Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

Pull I3C updates from Alexandre Belloni:
 "A new driver this cycle, for the AMD AXI I3C controller.

  There are also new features such as IBI wakeup support, SETAASA device
  discovery and ACPI support for the the DAA methods, meaning we can now
  communicate with the SPD devices on DDR5 modules.

  New driver:
   - AMD AXI I3C master controller

  Subsystem:
   - I3C Common Command Code (CCC) handling improvements, especially
     around GET CCCs
   - SETAASA device discovery support
   - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
     well as I2C devices on I3C bus
   - IBI-based wakeup support

  Drivers:
   - dw: SETAASA support
   - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
     controller support, PIO queue management support for HCI v1.2
   - renesas: improve suspend to RAM support, add runtime PM support"

* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
  i3c: dw: reduce do_daa time if there's no client
  i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
  i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
  i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
  i3c: dw: rename "pclk" to "apb" to match dt-binding
  i3c: dw: make struct dw_i3c_cmd smaller
  i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
  i3c: renesas: Don't register devices when ENTDAA times out
  i3c: master: dw-i3c-master: fix OD timing for first broadcast
  i3c: mipi-i3c-hci: Advertise IBI wakeup capability
  i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
  i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
  i3c: master: Reject IBI requests from non-IBI-capable devices
  i3c: master: Add helper to query bus wakeup requirements
  i3c: master: Report wakeup events for IBIs
  i3c: master: Support IBI-based wakeup capability
  i3c: master: Fix potential UAF in i3c_device_match()
  i3c: master: Fix potential UAF in i3c_device_uevent()
  i3c: Make dev->desc locking assumptions explicit
  i3c: master: Fix use-after-free of master->this
  ...

