec_alloc_adap(struct vivid_dev *dev,
+					 unsigned int idx,
+					 bool is_source);
+int vivid_cec_bus_thread(void *_dev);
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c
new file mode 100644
index 000000000..62cfb5feb
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-core.c
@@ -0,0 +1,2340 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * vivid-core.c - A Virtual Video Test Driver, core initialization
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/font.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/videodev2.h>
+#include <linux/v4l2-dv-timings.h>
+#include <media/videobuf2-vmalloc.h>
+#include <media/videobuf2-dma-contig.h>
+#include <media/v4l2-dv-timings.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-event.h>
+
+#include "vivid-core.h"
+#include "vivid-vid-common.h"
+#include "vivid-vid-cap.h"
+#include "vivid-vid-out.h"
+#include "vivid-radio-common.h"
+#include "vivid-radio-rx.h"
+#include "vivid-radio-tx.h"
+#include "vivid-sdr-cap.h"
+#include "vivid-vbi-cap.h"
+#include "vivid-vbi-out.h"
+#include "vivid-osd.h"
+#include "vivid-cec.h"
+#include "vivid-ctrls.h"
+#include "vivid-meta-cap.h"
+#include "vivid-meta-out.h"
+#include "vivid-touch-cap.h"
+
+#define VIVID_MODULE_NAME "vivid"
+#define MAX_STRING_LENGTH 23
+
+MODULE_DESCRIPTION("Virtual Video Test Driver");
+MODULE_AUTHOR("Hans Verkuil");
+MODULE_LICENSE("GPL");
+
+unsigned int n_devs = 1;
+module_param(n_devs, uint, 0444);
+MODULE_PARM_DESC(n_devs, " number of driver instances to create");
+
+static int vid_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(vid_cap_nr, int, NULL, 0444);
+MODULE_PARM_DESC(vid_cap_nr, " videoX start number, -1 is autodetect");
+
+static int vid_out_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(vid_out_nr, int, NULL, 0444);
+MODULE_PARM_DESC(vid_out_nr, " videoX start number, -1 is autodetect");
+
+static int vbi_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(vbi_cap_nr, int, NULL, 0444);
+MODULE_PARM_DESC(vbi_cap_nr, " vbiX start number, -1 is autodetect");
+
+static int vbi_out_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(vbi_out_nr, int, NULL, 0444);
+MODULE_PARM_DESC(vbi_out_nr, " vbiX start number, -1 is autodetect");
+
+static int sdr_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(sdr_cap_nr, int, NULL, 0444);
+MODULE_PARM_DESC(sdr_cap_nr, " swradioX start number, -1 is autodetect");
+
+static int radio_rx_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(radio_rx_nr, int, NULL, 0444);
+MODULE_PARM_DESC(radio_rx_nr, " radioX start number, -1 is autodetect");
+
+static int radio_tx_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(radio_tx_nr, int, NULL, 0444);
+MODULE_PARM_DESC(radio_tx_nr, " radioX start number, -1 is autodetect");
+
+static int meta_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(meta_cap_nr, int, NULL, 0444);
+MODULE_PARM_DESC(meta_cap_nr, " videoX start number, -1 is autodetect");
+
+static int meta_out_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(meta_out_nr, int, NULL, 0444);
+MODULE_PARM_DESC(meta_out_nr, " videoX start number, -1 is autodetect");
+
+static int touch_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(touch_cap_nr, int, NULL, 0444);
+MODULE_PARM_DESC(touch_cap_nr, " v4l-touchX start number, -1 is autodetect");
+
+static int ccs_cap_mode[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(ccs_cap_mode, int, NULL, 0444);
+MODULE_PARM_DESC(ccs_cap_mode, " capture crop/compose/scale mode:\n"
+			   "\t\t    bit 0=crop, 1=compose, 2=scale,\n"
+			   "\t\t    -1=user-controlled (default)");
+
+static int ccs_out_mode[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 };
+module_param_array(ccs_out_mode, int, NULL, 0444);
+MODULE_PARM_DESC(ccs_out_mode, " output crop/compose/scale mode:\n"
+			   "\t\t    bit 0=crop, 1=compose, 2=scale,\n"
+			   "\t\t    -1=user-controlled (default)");
+
+static unsigned multiplanar[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 1 };
+module_param_array(multiplanar, uint, NULL, 0444);
+MODULE_PARM_DESC(multiplanar, " 1 (default) creates a single planar device, 2 creates a multiplanar device.");
+
+/*
+ * Default: video + vbi-cap (raw and sliced) + radio rx + radio tx + sdr +
+ * vbi-out + vid-out + meta-cap
+ */
+static unsigned int node_types[VIVID_MAX_DEVS] = {
+	[0 ... (VIVID_MAX_DEVS - 1)] = 0xe1d3d
+};
+module_param_array(node_types, uint, NULL, 0444);
+MODULE_PARM_DESC(node_types, " node types, default is 0xe1d3d. Bitmask with the following meaning:\n"
+			     "\t\t    bit 0: Video Capture node\n"
+			     "\t\t    bit 2-3: VBI Capture node: 0 = none, 1 = raw vbi, 2 = sliced vbi, 3 = both\n"
+			     "\t\t    bit 4: Radio Receiver node\n"
+			     "\t\t    bit 5: Software Defined Radio Receiver node\n"
+			     "\t\t    bit 8: Video Output node\n"
+			     "\t\t    bit 10-11: VBI Output node: 0 = none, 1 = raw vbi, 2 = sliced vbi, 3 = both\n"
+			     "\t\t    bit 12: Radio Transmitter node\n"
+#ifdef CONFIG_VIDEO_VIVID_OSD
+			     "\t\t    bit 16: Framebuffer for testing output overlays\n"
+#endif
+			     "\t\t    bit 17: Metadata Capture node\n"
+			     "\t\t    bit 18: Metadata Output node\n"
+			     "\t\t    bit 19: Touch Capture node\n");
+
+/* Default: 4 inputs */
+static unsigned num_inputs[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 4 };
+module_param_array(num_inputs, uint, NULL, 0444);
+MODULE_PARM_DESC(num_inputs, " number of inputs, default is 4");
+
+/* Default: input 0 = WEBCAM, 1 = TV, 2 = SVID, 3 = HDMI */
+static unsigned input_types[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 0xe4 };
+module_param_array(input_types, uint, NULL, 0444);
+MODULE_PARM_DESC(input_types, " input types, default is 0xe4. Two bits per input,\n"
+			      "\t\t    bits 0-1 == input 0, bits 31-30 == input 15.\n"
+			      "\t\t    Type 0 == webcam, 1 == TV, 2 == S-Video, 3 == HDMI");
+
+/* Default: 2 outputs */
+static unsigned num_outputs[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 2 };
+module_param_array(num_outputs, uint, NULL, 0444);
+MODULE_PARM_DESC(num_outputs, " number of outputs, default is 2");
+
+/* Default: output 0 = SVID, 1 = HDMI */
+static unsigned output_types[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 2 };
+module_param_array(output_types, uint, NULL, 0444);
+MODULE_PARM_DESC(output_types, " output types, default is 0x02. One bit per output,\n"
+			      "\t\t    bit 0 == output 0, bit 15 == output 15.\n"
+			      "\t\t    Type 0 == S-Video, 1 == HDMI");
+
+unsigned vivid_debug;
+module_param(vivid_debug, uint, 0644);
+MODULE_PARM_DESC(vivid_debug, " activates debug info");
+
+static bool no_error_inj;
+module_param(no_error_inj, bool, 0444);
+MODULE_PARM_DESC(no_error_inj, " if set disable the error injecting controls");
+
+static unsigned int allocators[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 0 };
+module_param_array(allocators, uint, NULL, 0444);
+MODULE_PARM_DESC(allocators, " memory allocator selection, default is 0.\n"
+			     "\t\t    0 == vmalloc\n"
+			     "\t\t    1 == dma-contig");
+
+static unsigned int cache_hints[VIVID_MAX_DEVS] = {
+	[0 ... (VIVID_MAX_DEVS - 1)] = 0
+};
+module_param_array(cache_hints, uint, NULL, 0444);
+MODULE_PARM_DESC(cache_hints, " user-space cache hints, default is 0.\n"
+			     "\t\t    0 == forbid\n"
+			     "\t\t    1 == allow");
+
+static unsigned int supports_requests[VIVID_MAX_DEVS] = {
+	[0 ... (VIVID_MAX_DEVS - 1)] = 1
+};
+module_param_array(supports_requests, uint, NULL, 0444);
+MODULE_PARM_DESC(supports_requests, " support for requests, default is 1.\n"
+			     "\t\t    0 == no support\n"
+			     "\t\t    1 == supports requests\n"
+			     "\t\t    2 == requires requests");
+
+struct vivid_dev *vivid_devs[VIVID_MAX_DEVS];
+
+DEFINE_SPINLOCK(hdmi_output_skip_mask_lock);
+struct workqueue_struct *update_hdmi_ctrls_workqueue;
+u64 hdmi_to_output_menu_skip_mask;
+u64 hdmi_input_update_outputs_mask;
+
+struct vivid_dev *vivid_ctrl_hdmi_to_output_instance[MAX_MENU_ITEMS];
+unsigned int vivid_ctrl_hdmi_to_output_index[MAX_MENU_ITEMS];
+
+char *vivid_ctrl_hdmi_to_output_strings[MAX_MENU_ITEMS + 1] = {
+	"Test Pattern Generator",
+	"None"
+};
+
+DEFINE_SPINLOCK(svid_output_skip_mask_lock);
+struct workqueue_struct *update_svid_ctrls_workqueue;
+u64 svid_to_output_menu_skip_mask;
+
+struct vivid_dev *vivid_ctrl_svid_to_output_instance[MAX_MENU_ITEMS];
+unsigned int vivid_ctrl_svid_to_output_index[MAX_MENU_ITEMS];
+
+char *vivid_ctrl_svid_to_output_strings[MAX_MENU_ITEMS + 1] = {
+	"Test Pattern Generator",
+	"None"
+};
+
+const struct v4l2_rect vivid_min_rect = {
+	0, 0, MIN_WIDTH, MIN_HEIGHT
+};
+
+const struct v4l2_rect vivid_max_rect = {
+	0, 0, MAX_WIDTH * MAX_ZOOM, MAX_HEIGHT * MAX_ZOOM
+};
+
+static const u8 vivid_hdmi_edid[256] = {
+	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
+	0x31, 0xd8, 0x34, 0x12, 0x00, 0x00, 0x00, 0x00,
+	0x22, 0x1a, 0x01, 0x03, 0x80, 0x60, 0x36, 0x78,
+	0x0f, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26,
+	0x0f, 0x50, 0x54, 0x2f, 0xcf, 0x00, 0x31, 0x59,
+	0x45, 0x59, 0x81, 0x80, 0x81, 0x40, 0x90, 0x40,
+	0x95, 0x00, 0xa9, 0x40, 0xb3, 0x00, 0x08, 0xe8,
+	0x00, 0x30, 0xf2, 0x70, 0x5a, 0x80, 0xb0, 0x58,
+	0x8a, 0x00, 0xc0, 0x1c, 0x32, 0x00, 0x00, 0x1e,
+	0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x55, 0x18,
+	0x87, 0x3c, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20,
+	0x20, 0x20, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x76,
+	0x69, 0x76, 0x69, 0x64, 0x0a, 0x20, 0x20, 0x20,
+	0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0x10,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x7b,
+
+	0x02, 0x03, 0x3f, 0xf1, 0x51, 0x61, 0x60, 0x5f,
+	0x5e, 0x5d, 0x10, 0x1f, 0x04, 0x13, 0x22, 0x21,
+	0x20, 0x05, 0x14, 0x02, 0x11, 0x01, 0x23, 0x09,
+	0x07, 0x07, 0x83, 0x01, 0x00, 0x00, 0x6d, 0x03,
+	0x0c, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x21, 0x00,
+	0x60, 0x01, 0x02, 0x03, 0x67, 0xd8, 0x5d, 0xc4,
+	0x01, 0x78, 0x00, 0x00, 0xe2, 0x00, 0xca, 0xe3,
+	0x05, 0x00, 0x00, 0xe3, 0x06, 0x01, 0x00, 0x4d,
+	0xd0, 0x00, 0xa0, 0xf0, 0x70, 0x3e, 0x80, 0x30,
+	0x20, 0x35, 0x00, 0xc0, 0x1c, 0x32, 0x00, 0x00,
+	0x1e, 0x1a, 0x36, 0x80, 0xa0, 0x70, 0x38, 0x1f,
+	0x40, 0x30, 0x20, 0x35, 0x00, 0xc0, 0x1c, 0x32,
+	0x00, 0x00, 0x1a, 0x1a, 0x1d, 0x00, 0x80, 0x51,
+	0xd0, 0x1c, 0x20, 0x40, 0x80, 0x35, 0x00, 0xc0,
+	0x1c, 0x32, 0x00, 0x00, 0x1c, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92,
+};
+
+static int vidioc_querycap(struct file *file, void  *priv,
+					struct v4l2_capability *cap)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	strscpy(cap->driver, "vivid", sizeof(cap->driver));
+	strscpy(cap->card, "vivid", sizeof(cap->card));
+	snprintf(cap->bus_info, sizeof(cap->bus_info),
+		 "platform:%s-%03d", VIVID_MODULE_NAME, dev->inst);
+
+	cap->capabilities = dev->vid_cap_caps | dev->vid_out_caps |
+		dev->vbi_cap_caps | dev->vbi_out_caps |
+		dev->radio_rx_caps | dev->radio_tx_caps |
+		dev->sdr_cap_caps | dev->meta_cap_caps |
+		dev->meta_out_caps | dev->touch_cap_caps |
+		V4L2_CAP_DEVICE_CAPS;
+	return 0;
+}
+
+static int vidioc_s_hw_freq_seek(struct file *file, void *priv, const struct v4l2_hw_freq_seek *a)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_RADIO)
+		return vivid_radio_rx_s_hw_freq_seek(file, priv, a);
+	return -ENOTTY;
+}
+
+static int vidioc_enum_freq_bands(struct file *file, void *priv, struct v4l2_frequency_band *band)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_RADIO)
+		return vivid_radio_rx_enum_freq_bands(file, priv, band);
+	if (vdev->vfl_type == VFL_TYPE_SDR)
+		return vivid_sdr_enum_freq_bands(file, priv, band);
+	return -ENOTTY;
+}
+
+static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_RADIO)
+		return vivid_radio_rx_g_tuner(file, priv, vt);
+	if (vdev->vfl_type == VFL_TYPE_SDR)
+		return vivid_sdr_g_tuner(file, priv, vt);
+	return vivid_video_g_tuner(file, priv, vt);
+}
+
+static int vidioc_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_RADIO)
+		return vivid_radio_rx_s_tuner(file, priv, vt);
+	if (vdev->vfl_type == VFL_TYPE_SDR)
+		return vivid_sdr_s_tuner(file, priv, vt);
+	return vivid_video_s_tuner(file, priv, vt);
+}
+
+static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_RADIO)
+		return vivid_radio_g_frequency(file,
+			vdev->vfl_dir == VFL_DIR_RX ?
+			&dev->radio_rx_freq : &dev->radio_tx_freq, vf);
+	if (vdev->vfl_type == VFL_TYPE_SDR)
+		return vivid_sdr_g_frequency(file, priv, vf);
+	return vivid_video_g_frequency(file, priv, vf);
+}
+
+static int vidioc_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *vf)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_RADIO)
+		return vivid_radio_s_frequency(file,
+			vdev->vfl_dir == VFL_DIR_RX ?
+			&dev->radio_rx_freq : &dev->radio_tx_freq, vf);
+	if (vdev->vfl_type == VFL_TYPE_SDR)
+		return vivid_sdr_s_frequency(file, priv, vf);
+	return vivid_video_s_frequency(file, priv, vf);
+}
+
+static int vidioc_overlay(struct file *file, void *priv, unsigned i)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return -ENOTTY;
+	return vivid_vid_out_overlay(file, priv, i);
+}
+
+static int vidioc_g_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *a)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return -ENOTTY;
+	return vivid_vid_out_g_fbuf(file, priv, a);
+}
+
+static int vidioc_s_fbuf(struct file *file, void *priv, const struct v4l2_framebuffer *a)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return -ENOTTY;
+	return vivid_vid_out_s_fbuf(file, priv, a);
+}
+
+static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return vivid_vid_cap_s_std(file, priv, id);
+	return vivid_vid_out_s_std(file, priv, id);
+}
+
+static int vidioc_s_dv_timings(struct file *file, void *priv, struct v4l2_dv_timings *timings)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return vivid_vid_cap_s_dv_timings(file, priv, timings);
+	return vivid_vid_out_s_dv_timings(file, priv, timings);
+}
+
+static int vidioc_g_pixelaspect(struct file *file, void *priv,
+				int type, struct v4l2_fract *f)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return vivid_vid_cap_g_pixelaspect(file, priv, type, f);
+	return vivid_vid_out_g_pixelaspect(file, priv, type, f);
+}
+
+static int vidioc_g_selection(struct file *file, void *priv,
+			      struct v4l2_selection *sel)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return vivid_vid_cap_g_selection(file, priv, sel);
+	return vivid_vid_out_g_selection(file, priv, sel);
+}
+
+static int vidioc_s_selection(struct file *file, void *priv,
+			      struct v4l2_selection *sel)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return vivid_vid_cap_s_selection(file, priv, sel);
+	return vivid_vid_out_s_selection(file, priv, sel);
+}
+
+static int vidioc_g_parm(struct file *file, void *priv,
+			  struct v4l2_streamparm *parm)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_g_parm_tch(file, priv, parm);
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return vivid_vid_cap_g_parm(file, priv, parm);
+	return vivid_vid_out_g_parm(file, priv, parm);
+}
+
+static int vidioc_s_parm(struct file *file, void *priv,
+			  struct v4l2_streamparm *parm)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return vivid_vid_cap_s_parm(file, priv, parm);
+	return -ENOTTY;
+}
+
+static int vidioc_log_status(struct file *file, void *priv)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct video_device *vdev = video_devdata(file);
+
+	v4l2_ctrl_log_status(file, priv);
+	if (vdev->vfl_dir == VFL_DIR_RX && vdev->vfl_type == VFL_TYPE_VIDEO)
+		tpg_log_status(&dev->tpg);
+	return 0;
+}
+
+static ssize_t vivid_radio_read(struct file *file, char __user *buf,
+			 size_t size, loff_t *offset)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_TX)
+		return -EINVAL;
+	return vivid_radio_rx_read(file, buf, size, offset);
+}
+
+static ssize_t vivid_radio_write(struct file *file, const char __user *buf,
+			  size_t size, loff_t *offset)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return -EINVAL;
+	return vivid_radio_tx_write(file, buf, size, offset);
+}
+
+static __poll_t vivid_radio_poll(struct file *file, struct poll_table_struct *wait)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX)
+		return vivid_radio_rx_poll(file, wait);
+	return vivid_radio_tx_poll(file, wait);
+}
+
+static int vivid_enum_input(struct file *file, void *priv,
+			    struct v4l2_input *inp)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_enum_input_tch(file, priv, inp);
+	return vidioc_enum_input(file, priv, inp);
+}
+
+static int vivid_g_input(struct file *file, void *priv, unsigned int *i)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_g_input_tch(file, priv, i);
+	return vidioc_g_input(file, priv, i);
+}
+
+static int vivid_s_input(struct file *file, void *priv, unsigned int i)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_s_input_tch(file, priv, i);
+	return vidioc_s_input(file, priv, i);
+}
+
+static int vivid_enum_fmt_cap(struct file *file, void  *priv,
+			      struct v4l2_fmtdesc *f)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_enum_fmt_tch(file, priv, f);
+	return vivid_enum_fmt_vid(file, priv, f);
+}
+
+static int vivid_g_fmt_cap(struct file *file, void *priv,
+			   struct v4l2_format *f)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_g_fmt_tch(file, priv, f);
+	return vidioc_g_fmt_vid_cap(file, priv, f);
+}
+
+static int vivid_try_fmt_cap(struct file *file, void *priv,
+			     struct v4l2_format *f)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_g_fmt_tch(file, priv, f);
+	return vidioc_try_fmt_vid_cap(file, priv, f);
+}
+
+static int vivid_s_fmt_cap(struct file *file, void *priv,
+			   struct v4l2_format *f)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_g_fmt_tch(file, priv, f);
+	return vidioc_s_fmt_vid_cap(file, priv, f);
+}
+
+static int vivid_g_fmt_cap_mplane(struct file *file, void *priv,
+				  struct v4l2_format *f)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_g_fmt_tch_mplane(file, priv, f);
+	return vidioc_g_fmt_vid_cap_mplane(file, priv, f);
+}
+
+static int vivid_try_fmt_cap_mplane(struct file *file, void *priv,
+				    struct v4l2_format *f)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_g_fmt_tch_mplane(file, priv, f);
+	return vidioc_try_fmt_vid_cap_mplane(file, priv, f);
+}
+
+static int vivid_s_fmt_cap_mplane(struct file *file, void *priv,
+				  struct v4l2_format *f)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_type == VFL_TYPE_TOUCH)
+		return vivid_g_fmt_tch_mplane(file, priv, f);
+	return vidioc_s_fmt_vid_cap_mplane(file, priv, f);
+}
+
+static bool vivid_is_in_use(bool valid, struct video_device *vdev)
+{
+	unsigned long flags;
+	bool res;
+
+	if (!valid)
+		return false;
+	spin_lock_irqsave(&vdev->fh_lock, flags);
+	res = !list_empty(&vdev->fh_list);
+	spin_unlock_irqrestore(&vdev->fh_lock, flags);
+	return res;
+}
+
+static bool vivid_is_last_user(struct vivid_dev *dev)
+{
+	unsigned int uses =
+		vivid_is_in_use(dev->has_vid_cap, &dev->vid_cap_dev) +
+		vivid_is_in_use(dev->has_vid_out, &dev->vid_out_dev) +
+		vivid_is_in_use(dev->has_vbi_cap, &dev->vbi_cap_dev) +
+		vivid_is_in_use(dev->has_vbi_out, &dev->vbi_out_dev) +
+		vivid_is_in_use(dev->has_radio_rx, &dev->radio_rx_dev) +
+		vivid_is_in_use(dev->has_radio_tx, &dev->radio_tx_dev) +
+		vivid_is_in_use(dev->has_sdr_cap, &dev->sdr_cap_dev) +
+		vivid_is_in_use(dev->has_meta_cap, &dev->meta_cap_dev) +
+		vivid_is_in_use(dev->has_meta_out, &dev->meta_out_dev) +
+		vivid_is_in_use(dev->has_touch_cap, &dev->touch_cap_dev);
+
+	return uses == 1;
+}
+
+static void vivid_reconnect(struct vivid_dev *dev)
+{
+	if (dev->has_vid_cap)
+		set_bit(V4L2_FL_REGISTERED, &dev->vid_cap_dev.flags);
+	if (dev->has_vid_out)
+		set_bit(V4L2_FL_REGISTERED, &dev->vid_out_dev.flags);
+	if (dev->has_vbi_cap)
+		set_bit(V4L2_FL_REGISTERED, &dev->vbi_cap_dev.flags);
+	if (dev->has_vbi_out)
+		set_bit(V4L2_FL_REGISTERED, &dev->vbi_out_dev.flags);
+	if (dev->has_radio_rx)
+		set_bit(V4L2_FL_REGISTERED, &dev->radio_rx_dev.flags);
+	if (dev->has_radio_tx)
+		set_bit(V4L2_FL_REGISTERED, &dev->radio_tx_dev.flags);
+	if (dev->has_sdr_cap)
+		set_bit(V4L2_FL_REGISTERED, &dev->sdr_cap_dev.flags);
+	if (dev->has_meta_cap)
+		set_bit(V4L2_FL_REGISTERED, &dev->meta_cap_dev.flags);
+	if (dev->has_meta_out)
+		set_bit(V4L2_FL_REGISTERED, &dev->meta_out_dev.flags);
+	if (dev->has_touch_cap)
+		set_bit(V4L2_FL_REGISTERED, &dev->touch_cap_dev.flags);
+	dev->disconnect_error = false;
+}
+
+static int vivid_fop_release(struct file *file)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct video_device *vdev = video_devdata(file);
+
+	mutex_lock(&dev->mutex);
+	if (!no_error_inj && v4l2_fh_is_singular_file(file) &&
+	    dev->disconnect_error && !video_is_registered(vdev) &&
+	    vivid_is_last_user(dev)) {
+		/*
+		 * I am the last user of this driver, and a disconnect
+		 * was forced (since this video_device is unregistered),
+		 * so re-register all video_device's again.
+		 */
+		v4l2_info(&dev->v4l2_dev, "reconnect\n");
+		vivid_reconnect(dev);
+	}
+	if (file_to_v4l2_fh(file) == dev->radio_rx_rds_owner) {
+		dev->radio_rx_rds_last_block = 0;
+		dev->radio_rx_rds_owner = NULL;
+	}
+	if (file_to_v4l2_fh(file) == dev->radio_tx_rds_owner) {
+		dev->radio_tx_rds_last_block = 0;
+		dev->radio_tx_rds_owner = NULL;
+	}
+	mutex_unlock(&dev->mutex);
+	if (vdev->queue)
+		return vb2_fop_release(file);
+	return v4l2_fh_release(file);
+}
+
+static const struct v4l2_file_operations vivid_fops = {
+	.owner		= THIS_MODULE,
+	.open           = v4l2_fh_open,
+	.release        = vivid_fop_release,
+	.read           = vb2_fop_read,
+	.write          = vb2_fop_write,
+	.poll		= vb2_fop_poll,
+	.unlocked_ioctl = video_ioctl2,
+	.mmap           = vb2_fop_mmap,
+};
+
+static const struct v4l2_file_operations vivid_radio_fops = {
+	.owner		= THIS_MODULE,
+	.open           = v4l2_fh_open,
+	.release        = vivid_fop_release,
+	.read           = vivid_radio_read,
+	.write          = vivid_radio_write,
+	.poll		= vivid_radio_poll,
+	.unlocked_ioctl = video_ioctl2,
+};
+
+static int vidioc_reqbufs(struct file *file, void *priv,
+			  struct v4l2_requestbuffers *p)
+{
+	struct video_device *vdev = video_devdata(file);
+	int r;
+
+	/*
+	 * Sliced and raw VBI capture share the same queue so we must
+	 * change the type.
+	 */
+	if (p->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ||
+	    p->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
+		r = vb2_queue_change_type(vdev->queue, p->type);
+		if (r)
+			return r;
+	}
+
+	return vb2_ioctl_reqbufs(file, priv, p);
+}
+
+static int vidioc_create_bufs(struct file *file, void *priv,
+			      struct v4l2_create_buffers *p)
+{
+	struct video_device *vdev = video_devdata(file);
+	int r;
+
+	/*
+	 * Sliced and raw VBI capture share the same queue so we must
+	 * change the type.
+	 */
+	if (p->format.type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ||
+	    p->format.type == V4L2_BUF_TYPE_VBI_CAPTURE) {
+		r = vb2_queue_change_type(vdev->queue, p->format.type);
+		if (r)
+			return r;
+	}
+
+	return vb2_ioctl_create_bufs(file, priv, p);
+}
+
+static const struct v4l2_ioctl_ops vivid_ioctl_ops = {
+	.vidioc_querycap		= vidioc_querycap,
+
+	.vidioc_enum_fmt_vid_cap	= vivid_enum_fmt_cap,
+	.vidioc_g_fmt_vid_cap		= vivid_g_fmt_cap,
+	.vidioc_try_fmt_vid_cap		= vivid_try_fmt_cap,
+	.vidioc_s_fmt_vid_cap		= vivid_s_fmt_cap,
+	.vidioc_g_fmt_vid_cap_mplane	= vivid_g_fmt_cap_mplane,
+	.vidioc_try_fmt_vid_cap_mplane	= vivid_try_fmt_cap_mplane,
+	.vidioc_s_fmt_vid_cap_mplane	= vivid_s_fmt_cap_mplane,
+
+	.vidioc_enum_fmt_vid_out	= vivid_enum_fmt_vid,
+	.vidioc_g_fmt_vid_out		= vidioc_g_fmt_vid_out,
+	.vidioc_try_fmt_vid_out		= vidioc_try_fmt_vid_out,
+	.vidioc_s_fmt_vid_out		= vidioc_s_fmt_vid_out,
+	.vidioc_g_fmt_vid_out_mplane	= vidioc_g_fmt_vid_out_mplane,
+	.vidioc_try_fmt_vid_out_mplane	= vidioc_try_fmt_vid_out_mplane,
+	.vidioc_s_fmt_vid_out_mplane	= vidioc_s_fmt_vid_out_mplane,
+
+	.vidioc_g_selection		= vidioc_g_selection,
+	.vidioc_s_selection		= vidioc_s_selection,
+	.vidioc_g_pixelaspect		= vidioc_g_pixelaspect,
+
+	.vidioc_g_fmt_vbi_cap		= vidioc_g_fmt_vbi_cap,
+	.vidioc_try_fmt_vbi_cap		= vidioc_g_fmt_vbi_cap,
+	.vidioc_s_fmt_vbi_cap		= vidioc_s_fmt_vbi_cap,
+
+	.vidioc_g_fmt_sliced_vbi_cap    = vidioc_g_fmt_sliced_vbi_cap,
+	.vidioc_try_fmt_sliced_vbi_cap  = vidioc_try_fmt_sliced_vbi_cap,
+	.vidioc_s_fmt_sliced_vbi_cap    = vidioc_s_fmt_sliced_vbi_cap,
+	.vidioc_g_sliced_vbi_cap	= vidioc_g_sliced_vbi_cap,
+
+	.vidioc_g_fmt_vbi_out		= vidioc_g_fmt_vbi_out,
+	.vidioc_try_fmt_vbi_out		= vidioc_g_fmt_vbi_out,
+	.vidioc_s_fmt_vbi_out		= vidioc_s_fmt_vbi_out,
+
+	.vidioc_g_fmt_sliced_vbi_out    = vidioc_g_fmt_sliced_vbi_out,
+	.vidioc_try_fmt_sliced_vbi_out  = vidioc_try_fmt_sliced_vbi_out,
+	.vidioc_s_fmt_sliced_vbi_out    = vidioc_s_fmt_sliced_vbi_out,
+
+	.vidioc_enum_fmt_sdr_cap	= vidioc_enum_fmt_sdr_cap,
+	.vidioc_g_fmt_sdr_cap		= vidioc_g_fmt_sdr_cap,
+	.vidioc_try_fmt_sdr_cap		= vidioc_try_fmt_sdr_cap,
+	.vidioc_s_fmt_sdr_cap		= vidioc_s_fmt_sdr_cap,
+
+	.vidioc_overlay			= vidioc_overlay,
+	.vidioc_enum_framesizes		= vidioc_enum_framesizes,
+	.vidioc_enum_frameintervals	= vidioc_enum_frameintervals,
+	.vidioc_g_parm			= vidioc_g_parm,
+	.vidioc_s_parm			= vidioc_s_parm,
+
+	.vidioc_g_fmt_vid_out_overlay	= vidioc_g_fmt_vid_out_overlay,
+	.vidioc_try_fmt_vid_out_overlay	= vidioc_try_fmt_vid_out_overlay,
+	.vidioc_s_fmt_vid_out_overlay	= vidioc_s_fmt_vid_out_overlay,
+	.vidioc_g_fbuf			= vidioc_g_fbuf,
+	.vidioc_s_fbuf			= vidioc_s_fbuf,
+
+	.vidioc_reqbufs			= vidioc_reqbufs,
+	.vidioc_create_bufs		= vidioc_create_bufs,
+	.vidioc_prepare_buf		= vb2_ioctl_prepare_buf,
+	.vidioc_querybuf		= vb2_ioctl_querybuf,
+	.vidioc_qbuf			= vb2_ioctl_qbuf,
+	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
+	.vidioc_expbuf			= vb2_ioctl_expbuf,
+	.vidioc_streamon		= vb2_ioctl_streamon,
+	.vidioc_streamoff		= vb2_ioctl_streamoff,
+	.vidioc_remove_bufs		= vb2_ioctl_remove_bufs,
+
+	.vidioc_enum_input		= vivid_enum_input,
+	.vidioc_g_input			= vivid_g_input,
+	.vidioc_s_input			= vivid_s_input,
+	.vidioc_s_audio			= vidioc_s_audio,
+	.vidioc_g_audio			= vidioc_g_audio,
+	.vidioc_enumaudio		= vidioc_enumaudio,
+	.vidioc_s_frequency		= vidioc_s_frequency,
+	.vidioc_g_frequency		= vidioc_g_frequency,
+	.vidioc_s_tuner			= vidioc_s_tuner,
+	.vidioc_g_tuner			= vidioc_g_tuner,
+	.vidioc_s_modulator		= vidioc_s_modulator,
+	.vidioc_g_modulator		= vidioc_g_modulator,
+	.vidioc_s_hw_freq_seek		= vidioc_s_hw_freq_seek,
+	.vidioc_enum_freq_bands		= vidioc_enum_freq_bands,
+
+	.vidioc_enum_output		= vidioc_enum_output,
+	.vidioc_g_output		= vidioc_g_output,
+	.vidioc_s_output		= vidioc_s_output,
+	.vidioc_s_audout		= vidioc_s_audout,
+	.vidioc_g_audout		= vidioc_g_audout,
+	.vidioc_enumaudout		= vidioc_enumaudout,
+
+	.vidioc_querystd		= vidioc_querystd,
+	.vidioc_g_std			= vidioc_g_std,
+	.vidioc_s_std			= vidioc_s_std,
+	.vidioc_s_dv_timings		= vidioc_s_dv_timings,
+	.vidioc_g_dv_timings		= vidioc_g_dv_timings,
+	.vidioc_query_dv_timings	= vidioc_query_dv_timings,
+	.vidioc_enum_dv_timings		= vidioc_enum_dv_timings,
+	.vidioc_dv_timings_cap		= vidioc_dv_timings_cap,
+	.vidioc_g_edid			= vidioc_g_edid,
+	.vidioc_s_edid			= vidioc_s_edid,
+
+	.vidioc_log_status		= vidioc_log_status,
+	.vidioc_subscribe_event		= vidioc_subscribe_event,
+	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+
+	.vidioc_enum_fmt_meta_cap	= vidioc_enum_fmt_meta_cap,
+	.vidioc_g_fmt_meta_cap		= vidioc_g_fmt_meta_cap,
+	.vidioc_s_fmt_meta_cap		= vidioc_g_fmt_meta_cap,
+	.vidioc_try_fmt_meta_cap	= vidioc_g_fmt_meta_cap,
+
+	.vidioc_enum_fmt_meta_out       = vidioc_enum_fmt_meta_out,
+	.vidioc_g_fmt_meta_out          = vidioc_g_fmt_meta_out,
+	.vidioc_s_fmt_meta_out          = vidioc_g_fmt_meta_out,
+	.vidioc_try_fmt_meta_out        = vidioc_g_fmt_meta_out,
+};
+
+/* -----------------------------------------------------------------
+	Initialization and module stuff
+   ------------------------------------------------------------------*/
+
+static void vivid_dev_release(struct v4l2_device *v4l2_dev)
+{
+	struct vivid_dev *dev = container_of(v4l2_dev, struct vivid_dev, v4l2_dev);
+
+	cancel_work_sync(&dev->update_hdmi_ctrl_work);
+	vivid_free_controls(dev);
+	v4l2_device_unregister(&dev->v4l2_dev);
+#ifdef CONFIG_MEDIA_CONTROLLER
+	media_device_cleanup(&dev->mdev);
+#endif
+	vfree(dev->scaled_line);
+	vfree(dev->blended_line);
+	vfree(dev->edid);
+	tpg_free(&dev->tpg);
+	kfree(dev->query_dv_timings_qmenu);
+	kfree(dev->query_dv_timings_qmenu_strings);
+	kfree(dev);
+}
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+static int vivid_req_validate(struct media_request *req)
+{
+	struct vivid_dev *dev = container_of(req->mdev, struct vivid_dev, mdev);
+
+	if (dev->req_validate_error) {
+		dev->req_validate_error = false;
+		return -EINVAL;
+	}
+	return vb2_request_validate(req);
+}
+
+static const struct media_device_ops vivid_media_ops = {
+	.req_validate = vivid_req_validate,
+	.req_queue = vb2_request_queue,
+};
+#endif
+
+static int vivid_create_queue(struct vivid_dev *dev,
+			      struct vb2_queue *q,
+			      u32 buf_type,
+			      unsigned int min_reqbufs_allocation,
+			      const struct vb2_ops *ops)
+{
+	if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->multiplanar)
+		buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	else if (buf_type == V4L2_BUF_TYPE_VIDEO_OUTPUT && dev->multiplanar)
+		buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+	else if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE && !dev->has_raw_vbi_cap)
+		buf_type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
+	else if (buf_type == V4L2_BUF_TYPE_VBI_OUTPUT && !dev->has_raw_vbi_out)
+		buf_type = V4L2_BUF_TYPE_SLICED_VBI_OUTPUT;
+
+	q->type = buf_type;
+	q->io_modes = VB2_MMAP | VB2_DMABUF;
+	q->io_modes |= V4L2_TYPE_IS_OUTPUT(buf_type) ?  VB2_WRITE : VB2_READ;
+
+	/*
+	 * The maximum number of buffers is 32768 if PAGE_SHIFT == 12,
+	 * see also MAX_BUFFER_INDEX in videobuf2-core.c. It will be less if
+	 * PAGE_SHIFT > 12, but then max_num_buffers will be clamped by
+	 * videobuf2-core.c to MAX_BUFFER_INDEX.
+	 */
+	if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		q->max_num_buffers = MAX_VID_CAP_BUFFERS;
+	if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE)
+		q->max_num_buffers = 1024;
+	if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE)
+		q->max_num_buffers = 32768;
+
+	if (allocators[dev->inst] != 1)
+		q->io_modes |= VB2_USERPTR;
+	q->drv_priv = dev;
+	q->buf_struct_size = sizeof(struct vivid_buffer);
+	q->ops = ops;
+	q->mem_ops = allocators[dev->inst] == 1 ? &vb2_dma_contig_memops :
+						  &vb2_vmalloc_memops;
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	q->min_reqbufs_allocation = min_reqbufs_allocation;
+	q->lock = &dev->mutex;
+	q->dev = dev->v4l2_dev.dev;
+	q->supports_requests = supports_requests[dev->inst];
+	q->requires_requests = supports_requests[dev->inst] >= 2;
+	q->allow_cache_hints = (cache_hints[dev->inst] == 1);
+
+	return vb2_queue_init(q);
+}
+
+static int vivid_detect_feature_set(struct vivid_dev *dev, int inst,
+				    unsigned node_type,
+				    bool *has_tuner,
+				    bool *has_modulator,
+				    int *ccs_cap,
+				    int *ccs_out,
+				    unsigned in_type_counter[4],
+				    unsigned out_type_counter[4])
+{
+	int i;
+
+	/* do we use single- or multi-planar? */
+	dev->multiplanar = multiplanar[inst] > 1;
+	v4l2_info(&dev->v4l2_dev, "using %splanar format API\n",
+			dev->multiplanar ? "multi" : "single ");
+
+	/* how many inputs do we have and of what type? */
+	dev->num_inputs = num_inputs[inst];
+	if (node_type & 0x20007) {
+		if (dev->num_inputs < 1)
+			dev->num_inputs = 1;
+	} else {
+		dev->num_inputs = 0;
+	}
+	if (dev->num_inputs >= MAX_INPUTS)
+		dev->num_inputs = MAX_INPUTS;
+	for (i = 0; i < dev->num_inputs; i++) {
+		dev->input_type[i] = (input_types[inst] >> (i * 2)) & 0x3;
+		dev->input_name_counter[i] = in_type_counter[dev->input_type[i]]++;
+	}
+	dev->has_audio_inputs = in_type_counter[TV] && in_type_counter[SVID];
+	if (in_type_counter[HDMI] == 16) {
+		/* The CEC physical address only allows for max 15 inputs */
+		in_type_counter[HDMI]--;
+		dev->num_inputs--;
+	}
+	dev->num_hdmi_inputs = in_type_counter[HDMI];
+	dev->num_svid_inputs = in_type_counter[SVID];
+
+	/* how many outputs do we have and of what type? */
+	dev->num_outputs = num_outputs[inst];
+	if (node_type & 0x40300) {
+		if (dev->num_outputs < 1)
+			dev->num_outputs = 1;
+	} else {
+		dev->num_outputs = 0;
+	}
+	if (dev->num_outputs >= MAX_OUTPUTS)
+		dev->num_outputs = MAX_OUTPUTS;
+	for (i = 0; i < dev->num_outputs; i++) {
+		dev->output_type[i] = ((output_types[inst] >> i) & 1) ? HDMI : SVID;
+		dev->output_name_counter[i] = out_type_counter[dev->output_type[i]]++;
+	}
+	dev->has_audio_outputs = out_type_counter[SVID];
+	if (out_type_counter[HDMI] == 16) {
+		/*
+		 * The CEC physical address only allows for max 15 inputs,
+		 * so outputs are also limited to 15 to allow for easy
+		 * CEC output to input mapping.
+		 */
+		out_type_counter[HDMI]--;
+		dev->num_outputs--;
+	}
+	dev->num_hdmi_outputs = out_type_counter[HDMI];
+
+	/* do we create a video capture device? */
+	dev->has_vid_cap = node_type & 0x0001;
+
+	/* do we create a vbi capture device? */
+	if (in_type_counter[TV] || in_type_counter[SVID]) {
+		dev->has_raw_vbi_cap = node_type & 0x0004;
+		dev->has_sliced_vbi_cap = node_type & 0x0008;
+		dev->has_vbi_cap = dev->has_raw_vbi_cap | dev->has_sliced_vbi_cap;
+	}
+
+	/* do we create a meta capture device */
+	dev->has_meta_cap = node_type & 0x20000;
+
+	/* sanity checks */
+	if ((in_type_counter[WEBCAM] || in_type_counter[HDMI]) &&
+	    !dev->has_vid_cap && !dev->has_meta_cap) {
+		v4l2_warn(&dev->v4l2_dev,
+			  "Webcam or HDMI input without video or metadata nodes\n");
+		return -EINVAL;
+	}
+	if ((in_type_counter[TV] || in_type_counter[SVID]) &&
+	    !dev->has_vid_cap && !dev->has_vbi_cap && !dev->has_meta_cap) {
+		v4l2_warn(&dev->v4l2_dev,
+			  "TV or S-Video input without video, VBI or metadata nodes\n");
+		return -EINVAL;
+	}
+
+	/* do we create a video output device? */
+	dev->has_vid_out = node_type & 0x0100;
+
+	/* do we create a vbi output device? */
+	if (out_type_counter[SVID]) {
+		dev->has_raw_vbi_out = node_type & 0x0400;
+		dev->has_sliced_vbi_out = node_type & 0x0800;
+		dev->has_vbi_out = dev->has_raw_vbi_out | dev->has_sliced_vbi_out;
+	}
+
+	/* do we create a metadata output device */
+	dev->has_meta_out = node_type & 0x40000;
+
+	/* sanity checks */
+	if (out_type_counter[SVID] &&
+	    !dev->has_vid_out && !dev->has_vbi_out && !dev->has_meta_out) {
+		v4l2_warn(&dev->v4l2_dev,
+			  "S-Video output without video, VBI or metadata nodes\n");
+		return -EINVAL;
+	}
+	if (out_type_counter[HDMI] && !dev->has_vid_out && !dev->has_meta_out) {
+		v4l2_warn(&dev->v4l2_dev,
+			  "HDMI output without video or metadata nodes\n");
+		return -EINVAL;
+	}
+
+	/* do we create a radio receiver device? */
+	dev->has_radio_rx = node_type & 0x0010;
+
+	/* do we create a radio transmitter device? */
+	dev->has_radio_tx = node_type & 0x1000;
+
+	/* do we create a software defined radio capture device? */
+	dev->has_sdr_cap = node_type & 0x0020;
+
+	/* do we have a TV tuner? */
+	dev->has_tv_tuner = in_type_counter[TV];
+
+	/* do we have a tuner? */
+	*has_tuner = ((dev->has_vid_cap || dev->has_vbi_cap) && in_type_counter[TV]) ||
+		      dev->has_radio_rx || dev->has_sdr_cap;
+
+	/* do we have a modulator? */
+	*has_modulator = dev->has_radio_tx;
+
+#ifdef CONFIG_VIDEO_VIVID_OSD
+	if (dev->has_vid_cap)
+		/* do we have a framebuffer for overlay testing? */
+		dev->has_fb = node_type & 0x10000;
+#endif
+
+	/* can we do crop/compose/scaling while capturing? */
+	if (no_error_inj && *ccs_cap == -1)
+		*ccs_cap = 7;
+
+	/* if ccs_cap == -1, then the user can select it using controls */
+	if (*ccs_cap != -1) {
+		dev->has_crop_cap = *ccs_cap & 1;
+		dev->has_compose_cap = *ccs_cap & 2;
+		dev->has_scaler_cap = *ccs_cap & 4;
+		v4l2_info(&dev->v4l2_dev, "Capture Crop: %c Compose: %c Scaler: %c\n",
+			dev->has_crop_cap ? 'Y' : 'N',
+			dev->has_compose_cap ? 'Y' : 'N',
+			dev->has_scaler_cap ? 'Y' : 'N');
+	}
+
+	/* can we do crop/compose/scaling with video output? */
+	if (no_error_inj && *ccs_out == -1)
+		*ccs_out = 7;
+
+	/* if ccs_out == -1, then the user can select it using controls */
+	if (*ccs_out != -1) {
+		dev->has_crop_out = *ccs_out & 1;
+		dev->has_compose_out = *ccs_out & 2;
+		dev->has_scaler_out = *ccs_out & 4;
+		v4l2_info(&dev->v4l2_dev, "Output Crop: %c Compose: %c Scaler: %c\n",
+			dev->has_crop_out ? 'Y' : 'N',
+			dev->has_compose_out ? 'Y' : 'N',
+			dev->has_scaler_out ? 'Y' : 'N');
+	}
+
+	/* do we create a touch capture device */
+	dev->has_touch_cap = node_type & 0x80000;
+
+	return 0;
+}
+
+static void vivid_set_capabilities(struct vivid_dev *dev)
+{
+	if (dev->has_vid_cap) {
+		/* set up the capabilities of the video capture device */
+		dev->vid_cap_caps = dev->multiplanar ?
+			V4L2_CAP_VIDEO_CAPTURE_MPLANE :
+			V4L2_CAP_VIDEO_CAPTURE;
+		dev->vid_cap_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
+		if (dev->has_audio_inputs)
+			dev->vid_cap_caps |= V4L2_CAP_AUDIO;
+		if (dev->has_tv_tuner)
+			dev->vid_cap_caps |= V4L2_CAP_TUNER;
+	}
+	if (dev->has_vid_out) {
+		/* set up the capabilities of the video output device */
+		dev->vid_out_caps = dev->multiplanar ?
+			V4L2_CAP_VIDEO_OUTPUT_MPLANE :
+			V4L2_CAP_VIDEO_OUTPUT;
+		if (dev->has_fb)
+			dev->vid_out_caps |= V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
+		dev->vid_out_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
+		if (dev->has_audio_outputs)
+			dev->vid_out_caps |= V4L2_CAP_AUDIO;
+	}
+	if (dev->has_vbi_cap) {
+		/* set up the capabilities of the vbi capture device */
+		dev->vbi_cap_caps = (dev->has_raw_vbi_cap ? V4L2_CAP_VBI_CAPTURE : 0) |
+				    (dev->has_sliced_vbi_cap ? V4L2_CAP_SLICED_VBI_CAPTURE : 0);
+		dev->vbi_cap_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
+		if (dev->has_audio_inputs)
+			dev->vbi_cap_caps |= V4L2_CAP_AUDIO;
+		if (dev->has_tv_tuner)
+			dev->vbi_cap_caps |= V4L2_CAP_TUNER;
+	}
+	if (dev->has_vbi_out) {
+		/* set up the capabilities of the vbi output device */
+		dev->vbi_out_caps = (dev->has_raw_vbi_out ? V4L2_CAP_VBI_OUTPUT : 0) |
+				    (dev->has_sliced_vbi_out ? V4L2_CAP_SLICED_VBI_OUTPUT : 0);
+		dev->vbi_out_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
+		if (dev->has_audio_outputs)
+			dev->vbi_out_caps |= V4L2_CAP_AUDIO;
+	}
+	if (dev->has_sdr_cap) {
+		/* set up the capabilities of the sdr capture device */
+		dev->sdr_cap_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_TUNER;
+		dev->sdr_cap_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
+	}
+	/* set up the capabilities of the radio receiver device */
+	if (dev->has_radio_rx)
+		dev->radio_rx_caps = V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE |
+				     V4L2_CAP_HW_FREQ_SEEK | V4L2_CAP_TUNER |
+				     V4L2_CAP_READWRITE;
+	/* set up the capabilities of the radio transmitter device */
+	if (dev->has_radio_tx)
+		dev->radio_tx_caps = V4L2_CAP_RDS_OUTPUT | V4L2_CAP_MODULATOR |
+				     V4L2_CAP_READWRITE;
+
+	/* set up the capabilities of meta capture device */
+	if (dev->has_meta_cap) {
+		dev->meta_cap_caps = V4L2_CAP_META_CAPTURE |
+				     V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
+		if (dev->has_audio_inputs)
+			dev->meta_cap_caps |= V4L2_CAP_AUDIO;
+		if (dev->has_tv_tuner)
+			dev->meta_cap_caps |= V4L2_CAP_TUNER;
+	}
+	/* set up the capabilities of meta output device */
+	if (dev->has_meta_out) {
+		dev->meta_out_caps = V4L2_CAP_META_OUTPUT |
+				     V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
+		if (dev->has_audio_outputs)
+			dev->meta_out_caps |= V4L2_CAP_AUDIO;
+	}
+	/* set up the capabilities of the touch capture device */
+	if (dev->has_touch_cap) {
+		dev->touch_cap_caps = V4L2_CAP_TOUCH | V4L2_CAP_STREAMING |
+				      V4L2_CAP_READWRITE;
+		dev->touch_cap_caps |= dev->multiplanar ?
+			V4L2_CAP_VIDEO_CAPTURE_MPLANE : V4L2_CAP_VIDEO_CAPTURE;
+	}
+}
+
+static void vivid_disable_unused_ioctls(struct vivid_dev *dev,
+					bool has_tuner,
+					bool has_modulator,
+					unsigned in_type_counter[4],
+					unsigned out_type_counter[4])
+{
+	/* disable invalid ioctls based on the feature set */
+	if (!dev->has_audio_inputs) {
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_AUDIO);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_AUDIO);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_ENUMAUDIO);
+		v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_S_AUDIO);
+		v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_G_AUDIO);
+		v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_ENUMAUDIO);
+		v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_S_AUDIO);
+		v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_G_AUDIO);
+		v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_ENUMAUDIO);
+	}
+	if (!dev->has_audio_outputs) {
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_S_AUDOUT);
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_AUDOUT);
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_ENUMAUDOUT);
+		v4l2_disable_ioctl(&dev->vbi_out_dev, VIDIOC_S_AUDOUT);
+		v4l2_disable_ioctl(&dev->vbi_out_dev, VIDIOC_G_AUDOUT);
+		v4l2_disable_ioctl(&dev->vbi_out_dev, VIDIOC_ENUMAUDOUT);
+		v4l2_disable_ioctl(&dev->meta_out_dev, VIDIOC_S_AUDOUT);
+		v4l2_disable_ioctl(&dev->meta_out_dev, VIDIOC_G_AUDOUT);
+		v4l2_disable_ioctl(&dev->meta_out_dev, VIDIOC_ENUMAUDOUT);
+	}
+	if (!in_type_counter[TV] && !in_type_counter[SVID]) {
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_STD);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_STD);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_ENUMSTD);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_QUERYSTD);
+	}
+	if (!out_type_counter[SVID]) {
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_S_STD);
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_STD);
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_ENUMSTD);
+	}
+	if (!has_tuner && !has_modulator) {
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_FREQUENCY);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_FREQUENCY);
+		v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_S_FREQUENCY);
+		v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_G_FREQUENCY);
+		v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_S_FREQUENCY);
+		v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_G_FREQUENCY);
+	}
+	if (!has_tuner) {
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_TUNER);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_TUNER);
+		v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_S_TUNER);
+		v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_G_TUNER);
+		v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_S_TUNER);
+		v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_G_TUNER);
+	}
+	if (in_type_counter[HDMI] == 0) {
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_EDID);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_EDID);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_DV_TIMINGS_CAP);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_DV_TIMINGS);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_DV_TIMINGS);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_ENUM_DV_TIMINGS);
+		v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_QUERY_DV_TIMINGS);
+	}
+	if (out_type_counter[HDMI] == 0) {
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_EDID);
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_DV_TIMINGS_CAP);
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_DV_TIMINGS);
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_S_DV_TIMINGS);
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_ENUM_DV_TIMINGS);
+	}
+	if (!dev->has_fb) {
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_FBUF);
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_S_FBUF);
+		v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_OVERLAY);
+	}
+	v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_HW_FREQ_SEEK);
+	v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_S_HW_FREQ_SEEK);
+	v4l2_disable_ioctl(&dev->sdr_cap_dev, VIDIOC_S_HW_FREQ_SEEK);
+	v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_S_HW_FREQ_SEEK);
+	v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_S_FREQUENCY);
+	v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_FREQUENCY);
+	v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_ENUM_FRAMESIZES);
+	v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_ENUM_FRAMEINTERVALS);
+	v4l2_disable_ioctl(&dev->vbi_out_dev, VIDIOC_S_FREQUENCY);
+	v4l2_disable_ioctl(&dev->vbi_out_dev, VIDIOC_G_FREQUENCY);
+	v4l2_disable_ioctl(&dev->meta_out_dev, VIDIOC_S_FREQUENCY);
+	v4l2_disable_ioctl(&dev->meta_out_dev, VIDIOC_G_FREQUENCY);
+	v4l2_disable_ioctl(&dev->touch_cap_dev, VIDIOC_S_PARM);
+	v4l2_disable_ioctl(&dev->touch_cap_dev, VIDIOC_ENUM_FRAMESIZES);
+	v4l2_disable_ioctl(&dev->touch_cap_dev, VIDIOC_ENUM_FRAMEINTERVALS);
+}
+
+static int vivid_init_dv_timings(struct vivid_dev *dev)
+{
+	int i;
+
+	while (v4l2_dv_timings_presets[dev->query_dv_timings_size].bt.width)
+		dev->query_dv_timings_size++;
+
+	/*
+	 * Create a char pointer array that points to the names of all the
+	 * preset timings
+	 */
+	dev->query_dv_timings_qmenu = kmalloc_array(dev->query_dv_timings_size,
+						    sizeof(char *), GFP_KERNEL);
+	/*
+	 * Create a string array containing the names of all the preset
+	 * timings. Each name is max 31 chars long (+ terminating 0).
+	 */
+	dev->query_dv_timings_qmenu_strings =
+		kmalloc_array(dev->query_dv_timings_size, 32, GFP_KERNEL);
+
+	if (!dev->query_dv_timings_qmenu ||
+	    !dev->query_dv_timings_qmenu_strings)
+		return -ENOMEM;
+
+	for (i = 0; i < dev->query_dv_timings_size; i++) {
+		const struct v4l2_bt_timings *bt = &v4l2_dv_timings_presets[i].bt;
+		char *p = dev->query_dv_timings_qmenu_strings + i * 32;
+		u32 htot, vtot;
+
+		dev->query_dv_timings_qmenu[i] = p;
+
+		htot = V4L2_DV_BT_FRAME_WIDTH(bt);
+		vtot = V4L2_DV_BT_FRAME_HEIGHT(bt);
+		snprintf(p, 32, "%ux%u%s%u",
+			bt->width, bt->height, bt->interlaced ? "i" : "p",
+			(u32)bt->pixelclock / (htot * vtot));
+	}
+
+	return 0;
+}
+
+static int vivid_create_queues(struct vivid_dev *dev)
+{
+	int ret;
+
+	/* start creating the vb2 queues */
+	if (dev->has_vid_cap) {
+		/* initialize vid_cap queue */
+		ret = vivid_create_queue(dev, &dev->vb_vid_cap_q,
+					 V4L2_BUF_TYPE_VIDEO_CAPTURE, 2,
+					 &vivid_vid_cap_qops);
+		if (ret)
+			return ret;
+	}
+
+	if (dev->has_vid_out) {
+		/* initialize vid_out queue */
+		ret = vivid_create_queue(dev, &dev->vb_vid_out_q,
+					 V4L2_BUF_TYPE_VIDEO_OUTPUT, 2,
+					 &vivid_vid_out_qops);
+		if (ret)
+			return ret;
+	}
+
+	if (dev->has_vbi_cap) {
+		/* initialize vbi_cap queue */
+		ret = vivid_create_queue(dev, &dev->vb_vbi_cap_q,
+					 V4L2_BUF_TYPE_VBI_CAPTURE, 2,
+					 &vivid_vbi_cap_qops);
+		if (ret)
+			return ret;
+	}
+
+	if (dev->has_vbi_out) {
+		/* initialize vbi_out queue */
+		ret = vivid_create_queue(dev, &dev->vb_vbi_out_q,
+					 V4L2_BUF_TYPE_VBI_OUTPUT, 2,
+					 &vivid_vbi_out_qops);
+		if (ret)
+			return ret;
+	}
+
+	if (dev->has_sdr_cap) {
+		/* initialize sdr_cap queue */
+		ret = vivid_create_queue(dev, &dev->vb_sdr_cap_q,
+					 V4L2_BUF_TYPE_SDR_CAPTURE, 8,
+					 &vivid_sdr_cap_qops);
+		if (ret)
+			return ret;
+	}
+
+	if (dev->has_meta_cap) {
+		/* initialize meta_cap queue */
+		ret = vivid_create_queue(dev, &dev->vb_meta_cap_q,
+					 V4L2_BUF_TYPE_META_CAPTURE, 2,
+					 &vivid_meta_cap_qops);
+		if (ret)
+			return ret;
+	}
+
+	if (dev->has_meta_out) {
+		/* initialize meta_out queue */
+		ret = vivid_create_queue(dev, &dev->vb_meta_out_q,
+					 V4L2_BUF_TYPE_META_OUTPUT, 2,
+					 &vivid_meta_out_qops);
+		if (ret)
+			return ret;
+	}
+
+	if (dev->has_touch_cap) {
+		/* initialize touch_cap queue */
+		ret = vivid_create_queue(dev, &dev->vb_touch_cap_q,
+					 V4L2_BUF_TYPE_VIDEO_CAPTURE, 2,
+					 &vivid_touch_cap_qops);
+		if (ret)
+			return ret;
+	}
+
+	if (dev->has_fb) {
+		/* Create framebuffer for testing output overlay */
+		ret = vivid_fb_init(dev);
+		if (ret)
+			return ret;
+	}
+	return 0;
+}
+
+static int vivid_create_devnodes(struct platform_device *pdev,
+				 struct vivid_dev *dev, int inst,
+				 v4l2_std_id tvnorms_cap,
+				 v4l2_std_id tvnorms_out,
+				 unsigned in_type_counter[4],
+				 unsigned out_type_counter[4])
+{
+	struct video_device *vfd;
+	int ret;
+
+	if (dev->has_vid_cap) {
+		vfd = &dev->vid_cap_dev;
+		snprintf(vfd->name, sizeof(vfd->name),
+			 "vivid-%03d-vid-cap", inst);
+		vfd->fops = &vivid_fops;
+		vfd->ioctl_ops = &vivid_ioctl_ops;
+		vfd->device_caps = dev->vid_cap_caps;
+		vfd->release = video_device_release_empty;
+		vfd->v4l2_dev = &dev->v4l2_dev;
+		vfd->queue = &dev->vb_vid_cap_q;
+		vfd->tvnorms = tvnorms_cap;
+
+		/*
+		 * Provide a mutex to v4l2 core. It will be used to protect
+		 * all fops and v4l2 ioctls.
+		 */
+		vfd->lock = &dev->mutex;
+		video_set_drvdata(vfd, dev);
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+		dev->vid_cap_pad.flags = MEDIA_PAD_FL_SINK;
+		ret = media_entity_pads_init(&vfd->entity, 1, &dev->vid_cap_pad);
+		if (ret)
+			return ret;
+#endif
+
+#ifdef CONFIG_VIDEO_VIVID_CEC
+		if (in_type_counter[HDMI]) {
+			ret = cec_register_adapter(dev->cec_rx_adap, &pdev->dev);
+			if (ret < 0) {
+				cec_delete_adapter(dev->cec_rx_adap);
+				dev->cec_rx_adap = NULL;
+				return ret;
+			}
+			cec_s_phys_addr(dev->cec_rx_adap, 0, false);
+			v4l2_info(&dev->v4l2_dev, "CEC adapter %s registered for HDMI input\n",
+				  dev_name(&dev->cec_rx_adap->devnode.dev));
+		}
+#endif
+
+		ret = video_register_device(vfd, VFL_TYPE_VIDEO, vid_cap_nr[inst]);
+		if (ret < 0)
+			return ret;
+		v4l2_info(&dev->v4l2_dev, "V4L2 capture device registered as %s\n",
+					  video_device_node_name(vfd));
+	}
+
+	if (dev->has_vid_out) {
+#ifdef CONFIG_VIDEO_VIVID_CEC
+		int i;
+#endif
+		vfd = &dev->vid_out_dev;
+		snprintf(vfd->name, sizeof(vfd->name),
+			 "vivid-%03d-vid-out", inst);
+		vfd->vfl_dir = VFL_DIR_TX;
+		vfd->fops = &vivid_fops;
+		vfd->ioctl_ops = &vivid_ioctl_ops;
+		vfd->device_caps = dev->vid_out_caps;
+		vfd->release = video_device_release_empty;
+		vfd->v4l2_dev = &dev->v4l2_dev;
+		vfd->queue = &dev->vb_vid_out_q;
+		vfd->tvnorms = tvnorms_out;
+
+		/*
+		 * Provide a mutex to v4l2 core. It will be used to protect
+		 * all fops and v4l2 ioctls.
+		 */
+		vfd->lock = &dev->mutex;
+		video_set_drvdata(vfd, dev);
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+		dev->vid_out_pad.flags = MEDIA_PAD_FL_SOURCE;
+		ret = media_entity_pads_init(&vfd->entity, 1, &dev->vid_out_pad);
+		if (ret)
+			return ret;
+#endif
+
+#ifdef CONFIG_VIDEO_VIVID_CEC
+		for (i = 0; i < dev->num_hdmi_outputs; i++) {
+			ret = cec_register_adapter(dev->cec_tx_adap[i], &pdev->dev);
+			if (ret < 0) {
+				for (; i >= 0; i--) {
+					cec_delete_adapter(dev->cec_tx_adap[i]);
+					dev->cec_tx_adap[i] = NULL;
+				}
+				return ret;
+			}
+			v4l2_info(&dev->v4l2_dev, "CEC adapter %s registered for HDMI output %d\n",
+				  dev_name(&dev->cec_tx_adap[i]->devnode.dev), i);
+		}
+#endif
+
+		ret = video_register_device(vfd, VFL_TYPE_VIDEO, vid_out_nr[inst]);
+		if (ret < 0)
+			return ret;
+		v4l2_info(&dev->v4l2_dev, "V4L2 output device registered as %s\n",
+					  video_device_node_name(vfd));
+	}
+
+	if (dev->has_vbi_cap) {
+		vfd = &dev->vbi_cap_dev;
+		snprintf(vfd->name, sizeof(vfd->name),
+			 "vivid-%03d-vbi-cap", inst);
+		vfd->fops = &vivid_fops;
+		vfd->ioctl_ops = &vivid_ioctl_ops;
+		vfd->device_caps = dev->vbi_cap_caps;
+		vfd->release = video_device_release_empty;
+		vfd->v4l2_dev = &dev->v4l2_dev;
+		vfd->queue = &dev->vb_vbi_cap_q;
+		vfd->lock = &dev->mutex;
+		vfd->tvnorms = tvnorms_cap;
+		video_set_drvdata(vfd, dev);
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+		dev->vbi_cap_pad.flags = MEDIA_PAD_FL_SINK;
+		ret = media_entity_pads_init(&vfd->entity, 1, &dev->vbi_cap_pad);
+		if (ret)
+			return ret;
+#endif
+
+		ret = video_register_device(vfd, VFL_TYPE_VBI, vbi_cap_nr[inst]);
+		if (ret < 0)
+			return ret;
+		v4l2_info(&dev->v4l2_dev, "V4L2 capture device registered as %s, supports %s VBI\n",
+					  video_device_node_name(vfd),
+					  (dev->has_raw_vbi_cap && dev->has_sliced_vbi_cap) ?
