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, 491 insertions, 0 deletions

diff --git a/drivers/hid/hid-bigbenff.c b/drivers/hid/hid-bigbenff.c
new file mode 100644
index 000000000..3c87317cc
--- /dev/null
+++ b/drivers/hid/hid-bigbenff.c
@@ -0,0 +1,491 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ *  LED & force feedback support for BigBen Interactive
+ *
+ *  0x146b:0x0902 "Bigben Interactive Bigben Game Pad"
+ *  "Kid-friendly Wired Controller" PS3OFMINIPAD SONY
+ *  sold for use with the PS3
+ *
+ *  Copyright (c) 2018 Hanno Zulla <kontakt@hanno.de>
+ */
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/leds.h>
+#include <linux/hid.h>
+
+#include "hid-ids.h"
+
+
+/*
+ * The original descriptor for 0x146b:0x0902
+ *
+ *   0x05, 0x01,        // Usage Page (Generic Desktop Ctrls)
+ *   0x09, 0x05,        // Usage (Game Pad)
+ *   0xA1, 0x01,        // Collection (Application)
+ *   0x15, 0x00,        //   Logical Minimum (0)
+ *   0x25, 0x01,        //   Logical Maximum (1)
+ *   0x35, 0x00,        //   Physical Minimum (0)
+ *   0x45, 0x01,        //   Physical Maximum (1)
+ *   0x75, 0x01,        //   Report Size (1)
+ *   0x95, 0x0D,        //   Report Count (13)
+ *   0x05, 0x09,        //   Usage Page (Button)
+ *   0x19, 0x01,        //   Usage Minimum (0x01)
+ *   0x29, 0x0D,        //   Usage Maximum (0x0D)
+ *   0x81, 0x02,        //   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
+ *   0x95, 0x03,        //   Report Count (3)
+ *   0x81, 0x01,        //   Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
+ *   0x05, 0x01,        //   Usage Page (Generic Desktop Ctrls)
+ *   0x25, 0x07,        //   Logical Maximum (7)
+ *   0x46, 0x3B, 0x01,  //   Physical Maximum (315)
+ *   0x75, 0x04,        //   Report Size (4)
+ *   0x95, 0x01,        //   Report Count (1)
+ *   0x65, 0x14,        //   Unit (System: English Rotation, Length: Centimeter)
+ *   0x09, 0x39,        //   Usage (Hat switch)
+ *   0x81, 0x42,        //   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,Null State)
+ *   0x65, 0x00,        //   Unit (None)
+ *   0x95, 0x01,        //   Report Count (1)
+ *   0x81, 0x01,        //   Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
+ *   0x26, 0xFF, 0x00,  //   Logical Maximum (255)
+ *   0x46, 0xFF, 0x00,  //   Physical Maximum (255)
+ *   0x09, 0x30,        //   Usage (X)
+ *   0x09, 0x31,        //   Usage (Y)
+ *   0x09, 0x32,        //   Usage (Z)
+ *   0x09, 0x35,        //   Usage (Rz)
+ *   0x75, 0x08,        //   Report Size (8)
+ *   0x95, 0x04,        //   Report Count (4)
+ *   0x81, 0x02,        //   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
+ *   0x06, 0x00, 0xFF,  //   Usage Page (Vendor Defined 0xFF00)
+ *   0x09, 0x20,        //   Usage (0x20)
+ *   0x09, 0x21,        //   Usage (0x21)
+ *   0x09, 0x22,        //   Usage (0x22)
+ *   0x09, 0x23,        //   Usage (0x23)
+ *   0x09, 0x24,        //   Usage (0x24)
+ *   0x09, 0x25,        //   Usage (0x25)
+ *   0x09, 0x26,        //   Usage (0x26)
+ *   0x09, 0x27,        //   Usage (0x27)
+ *   0x09, 0x28,        //   Usage (0x28)
+ *   0x09, 0x29,        //   Usage (0x29)
+ *   0x09, 0x2A,        //   Usage (0x2A)
+ *   0x09, 0x2B,        //   Usage (0x2B)
+ *   0x95, 0x0C,        //   Report Count (12)