1 files changed, 273 insertions, 0 deletions

diff --git a/drivers/misc/ibmasm/remote.c b/drivers/misc/ibmasm/remote.c
new file mode 100644
index 000000000..521531738
--- /dev/null
+++ b/drivers/misc/ibmasm/remote.c
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * IBM ASM Service Processor Device Driver
+ *
+ * Copyright (C) IBM Corporation, 2004
+ *
+ * Authors: Max Asböck <amax@us.ibm.com>
+ *          Vernon Mauery <vernux@us.ibm.com>
+ */
+
+/* Remote mouse and keyboard event handling functions */
+
+#include <linux/pci.h>
+#include "ibmasm.h"
+#include "remote.h"
+
+#define MOUSE_X_MAX	1600
+#define MOUSE_Y_MAX	1200
+
+static const unsigned short xlate_high[XLATE_SIZE] = {
+	[KEY_SYM_ENTER & 0xff] = KEY_ENTER,
+	[KEY_SYM_KPSLASH & 0xff] = KEY_KPSLASH,
+	[KEY_SYM_KPSTAR & 0xff] = KEY_KPASTERISK,
+	[KEY_SYM_KPMINUS & 0xff] = KEY_KPMINUS,
+	[KEY_SYM_KPDOT & 0xff] = KEY_KPDOT,
+	[KEY_SYM_KPPLUS & 0xff] = KEY_KPPLUS,
+	[KEY_SYM_KP0 & 0xff] = KEY_KP0,
+	[KEY_SYM_KP1 & 0xff] = KEY_KP1,
+	[KEY_SYM_KP2 & 0xff] = KEY_KP2, [KEY_SYM_KPDOWN & 0xff] = KEY_KP2,
+	[KEY_SYM_KP3 & 0xff] = KEY_KP3,
+	[KEY_SYM_KP4 & 0xff] = KEY_KP4, [KEY_SYM_KPLEFT & 0xff] = KEY_KP4,
+	[KEY_SYM_KP5 & 0xff] = KEY_KP5,
+	[KEY_SYM_KP6 & 0xff] = KEY_KP6, [KEY_SYM_KPRIGHT & 0xff] = KEY_KP6,
+	[KEY_SYM_KP7 & 0xff] = KEY_KP7,
+	[KEY_SYM_KP8 & 0xff] = KEY_KP8, [KEY_SYM_KPUP & 0xff] = KEY_KP8,
+	[KEY_SYM_KP9 & 0xff] = KEY_KP9,
+	[KEY_SYM_BK_SPC & 0xff] = KEY_BACKSPACE,
+	[KEY_SYM_TAB & 0xff] = KEY_TAB,
+	[KEY_SYM_CTRL & 0xff] = KEY_LEFTCTRL,
+	[KEY_SYM_ALT & 0xff] = KEY_LEFTALT,
+	[KEY_SYM_INSERT & 0xff] = KEY_INSERT,
+	[KEY_SYM_DELETE & 0xff] = KEY_DELETE,
+	[KEY_SYM_SHIFT & 0xff] = KEY_LEFTSHIFT,
+	[KEY_SYM_UARROW & 0xff] = KEY_UP,
+	[KEY_SYM_DARROW & 0xff] = KEY_DOWN,
+	[KEY_SYM_LARROW & 0xff] = KEY_LEFT,
+	[KEY_SYM_RARROW & 0xff] = KEY_RIGHT,
+	[KEY_SYM_ESCAPE & 0xff] = KEY_ESC,
+        [KEY_SYM_PAGEUP & 0xff] = KEY_PAGEUP,
+        [KEY_SYM_PAGEDOWN & 0xff] = KEY_PAGEDOWN,
+        [KEY_SYM_HOME & 0xff] = KEY_HOME,
+        [KEY_SYM_END & 0xff] = KEY_END,
+	[KEY_SYM_F1 & 0xff] = KEY_F1,
+	[KEY_SYM_F2 & 0xff] = KEY_F2,
+	[KEY_SYM_F3 & 0xff] = KEY_F3,
+	[KEY_SYM_F4 & 0xff] = KEY_F4,
+	[KEY_SYM_F5 & 0xff] = KEY_F5,
+	[KEY_SYM_F6 & 0xff] = KEY_F6,
+	[KEY_SYM_F7 & 0xff] = KEY_F7,
+	[KEY_SYM_F8 & 0xff] = KEY_F8,
+	[KEY_SYM_F9 & 0xff] = KEY_F9,
+	[KEY_SYM_F10 & 0xff] = KEY_F10,
+	[KEY_SYM_F11 & 0xff] = KEY_F11,
+	[KEY_SYM_F12 & 0xff] = KEY_F12,
+	[KEY_SYM_CAP_LOCK & 0xff] = KEY_CAPSLOCK,
+	[KEY_SYM_NUM_LOCK & 0xff] = KEY_NUMLOCK,
+	[KEY_SYM_SCR_LOCK & 0xff] = KEY_SCROLLLOCK,
+};
+
+static const unsigned short xlate[XLATE_SIZE] = {
+	[NO_KEYCODE] = KEY_RESERVED,
+	[KEY_SYM_SPACE] = KEY_SPACE,
+	[KEY_SYM_TILDE] = KEY_GRAVE,        [KEY_SYM_BKTIC] = KEY_GRAVE,
+	[KEY_SYM_ONE] = KEY_1,              [KEY_SYM_BANG] = KEY_1,
+	[KEY_SYM_TWO] = KEY_2,              [KEY_SYM_AT] = KEY_2,
+	[KEY_SYM_THREE] = KEY_3,            [KEY_SYM_POUND] = KEY_3,
+	[KEY_SYM_FOUR] = KEY_4,             [KEY_SYM_DOLLAR] = KEY_4,
+	[KEY_SYM_FIVE] = KEY_5,             [KEY_SYM_PERCENT] = KEY_5,
+	[KEY_SYM_SIX] = KEY_6,              [KEY_SYM_CARAT] = KEY_6,
+	[KEY_SYM_SEVEN] = KEY_7,            [KEY_SYM_AMPER] = KEY_7,
+	[KEY_SYM_EIGHT] = KEY_8,            [KEY_SYM_STAR] = KEY_8,
+	[KEY_SYM_NINE] = KEY_9,             [KEY_SYM_LPAREN] = KEY_9,
+	[KEY_SYM_ZERO] = KEY_0,             [KEY_SYM_RPAREN] = KEY_0,