+					  "raw and sliced" :
+					  (dev->has_raw_vbi_cap ? "raw" : "sliced"));
+	}
+
+	if (dev->has_vbi_out) {
+		vfd = &dev->vbi_out_dev;
+		snprintf(vfd->name, sizeof(vfd->name),
+			 "vivid-%03d-vbi-out", inst);
+		vfd->vfl_dir = VFL_DIR_TX;
+		vfd->fops = &vivid_fops;
+		vfd->ioctl_ops = &vivid_ioctl_ops;
+		vfd->device_caps = dev->vbi_out_caps;
+		vfd->release = video_device_release_empty;
+		vfd->v4l2_dev = &dev->v4l2_dev;
+		vfd->queue = &dev->vb_vbi_out_q;
+		vfd->lock = &dev->mutex;
+		vfd->tvnorms = tvnorms_out;
+		video_set_drvdata(vfd, dev);
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+		dev->vbi_out_pad.flags = MEDIA_PAD_FL_SOURCE;
+		ret = media_entity_pads_init(&vfd->entity, 1, &dev->vbi_out_pad);
+		if (ret)
+			return ret;
+#endif
+
+		ret = video_register_device(vfd, VFL_TYPE_VBI, vbi_out_nr[inst]);
+		if (ret < 0)
+			return ret;
+		v4l2_info(&dev->v4l2_dev, "V4L2 output device registered as %s, supports %s VBI\n",
+					  video_device_node_name(vfd),
+					  (dev->has_raw_vbi_out && dev->has_sliced_vbi_out) ?
+					  "raw and sliced" :
+					  (dev->has_raw_vbi_out ? "raw" : "sliced"));
+	}
+
+	if (dev->has_sdr_cap) {
+		vfd = &dev->sdr_cap_dev;
+		snprintf(vfd->name, sizeof(vfd->name),
+			 "vivid-%03d-sdr-cap", inst);
+		vfd->fops = &vivid_fops;
+		vfd->ioctl_ops = &vivid_ioctl_ops;
+		vfd->device_caps = dev->sdr_cap_caps;
+		vfd->release = video_device_release_empty;
+		vfd->v4l2_dev = &dev->v4l2_dev;
+		vfd->queue = &dev->vb_sdr_cap_q;
+		vfd->lock = &dev->mutex;
+		video_set_drvdata(vfd, dev);
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+		dev->sdr_cap_pad.flags = MEDIA_PAD_FL_SINK;
+		ret = media_entity_pads_init(&vfd->entity, 1, &dev->sdr_cap_pad);
+		if (ret)
+			return ret;
+#endif
+
+		ret = video_register_device(vfd, VFL_TYPE_SDR, sdr_cap_nr[inst]);
+		if (ret < 0)
+			return ret;
+		v4l2_info(&dev->v4l2_dev, "V4L2 capture device registered as %s\n",
+					  video_device_node_name(vfd));
+	}
+
+	if (dev->has_radio_rx) {
+		vfd = &dev->radio_rx_dev;
+		snprintf(vfd->name, sizeof(vfd->name),
+			 "vivid-%03d-rad-rx", inst);
+		vfd->fops = &vivid_radio_fops;
+		vfd->ioctl_ops = &vivid_ioctl_ops;
+		vfd->device_caps = dev->radio_rx_caps;
+		vfd->release = video_device_release_empty;
+		vfd->v4l2_dev = &dev->v4l2_dev;
+		vfd->lock = &dev->mutex;
+		video_set_drvdata(vfd, dev);
+
+		ret = video_register_device(vfd, VFL_TYPE_RADIO, radio_rx_nr[inst]);
+		if (ret < 0)
+			return ret;
+		v4l2_info(&dev->v4l2_dev, "V4L2 receiver device registered as %s\n",
+					  video_device_node_name(vfd));
+	}
+
+	if (dev->has_radio_tx) {
+		vfd = &dev->radio_tx_dev;
+		snprintf(vfd->name, sizeof(vfd->name),
+			 "vivid-%03d-rad-tx", inst);
+		vfd->vfl_dir = VFL_DIR_TX;
+		vfd->fops = &vivid_radio_fops;
+		vfd->ioctl_ops = &vivid_ioctl_ops;
+		vfd->device_caps = dev->radio_tx_caps;
+		vfd->release = video_device_release_empty;
+		vfd->v4l2_dev = &dev->v4l2_dev;
+		vfd->lock = &dev->mutex;
+		video_set_drvdata(vfd, dev);
+
+		ret = video_register_device(vfd, VFL_TYPE_RADIO, radio_tx_nr[inst]);
+		if (ret < 0)
+			return ret;
+		v4l2_info(&dev->v4l2_dev, "V4L2 transmitter device registered as %s\n",
+					  video_device_node_name(vfd));
+	}
+
+	if (dev->has_meta_cap) {
+		vfd = &dev->meta_cap_dev;
+		snprintf(vfd->name, sizeof(vfd->name),
+			 "vivid-%03d-meta-cap", inst);
+		vfd->fops = &vivid_fops;
+		vfd->ioctl_ops = &vivid_ioctl_ops;
+		vfd->device_caps = dev->meta_cap_caps;
+		vfd->release = video_device_release_empty;
+		vfd->v4l2_dev = &dev->v4l2_dev;
+		vfd->queue = &dev->vb_meta_cap_q;
+		vfd->lock = &dev->mutex;
+		vfd->tvnorms = tvnorms_cap;
+		video_set_drvdata(vfd, dev);
+#ifdef CONFIG_MEDIA_CONTROLLER
+		dev->meta_cap_pad.flags = MEDIA_PAD_FL_SINK;
+		ret = media_entity_pads_init(&vfd->entity, 1,
+					     &dev->meta_cap_pad);
+		if (ret)
+			return ret;
+#endif
+		ret = video_register_device(vfd, VFL_TYPE_VIDEO,
+					    meta_cap_nr[inst]);
+		if (ret < 0)
+			return ret;
+		v4l2_info(&dev->v4l2_dev,
+			  "V4L2 metadata capture device registered as %s\n",
+			  video_device_node_name(vfd));
+	}
+
+	if (dev->has_meta_out) {
+		vfd = &dev->meta_out_dev;
+		snprintf(vfd->name, sizeof(vfd->name),
+			 "vivid-%03d-meta-out", inst);
+		vfd->vfl_dir = VFL_DIR_TX;
+		vfd->fops = &vivid_fops;
+		vfd->ioctl_ops = &vivid_ioctl_ops;
+		vfd->device_caps = dev->meta_out_caps;
+		vfd->release = video_device_release_empty;
+		vfd->v4l2_dev = &dev->v4l2_dev;
+		vfd->queue = &dev->vb_meta_out_q;
+		vfd->lock = &dev->mutex;
+		vfd->tvnorms = tvnorms_out;
+		video_set_drvdata(vfd, dev);
+#ifdef CONFIG_MEDIA_CONTROLLER
+		dev->meta_out_pad.flags = MEDIA_PAD_FL_SOURCE;
+		ret = media_entity_pads_init(&vfd->entity, 1,
+					     &dev->meta_out_pad);
+		if (ret)
+			return ret;
+#endif
+		ret = video_register_device(vfd, VFL_TYPE_VIDEO,
+					    meta_out_nr[inst]);
+		if (ret < 0)
+			return ret;
+		v4l2_info(&dev->v4l2_dev,
+			  "V4L2 metadata output device registered as %s\n",
+			  video_device_node_name(vfd));
+	}
+
+	if (dev->has_touch_cap) {
+		vfd = &dev->touch_cap_dev;
+		snprintf(vfd->name, sizeof(vfd->name),
+			 "vivid-%03d-touch-cap", inst);
+		vfd->fops = &vivid_fops;
+		vfd->ioctl_ops = &vivid_ioctl_ops;
+		vfd->device_caps = dev->touch_cap_caps;
+		vfd->release = video_device_release_empty;
+		vfd->v4l2_dev = &dev->v4l2_dev;
+		vfd->queue = &dev->vb_touch_cap_q;
+		vfd->tvnorms = tvnorms_cap;
+		vfd->lock = &dev->mutex;
+		video_set_drvdata(vfd, dev);
+#ifdef CONFIG_MEDIA_CONTROLLER
+		dev->touch_cap_pad.flags = MEDIA_PAD_FL_SINK;
+		ret = media_entity_pads_init(&vfd->entity, 1,
+					     &dev->touch_cap_pad);
+		if (ret)
+			return ret;
+#endif
+		ret = video_register_device(vfd, VFL_TYPE_TOUCH,
+					    touch_cap_nr[inst]);
+		if (ret < 0)
+			return ret;
+		v4l2_info(&dev->v4l2_dev,
+			  "V4L2 touch capture device registered as %s\n",
+			  video_device_node_name(vfd));
+	}
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	/* Register the media device */
+	ret = media_device_register(&dev->mdev);
+	if (ret) {
+		dev_err(dev->mdev.dev,
+			"media device register failed (err=%d)\n", ret);
+		return ret;
+	}
+#endif
+	return 0;
+}
+
+static void update_hdmi_ctrls_work_handler(struct work_struct *work)
+{
+	u64 skip_mask;
+	u64 update_mask;
+
+	spin_lock(&hdmi_output_skip_mask_lock);
+	skip_mask = hdmi_to_output_menu_skip_mask;
+	update_mask = hdmi_input_update_outputs_mask;
+	hdmi_input_update_outputs_mask = 0;
+	spin_unlock(&hdmi_output_skip_mask_lock);
+	for (int i = 0; i < n_devs && vivid_devs[i]; i++) {
+		if (update_mask & (1 << i))
+			vivid_update_connected_outputs(vivid_devs[i]);
+		for (int j = 0; j < vivid_devs[i]->num_hdmi_inputs; j++) {
+			struct v4l2_ctrl *c = vivid_devs[i]->ctrl_hdmi_to_output[j];
+
+			v4l2_ctrl_modify_range(c, c->minimum, c->maximum,
+					       skip_mask & ~(1ULL << c->cur.val),
+					       c->default_value);
+		}
+	}
+}
+
+static void update_svid_ctrls_work_handler(struct work_struct *work)
+{
+	u64 skip_mask;
+
+	spin_lock(&svid_output_skip_mask_lock);
+	skip_mask = svid_to_output_menu_skip_mask;
+	spin_unlock(&svid_output_skip_mask_lock);
+	for (int i = 0; i < n_devs && vivid_devs[i]; i++) {
+		for (int j = 0; j < vivid_devs[i]->num_svid_inputs; j++) {
+			struct v4l2_ctrl *c = vivid_devs[i]->ctrl_svid_to_output[j];
+
+			v4l2_ctrl_modify_range(c, c->minimum, c->maximum,
+					       skip_mask & ~(1ULL << c->cur.val),
+					       c->default_value);
+		}
+	}
+}
+
+static int vivid_create_instance(struct platform_device *pdev, int inst)
+{
+	static const struct v4l2_dv_timings def_dv_timings =
+					V4L2_DV_BT_CEA_1280X720P60;
+	unsigned in_type_counter[4] = { 0, 0, 0, 0 };
+	unsigned out_type_counter[4] = { 0, 0, 0, 0 };
+	int ccs_cap = ccs_cap_mode[inst];
+	int ccs_out = ccs_out_mode[inst];
+	bool has_tuner;
+	bool has_modulator;
+	struct vivid_dev *dev;
+	unsigned node_type = node_types[inst];
+	v4l2_std_id tvnorms_cap = 0, tvnorms_out = 0;
+	int ret;
+	int i;
+
+	/* allocate main vivid state structure */
+	dev = kzalloc_obj(*dev);
+	if (!dev)
+		return -ENOMEM;
+
+	dev->inst = inst;
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	dev->v4l2_dev.mdev = &dev->mdev;
+
+	/* Initialize media device */
+	strscpy(dev->mdev.model, VIVID_MODULE_NAME, sizeof(dev->mdev.model));
+	snprintf(dev->mdev.bus_info, sizeof(dev->mdev.bus_info),
+		 "platform:%s-%03d", VIVID_MODULE_NAME, inst);
+	dev->mdev.dev = &pdev->dev;
+	media_device_init(&dev->mdev);
+	dev->mdev.ops = &vivid_media_ops;
+#endif
+
+	/* register v4l2_device */
+	snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name),
+			"%s-%03d", VIVID_MODULE_NAME, inst);
+	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+	if (ret) {
+		kfree(dev);
+		return ret;
+	}
+	dev->v4l2_dev.release = vivid_dev_release;
+
+	ret = vivid_detect_feature_set(dev, inst, node_type,
+				       &has_tuner, &has_modulator,
+				       &ccs_cap, &ccs_out,
+				       in_type_counter, out_type_counter);
+	if (ret)
+		goto free_dev;
+
+	vivid_set_capabilities(dev);
+
+	ret = -ENOMEM;
+	/* initialize the test pattern generator */
+	tpg_init(&dev->tpg, 640, 360);
+	if (tpg_alloc(&dev->tpg, array_size(MAX_WIDTH, MAX_ZOOM)))
+		goto free_dev;
+	dev->scaled_line = vcalloc(MAX_WIDTH, MAX_ZOOM);
+	if (!dev->scaled_line)
+		goto free_dev;
+	dev->blended_line = vcalloc(MAX_WIDTH, MAX_ZOOM);
+	if (!dev->blended_line)
+		goto free_dev;
+
+	/* load the edid */
+	dev->edid = vmalloc_array(256, 128);
+	if (!dev->edid)
+		goto free_dev;
+
+	ret = vivid_init_dv_timings(dev);
+	if (ret < 0)
+		goto free_dev;
+
+	vivid_disable_unused_ioctls(dev, has_tuner, has_modulator,
+				    in_type_counter, out_type_counter);
+
+	/* configure internal data */
+	dev->fmt_cap = &vivid_formats[0];
+	dev->fmt_out = &vivid_formats[0];
+	if (!dev->multiplanar)
+		vivid_formats[0].data_offset[0] = 0;
+	dev->webcam_size_idx = 1;
+	dev->webcam_ival_idx = 3;
+	tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
+	dev->std_out = V4L2_STD_PAL;
+	if (dev->input_type[0] == TV || dev->input_type[0] == SVID)
+		tvnorms_cap = V4L2_STD_ALL;
+	if (dev->output_type[0] == SVID)
+		tvnorms_out = V4L2_STD_ALL;
+	for (i = 0; i < MAX_INPUTS; i++) {
+		dev->dv_timings_cap[i] = def_dv_timings;
+		dev->std_cap[i] = V4L2_STD_PAL;
+	}
+	dev->dv_timings_out = def_dv_timings;
+	dev->tv_freq = 2804 /* 175.25 * 16 */;
+	dev->tv_audmode = V4L2_TUNER_MODE_STEREO;
+	dev->tv_field_cap = V4L2_FIELD_INTERLACED;
+	dev->tv_field_out = V4L2_FIELD_INTERLACED;
+	dev->radio_rx_freq = 95000 * 16;
+	dev->radio_rx_audmode = V4L2_TUNER_MODE_STEREO;
+	if (dev->has_radio_tx) {
+		dev->radio_tx_freq = 95500 * 16;
+		dev->radio_rds_loop = false;
+	}
+	dev->radio_tx_subchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_RDS;
+	dev->sdr_adc_freq = 300000;
+	dev->sdr_fm_freq = 50000000;
+	dev->sdr_pixelformat = V4L2_SDR_FMT_CU8;
+	dev->sdr_buffersize = SDR_CAP_SAMPLES_PER_BUF * 2;
+
+	dev->edid_max_blocks = dev->edid_blocks = 2;
+	memcpy(dev->edid, vivid_hdmi_edid, sizeof(vivid_hdmi_edid));
+	dev->radio_rds_init_time = ktime_get();
+	INIT_WORK(&dev->update_hdmi_ctrl_work, update_hdmi_ctrls_work_handler);
+	INIT_WORK(&dev->update_svid_ctrl_work, update_svid_ctrls_work_handler);
+	for (int j = 0, k = 0; j < dev->num_inputs; ++j)
+		if (dev->input_type[j] == HDMI)
+			dev->hdmi_index_to_input_index[k++] = j;
+	for (int j = 0, k = 0; j < dev->num_outputs; ++j)
+		if (dev->output_type[j] == HDMI) {
+			dev->output_to_iface_index[j] = k;
+			dev->hdmi_index_to_output_index[k++] = j;
+		}
+	for (int j = 0, k = 0; j < dev->num_inputs; ++j)
+		if (dev->input_type[j] == SVID)
+			dev->svid_index_to_input_index[k++] = j;
+	for (int j = 0, k = 0; j < dev->num_outputs; ++j)
+		if (dev->output_type[j] == SVID)
+			dev->output_to_iface_index[j] = k++;
+
+	/* create all controls */
+	ret = vivid_create_controls(dev, ccs_cap == -1, ccs_out == -1, no_error_inj,
+			in_type_counter[TV] || in_type_counter[SVID] ||
+			out_type_counter[SVID],
+			in_type_counter[HDMI] || out_type_counter[HDMI]);
+	if (ret)
+		goto unreg_dev;
+
+	/* enable/disable interface specific controls */
+	if (dev->num_inputs && dev->input_type[0] != HDMI) {
+		v4l2_ctrl_activate(dev->ctrl_dv_timings_signal_mode, false);
+		v4l2_ctrl_activate(dev->ctrl_dv_timings, false);
+	} else if (dev->num_inputs && dev->input_type[0] == HDMI) {
+		v4l2_ctrl_activate(dev->ctrl_std_signal_mode, false);
+		v4l2_ctrl_activate(dev->ctrl_standard, false);
+	}
+
+	/*
+	 * update the capture and output formats to do a proper initial
+	 * configuration.
+	 */
+	vivid_update_format_cap(dev, false);
+	vivid_update_format_out(dev);
+
+	/* update touch configuration */
+	dev->timeperframe_tch_cap.numerator = 1;
+	dev->timeperframe_tch_cap.denominator = 10;
+	vivid_set_touch(dev, 0);
+
+	/* initialize locks */
+	spin_lock_init(&dev->slock);
+	mutex_init(&dev->mutex);
+
+	/* init dma queues */
+	INIT_LIST_HEAD(&dev->vid_cap_active);
+	INIT_LIST_HEAD(&dev->vid_out_active);
+	INIT_LIST_HEAD(&dev->vbi_cap_active);
+	INIT_LIST_HEAD(&dev->vbi_out_active);
+	INIT_LIST_HEAD(&dev->sdr_cap_active);
+	INIT_LIST_HEAD(&dev->meta_cap_active);
+	INIT_LIST_HEAD(&dev->meta_out_active);
+	INIT_LIST_HEAD(&dev->touch_cap_active);
+
+	spin_lock_init(&dev->cec_xfers_slock);
+
+	if (allocators[inst] == 1)
+		dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+
+	ret = vivid_create_queues(dev);
+	if (ret)
+		goto unreg_dev;
+
+#ifdef CONFIG_VIDEO_VIVID_CEC
+	if (dev->has_vid_cap && in_type_counter[HDMI]) {
+		struct cec_adapter *adap;
+
+		adap = vivid_cec_alloc_adap(dev, 0, false);
+		ret = PTR_ERR_OR_ZERO(adap);
+		if (ret < 0)
+			goto unreg_dev;
+		dev->cec_rx_adap = adap;
+	}
+
+	if (dev->has_vid_out) {
+		int j;
+
+		for (i = j = 0; i < dev->num_outputs; i++) {
+			struct cec_adapter *adap;
+
+			if (dev->output_type[i] != HDMI)
+				continue;
+
+			adap = vivid_cec_alloc_adap(dev, j, true);
+			ret = PTR_ERR_OR_ZERO(adap);
+			if (ret < 0) {
+				while (j--)
+					cec_delete_adapter(dev->cec_tx_adap[j]);
+				goto unreg_dev;
+			}
+
+			dev->cec_tx_adap[j++] = adap;
+		}
+	}
+
+	if (dev->cec_rx_adap || dev->num_hdmi_outputs) {
+		init_waitqueue_head(&dev->kthread_waitq_cec);
+		dev->kthread_cec = kthread_run(vivid_cec_bus_thread, dev,
+					       "vivid_cec-%s", dev->v4l2_dev.name);
+		if (IS_ERR(dev->kthread_cec)) {
+			ret = PTR_ERR(dev->kthread_cec);
+			dev->kthread_cec = NULL;
+			v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n");
+			goto unreg_dev;
+		}
+	}
+
+#endif
+
+	v4l2_ctrl_handler_setup(&dev->ctrl_hdl_vid_cap);
+	v4l2_ctrl_handler_setup(&dev->ctrl_hdl_vid_out);
+	v4l2_ctrl_handler_setup(&dev->ctrl_hdl_vbi_cap);
+	v4l2_ctrl_handler_setup(&dev->ctrl_hdl_vbi_out);
+	v4l2_ctrl_handler_setup(&dev->ctrl_hdl_radio_rx);
+	v4l2_ctrl_handler_setup(&dev->ctrl_hdl_radio_tx);
+	v4l2_ctrl_handler_setup(&dev->ctrl_hdl_sdr_cap);
+	v4l2_ctrl_handler_setup(&dev->ctrl_hdl_meta_cap);
+	v4l2_ctrl_handler_setup(&dev->ctrl_hdl_meta_out);
+	v4l2_ctrl_handler_setup(&dev->ctrl_hdl_touch_cap);
+
+	/* finally start creating the device nodes */
+	ret = vivid_create_devnodes(pdev, dev, inst,
+				    tvnorms_cap, tvnorms_out,
+				    in_type_counter, out_type_counter);
+	if (ret)
+		goto unreg_dev;
+
+	/* Now that everything is fine, let's add it to device list */
+	vivid_devs[inst] = dev;
+
+	return 0;
+
+unreg_dev:
+	vb2_video_unregister_device(&dev->touch_cap_dev);
+	vb2_video_unregister_device(&dev->meta_out_dev);
+	vb2_video_unregister_device(&dev->meta_cap_dev);
+	video_unregister_device(&dev->radio_tx_dev);
+	video_unregister_device(&dev->radio_rx_dev);
+	vb2_video_unregister_device(&dev->sdr_cap_dev);
+	vb2_video_unregister_device(&dev->vbi_out_dev);
+	vb2_video_unregister_device(&dev->vbi_cap_dev);
+	vb2_video_unregister_device(&dev->vid_out_dev);
+	vb2_video_unregister_device(&dev->vid_cap_dev);
+	cec_unregister_adapter(dev->cec_rx_adap);
+	for (i = 0; i < MAX_HDMI_OUTPUTS; i++)
+		cec_unregister_adapter(dev->cec_tx_adap[i]);
+	if (dev->kthread_cec)
+		kthread_stop(dev->kthread_cec);
+free_dev:
+	v4l2_device_put(&dev->v4l2_dev);
+	return ret;
+}
+
+/* This routine allocates from 1 to n_devs virtual drivers.
+
+   The real maximum number of virtual drivers will depend on how many drivers
+   will succeed. This is limited to the maximum number of devices that
+   videodev supports, which is equal to VIDEO_NUM_DEVICES.
+ */
+static int vivid_probe(struct platform_device *pdev)
+{
+	const struct font_desc *font = find_font("VGA8x16");
+	int ret = 0, i;
+
+	if (font == NULL) {
+		pr_err("vivid: could not find font\n");
+		return -ENODEV;
+	}
+
+	tpg_set_font(font->data);
+
+	n_devs = clamp_t(unsigned, n_devs, 1, VIVID_MAX_DEVS);
+
+	for (i = 0; i < n_devs; i++) {
+		ret = vivid_create_instance(pdev, i);
+		if (ret) {
+			/* If some instantiations succeeded, keep driver */
+			if (i)
+				ret = 0;
+			break;
+		}
+	}
+
+	if (ret < 0) {
+		pr_err("vivid: error %d while loading driver\n", ret);
+		return ret;
+	}
+
+	/* n_devs will reflect the actual number of allocated devices */
+	n_devs = i;
+
+	/* Determine qmenu items actually in use */
+	int hdmi_count = FIXED_MENU_ITEMS;
+	int svid_count = FIXED_MENU_ITEMS;
+
+	for (int i = 0; i < n_devs; i++) {
+		struct vivid_dev *dev = vivid_devs[i];
+
+		if (!dev->has_vid_out)
+			continue;
+		for (int j = 0; j < dev->num_outputs && hdmi_count < MAX_MENU_ITEMS; ++j) {
+			if (dev->output_type[j] == HDMI) {
+				vivid_ctrl_hdmi_to_output_instance[hdmi_count] = vivid_devs[i];
+				vivid_ctrl_hdmi_to_output_index[hdmi_count++] = j;
+			}
+		}
+		for (int j = 0; j < dev->num_outputs && svid_count < MAX_MENU_ITEMS; ++j) {
+			if (dev->output_type[j] == SVID) {
+				vivid_ctrl_svid_to_output_instance[svid_count] = vivid_devs[i];
+				vivid_ctrl_svid_to_output_index[svid_count++] = j;
+			}
+		}
+	}
+	hdmi_count = min(hdmi_count, MAX_MENU_ITEMS);
+	svid_count = min(svid_count, MAX_MENU_ITEMS);
+	for (int i = 0; i < n_devs; i++) {
+		for (int j = 0; j < vivid_devs[i]->num_hdmi_inputs; j++) {
+			struct v4l2_ctrl *c = vivid_devs[i]->ctrl_hdmi_to_output[j];
+
+			v4l2_ctrl_modify_range(c, c->minimum, hdmi_count - 1, 0, c->default_value);
+		}
+		for (int j = 0; j < vivid_devs[i]->num_svid_inputs; j++) {
+			struct v4l2_ctrl *c = vivid_devs[i]->ctrl_svid_to_output[j];
+
+			v4l2_ctrl_modify_range(c, c->minimum, svid_count - 1, 0, c->default_value);
+		}
+	}
+	return ret;
+}
+
+static void vivid_remove(struct platform_device *pdev)
+{
+	struct vivid_dev *dev;
+	unsigned int i, j;
+
+	for (i = 0; i < n_devs; i++) {
+		dev = vivid_devs[i];
+		if (!dev)
+			continue;
+
+		if (dev->disconnect_error)
+			vivid_reconnect(dev);
+#ifdef CONFIG_MEDIA_CONTROLLER
+		media_device_unregister(&dev->mdev);
+#endif
+
+		if (dev->has_vid_cap) {
+			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
+				video_device_node_name(&dev->vid_cap_dev));
+			vb2_video_unregister_device(&dev->vid_cap_dev);
+		}
+		if (dev->has_vid_out) {
+			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
+				video_device_node_name(&dev->vid_out_dev));
+			vb2_video_unregister_device(&dev->vid_out_dev);
+		}
+		if (dev->has_vbi_cap) {
+			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
+				video_device_node_name(&dev->vbi_cap_dev));
+			vb2_video_unregister_device(&dev->vbi_cap_dev);
+		}
+		if (dev->has_vbi_out) {
+			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
+				video_device_node_name(&dev->vbi_out_dev));
+			vb2_video_unregister_device(&dev->vbi_out_dev);
+		}
+		if (dev->has_sdr_cap) {
+			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
+				video_device_node_name(&dev->sdr_cap_dev));
+			vb2_video_unregister_device(&dev->sdr_cap_dev);
+		}
+		if (dev->has_radio_rx) {
+			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
+				video_device_node_name(&dev->radio_rx_dev));
+			video_unregister_device(&dev->radio_rx_dev);
+		}
+		if (dev->has_radio_tx) {
+			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
+				video_device_node_name(&dev->radio_tx_dev));
+			video_unregister_device(&dev->radio_tx_dev);
+		}
+		if (dev->has_fb)
+			vivid_fb_deinit(dev);
+		if (dev->has_meta_cap) {
+			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
+				  video_device_node_name(&dev->meta_cap_dev));
+			vb2_video_unregister_device(&dev->meta_cap_dev);
+		}
+		if (dev->has_meta_out) {
+			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
+				  video_device_node_name(&dev->meta_out_dev));
+			vb2_video_unregister_device(&dev->meta_out_dev);
+		}
+		if (dev->has_touch_cap) {
+			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
+				  video_device_node_name(&dev->touch_cap_dev));
+			vb2_video_unregister_device(&dev->touch_cap_dev);
+		}
+		cec_unregister_adapter(dev->cec_rx_adap);
+		for (j = 0; j < MAX_HDMI_OUTPUTS; j++)
+			cec_unregister_adapter(dev->cec_tx_adap[j]);
+		if (dev->kthread_cec)
+			kthread_stop(dev->kthread_cec);
+		v4l2_device_put(&dev->v4l2_dev);
+		vivid_devs[i] = NULL;
+	}
+}
+
+static void vivid_pdev_release(struct device *dev)
+{
+}
+
+static struct platform_device vivid_pdev = {
+	.name		= "vivid",
+	.dev.release	= vivid_pdev_release,
+};
+
+static struct platform_driver vivid_pdrv = {
+	.probe		= vivid_probe,
+	.remove		= vivid_remove,
+	.driver		= {
+		.name	= "vivid",
+	},
+};
+
+static int __init vivid_init(void)
+{
+	int hdmi_count = FIXED_MENU_ITEMS;
+	int svid_count = FIXED_MENU_ITEMS;
+	int ret = -ENOMEM;
+	unsigned int ndevs;
+
+	/* Sanity check, prevent insane number of vivid instances */
+	if (n_devs > 64)
+		n_devs = 64;
+	ndevs = clamp_t(unsigned int, n_devs, 1, VIVID_MAX_DEVS);
+
+	for (unsigned int i = 0; i < ndevs; i++) {
+		if (!(node_types[i] & (1 << 8)))
+			continue;
+		unsigned int n_outputs = min(num_outputs[i], MAX_OUTPUTS);
+
+		for (u8 j = 0, k = 0; j < n_outputs && hdmi_count < MAX_MENU_ITEMS &&
+		     k < MAX_HDMI_OUTPUTS; ++j) {
+			if (output_types[i] & BIT(j)) {
+				vivid_ctrl_hdmi_to_output_strings[hdmi_count] =
+					kmalloc(MAX_STRING_LENGTH, GFP_KERNEL);
+				if (!vivid_ctrl_hdmi_to_output_strings[hdmi_count])
+					goto free_output_strings;
+				snprintf(vivid_ctrl_hdmi_to_output_strings[hdmi_count],
+					 MAX_STRING_LENGTH, "Output HDMI %03d-%d",
+					 i & 0xff, k);
+				k++;
+				hdmi_count++;
+			}
+		}
+		for (u8 j = 0, k = 0; j < n_outputs && svid_count < MAX_MENU_ITEMS; ++j) {
+			if (!(output_types[i] & BIT(j))) {
+				vivid_ctrl_svid_to_output_strings[svid_count] =
+					kmalloc(MAX_STRING_LENGTH, GFP_KERNEL);
+				if (!vivid_ctrl_svid_to_output_strings[svid_count])
+					goto free_output_strings;
+				snprintf(vivid_ctrl_svid_to_output_strings[svid_count],
+					 MAX_STRING_LENGTH, "Output S-Video %03d-%d",
+					 i & 0xff, k);
+				k++;
+				svid_count++;
+			}
+		}
+	}
+	ret = platform_device_register(&vivid_pdev);
+	if (ret) {
+		platform_device_put(&vivid_pdev);
+		goto free_output_strings;
+	}
+	ret = platform_driver_register(&vivid_pdrv);
+	if (ret)
+		goto unreg_device;
+
+	/* Initialize workqueue before module is loaded */
+	update_hdmi_ctrls_workqueue = create_workqueue("update_hdmi_ctrls_wq");
+	if (!update_hdmi_ctrls_workqueue) {
+		ret = -ENOMEM;
+		goto unreg_driver;
+	}
+	update_svid_ctrls_workqueue = create_workqueue("update_svid_ctrls_wq");
+	if (!update_svid_ctrls_workqueue) {
+		ret = -ENOMEM;
+		goto destroy_hdmi_wq;
+	}
+	return ret;
+
+destroy_hdmi_wq:
+	destroy_workqueue(update_hdmi_ctrls_workqueue);
+unreg_driver:
+	platform_driver_unregister(&vivid_pdrv);
+unreg_device:
+	platform_device_unregister(&vivid_pdev);
+free_output_strings:
+	for (int i = FIXED_MENU_ITEMS; i < MAX_MENU_ITEMS; i++) {
+		kfree(vivid_ctrl_hdmi_to_output_strings[i]);
+		kfree(vivid_ctrl_svid_to_output_strings[i]);
+	}
+	return ret;
+}
+
+static void __exit vivid_exit(void)
+{
+	for (int i = FIXED_MENU_ITEMS; i < MAX_MENU_ITEMS; i++) {
+		kfree(vivid_ctrl_hdmi_to_output_strings[i]);
+		kfree(vivid_ctrl_svid_to_output_strings[i]);
+	}
+	destroy_workqueue(update_svid_ctrls_workqueue);
+	destroy_workqueue(update_hdmi_ctrls_workqueue);
+	platform_driver_unregister(&vivid_pdrv);
+	platform_device_unregister(&vivid_pdev);
+}
+
+module_init(vivid_init);
+module_exit(vivid_exit);
diff --git a/drivers/media/test-drivers/vivid/vivid-core.h b/drivers/media/test-drivers/vivid/vivid-core.h
new file mode 100644
index 000000000..571a6c222
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-core.h
@@ -0,0 +1,706 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-core.h - core datastructures
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_CORE_H_
+#define _VIVID_CORE_H_
+
+#include <linux/fb.h>
+#include <linux/workqueue.h>
+#include <media/cec.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-ctrls.h>
+#include <media/tpg/v4l2-tpg.h>
+#include "vivid-rds-gen.h"
+#include "vivid-vbi-gen.h"
+
+#define dprintk(dev, level, fmt, arg...) \
+	v4l2_dbg(level, vivid_debug, &dev->v4l2_dev, fmt, ## arg)
+
+/* The maximum number of inputs */
+#define MAX_INPUTS 16
+/* The maximum number of outputs */
+#define MAX_OUTPUTS 16
+/* The maximum number of video capture buffers */
+#define MAX_VID_CAP_BUFFERS 64
+/* The maximum up or down scaling factor is 4 */
+#define MAX_ZOOM  4
+/* The maximum image width/height are set to 4K DMT */
+#define MAX_WIDTH  4096
+#define MAX_HEIGHT 2160
+/* The minimum image width/height */
+#define MIN_WIDTH  16
+#define MIN_HEIGHT MIN_WIDTH
+/* Pixel Array control divider */
+#define PIXEL_ARRAY_DIV MIN_WIDTH
+/* The data_offset of plane 0 for the multiplanar formats */
+#define PLANE0_DATA_OFFSET 128
+
+/* The supported TV frequency range in MHz */
+#define MIN_TV_FREQ (44U * 16U)
+#define MAX_TV_FREQ (958U * 16U)
+
+/* The number of samples returned in every SDR buffer */
+#define SDR_CAP_SAMPLES_PER_BUF 0x4000
+
+/* used by the threads to know when to resync internal counters */
+#define JIFFIES_PER_DAY (3600U * 24U * HZ)
+#define JIFFIES_RESYNC (JIFFIES_PER_DAY * (0xf0000000U / JIFFIES_PER_DAY))
+
+/*
+ * Maximum number of HDMI inputs allowed by vivid, due to limitations
+ * of the Physical Address in the EDID and used by CEC we stop at 15
+ * inputs and outputs.
+ */
+#define MAX_HDMI_INPUTS 15
+#define MAX_HDMI_OUTPUTS 15
+
+/* Maximum number of S-Video inputs allowed by vivid */
+#define MAX_SVID_INPUTS 16
+
+/* The maximum number of items in a menu control */
+#define MAX_MENU_ITEMS BITS_PER_LONG_LONG
+
+/* Number of fixed menu items in the 'Connected To' menu controls */
+#define FIXED_MENU_ITEMS 2
+
+/* The maximum number of vivid devices */
+#define VIVID_MAX_DEVS CONFIG_VIDEO_VIVID_MAX_DEVS
+
+extern const struct v4l2_rect vivid_min_rect;
+extern const struct v4l2_rect vivid_max_rect;
+extern unsigned vivid_debug;
+
+/*
+ * NULL-terminated string array for the HDMI 'Connected To' menu controls
+ * with the list of possible HDMI outputs.
+ *
+ * The first two items are fixed ("TPG" and "None").
+ */
+extern char *vivid_ctrl_hdmi_to_output_strings[1 + MAX_MENU_ITEMS];
+/* Menu control skip mask of all HDMI outputs that are in use */
+extern u64 hdmi_to_output_menu_skip_mask;
+/*
+ * Bitmask of which vivid instances need to update any connected
+ * HDMI outputs.
+ */
+extern u64 hdmi_input_update_outputs_mask;
+/*
+ * Spinlock for access to hdmi_to_output_menu_skip_mask and
+ * hdmi_input_update_outputs_mask.
+ */
+extern spinlock_t hdmi_output_skip_mask_lock;
+/*
+ * Workqueue that updates the menu controls whenever the HDMI menu skip mask
+ * changes.
+ */
+extern struct workqueue_struct *update_hdmi_ctrls_workqueue;
+
+/*
+ * The HDMI menu control value (index in the menu list) maps to an HDMI
+ * output that is part of the given vivid_dev instance and has the given
+ * output index (as returned by VIDIOC_G_OUTPUT).
+ *
+ * NULL/0 if not available.
+ */
+extern struct vivid_dev *vivid_ctrl_hdmi_to_output_instance[MAX_MENU_ITEMS];
+extern unsigned int vivid_ctrl_hdmi_to_output_index[MAX_MENU_ITEMS];
+
+/*
+ * NULL-terminated string array for the S-Video 'Connected To' menu controls
+ * with the list of possible S-Video outputs.
+ *
+ * The first two items are fixed ("TPG" and "None").
+ */
+extern char *vivid_ctrl_svid_to_output_strings[1 + MAX_MENU_ITEMS];
+/* Menu control skip mask of all S-Video outputs that are in use */
+extern u64 svid_to_output_menu_skip_mask;
+/* Spinlock for access to svid_to_output_menu_skip_mask */
+extern spinlock_t svid_output_skip_mask_lock;
+/*
+ * Workqueue that updates the menu controls whenever the S-Video menu skip mask
+ * changes.
+ */
+extern struct workqueue_struct *update_svid_ctrls_workqueue;
+
+/*
+ * The S-Video menu control value (index in the menu list) maps to an S-Video
+ * output that is part of the given vivid_dev instance and has the given
+ * output index (as returned by VIDIOC_G_OUTPUT).
+ *
+ * NULL/0 if not available.
+ */
+extern struct vivid_dev *vivid_ctrl_svid_to_output_instance[MAX_MENU_ITEMS];
+extern unsigned int vivid_ctrl_svid_to_output_index[MAX_MENU_ITEMS];
+
+extern struct vivid_dev *vivid_devs[VIVID_MAX_DEVS];
+extern unsigned int n_devs;
+
+struct vivid_fmt {
+	u32	fourcc;          /* v4l2 format id */
+	enum	tgp_color_enc color_enc;
+	bool	can_do_overlay;
+	u8	vdownsampling[TPG_MAX_PLANES];
+	u32	alpha_mask;
+	u8	planes;
+	u8	buffers;
+	u32	data_offset[TPG_MAX_PLANES];
+	u32	bit_depth[TPG_MAX_PLANES];
+};
+
+extern struct vivid_fmt vivid_formats[];
+
+/* buffer for one video frame */
+struct vivid_buffer {
+	/* common v4l buffer stuff -- must be first */
+	struct vb2_v4l2_buffer vb;
+	struct list_head	list;
+};
+
+enum vivid_input {
+	WEBCAM,
+	TV,
+	SVID,
+	HDMI,
+};
+
+enum vivid_signal_mode {
+	CURRENT_DV_TIMINGS,
+	CURRENT_STD = CURRENT_DV_TIMINGS,
+	NO_SIGNAL,
+	NO_LOCK,
+	OUT_OF_RANGE,
+	SELECTED_DV_TIMINGS,
+	SELECTED_STD = SELECTED_DV_TIMINGS,
+	CYCLE_DV_TIMINGS,
+	CYCLE_STD = CYCLE_DV_TIMINGS,
+	CUSTOM_DV_TIMINGS,
+};
+
+enum vivid_colorspace {
+	VIVID_CS_170M,
+	VIVID_CS_709,
+	VIVID_CS_SRGB,
+	VIVID_CS_OPRGB,
+	VIVID_CS_2020,
+	VIVID_CS_DCI_P3,
+	VIVID_CS_240M,
+	VIVID_CS_SYS_M,
+	VIVID_CS_SYS_BG,
+};
+
+#define VIVID_INVALID_SIGNAL(mode) \
+	((mode) == NO_SIGNAL || (mode) == NO_LOCK || (mode) == OUT_OF_RANGE)
+
+struct vivid_cec_xfer {
+	struct cec_adapter	*adap;
+	u8			msg[CEC_MAX_MSG_SIZE];
+	u32			len;
+	u32			sft;
+};
+
+struct vivid_dev {
+	u8				inst;
+	struct v4l2_device		v4l2_dev;
+#ifdef CONFIG_MEDIA_CONTROLLER
+	struct media_device		mdev;
+	struct media_pad		vid_cap_pad;
+	struct media_pad		vid_out_pad;
+	struct media_pad		vbi_cap_pad;
+	struct media_pad		vbi_out_pad;
+	struct media_pad		sdr_cap_pad;
+	struct media_pad		meta_cap_pad;
+	struct media_pad		meta_out_pad;
+	struct media_pad		touch_cap_pad;
+#endif
+	struct v4l2_ctrl_handler	ctrl_hdl_user_gen;
+	struct v4l2_ctrl_handler	ctrl_hdl_user_vid;
+	struct v4l2_ctrl_handler	ctrl_hdl_user_aud;
+	struct v4l2_ctrl_handler	ctrl_hdl_streaming;
+	struct v4l2_ctrl_handler	ctrl_hdl_sdtv_cap;
+	struct v4l2_ctrl_handler	ctrl_hdl_loop_cap;
+	struct v4l2_ctrl_handler	ctrl_hdl_fb;
+	struct video_device		vid_cap_dev;
+	struct v4l2_ctrl_handler	ctrl_hdl_vid_cap;
+	struct video_device		vid_out_dev;
+	struct v4l2_ctrl_handler	ctrl_hdl_vid_out;
+	struct video_device		vbi_cap_dev;
+	struct v4l2_ctrl_handler	ctrl_hdl_vbi_cap;
+	struct video_device		vbi_out_dev;
+	struct v4l2_ctrl_handler	ctrl_hdl_vbi_out;
+	struct video_device		radio_rx_dev;
+	struct v4l2_ctrl_handler	ctrl_hdl_radio_rx;
+	struct video_device		radio_tx_dev;
+	struct v4l2_ctrl_handler	ctrl_hdl_radio_tx;
+	struct video_device		sdr_cap_dev;
+	struct v4l2_ctrl_handler	ctrl_hdl_sdr_cap;
+	struct video_device		meta_cap_dev;
+	struct v4l2_ctrl_handler	ctrl_hdl_meta_cap;
+	struct video_device		meta_out_dev;
+	struct v4l2_ctrl_handler	ctrl_hdl_meta_out;
+	struct video_device		touch_cap_dev;
+	struct v4l2_ctrl_handler	ctrl_hdl_touch_cap;
+
+	spinlock_t			slock;
+	struct mutex			mutex;
+	struct work_struct		update_hdmi_ctrl_work;
+	struct work_struct		update_svid_ctrl_work;
+
+	/* capabilities */
+	u32				vid_cap_caps;
+	u32				vid_out_caps;
+	u32				vbi_cap_caps;
+	u32				vbi_out_caps;
+	u32				sdr_cap_caps;
+	u32				radio_rx_caps;
+	u32				radio_tx_caps;
+	u32				meta_cap_caps;
+	u32				meta_out_caps;
+	u32				touch_cap_caps;
+
+	/* supported features */
+	bool				multiplanar;
+	u8				num_inputs;
+	u8				num_hdmi_inputs;
+	u8				num_svid_inputs;
+	u8				input_type[MAX_INPUTS];
+	u8				input_name_counter[MAX_INPUTS];
+	u8				num_outputs;
+	u8				num_hdmi_outputs;
+	u8				output_type[MAX_OUTPUTS];
+	u8				output_name_counter[MAX_OUTPUTS];
+	bool				has_audio_inputs;
+	bool				has_audio_outputs;
+	bool				has_vid_cap;
+	bool				has_vid_out;
+	bool				has_vbi_cap;
+	bool				has_raw_vbi_cap;
+	bool				has_sliced_vbi_cap;
+	bool				has_vbi_out;
+	bool				has_raw_vbi_out;
+	bool				has_sliced_vbi_out;
+	bool				has_radio_rx;
+	bool				has_radio_tx;
+	bool				has_sdr_cap;
+	bool				has_fb;
+	bool				has_meta_cap;
+	bool				has_meta_out;
+	bool				has_tv_tuner;
+	bool				has_touch_cap;
+
+	/* Output index (0-MAX_OUTPUTS) to vivid instance of connected input */
+	struct vivid_dev		*output_to_input_instance[MAX_OUTPUTS];
+	/* Output index (0-MAX_OUTPUTS) to input index (0-MAX_INPUTS) of connected input */
+	u8				output_to_input_index[MAX_OUTPUTS];
+	/* Output index (0-MAX_OUTPUTS) to HDMI or S-Video output index (0-MAX_HDMI/SVID_OUTPUTS) */
+	u8				output_to_iface_index[MAX_OUTPUTS];
+	/* ctrl_hdmi_to_output or ctrl_svid_to_output control value for each input */
+	s32                             input_is_connected_to_output[MAX_INPUTS];
+	/* HDMI index (0-MAX_HDMI_OUTPUTS) to output index (0-MAX_OUTPUTS) */
+	u8				hdmi_index_to_output_index[MAX_HDMI_OUTPUTS];
+	/* HDMI index (0-MAX_HDMI_INPUTS) to input index (0-MAX_INPUTS) */
+	u8				hdmi_index_to_input_index[MAX_HDMI_INPUTS];
+	/* S-Video index (0-MAX_SVID_INPUTS) to input index (0-MAX_INPUTS) */
+	u8				svid_index_to_input_index[MAX_SVID_INPUTS];
+
+	/* controls */
+	struct v4l2_ctrl		*brightness;
+	struct v4l2_ctrl		*contrast;
+	struct v4l2_ctrl		*saturation;
+	struct v4l2_ctrl		*hue;
+	struct {
+		/* autogain/gain cluster */
+		struct v4l2_ctrl	*autogain;
+		struct v4l2_ctrl	*gain;
+	};
+	struct v4l2_ctrl		*volume;
+	struct v4l2_ctrl		*mute;
+	struct v4l2_ctrl		*alpha;
+	struct v4l2_ctrl		*button;
+	struct v4l2_ctrl		*boolean;
+	struct v4l2_ctrl		*int32;
+	struct v4l2_ctrl		*int64;
+	struct v4l2_ctrl		*menu;
+	struct v4l2_ctrl		*string;
+	struct v4l2_ctrl		*bitmask;
+	struct v4l2_ctrl		*int_menu;
+	struct v4l2_ctrl		*ro_int32;
+	struct v4l2_ctrl		*pixel_array;
+	struct v4l2_ctrl		*test_pattern;
+	struct v4l2_ctrl		*colorspace;
+	struct v4l2_ctrl		*rgb_range_cap;
+	struct v4l2_ctrl		*real_rgb_range_cap;
+	struct {
+		/* std_signal_mode/standard cluster */
+		struct v4l2_ctrl	*ctrl_std_signal_mode;
+		struct v4l2_ctrl	*ctrl_standard;
+	};
+	struct {
+		/* dv_timings_signal_mode/timings cluster */
+		struct v4l2_ctrl	*ctrl_dv_timings_signal_mode;
+		struct v4l2_ctrl	*ctrl_dv_timings;
+	};
+	struct v4l2_ctrl		*ctrl_has_crop_cap;
+	struct v4l2_ctrl		*ctrl_has_compose_cap;
+	struct v4l2_ctrl		*ctrl_has_scaler_cap;
+	struct v4l2_ctrl		*ctrl_has_crop_out;
+	struct v4l2_ctrl		*ctrl_has_compose_out;
+	struct v4l2_ctrl		*ctrl_has_scaler_out;
+	struct v4l2_ctrl		*ctrl_tx_mode;
+	struct v4l2_ctrl		*ctrl_tx_rgb_range;
+	struct v4l2_ctrl		*ctrl_tx_edid_present;
+	struct v4l2_ctrl		*ctrl_tx_hotplug;
+	struct v4l2_ctrl		*ctrl_tx_rxsense;
+
+	struct v4l2_ctrl		*ctrl_rx_power_present;
+
+	struct v4l2_ctrl		*radio_tx_rds_pi;
+	struct v4l2_ctrl		*radio_tx_rds_pty;
+	struct v4l2_ctrl		*radio_tx_rds_mono_stereo;
+	struct v4l2_ctrl		*radio_tx_rds_art_head;
+	struct v4l2_ctrl		*radio_tx_rds_compressed;
+	struct v4l2_ctrl		*radio_tx_rds_dyn_pty;
+	struct v4l2_ctrl		*radio_tx_rds_ta;
+	struct v4l2_ctrl		*radio_tx_rds_tp;
+	struct v4l2_ctrl		*radio_tx_rds_ms;
+	struct v4l2_ctrl		*radio_tx_rds_psname;
+	struct v4l2_ctrl		*radio_tx_rds_radiotext;
+
+	struct v4l2_ctrl		*radio_rx_rds_pty;
+	struct v4l2_ctrl		*radio_rx_rds_ta;
+	struct v4l2_ctrl		*radio_rx_rds_tp;
+	struct v4l2_ctrl		*radio_rx_rds_ms;
+	struct v4l2_ctrl		*radio_rx_rds_psname;
+	struct v4l2_ctrl		*radio_rx_rds_radiotext;
+
+	struct v4l2_ctrl                *ctrl_hdmi_to_output[MAX_HDMI_INPUTS];
+	char				ctrl_hdmi_to_output_names[MAX_HDMI_INPUTS][32];
+	struct v4l2_ctrl		*ctrl_svid_to_output[MAX_SVID_INPUTS];
+	char				ctrl_svid_to_output_names[MAX_SVID_INPUTS][32];
+
+	unsigned			input_brightness[MAX_INPUTS];
+	unsigned			osd_mode;
+	unsigned			button_pressed;
+	bool				sensor_hflip;
+	bool				sensor_vflip;
+	bool				hflip;
+	bool				vflip;
+	bool				vbi_cap_interlaced;
+	bool				loop_video;
+	bool				reduced_fps;
+
+	/* Framebuffer */
+	unsigned long			video_pbase;
+	void				*video_vbase;
+	u32				video_buffer_size;
+	int				display_width;
+	int				display_height;
+	int				display_byte_stride;
+	int				bits_per_pixel;
+	int				bytes_per_pixel;
+#ifdef CONFIG_VIDEO_VIVID_OSD
+	struct fb_info			fb_info;
+	struct fb_var_screeninfo	fb_defined;
+	struct fb_fix_screeninfo	fb_fix;
+#endif
+
+	/* Error injection */
+	bool				disconnect_error;
+	bool				queue_setup_error;
+	bool				buf_prepare_error;
+	bool				start_streaming_error;
+	bool				dqbuf_error;
+	bool				req_validate_error;
+	bool				seq_wrap;
+	u64				time_wrap;
+	u64				time_wrap_offset;
+	unsigned			perc_dropped_buffers;
+	enum vivid_signal_mode		std_signal_mode[MAX_INPUTS];
+	unsigned int			query_std_last[MAX_INPUTS];
+	v4l2_std_id			query_std[MAX_INPUTS];
+	enum tpg_video_aspect		std_aspect_ratio[MAX_INPUTS];
+
+	enum vivid_signal_mode		dv_timings_signal_mode[MAX_INPUTS];
+	char				**query_dv_timings_qmenu;
+	char				*query_dv_timings_qmenu_strings;
+	unsigned			query_dv_timings_size;
+	unsigned int			query_dv_timings_last[MAX_INPUTS];
+	unsigned int			query_dv_timings[MAX_INPUTS];
+	enum tpg_video_aspect		dv_timings_aspect_ratio[MAX_INPUTS];
+
+	/* Input */
+	unsigned			input;
+	v4l2_std_id			std_cap[MAX_INPUTS];
+	struct v4l2_dv_timings		dv_timings_cap[MAX_INPUTS];
+	int				dv_timings_cap_sel[MAX_INPUTS];
+	u32				service_set_cap;
+	struct vivid_vbi_gen_data	vbi_gen;
+	u8				*edid;
+	unsigned			edid_blocks;
+	unsigned			edid_max_blocks;
+	unsigned			webcam_size_idx;
+	unsigned			webcam_ival_idx;
+	unsigned			tv_freq;
+	unsigned			tv_audmode;
+	unsigned			tv_field_cap;
+	unsigned			tv_audio_input;
+
+	u32				power_present;
+
+	/* Output */
+	unsigned			output;
+	v4l2_std_id			std_out;
+	struct v4l2_dv_timings		dv_timings_out;
+	u32				colorspace_out;
+	u32				ycbcr_enc_out;
+	u32				hsv_enc_out;
+	u32				quantization_out;
+	u32				xfer_func_out;
+	u32				service_set_out;
+	unsigned			bytesperline_out[TPG_MAX_PLANES];
+	unsigned			tv_field_out;
+	unsigned			tv_audio_output;
+	bool				vbi_out_have_wss;
+	u8				vbi_out_wss[2];
+	bool				vbi_out_have_cc[2];
+	u8				vbi_out_cc[2][2];
+	bool				dvi_d_out;
+	u8				*scaled_line;
+	u8				*blended_line;
+	unsigned			cur_scaled_line;
+
+	/* Output Overlay */
+	void				*fb_vbase_out;
+	bool				overlay_out_enabled;
+	int				overlay_out_top, overlay_out_left;
+	unsigned			fbuf_out_flags;
+	u32				chromakey_out;
+	u8				global_alpha_out;
+
+	/* video capture */
+	struct tpg_data			tpg;
+	unsigned			ms_vid_cap;
+	bool				must_blank[MAX_VID_CAP_BUFFERS];
+
+	const struct vivid_fmt		*fmt_cap;
+	struct v4l2_fract		timeperframe_vid_cap;
+	enum v4l2_field			field_cap;
+	struct v4l2_rect		src_rect;
+	struct v4l2_rect		fmt_cap_rect;
+	struct v4l2_rect		crop_cap;
+	struct v4l2_rect		compose_cap;
+	struct v4l2_rect		crop_bounds_cap;
+	struct vb2_queue		vb_vid_cap_q;
+	struct list_head		vid_cap_active;
+	struct vb2_queue		vb_vbi_cap_q;
+	struct list_head		vbi_cap_active;
+	struct vb2_queue		vb_meta_cap_q;
+	struct list_head		meta_cap_active;
+	struct vb2_queue		vb_touch_cap_q;
+	struct list_head		touch_cap_active;
+
+	/* thread for generating video capture stream */
+	struct task_struct		*kthread_vid_cap;
+	unsigned long			jiffies_vid_cap;
+	u64				cap_stream_start;
+	u64				cap_frame_period;
+	u64				cap_frame_eof_offset;
+	u32				cap_seq_offset;
+	u32				cap_seq_count;
+	bool				cap_seq_resync;
+	u32				vid_cap_seq_start;
+	u32				vid_cap_seq_count;
+	bool				vid_cap_streaming;
+	u32				vbi_cap_seq_start;
+	u32				vbi_cap_seq_count;
+	bool				vbi_cap_streaming;
+	u32				meta_cap_seq_start;
+	u32				meta_cap_seq_count;
+	bool				meta_cap_streaming;
+
+	/* Touch capture */
+	struct task_struct		*kthread_touch_cap;
+	unsigned long			jiffies_touch_cap;
+	u64				touch_cap_stream_start;
+	u32				touch_cap_seq_offset;
+	bool				touch_cap_seq_resync;
+	u32				touch_cap_seq_start;
+	u32				touch_cap_seq_count;
+	u32				touch_cap_with_seq_wrap_count;
+	bool				touch_cap_streaming;
+	struct v4l2_fract		timeperframe_tch_cap;
+	struct v4l2_pix_format		tch_format;
+	int				tch_pat_random;
+
+	/* video output */
+	const struct vivid_fmt		*fmt_out;
+	struct v4l2_fract		timeperframe_vid_out;
+	enum v4l2_field			field_out;
+	struct v4l2_rect		sink_rect;
+	struct v4l2_rect		fmt_out_rect;
+	struct v4l2_rect		crop_out;
+	struct v4l2_rect		compose_out;
+	struct v4l2_rect		compose_bounds_out;
+	struct vb2_queue		vb_vid_out_q;
+	struct list_head		vid_out_active;
+	struct vb2_queue		vb_vbi_out_q;
+	struct list_head		vbi_out_active;
+	struct vb2_queue		vb_meta_out_q;
+	struct list_head		meta_out_active;
+
+	/* video loop precalculated rectangles */
+
+	/*
+	 * Intersection between what the output side composes and the capture side
+	 * crops. I.e., what actually needs to be copied from the output buffer to
+	 * the capture buffer.
+	 */
+	struct v4l2_rect		loop_vid_copy;
+	/* The part of the output buffer that (after scaling) corresponds to loop_vid_copy. */
+	struct v4l2_rect		loop_vid_out;
+	/* The part of the capture buffer that (after scaling) corresponds to loop_vid_copy. */
+	struct v4l2_rect		loop_vid_cap;
+	/*
+	 * The intersection of the framebuffer, the overlay output window and
+	 * loop_vid_copy. I.e., the part of the framebuffer that actually should be
+	 * blended with the compose_out rectangle. This uses the framebuffer origin.
+	 */
+	struct v4l2_rect		loop_fb_copy;
+	/* The same as loop_fb_copy but with compose_out origin. */
+	struct v4l2_rect		loop_vid_overlay;
+	/*
+	 * The part of the capture buffer that (after scaling) corresponds
+	 * to loop_vid_overlay.
+	 */
+	struct v4l2_rect		loop_vid_overlay_cap;
+
+	/* thread for generating video output stream */
+	struct task_struct		*kthread_vid_out;
+	unsigned long			jiffies_vid_out;
+	u32				out_seq_offset;
+	u32				out_seq_count;
+	bool				out_seq_resync;
+	u32				vid_out_seq_start;
+	u32				vid_out_seq_count;
+	bool				vid_out_streaming;
+	u32				vbi_out_seq_start;
+	u32				vbi_out_seq_count;
+	bool				vbi_out_streaming;
+	bool				stream_sliced_vbi_out;
+	u32				meta_out_seq_start;
+	u32				meta_out_seq_count;
+	bool				meta_out_streaming;
+
+	/* SDR capture */
+	struct vb2_queue		vb_sdr_cap_q;
+	struct list_head		sdr_cap_active;
+	u32				sdr_pixelformat; /* v4l2 format id */
+	unsigned			sdr_buffersize;
+	unsigned			sdr_adc_freq;
+	unsigned			sdr_fm_freq;
+	unsigned			sdr_fm_deviation;
+	int				sdr_fixp_src_phase;
+	int				sdr_fixp_mod_phase;
+
+	bool				tstamp_src_is_soe;
+	bool				has_crop_cap;
+	bool				has_compose_cap;
+	bool				has_scaler_cap;
+	bool				has_crop_out;
+	bool				has_compose_out;
+	bool				has_scaler_out;
+
+	/* thread for generating SDR stream */
+	struct task_struct		*kthread_sdr_cap;
+	unsigned long			jiffies_sdr_cap;
+	u32				sdr_cap_seq_offset;
+	u32				sdr_cap_seq_start;
+	u32				sdr_cap_seq_count;
+	u32				sdr_cap_with_seq_wrap_count;
+	bool				sdr_cap_seq_resync;
+
+	/* RDS generator */
+	struct vivid_rds_gen		rds_gen;
+
+	/* Radio receiver */
+	unsigned			radio_rx_freq;
+	unsigned			radio_rx_audmode;
+	int				radio_rx_sig_qual;
+	unsigned			radio_rx_hw_seek_mode;
+	bool				radio_rx_hw_seek_prog_lim;
+	bool				radio_rx_rds_controls;
+	bool				radio_rx_rds_enabled;
+	unsigned			radio_rx_rds_use_alternates;
+	unsigned			radio_rx_rds_last_block;
+	struct v4l2_fh			*radio_rx_rds_owner;
+
+	/* Radio transmitter */
+	unsigned			radio_tx_freq;
+	unsigned			radio_tx_subchans;
+	bool				radio_tx_rds_controls;
+	unsigned			radio_tx_rds_last_block;
+	struct v4l2_fh			*radio_tx_rds_owner;
+
+	/* Shared between radio receiver and transmitter */
+	bool				radio_rds_loop;
+	ktime_t				radio_rds_init_time;
+
+	/* CEC */
+	struct cec_adapter		*cec_rx_adap;
+	struct cec_adapter		*cec_tx_adap[MAX_HDMI_OUTPUTS];
+	struct task_struct		*kthread_cec;
+	wait_queue_head_t		kthread_waitq_cec;
+	struct vivid_cec_xfer		xfers[MAX_OUTPUTS];
+	spinlock_t			cec_xfers_slock; /* read and write cec messages */
+	u32				cec_sft; /* bus signal free time, in bit periods */
+	u8				last_initiator;
+
+	/* CEC OSD String */
+	char				osd[14];
+	unsigned long			osd_jiffies;
+
+	bool				meta_pts;
+	bool				meta_scr;
+};
+
+static inline bool vivid_is_webcam(const struct vivid_dev *dev)
+{
+	return dev->input_type[dev->input] == WEBCAM;
+}
+
+static inline bool vivid_is_tv_cap(const struct vivid_dev *dev)
+{
+	return dev->input_type[dev->input] == TV;
+}
+
+static inline bool vivid_is_svid_cap(const struct vivid_dev *dev)
+{
+	return dev->input_type[dev->input] == SVID;
+}
+
+static inline bool vivid_is_hdmi_cap(const struct vivid_dev *dev)
+{
+	return dev->input_type[dev->input] == HDMI;
+}
+
+static inline bool vivid_is_sdtv_cap(const struct vivid_dev *dev)
+{
+	return vivid_is_tv_cap(dev) || vivid_is_svid_cap(dev);
+}
+
+static inline bool vivid_is_svid_out(const struct vivid_dev *dev)
+{
+	return dev->output_type[dev->output] == SVID;
+}
+
+static inline bool vivid_is_hdmi_out(const struct vivid_dev *dev)
+{
+	return dev->output_type[dev->output] == HDMI;
+}
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-ctrls.c b/drivers/media/test-drivers/vivid/vivid-ctrls.c
new file mode 100644
index 000000000..a8a134b36
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-ctrls.c
@@ -0,0 +1,2120 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-ctrls.c - control support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-common.h>
+
+#include "vivid-core.h"
+#include "vivid-vid-cap.h"
+#include "vivid-vid-out.h"
+#include "vivid-vid-common.h"
+#include "vivid-radio-common.h"
+#include "vivid-osd.h"
+#include "vivid-ctrls.h"
+
+#define VIVID_CID_CUSTOM_BASE		(V4L2_CID_USER_BASE | 0xf000)
+#define VIVID_CID_BUTTON		(VIVID_CID_CUSTOM_BASE + 0)
+#define VIVID_CID_BOOLEAN		(VIVID_CID_CUSTOM_BASE + 1)
+#define VIVID_CID_INTEGER		(VIVID_CID_CUSTOM_BASE + 2)
+#define VIVID_CID_INTEGER64		(VIVID_CID_CUSTOM_BASE + 3)
+#define VIVID_CID_MENU			(VIVID_CID_CUSTOM_BASE + 4)
+#define VIVID_CID_STRING		(VIVID_CID_CUSTOM_BASE + 5)
+#define VIVID_CID_BITMASK		(VIVID_CID_CUSTOM_BASE + 6)
+#define VIVID_CID_INTMENU		(VIVID_CID_CUSTOM_BASE + 7)
+#define VIVID_CID_U32_ARRAY		(VIVID_CID_CUSTOM_BASE + 8)
+#define VIVID_CID_U16_MATRIX		(VIVID_CID_CUSTOM_BASE + 9)
+#define VIVID_CID_U8_4D_ARRAY		(VIVID_CID_CUSTOM_BASE + 10)
+#define VIVID_CID_AREA			(VIVID_CID_CUSTOM_BASE + 11)
+#define VIVID_CID_RO_INTEGER		(VIVID_CID_CUSTOM_BASE + 12)
+#define VIVID_CID_U32_DYN_ARRAY		(VIVID_CID_CUSTOM_BASE + 13)
+#define VIVID_CID_U8_PIXEL_ARRAY	(VIVID_CID_CUSTOM_BASE + 14)
+#define VIVID_CID_S32_ARRAY		(VIVID_CID_CUSTOM_BASE + 15)
+#define VIVID_CID_S64_ARRAY		(VIVID_CID_CUSTOM_BASE + 16)
+#define VIVID_CID_RECT			(VIVID_CID_CUSTOM_BASE + 17)
+
+#define VIVID_CID_VIVID_BASE		(0x00f00000 | 0xf000)
+#define VIVID_CID_VIVID_CLASS		(0x00f00000 | 1)
+#define VIVID_CID_TEST_PATTERN		(VIVID_CID_VIVID_BASE + 0)
+#define VIVID_CID_OSD_TEXT_MODE		(VIVID_CID_VIVID_BASE + 1)
+#define VIVID_CID_HOR_MOVEMENT		(VIVID_CID_VIVID_BASE + 2)
+#define VIVID_CID_VERT_MOVEMENT		(VIVID_CID_VIVID_BASE + 3)
+#define VIVID_CID_SHOW_BORDER		(VIVID_CID_VIVID_BASE + 4)
+#define VIVID_CID_SHOW_SQUARE		(VIVID_CID_VIVID_BASE + 5)
+#define VIVID_CID_INSERT_SAV		(VIVID_CID_VIVID_BASE + 6)
+#define VIVID_CID_INSERT_EAV		(VIVID_CID_VIVID_BASE + 7)
+#define VIVID_CID_VBI_CAP_INTERLACED	(VIVID_CID_VIVID_BASE + 8)
+#define VIVID_CID_INSERT_HDMI_VIDEO_GUARD_BAND (VIVID_CID_VIVID_BASE + 9)
+
+#define VIVID_CID_HFLIP			(VIVID_CID_VIVID_BASE + 20)
+#define VIVID_CID_VFLIP			(VIVID_CID_VIVID_BASE + 21)
+#define VIVID_CID_STD_ASPECT_RATIO	(VIVID_CID_VIVID_BASE + 22)
+#define VIVID_CID_DV_TIMINGS_ASPECT_RATIO	(VIVID_CID_VIVID_BASE + 23)
+#define VIVID_CID_TSTAMP_SRC		(VIVID_CID_VIVID_BASE + 24)
+#define VIVID_CID_COLORSPACE		(VIVID_CID_VIVID_BASE + 25)
+#define VIVID_CID_XFER_FUNC		(VIVID_CID_VIVID_BASE + 26)
+#define VIVID_CID_YCBCR_ENC		(VIVID_CID_VIVID_BASE + 27)
+#define VIVID_CID_QUANTIZATION		(VIVID_CID_VIVID_BASE + 28)
+#define VIVID_CID_LIMITED_RGB_RANGE	(VIVID_CID_VIVID_BASE + 29)
+#define VIVID_CID_ALPHA_MODE		(VIVID_CID_VIVID_BASE + 30)
+#define VIVID_CID_HAS_CROP_CAP		(VIVID_CID_VIVID_BASE + 31)
+#define VIVID_CID_HAS_COMPOSE_CAP	(VIVID_CID_VIVID_BASE + 32)
+#define VIVID_CID_HAS_SCALER_CAP	(VIVID_CID_VIVID_BASE + 33)
+#define VIVID_CID_HAS_CROP_OUT		(VIVID_CID_VIVID_BASE + 34)
+#define VIVID_CID_HAS_COMPOSE_OUT	(VIVID_CID_VIVID_BASE + 35)
+#define VIVID_CID_HAS_SCALER_OUT	(VIVID_CID_VIVID_BASE + 36)
+#define VIVID_CID_SEQ_WRAP		(VIVID_CID_VIVID_BASE + 38)
+#define VIVID_CID_TIME_WRAP		(VIVID_CID_VIVID_BASE + 39)
+#define VIVID_CID_MAX_EDID_BLOCKS	(VIVID_CID_VIVID_BASE + 40)
+#define VIVID_CID_PERCENTAGE_FILL	(VIVID_CID_VIVID_BASE + 41)
+#define VIVID_CID_REDUCED_FPS		(VIVID_CID_VIVID_BASE + 42)
+#define VIVID_CID_HSV_ENC		(VIVID_CID_VIVID_BASE + 43)
+
+#define VIVID_CID_STD_SIGNAL_MODE	(VIVID_CID_VIVID_BASE + 60)
+#define VIVID_CID_STANDARD		(VIVID_CID_VIVID_BASE + 61)
+#define VIVID_CID_DV_TIMINGS_SIGNAL_MODE	(VIVID_CID_VIVID_BASE + 62)
+#define VIVID_CID_DV_TIMINGS		(VIVID_CID_VIVID_BASE + 63)
+#define VIVID_CID_PERC_DROPPED		(VIVID_CID_VIVID_BASE + 64)
+#define VIVID_CID_DISCONNECT		(VIVID_CID_VIVID_BASE + 65)
+#define VIVID_CID_DQBUF_ERROR		(VIVID_CID_VIVID_BASE + 66)
+#define VIVID_CID_QUEUE_SETUP_ERROR	(VIVID_CID_VIVID_BASE + 67)
+#define VIVID_CID_BUF_PREPARE_ERROR	(VIVID_CID_VIVID_BASE + 68)
+#define VIVID_CID_START_STR_ERROR	(VIVID_CID_VIVID_BASE + 69)
+#define VIVID_CID_QUEUE_ERROR		(VIVID_CID_VIVID_BASE + 70)
+#define VIVID_CID_CLEAR_FB		(VIVID_CID_VIVID_BASE + 71)
+#define VIVID_CID_REQ_VALIDATE_ERROR	(VIVID_CID_VIVID_BASE + 72)
+
+#define VIVID_CID_RADIO_SEEK_MODE	(VIVID_CID_VIVID_BASE + 90)
+#define VIVID_CID_RADIO_SEEK_PROG_LIM	(VIVID_CID_VIVID_BASE + 91)
+#define VIVID_CID_RADIO_RX_RDS_RBDS	(VIVID_CID_VIVID_BASE + 92)
+#define VIVID_CID_RADIO_RX_RDS_BLOCKIO	(VIVID_CID_VIVID_BASE + 93)
+
+#define VIVID_CID_RADIO_TX_RDS_BLOCKIO	(VIVID_CID_VIVID_BASE + 94)
+
+#define VIVID_CID_SDR_CAP_FM_DEVIATION	(VIVID_CID_VIVID_BASE + 110)
+
+#define VIVID_CID_META_CAP_GENERATE_PTS	(VIVID_CID_VIVID_BASE + 111)
+#define VIVID_CID_META_CAP_GENERATE_SCR	(VIVID_CID_VIVID_BASE + 112)
+
+/* HDMI inputs are in the range 0-14. The next available CID is VIVID_CID_VIVID_BASE + 128 */
+#define VIVID_CID_HDMI_IS_CONNECTED_TO_OUTPUT(input) (VIVID_CID_VIVID_BASE + 113 + (input))
+
+/* S-Video inputs are in the range 0-15. The next available CID is VIVID_CID_VIVID_BASE + 144 */
+#define VIVID_CID_SVID_IS_CONNECTED_TO_OUTPUT(input) (VIVID_CID_VIVID_BASE + 128 + (input))
+
+/* General User Controls */
+
+static void vivid_unregister_dev(bool valid, struct video_device *vdev)
+{
+	if (!valid)
+		return;
+	clear_bit(V4L2_FL_REGISTERED, &vdev->flags);
+	v4l2_event_wake_all(vdev);
+}
+
+static int vivid_user_gen_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_user_gen);
+
+	switch (ctrl->id) {
+	case VIVID_CID_DISCONNECT:
+		v4l2_info(&dev->v4l2_dev, "disconnect\n");
+		dev->disconnect_error = true;
+		vivid_unregister_dev(dev->has_vid_cap, &dev->vid_cap_dev);
+		vivid_unregister_dev(dev->has_vid_out, &dev->vid_out_dev);
+		vivid_unregister_dev(dev->has_vbi_cap, &dev->vbi_cap_dev);
+		vivid_unregister_dev(dev->has_vbi_out, &dev->vbi_out_dev);
+		vivid_unregister_dev(dev->has_radio_rx, &dev->radio_rx_dev);
+		vivid_unregister_dev(dev->has_radio_tx, &dev->radio_tx_dev);
+		vivid_unregister_dev(dev->has_sdr_cap, &dev->sdr_cap_dev);
+		vivid_unregister_dev(dev->has_meta_cap, &dev->meta_cap_dev);
+		vivid_unregister_dev(dev->has_meta_out, &dev->meta_out_dev);
+		vivid_unregister_dev(dev->has_touch_cap, &dev->touch_cap_dev);
+		break;
+	case VIVID_CID_BUTTON:
+		dev->button_pressed = 30;
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_user_gen_ctrl_ops = {
+	.s_ctrl = vivid_user_gen_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_button = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_BUTTON,
+	.name = "Button",
+	.type = V4L2_CTRL_TYPE_BUTTON,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_boolean = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_BOOLEAN,
+	.name = "Boolean",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.min = 0,
+	.max = 1,
+	.step = 1,
+	.def = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_int32 = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_INTEGER,
+	.name = "Integer 32 Bits",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.min = 0xffffffff80000000ULL,
+	.max = 0x7fffffff,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_int64 = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_INTEGER64,
+	.name = "Integer 64 Bits",
+	.type = V4L2_CTRL_TYPE_INTEGER64,
+	.min = 0x8000000000000000ULL,
+	.max = 0x7fffffffffffffffLL,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_u32_array = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_U32_ARRAY,
+	.name = "U32 1 Element Array",
+	.type = V4L2_CTRL_TYPE_U32,
+	.def = 0x18,
+	.min = 0x10,
+	.max = 0x20000,
+	.step = 1,
+	.dims = { 1 },
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_u32_dyn_array = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_U32_DYN_ARRAY,
+	.name = "U32 Dynamic Array",
+	.type = V4L2_CTRL_TYPE_U32,
+	.flags = V4L2_CTRL_FLAG_DYNAMIC_ARRAY,
+	.def = 50,
+	.min = 10,
+	.max = 90,
+	.step = 1,
+	.dims = { 100 },
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_u16_matrix = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_U16_MATRIX,
+	.name = "U16 8x16 Matrix",
+	.type = V4L2_CTRL_TYPE_U16,
+	.def = 0x18,
+	.min = 0x10,
+	.max = 0x2000,
+	.step = 1,
+	.dims = { 8, 16 },
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_u8_4d_array = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_U8_4D_ARRAY,
+	.name = "U8 2x3x4x5 Array",
+	.type = V4L2_CTRL_TYPE_U8,
+	.def = 0x18,
+	.min = 0x10,
+	.max = 0x20,
+	.step = 1,
+	.dims = { 2, 3, 4, 5 },
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_u8_pixel_array = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_U8_PIXEL_ARRAY,
+	.name = "U8 Pixel Array",
+	.type = V4L2_CTRL_TYPE_U8,
+	.def = 0x80,
+	.min = 0x00,
+	.max = 0xff,
+	.step = 1,
+	.dims = { DIV_ROUND_UP(360, PIXEL_ARRAY_DIV),
+		  DIV_ROUND_UP(640, PIXEL_ARRAY_DIV) },
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_s32_array = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_S32_ARRAY,
+	.name = "S32 2 Element Array",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.def = 2,
+	.min = -10,
+	.max = 10,
+	.step = 1,
+	.dims = { 2 },
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_s64_array = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_S64_ARRAY,
+	.name = "S64 5 Element Array",
+	.type = V4L2_CTRL_TYPE_INTEGER64,
+	.def = 4,
+	.min = -10,
+	.max = 10,
+	.step = 1,
+	.dims = { 5 },
+};
+
+static const char * const vivid_ctrl_menu_strings[] = {
+	"Menu Item 0 (Skipped)",
+	"Menu Item 1",
+	"Menu Item 2 (Skipped)",
+	"Menu Item 3",
+	"Menu Item 4",
+	"Menu Item 5 (Skipped)",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_menu = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_MENU,
+	.name = "Menu",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.min = 1,
+	.max = 4,
+	.def = 3,
+	.menu_skip_mask = 0x04,
+	.qmenu = vivid_ctrl_menu_strings,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_string = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_STRING,
+	.name = "String",
+	.type = V4L2_CTRL_TYPE_STRING,
+	.min = 2,
+	.max = 4,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_bitmask = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_BITMASK,
+	.name = "Bitmask",
+	.type = V4L2_CTRL_TYPE_BITMASK,
+	.def = 0x80002000,
+	.min = 0,
+	.max = 0x80402010,
+	.step = 0,
+};
+
+static const s64 vivid_ctrl_int_menu_values[] = {
+	1, 1, 2, 3, 5, 8, 13, 21, 42,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_int_menu = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_INTMENU,
+	.name = "Integer Menu",
+	.type = V4L2_CTRL_TYPE_INTEGER_MENU,
+	.min = 1,
+	.max = 8,
+	.def = 4,
+	.menu_skip_mask = 0x02,
+	.qmenu_int = vivid_ctrl_int_menu_values,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_disconnect = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_DISCONNECT,
+	.name = "Disconnect",
+	.type = V4L2_CTRL_TYPE_BUTTON,
+};
+
+static const struct v4l2_area area = {
+	.width = 1000,
+	.height = 2000,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_area = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_AREA,
+	.name = "Area",
+	.type = V4L2_CTRL_TYPE_AREA,
+	.p_def.p_const = &area,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_ro_int32 = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_RO_INTEGER,
+	.name = "Read-Only Integer 32 Bits",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.flags = V4L2_CTRL_FLAG_READ_ONLY,
+	.min = 0,
+	.max = 255,
+	.step = 1,
+};
+
+static const struct v4l2_rect rect_def = {
+	.top = 100,
+	.left = 200,
+	.width = 300,
+	.height = 400,
+};
+
+static const struct v4l2_rect rect_min = {
+	.top = 0,
+	.left = 0,
+	.width = 1,
+	.height = 1,
+};
+
+static const struct v4l2_rect rect_max = {
+	.top = 0,
+	.left = 0,
+	.width = 1000,
+	.height = 2000,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_rect = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_RECT,
+	.name = "Rect",
+	.type = V4L2_CTRL_TYPE_RECT,
+	.flags = V4L2_CTRL_FLAG_HAS_WHICH_MIN_MAX,
+	.p_def.p_const = &rect_def,
+	.p_min.p_const = &rect_min,
+	.p_max.p_const = &rect_max,
+};
+
+/* Framebuffer Controls */
+
+static int vivid_fb_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler,
+					     struct vivid_dev, ctrl_hdl_fb);
+
+	switch (ctrl->id) {
+	case VIVID_CID_CLEAR_FB:
+		vivid_fb_clear(dev);
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_fb_ctrl_ops = {
+	.s_ctrl = vivid_fb_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_clear_fb = {
+	.ops = &vivid_fb_ctrl_ops,
+	.id = VIVID_CID_CLEAR_FB,
+	.name = "Clear Framebuffer",
+	.type = V4L2_CTRL_TYPE_BUTTON,
+};
+
+
+/* Video User Controls */
+
+static int vivid_user_vid_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_user_vid);
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUTOGAIN:
+		dev->gain->val = (jiffies_to_msecs(jiffies) / 1000) & 0xff;
+		break;
+	}
+	return 0;
+}
+
+static int vivid_user_vid_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_user_vid);
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		dev->input_brightness[dev->input] = ctrl->val - dev->input * 128;
+		tpg_s_brightness(&dev->tpg, dev->input_brightness[dev->input]);
+		break;
+	case V4L2_CID_CONTRAST:
+		tpg_s_contrast(&dev->tpg, ctrl->val);
+		break;
+	case V4L2_CID_SATURATION:
+		tpg_s_saturation(&dev->tpg, ctrl->val);
+		break;
+	case V4L2_CID_HUE:
+		tpg_s_hue(&dev->tpg, ctrl->val);
+		break;
+	case V4L2_CID_HFLIP:
+		dev->hflip = ctrl->val;
+		tpg_s_hflip(&dev->tpg, dev->sensor_hflip ^ dev->hflip);
+		break;
+	case V4L2_CID_VFLIP:
+		dev->vflip = ctrl->val;
+		tpg_s_vflip(&dev->tpg, dev->sensor_vflip ^ dev->vflip);
+		break;
+	case V4L2_CID_ALPHA_COMPONENT:
+		tpg_s_alpha_component(&dev->tpg, ctrl->val);
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_user_vid_ctrl_ops = {
+	.g_volatile_ctrl = vivid_user_vid_g_volatile_ctrl,
+	.s_ctrl = vivid_user_vid_s_ctrl,
+};
+
+
+/* Video Capture Controls */
+
+static void vivid_update_power_present(struct vivid_dev *dev)
+{
+	unsigned int i, j;
+
+	dev->power_present = 0;
+	for (i = 0, j = 0;
+	     i < ARRAY_SIZE(dev->dv_timings_signal_mode); i++) {
+		if (dev->input_type[i] != HDMI)
+			continue;
+		/*
+		 * If connected to TPG or HDMI output, and the signal
+		 * mode is not NO_SIGNAL, then there is power present.
+		 */
+		if (dev->input_is_connected_to_output[i] != 1 &&
+		    dev->dv_timings_signal_mode[i] != NO_SIGNAL)
+			dev->power_present |= (1 << j);
+		j++;
+	}
+
+	__v4l2_ctrl_s_ctrl(dev->ctrl_rx_power_present,
+			   dev->power_present);
+
+	v4l2_ctrl_activate(dev->ctrl_dv_timings,
+			   dev->dv_timings_signal_mode[dev->input] ==
+			   SELECTED_DV_TIMINGS);
+}
+
+static int vivid_vid_cap_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	static const u32 colorspaces[] = {
+		V4L2_COLORSPACE_SMPTE170M,
+		V4L2_COLORSPACE_REC709,
+		V4L2_COLORSPACE_SRGB,
+		V4L2_COLORSPACE_OPRGB,
+		V4L2_COLORSPACE_BT2020,
+		V4L2_COLORSPACE_DCI_P3,
+		V4L2_COLORSPACE_SMPTE240M,
+		V4L2_COLORSPACE_470_SYSTEM_M,
+		V4L2_COLORSPACE_470_SYSTEM_BG,
+	};
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_vid_cap);
+	unsigned int i;
+	struct vivid_dev *output_inst = NULL;
+	int index = 0;
+	int hdmi_index, svid_index;
+	s32 input_index = 0;
+
+	switch (ctrl->id) {
+	case VIVID_CID_TEST_PATTERN:
+		vivid_update_quality(dev);
+		tpg_s_pattern(&dev->tpg, ctrl->val);
+		break;
+	case VIVID_CID_COLORSPACE:
+		tpg_s_colorspace(&dev->tpg, colorspaces[ctrl->val]);
+		vivid_send_source_change(dev, TV);
+		vivid_send_source_change(dev, SVID);
+		vivid_send_source_change(dev, HDMI);
+		vivid_send_source_change(dev, WEBCAM);
+		break;
+	case VIVID_CID_XFER_FUNC:
+		tpg_s_xfer_func(&dev->tpg, ctrl->val);
+		vivid_send_source_change(dev, TV);
+		vivid_send_source_change(dev, SVID);
+		vivid_send_source_change(dev, HDMI);
+		vivid_send_source_change(dev, WEBCAM);
+		break;
+	case VIVID_CID_YCBCR_ENC:
+		tpg_s_ycbcr_enc(&dev->tpg, ctrl->val);
+		vivid_send_source_change(dev, TV);
+		vivid_send_source_change(dev, SVID);
+		vivid_send_source_change(dev, HDMI);
+		vivid_send_source_change(dev, WEBCAM);
+		break;
+	case VIVID_CID_HSV_ENC:
+		tpg_s_hsv_enc(&dev->tpg, ctrl->val ? V4L2_HSV_ENC_256 :
+						     V4L2_HSV_ENC_180);
+		vivid_send_source_change(dev, TV);
+		vivid_send_source_change(dev, SVID);
+		vivid_send_source_change(dev, HDMI);
+		vivid_send_source_change(dev, WEBCAM);
+		break;
+	case VIVID_CID_QUANTIZATION:
+		tpg_s_quantization(&dev->tpg, ctrl->val);
+		vivid_send_source_change(dev, TV);
+		vivid_send_source_change(dev, SVID);
+		vivid_send_source_change(dev, HDMI);
+		vivid_send_source_change(dev, WEBCAM);
+		break;
+	case V4L2_CID_DV_RX_RGB_RANGE:
+		if (!vivid_is_hdmi_cap(dev))
+			break;
+		tpg_s_rgb_range(&dev->tpg, ctrl->val);
+		break;
+	case VIVID_CID_LIMITED_RGB_RANGE:
+		tpg_s_real_rgb_range(&dev->tpg, ctrl->val ?
+				V4L2_DV_RGB_RANGE_LIMITED : V4L2_DV_RGB_RANGE_FULL);
+		break;
+	case VIVID_CID_ALPHA_MODE:
+		tpg_s_alpha_mode(&dev->tpg, ctrl->val);
+		break;
+	case VIVID_CID_HOR_MOVEMENT:
+		tpg_s_mv_hor_mode(&dev->tpg, ctrl->val);
+		break;
+	case VIVID_CID_VERT_MOVEMENT:
+		tpg_s_mv_vert_mode(&dev->tpg, ctrl->val);
+		break;
+	case VIVID_CID_OSD_TEXT_MODE:
+		dev->osd_mode = ctrl->val;
+		break;
+	case VIVID_CID_PERCENTAGE_FILL:
+		tpg_s_perc_fill(&dev->tpg, ctrl->val);
+		for (i = 0; i < MAX_VID_CAP_BUFFERS; i++)
+			dev->must_blank[i] = ctrl->val < 100;
+		break;
+	case VIVID_CID_INSERT_SAV:
+		tpg_s_insert_sav(&dev->tpg, ctrl->val);
+		break;
+	case VIVID_CID_INSERT_EAV:
+		tpg_s_insert_eav(&dev->tpg, ctrl->val);
+		break;
+	case VIVID_CID_INSERT_HDMI_VIDEO_GUARD_BAND:
+		tpg_s_insert_hdmi_video_guard_band(&dev->tpg, ctrl->val);
+		break;
+	case VIVID_CID_HFLIP:
+		dev->sensor_hflip = ctrl->val;
+		tpg_s_hflip(&dev->tpg, dev->sensor_hflip ^ dev->hflip);
+		break;
+	case VIVID_CID_VFLIP:
+		dev->sensor_vflip = ctrl->val;
+		tpg_s_vflip(&dev->tpg, dev->sensor_vflip ^ dev->vflip);
+		break;
+	case VIVID_CID_REDUCED_FPS:
+		dev->reduced_fps = ctrl->val;
+		if (dev->input_type[dev->input] == HDMI)
+			vivid_update_reduced_fps(dev);
+		break;
+	case VIVID_CID_HAS_CROP_CAP:
+		if (vb2_is_busy(&dev->vb_vid_cap_q))
+			return -EBUSY;
+		dev->has_crop_cap = ctrl->val;
+		vivid_update_format_cap(dev, true);
+		break;
+	case VIVID_CID_HAS_COMPOSE_CAP:
+		if (vb2_is_busy(&dev->vb_vid_cap_q))
+			return -EBUSY;
+		dev->has_compose_cap = ctrl->val;
+		vivid_update_format_cap(dev, true);
+		break;
+	case VIVID_CID_HAS_SCALER_CAP:
+		if (vb2_is_busy(&dev->vb_vid_cap_q))
+			return -EBUSY;
+		dev->has_scaler_cap = ctrl->val;
+		vivid_update_format_cap(dev, true);
+		break;
+	case VIVID_CID_SHOW_BORDER:
+		tpg_s_show_border(&dev->tpg, ctrl->val);
+		break;
+	case VIVID_CID_SHOW_SQUARE:
+		tpg_s_show_square(&dev->tpg, ctrl->val);
+		break;
+	case VIVID_CID_STD_ASPECT_RATIO:
+		dev->std_aspect_ratio[dev->input] = ctrl->val;
+		tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
+		break;
+	case VIVID_CID_DV_TIMINGS_SIGNAL_MODE:
+		dev->dv_timings_signal_mode[dev->input] =
+			dev->ctrl_dv_timings_signal_mode->val;
+		dev->query_dv_timings[dev->input] = dev->ctrl_dv_timings->val;
+		vivid_update_power_present(dev);
+		vivid_update_quality(dev);
+		vivid_send_input_source_change(dev, dev->input);
+		break;
+	case VIVID_CID_DV_TIMINGS_ASPECT_RATIO:
+		dev->dv_timings_aspect_ratio[dev->input] = ctrl->val;
+		tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
+		break;
+	case VIVID_CID_TSTAMP_SRC:
+		dev->tstamp_src_is_soe = ctrl->val;
+		dev->vb_vid_cap_q.timestamp_flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
+		if (dev->tstamp_src_is_soe)
+			dev->vb_vid_cap_q.timestamp_flags |= V4L2_BUF_FLAG_TSTAMP_SRC_SOE;
+		break;
+	case VIVID_CID_MAX_EDID_BLOCKS:
+		dev->edid_max_blocks = ctrl->val;
+		if (dev->edid_blocks > dev->edid_max_blocks)
+			dev->edid_blocks = dev->edid_max_blocks;
+		break;
+	case VIVID_CID_HDMI_IS_CONNECTED_TO_OUTPUT(0) ... VIVID_CID_HDMI_IS_CONNECTED_TO_OUTPUT(14):
+		hdmi_index = ctrl->id - VIVID_CID_HDMI_IS_CONNECTED_TO_OUTPUT(0);
+		output_inst = vivid_ctrl_hdmi_to_output_instance[ctrl->cur.val];
+		index = vivid_ctrl_hdmi_to_output_index[ctrl->cur.val];
+		input_index = dev->hdmi_index_to_input_index[hdmi_index];
+		dev->input_is_connected_to_output[input_index] = ctrl->val;
+
+		if (output_inst) {
+			output_inst->output_to_input_instance[index] = NULL;
+			vivid_update_outputs(output_inst);
+			cec_phys_addr_invalidate(output_inst->cec_tx_adap[index]);
+		}
+		if (ctrl->val >= FIXED_MENU_ITEMS) {
+			output_inst = vivid_ctrl_hdmi_to_output_instance[ctrl->val];
+			index = vivid_ctrl_hdmi_to_output_index[ctrl->val];
+			output_inst->output_to_input_instance[index] = dev;
+			output_inst->output_to_input_index[index] =
+				dev->hdmi_index_to_input_index[hdmi_index];
+		}
+		spin_lock(&hdmi_output_skip_mask_lock);
+		hdmi_to_output_menu_skip_mask &= ~(1ULL << ctrl->cur.val);
+		if (ctrl->val >= FIXED_MENU_ITEMS)
+			hdmi_to_output_menu_skip_mask |= 1ULL << ctrl->val;
+		spin_unlock(&hdmi_output_skip_mask_lock);
+		vivid_update_power_present(dev);
+		vivid_update_quality(dev);
+		vivid_send_input_source_change(dev, dev->hdmi_index_to_input_index[hdmi_index]);
+		if (ctrl->val < FIXED_MENU_ITEMS && ctrl->cur.val < FIXED_MENU_ITEMS)
+			break;
+		spin_lock(&hdmi_output_skip_mask_lock);
+		hdmi_input_update_outputs_mask |= 1 << dev->inst;
+		spin_unlock(&hdmi_output_skip_mask_lock);
+		queue_work(update_hdmi_ctrls_workqueue, &dev->update_hdmi_ctrl_work);
+		break;
+	case VIVID_CID_SVID_IS_CONNECTED_TO_OUTPUT(0) ... VIVID_CID_SVID_IS_CONNECTED_TO_OUTPUT(15):
+		svid_index = ctrl->id - VIVID_CID_SVID_IS_CONNECTED_TO_OUTPUT(0);
+		output_inst = vivid_ctrl_svid_to_output_instance[ctrl->cur.val];
+		index = vivid_ctrl_svid_to_output_index[ctrl->cur.val];
+		input_index = dev->svid_index_to_input_index[svid_index];
+		dev->input_is_connected_to_output[input_index] = ctrl->val;
+
+		if (output_inst)
+			output_inst->output_to_input_instance[index] = NULL;
+		if (ctrl->val >= FIXED_MENU_ITEMS) {
+			output_inst = vivid_ctrl_svid_to_output_instance[ctrl->val];
+			index = vivid_ctrl_svid_to_output_index[ctrl->val];
+			output_inst->output_to_input_instance[index] = dev;
+			output_inst->output_to_input_index[index] =
+				dev->svid_index_to_input_index[svid_index];
+		}
+		spin_lock(&svid_output_skip_mask_lock);
+		svid_to_output_menu_skip_mask &= ~(1ULL << ctrl->cur.val);
+		if (ctrl->val >= FIXED_MENU_ITEMS)
+			svid_to_output_menu_skip_mask |= 1ULL << ctrl->val;
+		spin_unlock(&svid_output_skip_mask_lock);
+		vivid_update_quality(dev);
+		vivid_send_input_source_change(dev, dev->svid_index_to_input_index[svid_index]);
+		if (ctrl->val < FIXED_MENU_ITEMS && ctrl->cur.val < FIXED_MENU_ITEMS)
+			break;
+		queue_work(update_svid_ctrls_workqueue, &dev->update_svid_ctrl_work);
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_vid_cap_ctrl_ops = {
+	.s_ctrl = vivid_vid_cap_s_ctrl,
+};
+
+static const char * const vivid_ctrl_hor_movement_strings[] = {
+	"Move Left Fast",
+	"Move Left",
+	"Move Left Slow",
+	"No Movement",
+	"Move Right Slow",
+	"Move Right",
+	"Move Right Fast",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_hor_movement = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_HOR_MOVEMENT,
+	.name = "Horizontal Movement",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = TPG_MOVE_POS_FAST,
+	.def = TPG_MOVE_NONE,
+	.qmenu = vivid_ctrl_hor_movement_strings,
+};
+
+static const char * const vivid_ctrl_vert_movement_strings[] = {
+	"Move Up Fast",
+	"Move Up",
+	"Move Up Slow",
+	"No Movement",
+	"Move Down Slow",
+	"Move Down",
+	"Move Down Fast",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_vert_movement = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_VERT_MOVEMENT,
+	.name = "Vertical Movement",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = TPG_MOVE_POS_FAST,
+	.def = TPG_MOVE_NONE,
+	.qmenu = vivid_ctrl_vert_movement_strings,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_show_border = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_SHOW_BORDER,
+	.name = "Show Border",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_show_square = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_SHOW_SQUARE,
+	.name = "Show Square",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const char * const vivid_ctrl_osd_mode_strings[] = {
+	"All",
+	"Counters Only",
+	"None",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_osd_mode = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_OSD_TEXT_MODE,
+	.name = "OSD Text Mode",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = ARRAY_SIZE(vivid_ctrl_osd_mode_strings) - 2,
+	.qmenu = vivid_ctrl_osd_mode_strings,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_perc_fill = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_PERCENTAGE_FILL,
+	.name = "Fill Percentage of Frame",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.min = 0,
+	.max = 100,
+	.def = 100,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_insert_sav = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_INSERT_SAV,
+	.name = "Insert SAV Code in Image",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_insert_eav = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_INSERT_EAV,
+	.name = "Insert EAV Code in Image",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_insert_hdmi_video_guard_band = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_INSERT_HDMI_VIDEO_GUARD_BAND,
+	.name = "Insert Video Guard Band",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_hflip = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_HFLIP,
+	.name = "Sensor Flipped Horizontally",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_vflip = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_VFLIP,
+	.name = "Sensor Flipped Vertically",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_reduced_fps = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_REDUCED_FPS,
+	.name = "Reduced Framerate",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_has_crop_cap = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_HAS_CROP_CAP,
+	.name = "Enable Capture Cropping",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.def = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_has_compose_cap = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_HAS_COMPOSE_CAP,
+	.name = "Enable Capture Composing",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.def = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_has_scaler_cap = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_HAS_SCALER_CAP,
+	.name = "Enable Capture Scaler",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.def = 1,
+	.step = 1,
+};
+
+static const char * const vivid_ctrl_tstamp_src_strings[] = {
+	"End of Frame",
+	"Start of Exposure",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_tstamp_src = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_TSTAMP_SRC,
+	.name = "Timestamp Source",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = ARRAY_SIZE(vivid_ctrl_tstamp_src_strings) - 2,
+	.qmenu = vivid_ctrl_tstamp_src_strings,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_std_aspect_ratio = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_STD_ASPECT_RATIO,
+	.name = "Standard Aspect Ratio",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.min = 1,
+	.max = 4,
+	.def = 1,
+	.qmenu = tpg_aspect_strings,
+};
+
+static const char * const vivid_ctrl_dv_timings_signal_mode_strings[] = {
+	"Current DV Timings",
+	"No Signal",
+	"No Lock",
+	"Out of Range",
+	"Selected DV Timings",
+	"Cycle Through All DV Timings",
+	"Custom DV Timings",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_dv_timings_signal_mode = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_DV_TIMINGS_SIGNAL_MODE,
+	.name = "DV Timings Signal Mode",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = 5,
+	.qmenu = vivid_ctrl_dv_timings_signal_mode_strings,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_dv_timings_aspect_ratio = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_DV_TIMINGS_ASPECT_RATIO,
+	.name = "DV Timings Aspect Ratio",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = 3,
+	.qmenu = tpg_aspect_strings,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_max_edid_blocks = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_MAX_EDID_BLOCKS,
+	.name = "Maximum EDID Blocks",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.min = 1,
+	.max = 256,
+	.def = 2,
+	.step = 1,
+};
+
+static const char * const vivid_ctrl_colorspace_strings[] = {
+	"SMPTE 170M",
+	"Rec. 709",
+	"sRGB",
+	"opRGB",
+	"BT.2020",
+	"DCI-P3",
+	"SMPTE 240M",
+	"470 System M",
+	"470 System BG",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_colorspace = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_COLORSPACE,
+	.name = "Colorspace",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = ARRAY_SIZE(vivid_ctrl_colorspace_strings) - 2,
+	.def = 2,
+	.qmenu = vivid_ctrl_colorspace_strings,
+};
+
+static const char * const vivid_ctrl_xfer_func_strings[] = {
+	"Default",
+	"Rec. 709",
+	"sRGB",
+	"opRGB",
+	"SMPTE 240M",
+	"None",
+	"DCI-P3",
+	"SMPTE 2084",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_xfer_func = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_XFER_FUNC,
+	.name = "Transfer Function",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = ARRAY_SIZE(vivid_ctrl_xfer_func_strings) - 2,
+	.qmenu = vivid_ctrl_xfer_func_strings,
+};
+
+static const char * const vivid_ctrl_ycbcr_enc_strings[] = {
+	"Default",
+	"ITU-R 601",
+	"Rec. 709",
+	"xvYCC 601",
+	"xvYCC 709",
+	"",
+	"BT.2020",
+	"BT.2020 Constant Luminance",
+	"SMPTE 240M",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_ycbcr_enc = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_YCBCR_ENC,
+	.name = "Y'CbCr Encoding",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.menu_skip_mask = 1 << 5,
+	.max = ARRAY_SIZE(vivid_ctrl_ycbcr_enc_strings) - 2,
+	.qmenu = vivid_ctrl_ycbcr_enc_strings,
+};
+
+static const char * const vivid_ctrl_hsv_enc_strings[] = {
+	"Hue 0-179",
+	"Hue 0-256",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_hsv_enc = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_HSV_ENC,
+	.name = "HSV Encoding",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = ARRAY_SIZE(vivid_ctrl_hsv_enc_strings) - 2,
+	.qmenu = vivid_ctrl_hsv_enc_strings,
+};
+
+static const char * const vivid_ctrl_quantization_strings[] = {
+	"Default",
+	"Full Range",
+	"Limited Range",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_quantization = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_QUANTIZATION,
+	.name = "Quantization",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = ARRAY_SIZE(vivid_ctrl_quantization_strings) - 2,
+	.qmenu = vivid_ctrl_quantization_strings,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_alpha_mode = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_ALPHA_MODE,
+	.name = "Apply Alpha To Red Only",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_limited_rgb_range = {
+	.ops = &vivid_vid_cap_ctrl_ops,
+	.id = VIVID_CID_LIMITED_RGB_RANGE,
+	.name = "Limited RGB Range (16-235)",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+
+/* VBI Capture Control */
+
+static int vivid_vbi_cap_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_vbi_cap);
+
+	switch (ctrl->id) {
+	case VIVID_CID_VBI_CAP_INTERLACED:
+		dev->vbi_cap_interlaced = ctrl->val;
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_vbi_cap_ctrl_ops = {
+	.s_ctrl = vivid_vbi_cap_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_vbi_cap_interlaced = {
+	.ops = &vivid_vbi_cap_ctrl_ops,
+	.id = VIVID_CID_VBI_CAP_INTERLACED,
+	.name = "Interlaced VBI Format",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+
+/* Video Output Controls */
+
+static int vivid_vid_out_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_vid_out);
+	struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt;
+
+	switch (ctrl->id) {
+	case VIVID_CID_HAS_CROP_OUT:
+		if (vb2_is_busy(&dev->vb_vid_out_q))
+			return -EBUSY;
+		dev->has_crop_out = ctrl->val;
+		vivid_update_format_out(dev);
+		break;
+	case VIVID_CID_HAS_COMPOSE_OUT:
+		if (vb2_is_busy(&dev->vb_vid_out_q))
+			return -EBUSY;
+		dev->has_compose_out = ctrl->val;
+		vivid_update_format_out(dev);
+		break;
+	case VIVID_CID_HAS_SCALER_OUT:
+		if (vb2_is_busy(&dev->vb_vid_out_q))
+			return -EBUSY;
+		dev->has_scaler_out = ctrl->val;
+		vivid_update_format_out(dev);
+		break;
+	case V4L2_CID_DV_TX_MODE:
+		dev->dvi_d_out = ctrl->val == V4L2_DV_TX_MODE_DVI_D;
+		if (!vivid_is_hdmi_out(dev))
+			break;
+		if (!dev->dvi_d_out && (bt->flags & V4L2_DV_FL_IS_CE_VIDEO)) {
+			if (bt->width == 720 && bt->height <= 576)
+				dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M;
+			else
+				dev->colorspace_out = V4L2_COLORSPACE_REC709;
+			dev->quantization_out = V4L2_QUANTIZATION_DEFAULT;
+		} else {
+			dev->colorspace_out = V4L2_COLORSPACE_SRGB;
+			dev->quantization_out = dev->dvi_d_out ?
+					V4L2_QUANTIZATION_LIM_RANGE :
+					V4L2_QUANTIZATION_DEFAULT;
+		}
+		if (vivid_output_is_connected_to(dev)) {
+			struct vivid_dev *dev_rx = vivid_output_is_connected_to(dev);
+
+			vivid_send_source_change(dev_rx, HDMI);
+		}
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_vid_out_ctrl_ops = {
+	.s_ctrl = vivid_vid_out_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_has_crop_out = {
+	.ops = &vivid_vid_out_ctrl_ops,
+	.id = VIVID_CID_HAS_CROP_OUT,
+	.name = "Enable Output Cropping",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.def = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_has_compose_out = {
+	.ops = &vivid_vid_out_ctrl_ops,
+	.id = VIVID_CID_HAS_COMPOSE_OUT,
+	.name = "Enable Output Composing",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.def = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_has_scaler_out = {
+	.ops = &vivid_vid_out_ctrl_ops,
+	.id = VIVID_CID_HAS_SCALER_OUT,
+	.name = "Enable Output Scaler",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.def = 1,
+	.step = 1,
+};
+
+/* Streaming Controls */
+
+static int vivid_streaming_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_streaming);
+
+	switch (ctrl->id) {
+	case VIVID_CID_DQBUF_ERROR:
+		dev->dqbuf_error = true;
+		break;
+	case VIVID_CID_PERC_DROPPED:
+		dev->perc_dropped_buffers = ctrl->val;
+		break;
+	case VIVID_CID_QUEUE_SETUP_ERROR:
+		dev->queue_setup_error = true;
+		break;
+	case VIVID_CID_BUF_PREPARE_ERROR:
+		dev->buf_prepare_error = true;
+		break;
+	case VIVID_CID_START_STR_ERROR:
+		dev->start_streaming_error = true;
+		break;
+	case VIVID_CID_REQ_VALIDATE_ERROR:
+		dev->req_validate_error = true;
+		break;
+	case VIVID_CID_QUEUE_ERROR:
+		if (vb2_start_streaming_called(&dev->vb_vid_cap_q))
+			vb2_queue_error(&dev->vb_vid_cap_q);
+		if (vb2_start_streaming_called(&dev->vb_vbi_cap_q))
+			vb2_queue_error(&dev->vb_vbi_cap_q);
+		if (vb2_start_streaming_called(&dev->vb_vid_out_q))
+			vb2_queue_error(&dev->vb_vid_out_q);
+		if (vb2_start_streaming_called(&dev->vb_vbi_out_q))
+			vb2_queue_error(&dev->vb_vbi_out_q);
+		if (vb2_start_streaming_called(&dev->vb_sdr_cap_q))
+			vb2_queue_error(&dev->vb_sdr_cap_q);
+		break;
+	case VIVID_CID_SEQ_WRAP:
+		dev->seq_wrap = ctrl->val;
+		break;
+	case VIVID_CID_TIME_WRAP:
+		dev->time_wrap = ctrl->val;
+		if (dev->time_wrap == 1)
+			dev->time_wrap = (1ULL << 63) - NSEC_PER_SEC * 16ULL;
+		else if (dev->time_wrap == 2)
+			dev->time_wrap = ((1ULL << 31) - 16) * NSEC_PER_SEC;
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_streaming_ctrl_ops = {
+	.s_ctrl = vivid_streaming_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_dqbuf_error = {
+	.ops = &vivid_streaming_ctrl_ops,
+	.id = VIVID_CID_DQBUF_ERROR,
+	.name = "Inject V4L2_BUF_FLAG_ERROR",
+	.type = V4L2_CTRL_TYPE_BUTTON,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_perc_dropped = {
+	.ops = &vivid_streaming_ctrl_ops,
+	.id = VIVID_CID_PERC_DROPPED,
+	.name = "Percentage of Dropped Buffers",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.min = 0,
+	.max = 100,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_queue_setup_error = {
+	.ops = &vivid_streaming_ctrl_ops,
+	.id = VIVID_CID_QUEUE_SETUP_ERROR,
+	.name = "Inject VIDIOC_REQBUFS Error",
+	.type = V4L2_CTRL_TYPE_BUTTON,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_buf_prepare_error = {
+	.ops = &vivid_streaming_ctrl_ops,
+	.id = VIVID_CID_BUF_PREPARE_ERROR,
+	.name = "Inject VIDIOC_QBUF Error",
+	.type = V4L2_CTRL_TYPE_BUTTON,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_start_streaming_error = {
+	.ops = &vivid_streaming_ctrl_ops,
+	.id = VIVID_CID_START_STR_ERROR,
+	.name = "Inject VIDIOC_STREAMON Error",
+	.type = V4L2_CTRL_TYPE_BUTTON,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_queue_error = {
+	.ops = &vivid_streaming_ctrl_ops,
+	.id = VIVID_CID_QUEUE_ERROR,
+	.name = "Inject Fatal Streaming Error",
+	.type = V4L2_CTRL_TYPE_BUTTON,
+};
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+static const struct v4l2_ctrl_config vivid_ctrl_req_validate_error = {
+	.ops = &vivid_streaming_ctrl_ops,
+	.id = VIVID_CID_REQ_VALIDATE_ERROR,
+	.name = "Inject req_validate() Error",
+	.type = V4L2_CTRL_TYPE_BUTTON,
+};
+#endif
+
+static const struct v4l2_ctrl_config vivid_ctrl_seq_wrap = {
+	.ops = &vivid_streaming_ctrl_ops,
+	.id = VIVID_CID_SEQ_WRAP,
+	.name = "Wrap Sequence Number",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const char * const vivid_ctrl_time_wrap_strings[] = {
+	"None",
+	"64 Bit",
+	"32 Bit",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_time_wrap = {
+	.ops = &vivid_streaming_ctrl_ops,
+	.id = VIVID_CID_TIME_WRAP,
+	.name = "Wrap Timestamp",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = ARRAY_SIZE(vivid_ctrl_time_wrap_strings) - 2,
+	.qmenu = vivid_ctrl_time_wrap_strings,
+};
+
+
+/* SDTV Capture Controls */
+
+static int vivid_sdtv_cap_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_sdtv_cap);
+
+	switch (ctrl->id) {
+	case VIVID_CID_STD_SIGNAL_MODE:
+		dev->std_signal_mode[dev->input] =
+			dev->ctrl_std_signal_mode->val;
+		if (dev->std_signal_mode[dev->input] == SELECTED_STD)
+			dev->query_std[dev->input] =
+				vivid_standard[dev->ctrl_standard->val];
+		v4l2_ctrl_activate(dev->ctrl_standard,
+				   dev->std_signal_mode[dev->input] ==
+					SELECTED_STD);
+		vivid_update_quality(dev);
+		vivid_send_source_change(dev, TV);
+		vivid_send_source_change(dev, SVID);
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_sdtv_cap_ctrl_ops = {
+	.s_ctrl = vivid_sdtv_cap_s_ctrl,
+};
+
+static const char * const vivid_ctrl_std_signal_mode_strings[] = {
+	"Current Standard",
+	"No Signal",
+	"No Lock",
+	"",
+	"Selected Standard",
+	"Cycle Through All Standards",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_std_signal_mode = {
+	.ops = &vivid_sdtv_cap_ctrl_ops,
+	.id = VIVID_CID_STD_SIGNAL_MODE,
+	.name = "Standard Signal Mode",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = ARRAY_SIZE(vivid_ctrl_std_signal_mode_strings) - 2,
+	.menu_skip_mask = 1 << 3,
+	.qmenu = vivid_ctrl_std_signal_mode_strings,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_standard = {
+	.ops = &vivid_sdtv_cap_ctrl_ops,
+	.id = VIVID_CID_STANDARD,
+	.name = "Standard",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = 14,
+	.qmenu = vivid_ctrl_standard_strings,
+};
+
+
+
+/* Radio Receiver Controls */
+
+static int vivid_radio_rx_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_radio_rx);
+
+	switch (ctrl->id) {
+	case VIVID_CID_RADIO_SEEK_MODE:
+		dev->radio_rx_hw_seek_mode = ctrl->val;
+		break;
+	case VIVID_CID_RADIO_SEEK_PROG_LIM:
+		dev->radio_rx_hw_seek_prog_lim = ctrl->val;
+		break;
+	case VIVID_CID_RADIO_RX_RDS_RBDS:
+		dev->rds_gen.use_rbds = ctrl->val;
+		break;
+	case VIVID_CID_RADIO_RX_RDS_BLOCKIO:
+		dev->radio_rx_rds_controls = ctrl->val;
+		dev->radio_rx_caps &= ~V4L2_CAP_READWRITE;
+		dev->radio_rx_rds_use_alternates = false;
+		if (!dev->radio_rx_rds_controls) {
+			dev->radio_rx_caps |= V4L2_CAP_READWRITE;
+			__v4l2_ctrl_s_ctrl(dev->radio_rx_rds_pty, 0);
+			__v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ta, 0);
+			__v4l2_ctrl_s_ctrl(dev->radio_rx_rds_tp, 0);
+			__v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ms, 0);
+			__v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_psname, "");
+			__v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_radiotext, "");
+		}
+		v4l2_ctrl_activate(dev->radio_rx_rds_pty, dev->radio_rx_rds_controls);
+		v4l2_ctrl_activate(dev->radio_rx_rds_psname, dev->radio_rx_rds_controls);
+		v4l2_ctrl_activate(dev->radio_rx_rds_radiotext, dev->radio_rx_rds_controls);
+		v4l2_ctrl_activate(dev->radio_rx_rds_ta, dev->radio_rx_rds_controls);
+		v4l2_ctrl_activate(dev->radio_rx_rds_tp, dev->radio_rx_rds_controls);
+		v4l2_ctrl_activate(dev->radio_rx_rds_ms, dev->radio_rx_rds_controls);
+		dev->radio_rx_dev.device_caps = dev->radio_rx_caps;
+		break;
+	case V4L2_CID_RDS_RECEPTION:
+		dev->radio_rx_rds_enabled = ctrl->val;
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_radio_rx_ctrl_ops = {
+	.s_ctrl = vivid_radio_rx_s_ctrl,
+};
+
+static const char * const vivid_ctrl_radio_rds_mode_strings[] = {
+	"Block I/O",
+	"Controls",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_radio_rx_rds_blockio = {
+	.ops = &vivid_radio_rx_ctrl_ops,
+	.id = VIVID_CID_RADIO_RX_RDS_BLOCKIO,
+	.name = "RDS Rx I/O Mode",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.qmenu = vivid_ctrl_radio_rds_mode_strings,
+	.max = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_radio_rx_rds_rbds = {
+	.ops = &vivid_radio_rx_ctrl_ops,
+	.id = VIVID_CID_RADIO_RX_RDS_RBDS,
+	.name = "Generate RBDS Instead of RDS",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+static const char * const vivid_ctrl_radio_hw_seek_mode_strings[] = {
+	"Bounded",
+	"Wrap Around",
+	"Both",
+	NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_radio_hw_seek_mode = {
+	.ops = &vivid_radio_rx_ctrl_ops,
+	.id = VIVID_CID_RADIO_SEEK_MODE,
+	.name = "Radio HW Seek Mode",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.max = 2,
+	.qmenu = vivid_ctrl_radio_hw_seek_mode_strings,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_radio_hw_seek_prog_lim = {
+	.ops = &vivid_radio_rx_ctrl_ops,
+	.id = VIVID_CID_RADIO_SEEK_PROG_LIM,
+	.name = "Radio Programmable HW Seek",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.step = 1,
+};
+
+
+/* Radio Transmitter Controls */
+
+static int vivid_radio_tx_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_radio_tx);
+
+	switch (ctrl->id) {
+	case VIVID_CID_RADIO_TX_RDS_BLOCKIO:
+		dev->radio_tx_rds_controls = ctrl->val;
+		dev->radio_tx_caps &= ~V4L2_CAP_READWRITE;
+		if (!dev->radio_tx_rds_controls)
+			dev->radio_tx_caps |= V4L2_CAP_READWRITE;
+		dev->radio_tx_dev.device_caps = dev->radio_tx_caps;
+		break;
+	case V4L2_CID_RDS_TX_PTY:
+		if (dev->radio_rx_rds_controls)
+			v4l2_ctrl_s_ctrl(dev->radio_rx_rds_pty, ctrl->val);
+		break;
+	case V4L2_CID_RDS_TX_PS_NAME:
+		if (dev->radio_rx_rds_controls)
+			v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_psname, ctrl->p_new.p_char);
+		break;
+	case V4L2_CID_RDS_TX_RADIO_TEXT:
+		if (dev->radio_rx_rds_controls)
+			v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_radiotext, ctrl->p_new.p_char);
+		break;
+	case V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT:
+		if (dev->radio_rx_rds_controls)
+			v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ta, ctrl->val);
+		break;
+	case V4L2_CID_RDS_TX_TRAFFIC_PROGRAM:
+		if (dev->radio_rx_rds_controls)
+			v4l2_ctrl_s_ctrl(dev->radio_rx_rds_tp, ctrl->val);
+		break;
+	case V4L2_CID_RDS_TX_MUSIC_SPEECH:
+		if (dev->radio_rx_rds_controls)
+			v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ms, ctrl->val);
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_radio_tx_ctrl_ops = {
+	.s_ctrl = vivid_radio_tx_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_radio_tx_rds_blockio = {
+	.ops = &vivid_radio_tx_ctrl_ops,
+	.id = VIVID_CID_RADIO_TX_RDS_BLOCKIO,
+	.name = "RDS Tx I/O Mode",
+	.type = V4L2_CTRL_TYPE_MENU,
+	.qmenu = vivid_ctrl_radio_rds_mode_strings,
+	.max = 1,
+	.def = 1,
+};
+
+
+/* SDR Capture Controls */
+
+static int vivid_sdr_cap_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_sdr_cap);
+
+	switch (ctrl->id) {
+	case VIVID_CID_SDR_CAP_FM_DEVIATION:
+		dev->sdr_fm_deviation = ctrl->val;
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_sdr_cap_ctrl_ops = {
+	.s_ctrl = vivid_sdr_cap_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_sdr_cap_fm_deviation = {
+	.ops = &vivid_sdr_cap_ctrl_ops,
+	.id = VIVID_CID_SDR_CAP_FM_DEVIATION,
+	.name = "FM Deviation",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.min =    100,
+	.max = 200000,
+	.def =  75000,
+	.step =     1,
+};
+
+/* Metadata Capture Control */
+
+static int vivid_meta_cap_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev,
+					     ctrl_hdl_meta_cap);
+
+	switch (ctrl->id) {
+	case VIVID_CID_META_CAP_GENERATE_PTS:
+		dev->meta_pts = ctrl->val;
+		break;
+	case VIVID_CID_META_CAP_GENERATE_SCR:
+		dev->meta_scr = ctrl->val;
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vivid_meta_cap_ctrl_ops = {
+	.s_ctrl = vivid_meta_cap_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_meta_has_pts = {
+	.ops = &vivid_meta_cap_ctrl_ops,
+	.id = VIVID_CID_META_CAP_GENERATE_PTS,
+	.name = "Generate PTS",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.def = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_meta_has_src_clk = {
+	.ops = &vivid_meta_cap_ctrl_ops,
+	.id = VIVID_CID_META_CAP_GENERATE_SCR,
+	.name = "Generate SCR",
+	.type = V4L2_CTRL_TYPE_BOOLEAN,
+	.max = 1,
+	.def = 1,
+	.step = 1,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_class = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY,
+	.id = VIVID_CID_VIVID_CLASS,
+	.name = "Vivid Controls",
+	.type = V4L2_CTRL_TYPE_CTRL_CLASS,
+};
+
+int vivid_create_controls(struct vivid_dev *dev, bool show_ccs_cap,
+		bool show_ccs_out, bool no_error_inj,
+		bool has_sdtv, bool has_hdmi)
+{
+	struct v4l2_ctrl_handler *hdl_user_gen = &dev->ctrl_hdl_user_gen;
+	struct v4l2_ctrl_handler *hdl_user_vid = &dev->ctrl_hdl_user_vid;
+	struct v4l2_ctrl_handler *hdl_user_aud = &dev->ctrl_hdl_user_aud;
+	struct v4l2_ctrl_handler *hdl_streaming = &dev->ctrl_hdl_streaming;
+	struct v4l2_ctrl_handler *hdl_sdtv_cap = &dev->ctrl_hdl_sdtv_cap;
+	struct v4l2_ctrl_handler *hdl_loop_cap = &dev->ctrl_hdl_loop_cap;
+	struct v4l2_ctrl_handler *hdl_fb = &dev->ctrl_hdl_fb;
+	struct v4l2_ctrl_handler *hdl_vid_cap = &dev->ctrl_hdl_vid_cap;
+	struct v4l2_ctrl_handler *hdl_vid_out = &dev->ctrl_hdl_vid_out;
+	struct v4l2_ctrl_handler *hdl_vbi_cap = &dev->ctrl_hdl_vbi_cap;
+	struct v4l2_ctrl_handler *hdl_vbi_out = &dev->ctrl_hdl_vbi_out;
+	struct v4l2_ctrl_handler *hdl_radio_rx = &dev->ctrl_hdl_radio_rx;
+	struct v4l2_ctrl_handler *hdl_radio_tx = &dev->ctrl_hdl_radio_tx;
+	struct v4l2_ctrl_handler *hdl_sdr_cap = &dev->ctrl_hdl_sdr_cap;
+	struct v4l2_ctrl_handler *hdl_meta_cap = &dev->ctrl_hdl_meta_cap;
+	struct v4l2_ctrl_handler *hdl_meta_out = &dev->ctrl_hdl_meta_out;
+	struct v4l2_ctrl_handler *hdl_tch_cap = &dev->ctrl_hdl_touch_cap;
+
+	struct v4l2_ctrl_config vivid_ctrl_dv_timings = {
+		.ops = &vivid_vid_cap_ctrl_ops,
+		.id = VIVID_CID_DV_TIMINGS,
+		.name = "DV Timings",
+		.type = V4L2_CTRL_TYPE_MENU,
+	};
+	int i;
+
+	v4l2_ctrl_handler_init(hdl_user_gen, 10);
+	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_user_vid, 9);
+	v4l2_ctrl_new_custom(hdl_user_vid, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_user_aud, 2);
+	v4l2_ctrl_new_custom(hdl_user_aud, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_streaming, 8);
+	v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_sdtv_cap, 2);
+	v4l2_ctrl_new_custom(hdl_sdtv_cap, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_loop_cap, 1);
+	v4l2_ctrl_new_custom(hdl_loop_cap, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_fb, 1);
+	v4l2_ctrl_new_custom(hdl_fb, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_vid_cap, 55);
+	v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_vid_out, 26);
+	if (!no_error_inj || dev->has_fb || dev->num_hdmi_outputs)
+		v4l2_ctrl_new_custom(hdl_vid_out, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_vbi_cap, 21);
+	v4l2_ctrl_new_custom(hdl_vbi_cap, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_vbi_out, 19);
+	if (!no_error_inj)
+		v4l2_ctrl_new_custom(hdl_vbi_out, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_radio_rx, 17);
+	v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_radio_tx, 17);
+	v4l2_ctrl_new_custom(hdl_radio_tx, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_sdr_cap, 19);
+	v4l2_ctrl_new_custom(hdl_sdr_cap, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_meta_cap, 2);
+	v4l2_ctrl_new_custom(hdl_meta_cap, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_meta_out, 2);
+	v4l2_ctrl_new_custom(hdl_meta_out, &vivid_ctrl_class, NULL);
+	v4l2_ctrl_handler_init(hdl_tch_cap, 2);
+	v4l2_ctrl_new_custom(hdl_tch_cap, &vivid_ctrl_class, NULL);
+
+	/* User Controls */
+	dev->volume = v4l2_ctrl_new_std(hdl_user_aud, NULL,
+		V4L2_CID_AUDIO_VOLUME, 0, 255, 1, 200);
+	dev->mute = v4l2_ctrl_new_std(hdl_user_aud, NULL,
+		V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
+	if (dev->has_vid_cap) {
+		dev->brightness = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops,
+			V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
+		for (i = 0; i < MAX_INPUTS; i++)
+			dev->input_brightness[i] = 128;
+		dev->contrast = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops,
+			V4L2_CID_CONTRAST, 0, 255, 1, 128);
+		dev->saturation = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops,
+			V4L2_CID_SATURATION, 0, 255, 1, 128);
+		dev->hue = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops,
+			V4L2_CID_HUE, -128, 128, 1, 0);
+		v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops,
+			V4L2_CID_HFLIP, 0, 1, 1, 0);
+		v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops,
+			V4L2_CID_VFLIP, 0, 1, 1, 0);
+		dev->autogain = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops,
+			V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+		dev->gain = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops,
+			V4L2_CID_GAIN, 0, 255, 1, 100);
+		dev->alpha = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops,
+			V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 0);
+	}
+	dev->button = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_button, NULL);
+	dev->int32 = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_int32, NULL);
+	dev->int64 = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_int64, NULL);
+	dev->boolean = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_boolean, NULL);
+	dev->menu = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_menu, NULL);
+	dev->string = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_string, NULL);
+	dev->bitmask = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_bitmask, NULL);
+	dev->int_menu = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_int_menu, NULL);
+	dev->ro_int32 = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_ro_int32, NULL);
+	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_area, NULL);
+	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_rect, NULL);
+	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u32_array, NULL);
+	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u32_dyn_array, NULL);
+	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u16_matrix, NULL);
+	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u8_4d_array, NULL);
+	dev->pixel_array = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u8_pixel_array, NULL);
+	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_s32_array, NULL);
+	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_s64_array, NULL);
+
+	if (dev->has_vid_cap) {
+		/* Image Processing Controls */
+		struct v4l2_ctrl_config vivid_ctrl_test_pattern = {
+			.ops = &vivid_vid_cap_ctrl_ops,
+			.id = VIVID_CID_TEST_PATTERN,
+			.name = "Test Pattern",
+			.type = V4L2_CTRL_TYPE_MENU,
+			.max = TPG_PAT_NOISE,
+			.qmenu = tpg_pattern_strings,
+		};
+
+		dev->test_pattern = v4l2_ctrl_new_custom(hdl_vid_cap,
+				&vivid_ctrl_test_pattern, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_perc_fill, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_hor_movement, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_vert_movement, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_osd_mode, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_show_border, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_show_square, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_hflip, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_vflip, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_insert_sav, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_insert_eav, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_insert_hdmi_video_guard_band, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_reduced_fps, NULL);
+
+		WARN_ON(dev->num_hdmi_inputs > MAX_HDMI_INPUTS);
+		WARN_ON(dev->num_svid_inputs > MAX_SVID_INPUTS);
+
+		for (u8 i = 0; i < dev->num_hdmi_inputs; i++) {
+			snprintf(dev->ctrl_hdmi_to_output_names[i],
+				 sizeof(dev->ctrl_hdmi_to_output_names[i]),
+				 "HDMI %03u-%u Is Connected To", dev->inst, i);
+		}
+
+		for (u8 i = 0; i < dev->num_hdmi_inputs; i++) {
+			struct v4l2_ctrl_config ctrl_config = {
+				.ops = &vivid_vid_cap_ctrl_ops,
+				.id = VIVID_CID_HDMI_IS_CONNECTED_TO_OUTPUT(i),
+				.name = dev->ctrl_hdmi_to_output_names[i],
+				.type = V4L2_CTRL_TYPE_MENU,
+				.max = 1,
+				.qmenu = (const char * const *)vivid_ctrl_hdmi_to_output_strings,
+			};
+			dev->ctrl_hdmi_to_output[i] = v4l2_ctrl_new_custom(hdl_vid_cap,
+									   &ctrl_config, NULL);
+		}
+
+		for (u8 i = 0; i < dev->num_svid_inputs; i++) {
+			snprintf(dev->ctrl_svid_to_output_names[i],
+				 sizeof(dev->ctrl_svid_to_output_names[i]),
+				 "S-Video %03u-%u Is Connected To", dev->inst, i);
+		}
+
+		for (u8 i = 0; i < dev->num_svid_inputs; i++) {
+			struct v4l2_ctrl_config ctrl_config = {
+				.ops = &vivid_vid_cap_ctrl_ops,
+				.id = VIVID_CID_SVID_IS_CONNECTED_TO_OUTPUT(i),
+				.name = dev->ctrl_svid_to_output_names[i],
+				.type = V4L2_CTRL_TYPE_MENU,
+				.max = 1,
+				.qmenu = (const char * const *)vivid_ctrl_svid_to_output_strings,
+			};
+			dev->ctrl_svid_to_output[i] = v4l2_ctrl_new_custom(hdl_vid_cap,
+									   &ctrl_config, NULL);
+		}
+
+		if (show_ccs_cap) {
+			dev->ctrl_has_crop_cap = v4l2_ctrl_new_custom(hdl_vid_cap,
+				&vivid_ctrl_has_crop_cap, NULL);
+			dev->ctrl_has_compose_cap = v4l2_ctrl_new_custom(hdl_vid_cap,
+				&vivid_ctrl_has_compose_cap, NULL);
+			dev->ctrl_has_scaler_cap = v4l2_ctrl_new_custom(hdl_vid_cap,
+				&vivid_ctrl_has_scaler_cap, NULL);
+		}
+
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_tstamp_src, NULL);
+		dev->colorspace = v4l2_ctrl_new_custom(hdl_vid_cap,
+			&vivid_ctrl_colorspace, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_xfer_func, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_ycbcr_enc, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_hsv_enc, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_quantization, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_alpha_mode, NULL);
+	}
+
+	if (dev->has_vid_out && show_ccs_out) {
+		dev->ctrl_has_crop_out = v4l2_ctrl_new_custom(hdl_vid_out,
+			&vivid_ctrl_has_crop_out, NULL);
+		dev->ctrl_has_compose_out = v4l2_ctrl_new_custom(hdl_vid_out,
+			&vivid_ctrl_has_compose_out, NULL);
+		dev->ctrl_has_scaler_out = v4l2_ctrl_new_custom(hdl_vid_out,
+			&vivid_ctrl_has_scaler_out, NULL);
+	}
+
+	/*
+	 * Testing this driver with v4l2-compliance will trigger the error
+	 * injection controls, and after that nothing will work as expected.
+	 * So we have a module option to drop these error injecting controls
+	 * allowing us to run v4l2_compliance again.