+	[KEY_SYM_MINUS] = KEY_MINUS,        [KEY_SYM_USCORE] = KEY_MINUS,
+	[KEY_SYM_EQUAL] = KEY_EQUAL,        [KEY_SYM_PLUS] = KEY_EQUAL,
+	[KEY_SYM_LBRKT] = KEY_LEFTBRACE,    [KEY_SYM_LCURLY] = KEY_LEFTBRACE,
+	[KEY_SYM_RBRKT] = KEY_RIGHTBRACE,   [KEY_SYM_RCURLY] = KEY_RIGHTBRACE,
+	[KEY_SYM_SLASH] = KEY_BACKSLASH,    [KEY_SYM_PIPE] = KEY_BACKSLASH,
+	[KEY_SYM_TIC] = KEY_APOSTROPHE,     [KEY_SYM_QUOTE] = KEY_APOSTROPHE,
+	[KEY_SYM_SEMIC] = KEY_SEMICOLON,    [KEY_SYM_COLON] = KEY_SEMICOLON,
+	[KEY_SYM_COMMA] = KEY_COMMA,        [KEY_SYM_LT] = KEY_COMMA,
+	[KEY_SYM_PERIOD] = KEY_DOT,         [KEY_SYM_GT] = KEY_DOT,
+	[KEY_SYM_BSLASH] = KEY_SLASH,       [KEY_SYM_QMARK] = KEY_SLASH,
+	[KEY_SYM_A] = KEY_A,                [KEY_SYM_a] = KEY_A,
+	[KEY_SYM_B] = KEY_B,                [KEY_SYM_b] = KEY_B,
+	[KEY_SYM_C] = KEY_C,                [KEY_SYM_c] = KEY_C,
+	[KEY_SYM_D] = KEY_D,                [KEY_SYM_d] = KEY_D,
+	[KEY_SYM_E] = KEY_E,                [KEY_SYM_e] = KEY_E,
+	[KEY_SYM_F] = KEY_F,                [KEY_SYM_f] = KEY_F,
+	[KEY_SYM_G] = KEY_G,                [KEY_SYM_g] = KEY_G,
+	[KEY_SYM_H] = KEY_H,                [KEY_SYM_h] = KEY_H,
+	[KEY_SYM_I] = KEY_I,                [KEY_SYM_i] = KEY_I,
+	[KEY_SYM_J] = KEY_J,                [KEY_SYM_j] = KEY_J,
+	[KEY_SYM_K] = KEY_K,                [KEY_SYM_k] = KEY_K,
+	[KEY_SYM_L] = KEY_L,                [KEY_SYM_l] = KEY_L,
+	[KEY_SYM_M] = KEY_M,                [KEY_SYM_m] = KEY_M,
+	[KEY_SYM_N] = KEY_N,                [KEY_SYM_n] = KEY_N,
+	[KEY_SYM_O] = KEY_O,                [KEY_SYM_o] = KEY_O,
+	[KEY_SYM_P] = KEY_P,                [KEY_SYM_p] = KEY_P,
+	[KEY_SYM_Q] = KEY_Q,                [KEY_SYM_q] = KEY_Q,
+	[KEY_SYM_R] = KEY_R,                [KEY_SYM_r] = KEY_R,
+	[KEY_SYM_S] = KEY_S,                [KEY_SYM_s] = KEY_S,
+	[KEY_SYM_T] = KEY_T,                [KEY_SYM_t] = KEY_T,
+	[KEY_SYM_U] = KEY_U,                [KEY_SYM_u] = KEY_U,
+	[KEY_SYM_V] = KEY_V,                [KEY_SYM_v] = KEY_V,
+	[KEY_SYM_W] = KEY_W,                [KEY_SYM_w] = KEY_W,
+	[KEY_SYM_X] = KEY_X,                [KEY_SYM_x] = KEY_X,
+	[KEY_SYM_Y] = KEY_Y,                [KEY_SYM_y] = KEY_Y,
+	[KEY_SYM_Z] = KEY_Z,                [KEY_SYM_z] = KEY_Z,
+};
+
+static void print_input(struct remote_input *input)
+{
+	if (input->type == INPUT_TYPE_MOUSE) {
+		unsigned char buttons = input->mouse_buttons;
+		dbg("remote mouse movement: (x,y)=(%d,%d)%s%s%s%s\n",
+			input->data.mouse.x, input->data.mouse.y,
+			(buttons) ? " -- buttons:" : "",
+			(buttons & REMOTE_BUTTON_LEFT) ? "left " : "",
+			(buttons & REMOTE_BUTTON_MIDDLE) ? "middle " : "",
+			(buttons & REMOTE_BUTTON_RIGHT) ? "right" : ""
+		      );
+	} else {
+		dbg("remote keypress (code, flag, down):"
+			   "%d (0x%x) [0x%x] [0x%x]\n",
+				input->data.keyboard.key_code,
+				input->data.keyboard.key_code,
+				input->data.keyboard.key_flag,
+				input->data.keyboard.key_down
+		      );
+	}
+}
+
+static void send_mouse_event(struct input_dev *dev, struct remote_input *input)
+{
+	unsigned char buttons = input->mouse_buttons;
+
+	input_report_abs(dev, ABS_X, input->data.mouse.x);
+	input_report_abs(dev, ABS_Y, input->data.mouse.y);
+	input_report_key(dev, BTN_LEFT, buttons & REMOTE_BUTTON_LEFT);
+	input_report_key(dev, BTN_MIDDLE, buttons & REMOTE_BUTTON_MIDDLE);
+	input_report_key(dev, BTN_RIGHT, buttons & REMOTE_BUTTON_RIGHT);