+	 */
+	if (!no_error_inj) {
+		v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_disconnect, NULL);
+		v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_dqbuf_error, NULL);
+		v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_perc_dropped, NULL);
+		v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_queue_setup_error, NULL);
+		v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_buf_prepare_error, NULL);
+		v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_start_streaming_error, NULL);
+		v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_queue_error, NULL);
+#ifdef CONFIG_MEDIA_CONTROLLER
+		v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_req_validate_error, NULL);
+#endif
+		v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_seq_wrap, NULL);
+		v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_time_wrap, NULL);
+	}
+
+	if (has_sdtv && (dev->has_vid_cap || dev->has_vbi_cap)) {
+		if (dev->has_vid_cap)
+			v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_std_aspect_ratio, NULL);
+		dev->ctrl_std_signal_mode = v4l2_ctrl_new_custom(hdl_sdtv_cap,
+			&vivid_ctrl_std_signal_mode, NULL);
+		dev->ctrl_standard = v4l2_ctrl_new_custom(hdl_sdtv_cap,
+			&vivid_ctrl_standard, NULL);
+		if (dev->ctrl_std_signal_mode)
+			v4l2_ctrl_cluster(2, &dev->ctrl_std_signal_mode);
+		if (dev->has_raw_vbi_cap)
+			v4l2_ctrl_new_custom(hdl_vbi_cap, &vivid_ctrl_vbi_cap_interlaced, NULL);
+	}
+
+	if (dev->num_hdmi_inputs) {
+		s64 hdmi_input_mask = GENMASK(dev->num_hdmi_inputs - 1, 0);
+
+		dev->ctrl_dv_timings_signal_mode = v4l2_ctrl_new_custom(hdl_vid_cap,
+					&vivid_ctrl_dv_timings_signal_mode, NULL);
+
+		vivid_ctrl_dv_timings.max = dev->query_dv_timings_size - 1;
+		vivid_ctrl_dv_timings.qmenu =
+			(const char * const *)dev->query_dv_timings_qmenu;
+		dev->ctrl_dv_timings = v4l2_ctrl_new_custom(hdl_vid_cap,
+			&vivid_ctrl_dv_timings, NULL);
+		if (dev->ctrl_dv_timings_signal_mode)
+			v4l2_ctrl_cluster(2, &dev->ctrl_dv_timings_signal_mode);
+
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_dv_timings_aspect_ratio, NULL);
+		v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_max_edid_blocks, NULL);
+		dev->real_rgb_range_cap = v4l2_ctrl_new_custom(hdl_vid_cap,
+			&vivid_ctrl_limited_rgb_range, NULL);
+		dev->rgb_range_cap = v4l2_ctrl_new_std_menu(hdl_vid_cap,
+			&vivid_vid_cap_ctrl_ops,
+			V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
+			0, V4L2_DV_RGB_RANGE_AUTO);
+		dev->ctrl_rx_power_present = v4l2_ctrl_new_std(hdl_vid_cap,
+			NULL, V4L2_CID_DV_RX_POWER_PRESENT, 0, hdmi_input_mask,
+			0, hdmi_input_mask);
+
+	}
+	if (dev->num_hdmi_outputs) {
+		s64 hdmi_output_mask = GENMASK(dev->num_hdmi_outputs - 1, 0);
+
+		/*
+		 * We aren't doing anything with this at the moment, but
+		 * HDMI outputs typically have this controls.
+		 */
+		dev->ctrl_tx_rgb_range = v4l2_ctrl_new_std_menu(hdl_vid_out, NULL,
+			V4L2_CID_DV_TX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
+			0, V4L2_DV_RGB_RANGE_AUTO);
+		dev->ctrl_tx_mode = v4l2_ctrl_new_std_menu(hdl_vid_out, NULL,
+			V4L2_CID_DV_TX_MODE, V4L2_DV_TX_MODE_HDMI,
+			0, V4L2_DV_TX_MODE_HDMI);
+		dev->ctrl_tx_hotplug = v4l2_ctrl_new_std(hdl_vid_out, NULL,
+			V4L2_CID_DV_TX_HOTPLUG, 0, hdmi_output_mask, 0, 0);
+		dev->ctrl_tx_rxsense = v4l2_ctrl_new_std(hdl_vid_out, NULL,
+			V4L2_CID_DV_TX_RXSENSE, 0, hdmi_output_mask, 0, 0);
+		dev->ctrl_tx_edid_present = v4l2_ctrl_new_std(hdl_vid_out, NULL,
+			V4L2_CID_DV_TX_EDID_PRESENT, 0, hdmi_output_mask, 0, 0);
+	}
+
+	if (dev->has_fb)
+		v4l2_ctrl_new_custom(hdl_fb, &vivid_ctrl_clear_fb, NULL);
+
+	if (dev->has_radio_rx) {
+		v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_radio_hw_seek_mode, NULL);
+		v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_radio_hw_seek_prog_lim, NULL);
+		v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_radio_rx_rds_blockio, NULL);
+		v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_radio_rx_rds_rbds, NULL);
+		v4l2_ctrl_new_std(hdl_radio_rx, &vivid_radio_rx_ctrl_ops,
+			V4L2_CID_RDS_RECEPTION, 0, 1, 1, 1);
+		dev->radio_rx_rds_pty = v4l2_ctrl_new_std(hdl_radio_rx,
+			&vivid_radio_rx_ctrl_ops,
+			V4L2_CID_RDS_RX_PTY, 0, 31, 1, 0);
+		dev->radio_rx_rds_psname = v4l2_ctrl_new_std(hdl_radio_rx,
+			&vivid_radio_rx_ctrl_ops,
+			V4L2_CID_RDS_RX_PS_NAME, 0, 8, 8, 0);
+		dev->radio_rx_rds_radiotext = v4l2_ctrl_new_std(hdl_radio_rx,
+			&vivid_radio_rx_ctrl_ops,
+			V4L2_CID_RDS_RX_RADIO_TEXT, 0, 64, 64, 0);
+		dev->radio_rx_rds_ta = v4l2_ctrl_new_std(hdl_radio_rx,
+			&vivid_radio_rx_ctrl_ops,
+			V4L2_CID_RDS_RX_TRAFFIC_ANNOUNCEMENT, 0, 1, 1, 0);
+		dev->radio_rx_rds_tp = v4l2_ctrl_new_std(hdl_radio_rx,
+			&vivid_radio_rx_ctrl_ops,
+			V4L2_CID_RDS_RX_TRAFFIC_PROGRAM, 0, 1, 1, 0);
+		dev->radio_rx_rds_ms = v4l2_ctrl_new_std(hdl_radio_rx,
+			&vivid_radio_rx_ctrl_ops,
+			V4L2_CID_RDS_RX_MUSIC_SPEECH, 0, 1, 1, 1);
+	}
+	if (dev->has_radio_tx) {
+		v4l2_ctrl_new_custom(hdl_radio_tx,
+			&vivid_ctrl_radio_tx_rds_blockio, NULL);
+		dev->radio_tx_rds_pi = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_PI, 0, 0xffff, 1, 0x8088);
+		dev->radio_tx_rds_pty = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_PTY, 0, 31, 1, 3);
+		dev->radio_tx_rds_psname = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_PS_NAME, 0, 8, 8, 0);
+		if (dev->radio_tx_rds_psname)
+			v4l2_ctrl_s_ctrl_string(dev->radio_tx_rds_psname, "VIVID-TX");
+		dev->radio_tx_rds_radiotext = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_RADIO_TEXT, 0, 64 * 2, 64, 0);
+		if (dev->radio_tx_rds_radiotext)
+			v4l2_ctrl_s_ctrl_string(dev->radio_tx_rds_radiotext,
+			       "This is a VIVID default Radio Text template text, change at will");
+		dev->radio_tx_rds_mono_stereo = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_MONO_STEREO, 0, 1, 1, 1);
+		dev->radio_tx_rds_art_head = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_ARTIFICIAL_HEAD, 0, 1, 1, 0);
+		dev->radio_tx_rds_compressed = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_COMPRESSED, 0, 1, 1, 0);
+		dev->radio_tx_rds_dyn_pty = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_DYNAMIC_PTY, 0, 1, 1, 0);
+		dev->radio_tx_rds_ta = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT, 0, 1, 1, 0);
+		dev->radio_tx_rds_tp = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_TRAFFIC_PROGRAM, 0, 1, 1, 1);
+		dev->radio_tx_rds_ms = v4l2_ctrl_new_std(hdl_radio_tx,
+			&vivid_radio_tx_ctrl_ops,
+			V4L2_CID_RDS_TX_MUSIC_SPEECH, 0, 1, 1, 1);
+	}
+	if (dev->has_sdr_cap) {
+		v4l2_ctrl_new_custom(hdl_sdr_cap,
+			&vivid_ctrl_sdr_cap_fm_deviation, NULL);
+	}
+	if (dev->has_meta_cap) {
+		v4l2_ctrl_new_custom(hdl_meta_cap,
+				     &vivid_ctrl_meta_has_pts, NULL);
+		v4l2_ctrl_new_custom(hdl_meta_cap,
+				     &vivid_ctrl_meta_has_src_clk, NULL);
+	}
+
+	if (hdl_user_gen->error)
+		return hdl_user_gen->error;
+	if (hdl_user_vid->error)
+		return hdl_user_vid->error;
+	if (hdl_user_aud->error)
+		return hdl_user_aud->error;
+	if (hdl_streaming->error)
+		return hdl_streaming->error;
+	if (hdl_sdr_cap->error)
+		return hdl_sdr_cap->error;
+	if (hdl_loop_cap->error)
+		return hdl_loop_cap->error;
+
+	if (dev->autogain)
+		v4l2_ctrl_auto_cluster(2, &dev->autogain, 0, true);
+
+	if (dev->has_vid_cap) {
+		v4l2_ctrl_add_handler(hdl_vid_cap, hdl_user_gen, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vid_cap, hdl_user_vid, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vid_cap, hdl_user_aud, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vid_cap, hdl_streaming, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vid_cap, hdl_sdtv_cap, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vid_cap, hdl_loop_cap, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vid_cap, hdl_fb, NULL, false);
+		if (hdl_vid_cap->error)
+			return hdl_vid_cap->error;
+		dev->vid_cap_dev.ctrl_handler = hdl_vid_cap;
+	}
+	if (dev->has_vid_out) {
+		v4l2_ctrl_add_handler(hdl_vid_out, hdl_user_gen, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vid_out, hdl_user_aud, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vid_out, hdl_streaming, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vid_out, hdl_fb, NULL, false);
+		if (hdl_vid_out->error)
+			return hdl_vid_out->error;
+		dev->vid_out_dev.ctrl_handler = hdl_vid_out;
+	}
+	if (dev->has_vbi_cap) {
+		v4l2_ctrl_add_handler(hdl_vbi_cap, hdl_user_gen, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vbi_cap, hdl_streaming, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vbi_cap, hdl_sdtv_cap, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vbi_cap, hdl_loop_cap, NULL, false);
+		if (hdl_vbi_cap->error)
+			return hdl_vbi_cap->error;
+		dev->vbi_cap_dev.ctrl_handler = hdl_vbi_cap;
+	}
+	if (dev->has_vbi_out) {
+		v4l2_ctrl_add_handler(hdl_vbi_out, hdl_user_gen, NULL, false);
+		v4l2_ctrl_add_handler(hdl_vbi_out, hdl_streaming, NULL, false);
+		if (hdl_vbi_out->error)
+			return hdl_vbi_out->error;
+		dev->vbi_out_dev.ctrl_handler = hdl_vbi_out;
+	}
+	if (dev->has_radio_rx) {
+		v4l2_ctrl_add_handler(hdl_radio_rx, hdl_user_gen, NULL, false);
+		v4l2_ctrl_add_handler(hdl_radio_rx, hdl_user_aud, NULL, false);
+		if (hdl_radio_rx->error)
+			return hdl_radio_rx->error;
+		dev->radio_rx_dev.ctrl_handler = hdl_radio_rx;
+	}
+	if (dev->has_radio_tx) {
+		v4l2_ctrl_add_handler(hdl_radio_tx, hdl_user_gen, NULL, false);
+		v4l2_ctrl_add_handler(hdl_radio_tx, hdl_user_aud, NULL, false);
+		if (hdl_radio_tx->error)
+			return hdl_radio_tx->error;
+		dev->radio_tx_dev.ctrl_handler = hdl_radio_tx;
+	}
+	if (dev->has_sdr_cap) {
+		v4l2_ctrl_add_handler(hdl_sdr_cap, hdl_user_gen, NULL, false);
+		v4l2_ctrl_add_handler(hdl_sdr_cap, hdl_streaming, NULL, false);
+		if (hdl_sdr_cap->error)
+			return hdl_sdr_cap->error;
+		dev->sdr_cap_dev.ctrl_handler = hdl_sdr_cap;
+	}
+	if (dev->has_meta_cap) {
+		v4l2_ctrl_add_handler(hdl_meta_cap, hdl_user_gen, NULL, false);
+		v4l2_ctrl_add_handler(hdl_meta_cap, hdl_streaming, NULL, false);
+		if (hdl_meta_cap->error)
+			return hdl_meta_cap->error;
+		dev->meta_cap_dev.ctrl_handler = hdl_meta_cap;
+	}
+	if (dev->has_meta_out) {
+		v4l2_ctrl_add_handler(hdl_meta_out, hdl_user_gen, NULL, false);
+		v4l2_ctrl_add_handler(hdl_meta_out, hdl_streaming, NULL, false);
+		if (hdl_meta_out->error)
+			return hdl_meta_out->error;
+		dev->meta_out_dev.ctrl_handler = hdl_meta_out;
+	}
+	if (dev->has_touch_cap) {
+		v4l2_ctrl_add_handler(hdl_tch_cap, hdl_user_gen, NULL, false);
+		v4l2_ctrl_add_handler(hdl_tch_cap, hdl_streaming, NULL, false);
+		if (hdl_tch_cap->error)
+			return hdl_tch_cap->error;
+		dev->touch_cap_dev.ctrl_handler = hdl_tch_cap;
+	}
+	return 0;
+}
+
+void vivid_free_controls(struct vivid_dev *dev)
+{
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_vid_cap);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_vid_out);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_vbi_cap);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_vbi_out);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_radio_rx);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_radio_tx);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_sdr_cap);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_user_gen);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_user_vid);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_user_aud);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_streaming);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_sdtv_cap);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_loop_cap);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_fb);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_meta_cap);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_meta_out);
+	v4l2_ctrl_handler_free(&dev->ctrl_hdl_touch_cap);
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-ctrls.h b/drivers/media/test-drivers/vivid/vivid-ctrls.h
new file mode 100644
index 000000000..6fad5f5d0
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-ctrls.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-ctrls.h - control support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_CTRLS_H_
+#define _VIVID_CTRLS_H_
+
+enum vivid_hw_seek_modes {
+	VIVID_HW_SEEK_BOUNDED,
+	VIVID_HW_SEEK_WRAP,
+	VIVID_HW_SEEK_BOTH,
+};
+
+int vivid_create_controls(struct vivid_dev *dev, bool show_ccs_cap,
+		bool show_ccs_out, bool no_error_inj,
+		bool has_sdtv, bool has_hdmi);
+void vivid_free_controls(struct vivid_dev *dev);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-cap.c b/drivers/media/test-drivers/vivid/vivid-kthread-cap.c
new file mode 100644
index 000000000..d845e1644
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-kthread-cap.c
@@ -0,0 +1,915 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-kthread-cap.h - video/vbi capture thread support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/font.h>
+#include <linux/mutex.h>
+#include <linux/videodev2.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+#include <linux/random.h>
+#include <linux/v4l2-dv-timings.h>
+#include <linux/jiffies.h>
+#include <asm/div64.h>
+#include <media/videobuf2-vmalloc.h>
+#include <media/v4l2-dv-timings.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-rect.h>
+
+#include "vivid-core.h"
+#include "vivid-vid-common.h"
+#include "vivid-vid-cap.h"
+#include "vivid-vid-out.h"
+#include "vivid-radio-common.h"
+#include "vivid-radio-rx.h"
+#include "vivid-radio-tx.h"
+#include "vivid-sdr-cap.h"
+#include "vivid-vbi-cap.h"
+#include "vivid-vbi-out.h"
+#include "vivid-osd.h"
+#include "vivid-ctrls.h"
+#include "vivid-kthread-cap.h"
+#include "vivid-meta-cap.h"
+
+static inline v4l2_std_id vivid_get_std_cap(const struct vivid_dev *dev)
+{
+	if (vivid_is_sdtv_cap(dev))
+		return dev->std_cap[dev->input];
+	return 0;
+}
+
+static void copy_pix(struct vivid_dev *dev, int win_y, int win_x,
+			u16 *cap, const u16 *osd)
+{
+	u16 out;
+
+	out = *cap;
+	*cap = *osd;
+
+	if ((dev->fbuf_out_flags & V4L2_FBUF_FLAG_CHROMAKEY) &&
+	    *osd != dev->chromakey_out)
+		return;
+	if ((dev->fbuf_out_flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) &&
+	    out == dev->chromakey_out)
+		return;
+	if (dev->fmt_cap->alpha_mask) {
+		if ((dev->fbuf_out_flags & V4L2_FBUF_FLAG_GLOBAL_ALPHA) &&
+		    dev->global_alpha_out)
+			return;
+		if ((dev->fbuf_out_flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) &&
+		    *cap & dev->fmt_cap->alpha_mask)
+			return;
+		if ((dev->fbuf_out_flags & V4L2_FBUF_FLAG_LOCAL_INV_ALPHA) &&
+		    !(*cap & dev->fmt_cap->alpha_mask))
+			return;
+	}
+	*cap = out;
+}
+
+static void blend_line(struct vivid_dev *dev, unsigned y_offset, unsigned x_offset,
+		u8 *vcapbuf, const u8 *vosdbuf,
+		unsigned width, unsigned pixsize)
+{
+	unsigned x;
+
+	for (x = 0; x < width; x++, vcapbuf += pixsize, vosdbuf += pixsize) {
+		copy_pix(dev, y_offset, x_offset + x,
+			 (u16 *)vcapbuf, (const u16 *)vosdbuf);
+	}
+}
+
+static void scale_line(const u8 *src, u8 *dst, unsigned srcw, unsigned dstw, unsigned twopixsize)
+{
+	/* Coarse scaling with Bresenham */
+	unsigned int_part;
+	unsigned fract_part;
+	unsigned src_x = 0;
+	unsigned error = 0;
+	unsigned x;
+
+	/*
+	 * We always combine two pixels to prevent color bleed in the packed
+	 * yuv case.
+	 */
+	srcw /= 2;
+	dstw /= 2;
+	int_part = srcw / dstw;
+	fract_part = srcw % dstw;
+	for (x = 0; x < dstw; x++, dst += twopixsize) {
+		memcpy(dst, src + src_x * twopixsize, twopixsize);
+		src_x += int_part;
+		error += fract_part;
+		if (error >= dstw) {
+			error -= dstw;
+			src_x++;
+		}
+	}
+}
+
+/*
+ * Precalculate the rectangles needed to perform video looping:
+ *
+ * The nominal pipeline is that the video output buffer is cropped by
+ * crop_out, scaled to compose_out, overlaid with the output overlay,
+ * cropped on the capture side by crop_cap and scaled again to the video
+ * capture buffer using compose_cap.
+ *
+ * To keep things efficient we calculate the intersection of compose_out
+ * and crop_cap (since that's the only part of the video that will
+ * actually end up in the capture buffer), determine which part of the
+ * video output buffer that is and which part of the video capture buffer
+ * so we can scale the video straight from the output buffer to the capture
+ * buffer without any intermediate steps.
+ *
+ * If we need to deal with an output overlay, then there is no choice and
+ * that intermediate step still has to be taken. For the output overlay
+ * support we calculate the intersection of the framebuffer and the overlay
+ * window (which may be partially or wholly outside of the framebuffer
+ * itself) and the intersection of that with loop_vid_copy (i.e. the part of
+ * the actual looped video that will be overlaid). The result is calculated
+ * both in framebuffer coordinates (loop_fb_copy) and compose_out coordinates
+ * (loop_vid_overlay). Finally calculate the part of the capture buffer that
+ * will receive that overlaid video.
+ */
+static void vivid_precalc_copy_rects(struct vivid_dev *dev, struct vivid_dev *out_dev)
+{
+	/* Framebuffer rectangle */
+	struct v4l2_rect r_fb = {
+		0, 0, dev->display_width, dev->display_height
+	};
+	/* Overlay window rectangle in framebuffer coordinates */
+	struct v4l2_rect r_overlay = {
+		out_dev->overlay_out_left, out_dev->overlay_out_top,
+		out_dev->compose_out.width, out_dev->compose_out.height
+	};
+
+	v4l2_rect_intersect(&dev->loop_vid_copy, &dev->crop_cap, &out_dev->compose_out);
+
+	dev->loop_vid_out = dev->loop_vid_copy;
+	v4l2_rect_scale(&dev->loop_vid_out, &out_dev->compose_out, &out_dev->crop_out);
+	dev->loop_vid_out.left += out_dev->crop_out.left;
+	dev->loop_vid_out.top += out_dev->crop_out.top;
+
+	dev->loop_vid_cap = dev->loop_vid_copy;
+	v4l2_rect_scale(&dev->loop_vid_cap, &dev->crop_cap, &dev->compose_cap);
+
+	dprintk(dev, 1,
+		"loop_vid_copy: (%d,%d)/%ux%u loop_vid_out: (%d,%d)/%ux%u loop_vid_cap: (%d,%d)/%ux%u\n",
+		dev->loop_vid_copy.left, dev->loop_vid_copy.top,
+		dev->loop_vid_copy.width, dev->loop_vid_copy.height,
+		dev->loop_vid_out.left, dev->loop_vid_out.top,
+		dev->loop_vid_out.width, dev->loop_vid_out.height,
+		dev->loop_vid_cap.left, dev->loop_vid_cap.top,
+		dev->loop_vid_cap.width, dev->loop_vid_cap.height);
+
+	v4l2_rect_intersect(&r_overlay, &r_fb, &r_overlay);
+
+	/* shift r_overlay to the same origin as compose_out */
+	r_overlay.left += out_dev->compose_out.left - out_dev->overlay_out_left;
+	r_overlay.top += out_dev->compose_out.top - out_dev->overlay_out_top;
+
+	v4l2_rect_intersect(&dev->loop_vid_overlay, &r_overlay, &dev->loop_vid_copy);
+	dev->loop_fb_copy = dev->loop_vid_overlay;
+
+	/* shift dev->loop_fb_copy back again to the fb origin */
+	dev->loop_fb_copy.left -= out_dev->compose_out.left - out_dev->overlay_out_left;
+	dev->loop_fb_copy.top -= out_dev->compose_out.top - out_dev->overlay_out_top;
+
+	dev->loop_vid_overlay_cap = dev->loop_vid_overlay;
+	v4l2_rect_scale(&dev->loop_vid_overlay_cap, &dev->crop_cap, &dev->compose_cap);
+
+	dprintk(dev, 1,
+		"loop_fb_copy: (%d,%d)/%ux%u loop_vid_overlay: (%d,%d)/%ux%u loop_vid_overlay_cap: (%d,%d)/%ux%u\n",
+		dev->loop_fb_copy.left, dev->loop_fb_copy.top,
+		dev->loop_fb_copy.width, dev->loop_fb_copy.height,
+		dev->loop_vid_overlay.left, dev->loop_vid_overlay.top,
+		dev->loop_vid_overlay.width, dev->loop_vid_overlay.height,
+		dev->loop_vid_overlay_cap.left, dev->loop_vid_overlay_cap.top,
+		dev->loop_vid_overlay_cap.width, dev->loop_vid_overlay_cap.height);
+}
+
+static void *plane_vaddr(struct tpg_data *tpg, struct vivid_buffer *buf,
+			 unsigned p, unsigned bpl[TPG_MAX_PLANES], unsigned h)
+{
+	unsigned i;
+	void *vbuf;
+
+	if (p == 0 || tpg_g_buffers(tpg) > 1)
+		return vb2_plane_vaddr(&buf->vb.vb2_buf, p);
+	vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+	for (i = 0; i < p; i++)
+		vbuf += bpl[i] * h / tpg->vdownsampling[i];
+	return vbuf;
+}
+
+static noinline_for_stack int vivid_copy_buffer(struct vivid_dev *dev,
+						struct vivid_dev *out_dev, unsigned p,
+						u8 *vcapbuf, struct vivid_buffer *vid_cap_buf)
+{
+	bool blank = dev->must_blank[vid_cap_buf->vb.vb2_buf.index];
+	struct tpg_data *tpg = &dev->tpg;
+	struct vivid_buffer *vid_out_buf = NULL;
+	unsigned vdiv = out_dev->fmt_out->vdownsampling[p];
+	unsigned twopixsize = tpg_g_twopixelsize(tpg, p);
+	unsigned img_width = tpg_hdiv(tpg, p, dev->compose_cap.width);
+	unsigned img_height = dev->compose_cap.height;
+	unsigned stride_cap = tpg->bytesperline[p];
+	unsigned stride_out = out_dev->bytesperline_out[p];
+	unsigned stride_osd = dev->display_byte_stride;
+	unsigned hmax = (img_height * tpg->perc_fill) / 100;
+	u8 *voutbuf;
+	u8 *vosdbuf = NULL;
+	unsigned y;
+	bool blend = out_dev->fbuf_out_flags;
+	/* Coarse scaling with Bresenham */
+	unsigned vid_out_int_part;
+	unsigned vid_out_fract_part;
+	unsigned vid_out_y = 0;
+	unsigned vid_out_error = 0;
+	unsigned vid_overlay_int_part = 0;
+	unsigned vid_overlay_fract_part = 0;
+	unsigned vid_overlay_y = 0;
+	unsigned vid_overlay_error = 0;
+	unsigned vid_cap_left = tpg_hdiv(tpg, p, dev->loop_vid_cap.left);
+	unsigned vid_cap_right;
+	bool quick;
+
+	vid_out_int_part = dev->loop_vid_out.height / dev->loop_vid_cap.height;
+	vid_out_fract_part = dev->loop_vid_out.height % dev->loop_vid_cap.height;
+
+	if (!list_empty(&out_dev->vid_out_active))
+		vid_out_buf = list_entry(out_dev->vid_out_active.next,
+					 struct vivid_buffer, list);
+	if (vid_out_buf == NULL)
+		return -ENODATA;
+
+	vid_cap_buf->vb.field = vid_out_buf->vb.field;
+
+	voutbuf = plane_vaddr(tpg, vid_out_buf, p,
+			      out_dev->bytesperline_out, out_dev->fmt_out_rect.height);
+	if (p < out_dev->fmt_out->buffers)
+		voutbuf += vid_out_buf->vb.vb2_buf.planes[p].data_offset;
+	voutbuf += tpg_hdiv(tpg, p, dev->loop_vid_out.left) +
+		(dev->loop_vid_out.top / vdiv) * stride_out;
+	vcapbuf += tpg_hdiv(tpg, p, dev->compose_cap.left) +
+		(dev->compose_cap.top / vdiv) * stride_cap;
+
+	if (dev->loop_vid_copy.width == 0 || dev->loop_vid_copy.height == 0) {
+		/*
+		 * If there is nothing to copy, then just fill the capture window
+		 * with black.
+		 */
+		for (y = 0; y < hmax / vdiv; y++, vcapbuf += stride_cap)
+			memcpy(vcapbuf, tpg->black_line[p], img_width);
+		return 0;
+	}
+
+	if (out_dev->overlay_out_enabled &&
+	    dev->loop_vid_overlay.width && dev->loop_vid_overlay.height) {
+		vosdbuf = dev->video_vbase;
+		vosdbuf += (dev->loop_fb_copy.left * twopixsize) / 2 +
+			   dev->loop_fb_copy.top * stride_osd;
+		vid_overlay_int_part = dev->loop_vid_overlay.height /
+				       dev->loop_vid_overlay_cap.height;
+		vid_overlay_fract_part = dev->loop_vid_overlay.height %
+					 dev->loop_vid_overlay_cap.height;
+	}
+
+	vid_cap_right = tpg_hdiv(tpg, p, dev->loop_vid_cap.left + dev->loop_vid_cap.width);
+	/* quick is true if no video scaling is needed */
+	quick = dev->loop_vid_out.width == dev->loop_vid_cap.width;
+
+	dev->cur_scaled_line = dev->loop_vid_out.height;
+	for (y = 0; y < hmax; y += vdiv, vcapbuf += stride_cap) {
+		/* osdline is true if this line requires overlay blending */
+		bool osdline = vosdbuf && y >= dev->loop_vid_overlay_cap.top &&
+			  y < dev->loop_vid_overlay_cap.top + dev->loop_vid_overlay_cap.height;
+
+		/*
+		 * If this line of the capture buffer doesn't get any video, then
+		 * just fill with black.
+		 */
+		if (y < dev->loop_vid_cap.top ||
+		    y >= dev->loop_vid_cap.top + dev->loop_vid_cap.height) {
+			memcpy(vcapbuf, tpg->black_line[p], img_width);
+			continue;
+		}
+
+		/* fill the left border with black */
+		if (dev->loop_vid_cap.left)
+			memcpy(vcapbuf, tpg->black_line[p], vid_cap_left);
+
+		/* fill the right border with black */
+		if (vid_cap_right < img_width)
+			memcpy(vcapbuf + vid_cap_right, tpg->black_line[p],
+				img_width - vid_cap_right);
+
+		if (quick && !osdline) {
+			memcpy(vcapbuf + vid_cap_left,
+			       voutbuf + vid_out_y * stride_out,
+			       tpg_hdiv(tpg, p, dev->loop_vid_cap.width));
+			goto update_vid_out_y;
+		}
+		if (dev->cur_scaled_line == vid_out_y) {
+			memcpy(vcapbuf + vid_cap_left, dev->scaled_line,
+			       tpg_hdiv(tpg, p, dev->loop_vid_cap.width));
+			goto update_vid_out_y;
+		}
+		if (!osdline) {
+			scale_line(voutbuf + vid_out_y * stride_out, dev->scaled_line,
+				tpg_hdiv(tpg, p, dev->loop_vid_out.width),
+				tpg_hdiv(tpg, p, dev->loop_vid_cap.width),
+				tpg_g_twopixelsize(tpg, p));
+		} else {
+			/*
+			 * Offset in bytes within loop_vid_copy to the start of the
+			 * loop_vid_overlay rectangle.
+			 */
+			unsigned offset =
+				((dev->loop_vid_overlay.left - dev->loop_vid_copy.left) *
+				 twopixsize) / 2;
+			u8 *osd = vosdbuf + vid_overlay_y * stride_osd;
+
+			scale_line(voutbuf + vid_out_y * stride_out, dev->blended_line,
+				dev->loop_vid_out.width, dev->loop_vid_copy.width,
+				tpg_g_twopixelsize(tpg, p));
+			if (blend)
+				blend_line(dev, vid_overlay_y + dev->loop_vid_overlay.top,
+					   dev->loop_vid_overlay.left,
+					   dev->blended_line + offset, osd,
+					   dev->loop_vid_overlay.width, twopixsize / 2);
+			else
+				memcpy(dev->blended_line + offset,
+				       osd, (dev->loop_vid_overlay.width * twopixsize) / 2);
+			scale_line(dev->blended_line, dev->scaled_line,
+					dev->loop_vid_copy.width, dev->loop_vid_cap.width,
+					tpg_g_twopixelsize(tpg, p));
+		}
+		dev->cur_scaled_line = vid_out_y;
+		memcpy(vcapbuf + vid_cap_left, dev->scaled_line,
+		       tpg_hdiv(tpg, p, dev->loop_vid_cap.width));
+
+update_vid_out_y:
+		if (osdline) {
+			vid_overlay_y += vid_overlay_int_part;
+			vid_overlay_error += vid_overlay_fract_part;
+			if (vid_overlay_error >= dev->loop_vid_overlay_cap.height) {
+				vid_overlay_error -= dev->loop_vid_overlay_cap.height;
+				vid_overlay_y++;
+			}
+		}
+		vid_out_y += vid_out_int_part;
+		vid_out_error += vid_out_fract_part;
+		if (vid_out_error >= dev->loop_vid_cap.height / vdiv) {
+			vid_out_error -= dev->loop_vid_cap.height / vdiv;
+			vid_out_y++;
+		}
+	}
+
+	if (!blank)
+		return 0;
+	for (; y < img_height; y += vdiv, vcapbuf += stride_cap)
+		memcpy(vcapbuf, tpg->contrast_line[p], img_width);
+	return 0;
+}
+
+static void vivid_fillbuff(struct vivid_dev *dev, struct vivid_buffer *buf)
+{
+	struct vivid_dev *out_dev = NULL;
+	struct tpg_data *tpg = &dev->tpg;
+	unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
+	unsigned line_height = 16 / factor;
+	bool is_tv = vivid_is_sdtv_cap(dev);
+	bool is_60hz = is_tv && (dev->std_cap[dev->input] & V4L2_STD_525_60);
+	unsigned p;
+	int line = 1;
+	u8 *basep[TPG_MAX_PLANES][2];
+	unsigned ms;
+	char str[100];
+	s32 gain;
+
+	buf->vb.sequence = dev->vid_cap_seq_count;
+	v4l2_ctrl_s_ctrl(dev->ro_int32, buf->vb.sequence & 0xff);
+	if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
+		/*
+		 * 60 Hz standards start with the bottom field, 50 Hz standards
+		 * with the top field. So if the 0-based seq_count is even,
+		 * then the field is TOP for 50 Hz and BOTTOM for 60 Hz
+		 * standards.
+		 */
+		buf->vb.field = ((dev->vid_cap_seq_count & 1) ^ is_60hz) ?
+			V4L2_FIELD_BOTTOM : V4L2_FIELD_TOP;
+		/*
+		 * The sequence counter counts frames, not fields. So divide
+		 * by two.
+		 */
+		buf->vb.sequence /= 2;
+	} else {
+		buf->vb.field = dev->field_cap;
+	}
+	tpg_s_field(tpg, buf->vb.field,
+		    dev->field_cap == V4L2_FIELD_ALTERNATE);
+	tpg_s_perc_fill_blank(tpg, dev->must_blank[buf->vb.vb2_buf.index]);
+
+	if (vivid_vid_can_loop(dev) &&
+	    ((vivid_is_svid_cap(dev) &&
+	    !VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input])) ||
+	    (vivid_is_hdmi_cap(dev) &&
+	    !VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode[dev->input])))) {
+		out_dev = vivid_input_is_connected_to(dev);
+		/*
+		 * If the vivid instance of the output device is different
+		 * from the vivid instance of this input device, then we
+		 * must take care to properly serialize the output device to
+		 * prevent that the buffer we are copying from is being freed.
+		 *
+		 * If the output device is part of the same instance, then the
+		 * lock is already taken and there is no need to take the mutex.
+		 *
+		 * The problem with taking the mutex is that you can get
+		 * deadlocked if instance A locks instance B and vice versa.
+		 * It is not really worth trying to be very smart about this,
+		 * so just try to take the lock, and if you can't, then just
+		 * set out_dev to NULL and you will end up with a single frame
+		 * of Noise (the default test pattern in this case).
+		 */
+		if (out_dev && dev != out_dev && !mutex_trylock(&out_dev->mutex))
+			out_dev = NULL;
+	}
+
+	if (out_dev)
+		vivid_precalc_copy_rects(dev, out_dev);
+
+	for (p = 0; p < tpg_g_planes(tpg); p++) {
+		void *vbuf = plane_vaddr(tpg, buf, p,
+					 tpg->bytesperline, tpg->buf_height);
+
+		/*
+		 * The first plane of a multiplanar format has a non-zero
+		 * data_offset. This helps testing whether the application
+		 * correctly supports non-zero data offsets.
+		 */
+		if (p < tpg_g_buffers(tpg) && dev->fmt_cap->data_offset[p]) {
+			memset(vbuf, dev->fmt_cap->data_offset[p] & 0xff,
+			       dev->fmt_cap->data_offset[p]);
+			vbuf += dev->fmt_cap->data_offset[p];
+		}
+		tpg_calc_text_basep(tpg, basep, p, vbuf);
+		if (!out_dev || vivid_copy_buffer(dev, out_dev, p, vbuf, buf))
+			tpg_fill_plane_buffer(tpg, vivid_get_std_cap(dev),
+					p, vbuf);
+	}
+	if (out_dev && dev != out_dev)
+		mutex_unlock(&out_dev->mutex);
+
+	dev->must_blank[buf->vb.vb2_buf.index] = false;
+
+	/* Updates stream time, only update at the start of a new frame. */
+	if (dev->field_cap != V4L2_FIELD_ALTERNATE ||
+			(dev->vid_cap_seq_count & 1) == 0)
+		dev->ms_vid_cap =
+			jiffies_to_msecs(jiffies - dev->jiffies_vid_cap);
+
+	ms = dev->ms_vid_cap;
+	if (dev->osd_mode <= 1) {
+		snprintf(str, sizeof(str), " %02d:%02d:%02d:%03d %u%s",
+				(ms / (60 * 60 * 1000)) % 24,
+				(ms / (60 * 1000)) % 60,
+				(ms / 1000) % 60,
+				ms % 1000,
+				buf->vb.sequence,
+				(dev->field_cap == V4L2_FIELD_ALTERNATE) ?
+					(buf->vb.field == V4L2_FIELD_TOP ?
+					 " top" : " bottom") : "");
+		tpg_gen_text(tpg, basep, line++ * line_height, 16, str);
+	}
+	if (dev->osd_mode == 0) {
+		snprintf(str, sizeof(str), " %dx%d, input %d ",
+				dev->src_rect.width, dev->src_rect.height, dev->input);
+		tpg_gen_text(tpg, basep, line++ * line_height, 16, str);
+
+		gain = v4l2_ctrl_g_ctrl(dev->gain);
+		mutex_lock(dev->ctrl_hdl_user_vid.lock);
+		snprintf(str, sizeof(str),
+			" brightness %3d, contrast %3d, saturation %3d, hue %d ",
+			dev->brightness->cur.val,
+			dev->contrast->cur.val,
+			dev->saturation->cur.val,
+			dev->hue->cur.val);
+		tpg_gen_text(tpg, basep, line++ * line_height, 16, str);
+		snprintf(str, sizeof(str),
+			" autogain %d, gain %3d, alpha 0x%02x ",
+			dev->autogain->cur.val, gain, dev->alpha->cur.val);
+		mutex_unlock(dev->ctrl_hdl_user_vid.lock);
+		tpg_gen_text(tpg, basep, line++ * line_height, 16, str);
+		mutex_lock(dev->ctrl_hdl_user_aud.lock);
+		snprintf(str, sizeof(str),
+			" volume %3d, mute %d ",
+			dev->volume->cur.val, dev->mute->cur.val);
+		mutex_unlock(dev->ctrl_hdl_user_aud.lock);
+		tpg_gen_text(tpg, basep, line++ * line_height, 16, str);
+		mutex_lock(dev->ctrl_hdl_user_gen.lock);
+		snprintf(str, sizeof(str), " int32 %d, ro_int32 %d, int64 %lld, bitmask %08x ",
+			 dev->int32->cur.val,
+			 dev->ro_int32->cur.val,
+			 *dev->int64->p_cur.p_s64,
+			 dev->bitmask->cur.val);
+		tpg_gen_text(tpg, basep, line++ * line_height, 16, str);
+		snprintf(str, sizeof(str), " boolean %d, menu %s, string \"%s\" ",
+			dev->boolean->cur.val,
+			dev->menu->qmenu[dev->menu->cur.val],
+			dev->string->p_cur.p_char);
+		tpg_gen_text(tpg, basep, line++ * line_height, 16, str);
+		snprintf(str, sizeof(str), " integer_menu %lld, value %d ",
+			dev->int_menu->qmenu_int[dev->int_menu->cur.val],
+			dev->int_menu->cur.val);
+		mutex_unlock(dev->ctrl_hdl_user_gen.lock);
+		tpg_gen_text(tpg, basep, line++ * line_height, 16, str);
+		if (dev->button_pressed) {
+			dev->button_pressed--;
+			snprintf(str, sizeof(str), " button pressed!");
+			tpg_gen_text(tpg, basep, line++ * line_height, 16, str);
+		}
+		if (dev->osd[0]) {
+			if (vivid_is_hdmi_cap(dev)) {
+				snprintf(str, sizeof(str),
+					 " OSD \"%s\"", dev->osd);
+				tpg_gen_text(tpg, basep, line++ * line_height,
+					     16, str);
+			}
+			if (dev->osd_jiffies &&
+			    time_is_before_jiffies(dev->osd_jiffies + 5 * HZ)) {
+				dev->osd[0] = 0;
+				dev->osd_jiffies = 0;
+			}
+		}
+	}
+}
+
+static void vivid_cap_update_frame_period(struct vivid_dev *dev)
+{
+	u64 f_period;
+
+	f_period = (u64)dev->timeperframe_vid_cap.numerator * 1000000000;
+	if (WARN_ON(dev->timeperframe_vid_cap.denominator == 0))
+		dev->timeperframe_vid_cap.denominator = 1;
+	do_div(f_period, dev->timeperframe_vid_cap.denominator);
+	if (dev->field_cap == V4L2_FIELD_ALTERNATE)
+		f_period >>= 1;
+	/*
+	 * If "End of Frame", then offset the exposure time by 0.9
+	 * of the frame period.
+	 */
+	dev->cap_frame_eof_offset = f_period * 9;
+	do_div(dev->cap_frame_eof_offset, 10);
+	dev->cap_frame_period = f_period;
+}
+
+static noinline_for_stack void vivid_thread_vid_cap_tick(struct vivid_dev *dev,
+							 int dropped_bufs)
+{
+	struct vivid_buffer *vid_cap_buf = NULL;
+	struct vivid_buffer *vbi_cap_buf = NULL;
+	struct vivid_buffer *meta_cap_buf = NULL;
+	u64 f_time = 0;
+
+	dprintk(dev, 1, "Video Capture Thread Tick\n");
+
+	while (dropped_bufs-- > 1)
+		tpg_update_mv_count(&dev->tpg,
+				dev->field_cap == V4L2_FIELD_NONE ||
+				dev->field_cap == V4L2_FIELD_ALTERNATE);
+
+	/* Drop a certain percentage of buffers. */
+	if (dev->perc_dropped_buffers &&
+	    get_random_u32_below(100) < dev->perc_dropped_buffers)
+		goto update_mv;
+
+	spin_lock(&dev->slock);
+	if (!list_empty(&dev->vid_cap_active)) {
+		vid_cap_buf = list_entry(dev->vid_cap_active.next, struct vivid_buffer, list);
+		list_del(&vid_cap_buf->list);
+	}
+	if (!list_empty(&dev->vbi_cap_active)) {
+		if (dev->field_cap != V4L2_FIELD_ALTERNATE ||
+		    (dev->vbi_cap_seq_count & 1)) {
+			vbi_cap_buf = list_entry(dev->vbi_cap_active.next,
+						 struct vivid_buffer, list);
+			list_del(&vbi_cap_buf->list);
+		}
+	}
+	if (!list_empty(&dev->meta_cap_active)) {
+		meta_cap_buf = list_entry(dev->meta_cap_active.next,
+					  struct vivid_buffer, list);
+		list_del(&meta_cap_buf->list);
+	}
+
+	spin_unlock(&dev->slock);
+
+	if (!vid_cap_buf && !vbi_cap_buf && !meta_cap_buf)
+		goto update_mv;
+
+	f_time = ktime_get_ns() + dev->time_wrap_offset;
+
+	if (vid_cap_buf) {
+		v4l2_ctrl_request_setup(vid_cap_buf->vb.vb2_buf.req_obj.req,
+					&dev->ctrl_hdl_vid_cap);
+		/* Fill buffer */
+		vivid_fillbuff(dev, vid_cap_buf);
+		dprintk(dev, 1, "filled buffer %d\n",
+			vid_cap_buf->vb.vb2_buf.index);
+
+		v4l2_ctrl_request_complete(vid_cap_buf->vb.vb2_buf.req_obj.req,
+					   &dev->ctrl_hdl_vid_cap);
+		vb2_buffer_done(&vid_cap_buf->vb.vb2_buf, dev->dqbuf_error ?
+				VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
+		dprintk(dev, 2, "vid_cap buffer %d done\n",
+				vid_cap_buf->vb.vb2_buf.index);
+
+		vid_cap_buf->vb.vb2_buf.timestamp = f_time;
+		if (!dev->tstamp_src_is_soe)
+			vid_cap_buf->vb.vb2_buf.timestamp += dev->cap_frame_eof_offset;
+	}
+
+	if (vbi_cap_buf) {
+		u64 vbi_period;
+
+		v4l2_ctrl_request_setup(vbi_cap_buf->vb.vb2_buf.req_obj.req,
+					&dev->ctrl_hdl_vbi_cap);
+		if (vbi_cap_buf->vb.vb2_buf.type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
+			vivid_sliced_vbi_cap_process(dev, vbi_cap_buf);
+		else
+			vivid_raw_vbi_cap_process(dev, vbi_cap_buf);
+		v4l2_ctrl_request_complete(vbi_cap_buf->vb.vb2_buf.req_obj.req,
+					   &dev->ctrl_hdl_vbi_cap);
+		vb2_buffer_done(&vbi_cap_buf->vb.vb2_buf, dev->dqbuf_error ?
+				VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
+		dprintk(dev, 2, "vbi_cap %d done\n",
+				vbi_cap_buf->vb.vb2_buf.index);
+
+		/* If capturing a VBI, offset by 0.05 */
+		vbi_period = dev->cap_frame_period * 5;
+		do_div(vbi_period, 100);
+		vbi_cap_buf->vb.vb2_buf.timestamp = f_time + dev->cap_frame_eof_offset + vbi_period;
+	}
+
+	if (meta_cap_buf) {
+		v4l2_ctrl_request_setup(meta_cap_buf->vb.vb2_buf.req_obj.req,
+					&dev->ctrl_hdl_meta_cap);
+		vivid_meta_cap_fillbuff(dev, meta_cap_buf, f_time);
+		v4l2_ctrl_request_complete(meta_cap_buf->vb.vb2_buf.req_obj.req,
+					   &dev->ctrl_hdl_meta_cap);
+		vb2_buffer_done(&meta_cap_buf->vb.vb2_buf, dev->dqbuf_error ?
+				VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
+		dprintk(dev, 2, "meta_cap %d done\n",
+			meta_cap_buf->vb.vb2_buf.index);
+		meta_cap_buf->vb.vb2_buf.timestamp = f_time + dev->cap_frame_eof_offset;
+	}
+
+	dev->dqbuf_error = false;
+
+update_mv:
+	/* Update the test pattern movement counters */
+	tpg_update_mv_count(&dev->tpg, dev->field_cap == V4L2_FIELD_NONE ||
+				       dev->field_cap == V4L2_FIELD_ALTERNATE);
+}
+
+static int vivid_thread_vid_cap(void *data)
+{
+	struct vivid_dev *dev = data;
+	u64 numerators_since_start;
+	u64 buffers_since_start;
+	u64 next_jiffies_since_start;
+	unsigned long jiffies_since_start;
+	unsigned long cur_jiffies;
+	unsigned wait_jiffies;
+	unsigned numerator;
+	unsigned denominator;
+	int dropped_bufs;
+
+	dprintk(dev, 1, "Video Capture Thread Start\n");
+
+	set_freezable();
+
+	/* Resets frame counters */
+	dev->cap_seq_offset = 0;
+	dev->cap_seq_count = 0;
+	dev->cap_seq_resync = false;
+	dev->jiffies_vid_cap = jiffies;
+	dev->cap_stream_start = ktime_get_ns();
+	if (dev->time_wrap)
+		dev->time_wrap_offset = dev->time_wrap - dev->cap_stream_start;
+	else
+		dev->time_wrap_offset = 0;
+	vivid_cap_update_frame_period(dev);
+
+	for (;;) {
+		try_to_freeze();
+		if (kthread_should_stop())
+			break;
+
+		if (!mutex_trylock(&dev->mutex)) {
+			schedule();
+			continue;
+		}
+
+		cur_jiffies = jiffies;
+		if (dev->cap_seq_resync) {
+			dev->jiffies_vid_cap = cur_jiffies;
+			dev->cap_seq_offset = dev->cap_seq_count + 1;
+			dev->cap_seq_count = 0;
+			dev->cap_stream_start += dev->cap_frame_period *
+						 dev->cap_seq_offset;
+			vivid_cap_update_frame_period(dev);
+			dev->cap_seq_resync = false;
+		}
+		numerator = dev->timeperframe_vid_cap.numerator;
+		denominator = dev->timeperframe_vid_cap.denominator;
+
+		if (dev->field_cap == V4L2_FIELD_ALTERNATE)
+			denominator *= 2;
+
+		/* Calculate the number of jiffies since we started streaming */
+		jiffies_since_start = cur_jiffies - dev->jiffies_vid_cap;
+		/* Get the number of buffers streamed since the start */
+		buffers_since_start = (u64)jiffies_since_start * denominator +
+				      (HZ * numerator) / 2;
+		do_div(buffers_since_start, HZ * numerator);
+
+		/*
+		 * After more than 0xf0000000 (rounded down to a multiple of
+		 * 'jiffies-per-day' to ease jiffies_to_msecs calculation)
+		 * jiffies have passed since we started streaming reset the
+		 * counters and keep track of the sequence offset.
+		 */
+		if (jiffies_since_start > JIFFIES_RESYNC) {
+			dev->jiffies_vid_cap = cur_jiffies;
+			dev->cap_seq_offset = buffers_since_start;
+			buffers_since_start = 0;
+		}
+		dropped_bufs = buffers_since_start + dev->cap_seq_offset - dev->cap_seq_count;
+		dev->cap_seq_count = buffers_since_start + dev->cap_seq_offset;
+		dev->vid_cap_seq_count = dev->cap_seq_count - dev->vid_cap_seq_start;
+		dev->vbi_cap_seq_count = dev->cap_seq_count - dev->vbi_cap_seq_start;
+		dev->meta_cap_seq_count = dev->cap_seq_count - dev->meta_cap_seq_start;
+
+		vivid_thread_vid_cap_tick(dev, dropped_bufs);
+
+		/*
+		 * Calculate the number of 'numerators' streamed since we started,
+		 * including the current buffer.
+		 */
+		numerators_since_start = ++buffers_since_start * numerator;
+
+		/* And the number of jiffies since we started */
+		jiffies_since_start = jiffies - dev->jiffies_vid_cap;
+
+		mutex_unlock(&dev->mutex);
+
+		/*
+		 * Calculate when that next buffer is supposed to start
+		 * in jiffies since we started streaming.
+		 */
+		next_jiffies_since_start = numerators_since_start * HZ +
+					   denominator / 2;
+		do_div(next_jiffies_since_start, denominator);
+		/* If it is in the past, then just schedule asap */
+		if (next_jiffies_since_start < jiffies_since_start)
+			next_jiffies_since_start = jiffies_since_start;
+
+		wait_jiffies = next_jiffies_since_start - jiffies_since_start;
+		if (!time_is_after_jiffies(cur_jiffies + wait_jiffies))
+			continue;
+
+		wait_queue_head_t wait;
+
+		init_waitqueue_head(&wait);
+		wait_event_interruptible_timeout(wait, kthread_should_stop(),
+					cur_jiffies + wait_jiffies - jiffies);
+	}
+	dprintk(dev, 1, "Video Capture Thread End\n");
+	return 0;
+}
+
+static void vivid_grab_controls(struct vivid_dev *dev, bool grab)
+{
+	v4l2_ctrl_grab(dev->ctrl_has_crop_cap, grab);
+	v4l2_ctrl_grab(dev->ctrl_has_compose_cap, grab);
+	v4l2_ctrl_grab(dev->ctrl_has_scaler_cap, grab);
+}
+
+int vivid_start_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming)
+{
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (dev->kthread_vid_cap) {
+		u32 seq_count = dev->cap_seq_count + dev->seq_wrap * 128;
+
+		if (pstreaming == &dev->vid_cap_streaming)
+			dev->vid_cap_seq_start = seq_count;
+		else if (pstreaming == &dev->vbi_cap_streaming)
+			dev->vbi_cap_seq_start = seq_count;
+		else
+			dev->meta_cap_seq_start = seq_count;
+		*pstreaming = true;
+		return 0;
+	}
+
+	/* Resets frame counters */
+	tpg_init_mv_count(&dev->tpg);
+
+	dev->vid_cap_seq_start = dev->seq_wrap * 128;
+	dev->vbi_cap_seq_start = dev->seq_wrap * 128;
+	dev->meta_cap_seq_start = dev->seq_wrap * 128;
+
+	dev->kthread_vid_cap = kthread_run(vivid_thread_vid_cap, dev,
+			"%s-vid-cap", dev->v4l2_dev.name);
+
+	if (IS_ERR(dev->kthread_vid_cap)) {
+		int err = PTR_ERR(dev->kthread_vid_cap);
+
+		dev->kthread_vid_cap = NULL;
+		v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n");
+		return err;
+	}
+	*pstreaming = true;
+	vivid_grab_controls(dev, true);
+
+	dprintk(dev, 1, "returning from %s\n", __func__);
+	return 0;
+}
+
+void vivid_stop_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming)
+{
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (dev->kthread_vid_cap == NULL)
+		return;
+
+	*pstreaming = false;
+	if (pstreaming == &dev->vid_cap_streaming) {
+		/* Release all active buffers */
+		while (!list_empty(&dev->vid_cap_active)) {
+			struct vivid_buffer *buf;
+
+			buf = list_entry(dev->vid_cap_active.next,
+					 struct vivid_buffer, list);
+			list_del(&buf->list);
+			v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req,
+						   &dev->ctrl_hdl_vid_cap);
+			vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+			dprintk(dev, 2, "vid_cap buffer %d done\n",
+				buf->vb.vb2_buf.index);
+		}
+	}
+
+	if (pstreaming == &dev->vbi_cap_streaming) {
+		while (!list_empty(&dev->vbi_cap_active)) {
+			struct vivid_buffer *buf;
+
+			buf = list_entry(dev->vbi_cap_active.next,
+					 struct vivid_buffer, list);
+			list_del(&buf->list);
+			v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req,
+						   &dev->ctrl_hdl_vbi_cap);
+			vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+			dprintk(dev, 2, "vbi_cap buffer %d done\n",
+				buf->vb.vb2_buf.index);
+		}
+	}
+
+	if (pstreaming == &dev->meta_cap_streaming) {
+		while (!list_empty(&dev->meta_cap_active)) {
+			struct vivid_buffer *buf;
+
+			buf = list_entry(dev->meta_cap_active.next,
+					 struct vivid_buffer, list);
+			list_del(&buf->list);
+			v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req,
+						   &dev->ctrl_hdl_meta_cap);
+			vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+			dprintk(dev, 2, "meta_cap buffer %d done\n",
+				buf->vb.vb2_buf.index);
+		}
+	}
+
+	if (dev->vid_cap_streaming || dev->vbi_cap_streaming ||
+	    dev->meta_cap_streaming)
+		return;
+
+	/* shutdown control thread */
+	vivid_grab_controls(dev, false);
+	kthread_stop(dev->kthread_vid_cap);
+	dev->kthread_vid_cap = NULL;
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-cap.h b/drivers/media/test-drivers/vivid/vivid-kthread-cap.h
new file mode 100644
index 000000000..0f4301530
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-kthread-cap.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-kthread-cap.h - video/vbi capture thread support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_KTHREAD_CAP_H_
+#define _VIVID_KTHREAD_CAP_H_
+
+int vivid_start_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming);
+void vivid_stop_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-out.c b/drivers/media/test-drivers/vivid/vivid-kthread-out.c
new file mode 100644
index 000000000..015a7b166
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-kthread-out.c
@@ -0,0 +1,362 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-kthread-out.h - video/vbi output thread support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/font.h>
+#include <linux/mutex.h>
+#include <linux/videodev2.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+#include <linux/random.h>
+#include <linux/v4l2-dv-timings.h>
+#include <linux/jiffies.h>
+#include <asm/div64.h>
+#include <media/videobuf2-vmalloc.h>
+#include <media/v4l2-dv-timings.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-event.h>
+
+#include "vivid-core.h"
+#include "vivid-vid-common.h"
+#include "vivid-vid-cap.h"
+#include "vivid-vid-out.h"
+#include "vivid-radio-common.h"
+#include "vivid-radio-rx.h"
+#include "vivid-radio-tx.h"
+#include "vivid-sdr-cap.h"
+#include "vivid-vbi-cap.h"
+#include "vivid-vbi-out.h"
+#include "vivid-osd.h"
+#include "vivid-ctrls.h"
+#include "vivid-kthread-out.h"
+#include "vivid-meta-out.h"
+
+static void vivid_thread_vid_out_tick(struct vivid_dev *dev)
+{
+	struct vivid_buffer *vid_out_buf = NULL;
+	struct vivid_buffer *vbi_out_buf = NULL;
+	struct vivid_buffer *meta_out_buf = NULL;
+
+	dprintk(dev, 1, "Video Output Thread Tick\n");
+
+	/* Drop a certain percentage of buffers. */
+	if (dev->perc_dropped_buffers &&
+	    get_random_u32_below(100) < dev->perc_dropped_buffers)
+		return;
+
+	spin_lock(&dev->slock);
+	/*
+	 * Only dequeue buffer if there is at least one more pending.
+	 * This makes video loopback possible.
+	 */
+	if (!list_empty(&dev->vid_out_active) &&
+	    !list_is_singular(&dev->vid_out_active)) {
+		vid_out_buf = list_entry(dev->vid_out_active.next,
+					 struct vivid_buffer, list);
+		list_del(&vid_out_buf->list);
+	}
+	if (!list_empty(&dev->vbi_out_active) &&
+	    (dev->field_out != V4L2_FIELD_ALTERNATE ||
+	     (dev->vbi_out_seq_count & 1))) {
+		vbi_out_buf = list_entry(dev->vbi_out_active.next,
+					 struct vivid_buffer, list);
+		list_del(&vbi_out_buf->list);
+	}
+	if (!list_empty(&dev->meta_out_active)) {
+		meta_out_buf = list_entry(dev->meta_out_active.next,
+					  struct vivid_buffer, list);
+		list_del(&meta_out_buf->list);
+	}
+	spin_unlock(&dev->slock);
+
+	if (!vid_out_buf && !vbi_out_buf && !meta_out_buf)
+		return;
+
+	if (vid_out_buf) {
+		v4l2_ctrl_request_setup(vid_out_buf->vb.vb2_buf.req_obj.req,
+					&dev->ctrl_hdl_vid_out);
+		v4l2_ctrl_request_complete(vid_out_buf->vb.vb2_buf.req_obj.req,
+					   &dev->ctrl_hdl_vid_out);
+		vid_out_buf->vb.sequence = dev->vid_out_seq_count;
+		if (dev->field_out == V4L2_FIELD_ALTERNATE) {
+			/*
+			 * The sequence counter counts frames, not fields.
+			 * So divide by two.
+			 */
+			vid_out_buf->vb.sequence /= 2;
+		}
+		vid_out_buf->vb.vb2_buf.timestamp =
+			ktime_get_ns() + dev->time_wrap_offset;
+		vb2_buffer_done(&vid_out_buf->vb.vb2_buf, dev->dqbuf_error ?
+				VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
+		dprintk(dev, 2, "vid_out buffer %d done\n",
+			vid_out_buf->vb.vb2_buf.index);
+	}
+
+	if (vbi_out_buf) {
+		v4l2_ctrl_request_setup(vbi_out_buf->vb.vb2_buf.req_obj.req,
+					&dev->ctrl_hdl_vbi_out);
+		v4l2_ctrl_request_complete(vbi_out_buf->vb.vb2_buf.req_obj.req,
+					   &dev->ctrl_hdl_vbi_out);
+		if (dev->stream_sliced_vbi_out)
+			vivid_sliced_vbi_out_process(dev, vbi_out_buf);
+
+		vbi_out_buf->vb.sequence = dev->vbi_out_seq_count;
+		vbi_out_buf->vb.vb2_buf.timestamp =
+			ktime_get_ns() + dev->time_wrap_offset;
+		vb2_buffer_done(&vbi_out_buf->vb.vb2_buf, dev->dqbuf_error ?
+				VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
+		dprintk(dev, 2, "vbi_out buffer %d done\n",
+			vbi_out_buf->vb.vb2_buf.index);
+	}
+	if (meta_out_buf) {
+		v4l2_ctrl_request_setup(meta_out_buf->vb.vb2_buf.req_obj.req,
+					&dev->ctrl_hdl_meta_out);
+		v4l2_ctrl_request_complete(meta_out_buf->vb.vb2_buf.req_obj.req,
+					   &dev->ctrl_hdl_meta_out);
+		vivid_meta_out_process(dev, meta_out_buf);
+		meta_out_buf->vb.sequence = dev->meta_out_seq_count;
+		meta_out_buf->vb.vb2_buf.timestamp =
+			ktime_get_ns() + dev->time_wrap_offset;
+		vb2_buffer_done(&meta_out_buf->vb.vb2_buf, dev->dqbuf_error ?
+				VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
+		dprintk(dev, 2, "meta_out buffer %d done\n",
+			meta_out_buf->vb.vb2_buf.index);
+	}
+
+	dev->dqbuf_error = false;
+}
+
+static int vivid_thread_vid_out(void *data)
+{
+	struct vivid_dev *dev = data;
+	u64 numerators_since_start;
+	u64 buffers_since_start;
+	u64 next_jiffies_since_start;
+	unsigned long jiffies_since_start;
+	unsigned long cur_jiffies;
+	unsigned wait_jiffies;
+	unsigned numerator;
+	unsigned denominator;
+
+	dprintk(dev, 1, "Video Output Thread Start\n");
+
+	set_freezable();
+
+	/* Resets frame counters */
+	dev->out_seq_offset = 0;
+	dev->out_seq_count = 0;
+	dev->jiffies_vid_out = jiffies;
+	dev->out_seq_resync = false;
+	if (dev->time_wrap)
+		dev->time_wrap_offset = dev->time_wrap - ktime_get_ns();
+	else
+		dev->time_wrap_offset = 0;
+
+	for (;;) {
+		try_to_freeze();
+		if (kthread_should_stop())
+			break;
+
+		if (!mutex_trylock(&dev->mutex)) {
+			schedule();
+			continue;
+		}
+
+		cur_jiffies = jiffies;
+		if (dev->out_seq_resync) {
+			dev->jiffies_vid_out = cur_jiffies;
+			dev->out_seq_offset = dev->out_seq_count + 1;
+			dev->out_seq_count = 0;
+			dev->out_seq_resync = false;
+		}
+		numerator = dev->timeperframe_vid_out.numerator;
+		denominator = dev->timeperframe_vid_out.denominator;
+
+		if (dev->field_out == V4L2_FIELD_ALTERNATE)
+			denominator *= 2;
+
+		/* Calculate the number of jiffies since we started streaming */
+		jiffies_since_start = cur_jiffies - dev->jiffies_vid_out;
+		/* Get the number of buffers streamed since the start */
+		buffers_since_start = (u64)jiffies_since_start * denominator +
+				      (HZ * numerator) / 2;
+		do_div(buffers_since_start, HZ * numerator);
+
+		/*
+		 * After more than 0xf0000000 (rounded down to a multiple of
+		 * 'jiffies-per-day' to ease jiffies_to_msecs calculation)
+		 * jiffies have passed since we started streaming reset the
+		 * counters and keep track of the sequence offset.
+		 */
+		if (jiffies_since_start > JIFFIES_RESYNC) {
+			dev->jiffies_vid_out = cur_jiffies;
+			dev->out_seq_offset = buffers_since_start;
+			buffers_since_start = 0;
+		}
+		dev->out_seq_count = buffers_since_start + dev->out_seq_offset;
+		dev->vid_out_seq_count = dev->out_seq_count - dev->vid_out_seq_start;
+		dev->vbi_out_seq_count = dev->out_seq_count - dev->vbi_out_seq_start;
+		dev->meta_out_seq_count = dev->out_seq_count - dev->meta_out_seq_start;
+
+		vivid_thread_vid_out_tick(dev);
+		mutex_unlock(&dev->mutex);
+
+		/*
+		 * Calculate the number of 'numerators' streamed since we started,
+		 * not including the current buffer.
+		 */
+		numerators_since_start = buffers_since_start * numerator;
+
+		/* And the number of jiffies since we started */
+		jiffies_since_start = jiffies - dev->jiffies_vid_out;
+
+		/* Increase by the 'numerator' of one buffer */
+		numerators_since_start += numerator;
+		/*
+		 * Calculate when that next buffer is supposed to start
+		 * in jiffies since we started streaming.
+		 */
+		next_jiffies_since_start = numerators_since_start * HZ +
+					   denominator / 2;
+		do_div(next_jiffies_since_start, denominator);
+		/* If it is in the past, then just schedule asap */
+		if (next_jiffies_since_start < jiffies_since_start)
+			next_jiffies_since_start = jiffies_since_start;
+
+		wait_jiffies = next_jiffies_since_start - jiffies_since_start;
+		if (!time_is_after_jiffies(cur_jiffies + wait_jiffies))
+			continue;
+
+		wait_queue_head_t wait;
+
+		init_waitqueue_head(&wait);
+		wait_event_interruptible_timeout(wait, kthread_should_stop(),
+					cur_jiffies + wait_jiffies - jiffies);
+	}
+	dprintk(dev, 1, "Video Output Thread End\n");
+	return 0;
+}
+
+static void vivid_grab_controls(struct vivid_dev *dev, bool grab)
+{
+	v4l2_ctrl_grab(dev->ctrl_has_crop_out, grab);
+	v4l2_ctrl_grab(dev->ctrl_has_compose_out, grab);
+	v4l2_ctrl_grab(dev->ctrl_has_scaler_out, grab);
+	v4l2_ctrl_grab(dev->ctrl_tx_mode, grab);
+	v4l2_ctrl_grab(dev->ctrl_tx_rgb_range, grab);
+}
+
+int vivid_start_generating_vid_out(struct vivid_dev *dev, bool *pstreaming)
+{
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (dev->kthread_vid_out) {
+		u32 seq_count = dev->out_seq_count + dev->seq_wrap * 128;
+
+		if (pstreaming == &dev->vid_out_streaming)
+			dev->vid_out_seq_start = seq_count;
+		else if (pstreaming == &dev->vbi_out_streaming)
+			dev->vbi_out_seq_start = seq_count;
+		else
+			dev->meta_out_seq_start = seq_count;
+		*pstreaming = true;
+		return 0;
+	}
+
+	/* Resets frame counters */
+	dev->jiffies_vid_out = jiffies;
+	dev->vid_out_seq_start = dev->seq_wrap * 128;
+	dev->vbi_out_seq_start = dev->seq_wrap * 128;
+	dev->meta_out_seq_start = dev->seq_wrap * 128;
+
+	dev->kthread_vid_out = kthread_run(vivid_thread_vid_out, dev,
+			"%s-vid-out", dev->v4l2_dev.name);
+
+	if (IS_ERR(dev->kthread_vid_out)) {
+		int err = PTR_ERR(dev->kthread_vid_out);
+
+		dev->kthread_vid_out = NULL;
+		v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n");
+		return err;
+	}
+	*pstreaming = true;
+	vivid_grab_controls(dev, true);
+
+	dprintk(dev, 1, "returning from %s\n", __func__);
+	return 0;
+}
+
+void vivid_stop_generating_vid_out(struct vivid_dev *dev, bool *pstreaming)
+{
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (dev->kthread_vid_out == NULL)
+		return;
+
+	*pstreaming = false;
+	if (pstreaming == &dev->vid_out_streaming) {
+		/* Release all active buffers */
+		while (!list_empty(&dev->vid_out_active)) {
+			struct vivid_buffer *buf;
+
+			buf = list_entry(dev->vid_out_active.next,
+					 struct vivid_buffer, list);
+			list_del(&buf->list);
+			v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req,
+						   &dev->ctrl_hdl_vid_out);
+			vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+			dprintk(dev, 2, "vid_out buffer %d done\n",
+				buf->vb.vb2_buf.index);
+		}
+	}
+
+	if (pstreaming == &dev->vbi_out_streaming) {
+		while (!list_empty(&dev->vbi_out_active)) {
+			struct vivid_buffer *buf;
+
+			buf = list_entry(dev->vbi_out_active.next,
+					 struct vivid_buffer, list);
+			list_del(&buf->list);
+			v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req,
+						   &dev->ctrl_hdl_vbi_out);
+			vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+			dprintk(dev, 2, "vbi_out buffer %d done\n",
+				buf->vb.vb2_buf.index);
+		}
+	}
+
+	if (pstreaming == &dev->meta_out_streaming) {
+		while (!list_empty(&dev->meta_out_active)) {
+			struct vivid_buffer *buf;
+
+			buf = list_entry(dev->meta_out_active.next,
+					 struct vivid_buffer, list);
+			list_del(&buf->list);
+			v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req,
+						   &dev->ctrl_hdl_meta_out);
+			vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+			dprintk(dev, 2, "meta_out buffer %d done\n",
+				buf->vb.vb2_buf.index);
+		}
+	}
+
+	if (dev->vid_out_streaming || dev->vbi_out_streaming ||
+	    dev->meta_out_streaming)
+		return;
+
+	/* shutdown control thread */
+	vivid_grab_controls(dev, false);
+	kthread_stop(dev->kthread_vid_out);
+	dev->kthread_vid_out = NULL;
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-out.h b/drivers/media/test-drivers/vivid/vivid-kthread-out.h
new file mode 100644
index 000000000..d5bcf44bb
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-kthread-out.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-kthread-out.h - video/vbi output thread support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_KTHREAD_OUT_H_
+#define _VIVID_KTHREAD_OUT_H_
+
+int vivid_start_generating_vid_out(struct vivid_dev *dev, bool *pstreaming);
+void vivid_stop_generating_vid_out(struct vivid_dev *dev, bool *pstreaming);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-touch.c b/drivers/media/test-drivers/vivid/vivid-kthread-touch.c
new file mode 100644
index 000000000..c86268978
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-kthread-touch.c
@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-kthread-touch.c - touch capture thread support functions.
+ *
+ */
+
+#include <linux/freezer.h>
+#include <linux/jiffies.h>
+#include "vivid-core.h"
+#include "vivid-kthread-touch.h"
+#include "vivid-touch-cap.h"
+
+static noinline_for_stack void vivid_thread_tch_cap_tick(struct vivid_dev *dev,
+							 int dropped_bufs)
+{
+	struct vivid_buffer *tch_cap_buf = NULL;
+
+	spin_lock(&dev->slock);
+	if (!list_empty(&dev->touch_cap_active)) {
+		tch_cap_buf = list_entry(dev->touch_cap_active.next,
+					 struct vivid_buffer, list);
+		list_del(&tch_cap_buf->list);
+	}
+
+	spin_unlock(&dev->slock);
+
+	if (tch_cap_buf) {
+		v4l2_ctrl_request_setup(tch_cap_buf->vb.vb2_buf.req_obj.req,
+					&dev->ctrl_hdl_touch_cap);
+
+		vivid_fillbuff_tch(dev, tch_cap_buf);
+		v4l2_ctrl_request_complete(tch_cap_buf->vb.vb2_buf.req_obj.req,
+					   &dev->ctrl_hdl_touch_cap);
+		vb2_buffer_done(&tch_cap_buf->vb.vb2_buf, dev->dqbuf_error ?
+				VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
+		dprintk(dev, 2, "touch_cap buffer %d done\n",
+			tch_cap_buf->vb.vb2_buf.index);
+
+		tch_cap_buf->vb.vb2_buf.timestamp = ktime_get_ns() + dev->time_wrap_offset;
+	}
+	dev->dqbuf_error = false;
+}
+
+static int vivid_thread_touch_cap(void *data)
+{
+	struct vivid_dev *dev = data;
+	u64 numerators_since_start;
+	u64 buffers_since_start;
+	u64 next_jiffies_since_start;
+	unsigned long jiffies_since_start;
+	unsigned long cur_jiffies;
+	unsigned int wait_jiffies;
+	unsigned int numerator;
+	unsigned int denominator;
+	int dropped_bufs;
+
+	dprintk(dev, 1, "Touch Capture Thread Start\n");
+
+	set_freezable();
+
+	/* Resets frame counters */
+	dev->touch_cap_seq_offset = 0;
+	dev->touch_cap_seq_count = 0;
+	dev->touch_cap_seq_resync = false;
+	dev->jiffies_touch_cap = jiffies;
+	if (dev->time_wrap)
+		dev->time_wrap_offset = dev->time_wrap - ktime_get_ns();
+	else
+		dev->time_wrap_offset = 0;
+
+	for (;;) {
+		try_to_freeze();
+		if (kthread_should_stop())
+			break;
+
+		if (!mutex_trylock(&dev->mutex)) {
+			schedule();
+			continue;
+		}
+		cur_jiffies = jiffies;
+		if (dev->touch_cap_seq_resync) {
+			dev->jiffies_touch_cap = cur_jiffies;
+			dev->touch_cap_seq_offset = dev->touch_cap_seq_count + 1;
+			dev->touch_cap_seq_count = 0;
+			dev->cap_seq_resync = false;
+		}
+		denominator = dev->timeperframe_tch_cap.denominator;
+		numerator = dev->timeperframe_tch_cap.numerator;
+
+		/* Calculate the number of jiffies since we started streaming */
+		jiffies_since_start = cur_jiffies - dev->jiffies_touch_cap;
+		/* Get the number of buffers streamed since the start */
+		buffers_since_start = (u64)jiffies_since_start * denominator +
+				      (HZ * numerator) / 2;
+		do_div(buffers_since_start, HZ * numerator);
+
+		/*
+		 * After more than 0xf0000000 (rounded down to a multiple of
+		 * 'jiffies-per-day' to ease jiffies_to_msecs calculation)
+		 * jiffies have passed since we started streaming reset the
+		 * counters and keep track of the sequence offset.
+		 */
+		if (jiffies_since_start > JIFFIES_RESYNC) {
+			dev->jiffies_touch_cap = cur_jiffies;
+			dev->cap_seq_offset = buffers_since_start;
+			buffers_since_start = 0;
+		}
+		dropped_bufs = buffers_since_start + dev->touch_cap_seq_offset - dev->touch_cap_seq_count;
+		dev->touch_cap_seq_count = buffers_since_start + dev->touch_cap_seq_offset;
+		dev->touch_cap_with_seq_wrap_count =
+			dev->touch_cap_seq_count - dev->touch_cap_seq_start;
+
+		vivid_thread_tch_cap_tick(dev, dropped_bufs);
+
+		/*
+		 * Calculate the number of 'numerators' streamed
+		 * since we started, including the current buffer.
+		 */
+		numerators_since_start = ++buffers_since_start * numerator;
+
+		/* And the number of jiffies since we started */
+		jiffies_since_start = jiffies - dev->jiffies_touch_cap;
+
+		mutex_unlock(&dev->mutex);
+
+		/*
+		 * Calculate when that next buffer is supposed to start
+		 * in jiffies since we started streaming.
+		 */
+		next_jiffies_since_start = numerators_since_start * HZ +
+					   denominator / 2;
+		do_div(next_jiffies_since_start, denominator);
+		/* If it is in the past, then just schedule asap */
+		if (next_jiffies_since_start < jiffies_since_start)
+			next_jiffies_since_start = jiffies_since_start;
+
+		wait_jiffies = next_jiffies_since_start - jiffies_since_start;
+		if (!time_is_after_jiffies(cur_jiffies + wait_jiffies))
+			continue;
+
+		wait_queue_head_t wait;
+
+		init_waitqueue_head(&wait);
+		wait_event_interruptible_timeout(wait, kthread_should_stop(),
+					cur_jiffies + wait_jiffies - jiffies);
+	}
+	dprintk(dev, 1, "Touch Capture Thread End\n");
+	return 0;
+}
+
+int vivid_start_generating_touch_cap(struct vivid_dev *dev)
+{
+	if (dev->kthread_touch_cap) {
+		dev->touch_cap_streaming = true;
+		return 0;
+	}
+
+	dev->touch_cap_seq_start = dev->seq_wrap * 128;
+	dev->kthread_touch_cap = kthread_run(vivid_thread_touch_cap, dev,
+					     "%s-tch-cap", dev->v4l2_dev.name);
+
+	if (IS_ERR(dev->kthread_touch_cap)) {
+		int err = PTR_ERR(dev->kthread_touch_cap);
+
+		dev->kthread_touch_cap = NULL;
+		v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n");
+		return err;
+	}
+	dev->touch_cap_streaming = true;
+	dprintk(dev, 1, "returning from %s\n", __func__);
+	return 0;
+}
+
+void vivid_stop_generating_touch_cap(struct vivid_dev *dev)
+{
+	if (!dev->kthread_touch_cap)
+		return;
+
+	dev->touch_cap_streaming = false;
+
+	while (!list_empty(&dev->touch_cap_active)) {
+		struct vivid_buffer *buf;
+
+		buf = list_entry(dev->touch_cap_active.next,
+				 struct vivid_buffer, list);
+		list_del(&buf->list);
+		v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req,
+					   &dev->ctrl_hdl_touch_cap);
+		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+		dprintk(dev, 2, "touch_cap buffer %d done\n",
+			buf->vb.vb2_buf.index);
+	}
+
+	kthread_stop(dev->kthread_touch_cap);
+	dev->kthread_touch_cap = NULL;
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-touch.h b/drivers/media/test-drivers/vivid/vivid-kthread-touch.h
new file mode 100644
index 000000000..ecf79b462
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-kthread-touch.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-kthread-cap.h - video/vbi capture thread support functions.
+ *
+ */
+
+#ifndef _VIVID_KTHREAD_CAP_H_
+#define _VIVID_KTHREAD_CAP_H_
+
+int vivid_start_generating_touch_cap(struct vivid_dev *dev);
+void vivid_stop_generating_touch_cap(struct vivid_dev *dev);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-cap.c b/drivers/media/test-drivers/vivid/vivid-meta-cap.c
new file mode 100644
index 000000000..c7aaecc0b
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-meta-cap.c
@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-meta-cap.c - meta capture support functions.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <linux/usb/video.h>
+
+#include "vivid-core.h"
+#include "vivid-kthread-cap.h"
+#include "vivid-meta-cap.h"
+
+static int meta_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
+				unsigned int *nplanes, unsigned int sizes[],
+				struct device *alloc_devs[])
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	unsigned int size =  sizeof(struct vivid_uvc_meta_buf);
+
+	if (!vivid_is_webcam(dev))
+		return -EINVAL;
+
+	if (*nplanes) {
+		if (sizes[0] < size)
+			return -EINVAL;
+	} else {
+		sizes[0] = size;
+	}
+
+	*nplanes = 1;
+	return 0;
+}
+
+static int meta_cap_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	unsigned int size = sizeof(struct vivid_uvc_meta_buf);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (dev->buf_prepare_error) {
+		/*
+		 * Error injection: test what happens if buf_prepare() returns
+		 * an error.
+		 */
+		dev->buf_prepare_error = false;
+		return -EINVAL;
+	}
+	if (vb2_plane_size(vb, 0) < size) {
+		dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
+			__func__, vb2_plane_size(vb, 0), size);
+		return -EINVAL;
+	}
+	vb2_set_plane_payload(vb, 0, size);
+
+	return 0;
+}
+
+static void meta_cap_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	spin_lock(&dev->slock);
+	list_add_tail(&buf->list, &dev->meta_cap_active);
+	spin_unlock(&dev->slock);
+}
+
+static int meta_cap_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	int err;
+
+	dprintk(dev, 1, "%s\n", __func__);
+	dev->meta_cap_seq_count = 0;
+	if (dev->start_streaming_error) {
+		dev->start_streaming_error = false;
+		err = -EINVAL;
+	} else {
+		err = vivid_start_generating_vid_cap(dev,
+						     &dev->meta_cap_streaming);
+	}
+	if (err) {
+		struct vivid_buffer *buf, *tmp;
+
+		list_for_each_entry_safe(buf, tmp,
+					 &dev->meta_cap_active, list) {
+			list_del(&buf->list);
+			vb2_buffer_done(&buf->vb.vb2_buf,
+					VB2_BUF_STATE_QUEUED);
+		}
+	}
+	return err;
+}
+
+/* abort streaming and wait for last buffer */
+static void meta_cap_stop_streaming(struct vb2_queue *vq)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+
+	dprintk(dev, 1, "%s\n", __func__);
+	vivid_stop_generating_vid_cap(dev, &dev->meta_cap_streaming);
+}
+
+static void meta_cap_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_meta_cap);
+}
+
+const struct vb2_ops vivid_meta_cap_qops = {
+	.queue_setup		= meta_cap_queue_setup,
+	.buf_prepare		= meta_cap_buf_prepare,
+	.buf_queue		= meta_cap_buf_queue,
+	.start_streaming	= meta_cap_start_streaming,
+	.stop_streaming		= meta_cap_stop_streaming,
+	.buf_request_complete	= meta_cap_buf_request_complete,
+};
+
+int vidioc_enum_fmt_meta_cap(struct file *file, void  *priv,
+			     struct v4l2_fmtdesc *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_webcam(dev))
+		return -EINVAL;
+
+	if (f->index > 0)
+		return -EINVAL;
+
+	f->type = V4L2_BUF_TYPE_META_CAPTURE;
+	f->pixelformat = V4L2_META_FMT_UVC;
+	return 0;
+}
+
+int vidioc_g_fmt_meta_cap(struct file *file, void *priv,
+			  struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_meta_format *meta = &f->fmt.meta;
+
+	if (!vivid_is_webcam(dev) || !dev->has_meta_cap)
+		return -EINVAL;
+
+	meta->dataformat = V4L2_META_FMT_UVC;
+	meta->buffersize = sizeof(struct vivid_uvc_meta_buf);
+	return 0;
+}
+
+void vivid_meta_cap_fillbuff(struct vivid_dev *dev,
+			     struct vivid_buffer *buf, u64 soe)
+{
+	struct vivid_uvc_meta_buf *meta = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+	int buf_off = 0;
+
+	buf->vb.sequence = dev->meta_cap_seq_count;
+	if (dev->field_cap == V4L2_FIELD_ALTERNATE)
+		buf->vb.sequence /= 2;
+	memset(meta, 1, vb2_plane_size(&buf->vb.vb2_buf, 0));
+
+	meta->ns = ktime_get_ns();
+	meta->sof = buf->vb.sequence * 30;
+	meta->length = sizeof(*meta) - offsetof(struct vivid_uvc_meta_buf, length);
+	meta->flags = UVC_STREAM_EOH | UVC_STREAM_EOF;
+
+	if ((buf->vb.sequence % 2) == 0)
+		meta->flags |= UVC_STREAM_FID;
+
+	dprintk(dev, 2, "%s ns:%llu sof:%4d len:%u flags: 0x%02x",
+		__func__, meta->ns, meta->sof, meta->length, meta->flags);
+	if (dev->meta_pts) {
+		meta->flags |= UVC_STREAM_PTS;
+		meta->buf[0] = div_u64(soe, VIVID_META_CLOCK_UNIT);
+		buf_off = 4;
+		dprintk(dev, 2, " pts: %u\n", *(__u32 *)(meta->buf));
+	}
+
+	if (dev->meta_scr) {
+		meta->flags |= UVC_STREAM_SCR;
+		meta->buf[buf_off] = div_u64((soe + dev->cap_frame_eof_offset),
+					     VIVID_META_CLOCK_UNIT);
+
+		meta->buf[buf_off + 4] = (buf->vb.sequence * 30) % 1000;
+		dprintk(dev, 2, " stc: %u, sof counter: %u\n",
+			*(__u32 *)(meta->buf + buf_off),
+			*(__u16 *)(meta->buf + buf_off + 4));
+	}
+	dprintk(dev, 2, "\n");
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-cap.h b/drivers/media/test-drivers/vivid/vivid-meta-cap.h
new file mode 100644
index 000000000..4670d00d1
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-meta-cap.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-meta-cap.h - meta capture support functions.
+ */
+#ifndef _VIVID_META_CAP_H_
+#define _VIVID_META_CAP_H_
+
+#define VIVID_META_CLOCK_UNIT	10 /* 100 MHz */
+
+struct vivid_uvc_meta_buf {
+	__u64 ns;
+	__u16 sof;
+	__u8 length;
+	__u8 flags;
+	__u8 buf[10]; /* PTS(4)+STC(4)+SOF(2) */
+} __packed;
+
+void vivid_meta_cap_fillbuff(struct vivid_dev *dev,
+			     struct vivid_buffer *buf, u64 soe);
+
+int vidioc_enum_fmt_meta_cap(struct file *file, void  *priv,
+			     struct v4l2_fmtdesc *f);
+
+int vidioc_g_fmt_meta_cap(struct file *file, void *priv,
+			  struct v4l2_format *f);
+
+extern const struct vb2_ops vivid_meta_cap_qops;
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-out.c b/drivers/media/test-drivers/vivid/vivid-meta-out.c
new file mode 100644
index 000000000..ca913b808
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-meta-out.c
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-meta-out.c - meta output support functions.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <linux/usb/video.h>
+
+#include "vivid-core.h"
+#include "vivid-kthread-out.h"
+#include "vivid-meta-out.h"
+
+static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
+				unsigned int *nplanes, unsigned int sizes[],
+				struct device *alloc_devs[])
+{
+	unsigned int size =  sizeof(struct vivid_meta_out_buf);
+
+	if (*nplanes) {
+		if (sizes[0] < size)
+			return -EINVAL;
+	} else {
+		sizes[0] = size;
+	}
+
+	*nplanes = 1;
+	return 0;
+}
+
+static int meta_out_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	unsigned int size = sizeof(struct vivid_meta_out_buf);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (dev->buf_prepare_error) {
+		/*
+		 * Error injection: test what happens if buf_prepare() returns
+		 * an error.
+		 */
+		dev->buf_prepare_error = false;
+		return -EINVAL;
+	}
+	if (vb2_plane_size(vb, 0) < size) {
+		dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
+			__func__, vb2_plane_size(vb, 0), size);
+		return -EINVAL;
+	}
+	vb2_set_plane_payload(vb, 0, size);
+
+	return 0;
+}
+
+static void meta_out_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	spin_lock(&dev->slock);
+	list_add_tail(&buf->list, &dev->meta_out_active);
+	spin_unlock(&dev->slock);
+}
+
+static int meta_out_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	int err;
+
+	dprintk(dev, 1, "%s\n", __func__);
+	dev->meta_out_seq_count = 0;
+	if (dev->start_streaming_error) {
+		dev->start_streaming_error = false;
+		err = -EINVAL;
+	} else {
+		err = vivid_start_generating_vid_out(dev,
+						     &dev->meta_out_streaming);
+	}
+	if (err) {
+		struct vivid_buffer *buf, *tmp;
+
+		list_for_each_entry_safe(buf, tmp,
+					 &dev->meta_out_active, list) {
+			list_del(&buf->list);
+			vb2_buffer_done(&buf->vb.vb2_buf,
+					VB2_BUF_STATE_QUEUED);
+		}
+	}
+	return err;
+}
+
+/* abort streaming and wait for last buffer */
+static void meta_out_stop_streaming(struct vb2_queue *vq)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+
+	dprintk(dev, 1, "%s\n", __func__);
+	vivid_stop_generating_vid_out(dev, &dev->meta_out_streaming);
+}
+
+static void meta_out_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_meta_out);
+}
+
+const struct vb2_ops vivid_meta_out_qops = {
+	.queue_setup            = meta_out_queue_setup,
+	.buf_prepare            = meta_out_buf_prepare,
+	.buf_queue              = meta_out_buf_queue,
+	.start_streaming        = meta_out_start_streaming,
+	.stop_streaming         = meta_out_stop_streaming,
+	.buf_request_complete   = meta_out_buf_request_complete,
+};
+
+int vidioc_enum_fmt_meta_out(struct file *file, void  *priv,
+			     struct v4l2_fmtdesc *f)
+{
+	if (f->index > 0)
+		return -EINVAL;
+
+	f->type = V4L2_BUF_TYPE_META_OUTPUT;
+	f->pixelformat = V4L2_META_FMT_VIVID;
+	return 0;
+}
+
+int vidioc_g_fmt_meta_out(struct file *file, void *priv,
+			  struct v4l2_format *f)
+{
+	struct v4l2_meta_format *meta = &f->fmt.meta;
+
+	meta->dataformat = V4L2_META_FMT_VIVID;
+	meta->buffersize = sizeof(struct vivid_meta_out_buf);
+	return 0;
+}
+
+void vivid_meta_out_process(struct vivid_dev *dev,
+			    struct vivid_buffer *buf)
+{
+	struct vivid_meta_out_buf *meta = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+
+	if (dev->brightness) {
+		v4l2_ctrl_s_ctrl(dev->brightness, meta->brightness);
+		v4l2_ctrl_s_ctrl(dev->contrast, meta->contrast);
+		v4l2_ctrl_s_ctrl(dev->saturation, meta->saturation);
+		v4l2_ctrl_s_ctrl(dev->hue, meta->hue);
+	}
+
+	dprintk(dev, 2, " %s brightness %u contrast %u saturation %u hue %d\n",
+		__func__, meta->brightness, meta->contrast,
+		meta->saturation, meta->hue);
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-out.h b/drivers/media/test-drivers/vivid/vivid-meta-out.h
new file mode 100644
index 000000000..0c639b7c2
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-meta-out.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-meta-out.h - meta output support functions.
+ */
+#ifndef _VIVID_META_OUT_H_
+#define _VIVID_META_OUT_H_
+
+struct vivid_meta_out_buf {
+	u16	brightness;
+	u16	contrast;
+	u16	saturation;
+	s16	hue;
+};
+
+void vivid_meta_out_process(struct vivid_dev *dev, struct vivid_buffer *buf);
+int vidioc_enum_fmt_meta_out(struct file *file, void  *priv,
+			     struct v4l2_fmtdesc *f);
+int vidioc_g_fmt_meta_out(struct file *file, void *priv,
+			  struct v4l2_format *f);
+int vidioc_s_fmt_meta_out(struct file *file, void *priv,
+			  struct v4l2_format *f);
+
+extern const struct vb2_ops vivid_meta_out_qops;
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-osd.c b/drivers/media/test-drivers/vivid/vivid-osd.c
new file mode 100644
index 000000000..91ad9b314
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-osd.c
@@ -0,0 +1,401 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-osd.c - osd support for testing overlays.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/font.h>
+#include <linux/mutex.h>
+#include <linux/videodev2.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+#include <linux/fb.h>
+#include <media/videobuf2-vmalloc.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-common.h>
+
+#include "vivid-core.h"
+#include "vivid-osd.h"
+
+#define MAX_OSD_WIDTH  720
+#define MAX_OSD_HEIGHT 576
+
+/*
+ * Order: white, yellow, cyan, green, magenta, red, blue, black,
+ * and same again with the alpha bit set (if any)
+ */
+static const u16 rgb555[16] = {
+	0x7fff, 0x7fe0, 0x03ff, 0x03e0, 0x7c1f, 0x7c00, 0x001f, 0x0000,
+	0xffff, 0xffe0, 0x83ff, 0x83e0, 0xfc1f, 0xfc00, 0x801f, 0x8000
+};
+
+static const u16 rgb565[16] = {
+	0xffff, 0xffe0, 0x07ff, 0x07e0, 0xf81f, 0xf800, 0x001f, 0x0000,
+	0xffff, 0xffe0, 0x07ff, 0x07e0, 0xf81f, 0xf800, 0x001f, 0x0000
+};
+
+unsigned int vivid_fb_green_bits(struct vivid_dev *dev)
+{
+	return dev->fb_defined.green.length;
+}
+
+void vivid_fb_clear(struct vivid_dev *dev)
+{
+	void *p = dev->video_vbase;
+	const u16 *rgb = rgb555;
+	unsigned x, y;
+
+	if (vivid_fb_green_bits(dev) == 6)
+		rgb = rgb565;
+
+	for (y = 0; y < dev->display_height; y++) {
+		u16 *d = p;
+
+		for (x = 0; x < dev->display_width; x++)
+			d[x] = rgb[(y / 16 + x / 16) % 16];
+		p += dev->display_byte_stride;
+	}
+}
+
+/* --------------------------------------------------------------------- */
+
+static int vivid_fb_ioctl(struct fb_info *info, unsigned cmd, unsigned long arg)
+{
+	struct vivid_dev *dev = (struct vivid_dev *)info->par;
+
+	switch (cmd) {
+	case FBIOGET_VBLANK: {
+		struct fb_vblank vblank;
+
+		memset(&vblank, 0, sizeof(vblank));
+		vblank.flags = FB_VBLANK_HAVE_COUNT | FB_VBLANK_HAVE_VCOUNT |
+			FB_VBLANK_HAVE_VSYNC;
+		vblank.count = 0;
+		vblank.vcount = 0;
+		vblank.hcount = 0;
+		if (copy_to_user((void __user *)arg, &vblank, sizeof(vblank)))
+			return -EFAULT;
+		return 0;
+	}
+
+	default:
+		dprintk(dev, 1, "Unknown ioctl %08x\n", cmd);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/* Framebuffer device handling */
+
+static int vivid_fb_set_var(struct vivid_dev *dev, struct fb_var_screeninfo *var)
+{
+	dprintk(dev, 1, "vivid_fb_set_var\n");
+
+	if (var->bits_per_pixel != 16) {
+		dprintk(dev, 1, "vivid_fb_set_var - Invalid bpp\n");
+		return -EINVAL;
+	}
+	dev->display_byte_stride = var->xres * dev->bytes_per_pixel;
+
+	return 0;
+}
+
+static int vivid_fb_get_fix(struct vivid_dev *dev, struct fb_fix_screeninfo *fix)
+{
+	dprintk(dev, 1, "vivid_fb_get_fix\n");
+	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+	strscpy(fix->id, "vioverlay fb", sizeof(fix->id));
+	fix->smem_start = dev->video_pbase;
+	fix->smem_len = dev->video_buffer_size;
+	fix->type = FB_TYPE_PACKED_PIXELS;
+	fix->visual = FB_VISUAL_TRUECOLOR;
+	fix->xpanstep = 1;
+	fix->ypanstep = 1;
+	fix->ywrapstep = 0;
+	fix->line_length = dev->display_byte_stride;
+	fix->accel = FB_ACCEL_NONE;
+	return 0;
+}
+
+/* Check the requested display mode, returning -EINVAL if we can't
+   handle it. */
+
+static int _vivid_fb_check_var(struct fb_var_screeninfo *var, struct vivid_dev *dev)
+{
+	dprintk(dev, 1, "vivid_fb_check_var\n");
+
+	var->bits_per_pixel = 16;
+	if (var->green.length == 5) {
+		var->red.offset = 10;
+		var->red.length = 5;
+		var->green.offset = 5;
+		var->green.length = 5;
+		var->blue.offset = 0;
+		var->blue.length = 5;
+		var->transp.offset = 15;
+		var->transp.length = 1;
+	} else {
+		var->red.offset = 11;
+		var->red.length = 5;
+		var->green.offset = 5;
+		var->green.length = 6;
+		var->blue.offset = 0;
+		var->blue.length = 5;
+		var->transp.offset = 0;
+		var->transp.length = 0;
+	}
+	var->xoffset = var->yoffset = 0;
+	var->left_margin = var->upper_margin = 0;
+	var->nonstd = 0;
+
+	var->vmode &= ~FB_VMODE_MASK;
+	var->vmode |= FB_VMODE_NONINTERLACED;
+
+	/* Dummy values */
+	var->hsync_len = 24;
+	var->vsync_len = 2;
+	var->pixclock = 84316;
+	var->right_margin = 776;
+	var->lower_margin = 591;
+	return 0;
+}
+
+static int vivid_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+	struct vivid_dev *dev = (struct vivid_dev *) info->par;
+
+	dprintk(dev, 1, "vivid_fb_check_var\n");
+	return _vivid_fb_check_var(var, dev);
+}
+
+static int vivid_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+	return 0;
+}
+
+static int vivid_fb_set_par(struct fb_info *info)
+{
+	int rc = 0;
+	struct vivid_dev *dev = (struct vivid_dev *) info->par;
+
+	dprintk(dev, 1, "vivid_fb_set_par\n");
+
+	rc = vivid_fb_set_var(dev, &info->var);
+	vivid_fb_get_fix(dev, &info->fix);
+	return rc;
+}
+
+static int vivid_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
+				unsigned blue, unsigned transp,
+				struct fb_info *info)
+{
+	u32 color, *palette;
+
+	if (regno >= info->cmap.len)
+		return -EINVAL;
+
+	color = ((transp & 0xFF00) << 16) | ((red & 0xFF00) << 8) |
+		 (green & 0xFF00) | ((blue & 0xFF00) >> 8);
+	if (regno >= 16)
+		return -EINVAL;
+
+	palette = info->pseudo_palette;
+	if (info->var.bits_per_pixel == 16) {
+		switch (info->var.green.length) {
+		case 6:
+			color = (red & 0xf800) |
+				((green & 0xfc00) >> 5) |
+				((blue & 0xf800) >> 11);
+			break;
+		case 5:
+			color = ((red & 0xf800) >> 1) |
+				((green & 0xf800) >> 6) |
+				((blue & 0xf800) >> 11) |
+				(transp ? 0x8000 : 0);
+			break;
+		}
+	}
+	palette[regno] = color;
+	return 0;
+}
+
+/* We don't really support blanking. All this does is enable or
+   disable the OSD. */
+static int vivid_fb_blank(int blank_mode, struct fb_info *info)
+{
+	struct vivid_dev *dev = (struct vivid_dev *)info->par;
+
+	dprintk(dev, 1, "Set blanking mode : %d\n", blank_mode);
+	switch (blank_mode) {
+	case FB_BLANK_UNBLANK:
+		break;
+	case FB_BLANK_NORMAL:
+	case FB_BLANK_HSYNC_SUSPEND:
+	case FB_BLANK_VSYNC_SUSPEND:
+	case FB_BLANK_POWERDOWN:
+		break;
+	}
+	return 0;
+}
+
+static const struct fb_ops vivid_fb_ops = {
+	.owner = THIS_MODULE,
+	FB_DEFAULT_IOMEM_OPS,
+	.fb_check_var   = vivid_fb_check_var,
+	.fb_set_par     = vivid_fb_set_par,
+	.fb_setcolreg   = vivid_fb_setcolreg,
+	.fb_cursor      = NULL,
+	.fb_ioctl       = vivid_fb_ioctl,
+	.fb_pan_display = vivid_fb_pan_display,
+	.fb_blank       = vivid_fb_blank,
+};
+
+/* Initialization */
+
+
+/* Setup our initial video mode */
+static int vivid_fb_init_vidmode(struct vivid_dev *dev)
+{
+	struct v4l2_rect start_window;
+
+	/* Color mode */
+
+	dev->bits_per_pixel = 16;
+	dev->bytes_per_pixel = dev->bits_per_pixel / 8;
+
+	start_window.width = MAX_OSD_WIDTH;
+	start_window.left = 0;
+
+	dev->display_byte_stride = start_window.width * dev->bytes_per_pixel;
+
+	/* Vertical size & position */
+
+	start_window.height = MAX_OSD_HEIGHT;
+	start_window.top = 0;
+
+	dev->display_width = start_window.width;
+	dev->display_height = start_window.height;
+
+	/* Generate a valid fb_var_screeninfo */
+
+	dev->fb_defined.xres = dev->display_width;
+	dev->fb_defined.yres = dev->display_height;
+	dev->fb_defined.xres_virtual = dev->display_width;
+	dev->fb_defined.yres_virtual = dev->display_height;
+	dev->fb_defined.bits_per_pixel = dev->bits_per_pixel;
+	dev->fb_defined.vmode = FB_VMODE_NONINTERLACED;
+	dev->fb_defined.left_margin = start_window.left + 1;
+	dev->fb_defined.upper_margin = start_window.top + 1;
+	dev->fb_defined.accel_flags = FB_ACCEL_NONE;
+	dev->fb_defined.nonstd = 0;
+	/* set default to 1:5:5:5 */
+	dev->fb_defined.green.length = 5;
+
+	/* We've filled in the most data, let the usual mode check
+	   routine fill in the rest. */
+	_vivid_fb_check_var(&dev->fb_defined, dev);
+
+	/* Generate valid fb_fix_screeninfo */
+
+	vivid_fb_get_fix(dev, &dev->fb_fix);
+
+	/* Generate valid fb_info */
+
+	dev->fb_info.node = -1;
+	dev->fb_info.par = dev;
+	dev->fb_info.var = dev->fb_defined;
+	dev->fb_info.fix = dev->fb_fix;
+	dev->fb_info.screen_base = (u8 __iomem *)dev->video_vbase;
+	dev->fb_info.fbops = &vivid_fb_ops;
+
+	/* Supply some monitor specs. Bogus values will do for now */
+	dev->fb_info.monspecs.hfmin = 8000;
+	dev->fb_info.monspecs.hfmax = 70000;
+	dev->fb_info.monspecs.vfmin = 10;
+	dev->fb_info.monspecs.vfmax = 100;
+
+	/* Allocate color map */
+	if (fb_alloc_cmap(&dev->fb_info.cmap, 256, 1)) {
+		pr_err("abort, unable to alloc cmap\n");
+		return -ENOMEM;
+	}
+
+	/* Allocate the pseudo palette */
+	dev->fb_info.pseudo_palette = kmalloc_array(16, sizeof(u32), GFP_KERNEL);
+
+	return dev->fb_info.pseudo_palette ? 0 : -ENOMEM;
+}
+
+/* Release any memory we've grabbed */
+static void vivid_fb_release_buffers(struct vivid_dev *dev)
+{
+	if (dev->video_vbase == NULL)
+		return;
+
+	/* Release cmap */
+	if (dev->fb_info.cmap.len)
+		fb_dealloc_cmap(&dev->fb_info.cmap);
+
+	/* Release pseudo palette */
+	kfree(dev->fb_info.pseudo_palette);
+	kfree(dev->video_vbase);
+}
+
+/* Initialize the specified card */
+
+int vivid_fb_init(struct vivid_dev *dev)
+{
+	int ret;
+
+	dev->video_buffer_size = MAX_OSD_HEIGHT * MAX_OSD_WIDTH * 2;
+	dev->video_vbase = kzalloc(dev->video_buffer_size, GFP_KERNEL);
+	if (dev->video_vbase == NULL)
+		return -ENOMEM;
+	dev->video_pbase = virt_to_phys(dev->video_vbase);
+
+	pr_info("Framebuffer at 0x%lx, mapped to 0x%p, size %dk\n",
+			dev->video_pbase, dev->video_vbase,
+			dev->video_buffer_size / 1024);
+
+	/* Set the startup video mode information */
+	ret = vivid_fb_init_vidmode(dev);
+	if (ret) {
+		vivid_fb_release_buffers(dev);
+		return ret;
+	}
+
+	vivid_fb_clear(dev);
+
+	/* Register the framebuffer */
+	if (register_framebuffer(&dev->fb_info) < 0) {
+		vivid_fb_release_buffers(dev);
+		return -EINVAL;
+	}
+
+	/* Set the card to the requested mode */
+	vivid_fb_set_par(&dev->fb_info);
+
+	v4l2_info(&dev->v4l2_dev, "Framebuffer device registered as fb%d\n",
+		  dev->fb_info.node);
+
+	return 0;
+
+}
+
+void vivid_fb_deinit(struct vivid_dev *dev)
+{
+	v4l2_info(&dev->v4l2_dev, "unregistering fb%d\n", dev->fb_info.node);
+	unregister_framebuffer(&dev->fb_info);
+	vivid_fb_release_buffers(dev);
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-osd.h b/drivers/media/test-drivers/vivid/vivid-osd.h
new file mode 100644
index 000000000..c52280ebc
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-osd.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-osd.h - output overlay support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_OSD_H_
+#define _VIVID_OSD_H_
+
+#ifdef CONFIG_VIDEO_VIVID_OSD
+int vivid_fb_init(struct vivid_dev *dev);
+void vivid_fb_deinit(struct vivid_dev *dev);
+void vivid_fb_clear(struct vivid_dev *dev);
+unsigned int vivid_fb_green_bits(struct vivid_dev *dev);
+#else
+static inline int vivid_fb_init(struct vivid_dev *dev)
+{
+	return -ENODEV;
+}
+
+static inline void vivid_fb_deinit(struct vivid_dev *dev) {}
+static inline void vivid_fb_clear(struct vivid_dev *dev) {}
+static inline unsigned int vivid_fb_green_bits(struct vivid_dev *dev)
+{
+	return 5;
+}
+#endif
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-radio-common.c b/drivers/media/test-drivers/vivid/vivid-radio-common.c
new file mode 100644
index 000000000..138c7bce6
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-radio-common.c
@@ -0,0 +1,177 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-radio-common.c - common radio rx/tx support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/videodev2.h>
+
+#include "vivid-core.h"
+#include "vivid-ctrls.h"
+#include "vivid-radio-common.h"
+#include "vivid-rds-gen.h"
+
+/*
+ * These functions are shared between the vivid receiver and transmitter
+ * since both use the same frequency bands.
+ */
+
+const struct v4l2_frequency_band vivid_radio_bands[TOT_BANDS] = {
+	/* Band FM */
+	{
+		.type = V4L2_TUNER_RADIO,
+		.index = 0,
+		.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
+			      V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   = FM_FREQ_RANGE_LOW,
+		.rangehigh  = FM_FREQ_RANGE_HIGH,
+		.modulation = V4L2_BAND_MODULATION_FM,
+	},
+	/* Band AM */
+	{
+		.type = V4L2_TUNER_RADIO,
+		.index = 1,
+		.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   = AM_FREQ_RANGE_LOW,
+		.rangehigh  = AM_FREQ_RANGE_HIGH,
+		.modulation = V4L2_BAND_MODULATION_AM,
+	},
+	/* Band SW */
+	{
+		.type = V4L2_TUNER_RADIO,
+		.index = 2,
+		.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   = SW_FREQ_RANGE_LOW,
+		.rangehigh  = SW_FREQ_RANGE_HIGH,
+		.modulation = V4L2_BAND_MODULATION_AM,
+	},
+};
+
+/*
+ * Initialize the RDS generator. If we can loop, then the RDS generator
+ * is set up with the values from the RDS TX controls, otherwise it
+ * will fill in standard values using one of two alternates.
+ */
+void vivid_radio_rds_init(struct vivid_dev *dev)
+{
+	struct vivid_rds_gen *rds = &dev->rds_gen;
+	bool alt = dev->radio_rx_rds_use_alternates;
+
+	/* Do nothing, blocks will be filled by the transmitter */
+	if (dev->radio_rds_loop && !dev->radio_tx_rds_controls)
+		return;
+
+	if (dev->radio_rds_loop) {
+		v4l2_ctrl_lock(dev->radio_tx_rds_pi);
+		rds->picode = dev->radio_tx_rds_pi->cur.val;
+		rds->pty = dev->radio_tx_rds_pty->cur.val;
+		rds->mono_stereo = dev->radio_tx_rds_mono_stereo->cur.val;
+		rds->art_head = dev->radio_tx_rds_art_head->cur.val;
+		rds->compressed = dev->radio_tx_rds_compressed->cur.val;
+		rds->dyn_pty = dev->radio_tx_rds_dyn_pty->cur.val;
+		rds->ta = dev->radio_tx_rds_ta->cur.val;
+		rds->tp = dev->radio_tx_rds_tp->cur.val;
+		rds->ms = dev->radio_tx_rds_ms->cur.val;
+		strscpy(rds->psname,
+			dev->radio_tx_rds_psname->p_cur.p_char,
+			sizeof(rds->psname));
+		strscpy(rds->radiotext,
+			dev->radio_tx_rds_radiotext->p_cur.p_char + alt * 64,
+			sizeof(rds->radiotext));
+		v4l2_ctrl_unlock(dev->radio_tx_rds_pi);
+	} else {
+		vivid_rds_gen_fill(rds, dev->radio_rx_freq, alt);
+	}
+	if (dev->radio_rx_rds_controls) {
+		v4l2_ctrl_s_ctrl(dev->radio_rx_rds_pty, rds->pty);
+		v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ta, rds->ta);
+		v4l2_ctrl_s_ctrl(dev->radio_rx_rds_tp, rds->tp);
+		v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ms, rds->ms);
+		v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_psname, rds->psname);
+		v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_radiotext, rds->radiotext);
+		if (!dev->radio_rds_loop)
+			dev->radio_rx_rds_use_alternates = !dev->radio_rx_rds_use_alternates;
+	}
+	vivid_rds_generate(rds);
+}
+
+/*
+ * Calculate the emulated signal quality taking into account the frequency
+ * the transmitter is using.
+ */
+static void vivid_radio_calc_sig_qual(struct vivid_dev *dev)
+{
+	int mod = 16000;
+	int delta = 800;
+	int sig_qual, sig_qual_tx = mod;
+
+	/*
+	 * For SW and FM there is a channel every 1000 kHz, for AM there is one
+	 * every 100 kHz.
+	 */
+	if (dev->radio_rx_freq <= AM_FREQ_RANGE_HIGH) {
+		mod /= 10;
+		delta /= 10;
+	}
+	sig_qual = (dev->radio_rx_freq + delta) % mod - delta;
+	if (dev->has_radio_tx)
+		sig_qual_tx = dev->radio_rx_freq - dev->radio_tx_freq;
+	if (abs(sig_qual_tx) <= abs(sig_qual)) {
+		sig_qual = sig_qual_tx;
+		/*
+		 * Zero the internal rds buffer if we are going to loop
+		 * rds blocks.
+		 */
+		if (!dev->radio_rds_loop && !dev->radio_tx_rds_controls)
+			memset(dev->rds_gen.data, 0,
+			       sizeof(dev->rds_gen.data));
+		dev->radio_rds_loop = dev->radio_rx_freq >= FM_FREQ_RANGE_LOW;
+	} else {
+		dev->radio_rds_loop = false;
+	}
+	if (dev->radio_rx_freq <= AM_FREQ_RANGE_HIGH)
+		sig_qual *= 10;
+	dev->radio_rx_sig_qual = sig_qual;
+}
+
+int vivid_radio_g_frequency(struct file *file, const unsigned *pfreq, struct v4l2_frequency *vf)
+{
+	if (vf->tuner != 0)
+		return -EINVAL;
+	vf->frequency = *pfreq;
+	return 0;
+}
+
+int vivid_radio_s_frequency(struct file *file, unsigned *pfreq, const struct v4l2_frequency *vf)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	unsigned freq;
+	unsigned band;
+
+	if (vf->tuner != 0)
+		return -EINVAL;
+
+	if (vf->frequency >= (FM_FREQ_RANGE_LOW + SW_FREQ_RANGE_HIGH) / 2)
+		band = BAND_FM;
+	else if (vf->frequency <= (AM_FREQ_RANGE_HIGH + SW_FREQ_RANGE_LOW) / 2)
+		band = BAND_AM;
+	else
+		band = BAND_SW;
+
+	freq = clamp_t(u32, vf->frequency, vivid_radio_bands[band].rangelow,
+					   vivid_radio_bands[band].rangehigh);
+	*pfreq = freq;
+
+	/*
+	 * For both receiver and transmitter recalculate the signal quality
+	 * (since that depends on both frequencies) and re-init the rds
+	 * generator.
+	 */
+	vivid_radio_calc_sig_qual(dev);
+	vivid_radio_rds_init(dev);
+	return 0;
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-radio-common.h b/drivers/media/test-drivers/vivid/vivid-radio-common.h
new file mode 100644
index 000000000..30a9900e5
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-radio-common.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-radio-common.h - common radio rx/tx support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_RADIO_COMMON_H_
+#define _VIVID_RADIO_COMMON_H_
+
+/* The supported radio frequency ranges in kHz */
+#define FM_FREQ_RANGE_LOW       (64000U * 16U)
+#define FM_FREQ_RANGE_HIGH      (108000U * 16U)
+#define AM_FREQ_RANGE_LOW       (520U * 16U)
+#define AM_FREQ_RANGE_HIGH      (1710U * 16U)
+#define SW_FREQ_RANGE_LOW       (2300U * 16U)
+#define SW_FREQ_RANGE_HIGH      (26100U * 16U)
+
+enum { BAND_FM, BAND_AM, BAND_SW, TOT_BANDS };
+
+extern const struct v4l2_frequency_band vivid_radio_bands[TOT_BANDS];
+
+int vivid_radio_g_frequency(struct file *file, const unsigned *freq, struct v4l2_frequency *vf);
+int vivid_radio_s_frequency(struct file *file, unsigned *freq, const struct v4l2_frequency *vf);
+
+void vivid_radio_rds_init(struct vivid_dev *dev);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-radio-rx.c b/drivers/media/test-drivers/vivid/vivid-radio-rx.c
new file mode 100644
index 000000000..b5e3026f8
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-radio-rx.c
@@ -0,0 +1,278 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-radio-rx.c - radio receiver support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/videodev2.h>
+#include <linux/v4l2-dv-timings.h>
+#include <linux/sched/signal.h>
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-dv-timings.h>
+
+#include "vivid-core.h"
+#include "vivid-ctrls.h"
+#include "vivid-radio-common.h"
+#include "vivid-rds-gen.h"
+#include "vivid-radio-rx.h"
+
+ssize_t vivid_radio_rx_read(struct file *file, char __user *buf,
+			 size_t size, loff_t *offset)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_rds_data *data = dev->rds_gen.data;
+	bool use_alternates;
+	ktime_t timestamp;
+	unsigned blk;
+	int perc;
+	int i;
+
+	if (dev->radio_rx_rds_controls)
+		return -EINVAL;
+	if (size < sizeof(*data))
+		return 0;
+	size = sizeof(*data) * (size / sizeof(*data));
+
+	if (mutex_lock_interruptible(&dev->mutex))
+		return -ERESTARTSYS;
+	if (dev->radio_rx_rds_owner &&
+	    file_to_v4l2_fh(file) != dev->radio_rx_rds_owner) {
+		mutex_unlock(&dev->mutex);
+		return -EBUSY;
+	}
+	if (dev->radio_rx_rds_owner == NULL) {
+		vivid_radio_rds_init(dev);
+		dev->radio_rx_rds_owner = file_to_v4l2_fh(file);
+	}
+
+retry:
+	timestamp = ktime_sub(ktime_get(), dev->radio_rds_init_time);
+	blk = ktime_divns(timestamp, VIVID_RDS_NSEC_PER_BLK);
+	use_alternates = (blk % VIVID_RDS_GEN_BLOCKS) & 1;
+
+	if (dev->radio_rx_rds_last_block == 0 ||
+	    dev->radio_rx_rds_use_alternates != use_alternates) {
+		dev->radio_rx_rds_use_alternates = use_alternates;
+		/* Re-init the RDS generator */
+		vivid_radio_rds_init(dev);
+	}
+	if (blk >= dev->radio_rx_rds_last_block + VIVID_RDS_GEN_BLOCKS)
+		dev->radio_rx_rds_last_block = blk - VIVID_RDS_GEN_BLOCKS + 1;
+
+	/*
+	 * No data is available if there hasn't been time to get new data,
+	 * or if the RDS receiver has been disabled, or if we use the data
+	 * from the RDS transmitter and that RDS transmitter has been disabled,
+	 * or if the signal quality is too weak.
+	 */
+	if (blk == dev->radio_rx_rds_last_block || !dev->radio_rx_rds_enabled ||
+	    (dev->radio_rds_loop && !(dev->radio_tx_subchans & V4L2_TUNER_SUB_RDS)) ||
+	    abs(dev->radio_rx_sig_qual) > 200) {
+		mutex_unlock(&dev->mutex);
+		if (file->f_flags & O_NONBLOCK)
+			return -EWOULDBLOCK;
+		if (msleep_interruptible(20) && signal_pending(current))
+			return -EINTR;
+		if (mutex_lock_interruptible(&dev->mutex))
+			return -ERESTARTSYS;
+		goto retry;
+	}
+
+	/* abs(dev->radio_rx_sig_qual) <= 200, map that to a 0-50% range */
+	perc = abs(dev->radio_rx_sig_qual) / 4;
+
+	for (i = 0; i < size && blk > dev->radio_rx_rds_last_block;
+			dev->radio_rx_rds_last_block++) {
+		unsigned data_blk = dev->radio_rx_rds_last_block % VIVID_RDS_GEN_BLOCKS;
+		struct v4l2_rds_data rds = data[data_blk];
+
+		if (data_blk == 0 && dev->radio_rds_loop)
+			vivid_radio_rds_init(dev);
+		if (perc && get_random_u32_below(100) < perc) {
+			switch (get_random_u32_below(4)) {
+			case 0:
+				rds.block |= V4L2_RDS_BLOCK_CORRECTED;
+				break;
+			case 1:
+				rds.block |= V4L2_RDS_BLOCK_INVALID;
+				break;
+			case 2:
+				rds.block |= V4L2_RDS_BLOCK_ERROR;
+				rds.lsb = get_random_u8();
+				rds.msb = get_random_u8();
+				break;
+			case 3: /* Skip block altogether */
+				if (i)
+					continue;
+				/*
+				 * Must make sure at least one block is
+				 * returned, otherwise the application
+				 * might think that end-of-file occurred.
+				 */
+				break;
+			}
+		}
+		if (copy_to_user(buf + i, &rds, sizeof(rds))) {
+			i = -EFAULT;
+			break;
+		}
+		i += sizeof(rds);
+	}
+	mutex_unlock(&dev->mutex);
+	return i;
+}
+
+__poll_t vivid_radio_rx_poll(struct file *file, struct poll_table_struct *wait)
+{
+	return EPOLLIN | EPOLLRDNORM | v4l2_ctrl_poll(file, wait);
+}
+
+int vivid_radio_rx_enum_freq_bands(struct file *file, void *priv, struct v4l2_frequency_band *band)
+{
+	if (band->tuner != 0)
+		return -EINVAL;
+
+	if (band->index >= TOT_BANDS)
+		return -EINVAL;
+
+	*band = vivid_radio_bands[band->index];
+	return 0;
+}
+
+int vivid_radio_rx_s_hw_freq_seek(struct file *file, void *priv, const struct v4l2_hw_freq_seek *a)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	unsigned low, high;
+	unsigned freq;
+	unsigned spacing;
+	unsigned band;
+
+	if (a->tuner)
+		return -EINVAL;
+	if (a->wrap_around && dev->radio_rx_hw_seek_mode == VIVID_HW_SEEK_BOUNDED)
+		return -EINVAL;
+
+	if (!a->wrap_around && dev->radio_rx_hw_seek_mode == VIVID_HW_SEEK_WRAP)
+		return -EINVAL;
+	if (!a->rangelow ^ !a->rangehigh)
+		return -EINVAL;
+
+	if (file->f_flags & O_NONBLOCK)
+		return -EWOULDBLOCK;
+
+	if (a->rangelow) {
+		for (band = 0; band < TOT_BANDS; band++)
+			if (a->rangelow >= vivid_radio_bands[band].rangelow &&
+			    a->rangehigh <= vivid_radio_bands[band].rangehigh)
+				break;
+		if (band == TOT_BANDS)
+			return -EINVAL;
+		if (!dev->radio_rx_hw_seek_prog_lim &&
+		    (a->rangelow != vivid_radio_bands[band].rangelow ||
+		     a->rangehigh != vivid_radio_bands[band].rangehigh))
+			return -EINVAL;
+		low = a->rangelow;
+		high = a->rangehigh;
+	} else {
+		for (band = 0; band < TOT_BANDS; band++)
+			if (dev->radio_rx_freq >= vivid_radio_bands[band].rangelow &&
+			    dev->radio_rx_freq <= vivid_radio_bands[band].rangehigh)
+				break;
+		if (band == TOT_BANDS)
+			return -EINVAL;
+		low = vivid_radio_bands[band].rangelow;
+		high = vivid_radio_bands[band].rangehigh;
+	}
+	spacing = band == BAND_AM ? 1600 : 16000;
+	freq = clamp(dev->radio_rx_freq, low, high);
+
+	if (a->seek_upward) {
+		freq = spacing * (freq / spacing) + spacing;
+		if (freq > high) {
+			if (!a->wrap_around)
+				return -ENODATA;
+			freq = spacing * (low / spacing) + spacing;
+			if (freq >= dev->radio_rx_freq)
+				return -ENODATA;
+		}
+	} else {
+		freq = spacing * ((freq + spacing - 1) / spacing) - spacing;
+		if (freq < low) {
+			if (!a->wrap_around)
+				return -ENODATA;
+			freq = spacing * ((high + spacing - 1) / spacing) - spacing;
+			if (freq <= dev->radio_rx_freq)
+				return -ENODATA;
+		}
+	}
+	return 0;
+}
+
+int vivid_radio_rx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	int delta = 800;
+	int sig_qual;
+
+	if (vt->index > 0)
+		return -EINVAL;
+
+	strscpy(vt->name, "AM/FM/SW Receiver", sizeof(vt->name));
+	vt->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
+			 V4L2_TUNER_CAP_FREQ_BANDS | V4L2_TUNER_CAP_RDS |
+			 (dev->radio_rx_rds_controls ?
+				V4L2_TUNER_CAP_RDS_CONTROLS :
+				V4L2_TUNER_CAP_RDS_BLOCK_IO) |
+			 (dev->radio_rx_hw_seek_prog_lim ?
+				V4L2_TUNER_CAP_HWSEEK_PROG_LIM : 0);
+	switch (dev->radio_rx_hw_seek_mode) {
+	case VIVID_HW_SEEK_BOUNDED:
+		vt->capability |= V4L2_TUNER_CAP_HWSEEK_BOUNDED;
+		break;
+	case VIVID_HW_SEEK_WRAP:
+		vt->capability |= V4L2_TUNER_CAP_HWSEEK_WRAP;
+		break;
+	case VIVID_HW_SEEK_BOTH:
+		vt->capability |= V4L2_TUNER_CAP_HWSEEK_WRAP |
+				  V4L2_TUNER_CAP_HWSEEK_BOUNDED;
+		break;
+	}
+	vt->rangelow = AM_FREQ_RANGE_LOW;
+	vt->rangehigh = FM_FREQ_RANGE_HIGH;
+	sig_qual = dev->radio_rx_sig_qual;
+	vt->signal = abs(sig_qual) > delta ? 0 :
+		     0xffff - ((unsigned)abs(sig_qual) * 0xffff) / delta;
+	vt->afc = sig_qual > delta ? 0 : sig_qual;
+	if (abs(sig_qual) > delta)
+		vt->rxsubchans = 0;
+	else if (dev->radio_rx_freq < FM_FREQ_RANGE_LOW || vt->signal < 0x8000)
+		vt->rxsubchans = V4L2_TUNER_SUB_MONO;
+	else if (dev->radio_rds_loop && !(dev->radio_tx_subchans & V4L2_TUNER_SUB_STEREO))
+		vt->rxsubchans = V4L2_TUNER_SUB_MONO;
+	else
+		vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
+	if (dev->radio_rx_rds_enabled &&
+	    (!dev->radio_rds_loop || (dev->radio_tx_subchans & V4L2_TUNER_SUB_RDS)) &&
+	    dev->radio_rx_freq >= FM_FREQ_RANGE_LOW && vt->signal >= 0xc000)
+		vt->rxsubchans |= V4L2_TUNER_SUB_RDS;
+	if (dev->radio_rx_rds_controls)
+		vivid_radio_rds_init(dev);
+	vt->audmode = dev->radio_rx_audmode;
+	return 0;
+}
+
+int vivid_radio_rx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (vt->index)
+		return -EINVAL;
+	dev->radio_rx_audmode = vt->audmode >= V4L2_TUNER_MODE_STEREO;
+	return 0;
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-radio-rx.h b/drivers/media/test-drivers/vivid/vivid-radio-rx.h
new file mode 100644
index 000000000..a2ae17c78
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-radio-rx.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-radio-rx.h - radio receiver support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_RADIO_RX_H_
+#define _VIVID_RADIO_RX_H_
+
+ssize_t vivid_radio_rx_read(struct file *, char __user *, size_t, loff_t *);
+__poll_t vivid_radio_rx_poll(struct file *file, struct poll_table_struct *wait);
+
+int vivid_radio_rx_enum_freq_bands(struct file *file, void *priv, struct v4l2_frequency_band *band);
+int vivid_radio_rx_s_hw_freq_seek(struct file *file, void *priv, const struct v4l2_hw_freq_seek *a);
+int vivid_radio_rx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt);
+int vivid_radio_rx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-radio-tx.c b/drivers/media/test-drivers/vivid/vivid-radio-tx.c
new file mode 100644
index 000000000..ada607220
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-radio-tx.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-radio-tx.c - radio transmitter support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched/signal.h>
+#include <linux/delay.h>
+#include <linux/videodev2.h>
+#include <linux/v4l2-dv-timings.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-dv-timings.h>
+
+#include "vivid-core.h"
+#include "vivid-ctrls.h"
+#include "vivid-radio-common.h"
+#include "vivid-radio-tx.h"
+
+ssize_t vivid_radio_tx_write(struct file *file, const char __user *buf,
+			  size_t size, loff_t *offset)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_rds_data *data = dev->rds_gen.data;
+	ktime_t timestamp;
+	unsigned blk;
+	int i;
+
+	if (dev->radio_tx_rds_controls)
+		return -EINVAL;
+
+	if (size < sizeof(*data))
+		return -EINVAL;
+	size = sizeof(*data) * (size / sizeof(*data));
+
+	if (mutex_lock_interruptible(&dev->mutex))
+		return -ERESTARTSYS;
+	if (dev->radio_tx_rds_owner &&
+	    file_to_v4l2_fh(file) != dev->radio_tx_rds_owner) {
+		mutex_unlock(&dev->mutex);
+		return -EBUSY;
+	}
+	dev->radio_tx_rds_owner = file_to_v4l2_fh(file);
+
+retry:
+	timestamp = ktime_sub(ktime_get(), dev->radio_rds_init_time);
+	blk = ktime_divns(timestamp, VIVID_RDS_NSEC_PER_BLK);
+	if (blk - VIVID_RDS_GEN_BLOCKS >= dev->radio_tx_rds_last_block)
+		dev->radio_tx_rds_last_block = blk - VIVID_RDS_GEN_BLOCKS + 1;
+
+	/*
+	 * No data is available if there hasn't been time to get new data,
+	 * or if the RDS receiver has been disabled, or if we use the data
+	 * from the RDS transmitter and that RDS transmitter has been disabled,
+	 * or if the signal quality is too weak.
+	 */
+	if (blk == dev->radio_tx_rds_last_block ||
+	    !(dev->radio_tx_subchans & V4L2_TUNER_SUB_RDS)) {
+		mutex_unlock(&dev->mutex);
+		if (file->f_flags & O_NONBLOCK)
+			return -EWOULDBLOCK;
+		if (msleep_interruptible(20) && signal_pending(current))
+			return -EINTR;
+		if (mutex_lock_interruptible(&dev->mutex))
+			return -ERESTARTSYS;
+		goto retry;
+	}
+
+	for (i = 0; i < size && blk > dev->radio_tx_rds_last_block;
+			dev->radio_tx_rds_last_block++) {
+		unsigned data_blk = dev->radio_tx_rds_last_block % VIVID_RDS_GEN_BLOCKS;
+		struct v4l2_rds_data rds;
+
+		if (copy_from_user(&rds, buf + i, sizeof(rds))) {
+			i = -EFAULT;
+			break;
+		}
+		i += sizeof(rds);
+		if (!dev->radio_rds_loop)
+			continue;
+		if ((rds.block & V4L2_RDS_BLOCK_MSK) == V4L2_RDS_BLOCK_INVALID ||
+		    (rds.block & V4L2_RDS_BLOCK_ERROR))
+			continue;
+		rds.block &= V4L2_RDS_BLOCK_MSK;
+		data[data_blk] = rds;
+	}
+	mutex_unlock(&dev->mutex);
+	return i;
+}
+
+__poll_t vivid_radio_tx_poll(struct file *file, struct poll_table_struct *wait)
+{
+	return EPOLLOUT | EPOLLWRNORM | v4l2_ctrl_poll(file, wait);
+}
+
+int vidioc_g_modulator(struct file *file, void *priv, struct v4l2_modulator *a)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (a->index > 0)
+		return -EINVAL;
+
+	strscpy(a->name, "AM/FM/SW Transmitter", sizeof(a->name));
+	a->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
+			V4L2_TUNER_CAP_FREQ_BANDS | V4L2_TUNER_CAP_RDS |
+			(dev->radio_tx_rds_controls ?
+				V4L2_TUNER_CAP_RDS_CONTROLS :
+				V4L2_TUNER_CAP_RDS_BLOCK_IO);
+	a->rangelow = AM_FREQ_RANGE_LOW;
+	a->rangehigh = FM_FREQ_RANGE_HIGH;
+	a->txsubchans = dev->radio_tx_subchans;
+	return 0;
+}
+
+int vidioc_s_modulator(struct file *file, void *priv, const struct v4l2_modulator *a)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (a->index)
+		return -EINVAL;
+	if (a->txsubchans & ~0x13)
+		return -EINVAL;
+	dev->radio_tx_subchans = a->txsubchans;
+	return 0;
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-radio-tx.h b/drivers/media/test-drivers/vivid/vivid-radio-tx.h
new file mode 100644
index 000000000..20cb6f136
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-radio-tx.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-radio-tx.h - radio transmitter support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_RADIO_TX_H_
+#define _VIVID_RADIO_TX_H_
+
+ssize_t vivid_radio_tx_write(struct file *, const char __user *, size_t, loff_t *);
+__poll_t vivid_radio_tx_poll(struct file *file, struct poll_table_struct *wait);
+
+int vidioc_g_modulator(struct file *file, void *priv, struct v4l2_modulator *a);
+int vidioc_s_modulator(struct file *file, void *priv, const struct v4l2_modulator *a);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-rds-gen.c b/drivers/media/test-drivers/vivid/vivid-rds-gen.c
new file mode 100644
index 000000000..c57771119
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-rds-gen.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-rds-gen.c - rds (radio data system) generator support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/kernel.h>
+#include <linux/ktime.h>
+#include <linux/string.h>
+#include <linux/videodev2.h>
+
+#include "vivid-rds-gen.h"
+
+static u8 vivid_get_di(const struct vivid_rds_gen *rds, unsigned grp)
+{
+	switch (grp) {
+	case 0:
+		return (rds->dyn_pty << 2) | (grp & 3);
+	case 1:
+		return (rds->compressed << 2) | (grp & 3);
+	case 2:
+		return (rds->art_head << 2) | (grp & 3);
+	case 3:
+		return (rds->mono_stereo << 2) | (grp & 3);
+	}
+	return 0;
+}
+
+/*
+ * This RDS generator creates 57 RDS groups (one group == four RDS blocks).