+	input_sync(dev);
+}
+
+static void send_keyboard_event(struct input_dev *dev,
+		struct remote_input *input)
+{
+	unsigned int key;
+	unsigned short code = input->data.keyboard.key_code;
+
+	if (code & 0xff00)
+		key = xlate_high[code & 0xff];
+	else
+		key = xlate[code];
+	input_report_key(dev, key, input->data.keyboard.key_down);
+	input_sync(dev);
+}
+
+void ibmasm_handle_mouse_interrupt(struct service_processor *sp)
+{
+	unsigned long reader;
+	unsigned long writer;
+	struct remote_input input;
+
+	reader = get_queue_reader(sp);
+	writer = get_queue_writer(sp);
+
+	while (reader != writer) {
+		if (reader >= REMOTE_QUEUE_SIZE || writer >= REMOTE_QUEUE_SIZE) {
+			set_queue_reader(sp, 0);
+			break;
+		}
+
+		memcpy_fromio(&input, get_queue_entry(sp, reader),
+				sizeof(struct remote_input));
+
+		print_input(&input);
+		if (input.type == INPUT_TYPE_MOUSE) {
+			send_mouse_event(sp->remote.mouse_dev, &input);
+		} else if (input.type == INPUT_TYPE_KEYBOARD) {
+			send_keyboard_event(sp->remote.keybd_dev, &input);
+		} else
+			break;
+
+		reader = advance_queue_reader(sp, reader);
+		writer = get_queue_writer(sp);
+	}
+}
+
+int ibmasm_init_remote_input_dev(struct service_processor *sp)
+{
+	/* set up the mouse input device */
+	struct input_dev *mouse_dev, *keybd_dev;
+	struct pci_dev *pdev = to_pci_dev(sp->dev);
+	int error = -ENOMEM;
+	int i;
+
+	sp->remote.mouse_dev = mouse_dev = input_allocate_device();
+	sp->remote.keybd_dev = keybd_dev = input_allocate_device();
+
+	if (!mouse_dev || !keybd_dev)
+		goto err_free_devices;
+
+	mouse_dev->id.bustype = BUS_PCI;
+	mouse_dev->id.vendor = pdev->vendor;
+	mouse_dev->id.product = pdev->device;
+	mouse_dev->id.version = 1;
+	mouse_dev->dev.parent = sp->dev;
+	mouse_dev->evbit[0]  = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+	mouse_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+		BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
+	set_bit(BTN_TOUCH, mouse_dev->keybit);
+	mouse_dev->name = "ibmasm RSA I remote mouse";
+	input_set_abs_params(mouse_dev, ABS_X, 0, MOUSE_X_MAX, 0, 0);
+	input_set_abs_params(mouse_dev, ABS_Y, 0, MOUSE_Y_MAX, 0, 0);
+
+	keybd_dev->id.bustype = BUS_PCI;
+	keybd_dev->id.vendor = pdev->vendor;
+	keybd_dev->id.product = pdev->device;
+	keybd_dev->id.version = 2;
+	keybd_dev->dev.parent = sp->dev;
+	keybd_dev->evbit[0]  = BIT_MASK(EV_KEY);
+	keybd_dev->name = "ibmasm RSA I remote keyboard";
+
+	for (i = 0; i < XLATE_SIZE; i++) {
+		if (xlate_high[i])
+			set_bit(xlate_high[i], keybd_dev->keybit);
+		if (xlate[i])
+			set_bit(xlate[i], keybd_dev->keybit);
+	}
+
+	error = input_register_device(mouse_dev);
+	if (error)
+		goto err_free_devices;
+
+	error = input_register_device(keybd_dev);
+	if (error)
+		goto err_unregister_mouse_dev;
+
+	enable_mouse_interrupts(sp);
+
+	printk(KERN_INFO "ibmasm remote responding to events on RSA card %d\n", sp->number);
+
+	return 0;
+
+ err_unregister_mouse_dev:
+	input_unregister_device(mouse_dev);
+	mouse_dev = NULL; /* so we don't try to free it again below */
+ err_free_devices:
+	input_free_device(mouse_dev);
+	input_free_device(keybd_dev);
+
+	return error;
+}
+
+void ibmasm_free_remote_input_dev(struct service_processor *sp)
+{
+	disable_mouse_interrupts(sp);
+	input_unregister_device(sp->remote.mouse_dev);
+	input_unregister_device(sp->remote.keybd_dev);
+}
+