+ * Groups 0-3, 22-25 and 44-47 (spaced 22 groups apart) are filled with a
+ * standard 0B group containing the PI code and PS name.
+ *
+ * Groups 4-19 and 26-41 use group 2A for the radio text.
+ *
+ * Group 56 contains the time (group 4A).
+ *
+ * All remaining groups use a filler group 15B block that just repeats
+ * the PI and PTY codes.
+ */
+void vivid_rds_generate(struct vivid_rds_gen *rds)
+{
+	struct v4l2_rds_data *data = rds->data;
+	unsigned grp;
+	unsigned idx;
+	struct tm tm;
+	unsigned date;
+	unsigned time;
+	int l;
+
+	for (grp = 0; grp < VIVID_RDS_GEN_GROUPS; grp++, data += VIVID_RDS_GEN_BLKS_PER_GRP) {
+		data[0].lsb = rds->picode & 0xff;
+		data[0].msb = rds->picode >> 8;
+		data[0].block = V4L2_RDS_BLOCK_A | (V4L2_RDS_BLOCK_A << 3);
+		data[1].lsb = rds->pty << 5;
+		data[1].msb = (rds->pty >> 3) | (rds->tp << 2);
+		data[1].block = V4L2_RDS_BLOCK_B | (V4L2_RDS_BLOCK_B << 3);
+		data[3].block = V4L2_RDS_BLOCK_D | (V4L2_RDS_BLOCK_D << 3);
+
+		switch (grp) {
+		case 0 ... 3:
+		case 22 ... 25:
+		case 44 ... 47: /* Group 0B */
+			idx = (grp % 22) % 4;
+			data[1].lsb |= (rds->ta << 4) | (rds->ms << 3);
+			data[1].lsb |= vivid_get_di(rds, idx);
+			data[1].msb |= 1 << 3;
+			data[2].lsb = rds->picode & 0xff;
+			data[2].msb = rds->picode >> 8;
+			data[2].block = V4L2_RDS_BLOCK_C_ALT | (V4L2_RDS_BLOCK_C_ALT << 3);
+			data[3].lsb = rds->psname[2 * idx + 1];
+			data[3].msb = rds->psname[2 * idx];
+			break;
+		case 4 ... 19:
+		case 26 ... 41: /* Group 2A */
+			idx = ((grp - 4) % 22) % 16;
+			data[1].lsb |= idx;
+			data[1].msb |= 4 << 3;
+			data[2].msb = rds->radiotext[4 * idx];
+			data[2].lsb = rds->radiotext[4 * idx + 1];
+			data[2].block = V4L2_RDS_BLOCK_C | (V4L2_RDS_BLOCK_C << 3);
+			data[3].msb = rds->radiotext[4 * idx + 2];
+			data[3].lsb = rds->radiotext[4 * idx + 3];
+			break;
+		case 56:
+			/*
+			 * Group 4A
+			 *
+			 * Uses the algorithm from Annex G of the RDS standard
+			 * EN 50067:1998 to convert a UTC date to an RDS Modified
+			 * Julian Day.
+			 */
+			time64_to_tm(ktime_get_real_seconds(), 0, &tm);
+			l = tm.tm_mon <= 1;
+			date = 14956 + tm.tm_mday + ((tm.tm_year - l) * 1461) / 4 +
+				((tm.tm_mon + 2 + l * 12) * 306001) / 10000;
+			time = (tm.tm_hour << 12) |
+			       (tm.tm_min << 6) |
+			       (sys_tz.tz_minuteswest >= 0 ? 0x20 : 0) |
+			       (abs(sys_tz.tz_minuteswest) / 30);
+			data[1].lsb &= ~3;
+			data[1].lsb |= date >> 15;
+			data[1].msb |= 8 << 3;
+			data[2].lsb = (date << 1) & 0xfe;
+			data[2].lsb |= (time >> 16) & 1;
+			data[2].msb = (date >> 7) & 0xff;
+			data[2].block = V4L2_RDS_BLOCK_C | (V4L2_RDS_BLOCK_C << 3);
+			data[3].lsb = time & 0xff;
+			data[3].msb = (time >> 8) & 0xff;
+			break;
+		default: /* Group 15B */
+			data[1].lsb |= (rds->ta << 4) | (rds->ms << 3);
+			data[1].lsb |= vivid_get_di(rds, grp % 22);
+			data[1].msb |= 0x1f << 3;
+			data[2].lsb = rds->picode & 0xff;
+			data[2].msb = rds->picode >> 8;
+			data[2].block = V4L2_RDS_BLOCK_C_ALT | (V4L2_RDS_BLOCK_C_ALT << 3);
+			data[3].lsb = rds->pty << 5;
+			data[3].lsb |= (rds->ta << 4) | (rds->ms << 3);
+			data[3].lsb |= vivid_get_di(rds, grp % 22);
+			data[3].msb |= rds->pty >> 3;
+			data[3].msb |= 0x1f << 3;
+			break;
+		}
+	}
+}
+
+void vivid_rds_gen_fill(struct vivid_rds_gen *rds, unsigned freq,
+			  bool alt)
+{
+	/* Alternate PTY between Info and Weather */
+	if (rds->use_rbds) {
+		rds->picode = 0x2e75; /* 'KLNX' call sign */
+		rds->pty = alt ? 29 : 2;
+	} else {
+		rds->picode = 0x8088;
+		rds->pty = alt ? 16 : 3;
+	}
+	rds->mono_stereo = true;
+	rds->art_head = false;
+	rds->compressed = false;
+	rds->dyn_pty = false;
+	rds->tp = true;
+	rds->ta = alt;
+	rds->ms = true;
+	snprintf(rds->psname, sizeof(rds->psname), "%6d.%1d",
+		 (freq / 16) % 1000000, (((freq & 0xf) * 10) / 16) % 10);
+	if (alt)
+		strscpy(rds->radiotext,
+			" The Radio Data System can switch between different Radio Texts ",
+			sizeof(rds->radiotext));
+	else
+		strscpy(rds->radiotext,
+			"An example of Radio Text as transmitted by the Radio Data System",
+			sizeof(rds->radiotext));
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-rds-gen.h b/drivers/media/test-drivers/vivid/vivid-rds-gen.h
new file mode 100644
index 000000000..35ac57423
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-rds-gen.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-rds-gen.h - rds (radio data system) generator support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_RDS_GEN_H_
+#define _VIVID_RDS_GEN_H_
+
+/*
+ * It takes almost exactly 5 seconds to transmit 57 RDS groups.
+ * Each group has 4 blocks and each block has a payload of 16 bits + a
+ * block identification. The driver will generate the contents of these
+ * 57 groups only when necessary and it will just be played continuously.
+ */
+#define VIVID_RDS_GEN_GROUPS 57
+#define VIVID_RDS_GEN_BLKS_PER_GRP 4
+#define VIVID_RDS_GEN_BLOCKS (VIVID_RDS_GEN_BLKS_PER_GRP * VIVID_RDS_GEN_GROUPS)
+#define VIVID_RDS_NSEC_PER_BLK (u32)(5ull * NSEC_PER_SEC / VIVID_RDS_GEN_BLOCKS)
+
+struct vivid_rds_gen {
+	struct v4l2_rds_data	data[VIVID_RDS_GEN_BLOCKS];
+	bool			use_rbds;
+	u16			picode;
+	u8			pty;
+	bool			mono_stereo;
+	bool			art_head;
+	bool			compressed;
+	bool			dyn_pty;
+	bool			ta;
+	bool			tp;
+	bool			ms;
+	char			psname[8 + 1];
+	char			radiotext[64 + 1];
+};
+
+void vivid_rds_gen_fill(struct vivid_rds_gen *rds, unsigned freq,
+		    bool use_alternate);
+void vivid_rds_generate(struct vivid_rds_gen *rds);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-sdr-cap.c b/drivers/media/test-drivers/vivid/vivid-sdr-cap.c
new file mode 100644
index 000000000..2664a593e
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-sdr-cap.c
@@ -0,0 +1,582 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-sdr-cap.c - software defined radio support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+#include <linux/math64.h>
+#include <linux/videodev2.h>
+#include <linux/v4l2-dv-timings.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-dv-timings.h>
+#include <linux/fixp-arith.h>
+#include <linux/jiffies.h>
+
+#include "vivid-core.h"
+#include "vivid-ctrls.h"
+#include "vivid-sdr-cap.h"
+
+/* stream formats */
+struct vivid_format {
+	u32	pixelformat;
+	u32	buffersize;
+};
+
+/* format descriptions for capture and preview */
+static const struct vivid_format formats[] = {
+	{
+		.pixelformat	= V4L2_SDR_FMT_CU8,
+		.buffersize	= SDR_CAP_SAMPLES_PER_BUF * 2,
+	}, {
+		.pixelformat	= V4L2_SDR_FMT_CS8,
+		.buffersize	= SDR_CAP_SAMPLES_PER_BUF * 2,
+	},
+};
+
+static const struct v4l2_frequency_band bands_adc[] = {
+	{
+		.tuner = 0,
+		.type = V4L2_TUNER_ADC,
+		.index = 0,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   =  300000,
+		.rangehigh  =  300000,
+	},
+	{
+		.tuner = 0,
+		.type = V4L2_TUNER_ADC,
+		.index = 1,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   =  900001,
+		.rangehigh  = 2800000,
+	},
+	{
+		.tuner = 0,
+		.type = V4L2_TUNER_ADC,
+		.index = 2,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   = 3200000,
+		.rangehigh  = 3200000,
+	},
+};
+
+/* ADC band midpoints */
+#define BAND_ADC_0 ((bands_adc[0].rangehigh + bands_adc[1].rangelow) / 2)
+#define BAND_ADC_1 ((bands_adc[1].rangehigh + bands_adc[2].rangelow) / 2)
+
+static const struct v4l2_frequency_band bands_fm[] = {
+	{
+		.tuner = 1,
+		.type = V4L2_TUNER_RF,
+		.index = 0,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   =    50000000,
+		.rangehigh  =  2000000000,
+	},
+};
+
+static void vivid_thread_sdr_cap_tick(struct vivid_dev *dev)
+{
+	struct vivid_buffer *sdr_cap_buf = NULL;
+
+	dprintk(dev, 1, "SDR Capture Thread Tick\n");
+
+	/* Drop a certain percentage of buffers. */
+	if (dev->perc_dropped_buffers &&
+	    get_random_u32_below(100) < dev->perc_dropped_buffers)
+		return;
+
+	spin_lock(&dev->slock);
+	if (!list_empty(&dev->sdr_cap_active)) {
+		sdr_cap_buf = list_entry(dev->sdr_cap_active.next,
+					 struct vivid_buffer, list);
+		list_del(&sdr_cap_buf->list);
+	}
+	spin_unlock(&dev->slock);
+
+	if (sdr_cap_buf) {
+		sdr_cap_buf->vb.sequence = dev->sdr_cap_with_seq_wrap_count;
+		v4l2_ctrl_request_setup(sdr_cap_buf->vb.vb2_buf.req_obj.req,
+					&dev->ctrl_hdl_sdr_cap);
+		v4l2_ctrl_request_complete(sdr_cap_buf->vb.vb2_buf.req_obj.req,
+					   &dev->ctrl_hdl_sdr_cap);
+		vivid_sdr_cap_process(dev, sdr_cap_buf);
+		sdr_cap_buf->vb.vb2_buf.timestamp =
+			ktime_get_ns() + dev->time_wrap_offset;
+		vb2_buffer_done(&sdr_cap_buf->vb.vb2_buf, dev->dqbuf_error ?
+				VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
+		dev->dqbuf_error = false;
+	}
+}
+
+static int vivid_thread_sdr_cap(void *data)
+{
+	struct vivid_dev *dev = data;
+	u64 samples_since_start;
+	u64 buffers_since_start;
+	u64 next_jiffies_since_start;
+	unsigned long jiffies_since_start;
+	unsigned long cur_jiffies;
+	unsigned wait_jiffies;
+
+	dprintk(dev, 1, "SDR Capture Thread Start\n");
+
+	set_freezable();
+
+	/* Resets frame counters */
+	dev->sdr_cap_seq_offset = 0;
+	dev->sdr_cap_seq_count = 0;
+	dev->jiffies_sdr_cap = jiffies;
+	dev->sdr_cap_seq_resync = false;
+	if (dev->time_wrap)
+		dev->time_wrap_offset = dev->time_wrap - ktime_get_ns();
+	else
+		dev->time_wrap_offset = 0;
+
+	for (;;) {
+		try_to_freeze();
+		if (kthread_should_stop())
+			break;
+
+		if (!mutex_trylock(&dev->mutex)) {
+			schedule();
+			continue;
+		}
+
+		cur_jiffies = jiffies;
+		if (dev->sdr_cap_seq_resync) {
+			dev->jiffies_sdr_cap = cur_jiffies;
+			dev->sdr_cap_seq_offset = dev->sdr_cap_seq_count + 1;
+			dev->sdr_cap_seq_count = 0;
+			dev->sdr_cap_seq_resync = false;
+		}
+		/* Calculate the number of jiffies since we started streaming */
+		jiffies_since_start = cur_jiffies - dev->jiffies_sdr_cap;
+		/* Get the number of buffers streamed since the start */
+		buffers_since_start =
+			(u64)jiffies_since_start * dev->sdr_adc_freq +
+				      (HZ * SDR_CAP_SAMPLES_PER_BUF) / 2;
+		do_div(buffers_since_start, HZ * SDR_CAP_SAMPLES_PER_BUF);
+
+		/*
+		 * After more than 0xf0000000 (rounded down to a multiple of
+		 * 'jiffies-per-day' to ease jiffies_to_msecs calculation)
+		 * jiffies have passed since we started streaming reset the
+		 * counters and keep track of the sequence offset.
+		 */
+		if (jiffies_since_start > JIFFIES_RESYNC) {
+			dev->jiffies_sdr_cap = cur_jiffies;
+			dev->sdr_cap_seq_offset = buffers_since_start;
+			buffers_since_start = 0;
+		}
+		dev->sdr_cap_seq_count =
+			buffers_since_start + dev->sdr_cap_seq_offset;
+		dev->sdr_cap_with_seq_wrap_count = dev->sdr_cap_seq_count - dev->sdr_cap_seq_start;
+
+		vivid_thread_sdr_cap_tick(dev);
+		mutex_unlock(&dev->mutex);
+
+		/*
+		 * Calculate the number of samples streamed since we started,
+		 * not including the current buffer.
+		 */
+		samples_since_start = buffers_since_start * SDR_CAP_SAMPLES_PER_BUF;
+
+		/* And the number of jiffies since we started */
+		jiffies_since_start = jiffies - dev->jiffies_sdr_cap;
+
+		/* Increase by the number of samples in one buffer */
+		samples_since_start += SDR_CAP_SAMPLES_PER_BUF;
+		/*
+		 * Calculate when that next buffer is supposed to start
+		 * in jiffies since we started streaming.
+		 */
+		next_jiffies_since_start = samples_since_start * HZ +
+					   dev->sdr_adc_freq / 2;
+		do_div(next_jiffies_since_start, dev->sdr_adc_freq);
+		/* If it is in the past, then just schedule asap */
+		if (next_jiffies_since_start < jiffies_since_start)
+			next_jiffies_since_start = jiffies_since_start;
+
+		wait_jiffies = next_jiffies_since_start - jiffies_since_start;
+		if (!time_is_after_jiffies(cur_jiffies + wait_jiffies))
+			continue;
+
+		wait_queue_head_t wait;
+
+		init_waitqueue_head(&wait);
+		wait_event_interruptible_timeout(wait, kthread_should_stop(),
+					cur_jiffies + wait_jiffies - jiffies);
+	}
+	dprintk(dev, 1, "SDR Capture Thread End\n");
+	return 0;
+}
+
+static int sdr_cap_queue_setup(struct vb2_queue *vq,
+		       unsigned *nbuffers, unsigned *nplanes,
+		       unsigned sizes[], struct device *alloc_devs[])
+{
+	/* 2 = max 16-bit sample returned */
+	u32 size = SDR_CAP_SAMPLES_PER_BUF * 2;
+
+	if (*nplanes)
+		return sizes[0] < size ? -EINVAL : 0;
+
+	*nplanes = 1;
+	sizes[0] = size;
+	return 0;
+}
+
+static int sdr_cap_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	unsigned size = SDR_CAP_SAMPLES_PER_BUF * 2;
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (dev->buf_prepare_error) {
+		/*
+		 * Error injection: test what happens if buf_prepare() returns
+		 * an error.
+		 */
+		dev->buf_prepare_error = false;
+		return -EINVAL;
+	}
+	if (vb2_plane_size(vb, 0) < size) {
+		dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
+				__func__, vb2_plane_size(vb, 0), size);
+		return -EINVAL;
+	}
+	vb2_set_plane_payload(vb, 0, size);
+
+	return 0;
+}
+
+static void sdr_cap_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	spin_lock(&dev->slock);
+	list_add_tail(&buf->list, &dev->sdr_cap_active);
+	spin_unlock(&dev->slock);
+}
+
+static int sdr_cap_start_streaming(struct vb2_queue *vq, unsigned count)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	int err = 0;
+
+	dprintk(dev, 1, "%s\n", __func__);
+	dev->sdr_cap_seq_start = dev->seq_wrap * 128;
+	if (dev->start_streaming_error) {
+		dev->start_streaming_error = false;
+		err = -EINVAL;
+	} else if (dev->kthread_sdr_cap == NULL) {
+		dev->kthread_sdr_cap = kthread_run(vivid_thread_sdr_cap, dev,
+				"%s-sdr-cap", dev->v4l2_dev.name);
+
+		if (IS_ERR(dev->kthread_sdr_cap)) {
+			v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n");
+			err = PTR_ERR(dev->kthread_sdr_cap);
+			dev->kthread_sdr_cap = NULL;
+		}
+	}
+	if (err) {
+		struct vivid_buffer *buf, *tmp;
+
+		list_for_each_entry_safe(buf, tmp, &dev->sdr_cap_active, list) {
+			list_del(&buf->list);
+			vb2_buffer_done(&buf->vb.vb2_buf,
+					VB2_BUF_STATE_QUEUED);
+		}
+	}
+	return err;
+}
+
+/* abort streaming and wait for last buffer */
+static void sdr_cap_stop_streaming(struct vb2_queue *vq)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+
+	if (dev->kthread_sdr_cap == NULL)
+		return;
+
+	while (!list_empty(&dev->sdr_cap_active)) {
+		struct vivid_buffer *buf;
+
+		buf = list_entry(dev->sdr_cap_active.next,
+				struct vivid_buffer, list);
+		list_del(&buf->list);
+		v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req,
+					   &dev->ctrl_hdl_sdr_cap);
+		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+	}
+
+	/* shutdown control thread */
+	kthread_stop(dev->kthread_sdr_cap);
+	dev->kthread_sdr_cap = NULL;
+}
+
+static void sdr_cap_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_sdr_cap);
+}
+
+const struct vb2_ops vivid_sdr_cap_qops = {
+	.queue_setup		= sdr_cap_queue_setup,
+	.buf_prepare		= sdr_cap_buf_prepare,
+	.buf_queue		= sdr_cap_buf_queue,
+	.start_streaming	= sdr_cap_start_streaming,
+	.stop_streaming		= sdr_cap_stop_streaming,
+	.buf_request_complete	= sdr_cap_buf_request_complete,
+};
+
+int vivid_sdr_enum_freq_bands(struct file *file, void *priv,
+		struct v4l2_frequency_band *band)
+{
+	switch (band->tuner) {
+	case 0:
+		if (band->index >= ARRAY_SIZE(bands_adc))
+			return -EINVAL;
+		*band = bands_adc[band->index];
+		return 0;
+	case 1:
+		if (band->index >= ARRAY_SIZE(bands_fm))
+			return -EINVAL;
+		*band = bands_fm[band->index];
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+int vivid_sdr_g_frequency(struct file *file, void *priv,
+		struct v4l2_frequency *vf)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	switch (vf->tuner) {
+	case 0:
+		vf->frequency = dev->sdr_adc_freq;
+		vf->type = V4L2_TUNER_ADC;
+		return 0;
+	case 1:
+		vf->frequency = dev->sdr_fm_freq;
+		vf->type = V4L2_TUNER_RF;
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+int vivid_sdr_s_frequency(struct file *file, void *priv,
+		const struct v4l2_frequency *vf)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	unsigned freq = vf->frequency;
+	unsigned band;
+
+	switch (vf->tuner) {
+	case 0:
+		if (vf->type != V4L2_TUNER_ADC)
+			return -EINVAL;
+		if (freq < BAND_ADC_0)
+			band = 0;
+		else if (freq < BAND_ADC_1)
+			band = 1;
+		else
+			band = 2;
+
+		freq = clamp_t(unsigned, freq,
+				bands_adc[band].rangelow,
+				bands_adc[band].rangehigh);
+
+		if (vb2_is_streaming(&dev->vb_sdr_cap_q) &&
+		    freq != dev->sdr_adc_freq) {
+			/* resync the thread's timings */
+			dev->sdr_cap_seq_resync = true;
+		}
+		dev->sdr_adc_freq = freq;
+		return 0;
+	case 1:
+		if (vf->type != V4L2_TUNER_RF)
+			return -EINVAL;
+		dev->sdr_fm_freq = clamp_t(unsigned, freq,
+				bands_fm[0].rangelow,
+				bands_fm[0].rangehigh);
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+int vivid_sdr_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
+{
+	switch (vt->index) {
+	case 0:
+		strscpy(vt->name, "ADC", sizeof(vt->name));
+		vt->type = V4L2_TUNER_ADC;
+		vt->capability =
+			V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
+		vt->rangelow = bands_adc[0].rangelow;
+		vt->rangehigh = bands_adc[2].rangehigh;
+		return 0;
+	case 1:
+		strscpy(vt->name, "RF", sizeof(vt->name));
+		vt->type = V4L2_TUNER_RF;
+		vt->capability =
+			V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
+		vt->rangelow = bands_fm[0].rangelow;
+		vt->rangehigh = bands_fm[0].rangehigh;
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+int vivid_sdr_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt)
+{
+	if (vt->index > 1)
+		return -EINVAL;
+	return 0;
+}
+
+int vidioc_enum_fmt_sdr_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f)
+{
+	if (f->index >= ARRAY_SIZE(formats))
+		return -EINVAL;
+	f->pixelformat = formats[f->index].pixelformat;
+	return 0;
+}
+
+int vidioc_g_fmt_sdr_cap(struct file *file, void *priv, struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	f->fmt.sdr.pixelformat = dev->sdr_pixelformat;
+	f->fmt.sdr.buffersize = dev->sdr_buffersize;
+	return 0;
+}
+
+int vidioc_s_fmt_sdr_cap(struct file *file, void *priv, struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct vb2_queue *q = &dev->vb_sdr_cap_q;
+	int i;
+
+	if (vb2_is_busy(q))
+		return -EBUSY;
+
+	for (i = 0; i < ARRAY_SIZE(formats); i++) {
+		if (formats[i].pixelformat == f->fmt.sdr.pixelformat) {
+			dev->sdr_pixelformat = formats[i].pixelformat;
+			dev->sdr_buffersize = formats[i].buffersize;
+			f->fmt.sdr.buffersize = formats[i].buffersize;
+			return 0;
+		}
+	}
+	dev->sdr_pixelformat = formats[0].pixelformat;
+	dev->sdr_buffersize = formats[0].buffersize;
+	f->fmt.sdr.pixelformat = formats[0].pixelformat;
+	f->fmt.sdr.buffersize = formats[0].buffersize;
+	return 0;
+}
+
+int vidioc_try_fmt_sdr_cap(struct file *file, void *priv, struct v4l2_format *f)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(formats); i++) {
+		if (formats[i].pixelformat == f->fmt.sdr.pixelformat) {
+			f->fmt.sdr.buffersize = formats[i].buffersize;
+			return 0;
+		}
+	}
+	f->fmt.sdr.pixelformat = formats[0].pixelformat;
+	f->fmt.sdr.buffersize = formats[0].buffersize;
+	return 0;
+}
+
+#define FIXP_N    (15)
+#define FIXP_FRAC (1 << FIXP_N)
+#define FIXP_2PI  ((int)(2 * 3.141592653589 * FIXP_FRAC))
+#define M_100000PI (3.14159 * 100000)
+
+void vivid_sdr_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf)
+{
+	u8 *vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+	unsigned long i;
+	unsigned long plane_size = vb2_plane_size(&buf->vb.vb2_buf, 0);
+	s64 s64tmp;
+	s32 src_phase_step;
+	s32 mod_phase_step;
+	s32 fixp_i;
+	s32 fixp_q;
+
+	/* calculate phase step */
+	#define BEEP_FREQ 1000 /* 1kHz beep */
+	src_phase_step = DIV_ROUND_CLOSEST(FIXP_2PI * BEEP_FREQ,
+					   dev->sdr_adc_freq);
+
+	for (i = 0; i < plane_size; i += 2) {
+		mod_phase_step = fixp_cos32_rad(dev->sdr_fixp_src_phase,
+						FIXP_2PI) >> (31 - FIXP_N);
+
+		dev->sdr_fixp_src_phase += src_phase_step;
+		s64tmp = (s64) mod_phase_step * dev->sdr_fm_deviation;
+		dev->sdr_fixp_mod_phase += div_s64(s64tmp, M_100000PI);
+
+		/*
+		 * Transfer phase angle to [0, 2xPI] in order to avoid variable
+		 * overflow and make it suitable for cosine implementation
+		 * used, which does not support negative angles.
+		 */
+		dev->sdr_fixp_src_phase %= FIXP_2PI;
+		dev->sdr_fixp_mod_phase %= FIXP_2PI;
+
+		if (dev->sdr_fixp_mod_phase < 0)
+			dev->sdr_fixp_mod_phase += FIXP_2PI;
+
+		fixp_i = fixp_cos32_rad(dev->sdr_fixp_mod_phase, FIXP_2PI);
+		fixp_q = fixp_sin32_rad(dev->sdr_fixp_mod_phase, FIXP_2PI);
+
+		/* Normalize fraction values represented with 32 bit precision
+		 * to fixed point representation with FIXP_N bits */
+		fixp_i >>= (31 - FIXP_N);
+		fixp_q >>= (31 - FIXP_N);
+
+		switch (dev->sdr_pixelformat) {
+		case V4L2_SDR_FMT_CU8:
+			/* convert 'fixp float' to u8 [0, +255] */
+			/* u8 = X * 127.5 + 127.5; X is float [-1.0, +1.0] */
+			fixp_i = fixp_i * 1275 + FIXP_FRAC * 1275;
+			fixp_q = fixp_q * 1275 + FIXP_FRAC * 1275;
+			*vbuf++ = DIV_ROUND_CLOSEST(fixp_i, FIXP_FRAC * 10);
+			*vbuf++ = DIV_ROUND_CLOSEST(fixp_q, FIXP_FRAC * 10);
+			break;
+		case V4L2_SDR_FMT_CS8:
+			/* convert 'fixp float' to s8 [-128, +127] */
+			/* s8 = X * 127.5 - 0.5; X is float [-1.0, +1.0] */
+			fixp_i = fixp_i * 1275 - FIXP_FRAC * 5;
+			fixp_q = fixp_q * 1275 - FIXP_FRAC * 5;
+			*vbuf++ = DIV_ROUND_CLOSEST(fixp_i, FIXP_FRAC * 10);
+			*vbuf++ = DIV_ROUND_CLOSEST(fixp_q, FIXP_FRAC * 10);
+			break;
+		default:
+			break;
+		}
+	}
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-sdr-cap.h b/drivers/media/test-drivers/vivid/vivid-sdr-cap.h
new file mode 100644
index 000000000..3d8eeabbf
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-sdr-cap.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-sdr-cap.h - software defined radio support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_SDR_CAP_H_
+#define _VIVID_SDR_CAP_H_
+
+int vivid_sdr_enum_freq_bands(struct file *file, void *priv, struct v4l2_frequency_band *band);
+int vivid_sdr_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf);
+int vivid_sdr_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *vf);
+int vivid_sdr_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt);
+int vivid_sdr_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt);
+int vidioc_enum_fmt_sdr_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f);
+int vidioc_g_fmt_sdr_cap(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_s_fmt_sdr_cap(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_try_fmt_sdr_cap(struct file *file, void *priv, struct v4l2_format *f);
+void vivid_sdr_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf);
+
+extern const struct vb2_ops vivid_sdr_cap_qops;
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.c b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
new file mode 100644
index 000000000..36a781fa1
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
@@ -0,0 +1,336 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-touch-cap.c - touch support functions.
+ */
+
+#include "vivid-core.h"
+#include "vivid-kthread-touch.h"
+#include "vivid-vid-common.h"
+#include "vivid-touch-cap.h"
+
+static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
+				 unsigned int *nplanes, unsigned int sizes[],
+				 struct device *alloc_devs[])
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	struct v4l2_pix_format *f = &dev->tch_format;
+	unsigned int size = f->sizeimage;
+
+	if (*nplanes) {
+		if (*nplanes != 1)
+			return -EINVAL;
+		return sizes[0] < size ? -EINVAL : 0;
+	}
+
+	*nplanes = 1;
+	sizes[0] = size;
+	return 0;
+}
+
+static int touch_cap_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct v4l2_pix_format *f = &dev->tch_format;
+	unsigned int size = f->sizeimage;
+
+	if (dev->buf_prepare_error) {
+		/*
+		 * Error injection: test what happens if buf_prepare() returns
+		 * an error.
+		 */
+		dev->buf_prepare_error = false;
+		return -EINVAL;
+	}
+	if (vb2_plane_size(vb, 0) < size) {
+		dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
+			__func__, vb2_plane_size(vb, 0), size);
+		return -EINVAL;
+	}
+	vb2_set_plane_payload(vb, 0, size);
+
+	return 0;
+}
+
+static void touch_cap_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
+
+	vbuf->field = V4L2_FIELD_NONE;
+	spin_lock(&dev->slock);
+	list_add_tail(&buf->list, &dev->touch_cap_active);
+	spin_unlock(&dev->slock);
+}
+
+static int touch_cap_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	int err;
+
+	dev->touch_cap_seq_count = 0;
+	if (dev->start_streaming_error) {
+		dev->start_streaming_error = false;
+		err = -EINVAL;
+	} else {
+		err = vivid_start_generating_touch_cap(dev);
+	}
+	if (err) {
+		struct vivid_buffer *buf, *tmp;
+
+		list_for_each_entry_safe(buf, tmp,
+					 &dev->touch_cap_active, list) {
+			list_del(&buf->list);
+			vb2_buffer_done(&buf->vb.vb2_buf,
+					VB2_BUF_STATE_QUEUED);
+		}
+	}
+	return err;
+}
+
+/* abort streaming and wait for last buffer */
+static void touch_cap_stop_streaming(struct vb2_queue *vq)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+
+	vivid_stop_generating_touch_cap(dev);
+}
+
+static void touch_cap_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_touch_cap);
+}
+
+const struct vb2_ops vivid_touch_cap_qops = {
+	.queue_setup		= touch_cap_queue_setup,
+	.buf_prepare		= touch_cap_buf_prepare,
+	.buf_queue		= touch_cap_buf_queue,
+	.start_streaming	= touch_cap_start_streaming,
+	.stop_streaming		= touch_cap_stop_streaming,
+	.buf_request_complete	= touch_cap_buf_request_complete,
+};
+
+int vivid_enum_fmt_tch(struct file *file, void  *priv, struct v4l2_fmtdesc *f)
+{
+	if (f->index)
+		return -EINVAL;
+
+	f->pixelformat = V4L2_TCH_FMT_DELTA_TD16;
+	return 0;
+}
+
+int vivid_g_fmt_tch(struct file *file, void *priv, struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+	f->fmt.pix = dev->tch_format;
+	return 0;
+}
+
+int vivid_g_fmt_tch_mplane(struct file *file, void *priv, struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_format sp_fmt;
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+	sp_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	sp_fmt.fmt.pix = dev->tch_format;
+	fmt_sp2mp(&sp_fmt, f);
+	return 0;
+}
+
+int vivid_g_parm_tch(struct file *file, void *priv,
+		     struct v4l2_streamparm *parm)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (parm->type != (dev->multiplanar ?
+			   V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
+			   V4L2_BUF_TYPE_VIDEO_CAPTURE))
+		return -EINVAL;
+
+	parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
+	parm->parm.capture.timeperframe = dev->timeperframe_tch_cap;
+	parm->parm.capture.readbuffers  = 1;
+	return 0;
+}
+
+int vivid_enum_input_tch(struct file *file, void *priv, struct v4l2_input *inp)
+{
+	if (inp->index)
+		return -EINVAL;
+
+	inp->type = V4L2_INPUT_TYPE_TOUCH;
+	strscpy(inp->name, "Vivid Touch", sizeof(inp->name));
+	inp->capabilities = 0;
+	return 0;
+}
+
+int vivid_g_input_tch(struct file *file, void *priv, unsigned int *i)
+{
+	*i = 0;
+	return 0;
+}
+
+int vivid_set_touch(struct vivid_dev *dev, unsigned int i)
+{
+	struct v4l2_pix_format *f = &dev->tch_format;
+
+	if (i)
+		return -EINVAL;
+
+	f->pixelformat = V4L2_TCH_FMT_DELTA_TD16;
+	f->width =  VIVID_TCH_WIDTH;
+	f->height = VIVID_TCH_HEIGHT;
+	f->field = V4L2_FIELD_NONE;
+	f->colorspace = V4L2_COLORSPACE_RAW;
+	f->bytesperline = f->width * sizeof(s16);
+	f->sizeimage = f->width * f->height * sizeof(s16);
+	return 0;
+}
+
+int vivid_s_input_tch(struct file *file, void *priv, unsigned int i)
+{
+	return vivid_set_touch(video_drvdata(file), i);
+}
+
+static void vivid_fill_buff_noise(__s16 *tch_buf, int size)
+{
+	int i;
+
+	/* Fill 10% of the values within range -3 and 3, zero the others */
+	for (i = 0; i < size; i++) {
+		unsigned int rand = get_random_u32();
+
+		if (rand % 10)
+			tch_buf[i] = 0;
+		else
+			tch_buf[i] = (rand / 10) % 7 - 3;
+	}
+}
+
+static inline int get_random_pressure(void)
+{
+	return get_random_u32_below(VIVID_PRESSURE_LIMIT);
+}
+
+static void vivid_tch_buf_set(struct v4l2_pix_format *f,
+			      __s16 *tch_buf,
+			      int index)
+{
+	unsigned int x = index % f->width;
+	unsigned int y = index / f->width;
+	unsigned int offset = VIVID_MIN_PRESSURE;
+
+	tch_buf[index] = offset + get_random_pressure();
+	offset /= 2;
+	if (x)
+		tch_buf[index - 1] = offset + get_random_pressure();
+	if (x < f->width - 1)
+		tch_buf[index + 1] = offset + get_random_pressure();
+	if (y)
+		tch_buf[index - f->width] = offset + get_random_pressure();
+	if (y < f->height - 1)
+		tch_buf[index + f->width] = offset + get_random_pressure();
+	offset /= 2;
+	if (x && y)
+		tch_buf[index - 1 - f->width] = offset + get_random_pressure();
+	if (x < f->width - 1 && y)
+		tch_buf[index + 1 - f->width] = offset + get_random_pressure();
+	if (x && y < f->height - 1)
+		tch_buf[index - 1 + f->width] = offset + get_random_pressure();
+	if (x < f->width - 1 && y < f->height - 1)
+		tch_buf[index + 1 + f->width] = offset + get_random_pressure();
+}
+
+void vivid_fillbuff_tch(struct vivid_dev *dev, struct vivid_buffer *buf)
+{
+	struct v4l2_pix_format *f = &dev->tch_format;
+	int size = f->width * f->height;
+	int x, y, xstart, ystart, offset_x, offset_y;
+	unsigned int test_pattern, test_pat_idx, rand;
+
+	__s16 *tch_buf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+
+	buf->vb.sequence = dev->touch_cap_with_seq_wrap_count;
+	test_pattern = (buf->vb.sequence / TCH_SEQ_COUNT) % TEST_CASE_MAX;
+	test_pat_idx = buf->vb.sequence % TCH_SEQ_COUNT;
+
+	vivid_fill_buff_noise(tch_buf, size);
+
+	if (test_pat_idx >= TCH_PATTERN_COUNT)
+		return;
+
+	if (test_pat_idx == 0)
+		dev->tch_pat_random = get_random_u32();
+	rand = dev->tch_pat_random;
+
+	switch (test_pattern) {
+	case SINGLE_TAP:
+		if (test_pat_idx == 2)
+			vivid_tch_buf_set(f, tch_buf, rand % size);
+		break;
+	case DOUBLE_TAP:
+		if (test_pat_idx == 2 || test_pat_idx == 4)
+			vivid_tch_buf_set(f, tch_buf, rand % size);
+		break;
+	case TRIPLE_TAP:
+		if (test_pat_idx == 2 || test_pat_idx == 4 || test_pat_idx == 6)
+			vivid_tch_buf_set(f, tch_buf, rand % size);
+		break;
+	case MOVE_LEFT_TO_RIGHT:
+		vivid_tch_buf_set(f, tch_buf,
+				  (rand % f->height) * f->width +
+				  test_pat_idx *
+				  (f->width / TCH_PATTERN_COUNT));
+		break;
+	case ZOOM_IN:
+		x = f->width / 2;
+		y = f->height / 2;
+		offset_x = ((TCH_PATTERN_COUNT - 1 - test_pat_idx) * x) /
+				TCH_PATTERN_COUNT;
+		offset_y = ((TCH_PATTERN_COUNT - 1 - test_pat_idx) * y) /
+				TCH_PATTERN_COUNT;
+		vivid_tch_buf_set(f, tch_buf,
+				  (x - offset_x) + f->width * (y - offset_y));
+		vivid_tch_buf_set(f, tch_buf,
+				  (x + offset_x) + f->width * (y + offset_y));
+		break;
+	case ZOOM_OUT:
+		x = f->width / 2;
+		y = f->height / 2;
+		offset_x = (test_pat_idx * x) / TCH_PATTERN_COUNT;
+		offset_y = (test_pat_idx * y) / TCH_PATTERN_COUNT;
+		vivid_tch_buf_set(f, tch_buf,
+				  (x - offset_x) + f->width * (y - offset_y));
+		vivid_tch_buf_set(f, tch_buf,
+				  (x + offset_x) + f->width * (y + offset_y));
+		break;
+	case PALM_PRESS:
+		for (x = 0; x < f->width; x++)
+			for (y = f->height / 2; y < f->height; y++)
+				tch_buf[x + f->width * y] = VIVID_MIN_PRESSURE +
+							get_random_pressure();
+		break;
+	case MULTIPLE_PRESS:
+		/* 16 pressure points */
+		for (y = 0; y < 4; y++) {
+			for (x = 0; x < 4; x++) {
+				ystart = (y * f->height) / 4 + f->height / 8;
+				xstart = (x * f->width) / 4 + f->width / 8;
+				vivid_tch_buf_set(f, tch_buf,
+						  ystart * f->width + xstart);
+			}
+		}
+		break;
+	}
+#ifdef __BIG_ENDIAN__
+	for (x = 0; x < size; x++)
+		tch_buf[x] = (__force s16)__cpu_to_le16((u16)tch_buf[x]);
+#endif
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.h b/drivers/media/test-drivers/vivid/vivid-touch-cap.h
new file mode 100644
index 000000000..07e514046
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-touch-cap.h - touch support functions.
+ */
+#ifndef _VIVID_TOUCH_CAP_H_
+#define _VIVID_TOUCH_CAP_H_
+
+#define VIVID_TCH_HEIGHT	12
+#define VIVID_TCH_WIDTH		21
+#define VIVID_MIN_PRESSURE	180
+#define VIVID_PRESSURE_LIMIT	40
+#define TCH_SEQ_COUNT		16
+#define TCH_PATTERN_COUNT	12
+
+enum vivid_tch_test {
+	SINGLE_TAP,
+	DOUBLE_TAP,
+	TRIPLE_TAP,
+	MOVE_LEFT_TO_RIGHT,
+	ZOOM_IN,
+	ZOOM_OUT,
+	PALM_PRESS,
+	MULTIPLE_PRESS,
+	TEST_CASE_MAX
+};
+
+extern const struct vb2_ops vivid_touch_cap_qops;
+
+int vivid_enum_fmt_tch(struct file *file, void  *priv, struct v4l2_fmtdesc *f);
+int vivid_g_fmt_tch(struct file *file, void *priv, struct v4l2_format *f);
+int vivid_g_fmt_tch_mplane(struct file *file, void *priv, struct v4l2_format *f);
+int vivid_enum_input_tch(struct file *file, void *priv, struct v4l2_input *inp);
+int vivid_g_input_tch(struct file *file, void *priv, unsigned int *i);
+int vivid_s_input_tch(struct file *file, void *priv, unsigned int i);
+void vivid_fillbuff_tch(struct vivid_dev *dev, struct vivid_buffer *buf);
+int vivid_set_touch(struct vivid_dev *dev, unsigned int i);
+int vivid_g_parm_tch(struct file *file, void *priv,
+		     struct v4l2_streamparm *parm);
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-cap.c b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
new file mode 100644
index 000000000..791382a54
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
@@ -0,0 +1,359 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-vbi-cap.c - vbi capture support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+
+#include "vivid-core.h"
+#include "vivid-kthread-cap.h"
+#include "vivid-vbi-cap.h"
+#include "vivid-vbi-gen.h"
+#include "vivid-vid-common.h"
+
+static void vivid_sliced_vbi_cap_fill(struct vivid_dev *dev, unsigned seqnr)
+{
+	struct vivid_vbi_gen_data *vbi_gen = &dev->vbi_gen;
+	bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60;
+
+	vivid_vbi_gen_sliced(vbi_gen, is_60hz, seqnr);
+
+	if (!is_60hz) {
+		if (vivid_vid_can_loop(dev)) {
+			if (dev->vbi_out_have_wss) {
+				vbi_gen->data[12].data[0] = dev->vbi_out_wss[0];
+				vbi_gen->data[12].data[1] = dev->vbi_out_wss[1];
+			} else {
+				vbi_gen->data[12].id = 0;
+			}
+		} else {
+			switch (tpg_g_video_aspect(&dev->tpg)) {
+			case TPG_VIDEO_ASPECT_14X9_CENTRE:
+				vbi_gen->data[12].data[0] = 0x01;
+				break;
+			case TPG_VIDEO_ASPECT_16X9_CENTRE:
+				vbi_gen->data[12].data[0] = 0x0b;
+				break;
+			case TPG_VIDEO_ASPECT_16X9_ANAMORPHIC:
+				vbi_gen->data[12].data[0] = 0x07;
+				break;
+			case TPG_VIDEO_ASPECT_4X3:
+			default:
+				vbi_gen->data[12].data[0] = 0x08;
+				break;
+			}
+		}
+	} else if (vivid_vid_can_loop(dev) && is_60hz) {
+		if (dev->vbi_out_have_cc[0]) {
+			vbi_gen->data[0].data[0] = dev->vbi_out_cc[0][0];
+			vbi_gen->data[0].data[1] = dev->vbi_out_cc[0][1];
+		} else {
+			vbi_gen->data[0].id = 0;
+		}
+		if (dev->vbi_out_have_cc[1]) {
+			vbi_gen->data[1].data[0] = dev->vbi_out_cc[1][0];
+			vbi_gen->data[1].data[1] = dev->vbi_out_cc[1][1];
+		} else {
+			vbi_gen->data[1].id = 0;
+		}
+	}
+}
+
+static void vivid_g_fmt_vbi_cap(struct vivid_dev *dev, struct v4l2_vbi_format *vbi)
+{
+	bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60;
+
+	vbi->sampling_rate = 27000000;
+	vbi->offset = 24;
+	vbi->samples_per_line = 1440;
+	vbi->sample_format = V4L2_PIX_FMT_GREY;
+	vbi->start[0] = is_60hz ? V4L2_VBI_ITU_525_F1_START + 9 : V4L2_VBI_ITU_625_F1_START + 5;
+	vbi->start[1] = is_60hz ? V4L2_VBI_ITU_525_F2_START + 9 : V4L2_VBI_ITU_625_F2_START + 5;
+	vbi->count[0] = vbi->count[1] = is_60hz ? 12 : 18;
+	vbi->flags = dev->vbi_cap_interlaced ? V4L2_VBI_INTERLACED : 0;
+	vbi->reserved[0] = 0;
+	vbi->reserved[1] = 0;
+}
+
+void vivid_raw_vbi_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf)
+{
+	struct v4l2_vbi_format vbi;
+	u8 *vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+
+	vivid_g_fmt_vbi_cap(dev, &vbi);
+	buf->vb.sequence = dev->vbi_cap_seq_count;
+	if (dev->field_cap == V4L2_FIELD_ALTERNATE)
+		buf->vb.sequence /= 2;
+
+	vivid_sliced_vbi_cap_fill(dev, buf->vb.sequence);
+
+	memset(vbuf, 0x10, vb2_plane_size(&buf->vb.vb2_buf, 0));
+
+	if (!VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input]))
+		vivid_vbi_gen_raw(&dev->vbi_gen, &vbi, vbuf);
+}
+
+
+void vivid_sliced_vbi_cap_process(struct vivid_dev *dev,
+			struct vivid_buffer *buf)
+{
+	struct v4l2_sliced_vbi_data *vbuf =
+			vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+
+	buf->vb.sequence = dev->vbi_cap_seq_count;
+	if (dev->field_cap == V4L2_FIELD_ALTERNATE)
+		buf->vb.sequence /= 2;
+
+	vivid_sliced_vbi_cap_fill(dev, buf->vb.sequence);
+
+	memset(vbuf, 0, vb2_plane_size(&buf->vb.vb2_buf, 0));
+	if (!VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input])) {
+		unsigned i;
+
+		for (i = 0; i < 25; i++)
+			vbuf[i] = dev->vbi_gen.data[i];
+	}
+}
+
+static int vbi_cap_queue_setup(struct vb2_queue *vq,
+		       unsigned *nbuffers, unsigned *nplanes,
+		       unsigned sizes[], struct device *alloc_devs[])
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60;
+	unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
+		36 * sizeof(struct v4l2_sliced_vbi_data) :
+		1440 * 2 * (is_60hz ? 12 : 18);
+
+	if (!vivid_is_sdtv_cap(dev))
+		return -EINVAL;
+
+	if (*nplanes)
+		return sizes[0] < size ? -EINVAL : 0;
+	sizes[0] = size;
+
+	*nplanes = 1;
+	return 0;
+}
+
+static int vbi_cap_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60;
+	unsigned size = vb->vb2_queue->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
+		36 * sizeof(struct v4l2_sliced_vbi_data) :
+		1440 * 2 * (is_60hz ? 12 : 18);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (dev->buf_prepare_error) {
+		/*
+		 * Error injection: test what happens if buf_prepare() returns
+		 * an error.
+		 */
+		dev->buf_prepare_error = false;
+		return -EINVAL;
+	}
+	if (vb2_plane_size(vb, 0) < size) {
+		dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
+				__func__, vb2_plane_size(vb, 0), size);
+		return -EINVAL;
+	}
+	vb2_set_plane_payload(vb, 0, size);
+
+	return 0;
+}
+
+static void vbi_cap_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	spin_lock(&dev->slock);
+	list_add_tail(&buf->list, &dev->vbi_cap_active);
+	spin_unlock(&dev->slock);
+}
+
+static int vbi_cap_start_streaming(struct vb2_queue *vq, unsigned count)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	int err;
+
+	dprintk(dev, 1, "%s\n", __func__);
+	dev->vbi_cap_seq_count = 0;
+	if (dev->start_streaming_error) {
+		dev->start_streaming_error = false;
+		err = -EINVAL;
+	} else {
+		err = vivid_start_generating_vid_cap(dev, &dev->vbi_cap_streaming);
+	}
+	if (err) {
+		struct vivid_buffer *buf, *tmp;
+
+		list_for_each_entry_safe(buf, tmp, &dev->vbi_cap_active, list) {
+			list_del(&buf->list);
+			vb2_buffer_done(&buf->vb.vb2_buf,
+					VB2_BUF_STATE_QUEUED);
+		}
+	}
+	return err;
+}
+
+/* abort streaming and wait for last buffer */
+static void vbi_cap_stop_streaming(struct vb2_queue *vq)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+
+	dprintk(dev, 1, "%s\n", __func__);
+	vivid_stop_generating_vid_cap(dev, &dev->vbi_cap_streaming);
+}
+
+static void vbi_cap_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vbi_cap);
+}
+
+const struct vb2_ops vivid_vbi_cap_qops = {
+	.queue_setup		= vbi_cap_queue_setup,
+	.buf_prepare		= vbi_cap_buf_prepare,
+	.buf_queue		= vbi_cap_buf_queue,
+	.start_streaming	= vbi_cap_start_streaming,
+	.stop_streaming		= vbi_cap_stop_streaming,
+	.buf_request_complete	= vbi_cap_buf_request_complete,
+};
+
+int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_vbi_format *vbi = &f->fmt.vbi;
+
+	if (!vivid_is_sdtv_cap(dev) || !dev->has_raw_vbi_cap)
+		return -EINVAL;
+
+	vivid_g_fmt_vbi_cap(dev, vbi);
+	return 0;
+}
+
+int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	int ret = vidioc_g_fmt_vbi_cap(file, priv, f);
+
+	if (ret)
+		return ret;
+	if (f->type != V4L2_BUF_TYPE_VBI_CAPTURE && vb2_is_busy(&dev->vb_vbi_cap_q))
+		return -EBUSY;
+	return 0;
+}
+
+void vivid_fill_service_lines(struct v4l2_sliced_vbi_format *vbi, u32 service_set)
+{
+	vbi->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
+	vbi->service_set = service_set;
+	memset(vbi->service_lines, 0, sizeof(vbi->service_lines));
+	memset(vbi->reserved, 0, sizeof(vbi->reserved));
+
+	if (vbi->service_set == 0)
+		return;
+
+	if (vbi->service_set & V4L2_SLICED_CAPTION_525) {
+		vbi->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
+		vbi->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
+	}
+	if (vbi->service_set & V4L2_SLICED_WSS_625) {
+		unsigned i;
+
+		for (i = 7; i <= 18; i++)
+			vbi->service_lines[0][i] =
+			vbi->service_lines[1][i] = V4L2_SLICED_TELETEXT_B;
+		vbi->service_lines[0][23] = V4L2_SLICED_WSS_625;
+	}
+}
+
+int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv, struct v4l2_format *fmt)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
+
+	if (!vivid_is_sdtv_cap(dev) || !dev->has_sliced_vbi_cap)
+		return -EINVAL;
+
+	vivid_fill_service_lines(vbi, dev->service_set_cap);
+	return 0;
+}
+
+int vidioc_try_fmt_sliced_vbi_cap(struct file *file, void *priv, struct v4l2_format *fmt)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
+	bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60;
+	u32 service_set = vbi->service_set;
+
+	if (!vivid_is_sdtv_cap(dev) || !dev->has_sliced_vbi_cap)
+		return -EINVAL;
+
+	service_set &= is_60hz ? V4L2_SLICED_CAPTION_525 :
+				 V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
+	vivid_fill_service_lines(vbi, service_set);
+	return 0;
+}
+
+int vidioc_s_fmt_sliced_vbi_cap(struct file *file, void *priv, struct v4l2_format *fmt)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
+	int ret = vidioc_try_fmt_sliced_vbi_cap(file, priv, fmt);
+
+	if (ret)
+		return ret;
+	if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE && vb2_is_busy(&dev->vb_vbi_cap_q))
+		return -EBUSY;
+	dev->service_set_cap = vbi->service_set;
+	return 0;
+}
+
+int vidioc_g_sliced_vbi_cap(struct file *file, void *priv, struct v4l2_sliced_vbi_cap *cap)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct video_device *vdev = video_devdata(file);
+	bool is_60hz;
+
+	if (vdev->vfl_dir == VFL_DIR_RX) {
+		is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60;
+		if (!vivid_is_sdtv_cap(dev) || !dev->has_sliced_vbi_cap ||
+		    cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
+			return -EINVAL;
+	} else {
+		is_60hz = dev->std_out & V4L2_STD_525_60;
+		if (!vivid_is_svid_out(dev) || !dev->has_sliced_vbi_out ||
+		    cap->type != V4L2_BUF_TYPE_SLICED_VBI_OUTPUT)
+			return -EINVAL;
+	}
+
+	cap->service_set = is_60hz ? V4L2_SLICED_CAPTION_525 :
+				     V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
+	if (is_60hz) {
+		cap->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
+		cap->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
+	} else {
+		unsigned i;
+
+		for (i = 7; i <= 18; i++)
+			cap->service_lines[0][i] =
+			cap->service_lines[1][i] = V4L2_SLICED_TELETEXT_B;
+		cap->service_lines[0][23] = V4L2_SLICED_WSS_625;
+	}
+	return 0;
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-cap.h b/drivers/media/test-drivers/vivid/vivid-vbi-cap.h
new file mode 100644
index 000000000..ec2d200c9
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-cap.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-vbi-cap.h - vbi capture support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_VBI_CAP_H_
+#define _VIVID_VBI_CAP_H_
+
+void vivid_fill_time_of_day_packet(u8 *packet);
+void vivid_raw_vbi_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf);
+void vivid_sliced_vbi_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf);
+void vivid_sliced_vbi_out_process(struct vivid_dev *dev, struct vivid_buffer *buf);
+int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
+					struct v4l2_format *f);
+int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
+					struct v4l2_format *f);
+int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv, struct v4l2_format *fmt);
+int vidioc_try_fmt_sliced_vbi_cap(struct file *file, void *priv, struct v4l2_format *fmt);
+int vidioc_s_fmt_sliced_vbi_cap(struct file *file, void *priv, struct v4l2_format *fmt);
+int vidioc_g_sliced_vbi_cap(struct file *file, void *priv, struct v4l2_sliced_vbi_cap *cap);
+
+void vivid_fill_service_lines(struct v4l2_sliced_vbi_format *vbi, u32 service_set);
+
+extern const struct vb2_ops vivid_vbi_cap_qops;
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-gen.c b/drivers/media/test-drivers/vivid/vivid-vbi-gen.c
new file mode 100644
index 000000000..e0f4151bd
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-gen.c
@@ -0,0 +1,306 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-vbi-gen.c - vbi generator support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/bitops.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/ktime.h>
+#include <linux/string.h>
+#include <linux/videodev2.h>
+
+#include "vivid-vbi-gen.h"
+
+static void wss_insert(u8 *wss, u32 val, unsigned size)
+{
+	while (size--)
+		*wss++ = (val & (1 << size)) ? 0xc0 : 0x10;
+}
+
+static void vivid_vbi_gen_wss_raw(const struct v4l2_sliced_vbi_data *data,
+		u8 *buf, unsigned sampling_rate)
+{
+	const unsigned rate = 5000000;	/* WSS has a 5 MHz transmission rate */
+	u8 wss[29 + 24 + 24 + 24 + 18 + 18] = { 0 };
+	const unsigned zero = 0x07;
+	const unsigned one = 0x38;
+	unsigned bit = 0;
+	u16 wss_data;
+	int i;
+
+	wss_insert(wss + bit, 0x1f1c71c7, 29); bit += 29;
+	wss_insert(wss + bit, 0x1e3c1f, 24); bit += 24;
+
+	wss_data = (data->data[1] << 8) | data->data[0];
+	for (i = 0; i <= 13; i++, bit += 6)
+		wss_insert(wss + bit, (wss_data & (1 << i)) ? one : zero, 6);
+
+	for (i = 0, bit = 0; bit < sizeof(wss); bit++) {
+		unsigned n = ((bit + 1) * sampling_rate) / rate;
+
+		while (i < n)
+			buf[i++] = wss[bit];
+	}
+}
+
+static void vivid_vbi_gen_teletext_raw(const struct v4l2_sliced_vbi_data *data,
+		u8 *buf, unsigned sampling_rate)
+{
+	const unsigned rate = 6937500 / 10;	/* Teletext has a 6.9375 MHz transmission rate */
+	u8 teletext[45] = { 0x55, 0x55, 0x27 };
+	unsigned bit = 0;
+	int i;
+
+	memcpy(teletext + 3, data->data, sizeof(teletext) - 3);
+	/* prevents 32 bit overflow */
+	sampling_rate /= 10;
+
+	for (i = 0, bit = 0; bit < sizeof(teletext) * 8; bit++) {
+		unsigned n = ((bit + 1) * sampling_rate) / rate;
+		u8 val = (teletext[bit / 8] & (1 << (bit & 7))) ? 0xc0 : 0x10;
+
+		while (i < n)
+			buf[i++] = val;
+	}
+}
+
+static void cc_insert(u8 *cc, u8 ch)
+{
+	unsigned tot = 0;
+	unsigned i;
+
+	for (i = 0; i < 7; i++) {
+		cc[2 * i] = cc[2 * i + 1] = (ch & (1 << i)) ? 1 : 0;
+		tot += cc[2 * i];
+	}
+	cc[14] = cc[15] = !(tot & 1);
+}
+
+#define CC_PREAMBLE_BITS (14 + 4 + 2)
+
+static void vivid_vbi_gen_cc_raw(const struct v4l2_sliced_vbi_data *data,
+		u8 *buf, unsigned sampling_rate)
+{
+	const unsigned rate = 1000000;	/* CC has a 1 MHz transmission rate */
+
+	u8 cc[CC_PREAMBLE_BITS + 2 * 16] = {
+		/* Clock run-in: 7 cycles */
+		0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1,
+		/* 2 cycles of 0 */
+		0, 0, 0, 0,
+		/* Start bit of 1 (each bit is two cycles) */
+		1, 1
+	};
+	unsigned bit, i;
+
+	cc_insert(cc + CC_PREAMBLE_BITS, data->data[0]);
+	cc_insert(cc + CC_PREAMBLE_BITS + 16, data->data[1]);
+
+	for (i = 0, bit = 0; bit < sizeof(cc); bit++) {
+		unsigned n = ((bit + 1) * sampling_rate) / rate;
+
+		while (i < n)
+			buf[i++] = cc[bit] ? 0xc0 : 0x10;
+	}
+}
+
+void vivid_vbi_gen_raw(const struct vivid_vbi_gen_data *vbi,
+		const struct v4l2_vbi_format *vbi_fmt, u8 *buf)
+{
+	unsigned idx;
+
+	for (idx = 0; idx < 25; idx++) {
+		const struct v4l2_sliced_vbi_data *data = vbi->data + idx;
+		unsigned start_2nd_field;
+		unsigned line = data->line;
+		u8 *linebuf = buf;
+
+		start_2nd_field = (data->id & V4L2_SLICED_VBI_525) ? 263 : 313;
+		if (data->field)
+			line += start_2nd_field;
+		line -= vbi_fmt->start[data->field];
+
+		if (vbi_fmt->flags & V4L2_VBI_INTERLACED)
+			linebuf += (line * 2 + data->field) *
+				vbi_fmt->samples_per_line;
+		else
+			linebuf += (line + data->field * vbi_fmt->count[0]) *
+				vbi_fmt->samples_per_line;
+		if (data->id == V4L2_SLICED_CAPTION_525)
+			vivid_vbi_gen_cc_raw(data, linebuf, vbi_fmt->sampling_rate);
+		else if (data->id == V4L2_SLICED_WSS_625)
+			vivid_vbi_gen_wss_raw(data, linebuf, vbi_fmt->sampling_rate);
+		else if (data->id == V4L2_SLICED_TELETEXT_B)
+			vivid_vbi_gen_teletext_raw(data, linebuf, vbi_fmt->sampling_rate);
+	}
+}
+
+static const u8 vivid_cc_sequence1[30] = {
+	0x14, 0x20,	/* Resume Caption Loading */
+	'H',  'e',
+	'l',  'l',
+	'o',  ' ',
+	'w',  'o',
+	'r',  'l',
+	'd',  '!',
+	0x14, 0x2f,	/* End of Caption */
+};
+
+static const u8 vivid_cc_sequence2[30] = {
+	0x14, 0x20,	/* Resume Caption Loading */
+	'C',  'l',
+	'o',  's',
+	'e',  'd',
+	' ',  'c',
+	'a',  'p',
+	't',  'i',
+	'o',  'n',
+	's',  ' ',
+	't',  'e',
+	's',  't',
+	0x14, 0x2f,	/* End of Caption */
+};
+
+static u8 calc_parity(u8 val)
+{
+	return val | (parity8(val) ? 0 : 0x80);
+}
+
+static void vivid_vbi_gen_set_time_of_day(u8 *packet)
+{
+	struct tm tm;
+	u8 checksum, i;
+
+	time64_to_tm(ktime_get_real_seconds(), 0, &tm);
+	packet[0] = calc_parity(0x07);
+	packet[1] = calc_parity(0x01);
+	packet[2] = calc_parity(0x40 | tm.tm_min);
+	packet[3] = calc_parity(0x40 | tm.tm_hour);
+	packet[4] = calc_parity(0x40 | tm.tm_mday);
+	if (tm.tm_mday == 1 && tm.tm_mon == 2 &&
+	    sys_tz.tz_minuteswest > tm.tm_min + tm.tm_hour * 60)
+		packet[4] = calc_parity(0x60 | tm.tm_mday);
+	packet[5] = calc_parity(0x40 | (1 + tm.tm_mon));
+	packet[6] = calc_parity(0x40 | (1 + tm.tm_wday));
+	packet[7] = calc_parity(0x40 | ((tm.tm_year - 90) & 0x3f));
+	packet[8] = calc_parity(0x0f);
+	for (checksum = i = 0; i <= 8; i++)
+		checksum += packet[i] & 0x7f;
+	packet[9] = calc_parity(0x100 - checksum);
+	packet[10] = calc_parity(0x07);
+	packet[11] = calc_parity(0x04);
+	if (sys_tz.tz_minuteswest >= 0)
+		packet[12] = calc_parity(0x40 | ((sys_tz.tz_minuteswest / 60) & 0x1f));
+	else
+		packet[12] = calc_parity(0x40 | ((24 + sys_tz.tz_minuteswest / 60) & 0x1f));
+	packet[13] = calc_parity(0);
+	packet[14] = calc_parity(0x0f);
+	for (checksum = 0, i = 10; i <= 14; i++)
+		checksum += packet[i] & 0x7f;
+	packet[15] = calc_parity(0x100 - checksum);
+}
+
+static const u8 hamming[16] = {
+	0x15, 0x02, 0x49, 0x5e, 0x64, 0x73, 0x38, 0x2f,
+	0xd0, 0xc7, 0x8c, 0x9b, 0xa1, 0xb6, 0xfd, 0xea
+};
+
+static void vivid_vbi_gen_teletext(u8 *packet, unsigned line, unsigned frame)
+{
+	unsigned offset = 2;
+	unsigned i;
+
+	packet[0] = hamming[1 + ((line & 1) << 3)];
+	packet[1] = hamming[line >> 1];
+	memset(packet + 2, 0x20, 40);
+	if (line == 0) {
+		/* subcode */
+		packet[2] = hamming[frame % 10];
+		packet[3] = hamming[frame / 10];
+		packet[4] = hamming[0];
+		packet[5] = hamming[0];
+		packet[6] = hamming[0];
+		packet[7] = hamming[0];
+		packet[8] = hamming[0];
+		packet[9] = hamming[1];
+		offset = 10;
+	}
+	packet += offset;
+	memcpy(packet, "Page: 100 Row: 10", 17);
+	packet[7] = '0' + frame / 10;
+	packet[8] = '0' + frame % 10;
+	packet[15] = '0' + line / 10;
+	packet[16] = '0' + line % 10;
+	for (i = 0; i < 42 - offset; i++)
+		packet[i] = calc_parity(packet[i]);
+}
+
+void vivid_vbi_gen_sliced(struct vivid_vbi_gen_data *vbi,
+		bool is_60hz, unsigned seqnr)
+{
+	struct v4l2_sliced_vbi_data *data0 = vbi->data;
+	struct v4l2_sliced_vbi_data *data1 = vbi->data + 1;
+	unsigned frame = seqnr % 60;
+
+	memset(vbi->data, 0, sizeof(vbi->data));
+
+	if (!is_60hz) {
+		unsigned i;
+
+		for (i = 0; i <= 11; i++) {
+			data0->id = V4L2_SLICED_TELETEXT_B;
+			data0->line = 7 + i;
+			vivid_vbi_gen_teletext(data0->data, i, frame);
+			data0++;
+		}
+		data0->id = V4L2_SLICED_WSS_625;
+		data0->line = 23;
+		/* 4x3 video aspect ratio */
+		data0->data[0] = 0x08;
+		data0++;
+		for (i = 0; i <= 11; i++) {
+			data0->id = V4L2_SLICED_TELETEXT_B;
+			data0->field = 1;
+			data0->line = 7 + i;
+			vivid_vbi_gen_teletext(data0->data, 12 + i, frame);
+			data0++;
+		}
+		return;
+	}
+
+	data0->id = V4L2_SLICED_CAPTION_525;
+	data0->line = 21;
+	data1->id = V4L2_SLICED_CAPTION_525;
+	data1->field = 1;
+	data1->line = 21;
+
+	if (frame < 15) {
+		data0->data[0] = calc_parity(vivid_cc_sequence1[2 * frame]);
+		data0->data[1] = calc_parity(vivid_cc_sequence1[2 * frame + 1]);
+	} else if (frame >= 30 && frame < 45) {
+		frame -= 30;
+		data0->data[0] = calc_parity(vivid_cc_sequence2[2 * frame]);
+		data0->data[1] = calc_parity(vivid_cc_sequence2[2 * frame + 1]);
+	} else {
+		data0->data[0] = calc_parity(0);
+		data0->data[1] = calc_parity(0);
+	}
+
+	frame = seqnr % (30 * 60);
+	switch (frame) {
+	case 0:
+		vivid_vbi_gen_set_time_of_day(vbi->time_of_day_packet);
+		fallthrough;
+	case 1 ... 7:
+		data1->data[0] = vbi->time_of_day_packet[frame * 2];
+		data1->data[1] = vbi->time_of_day_packet[frame * 2 + 1];
+		break;
+	default:
+		data1->data[0] = calc_parity(0);
+		data1->data[1] = calc_parity(0);
+		break;
+	}
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-gen.h b/drivers/media/test-drivers/vivid/vivid-vbi-gen.h
new file mode 100644
index 000000000..2657a7f55
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-gen.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-vbi-gen.h - vbi generator support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_VBI_GEN_H_
+#define _VIVID_VBI_GEN_H_
+
+struct vivid_vbi_gen_data {
+	struct v4l2_sliced_vbi_data data[25];
+	u8 time_of_day_packet[16];
+};
+
+void vivid_vbi_gen_sliced(struct vivid_vbi_gen_data *vbi,
+		bool is_60hz, unsigned seqnr);
+void vivid_vbi_gen_raw(const struct vivid_vbi_gen_data *vbi,
+		const struct v4l2_vbi_format *vbi_fmt, u8 *buf);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-out.c b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
new file mode 100644
index 000000000..7b3ea9674
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
@@ -0,0 +1,247 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-vbi-out.c - vbi output support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+
+#include "vivid-core.h"
+#include "vivid-kthread-out.h"
+#include "vivid-vbi-out.h"
+#include "vivid-vbi-cap.h"
+
+static int vbi_out_queue_setup(struct vb2_queue *vq,
+		       unsigned *nbuffers, unsigned *nplanes,
+		       unsigned sizes[], struct device *alloc_devs[])
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	bool is_60hz = dev->std_out & V4L2_STD_525_60;
+	unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ?
+		36 * sizeof(struct v4l2_sliced_vbi_data) :
+		1440 * 2 * (is_60hz ? 12 : 18);
+
+	if (!vivid_is_svid_out(dev))
+		return -EINVAL;
+
+	if (*nplanes)
+		return sizes[0] < size ? -EINVAL : 0;
+	sizes[0] = size;
+
+	*nplanes = 1;
+	return 0;
+}
+
+static int vbi_out_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	bool is_60hz = dev->std_out & V4L2_STD_525_60;
+	unsigned size = vb->vb2_queue->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ?
+		36 * sizeof(struct v4l2_sliced_vbi_data) :
+		1440 * 2 * (is_60hz ? 12 : 18);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (dev->buf_prepare_error) {
+		/*
+		 * Error injection: test what happens if buf_prepare() returns
+		 * an error.
+		 */
+		dev->buf_prepare_error = false;
+		return -EINVAL;
+	}
+	if (vb2_plane_size(vb, 0) < size) {
+		dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
+				__func__, vb2_plane_size(vb, 0), size);
+		return -EINVAL;
+	}
+	vb2_set_plane_payload(vb, 0, size);
+
+	return 0;
+}
+
+static void vbi_out_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	spin_lock(&dev->slock);
+	list_add_tail(&buf->list, &dev->vbi_out_active);
+	spin_unlock(&dev->slock);
+}
+
+static int vbi_out_start_streaming(struct vb2_queue *vq, unsigned count)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	int err;
+
+	dprintk(dev, 1, "%s\n", __func__);
+	dev->vbi_out_seq_count = 0;
+	if (dev->start_streaming_error) {
+		dev->start_streaming_error = false;
+		err = -EINVAL;
+	} else {
+		err = vivid_start_generating_vid_out(dev, &dev->vbi_out_streaming);
+	}
+	if (err) {
+		struct vivid_buffer *buf, *tmp;
+
+		list_for_each_entry_safe(buf, tmp, &dev->vbi_out_active, list) {
+			list_del(&buf->list);
+			vb2_buffer_done(&buf->vb.vb2_buf,
+					VB2_BUF_STATE_QUEUED);
+		}
+	}
+	return err;
+}
+
+/* abort streaming and wait for last buffer */
+static void vbi_out_stop_streaming(struct vb2_queue *vq)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+
+	dprintk(dev, 1, "%s\n", __func__);
+	vivid_stop_generating_vid_out(dev, &dev->vbi_out_streaming);
+	dev->vbi_out_have_wss = false;
+	dev->vbi_out_have_cc[0] = false;
+	dev->vbi_out_have_cc[1] = false;
+}
+
+static void vbi_out_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vbi_out);
+}
+
+const struct vb2_ops vivid_vbi_out_qops = {
+	.queue_setup		= vbi_out_queue_setup,
+	.buf_prepare		= vbi_out_buf_prepare,
+	.buf_queue		= vbi_out_buf_queue,
+	.start_streaming	= vbi_out_start_streaming,
+	.stop_streaming		= vbi_out_stop_streaming,
+	.buf_request_complete	= vbi_out_buf_request_complete,
+};
+
+int vidioc_g_fmt_vbi_out(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_vbi_format *vbi = &f->fmt.vbi;
+	bool is_60hz = dev->std_out & V4L2_STD_525_60;
+
+	if (!vivid_is_svid_out(dev) || !dev->has_raw_vbi_out)
+		return -EINVAL;
+
+	vbi->sampling_rate = 25000000;
+	vbi->offset = 24;
+	vbi->samples_per_line = 1440;
+	vbi->sample_format = V4L2_PIX_FMT_GREY;
+	vbi->start[0] = is_60hz ? V4L2_VBI_ITU_525_F1_START + 9 : V4L2_VBI_ITU_625_F1_START + 5;
+	vbi->start[1] = is_60hz ? V4L2_VBI_ITU_525_F2_START + 9 : V4L2_VBI_ITU_625_F2_START + 5;
+	vbi->count[0] = vbi->count[1] = is_60hz ? 12 : 18;
+	vbi->flags = dev->vbi_cap_interlaced ? V4L2_VBI_INTERLACED : 0;
+	vbi->reserved[0] = 0;
+	vbi->reserved[1] = 0;
+	return 0;
+}
+
+int vidioc_s_fmt_vbi_out(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	int ret = vidioc_g_fmt_vbi_out(file, priv, f);
+
+	if (ret)
+		return ret;
+	if (vb2_is_busy(&dev->vb_vbi_out_q))
+		return -EBUSY;
+	dev->stream_sliced_vbi_out = false;
+	dev->vbi_out_dev.queue->type = V4L2_BUF_TYPE_VBI_OUTPUT;
+	return 0;
+}
+
+int vidioc_g_fmt_sliced_vbi_out(struct file *file, void *priv, struct v4l2_format *fmt)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
+
+	if (!vivid_is_svid_out(dev) || !dev->has_sliced_vbi_out)
+		return -EINVAL;
+
+	vivid_fill_service_lines(vbi, dev->service_set_out);
+	return 0;
+}
+
+int vidioc_try_fmt_sliced_vbi_out(struct file *file, void *priv, struct v4l2_format *fmt)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
+	bool is_60hz = dev->std_out & V4L2_STD_525_60;
+	u32 service_set = vbi->service_set;
+
+	if (!vivid_is_svid_out(dev) || !dev->has_sliced_vbi_out)
+		return -EINVAL;
+
+	service_set &= is_60hz ? V4L2_SLICED_CAPTION_525 :
+				 V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
+	vivid_fill_service_lines(vbi, service_set);
+	return 0;
+}
+
+int vidioc_s_fmt_sliced_vbi_out(struct file *file, void *priv,
+		struct v4l2_format *fmt)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
+	int ret = vidioc_try_fmt_sliced_vbi_out(file, priv, fmt);
+
+	if (ret)
+		return ret;
+	if (vb2_is_busy(&dev->vb_vbi_out_q))
+		return -EBUSY;
+	dev->service_set_out = vbi->service_set;
+	dev->stream_sliced_vbi_out = true;
+	dev->vbi_out_dev.queue->type = V4L2_BUF_TYPE_SLICED_VBI_OUTPUT;
+	return 0;
+}
+
+void vivid_sliced_vbi_out_process(struct vivid_dev *dev,
+		struct vivid_buffer *buf)
+{
+	struct v4l2_sliced_vbi_data *vbi =
+		vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+	unsigned elems =
+		vb2_get_plane_payload(&buf->vb.vb2_buf, 0) / sizeof(*vbi);
+
+	dev->vbi_out_have_cc[0] = false;
+	dev->vbi_out_have_cc[1] = false;
+	dev->vbi_out_have_wss = false;
+	while (elems--) {
+		switch (vbi->id) {
+		case V4L2_SLICED_CAPTION_525:
+			if ((dev->std_out & V4L2_STD_525_60) && vbi->line == 21) {
+				dev->vbi_out_have_cc[!!vbi->field] = true;
+				dev->vbi_out_cc[!!vbi->field][0] = vbi->data[0];
+				dev->vbi_out_cc[!!vbi->field][1] = vbi->data[1];
+			}
+			break;
+		case V4L2_SLICED_WSS_625:
+			if ((dev->std_out & V4L2_STD_625_50) &&
+			    vbi->field == 0 && vbi->line == 23) {
+				dev->vbi_out_have_wss = true;
+				dev->vbi_out_wss[0] = vbi->data[0];
+				dev->vbi_out_wss[1] = vbi->data[1];
+			}
+			break;
+		}
+		vbi++;
+	}
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-out.h b/drivers/media/test-drivers/vivid/vivid-vbi-out.h
new file mode 100644
index 000000000..a28e55519
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-out.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-vbi-out.h - vbi output support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_VBI_OUT_H_
+#define _VIVID_VBI_OUT_H_
+
+void vivid_sliced_vbi_out_process(struct vivid_dev *dev, struct vivid_buffer *buf);
+int vidioc_g_fmt_vbi_out(struct file *file, void *priv,
+					struct v4l2_format *f);
+int vidioc_s_fmt_vbi_out(struct file *file, void *priv,
+					struct v4l2_format *f);
+int vidioc_g_fmt_sliced_vbi_out(struct file *file, void *priv, struct v4l2_format *fmt);
+int vidioc_try_fmt_sliced_vbi_out(struct file *file, void *priv, struct v4l2_format *fmt);
+int vidioc_s_fmt_sliced_vbi_out(struct file *file, void *priv, struct v4l2_format *fmt);
+
+extern const struct vb2_ops vivid_vbi_out_qops;
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.c b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
new file mode 100644
index 000000000..e20449084
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
@@ -0,0 +1,1770 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-vid-cap.c - video capture support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/vmalloc.h>
+#include <linux/videodev2.h>
+#include <linux/prandom.h>
+#include <linux/v4l2-dv-timings.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-dv-timings.h>
+#include <media/v4l2-rect.h>
+
+#include "vivid-core.h"
+#include "vivid-vid-common.h"
+#include "vivid-kthread-cap.h"
+#include "vivid-vid-cap.h"
+
+/* Sizes must be in increasing order */
+static const struct v4l2_frmsize_discrete webcam_sizes[] = {
+	{  320, 180 },
+	{  320, 240 },
+	{  640, 360 },
+	{  640, 480 },
+	{ 1280, 720 },
+	{ 1280, 960 },
+	{ 1600, 1200 },
+	{ 1920, 1080 },
+	{ 3840, 2160 },
+};
+
+/*
+ * Intervals must be in increasing order.
+ */
+static const struct v4l2_fract webcam_intervals[] = {
+	{  1, 1 },
+	{  1, 2 },
+	{  1, 4 },
+	{  1, 5 },
+	{  1, 10 },
+	{  2, 25 },
+	{  1, 15 }, /* 7 - maximum for 2160p */
+	{  1, 25 },
+	{  1, 30 }, /* 9 - maximum for 1080p */
+	{  1, 40 },
+	{  1, 50 },
+	{  1, 60 }, /* 12 - maximum for 720p */
+	{  1, 120 },
+};
+
+/* Limit maximum FPS rates for high resolutions */
+#define IVAL_COUNT_720P 12 /* 720p and up is limited to 60 fps */
+#define IVAL_COUNT_1080P 9 /* 1080p and up is limited to 30 fps */
+#define IVAL_COUNT_2160P 7 /* 2160p and up is limited to 15 fps */
+
+static inline unsigned int webcam_ival_count(const struct vivid_dev *dev,
+					     unsigned int frmsize_idx)
+{
+	if (webcam_sizes[frmsize_idx].height >= 2160)
+		return IVAL_COUNT_2160P;
+
+	if (webcam_sizes[frmsize_idx].height >= 1080)
+		return IVAL_COUNT_1080P;
+
+	if (webcam_sizes[frmsize_idx].height >= 720)
+		return IVAL_COUNT_720P;
+
+	/* For low resolutions, allow all FPS rates */
+	return ARRAY_SIZE(webcam_intervals);
+}
+
+static int vid_cap_queue_setup(struct vb2_queue *vq,
+		       unsigned *nbuffers, unsigned *nplanes,
+		       unsigned sizes[], struct device *alloc_devs[])
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	unsigned buffers = tpg_g_buffers(&dev->tpg);
+	unsigned h = dev->fmt_cap_rect.height;
+	unsigned p;
+
+	if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
+		/*
+		 * You cannot use read() with FIELD_ALTERNATE since the field
+		 * information (TOP/BOTTOM) cannot be passed back to the user.
+		 */
+		if (vb2_fileio_is_active(vq))
+			return -EINVAL;
+	}
+
+	if (dev->queue_setup_error) {
+		/*
+		 * Error injection: test what happens if queue_setup() returns
+		 * an error.
+		 */
+		dev->queue_setup_error = false;
+		return -EINVAL;
+	}
+	if (*nplanes) {
+		/*
+		 * Check if the number of requested planes match
+		 * the number of buffers in the current format. You can't mix that.
+		 */
+		if (*nplanes != buffers)
+			return -EINVAL;
+		for (p = 0; p < buffers; p++) {
+			if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h /
+					dev->fmt_cap->vdownsampling[p] +
+					dev->fmt_cap->data_offset[p])
+				return -EINVAL;
+		}
+	} else {
+		for (p = 0; p < buffers; p++)
+			sizes[p] = (tpg_g_line_width(&dev->tpg, p) * h) /
+					dev->fmt_cap->vdownsampling[p] +
+					dev->fmt_cap->data_offset[p];
+	}
+
+	*nplanes = buffers;
+
+	dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
+	for (p = 0; p < buffers; p++)
+		dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
+
+	return 0;
+}
+
+static int vid_cap_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	unsigned long size;
+	unsigned buffers = tpg_g_buffers(&dev->tpg);
+	unsigned p;
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (WARN_ON(NULL == dev->fmt_cap))
+		return -EINVAL;
+
+	if (dev->buf_prepare_error) {
+		/*
+		 * Error injection: test what happens if buf_prepare() returns
+		 * an error.
+		 */
+		dev->buf_prepare_error = false;
+		return -EINVAL;
+	}
+	for (p = 0; p < buffers; p++) {
+		size = (tpg_g_line_width(&dev->tpg, p) *
+			dev->fmt_cap_rect.height) /
+			dev->fmt_cap->vdownsampling[p] +
+			dev->fmt_cap->data_offset[p];
+
+		if (vb2_plane_size(vb, p) < size) {
+			dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n",
+					__func__, p, vb2_plane_size(vb, p), size);
+			return -EINVAL;
+		}
+
+		vb2_set_plane_payload(vb, p, size);
+		vb->planes[p].data_offset = dev->fmt_cap->data_offset[p];
+	}
+
+	return 0;
+}
+
+static void vid_cap_buf_finish(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct v4l2_timecode *tc = &vbuf->timecode;
+	unsigned fps = 25;
+	unsigned seq = vbuf->sequence;
+
+	if (!vivid_is_sdtv_cap(dev))
+		return;
+
+	/*
+	 * Set the timecode. Rarely used, so it is interesting to
+	 * test this.
+	 */
+	vbuf->flags |= V4L2_BUF_FLAG_TIMECODE;
+	if (dev->std_cap[dev->input] & V4L2_STD_525_60)
+		fps = 30;
+	tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS;
+	tc->flags = 0;
+	tc->frames = seq % fps;
+	tc->seconds = (seq / fps) % 60;
+	tc->minutes = (seq / (60 * fps)) % 60;
+	tc->hours = (seq / (60 * 60 * fps)) % 24;
+}
+
+static void vid_cap_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	spin_lock(&dev->slock);
+	list_add_tail(&buf->list, &dev->vid_cap_active);
+	spin_unlock(&dev->slock);
+}
+
+static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	unsigned i;
+	int err;
+
+	dev->vid_cap_seq_count = 0;
+	dprintk(dev, 1, "%s\n", __func__);
+	for (i = 0; i < MAX_VID_CAP_BUFFERS; i++)
+		dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100;
+	if (dev->start_streaming_error) {
+		dev->start_streaming_error = false;
+		err = -EINVAL;
+	} else {
+		err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming);
+	}
+	if (err) {
+		struct vivid_buffer *buf, *tmp;
+
+		list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) {
+			list_del(&buf->list);
+			vb2_buffer_done(&buf->vb.vb2_buf,
+					VB2_BUF_STATE_QUEUED);
+		}
+	}
+	return err;
+}
+
+/* abort streaming and wait for last buffer */
+static void vid_cap_stop_streaming(struct vb2_queue *vq)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+
+	dprintk(dev, 1, "%s\n", __func__);
+	vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming);
+}
+
+static void vid_cap_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vid_cap);
+}
+
+const struct vb2_ops vivid_vid_cap_qops = {
+	.queue_setup		= vid_cap_queue_setup,
+	.buf_prepare		= vid_cap_buf_prepare,
+	.buf_finish		= vid_cap_buf_finish,
+	.buf_queue		= vid_cap_buf_queue,
+	.start_streaming	= vid_cap_start_streaming,
+	.stop_streaming		= vid_cap_stop_streaming,
+	.buf_request_complete	= vid_cap_buf_request_complete,
+};
+
+/*
+ * Determine the 'picture' quality based on the current TV frequency: either
+ * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off
+ * signal or NOISE for no signal.
+ */
+void vivid_update_quality(struct vivid_dev *dev)
+{
+	unsigned freq_modulus;
+
+	if (dev->input_is_connected_to_output[dev->input]) {
+		/*
+		 * The 'noise' will only be replaced by the actual video
+		 * if the output video matches the input video settings.
+		 */
+		tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
+		return;
+	}
+	if (vivid_is_hdmi_cap(dev) &&
+	    VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode[dev->input])) {
+		tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
+		return;
+	}
+	if (vivid_is_sdtv_cap(dev) &&
+	    VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input])) {
+		tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
+		return;
+	}
+	if (!vivid_is_tv_cap(dev)) {
+		tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
+		return;
+	}
+
+	/*
+	 * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
+	 * From +/- 0.25 MHz around the channel there is color, and from
+	 * +/- 1 MHz there is grayscale (chroma is lost).
+	 * Everywhere else it is just noise.
+	 */
+	freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
+	if (freq_modulus > 2 * 16) {
+		struct rnd_state prng;
+		prandom_seed_state(&prng, dev->tv_freq ^ 0x55);
+		tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE,
+			prandom_u32_state(&prng) & 0x3f);
+		return;
+	}
+	if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/)
+		tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
+	else
+		tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
+}
+
+/*
+ * Get the current picture quality and the associated afc value.
+ */
+static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc)
+{
+	unsigned freq_modulus;
+
+	if (afc)
+		*afc = 0;
+	if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR ||
+	    tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE)
+		return tpg_g_quality(&dev->tpg);
+
+	/*
+	 * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
+	 * From +/- 0.25 MHz around the channel there is color, and from
+	 * +/- 1 MHz there is grayscale (chroma is lost).
+	 * Everywhere else it is just gray.
+	 */
+	freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
+	if (afc)
+		*afc = freq_modulus - 1 * 16;
+	return TPG_QUAL_GRAY;
+}
+
+enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev)
+{
+	if (vivid_is_sdtv_cap(dev))
+		return dev->std_aspect_ratio[dev->input];
+
+	if (vivid_is_hdmi_cap(dev))
+		return dev->dv_timings_aspect_ratio[dev->input];
+
+	return TPG_VIDEO_ASPECT_IMAGE;
+}
+
+static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
+{
+	if (vivid_is_sdtv_cap(dev))
+		return (dev->std_cap[dev->input] & V4L2_STD_525_60) ?
+			TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
+
+	if (vivid_is_hdmi_cap(dev) &&
+	    dev->src_rect.width == 720 && dev->src_rect.height <= 576)
+		return dev->src_rect.height == 480 ?
+			TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
+
+	return TPG_PIXEL_ASPECT_SQUARE;
+}
+
+void vivid_update_reduced_fps(struct vivid_dev *dev)
+{
+	struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
+	unsigned int size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
+	u64 pixelclock;
+
+	if (dev->reduced_fps && can_reduce_fps(bt)) {
+		pixelclock = div_u64(bt->pixelclock * 1000, 1001);
+		bt->flags |= V4L2_DV_FL_REDUCED_FPS;
+	} else {
+		pixelclock = bt->pixelclock;
+		bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
+	}
+	dev->timeperframe_vid_cap = (struct v4l2_fract) {
+		size / 100, (u32)pixelclock / 100
+	};
+}
+
+/*
+ * Called whenever the format has to be reset which can occur when
+ * changing inputs, standard, timings, etc.
+ */
+void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
+{
+	struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
+	u32 dims[V4L2_CTRL_MAX_DIMS] = {};
+
+	/*
+	 * This resets the format, so must never be called while vb2_is_busy().
+	 */
+	if (WARN_ON(vb2_is_busy(&dev->vb_vid_cap_q)))
+		return;
+
+	switch (dev->input_type[dev->input]) {
+	case WEBCAM:
+	default:
+		dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
+		dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
+		dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
+		dev->field_cap = V4L2_FIELD_NONE;
+		tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
+		break;
+	case TV:
+	case SVID:
+		dev->field_cap = dev->tv_field_cap;
+		dev->src_rect.width = 720;
+		if (dev->std_cap[dev->input] & V4L2_STD_525_60) {
+			dev->src_rect.height = 480;
+			dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
+			dev->service_set_cap = V4L2_SLICED_CAPTION_525;
+		} else {
+			dev->src_rect.height = 576;
+			dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
+			dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
+		}
+		tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
+		break;
+	case HDMI:
+		dev->src_rect.width = bt->width;
+		dev->src_rect.height = bt->height;
+		vivid_update_reduced_fps(dev);
+		if (bt->interlaced)
+			dev->field_cap = V4L2_FIELD_ALTERNATE;
+		else
+			dev->field_cap = V4L2_FIELD_NONE;
+
+		/*
+		 * We can be called from within s_ctrl, in that case we can't
+		 * set/get controls. Luckily we don't need to in that case.
+		 */
+		if (keep_controls || !dev->colorspace)
+			break;
+		if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
+			if (bt->width == 720 && bt->height <= 576)
+				v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
+			else
+				v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
+			v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
+		} else {
+			v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
+			v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
+		}
+		tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
+		break;
+	}
+	vivid_update_quality(dev);
+	tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
+	dev->crop_cap = dev->src_rect;
+	dev->crop_bounds_cap = dev->src_rect;
+	dev->compose_cap = dev->crop_cap;
+	if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
+		dev->compose_cap.height /= 2;
+	dev->fmt_cap_rect = dev->compose_cap;
+	tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
+	tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
+	tpg_update_mv_step(&dev->tpg);
+
+	/*
+	 * We can be called from within s_ctrl, in that case we can't
+	 * modify controls. Luckily we don't need to in that case.
+	 */
+	if (keep_controls)
+		return;
+
+	dims[0] = DIV_ROUND_UP(dev->src_rect.height, PIXEL_ARRAY_DIV);
+	dims[1] = DIV_ROUND_UP(dev->src_rect.width, PIXEL_ARRAY_DIV);
+	v4l2_ctrl_modify_dimensions(dev->pixel_array, dims);
+}
+
+/* Map the field to something that is valid for the current input */
+static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
+{
+	if (vivid_is_sdtv_cap(dev)) {
+		switch (field) {
+		case V4L2_FIELD_INTERLACED_TB:
+		case V4L2_FIELD_INTERLACED_BT:
+		case V4L2_FIELD_SEQ_TB:
+		case V4L2_FIELD_SEQ_BT:
+		case V4L2_FIELD_TOP:
+		case V4L2_FIELD_BOTTOM:
+		case V4L2_FIELD_ALTERNATE:
+			return field;
+		case V4L2_FIELD_INTERLACED:
+		default:
+			return V4L2_FIELD_INTERLACED;
+		}
+	}
+	if (vivid_is_hdmi_cap(dev))
+		return dev->dv_timings_cap[dev->input].bt.interlaced ?
+			V4L2_FIELD_ALTERNATE : V4L2_FIELD_NONE;
+	return V4L2_FIELD_NONE;
+}
+
+static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
+{
+	if (!vivid_input_is_connected_to(dev))
+		return tpg_g_colorspace(&dev->tpg);
+	return dev->colorspace_out;
+}
+
+static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
+{
+	if (!vivid_input_is_connected_to(dev))
+		return tpg_g_xfer_func(&dev->tpg);
+	return dev->xfer_func_out;
+}
+
+static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
+{
+	if (!vivid_input_is_connected_to(dev))
+		return tpg_g_ycbcr_enc(&dev->tpg);
+	return dev->ycbcr_enc_out;
+}
+
+static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev)
+{
+	if (!vivid_input_is_connected_to(dev))
+		return tpg_g_hsv_enc(&dev->tpg);
+	return dev->hsv_enc_out;
+}
+
+static unsigned vivid_quantization_cap(struct vivid_dev *dev)
+{
+	if (!vivid_input_is_connected_to(dev))
+		return tpg_g_quantization(&dev->tpg);
+	return dev->quantization_out;
+}
+
+int vivid_g_fmt_vid_cap(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
+	unsigned p;
+
+	mp->width        = dev->fmt_cap_rect.width;
+	mp->height       = dev->fmt_cap_rect.height;
+	mp->field        = dev->field_cap;
+	mp->pixelformat  = dev->fmt_cap->fourcc;
+	mp->colorspace   = vivid_colorspace_cap(dev);
+	mp->xfer_func    = vivid_xfer_func_cap(dev);
+	if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV)
+		mp->hsv_enc    = vivid_hsv_enc_cap(dev);
+	else
+		mp->ycbcr_enc    = vivid_ycbcr_enc_cap(dev);
+	mp->quantization = vivid_quantization_cap(dev);
+	mp->num_planes = dev->fmt_cap->buffers;
+	for (p = 0; p < mp->num_planes; p++) {
+		mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
+		mp->plane_fmt[p].sizeimage =
+			(tpg_g_line_width(&dev->tpg, p) * mp->height) /
+			dev->fmt_cap->vdownsampling[p] +
+			dev->fmt_cap->data_offset[p];
+	}
+	return 0;
+}
+
+int vivid_try_fmt_vid_cap(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
+	struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
+	struct vivid_dev *dev = video_drvdata(file);
+	const struct vivid_fmt *fmt;
+	unsigned bytesperline, max_bpl;
+	unsigned factor = 1;
+	unsigned w, h;
+	unsigned p;
+	bool user_set_csc = !!(mp->flags & V4L2_PIX_FMT_FLAG_SET_CSC);
+
+	fmt = vivid_get_format(dev, mp->pixelformat);
+	if (!fmt) {
+		dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
+			mp->pixelformat);
+		mp->pixelformat = V4L2_PIX_FMT_YUYV;
+		fmt = vivid_get_format(dev, mp->pixelformat);
+	}
+
+	mp->field = vivid_field_cap(dev, mp->field);
+	if (vivid_is_webcam(dev)) {
+		const struct v4l2_frmsize_discrete *sz =
+			v4l2_find_nearest_size(webcam_sizes,
+					       ARRAY_SIZE(webcam_sizes), width,
+					       height, mp->width, mp->height);
+
+		w = sz->width;
+		h = sz->height;
+	} else if (vivid_is_sdtv_cap(dev)) {
+		w = 720;
+		h = (dev->std_cap[dev->input] & V4L2_STD_525_60) ? 480 : 576;
+	} else {
+		w = dev->src_rect.width;
+		h = dev->src_rect.height;
+	}
+	if (V4L2_FIELD_HAS_T_OR_B(mp->field))
+		factor = 2;
+	if (vivid_is_webcam(dev) ||
+	    (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
+		mp->width = w;
+		mp->height = h / factor;
+	} else {
+		struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
+
+		v4l2_rect_set_min_size(&r, &vivid_min_rect);
+		v4l2_rect_set_max_size(&r, &vivid_max_rect);
+		if (dev->has_scaler_cap && !dev->has_compose_cap) {
+			struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
+
+			v4l2_rect_set_max_size(&r, &max_r);
+		} else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
+			v4l2_rect_set_max_size(&r, &dev->src_rect);
+		} else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
+			v4l2_rect_set_min_size(&r, &dev->src_rect);
+		}
+		mp->width = r.width;
+		mp->height = r.height / factor;
+	}
+
+	/* This driver supports custom bytesperline values */
+
+	mp->num_planes = fmt->buffers;
+	for (p = 0; p < fmt->buffers; p++) {
+		/* Calculate the minimum supported bytesperline value */
+		bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
+		/* Calculate the maximum supported bytesperline value */
+		max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
+
+		if (pfmt[p].bytesperline > max_bpl)
+			pfmt[p].bytesperline = max_bpl;
+		if (pfmt[p].bytesperline < bytesperline)
+			pfmt[p].bytesperline = bytesperline;
+
+		pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
+				fmt->vdownsampling[p] + fmt->data_offset[p];
+
+		memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
+	}
+	for (p = fmt->buffers; p < fmt->planes; p++)
+		pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
+			(fmt->bit_depth[p] / fmt->vdownsampling[p])) /
+			(fmt->bit_depth[0] / fmt->vdownsampling[0]);
+
+	if (!user_set_csc || !v4l2_is_colorspace_valid(mp->colorspace))
+		mp->colorspace = vivid_colorspace_cap(dev);
+
+	if (!user_set_csc || !v4l2_is_xfer_func_valid(mp->xfer_func))
+		mp->xfer_func = vivid_xfer_func_cap(dev);
+
+	if (fmt->color_enc == TGP_COLOR_ENC_HSV) {
+		if (!user_set_csc || !v4l2_is_hsv_enc_valid(mp->hsv_enc))
+			mp->hsv_enc = vivid_hsv_enc_cap(dev);
+	} else if (fmt->color_enc == TGP_COLOR_ENC_YCBCR) {
+		if (!user_set_csc || !v4l2_is_ycbcr_enc_valid(mp->ycbcr_enc))
+			mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
+	} else {
+		mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
+	}
+
+	if (fmt->color_enc == TGP_COLOR_ENC_YCBCR ||
+	    fmt->color_enc == TGP_COLOR_ENC_RGB) {
+		if (!user_set_csc || !v4l2_is_quant_valid(mp->quantization))
+			mp->quantization = vivid_quantization_cap(dev);
+	} else {
+		mp->quantization = vivid_quantization_cap(dev);
+	}
+
+	memset(mp->reserved, 0, sizeof(mp->reserved));
+	return 0;
+}
+
+int vivid_s_fmt_vid_cap(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_rect *crop = &dev->crop_cap;
+	struct v4l2_rect *compose = &dev->compose_cap;
+	struct vb2_queue *q = &dev->vb_vid_cap_q;
+	int ret = vivid_try_fmt_vid_cap(file, priv, f);
+	unsigned factor = 1;
+	unsigned p;
+	unsigned i;
+
+	if (ret < 0)
+		return ret;
+
+	if (vb2_is_busy(q)) {
+		dprintk(dev, 1, "%s device busy\n", __func__);
+		return -EBUSY;
+	}
+
+	dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
+	if (V4L2_FIELD_HAS_T_OR_B(mp->field))
+		factor = 2;
+
+	/* Note: the webcam input doesn't support scaling, cropping or composing */
+
+	if (!vivid_is_webcam(dev) &&
+	    (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
+		struct v4l2_rect r = { 0, 0, mp->width, mp->height };
+
+		if (dev->has_scaler_cap) {
+			if (dev->has_compose_cap)
+				v4l2_rect_map_inside(compose, &r);
+			else
+				*compose = r;
+			if (dev->has_crop_cap && !dev->has_compose_cap) {
+				struct v4l2_rect min_r = {
+					0, 0,
+					r.width / MAX_ZOOM,
+					factor * r.height / MAX_ZOOM
+				};
+				struct v4l2_rect max_r = {
+					0, 0,
+					r.width * MAX_ZOOM,
+					factor * r.height * MAX_ZOOM
+				};
+
+				v4l2_rect_set_min_size(crop, &min_r);
+				v4l2_rect_set_max_size(crop, &max_r);
+				v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
+			} else if (dev->has_crop_cap) {
+				struct v4l2_rect min_r = {
+					0, 0,
+					compose->width / MAX_ZOOM,
+					factor * compose->height / MAX_ZOOM
+				};
+				struct v4l2_rect max_r = {
+					0, 0,
+					compose->width * MAX_ZOOM,
+					factor * compose->height * MAX_ZOOM
+				};
+
+				v4l2_rect_set_min_size(crop, &min_r);
+				v4l2_rect_set_max_size(crop, &max_r);
+				v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
+			}
+		} else if (dev->has_crop_cap && !dev->has_compose_cap) {
+			r.height *= factor;
+			v4l2_rect_set_size_to(crop, &r);
+			v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
+			r = *crop;
+			r.height /= factor;
+			v4l2_rect_set_size_to(compose, &r);
+		} else if (!dev->has_crop_cap) {
+			v4l2_rect_map_inside(compose, &r);
+		} else {
+			r.height *= factor;
+			v4l2_rect_set_max_size(crop, &r);
+			v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
+			compose->top *= factor;
+			compose->height *= factor;
+			v4l2_rect_set_size_to(compose, crop);
+			v4l2_rect_map_inside(compose, &r);
+			compose->top /= factor;
+			compose->height /= factor;
+		}
+	} else if (vivid_is_webcam(dev)) {
+		unsigned int ival_sz = webcam_ival_count(dev, dev->webcam_size_idx);
+
+		/* Guaranteed to be a match */
+		for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
+			if (webcam_sizes[i].width == mp->width &&
+					webcam_sizes[i].height == mp->height)
+				break;
+		dev->webcam_size_idx = i;
+		if (dev->webcam_ival_idx >= ival_sz)
+			dev->webcam_ival_idx = ival_sz - 1;
+		vivid_update_format_cap(dev, false);
+	} else {
+		struct v4l2_rect r = { 0, 0, mp->width, mp->height };
+
+		v4l2_rect_set_size_to(compose, &r);
+		r.height *= factor;
+		v4l2_rect_set_size_to(crop, &r);
+	}
+
+	dev->fmt_cap_rect.width = mp->width;
+	dev->fmt_cap_rect.height = mp->height;
+	tpg_s_buf_height(&dev->tpg, mp->height);
+	tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
+	for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
+		tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
+	dev->field_cap = mp->field;
+	if (dev->field_cap == V4L2_FIELD_ALTERNATE)
+		tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
+	else
+		tpg_s_field(&dev->tpg, dev->field_cap, false);
+	tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
+	if (vivid_is_sdtv_cap(dev))
+		dev->tv_field_cap = mp->field;
+	tpg_update_mv_step(&dev->tpg);
+	dev->tpg.colorspace = mp->colorspace;
+	dev->tpg.xfer_func = mp->xfer_func;
+	if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_YCBCR)
+		dev->tpg.ycbcr_enc = mp->ycbcr_enc;
+	else
+		dev->tpg.hsv_enc = mp->hsv_enc;
+	dev->tpg.quantization = mp->quantization;
+
+	return 0;
+}
+
+int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+	return vivid_g_fmt_vid_cap(file, priv, f);
+}
+
+int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+	return vivid_try_fmt_vid_cap(file, priv, f);
+}
+
+int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+	return vivid_s_fmt_vid_cap(file, priv, f);
+}
+
+int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+	return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
+}
+
+int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+	return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
+}
+
+int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+	return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
+}
+
+int vivid_vid_cap_g_selection(struct file *file, void *priv,
+			      struct v4l2_selection *sel)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->has_crop_cap && !dev->has_compose_cap)
+		return -ENOTTY;
+	if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+	if (vivid_is_webcam(dev))
+		return -ENODATA;
+
+	sel->r.left = sel->r.top = 0;
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP:
+		if (!dev->has_crop_cap)
+			return -EINVAL;
+		sel->r = dev->crop_cap;
+		break;
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		if (!dev->has_crop_cap)
+			return -EINVAL;
+		sel->r = dev->src_rect;
+		break;
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+		if (!dev->has_compose_cap)
+			return -EINVAL;
+		sel->r = vivid_max_rect;
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+		if (!dev->has_compose_cap)
+			return -EINVAL;
+		sel->r = dev->compose_cap;
+		break;
+	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+		if (!dev->has_compose_cap)
+			return -EINVAL;
+		sel->r = dev->fmt_cap_rect;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+int vivid_vid_cap_s_selection(struct file *file, void *priv, struct v4l2_selection *s)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_rect *crop = &dev->crop_cap;
+	struct v4l2_rect *compose = &dev->compose_cap;
+	unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
+	int ret;
+
+	if (!dev->has_crop_cap && !dev->has_compose_cap)
+		return -ENOTTY;
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+	if (vivid_is_webcam(dev))
+		return -ENODATA;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_CROP:
+		if (!dev->has_crop_cap)
+			return -EINVAL;
+		ret = vivid_vid_adjust_sel(s->flags, &s->r);
+		if (ret)
+			return ret;
+		v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
+		v4l2_rect_set_max_size(&s->r, &dev->src_rect);
+		v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap);
+		s->r.top /= factor;
+		s->r.height /= factor;
+		if (dev->has_scaler_cap) {
+			struct v4l2_rect fmt = dev->fmt_cap_rect;
+			struct v4l2_rect max_rect = {
+				0, 0,
+				s->r.width * MAX_ZOOM,
+				s->r.height * MAX_ZOOM
+			};
+			struct v4l2_rect min_rect = {
+				0, 0,
+				s->r.width / MAX_ZOOM,
+				s->r.height / MAX_ZOOM
+			};
+
+			v4l2_rect_set_min_size(&fmt, &min_rect);
+			if (!dev->has_compose_cap)
+				v4l2_rect_set_max_size(&fmt, &max_rect);
+			if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
+			    vb2_is_busy(&dev->vb_vid_cap_q))
+				return -EBUSY;
+			if (dev->has_compose_cap) {
+				v4l2_rect_set_min_size(compose, &min_rect);
+				v4l2_rect_set_max_size(compose, &max_rect);
+			}
+			v4l2_rect_map_inside(compose, &fmt);
+			dev->fmt_cap_rect = fmt;
+			tpg_s_buf_height(&dev->tpg, fmt.height);
+		} else if (dev->has_compose_cap) {
+			struct v4l2_rect fmt = dev->fmt_cap_rect;
+
+			v4l2_rect_set_min_size(&fmt, &s->r);
+			if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
+			    vb2_is_busy(&dev->vb_vid_cap_q))
+				return -EBUSY;
+			dev->fmt_cap_rect = fmt;
+			tpg_s_buf_height(&dev->tpg, fmt.height);
+			v4l2_rect_set_size_to(compose, &s->r);
+			v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
+		} else {
+			if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) &&
+			    vb2_is_busy(&dev->vb_vid_cap_q))
+				return -EBUSY;
+			v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r);
+			v4l2_rect_set_size_to(compose, &s->r);
+			v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
+			tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
+		}
+		s->r.top *= factor;
+		s->r.height *= factor;
+		*crop = s->r;
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+		if (!dev->has_compose_cap)
+			return -EINVAL;
+		ret = vivid_vid_adjust_sel(s->flags, &s->r);
+		if (ret)
+			return ret;
+		v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
+		v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect);
+		if (dev->has_scaler_cap) {
+			struct v4l2_rect max_rect = {
+				0, 0,
+				dev->src_rect.width * MAX_ZOOM,
+				(dev->src_rect.height / factor) * MAX_ZOOM
+			};
+
+			v4l2_rect_set_max_size(&s->r, &max_rect);
+			if (dev->has_crop_cap) {
+				struct v4l2_rect min_rect = {
+					0, 0,
+					s->r.width / MAX_ZOOM,
+					(s->r.height * factor) / MAX_ZOOM
+				};
+				struct v4l2_rect max_rect = {
+					0, 0,
+					s->r.width * MAX_ZOOM,
+					(s->r.height * factor) * MAX_ZOOM
+				};
+
+				v4l2_rect_set_min_size(crop, &min_rect);
+				v4l2_rect_set_max_size(crop, &max_rect);
+				v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
+			}
+		} else if (dev->has_crop_cap) {
+			s->r.top *= factor;
+			s->r.height *= factor;
+			v4l2_rect_set_max_size(&s->r, &dev->src_rect);
+			v4l2_rect_set_size_to(crop, &s->r);
+			v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
+			s->r.top /= factor;
+			s->r.height /= factor;
+		} else {
+			v4l2_rect_set_size_to(&s->r, &dev->src_rect);
+			s->r.height /= factor;
+		}
+		v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
+		*compose = s->r;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	tpg_s_crop_compose(&dev->tpg, crop, compose);
+	return 0;
+}
+
+int vivid_vid_cap_g_pixelaspect(struct file *file, void *priv,
+				int type, struct v4l2_fract *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	switch (vivid_get_pixel_aspect(dev)) {
+	case TPG_PIXEL_ASPECT_NTSC:
+		f->numerator = 11;
+		f->denominator = 10;
+		break;
+	case TPG_PIXEL_ASPECT_PAL:
+		f->numerator = 54;
+		f->denominator = 59;
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_audio vivid_audio_inputs[] = {
+	{ 0, "TV", V4L2_AUDCAP_STEREO },
+	{ 1, "Line-In", V4L2_AUDCAP_STEREO },
+};
+
+int vidioc_enum_input(struct file *file, void *priv,
+				struct v4l2_input *inp)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (inp->index >= dev->num_inputs)
+		return -EINVAL;
+
+	inp->type = V4L2_INPUT_TYPE_CAMERA;
+	switch (dev->input_type[inp->index]) {
+	case WEBCAM:
+		snprintf(inp->name, sizeof(inp->name), "Webcam %03u-%u",
+			 dev->inst, dev->input_name_counter[inp->index]);
+		inp->capabilities = 0;
+		break;
+	case TV:
+		snprintf(inp->name, sizeof(inp->name), "TV %03u-%u",
+			 dev->inst, dev->input_name_counter[inp->index]);
+		inp->type = V4L2_INPUT_TYPE_TUNER;
+		inp->std = V4L2_STD_ALL;
+		if (dev->has_audio_inputs)
+			inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
+		inp->capabilities = V4L2_IN_CAP_STD;
+		break;
+	case SVID:
+		snprintf(inp->name, sizeof(inp->name), "S-Video %03u-%u",
+			 dev->inst, dev->input_name_counter[inp->index]);
+		inp->std = V4L2_STD_ALL;
+		if (dev->has_audio_inputs)
+			inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
+		inp->capabilities = V4L2_IN_CAP_STD;
+		break;
+	case HDMI:
+		snprintf(inp->name, sizeof(inp->name), "HDMI %03u-%u",
+			 dev->inst, dev->input_name_counter[inp->index]);
+		inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
+		if (dev->edid_blocks == 0 ||
+		    dev->dv_timings_signal_mode[dev->input] == NO_SIGNAL)
+			inp->status |= V4L2_IN_ST_NO_SIGNAL;
+		else if (dev->dv_timings_signal_mode[dev->input] == NO_LOCK ||
+			 dev->dv_timings_signal_mode[dev->input] == OUT_OF_RANGE)
+			inp->status |= V4L2_IN_ST_NO_H_LOCK;
+		break;
+	}
+	if (dev->sensor_hflip)
+		inp->status |= V4L2_IN_ST_HFLIP;
+	if (dev->sensor_vflip)
+		inp->status |= V4L2_IN_ST_VFLIP;
+	if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
+		if (dev->std_signal_mode[dev->input] == NO_SIGNAL) {
+			inp->status |= V4L2_IN_ST_NO_SIGNAL;
+		} else if (dev->std_signal_mode[dev->input] == NO_LOCK) {
+			inp->status |= V4L2_IN_ST_NO_H_LOCK;
+		} else if (vivid_is_tv_cap(dev)) {
+			switch (tpg_g_quality(&dev->tpg)) {
+			case TPG_QUAL_GRAY:
+				inp->status |= V4L2_IN_ST_COLOR_KILL;
+				break;
+			case TPG_QUAL_NOISE:
+				inp->status |= V4L2_IN_ST_NO_H_LOCK;
+				break;
+			default:
+				break;
+			}
+		}
+	}
+	return 0;
+}
+
+int vidioc_g_input(struct file *file, void *priv, unsigned *i)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	*i = dev->input;
+	return 0;
+}
+
+int vidioc_s_input(struct file *file, void *priv, unsigned i)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
+	unsigned brightness;
+
+	if (i >= dev->num_inputs)
+		return -EINVAL;
+
+	if (i == dev->input)
+		return 0;
+
+	if (vb2_is_busy(&dev->vb_vid_cap_q) ||
+	    vb2_is_busy(&dev->vb_vbi_cap_q) ||
+	    vb2_is_busy(&dev->vb_meta_cap_q))
+		return -EBUSY;
+
+	dev->input = i;
+	dev->vid_cap_dev.tvnorms = 0;
+	if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
+		dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
+		dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
+	}
+	dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
+	dev->meta_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
+	vivid_update_format_cap(dev, false);
+
+	if (dev->colorspace) {
+		switch (dev->input_type[i]) {
+		case WEBCAM:
+			v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
+			break;
+		case TV:
+		case SVID:
+			v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
+			break;
+		case HDMI:
+			if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
+				if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
+					v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
+				else
+					v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
+			} else {
+				v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
+			}
+			break;
+		}
+	}
+
+	/*
+	 * Modify the brightness range depending on the input.
+	 * This makes it easy to use vivid to test if applications can
+	 * handle control range modifications and is also how this is
+	 * typically used in practice as different inputs may be hooked
+	 * up to different receivers with different control ranges.
+	 */
+	brightness = 128 * i + dev->input_brightness[i];
+	v4l2_ctrl_modify_range(dev->brightness,
+			128 * i, 255 + 128 * i, 1, 128 + 128 * i);
+	v4l2_ctrl_s_ctrl(dev->brightness, brightness);
+
+	/* Restore per-input states. */
+	v4l2_ctrl_activate(dev->ctrl_dv_timings_signal_mode,
+			   vivid_is_hdmi_cap(dev));
+	v4l2_ctrl_activate(dev->ctrl_dv_timings, vivid_is_hdmi_cap(dev) &&
+			   dev->dv_timings_signal_mode[dev->input] ==
+			   SELECTED_DV_TIMINGS);
+	v4l2_ctrl_activate(dev->ctrl_std_signal_mode, vivid_is_sdtv_cap(dev));
+	v4l2_ctrl_activate(dev->ctrl_standard, vivid_is_sdtv_cap(dev) &&
+			   dev->std_signal_mode[dev->input]);
+
+	if (vivid_is_hdmi_cap(dev)) {
+		v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings_signal_mode,
+				 dev->dv_timings_signal_mode[dev->input]);
+		v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings,
+				 dev->query_dv_timings[dev->input]);
+	} else if (vivid_is_sdtv_cap(dev)) {
+		v4l2_ctrl_s_ctrl(dev->ctrl_std_signal_mode,
+				 dev->std_signal_mode[dev->input]);
+		v4l2_ctrl_s_ctrl(dev->ctrl_standard,
+				 dev->std_signal_mode[dev->input]);
+	}
+
+	return 0;
+}
+
+int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *vin)
+{
+	if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
+		return -EINVAL;
+	*vin = vivid_audio_inputs[vin->index];
+	return 0;
+}
+
+int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *vin)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_sdtv_cap(dev))
+		return -EINVAL;
+	*vin = vivid_audio_inputs[dev->tv_audio_input];
+	return 0;
+}
+
+int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *vin)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_sdtv_cap(dev))
+		return -EINVAL;
+	if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
+		return -EINVAL;
+	dev->tv_audio_input = vin->index;
+	return 0;
+}
+
+int vivid_video_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (vf->tuner != 0)
+		return -EINVAL;
+	vf->frequency = dev->tv_freq;
+	return 0;
+}
+
+int vivid_video_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *vf)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (vf->tuner != 0)
+		return -EINVAL;
+	dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
+	if (vivid_is_tv_cap(dev))
+		vivid_update_quality(dev);
+	return 0;
+}
+
+int vivid_video_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (vt->index != 0)
+		return -EINVAL;
+	if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
+		return -EINVAL;
+	dev->tv_audmode = vt->audmode;
+	return 0;
+}
+
+int vivid_video_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	enum tpg_quality qual;
+
+	if (vt->index != 0)
+		return -EINVAL;
+
+	vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
+			 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
+	vt->audmode = dev->tv_audmode;
+	vt->rangelow = MIN_TV_FREQ;
+	vt->rangehigh = MAX_TV_FREQ;
+	qual = vivid_get_quality(dev, &vt->afc);
+	if (qual == TPG_QUAL_COLOR)
+		vt->signal = 0xffff;
+	else if (qual == TPG_QUAL_GRAY)
+		vt->signal = 0x8000;
+	else
+		vt->signal = 0;
+	if (qual == TPG_QUAL_NOISE) {
+		vt->rxsubchans = 0;
+	} else if (qual == TPG_QUAL_GRAY) {
+		vt->rxsubchans = V4L2_TUNER_SUB_MONO;
+	} else {
+		unsigned int channel_nr = dev->tv_freq / (6 * 16);
+		unsigned int options =
+			(dev->std_cap[dev->input] & V4L2_STD_NTSC_M) ? 4 : 3;
+
+		switch (channel_nr % options) {
+		case 0:
+			vt->rxsubchans = V4L2_TUNER_SUB_MONO;
+			break;
+		case 1:
+			vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
+			break;
+		case 2:
+			if (dev->std_cap[dev->input] & V4L2_STD_NTSC_M)
+				vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
+			else
+				vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
+			break;
+		case 3:
+			vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
+			break;
+		}
+	}
+	strscpy(vt->name, "TV Tuner", sizeof(vt->name));
+	return 0;
+}
+
+/* Must remain in sync with the vivid_ctrl_standard_strings array */
+const v4l2_std_id vivid_standard[] = {
+	V4L2_STD_NTSC_M,
+	V4L2_STD_NTSC_M_JP,
+	V4L2_STD_NTSC_M_KR,
+	V4L2_STD_NTSC_443,
+	V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
+	V4L2_STD_PAL_I,
+	V4L2_STD_PAL_DK,
+	V4L2_STD_PAL_M,
+	V4L2_STD_PAL_N,
+	V4L2_STD_PAL_Nc,
+	V4L2_STD_PAL_60,
+	V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
+	V4L2_STD_SECAM_DK,
+	V4L2_STD_SECAM_L,
+	V4L2_STD_SECAM_LC,
+	V4L2_STD_UNKNOWN
+};
+
+/* Must remain in sync with the vivid_standard array */
+const char * const vivid_ctrl_standard_strings[] = {
+	"NTSC-M",
+	"NTSC-M-JP",
+	"NTSC-M-KR",
+	"NTSC-443",
+	"PAL-BGH",
+	"PAL-I",
+	"PAL-DK",
+	"PAL-M",
+	"PAL-N",
+	"PAL-Nc",
+	"PAL-60",
+	"SECAM-BGH",
+	"SECAM-DK",
+	"SECAM-L",
+	"SECAM-Lc",
+	NULL,
+};
+
+int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	unsigned int last = dev->query_std_last[dev->input];
+
+	if (!vivid_is_sdtv_cap(dev))
+		return -ENODATA;
+	if (dev->std_signal_mode[dev->input] == NO_SIGNAL ||
+	    dev->std_signal_mode[dev->input] == NO_LOCK) {
+		*id = V4L2_STD_UNKNOWN;
+		return 0;
+	}
+	if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
+		*id = V4L2_STD_UNKNOWN;
+	} else if (dev->std_signal_mode[dev->input] == CURRENT_STD) {
+		*id = dev->std_cap[dev->input];
+	} else if (dev->std_signal_mode[dev->input] == SELECTED_STD) {
+		*id = dev->query_std[dev->input];
+	} else {
+		*id = vivid_standard[last];
+		dev->query_std_last[dev->input] =
+			(last + 1) % ARRAY_SIZE(vivid_standard);
+	}
+
+	return 0;
+}
+
+int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_sdtv_cap(dev))
+		return -ENODATA;
+	if (dev->std_cap[dev->input] == id)
+		return 0;
+	if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
+		return -EBUSY;
+	dev->std_cap[dev->input] = id;
+	vivid_update_format_cap(dev, false);
+	return 0;
+}
+
+static void find_aspect_ratio(u32 width, u32 height,
+			       u32 *num, u32 *denom)
+{
+	if (!(height % 3) && ((height * 4 / 3) == width)) {
+		*num = 4;
+		*denom = 3;
+	} else if (!(height % 9) && ((height * 16 / 9) == width)) {
+		*num = 16;
+		*denom = 9;
+	} else if (!(height % 10) && ((height * 16 / 10) == width)) {
+		*num = 16;
+		*denom = 10;
+	} else if (!(height % 4) && ((height * 5 / 4) == width)) {
+		*num = 5;
+		*denom = 4;
+	} else if (!(height % 9) && ((height * 15 / 9) == width)) {
+		*num = 15;
+		*denom = 9;
+	} else { /* default to 16:9 */
+		*num = 16;
+		*denom = 9;
+	}
+}
+
+static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
+{
+	struct v4l2_bt_timings *bt = &timings->bt;
+	u32 total_h_pixel;
+	u32 total_v_lines;
+	u32 h_freq;
+
+	if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
+				NULL, NULL))
+		return false;
+
+	total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
+	total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
+
+	h_freq = (u32)bt->pixelclock / total_h_pixel;
+
+	if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
+		struct v4l2_dv_timings cvt = {};
+
+		if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
+				    bt->polarities, bt->interlaced,
+				    &vivid_dv_timings_cap, &cvt) &&
+		    cvt.bt.width == bt->width && cvt.bt.height == bt->height) {
+			*timings = cvt;
+			return true;
+		}
+	}
+
+	if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
+		struct v4l2_dv_timings gtf = {};
+		struct v4l2_fract aspect_ratio;
+
+		find_aspect_ratio(bt->width, bt->height,
+				  &aspect_ratio.numerator,
+				  &aspect_ratio.denominator);
+		if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
+				    bt->polarities, bt->interlaced,
+				    aspect_ratio, &vivid_dv_timings_cap,
+				    &gtf) &&
+		    gtf.bt.width == bt->width && gtf.bt.height == bt->height) {
+			*timings = gtf;
+			return true;
+		}
+	}
+	return false;
+}
+
+int vivid_vid_cap_s_dv_timings(struct file *file, void *priv,
+				    struct v4l2_dv_timings *timings)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_hdmi_cap(dev))
+		return -ENODATA;
+	if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
+				      0, NULL, NULL) &&
+	    !valid_cvt_gtf_timings(timings))
+		return -EINVAL;
+
+	if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap[dev->input],
+				  0, false))
+		return 0;
+	if (vb2_is_busy(&dev->vb_vid_cap_q))
+		return -EBUSY;
+
+	dev->dv_timings_cap[dev->input] = *timings;
+	vivid_update_format_cap(dev, false);
+	return 0;
+}
+
+int vidioc_query_dv_timings(struct file *file, void *priv,
+				    struct v4l2_dv_timings *timings)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	unsigned int input = dev->input;
+	unsigned int last = dev->query_dv_timings_last[input];
+
+	if (!vivid_is_hdmi_cap(dev))
+		return -ENODATA;
+	if (dev->dv_timings_signal_mode[input] == NO_SIGNAL ||
+	    dev->edid_blocks == 0)
+		return -ENOLINK;
+	if (dev->dv_timings_signal_mode[input] == NO_LOCK)
+		return -ENOLCK;
+	if (dev->dv_timings_signal_mode[input] == OUT_OF_RANGE) {
+		timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
+		return -ERANGE;
+	}
+	if (dev->dv_timings_signal_mode[input] == CURRENT_DV_TIMINGS) {
+		*timings = dev->dv_timings_cap[input];
+	} else if (dev->dv_timings_signal_mode[input] ==
+		   SELECTED_DV_TIMINGS) {
+		*timings =
+			v4l2_dv_timings_presets[dev->query_dv_timings[input]];
+	} else {
+		*timings =
+			v4l2_dv_timings_presets[last];
+		dev->query_dv_timings_last[input] =
+			(last + 1) % dev->query_dv_timings_size;
+	}
+	return 0;
+}
+
+void vivid_update_outputs(struct vivid_dev *dev)
+{
+	u32 edid_present = 0;
+
+	if (!dev || !dev->num_outputs)
+		return;
+	for (unsigned int i = 0, j = 0; i < dev->num_outputs; i++) {
+		if (dev->output_type[i] != HDMI)
+			continue;
+
+		struct vivid_dev *dev_rx = dev->output_to_input_instance[i];
+
+		if (dev_rx && dev_rx->edid_blocks)
+			edid_present |= 1 << j;
+		j++;
+	}
+	v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, edid_present);
+	v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, edid_present);
+	v4l2_ctrl_s_ctrl(dev->ctrl_tx_rxsense, edid_present);
+}
+
+void vivid_update_connected_outputs(struct vivid_dev *dev)
+{
+	u16 phys_addr = cec_get_edid_phys_addr(dev->edid, dev->edid_blocks * 128, NULL);
+
+	for (unsigned int i = 0, j = 0; i < dev->num_inputs; i++) {
+		unsigned int menu_idx =
+			dev->input_is_connected_to_output[i];
+
+		if (dev->input_type[i] != HDMI)
+			continue;
+		j++;
+		if (menu_idx < FIXED_MENU_ITEMS)
+			continue;
+
+		struct vivid_dev *dev_tx = vivid_ctrl_hdmi_to_output_instance[menu_idx];
+		unsigned int output = vivid_ctrl_hdmi_to_output_index[menu_idx];
+
+		if (!dev_tx)
+			continue;
+
+		unsigned int hdmi_output = dev_tx->output_to_iface_index[output];
+
+		vivid_update_outputs(dev_tx);
+		if (dev->edid_blocks) {
+			cec_s_phys_addr(dev_tx->cec_tx_adap[hdmi_output],
+					v4l2_phys_addr_for_input(phys_addr, j),
+					false);
+		} else {
+			cec_phys_addr_invalidate(dev_tx->cec_tx_adap[hdmi_output]);
+		}
+	}
+}
+
+int vidioc_s_edid(struct file *file, void *priv,
+			 struct v4l2_edid *edid)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	u16 phys_addr;
+	int ret;
+
+	memset(edid->reserved, 0, sizeof(edid->reserved));
+	if (edid->pad >= dev->num_inputs)
+		return -EINVAL;
+	if (dev->input_type[edid->pad] != HDMI || edid->start_block)
+		return -EINVAL;
+	if (edid->blocks == 0) {
+		if (vb2_is_busy(&dev->vb_vid_cap_q))
+			return -EBUSY;
+		dev->edid_blocks = 0;
+		vivid_update_connected_outputs(dev);
+		return 0;
+	}
+	if (edid->blocks > dev->edid_max_blocks) {
+		edid->blocks = dev->edid_max_blocks;
+		return -E2BIG;
+	}
+	phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL);
+	ret = v4l2_phys_addr_validate(phys_addr, &phys_addr, NULL);
+	if (ret)
+		return ret;
+
+	if (vb2_is_busy(&dev->vb_vid_cap_q))
+		return -EBUSY;
+
+	dev->edid_blocks = edid->blocks;
+	memcpy(dev->edid, edid->edid, edid->blocks * 128);
+
+	vivid_update_connected_outputs(dev);
+	return 0;
+}
+
+int vidioc_enum_framesizes(struct file *file, void *priv,
+					 struct v4l2_frmsizeenum *fsize)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
+		return -EINVAL;
+	if (vivid_get_format(dev, fsize->pixel_format) == NULL)
+		return -EINVAL;
+	if (vivid_is_webcam(dev)) {
+		if (fsize->index >= ARRAY_SIZE(webcam_sizes))
+			return -EINVAL;
+		fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
+		fsize->discrete = webcam_sizes[fsize->index];
+		return 0;
+	}
+	if (fsize->index)
+		return -EINVAL;
+	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+	fsize->stepwise.min_width = MIN_WIDTH;
+	fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
+	fsize->stepwise.step_width = 2;
+	fsize->stepwise.min_height = MIN_HEIGHT;
+	fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
+	fsize->stepwise.step_height = 2;
+	return 0;
+}
+
+/* timeperframe is arbitrary and continuous */
+int vidioc_enum_frameintervals(struct file *file, void *priv,
+					     struct v4l2_frmivalenum *fival)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	const struct vivid_fmt *fmt;
+	int i;
+
+	fmt = vivid_get_format(dev, fival->pixel_format);
+	if (!fmt)
+		return -EINVAL;
+
+	if (!vivid_is_webcam(dev)) {
+		if (fival->index)
+			return -EINVAL;
+		if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
+			return -EINVAL;
+		if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
+			return -EINVAL;
+		fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
+		fival->discrete = dev->timeperframe_vid_cap;
+		return 0;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
+		if (fival->width == webcam_sizes[i].width &&
+		    fival->height == webcam_sizes[i].height)
+			break;
+	if (i == ARRAY_SIZE(webcam_sizes))
+		return -EINVAL;
+	if (fival->index >= webcam_ival_count(dev, i))
+		return -EINVAL;
+	fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
+	fival->discrete = webcam_intervals[fival->index];
+	return 0;
+}
+
+int vivid_vid_cap_g_parm(struct file *file, void *priv,
+			  struct v4l2_streamparm *parm)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (parm->type != (dev->multiplanar ?
+			   V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
+			   V4L2_BUF_TYPE_VIDEO_CAPTURE))
+		return -EINVAL;
+
+	parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
+	parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
+	parm->parm.capture.readbuffers  = 1;
+	return 0;
+}
+
+int vivid_vid_cap_s_parm(struct file *file, void *priv,
+			  struct v4l2_streamparm *parm)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	unsigned int ival_sz = webcam_ival_count(dev, dev->webcam_size_idx);
+	struct v4l2_fract tpf;
+	unsigned i;
+
+	if (parm->type != (dev->multiplanar ?
+			   V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
+			   V4L2_BUF_TYPE_VIDEO_CAPTURE))
+		return -EINVAL;
+	if (!vivid_is_webcam(dev))
+		return vivid_vid_cap_g_parm(file, priv, parm);
+
+	tpf = parm->parm.capture.timeperframe;
+
+	if (tpf.denominator == 0)
+		tpf = webcam_intervals[ival_sz - 1];
+	for (i = 0; i < ival_sz; i++)
+		if (V4L2_FRACT_COMPARE(tpf, >=, webcam_intervals[i]))
+			break;
+	if (i == ival_sz)
+		i = ival_sz - 1;
+	dev->webcam_ival_idx = i;
+	tpf = webcam_intervals[dev->webcam_ival_idx];
+
+	/* resync the thread's timings */
+	dev->cap_seq_resync = true;
+	dev->timeperframe_vid_cap = tpf;
+	parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
+	parm->parm.capture.timeperframe = tpf;
+	parm->parm.capture.readbuffers  = 1;
+	return 0;
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.h b/drivers/media/test-drivers/vivid/vivid-vid-cap.h
new file mode 100644
index 000000000..d08a85927
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-vid-cap.h - video capture support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_VID_CAP_H_
+#define _VIVID_VID_CAP_H_
+
+void vivid_update_quality(struct vivid_dev *dev);
+void vivid_update_reduced_fps(struct vivid_dev *dev);
+void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls);
+void vivid_update_outputs(struct vivid_dev *dev);
+void vivid_update_connected_outputs(struct vivid_dev *dev);
+enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev);
+
+extern const v4l2_std_id vivid_standard[];
+extern const char * const vivid_ctrl_standard_strings[];
+
+extern const struct vb2_ops vivid_vid_cap_qops;
+
+int vivid_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f);
+int vivid_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f);
+int vivid_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f);
+int vivid_vid_cap_g_selection(struct file *file, void *priv, struct v4l2_selection *sel);
+int vivid_vid_cap_s_selection(struct file *file, void *priv, struct v4l2_selection *s);
+int vivid_vid_cap_g_pixelaspect(struct file *file, void *priv, int type, struct v4l2_fract *f);
+int vidioc_enum_fmt_vid_overlay(struct file *file, void  *priv, struct v4l2_fmtdesc *f);
+int vidioc_g_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_try_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_s_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *inp);
+int vidioc_g_input(struct file *file, void *priv, unsigned *i);
+int vidioc_s_input(struct file *file, void *priv, unsigned i);
+int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *vin);
+int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *vin);
+int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *vin);
+int vivid_video_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf);
+int vivid_video_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *vf);
+int vivid_video_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt);
+int vivid_video_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt);
+int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id);
+int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id);
+int vivid_vid_cap_s_dv_timings(struct file *file, void *priv, struct v4l2_dv_timings *timings);
+int vidioc_query_dv_timings(struct file *file, void *priv, struct v4l2_dv_timings *timings);
+int vidioc_s_edid(struct file *file, void *priv, struct v4l2_edid *edid);
+int vidioc_enum_framesizes(struct file *file, void *priv, struct v4l2_frmsizeenum *fsize);
+int vidioc_enum_frameintervals(struct file *file, void *priv, struct v4l2_frmivalenum *fival);
+int vivid_vid_cap_g_parm(struct file *file, void *priv, struct v4l2_streamparm *parm);
+int vivid_vid_cap_s_parm(struct file *file, void *priv, struct v4l2_streamparm *parm);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-common.c b/drivers/media/test-drivers/vivid/vivid-vid-common.c
new file mode 100644
index 000000000..786a1aa3b
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vid-common.c
@@ -0,0 +1,1137 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-vid-common.c - common video support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/videodev2.h>
+#include <linux/v4l2-dv-timings.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-dv-timings.h>
+
+#include "vivid-core.h"
+#include "vivid-vid-common.h"
+
+const struct v4l2_dv_timings_cap vivid_dv_timings_cap = {
+	.type = V4L2_DV_BT_656_1120,
+	/* keep this initialization for compatibility with GCC < 4.4.6 */
+	.reserved = { 0 },
+	V4L2_INIT_BT_TIMINGS(16, MAX_WIDTH, 16, MAX_HEIGHT, 14000000, 775000000,
+		V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
+		V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF,
+		V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_INTERLACED)
+};
+
+/* ------------------------------------------------------------------
+	Basic structures
+   ------------------------------------------------------------------*/
+
+struct vivid_fmt vivid_formats[] = {
+	{
+		.fourcc   = V4L2_PIX_FMT_YUYV,
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 1,
+		.buffers = 1,
+		.data_offset = { PLANE0_DATA_OFFSET },
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_UYVY,
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YVYU,
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_VYUY,
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUV422P,
+		.vdownsampling = { 1, 1, 1 },
+		.bit_depth = { 8, 4, 4 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 3,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUV420,
+		.vdownsampling = { 1, 2, 2 },
+		.bit_depth = { 8, 4, 4 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 3,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YVU420,
+		.vdownsampling = { 1, 2, 2 },
+		.bit_depth = { 8, 4, 4 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 3,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_NV12,
+		.vdownsampling = { 1, 2 },
+		.bit_depth = { 8, 8 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 2,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_NV21,
+		.vdownsampling = { 1, 2 },
+		.bit_depth = { 8, 8 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 2,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_NV16,
+		.vdownsampling = { 1, 1 },
+		.bit_depth = { 8, 8 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 2,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_NV61,
+		.vdownsampling = { 1, 1 },
+		.bit_depth = { 8, 8 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 2,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_NV24,
+		.vdownsampling = { 1, 1 },
+		.bit_depth = { 8, 16 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 2,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_NV42,
+		.vdownsampling = { 1, 1 },
+		.bit_depth = { 8, 16 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 2,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUV555, /* uuuvvvvv ayyyyyuu */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0x8000,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUV565, /* uuuvvvvv yyyyyuuu */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUV444, /* uuuuvvvv aaaayyyy */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0xf000,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUV32, /* ayuv */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0x000000ff,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_AYUV32,
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0x000000ff,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_XYUV32,
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_VUYA32,
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0xff000000,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_VUYX32,
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUVA32,
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0xff000000,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUVX32,
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_GREY,
+		.vdownsampling = { 1 },
+		.bit_depth = { 8 },
+		.color_enc = TGP_COLOR_ENC_LUMA,
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_Y10,
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.color_enc = TGP_COLOR_ENC_LUMA,
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_Y12,
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.color_enc = TGP_COLOR_ENC_LUMA,
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_Y16,
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.color_enc = TGP_COLOR_ENC_LUMA,
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_Y16_BE,
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.color_enc = TGP_COLOR_ENC_LUMA,
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGB332, /* rrrgggbb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 8 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGB444, /* ggggbbbb xxxxrrrr */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_XRGB444, /* ggggbbbb xxxxrrrr */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_ARGB444, /* ggggbbbb aaaarrrr */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0x00f0,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGBX444, /* bbbbxxxx rrrrgggg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGBA444, /* bbbbaaaa rrrrgggg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0x00f0,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_XBGR444, /* ggggrrrr xxxxbbbb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_ABGR444, /* ggggrrrr aaaabbbb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0x00f0,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_BGRX444, /* rrrrxxxx bbbbgggg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_BGRA444, /* rrrraaaa bbbbgggg  */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0x00f0,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGB555, /* gggbbbbb xrrrrrgg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_XRGB555, /* gggbbbbb xrrrrrgg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+		.alpha_mask = 0x8000,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGBX555, /* ggbbbbbx rrrrrggg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGBA555, /* ggbbbbba rrrrrggg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+		.alpha_mask = 0x8000,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_XBGR555, /* gggrrrrr xbbbbbgg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_ABGR555, /* gggrrrrr abbbbbgg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+		.alpha_mask = 0x8000,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_BGRX555, /* ggrrrrrx bbbbbggg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_BGRA555, /* ggrrrrra bbbbbggg */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.can_do_overlay = true,
+		.alpha_mask = 0x8000,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGB555X, /* xrrrrrgg gggbbbbb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_XRGB555X, /* xrrrrrgg gggbbbbb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_ARGB555X, /* arrrrrgg gggbbbbb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0x0080,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGB24, /* rgb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 24 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_BGR24, /* bgr */
+		.vdownsampling = { 1 },
+		.bit_depth = { 24 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_BGR666, /* bbbbbbgg ggggrrrr rrxxxxxx */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGB32, /* xrgb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_BGR32, /* bgrx */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_XRGB32, /* xrgb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_XBGR32, /* bgrx */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_ARGB32, /* argb */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0x000000ff,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_ABGR32, /* bgra */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0xff000000,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGBX32, /* rgbx */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_BGRX32, /* xbgr */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_RGBA32, /* rgba */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0x000000ff,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_BGRA32, /* abgr */
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+		.alpha_mask = 0xff000000,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SBGGR8, /* Bayer BG/GR */
+		.vdownsampling = { 1 },
+		.bit_depth = { 8 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SGBRG8, /* Bayer GB/RG */
+		.vdownsampling = { 1 },
+		.bit_depth = { 8 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SGRBG8, /* Bayer GR/BG */
+		.vdownsampling = { 1 },
+		.bit_depth = { 8 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SRGGB8, /* Bayer RG/GB */
+		.vdownsampling = { 1 },
+		.bit_depth = { 8 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SBGGR10, /* Bayer BG/GR */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SGBRG10, /* Bayer GB/RG */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SGRBG10, /* Bayer GR/BG */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SRGGB10, /* Bayer RG/GB */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SBGGR12, /* Bayer BG/GR */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SGBRG12, /* Bayer GB/RG */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SGRBG12, /* Bayer GR/BG */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SRGGB12, /* Bayer RG/GB */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SBGGR16, /* Bayer BG/GR */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SGBRG16, /* Bayer GB/RG */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SGRBG16, /* Bayer GR/BG */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_SRGGB16, /* Bayer RG/GB */
+		.vdownsampling = { 1 },
+		.bit_depth = { 16 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_HSV24, /* HSV 24bits */
+		.color_enc = TGP_COLOR_ENC_HSV,
+		.vdownsampling = { 1 },
+		.bit_depth = { 24 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_HSV32, /* HSV 32bits */
+		.color_enc = TGP_COLOR_ENC_HSV,
+		.vdownsampling = { 1 },
+		.bit_depth = { 32 },
+		.planes   = 1,
+		.buffers = 1,
+	},
+
+	/* Multiplanar formats */
+
+	{
+		.fourcc   = V4L2_PIX_FMT_NV16M,
+		.vdownsampling = { 1, 1 },
+		.bit_depth = { 8, 8 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 2,
+		.buffers = 2,
+		.data_offset = { PLANE0_DATA_OFFSET, 0 },
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_NV61M,
+		.vdownsampling = { 1, 1 },
+		.bit_depth = { 8, 8 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 2,
+		.buffers = 2,
+		.data_offset = { 0, PLANE0_DATA_OFFSET },
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUV420M,
+		.vdownsampling = { 1, 2, 2 },
+		.bit_depth = { 8, 4, 4 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 3,
+		.buffers = 3,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YVU420M,
+		.vdownsampling = { 1, 2, 2 },
+		.bit_depth = { 8, 4, 4 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 3,
+		.buffers = 3,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_NV12M,
+		.vdownsampling = { 1, 2 },
+		.bit_depth = { 8, 8 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 2,
+		.buffers = 2,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_NV21M,
+		.vdownsampling = { 1, 2 },
+		.bit_depth = { 8, 8 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 2,
+		.buffers = 2,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUV422M,
+		.vdownsampling = { 1, 1, 1 },
+		.bit_depth = { 8, 4, 4 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 3,
+		.buffers = 3,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YVU422M,
+		.vdownsampling = { 1, 1, 1 },
+		.bit_depth = { 8, 4, 4 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 3,
+		.buffers = 3,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YUV444M,
+		.vdownsampling = { 1, 1, 1 },
+		.bit_depth = { 8, 8, 8 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 3,
+		.buffers = 3,
+	},
+	{
+		.fourcc   = V4L2_PIX_FMT_YVU444M,
+		.vdownsampling = { 1, 1, 1 },
+		.bit_depth = { 8, 8, 8 },
+		.color_enc = TGP_COLOR_ENC_YCBCR,
+		.planes   = 3,
+		.buffers = 3,
+	},
+};
+
+/* There are this many multiplanar formats in the list */
+#define VIVID_MPLANAR_FORMATS 10
+
+const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat)
+{
+	const struct vivid_fmt *fmt;
+	unsigned k;
+
+	for (k = 0; k < ARRAY_SIZE(vivid_formats); k++) {
+		fmt = &vivid_formats[k];
+		if (fmt->fourcc == pixelformat)
+			if (fmt->buffers == 1 || dev->multiplanar)
+				return fmt;
+	}
+
+	return NULL;
+}
+
+struct vivid_dev *vivid_output_is_connected_to(struct vivid_dev *dev)
+{
+	struct vivid_dev *input_inst = dev->output_to_input_instance[dev->output];
+
+	if (!input_inst)
+		return NULL;
+	if (input_inst->input != dev->output_to_input_index[dev->output])
+		return NULL;
+	return input_inst;
+}
+
+struct vivid_dev *vivid_input_is_connected_to(struct vivid_dev *dev)
+{
+	s32 connected_output = dev->input_is_connected_to_output[dev->input];
+
+	if (connected_output < FIXED_MENU_ITEMS)
+		return NULL;
+	struct vivid_dev *output_inst = NULL;
+
+	if (vivid_is_hdmi_cap(dev)) {
+		output_inst = vivid_ctrl_hdmi_to_output_instance[connected_output];
+		if (vivid_ctrl_hdmi_to_output_index[connected_output] != output_inst->output)
+			return NULL;
+		return output_inst;
+	} else if (vivid_is_svid_cap(dev)) {
+		output_inst = vivid_ctrl_svid_to_output_instance[connected_output];
+		if (vivid_ctrl_svid_to_output_index[connected_output] != output_inst->output)
+			return NULL;
+		return output_inst;
+	} else {
+		return NULL;
+	}
+	return output_inst;
+}
+
+bool vivid_vid_can_loop(struct vivid_dev *dev)
+{
+	struct vivid_dev *output_inst = vivid_input_is_connected_to(dev);
+
+	if (!output_inst)
+		return false;
+	if (!vb2_is_streaming(&output_inst->vb_vid_out_q))
+		return false;
+	if (dev->src_rect.width != output_inst->sink_rect.width ||
+	    dev->src_rect.height != output_inst->sink_rect.height)
+		return false;
+	if (dev->fmt_cap->fourcc != output_inst->fmt_out->fourcc)
+		return false;
+	if (dev->field_cap != output_inst->field_out)
+		return false;
+	/*
+	 * While this can be supported, it is just too much work
+	 * to actually implement.
+	 */
+	if (dev->field_cap == V4L2_FIELD_SEQ_TB ||
+	    dev->field_cap == V4L2_FIELD_SEQ_BT)
+		return false;
+	if (vivid_is_hdmi_cap(dev))
+		return true;
+	if (!(dev->std_cap[dev->input] & V4L2_STD_525_60) !=
+	    !(output_inst->std_out & V4L2_STD_525_60))
+		return false;
+	return true;
+}
+
+void vivid_send_input_source_change(struct vivid_dev *dev, unsigned int input_index)
+{
+	struct v4l2_event ev = {
+		.type = V4L2_EVENT_SOURCE_CHANGE,
+		.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
+	};
+	ev.id = input_index;
+
+	if (video_is_registered(&dev->vid_cap_dev) && dev->has_vid_cap)
+		v4l2_event_queue(&dev->vid_cap_dev, &ev);
+	if (dev->input_type[input_index] == TV || dev->input_type[input_index] == SVID)
+		if (video_is_registered(&dev->vbi_cap_dev) && dev->has_vbi_cap)
+			v4l2_event_queue(&dev->vbi_cap_dev, &ev);
+}
+
+void vivid_send_source_change(struct vivid_dev *dev, unsigned int type)
+{
+	for (int i = 0; i < dev->num_inputs; i++)
+		if (dev->input_type[i] == type)
+			vivid_send_input_source_change(dev, i);
+}
+
+/*
+ * Conversion function that converts a single-planar format to a
+ * single-plane multiplanar format.
+ */
+void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt)
+{
+	struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp;
+	struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
+	const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix;
+	bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT;
+
+	memset(mp->reserved, 0, sizeof(mp->reserved));
+	mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
+			   V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	mp->width = pix->width;
+	mp->height = pix->height;
+	mp->pixelformat = pix->pixelformat;
+	mp->field = pix->field;
+	mp->colorspace = pix->colorspace;
+	mp->xfer_func = pix->xfer_func;
+	/* Also copies hsv_enc */
+	mp->ycbcr_enc = pix->ycbcr_enc;
+	mp->quantization = pix->quantization;
+	mp->num_planes = 1;
+	mp->flags = pix->flags;
+	ppix->sizeimage = pix->sizeimage;
+	ppix->bytesperline = pix->bytesperline;
+	memset(ppix->reserved, 0, sizeof(ppix->reserved));
+}
+
+int fmt_sp2mp_func(struct file *file, void *priv,
+		struct v4l2_format *f, fmtfunc func)
+{
+	struct v4l2_format fmt;
+	struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp;
+	struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+	int ret;
+
+	/* Converts to a mplane format */
+	fmt_sp2mp(f, &fmt);
+	/* Passes it to the generic mplane format function */
+	ret = func(file, priv, &fmt);
+	/* Copies back the mplane data to the single plane format */
+	pix->width = mp->width;
+	pix->height = mp->height;
+	pix->pixelformat = mp->pixelformat;
+	pix->field = mp->field;
+	pix->colorspace = mp->colorspace;
+	pix->xfer_func = mp->xfer_func;
+	/* Also copies hsv_enc */
+	pix->ycbcr_enc = mp->ycbcr_enc;
+	pix->quantization = mp->quantization;
+	pix->sizeimage = ppix->sizeimage;
+	pix->bytesperline = ppix->bytesperline;
+	pix->flags = mp->flags;
+	return ret;
+}
+
+int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r)
+{
+	unsigned w = r->width;
+	unsigned h = r->height;
+
+	/* sanitize w and h in case someone passes ~0 as the value */
+	w &= 0xffff;
+	h &= 0xffff;
+	if (!(flags & V4L2_SEL_FLAG_LE)) {
+		w++;
+		h++;
+		if (w < 2)
+			w = 2;
+		if (h < 2)
+			h = 2;
+	}
+	if (!(flags & V4L2_SEL_FLAG_GE)) {
+		if (w > MAX_WIDTH)
+			w = MAX_WIDTH;
+		if (h > MAX_HEIGHT)
+			h = MAX_HEIGHT;
+	}
+	w = w & ~1;
+	h = h & ~1;
+	if (w < 2 || h < 2)
+		return -ERANGE;
+	if (w > MAX_WIDTH || h > MAX_HEIGHT)
+		return -ERANGE;
+	if (r->top < 0)
+		r->top = 0;
+	if (r->left < 0)
+		r->left = 0;
+	/* sanitize left and top in case someone passes ~0 as the value */
+	r->left &= 0xfffe;
+	r->top &= 0xfffe;
+	if (r->left + w > MAX_WIDTH)
+		r->left = MAX_WIDTH - w;
+	if (r->top + h > MAX_HEIGHT)
+		r->top = MAX_HEIGHT - h;
+	if ((flags & (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE)) ==
+			(V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE) &&
+	    (r->width != w || r->height != h))
+		return -ERANGE;
+	r->width = w;
+	r->height = h;
+	return 0;
+}
+
+int vivid_enum_fmt_vid(struct file *file, void  *priv,
+					struct v4l2_fmtdesc *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	const struct vivid_fmt *fmt;
+
+	if (f->index >= ARRAY_SIZE(vivid_formats) -
+	    (dev->multiplanar ? 0 : VIVID_MPLANAR_FORMATS))
+		return -EINVAL;
+
+	fmt = &vivid_formats[f->index];
+
+	f->pixelformat = fmt->fourcc;
+
+	if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+	    f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+		return 0;
+	/*
+	 * For capture devices, we support the CSC API.
+	 * We allow userspace to:
+	 * 1. set the colorspace
+	 * 2. set the xfer_func
+	 * 3. set the ycbcr_enc on YUV formats
+	 * 4. set the hsv_enc on HSV formats
+	 * 5. set the quantization on YUV and RGB formats
+	 */
+	f->flags |= V4L2_FMT_FLAG_CSC_COLORSPACE;
+	f->flags |= V4L2_FMT_FLAG_CSC_XFER_FUNC;
+
+	if (fmt->color_enc == TGP_COLOR_ENC_YCBCR) {
+		f->flags |= V4L2_FMT_FLAG_CSC_YCBCR_ENC;
+		f->flags |= V4L2_FMT_FLAG_CSC_QUANTIZATION;
+	} else if (fmt->color_enc == TGP_COLOR_ENC_HSV) {
+		f->flags |= V4L2_FMT_FLAG_CSC_HSV_ENC;
+	} else if (fmt->color_enc == TGP_COLOR_ENC_RGB) {
+		f->flags |= V4L2_FMT_FLAG_CSC_QUANTIZATION;
+	}
+
+	return 0;
+}
+
+int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX) {
+		if (!vivid_is_sdtv_cap(dev))
+			return -ENODATA;
+		*id = dev->std_cap[dev->input];
+	} else {
+		if (!vivid_is_svid_out(dev))
+			return -ENODATA;
+		*id = dev->std_out;
+	}
+	return 0;
+}
+
+int vidioc_g_dv_timings(struct file *file, void *priv,
+				    struct v4l2_dv_timings *timings)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX) {
+		if (!vivid_is_hdmi_cap(dev))
+			return -ENODATA;
+		*timings = dev->dv_timings_cap[dev->input];
+	} else {
+		if (!vivid_is_hdmi_out(dev))
+			return -ENODATA;
+		*timings = dev->dv_timings_out;
+	}
+	return 0;
+}
+
+int vidioc_enum_dv_timings(struct file *file, void *priv,
+				    struct v4l2_enum_dv_timings *timings)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX) {
+		if (!vivid_is_hdmi_cap(dev))
+			return -ENODATA;
+	} else {
+		if (!vivid_is_hdmi_out(dev))
+			return -ENODATA;
+	}
+	return v4l2_enum_dv_timings_cap(timings, &vivid_dv_timings_cap,
+			NULL, NULL);
+}
+
+int vidioc_dv_timings_cap(struct file *file, void *priv,
+				    struct v4l2_dv_timings_cap *cap)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct video_device *vdev = video_devdata(file);
+
+	if (vdev->vfl_dir == VFL_DIR_RX) {
+		if (!vivid_is_hdmi_cap(dev))
+			return -ENODATA;
+	} else {
+		if (!vivid_is_hdmi_out(dev))
+			return -ENODATA;
+	}
+	*cap = vivid_dv_timings_cap;
+	return 0;
+}
+
+int vidioc_g_edid(struct file *file, void *priv,
+			 struct v4l2_edid *edid)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct vivid_dev *dev_rx = dev;
+	struct video_device *vdev = video_devdata(file);
+	struct cec_adapter *adap;
+	unsigned int loc;
+
+	memset(edid->reserved, 0, sizeof(edid->reserved));
+	if (vdev->vfl_dir == VFL_DIR_RX) {
+		if (edid->pad >= dev->num_inputs)
+			return -EINVAL;
+		if (dev->input_type[edid->pad] != HDMI)
+			return -EINVAL;
+		adap = dev->cec_rx_adap;
+	} else {
+		if (edid->pad >= dev->num_outputs)
+			return -EINVAL;
+		if (dev->output_type[edid->pad] != HDMI)
+			return -EINVAL;
+		dev_rx = dev->output_to_input_instance[edid->pad];
+		if (!dev_rx)
+			return -ENODATA;
+
+		unsigned int hdmi_output = dev->output_to_iface_index[edid->pad];
+
+		adap = dev->cec_tx_adap[hdmi_output];
+	}
+	if (edid->start_block == 0 && edid->blocks == 0) {
+		edid->blocks = dev_rx->edid_blocks;
+		return 0;
+	}
+	if (dev_rx->edid_blocks == 0)
+		return -ENODATA;
+	if (edid->start_block >= dev_rx->edid_blocks)
+		return -EINVAL;
+	if (edid->blocks > dev_rx->edid_blocks - edid->start_block)
+		edid->blocks = dev_rx->edid_blocks - edid->start_block;
+
+	memcpy(edid->edid, dev_rx->edid + edid->start_block * 128, edid->blocks * 128);
+
+	loc = cec_get_edid_spa_location(dev_rx->edid,
+					dev_rx->edid_blocks * 128);
+	if (vdev->vfl_dir == VFL_DIR_TX && adap && loc &&
+	    loc >= edid->start_block * 128 &&
+	    loc < (edid->start_block + edid->blocks) * 128) {
+		unsigned int i;
+		u8 sum = 0;
+
+		loc -= edid->start_block * 128;
+		edid->edid[loc] = adap->phys_addr >> 8;
+		edid->edid[loc + 1] = adap->phys_addr & 0xff;
+		loc &= ~0x7f;
+
+		/* update the checksum */
+		for (i = loc; i < loc + 127; i++)
+			sum += edid->edid[i];
+		edid->edid[i] = 256 - sum;
+	}
+	return 0;
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-common.h b/drivers/media/test-drivers/vivid/vivid-vid-common.h
new file mode 100644
index 000000000..fb5878174
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vid-common.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-vid-common.h - common video support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_VID_COMMON_H_
+#define _VIVID_VID_COMMON_H_
+
+typedef int (*fmtfunc)(struct file *file, void *priv, struct v4l2_format *f);
+
+/*
+ * Conversion function that converts a single-planar format to a
+ * single-plane multiplanar format.
+ */
+void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt);
+int fmt_sp2mp_func(struct file *file, void *priv,
+		struct v4l2_format *f, fmtfunc func);
+
+extern const struct v4l2_dv_timings_cap vivid_dv_timings_cap;
+
+const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat);
+
+struct vivid_dev *vivid_input_is_connected_to(struct vivid_dev *dev);
+struct vivid_dev *vivid_output_is_connected_to(struct vivid_dev *dev);
+bool vivid_vid_can_loop(struct vivid_dev *dev);
+void vivid_send_source_change(struct vivid_dev *dev, unsigned int type);
+void vivid_send_input_source_change(struct vivid_dev *dev, unsigned int input_index);
+
+int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r);
+
+int vivid_enum_fmt_vid(struct file *file, void  *priv, struct v4l2_fmtdesc *f);
+int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id);
+int vidioc_g_dv_timings(struct file *file, void *priv, struct v4l2_dv_timings *timings);
+int vidioc_enum_dv_timings(struct file *file, void *priv, struct v4l2_enum_dv_timings *timings);
+int vidioc_dv_timings_cap(struct file *file, void *priv, struct v4l2_dv_timings_cap *cap);
+int vidioc_g_edid(struct file *file, void *priv, struct v4l2_edid *edid);
+int vidioc_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub);
+
+#endif
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-out.c b/drivers/media/test-drivers/vivid/vivid-vid-out.c
new file mode 100644
index 000000000..23e1d5a18
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vid-out.c
@@ -0,0 +1,1129 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-vid-out.c - video output support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/videodev2.h>
+#include <linux/v4l2-dv-timings.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-dv-timings.h>
+#include <media/v4l2-rect.h>
+
+#include "vivid-core.h"
+#include "vivid-osd.h"
+#include "vivid-vid-common.h"
+#include "vivid-kthread-out.h"
+#include "vivid-vid-out.h"
+
+static int vid_out_queue_setup(struct vb2_queue *vq,
+		       unsigned *nbuffers, unsigned *nplanes,
+		       unsigned sizes[], struct device *alloc_devs[])
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	const struct vivid_fmt *vfmt = dev->fmt_out;
+	unsigned planes = vfmt->buffers;
+	unsigned h = dev->fmt_out_rect.height;
+	unsigned int size = dev->bytesperline_out[0] * h + vfmt->data_offset[0];
+	unsigned p;
+
+	for (p = vfmt->buffers; p < vfmt->planes; p++)
+		size += dev->bytesperline_out[p] * h / vfmt->vdownsampling[p] +
+			vfmt->data_offset[p];
+
+	if (dev->field_out == V4L2_FIELD_ALTERNATE) {
+		/*
+		 * You cannot use write() with FIELD_ALTERNATE since the field
+		 * information (TOP/BOTTOM) cannot be passed to the kernel.
+		 */
+		if (vb2_fileio_is_active(vq))
+			return -EINVAL;
+	}
+
+	if (dev->queue_setup_error) {
+		/*
+		 * Error injection: test what happens if queue_setup() returns
+		 * an error.
+		 */
+		dev->queue_setup_error = false;
+		return -EINVAL;
+	}
+
+	if (*nplanes) {
+		/*
+		 * Check if the number of requested planes match
+		 * the number of planes in the current format. You can't mix that.
+		 */
+		if (*nplanes != planes)
+			return -EINVAL;
+		if (sizes[0] < size)
+			return -EINVAL;
+		for (p = 1; p < planes; p++) {
+			if (sizes[p] < dev->bytesperline_out[p] * h /
+					vfmt->vdownsampling[p] +
+					vfmt->data_offset[p])
+				return -EINVAL;
+		}
+	} else {
+		for (p = 0; p < planes; p++)
+			sizes[p] = p ? dev->bytesperline_out[p] * h /
+					vfmt->vdownsampling[p] +
+					vfmt->data_offset[p] : size;
+	}
+
+	*nplanes = planes;
+
+	dprintk(dev, 1, "%s: count=%u\n", __func__, *nbuffers);
+	for (p = 0; p < planes; p++)
+		dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
+	return 0;
+}
+
+static int vid_out_buf_out_validate(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (dev->field_out != V4L2_FIELD_ALTERNATE)
+		vbuf->field = dev->field_out;
+	else if (vbuf->field != V4L2_FIELD_TOP &&
+		 vbuf->field != V4L2_FIELD_BOTTOM)
+		return -EINVAL;
+	return 0;
+}
+
+static int vid_out_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	const struct vivid_fmt *vfmt = dev->fmt_out;
+	unsigned int planes = vfmt->buffers;
+	unsigned int h = dev->fmt_out_rect.height;
+	unsigned int size = dev->bytesperline_out[0] * h;
+	unsigned p;
+
+	for (p = vfmt->buffers; p < vfmt->planes; p++)
+		size += dev->bytesperline_out[p] * h / vfmt->vdownsampling[p];
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (WARN_ON(NULL == dev->fmt_out))
+		return -EINVAL;
+
+	if (dev->buf_prepare_error) {
+		/*
+		 * Error injection: test what happens if buf_prepare() returns
+		 * an error.
+		 */
+		dev->buf_prepare_error = false;
+		return -EINVAL;
+	}
+
+	for (p = 0; p < planes; p++) {
+		if (p)
+			size = dev->bytesperline_out[p] * h / vfmt->vdownsampling[p];
+		size += vb->planes[p].data_offset;
+
+		if (vb2_get_plane_payload(vb, p) < size) {
+			dprintk(dev, 1, "%s the payload is too small for plane %u (%lu < %u)\n",
+					__func__, p, vb2_get_plane_payload(vb, p), size);
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static void vid_out_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	spin_lock(&dev->slock);
+	list_add_tail(&buf->list, &dev->vid_out_active);
+	spin_unlock(&dev->slock);
+}
+
+static int vid_out_start_streaming(struct vb2_queue *vq, unsigned count)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	int err;
+
+	dev->vid_out_seq_count = 0;
+	dprintk(dev, 1, "%s\n", __func__);
+	if (dev->start_streaming_error) {
+		dev->start_streaming_error = false;
+		err = -EINVAL;
+	} else {
+		err = vivid_start_generating_vid_out(dev, &dev->vid_out_streaming);
+	}
+	if (err) {
+		struct vivid_buffer *buf, *tmp;
+
+		list_for_each_entry_safe(buf, tmp, &dev->vid_out_active, list) {
+			list_del(&buf->list);
+			vb2_buffer_done(&buf->vb.vb2_buf,
+					VB2_BUF_STATE_QUEUED);
+		}
+	}
+	return err;
+}
+
+/* abort streaming and wait for last buffer */
+static void vid_out_stop_streaming(struct vb2_queue *vq)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+
+	dprintk(dev, 1, "%s\n", __func__);
+	vivid_stop_generating_vid_out(dev, &dev->vid_out_streaming);
+}
+
+static void vid_out_buf_request_complete(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+	v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vid_out);
+}
+
+const struct vb2_ops vivid_vid_out_qops = {
+	.queue_setup		= vid_out_queue_setup,
+	.buf_out_validate		= vid_out_buf_out_validate,
+	.buf_prepare		= vid_out_buf_prepare,
+	.buf_queue		= vid_out_buf_queue,
+	.start_streaming	= vid_out_start_streaming,
+	.stop_streaming		= vid_out_stop_streaming,
+	.buf_request_complete	= vid_out_buf_request_complete,
+};
+
+/*
+ * Called whenever the format has to be reset which can occur when
+ * changing outputs, standard, timings, etc.
+ */
+void vivid_update_format_out(struct vivid_dev *dev)
+{
+	struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt;
+	unsigned size, p;
+	u64 pixelclock;
+
+	/*
+	 * This resets the format, so must never be called while vb2_is_busy().
+	 */
+	if (WARN_ON(vb2_is_busy(&dev->vb_vid_out_q)))
+		return;
+
+	switch (dev->output_type[dev->output]) {
+	case SVID:
+	default:
+		dev->field_out = dev->tv_field_out;
+		dev->sink_rect.width = 720;
+		if (dev->std_out & V4L2_STD_525_60) {
+			dev->sink_rect.height = 480;
+			dev->timeperframe_vid_out = (struct v4l2_fract) { 1001, 30000 };
+			dev->service_set_out = V4L2_SLICED_CAPTION_525;
+		} else {
+			dev->sink_rect.height = 576;
+			dev->timeperframe_vid_out = (struct v4l2_fract) { 1000, 25000 };
+			dev->service_set_out = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
+		}
+		dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M;
+		break;
+	case HDMI:
+		dev->sink_rect.width = bt->width;
+		dev->sink_rect.height = bt->height;
+		size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
+
+		if (can_reduce_fps(bt) && (bt->flags & V4L2_DV_FL_REDUCED_FPS))
+			pixelclock = div_u64(bt->pixelclock * 1000, 1001);
+		else
+			pixelclock = bt->pixelclock;
+
+		dev->timeperframe_vid_out = (struct v4l2_fract) {
+			size / 100, (u32)pixelclock / 100
+		};
+		if (bt->interlaced)
+			dev->field_out = V4L2_FIELD_ALTERNATE;
+		else
+			dev->field_out = V4L2_FIELD_NONE;
+		if (!dev->dvi_d_out && (bt->flags & V4L2_DV_FL_IS_CE_VIDEO)) {
+			if (bt->width == 720 && bt->height <= 576)
+				dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M;
+			else
+				dev->colorspace_out = V4L2_COLORSPACE_REC709;
+		} else {
+			dev->colorspace_out = V4L2_COLORSPACE_SRGB;
+		}
+		break;
+	}
+	dev->xfer_func_out = V4L2_XFER_FUNC_DEFAULT;
+	dev->ycbcr_enc_out = V4L2_YCBCR_ENC_DEFAULT;
+	dev->hsv_enc_out = V4L2_HSV_ENC_180;
+	dev->quantization_out = V4L2_QUANTIZATION_DEFAULT;
+	dev->compose_out = dev->sink_rect;
+	dev->compose_bounds_out = dev->sink_rect;
+	dev->crop_out = dev->compose_out;
+	if (V4L2_FIELD_HAS_T_OR_B(dev->field_out))
+		dev->crop_out.height /= 2;
+	dev->fmt_out_rect = dev->crop_out;
+	for (p = 0; p < dev->fmt_out->planes; p++)
+		dev->bytesperline_out[p] =
+			(dev->sink_rect.width * dev->fmt_out->bit_depth[p]) / 8;
+}
+
+/* Map the field to something that is valid for the current output */
+static enum v4l2_field vivid_field_out(struct vivid_dev *dev, enum v4l2_field field)
+{
+	if (vivid_is_svid_out(dev)) {
+		switch (field) {
+		case V4L2_FIELD_INTERLACED_TB:
+		case V4L2_FIELD_INTERLACED_BT:
+		case V4L2_FIELD_SEQ_TB:
+		case V4L2_FIELD_SEQ_BT:
+		case V4L2_FIELD_ALTERNATE:
+			return field;
+		case V4L2_FIELD_INTERLACED:
+		default:
+			return V4L2_FIELD_INTERLACED;
+		}
+	}
+	if (vivid_is_hdmi_out(dev))
+		return dev->dv_timings_out.bt.interlaced ? V4L2_FIELD_ALTERNATE :
+						       V4L2_FIELD_NONE;
+	return V4L2_FIELD_NONE;
+}
+
+static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
+{
+	if (vivid_is_svid_out(dev))
+		return (dev->std_out & V4L2_STD_525_60) ?
+			TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
+
+	if (vivid_is_hdmi_out(dev) &&
+	    dev->sink_rect.width == 720 && dev->sink_rect.height <= 576)
+		return dev->sink_rect.height == 480 ?
+			TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
+
+	return TPG_PIXEL_ASPECT_SQUARE;
+}
+
+int vivid_g_fmt_vid_out(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
+	const struct vivid_fmt *fmt = dev->fmt_out;
+	unsigned p;
+
+	mp->width        = dev->fmt_out_rect.width;
+	mp->height       = dev->fmt_out_rect.height;
+	mp->field        = dev->field_out;
+	mp->pixelformat  = fmt->fourcc;
+	mp->colorspace   = dev->colorspace_out;
+	mp->xfer_func    = dev->xfer_func_out;
+	mp->ycbcr_enc    = dev->ycbcr_enc_out;
+	mp->quantization = dev->quantization_out;
+	mp->num_planes = fmt->buffers;
+	for (p = 0; p < mp->num_planes; p++) {
+		mp->plane_fmt[p].bytesperline = dev->bytesperline_out[p];
+		mp->plane_fmt[p].sizeimage =
+			mp->plane_fmt[p].bytesperline * mp->height /
+			fmt->vdownsampling[p] + fmt->data_offset[p];
+	}
+	for (p = fmt->buffers; p < fmt->planes; p++) {
+		unsigned stride = dev->bytesperline_out[p];
+
+		mp->plane_fmt[0].sizeimage +=
+			(stride * mp->height) / fmt->vdownsampling[p];
+	}
+	return 0;
+}
+
+int vivid_try_fmt_vid_out(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt;
+	struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
+	struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
+	const struct vivid_fmt *fmt;
+	unsigned bytesperline, max_bpl;
+	unsigned factor = 1;
+	unsigned w, h;
+	unsigned p;
+
+	fmt = vivid_get_format(dev, mp->pixelformat);
+	if (!fmt) {
+		dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
+			mp->pixelformat);
+		mp->pixelformat = V4L2_PIX_FMT_YUYV;
+		fmt = vivid_get_format(dev, mp->pixelformat);
+	}
+
+	mp->field = vivid_field_out(dev, mp->field);
+	if (vivid_is_svid_out(dev)) {
+		w = 720;
+		h = (dev->std_out & V4L2_STD_525_60) ? 480 : 576;
+	} else {
+		w = dev->sink_rect.width;
+		h = dev->sink_rect.height;
+	}
+	if (V4L2_FIELD_HAS_T_OR_B(mp->field))
+		factor = 2;
+	if (!dev->has_scaler_out && !dev->has_crop_out && !dev->has_compose_out) {
+		mp->width = w;
+		mp->height = h / factor;
+	} else {
+		struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
+
+		v4l2_rect_set_min_size(&r, &vivid_min_rect);
+		v4l2_rect_set_max_size(&r, &vivid_max_rect);
+		if (dev->has_scaler_out && !dev->has_crop_out) {
+			struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
+
+			v4l2_rect_set_max_size(&r, &max_r);
+		} else if (!dev->has_scaler_out && dev->has_compose_out && !dev->has_crop_out) {
+			v4l2_rect_set_max_size(&r, &dev->sink_rect);
+		} else if (!dev->has_scaler_out && !dev->has_compose_out) {
+			v4l2_rect_set_min_size(&r, &dev->sink_rect);
+		}
+		mp->width = r.width;
+		mp->height = r.height / factor;
+	}
+
+	/* This driver supports custom bytesperline values */
+
+	mp->num_planes = fmt->buffers;
+	for (p = 0; p < fmt->buffers; p++) {
+		/* Calculate the minimum supported bytesperline value */
+		bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
+		/* Calculate the maximum supported bytesperline value */
+		max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
+
+		if (pfmt[p].bytesperline > max_bpl)
+			pfmt[p].bytesperline = max_bpl;
+		if (pfmt[p].bytesperline < bytesperline)
+			pfmt[p].bytesperline = bytesperline;
+
+		pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
+				fmt->vdownsampling[p] + fmt->data_offset[p];
+
+		memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
+	}
+	for (p = fmt->buffers; p < fmt->planes; p++)
+		pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
+			(fmt->bit_depth[p] / fmt->vdownsampling[p])) /
+			(fmt->bit_depth[0] / fmt->vdownsampling[0]);
+
+	mp->xfer_func = V4L2_XFER_FUNC_DEFAULT;
+	mp->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+	mp->quantization = V4L2_QUANTIZATION_DEFAULT;
+	if (vivid_is_svid_out(dev)) {
+		mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
+	} else if (dev->dvi_d_out || !(bt->flags & V4L2_DV_FL_IS_CE_VIDEO)) {
+		mp->colorspace = V4L2_COLORSPACE_SRGB;
+		if (dev->dvi_d_out)
+			mp->quantization = V4L2_QUANTIZATION_LIM_RANGE;
+	} else if (bt->width == 720 && bt->height <= 576) {
+		mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
+	} else if (mp->colorspace != V4L2_COLORSPACE_SMPTE170M &&
+		   mp->colorspace != V4L2_COLORSPACE_REC709 &&
+		   mp->colorspace != V4L2_COLORSPACE_OPRGB &&
+		   mp->colorspace != V4L2_COLORSPACE_BT2020 &&
+		   mp->colorspace != V4L2_COLORSPACE_SRGB) {
+		mp->colorspace = V4L2_COLORSPACE_REC709;
+	}
+	memset(mp->reserved, 0, sizeof(mp->reserved));
+	return 0;
+}
+
+int vivid_s_fmt_vid_out(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_rect *crop = &dev->crop_out;
+	struct v4l2_rect *compose = &dev->compose_out;
+	struct vb2_queue *q = &dev->vb_vid_out_q;
+	int ret = vivid_try_fmt_vid_out(file, priv, f);
+	unsigned factor = 1;
+	unsigned p;
+
+	if (ret < 0)
+		return ret;
+
+	if (vb2_is_busy(q) &&
+	    (vivid_is_svid_out(dev) ||
+	     mp->width != dev->fmt_out_rect.width ||
+	     mp->height != dev->fmt_out_rect.height ||
+	     mp->pixelformat != dev->fmt_out->fourcc ||
+	     mp->field != dev->field_out)) {
+		dprintk(dev, 1, "%s device busy\n", __func__);
+		return -EBUSY;
+	}
+
+	/*
+	 * Allow for changing the colorspace on the fly. Useful for testing
+	 * purposes, and it is something that HDMI transmitters are able
+	 * to do.
+	 */
+	if (vb2_is_busy(q))
+		goto set_colorspace;
+
+	dev->fmt_out = vivid_get_format(dev, mp->pixelformat);
+	if (V4L2_FIELD_HAS_T_OR_B(mp->field))
+		factor = 2;
+
+	if (dev->has_scaler_out || dev->has_crop_out || dev->has_compose_out) {
+		struct v4l2_rect r = { 0, 0, mp->width, mp->height };
+
+		if (dev->has_scaler_out) {
+			if (dev->has_crop_out)
+				v4l2_rect_map_inside(crop, &r);
+			else
+				*crop = r;
+			if (dev->has_compose_out && !dev->has_crop_out) {
+				struct v4l2_rect min_r = {
+					0, 0,
+					r.width / MAX_ZOOM,
+					factor * r.height / MAX_ZOOM
+				};
+				struct v4l2_rect max_r = {
+					0, 0,
+					r.width * MAX_ZOOM,
+					factor * r.height * MAX_ZOOM
+				};
+
+				v4l2_rect_set_min_size(compose, &min_r);
+				v4l2_rect_set_max_size(compose, &max_r);
+				v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
+			} else if (dev->has_compose_out) {
+				struct v4l2_rect min_r = {
+					0, 0,
+					crop->width / MAX_ZOOM,
+					factor * crop->height / MAX_ZOOM
+				};
+				struct v4l2_rect max_r = {
+					0, 0,
+					crop->width * MAX_ZOOM,
+					factor * crop->height * MAX_ZOOM
+				};
+
+				v4l2_rect_set_min_size(compose, &min_r);
+				v4l2_rect_set_max_size(compose, &max_r);
+				v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
+			}
+		} else if (dev->has_compose_out && !dev->has_crop_out) {
+			v4l2_rect_set_size_to(crop, &r);
+			r.height *= factor;
+			v4l2_rect_set_size_to(compose, &r);
+			v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
+		} else if (!dev->has_compose_out) {
+			v4l2_rect_map_inside(crop, &r);
+			r.height /= factor;
+			v4l2_rect_set_size_to(compose, &r);
+		} else {
+			r.height *= factor;
+			v4l2_rect_set_max_size(compose, &r);
+			v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
+			crop->top *= factor;
+			crop->height *= factor;
+			v4l2_rect_set_size_to(crop, compose);
+			v4l2_rect_map_inside(crop, &r);
+			crop->top /= factor;
+			crop->height /= factor;
+		}
+	} else {
+		struct v4l2_rect r = { 0, 0, mp->width, mp->height };
+
+		v4l2_rect_set_size_to(crop, &r);
+		r.height /= factor;
+		v4l2_rect_set_size_to(compose, &r);
+	}
+
+	dev->fmt_out_rect.width = mp->width;
+	dev->fmt_out_rect.height = mp->height;
+	for (p = 0; p < mp->num_planes; p++)
+		dev->bytesperline_out[p] = mp->plane_fmt[p].bytesperline;
+	for (p = dev->fmt_out->buffers; p < dev->fmt_out->planes; p++)
+		dev->bytesperline_out[p] =
+			(dev->bytesperline_out[0] * dev->fmt_out->bit_depth[p]) /
+			dev->fmt_out->bit_depth[0];
+	dev->field_out = mp->field;
+	if (vivid_is_svid_out(dev))
+		dev->tv_field_out = mp->field;
+
+set_colorspace:
+	dev->colorspace_out = mp->colorspace;
+	dev->xfer_func_out = mp->xfer_func;
+	dev->ycbcr_enc_out = mp->ycbcr_enc;
+	dev->quantization_out = mp->quantization;
+	struct vivid_dev *in_dev = vivid_output_is_connected_to(dev);
+
+	if (in_dev) {
+		vivid_send_source_change(in_dev, SVID);
+		vivid_send_source_change(in_dev, HDMI);
+	}
+	return 0;
+}
+
+int vidioc_g_fmt_vid_out_mplane(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+	return vivid_g_fmt_vid_out(file, priv, f);
+}
+
+int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+	return vivid_try_fmt_vid_out(file, priv, f);
+}
+
+int vidioc_s_fmt_vid_out_mplane(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+	return vivid_s_fmt_vid_out(file, priv, f);
+}
+
+int vidioc_g_fmt_vid_out(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+	return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_out);
+}
+
+int vidioc_try_fmt_vid_out(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+	return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_out);
+}
+
+int vidioc_s_fmt_vid_out(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+	return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_out);
+}
+
+int vivid_vid_out_g_selection(struct file *file, void *priv,
+			      struct v4l2_selection *sel)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->has_crop_out && !dev->has_compose_out)
+		return -ENOTTY;
+	if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	sel->r.left = sel->r.top = 0;
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP:
+		if (!dev->has_crop_out)
+			return -EINVAL;
+		sel->r = dev->crop_out;
+		break;
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+		if (!dev->has_crop_out)
+			return -EINVAL;
+		sel->r = dev->fmt_out_rect;
+		break;
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		if (!dev->has_crop_out)
+			return -EINVAL;
+		sel->r = vivid_max_rect;
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+		if (!dev->has_compose_out)
+			return -EINVAL;
+		sel->r = dev->compose_out;
+		break;
+	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+		if (!dev->has_compose_out)
+			return -EINVAL;
+		sel->r = dev->sink_rect;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+int vivid_vid_out_s_selection(struct file *file, void *priv, struct v4l2_selection *s)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_rect *crop = &dev->crop_out;
+	struct v4l2_rect *compose = &dev->compose_out;
+	unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_out) ? 2 : 1;
+	int ret;
+
+	if (!dev->has_crop_out && !dev->has_compose_out)
+		return -ENOTTY;
+	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_CROP:
+		if (!dev->has_crop_out)
+			return -EINVAL;
+		ret = vivid_vid_adjust_sel(s->flags, &s->r);
+		if (ret)
+			return ret;
+		v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
+		v4l2_rect_set_max_size(&s->r, &dev->fmt_out_rect);
+		if (dev->has_scaler_out) {
+			struct v4l2_rect max_rect = {
+				0, 0,
+				dev->sink_rect.width * MAX_ZOOM,
+				(dev->sink_rect.height / factor) * MAX_ZOOM
+			};
+
+			v4l2_rect_set_max_size(&s->r, &max_rect);
+			if (dev->has_compose_out) {
+				struct v4l2_rect min_rect = {
+					0, 0,
+					s->r.width / MAX_ZOOM,
+					(s->r.height * factor) / MAX_ZOOM
+				};
+				struct v4l2_rect max_rect = {
+					0, 0,
+					s->r.width * MAX_ZOOM,
+					(s->r.height * factor) * MAX_ZOOM
+				};
+
+				v4l2_rect_set_min_size(compose, &min_rect);
+				v4l2_rect_set_max_size(compose, &max_rect);
+				v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
+			}
+		} else if (dev->has_compose_out) {
+			s->r.top *= factor;
+			s->r.height *= factor;
+			v4l2_rect_set_max_size(&s->r, &dev->sink_rect);
+			v4l2_rect_set_size_to(compose, &s->r);
+			v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
+			s->r.top /= factor;
+			s->r.height /= factor;
+		} else {
+			v4l2_rect_set_size_to(&s->r, &dev->sink_rect);
+			s->r.height /= factor;
+		}
+		v4l2_rect_map_inside(&s->r, &dev->fmt_out_rect);
+		*crop = s->r;
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+		if (!dev->has_compose_out)
+			return -EINVAL;
+		ret = vivid_vid_adjust_sel(s->flags, &s->r);
+		if (ret)
+			return ret;
+		v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
+		v4l2_rect_set_max_size(&s->r, &dev->sink_rect);
+		v4l2_rect_map_inside(&s->r, &dev->compose_bounds_out);
+		s->r.top /= factor;
+		s->r.height /= factor;
+		if (dev->has_scaler_out) {
+			struct v4l2_rect fmt = dev->fmt_out_rect;
+			struct v4l2_rect max_rect = {
+				0, 0,
+				s->r.width * MAX_ZOOM,
+				s->r.height * MAX_ZOOM
+			};
+			struct v4l2_rect min_rect = {
+				0, 0,
+				s->r.width / MAX_ZOOM,
+				s->r.height / MAX_ZOOM
+			};
+
+			v4l2_rect_set_min_size(&fmt, &min_rect);
+			if (!dev->has_crop_out)
+				v4l2_rect_set_max_size(&fmt, &max_rect);
+			if (!v4l2_rect_same_size(&dev->fmt_out_rect, &fmt) &&
+			    vb2_is_busy(&dev->vb_vid_out_q))
+				return -EBUSY;
+			if (dev->has_crop_out) {
+				v4l2_rect_set_min_size(crop, &min_rect);
+				v4l2_rect_set_max_size(crop, &max_rect);
+			}
+			dev->fmt_out_rect = fmt;
+		} else if (dev->has_crop_out) {
+			struct v4l2_rect fmt = dev->fmt_out_rect;
+
+			v4l2_rect_set_min_size(&fmt, &s->r);
+			if (!v4l2_rect_same_size(&dev->fmt_out_rect, &fmt) &&
+			    vb2_is_busy(&dev->vb_vid_out_q))
+				return -EBUSY;
+			dev->fmt_out_rect = fmt;
+			v4l2_rect_set_size_to(crop, &s->r);
+			v4l2_rect_map_inside(crop, &dev->fmt_out_rect);
+		} else {
+			if (!v4l2_rect_same_size(&s->r, &dev->fmt_out_rect) &&
+			    vb2_is_busy(&dev->vb_vid_out_q))
+				return -EBUSY;
+			v4l2_rect_set_size_to(&dev->fmt_out_rect, &s->r);
+			v4l2_rect_set_size_to(crop, &s->r);
+			crop->height /= factor;
+			v4l2_rect_map_inside(crop, &dev->fmt_out_rect);
+		}
+		s->r.top *= factor;
+		s->r.height *= factor;
+		*compose = s->r;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int vivid_vid_out_g_pixelaspect(struct file *file, void *priv,
+				int type, struct v4l2_fract *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	switch (vivid_get_pixel_aspect(dev)) {
+	case TPG_PIXEL_ASPECT_NTSC:
+		f->numerator = 11;
+		f->denominator = 10;
+		break;
+	case TPG_PIXEL_ASPECT_PAL:
+		f->numerator = 54;
+		f->denominator = 59;
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+int vidioc_g_fmt_vid_out_overlay(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	const struct v4l2_rect *compose = &dev->compose_out;
+	struct v4l2_window *win = &f->fmt.win;
+
+	if (!dev->has_fb)
+		return -EINVAL;
+	win->w.top = dev->overlay_out_top;
+	win->w.left = dev->overlay_out_left;
+	win->w.width = compose->width;
+	win->w.height = compose->height;
+	win->field = V4L2_FIELD_ANY;
+	win->chromakey = dev->chromakey_out;
+	win->global_alpha = dev->global_alpha_out;
+	return 0;
+}
+
+int vidioc_try_fmt_vid_out_overlay(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	const struct v4l2_rect *compose = &dev->compose_out;
+	struct v4l2_window *win = &f->fmt.win;
+
+	if (!dev->has_fb)
+		return -EINVAL;
+	win->w.left = clamp_t(int, win->w.left,
+			      -dev->display_width, dev->display_width);
+	win->w.top = clamp_t(int, win->w.top,
+			     -dev->display_height, dev->display_height);
+	win->w.width = compose->width;
+	win->w.height = compose->height;
+	/*
+	 * It makes no sense for an OSD to overlay only top or bottom fields,
+	 * so always set this to ANY.
+	 */
+	win->field = V4L2_FIELD_ANY;
+	return 0;
+}
+
+int vidioc_s_fmt_vid_out_overlay(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_window *win = &f->fmt.win;
+	int ret = vidioc_try_fmt_vid_out_overlay(file, priv, f);
+
+	if (ret)
+		return ret;
+
+	dev->overlay_out_top = win->w.top;
+	dev->overlay_out_left = win->w.left;
+	dev->chromakey_out = win->chromakey;
+	dev->global_alpha_out = win->global_alpha;
+	return ret;
+}
+
+int vivid_vid_out_overlay(struct file *file, void *priv, unsigned i)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (i && !dev->fmt_out->can_do_overlay) {
+		dprintk(dev, 1, "unsupported output format for output overlay\n");
+		return -EINVAL;
+	}
+
+	dev->overlay_out_enabled = i;
+	return 0;
+}
+
+int vivid_vid_out_g_fbuf(struct file *file, void *priv,
+				struct v4l2_framebuffer *a)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	a->capability = V4L2_FBUF_CAP_EXTERNOVERLAY |
+			V4L2_FBUF_CAP_CHROMAKEY |
+			V4L2_FBUF_CAP_SRC_CHROMAKEY |
+			V4L2_FBUF_CAP_GLOBAL_ALPHA |
+			V4L2_FBUF_CAP_LOCAL_ALPHA |
+			V4L2_FBUF_CAP_LOCAL_INV_ALPHA;
+	a->flags = V4L2_FBUF_FLAG_OVERLAY | dev->fbuf_out_flags;
+	a->base = (void *)dev->video_pbase;
+	a->fmt.width = dev->display_width;
+	a->fmt.height = dev->display_height;
+	if (vivid_fb_green_bits(dev) == 5)
+		a->fmt.pixelformat = V4L2_PIX_FMT_ARGB555;
+	else
+		a->fmt.pixelformat = V4L2_PIX_FMT_RGB565;
+	a->fmt.bytesperline = dev->display_byte_stride;
+	a->fmt.sizeimage = a->fmt.height * a->fmt.bytesperline;
+	a->fmt.field = V4L2_FIELD_NONE;
+	a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
+	a->fmt.priv = 0;
+	return 0;
+}
+
+int vivid_vid_out_s_fbuf(struct file *file, void *priv,
+				const struct v4l2_framebuffer *a)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	const unsigned chroma_flags = V4L2_FBUF_FLAG_CHROMAKEY |
+				      V4L2_FBUF_FLAG_SRC_CHROMAKEY;
+	const unsigned alpha_flags = V4L2_FBUF_FLAG_GLOBAL_ALPHA |
+				     V4L2_FBUF_FLAG_LOCAL_ALPHA |
+				     V4L2_FBUF_FLAG_LOCAL_INV_ALPHA;
+
+
+	if ((a->flags & chroma_flags) == chroma_flags)
+		return -EINVAL;
+	switch (a->flags & alpha_flags) {
+	case 0:
+	case V4L2_FBUF_FLAG_GLOBAL_ALPHA:
+	case V4L2_FBUF_FLAG_LOCAL_ALPHA:
+	case V4L2_FBUF_FLAG_LOCAL_INV_ALPHA:
+		break;
+	default:
+		return -EINVAL;
+	}
+	dev->fbuf_out_flags &= ~(chroma_flags | alpha_flags);
+	dev->fbuf_out_flags |= a->flags & (chroma_flags | alpha_flags);
+	return 0;
+}
+
+static const struct v4l2_audioout vivid_audio_outputs[] = {
+	{ 0, "Line-Out 1" },
+	{ 1, "Line-Out 2" },
+};
+
+int vidioc_enum_output(struct file *file, void *priv,
+				struct v4l2_output *out)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (out->index >= dev->num_outputs)
+		return -EINVAL;
+
+	out->type = V4L2_OUTPUT_TYPE_ANALOG;
+	switch (dev->output_type[out->index]) {
+	case SVID:
+		snprintf(out->name, sizeof(out->name), "S-Video %03u-%u",
+			 dev->inst, dev->output_name_counter[out->index]);
+		out->std = V4L2_STD_ALL;
+		if (dev->has_audio_outputs)
+			out->audioset = (1 << ARRAY_SIZE(vivid_audio_outputs)) - 1;
+		out->capabilities = V4L2_OUT_CAP_STD;
+		break;
+	case HDMI:
+		snprintf(out->name, sizeof(out->name), "HDMI %03u-%u",
+			 dev->inst, dev->output_name_counter[out->index]);
+		out->capabilities = V4L2_OUT_CAP_DV_TIMINGS;
+		break;
+	}
+	return 0;
+}
+
+int vidioc_g_output(struct file *file, void *priv, unsigned *o)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	*o = dev->output;
+	return 0;
+}
+
+int vidioc_s_output(struct file *file, void *priv, unsigned o)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (o >= dev->num_outputs)
+		return -EINVAL;
+
+	if (o == dev->output)
+		return 0;
+
+	if (vb2_is_busy(&dev->vb_vid_out_q) ||
+	    vb2_is_busy(&dev->vb_vbi_out_q) ||
+	    vb2_is_busy(&dev->vb_meta_out_q))
+		return -EBUSY;
+
+	dev->output = o;
+	dev->tv_audio_output = 0;
+	if (dev->output_type[o] == SVID)
+		dev->vid_out_dev.tvnorms = V4L2_STD_ALL;
+	else
+		dev->vid_out_dev.tvnorms = 0;
+
+	dev->vbi_out_dev.tvnorms = dev->vid_out_dev.tvnorms;
+	dev->meta_out_dev.tvnorms = dev->vid_out_dev.tvnorms;
+	vivid_update_format_out(dev);
+
+	return 0;
+}
+
+int vidioc_enumaudout(struct file *file, void *priv, struct v4l2_audioout *vout)
+{
+	if (vout->index >= ARRAY_SIZE(vivid_audio_outputs))
+		return -EINVAL;
+	*vout = vivid_audio_outputs[vout->index];
+	return 0;
+}
+
+int vidioc_g_audout(struct file *file, void *priv, struct v4l2_audioout *vout)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_svid_out(dev))
+		return -EINVAL;
+	*vout = vivid_audio_outputs[dev->tv_audio_output];
+	return 0;
+}
+
+int vidioc_s_audout(struct file *file, void *priv, const struct v4l2_audioout *vout)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_svid_out(dev))
+		return -EINVAL;
+	if (vout->index >= ARRAY_SIZE(vivid_audio_outputs))
+		return -EINVAL;
+	dev->tv_audio_output = vout->index;
+	return 0;
+}
+
+int vivid_vid_out_s_std(struct file *file, void *priv, v4l2_std_id id)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_svid_out(dev))
+		return -ENODATA;
+	if (dev->std_out == id)
+		return 0;
+	if (vb2_is_busy(&dev->vb_vid_out_q) || vb2_is_busy(&dev->vb_vbi_out_q))
+		return -EBUSY;
+	dev->std_out = id;
+	vivid_update_format_out(dev);
+	return 0;
+}
+
+static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
+{
+	struct v4l2_bt_timings *bt = &timings->bt;
+
+	if ((bt->standards & (V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF)) &&
+	    v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap, NULL, NULL))
+		return true;
+
+	return false;
+}
+
+int vivid_vid_out_s_dv_timings(struct file *file, void *priv,
+				    struct v4l2_dv_timings *timings)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	if (!vivid_is_hdmi_out(dev))
+		return -ENODATA;
+	if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
+				0, NULL, NULL) &&
+	    !valid_cvt_gtf_timings(timings))
+		return -EINVAL;
+	if (v4l2_match_dv_timings(timings, &dev->dv_timings_out, 0, true))
+		return 0;
+	if (vb2_is_busy(&dev->vb_vid_out_q))
+		return -EBUSY;
+	dev->dv_timings_out = *timings;
+	vivid_update_format_out(dev);
+	return 0;
+}
+
+int vivid_vid_out_g_parm(struct file *file, void *priv,
+			  struct v4l2_streamparm *parm)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (parm->type != (dev->multiplanar ?
+			   V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
+			   V4L2_BUF_TYPE_VIDEO_OUTPUT))
+		return -EINVAL;
+
+	parm->parm.output.capability   = V4L2_CAP_TIMEPERFRAME;
+	parm->parm.output.timeperframe = dev->timeperframe_vid_out;
+	parm->parm.output.writebuffers  = 1;
+
+	return 0;
+}
+
+int vidioc_subscribe_event(struct v4l2_fh *fh,
+			const struct v4l2_event_subscription *sub)
+{
+	switch (sub->type) {
+	case V4L2_EVENT_SOURCE_CHANGE:
+		if (fh->vdev->vfl_dir == VFL_DIR_RX)
+			return v4l2_src_change_event_subscribe(fh, sub);
+		break;
+	default:
+		return v4l2_ctrl_subscribe_event(fh, sub);
+	}
+	return -EINVAL;
+}
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-out.h b/drivers/media/test-drivers/vivid/vivid-vid-out.h
new file mode 100644
index 000000000..1d03891a5
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vid-out.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vivid-vid-out.h - video output support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _VIVID_VID_OUT_H_
+#define _VIVID_VID_OUT_H_
+
+extern const struct vb2_ops vivid_vid_out_qops;
+
+void vivid_update_format_out(struct vivid_dev *dev);
+
+int vivid_g_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f);
+int vivid_try_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f);
+int vivid_s_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_g_fmt_vid_out_mplane(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_s_fmt_vid_out_mplane(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_g_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_try_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_s_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f);
+int vivid_vid_out_g_selection(struct file *file, void *priv, struct v4l2_selection *sel);
+int vivid_vid_out_s_selection(struct file *file, void *priv, struct v4l2_selection *s);
+int vivid_vid_out_g_pixelaspect(struct file *file, void *priv, int type, struct v4l2_fract *f);
+int vidioc_enum_fmt_vid_out_overlay(struct file *file, void  *priv, struct v4l2_fmtdesc *f);
+int vidioc_g_fmt_vid_out_overlay(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_try_fmt_vid_out_overlay(struct file *file, void *priv, struct v4l2_format *f);
+int vidioc_s_fmt_vid_out_overlay(struct file *file, void *priv, struct v4l2_format *f);
+int vivid_vid_out_overlay(struct file *file, void *priv, unsigned i);
+int vivid_vid_out_g_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *a);
+int vivid_vid_out_s_fbuf(struct file *file, void *priv, const struct v4l2_framebuffer *a);
+int vidioc_enum_output(struct file *file, void *priv, struct v4l2_output *out);
+int vidioc_g_output(struct file *file, void *priv, unsigned *i);
+int vidioc_s_output(struct file *file, void *priv, unsigned i);
+int vidioc_enumaudout(struct file *file, void *priv, struct v4l2_audioout *vout);
+int vidioc_g_audout(struct file *file, void *priv, struct v4l2_audioout *vout);
+int vidioc_s_audout(struct file *file, void *priv, const struct v4l2_audioout *vout);
+int vivid_vid_out_s_std(struct file *file, void *priv, v4l2_std_id id);
+int vivid_vid_out_s_dv_timings(struct file *file, void *priv, struct v4l2_dv_timings *timings);
+int vivid_vid_out_g_parm(struct file *file, void *priv, struct v4l2_streamparm *parm);
+
+#endif