+ *   0x81, 0x02,        //   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
+ *   0x0A, 0x21, 0x26,  //   Usage (0x2621)
+ *   0x95, 0x08,        //   Report Count (8)
+ *   0xB1, 0x02,        //   Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
+ *   0x0A, 0x21, 0x26,  //   Usage (0x2621)
+ *   0x91, 0x02,        //   Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
+ *   0x26, 0xFF, 0x03,  //   Logical Maximum (1023)
+ *   0x46, 0xFF, 0x03,  //   Physical Maximum (1023)
+ *   0x09, 0x2C,        //   Usage (0x2C)
+ *   0x09, 0x2D,        //   Usage (0x2D)
+ *   0x09, 0x2E,        //   Usage (0x2E)
+ *   0x09, 0x2F,        //   Usage (0x2F)
+ *   0x75, 0x10,        //   Report Size (16)
+ *   0x95, 0x04,        //   Report Count (4)
+ *   0x81, 0x02,        //   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
+ *   0xC0,              // End Collection
+ */
+
+#define PID0902_RDESC_ORIG_SIZE 137
+
+/*
+ * The fixed descriptor for 0x146b:0x0902
+ *
+ * - map buttons according to gamepad.rst
+ * - assign right stick from Z/Rz to Rx/Ry
+ * - map previously unused analog trigger data to Z/RZ
+ * - simplify feature and output descriptor
+ */
+static const __u8 pid0902_rdesc_fixed[] = {
+	0x05, 0x01,        /* Usage Page (Generic Desktop Ctrls) */
+	0x09, 0x05,        /* Usage (Game Pad) */
+	0xA1, 0x01,        /* Collection (Application) */
+	0x15, 0x00,        /*   Logical Minimum (0) */
+	0x25, 0x01,        /*   Logical Maximum (1) */
+	0x35, 0x00,        /*   Physical Minimum (0) */
+	0x45, 0x01,        /*   Physical Maximum (1) */
+	0x75, 0x01,        /*   Report Size (1) */
+	0x95, 0x0D,        /*   Report Count (13) */
+	0x05, 0x09,        /*   Usage Page (Button) */
+	0x09, 0x05,        /*   Usage (BTN_WEST) */
+	0x09, 0x01,        /*   Usage (BTN_SOUTH) */
+	0x09, 0x02,        /*   Usage (BTN_EAST) */
+	0x09, 0x04,        /*   Usage (BTN_NORTH) */
+	0x09, 0x07,        /*   Usage (BTN_TL) */
+	0x09, 0x08,        /*   Usage (BTN_TR) */
+	0x09, 0x09,        /*   Usage (BTN_TL2) */
+	0x09, 0x0A,        /*   Usage (BTN_TR2) */
+	0x09, 0x0B,        /*   Usage (BTN_SELECT) */
+	0x09, 0x0C,        /*   Usage (BTN_START) */
+	0x09, 0x0E,        /*   Usage (BTN_THUMBL) */
+	0x09, 0x0F,        /*   Usage (BTN_THUMBR) */
+	0x09, 0x0D,        /*   Usage (BTN_MODE) */
+	0x81, 0x02,        /*   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
+	0x75, 0x01,        /*   Report Size (1) */
+	0x95, 0x03,        /*   Report Count (3) */
+	0x81, 0x01,        /*   Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
+	0x05, 0x01,        /*   Usage Page (Generic Desktop Ctrls) */
+	0x25, 0x07,        /*   Logical Maximum (7) */
+	0x46, 0x3B, 0x01,  /*   Physical Maximum (315) */
+	0x75, 0x04,        /*   Report Size (4) */
+	0x95, 0x01,        /*   Report Count (1) */
+	0x65, 0x14,        /*   Unit (System: English Rotation, Length: Centimeter) */
+	0x09, 0x39,        /*   Usage (Hat switch) */
+	0x81, 0x42,        /*   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,Null State) */
+	0x65, 0x00,        /*   Unit (None) */
+	0x95, 0x01,        /*   Report Count (1) */
+	0x81, 0x01,        /*   Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
+	0x26, 0xFF, 0x00,  /*   Logical Maximum (255) */
+	0x46, 0xFF, 0x00,  /*   Physical Maximum (255) */
+	0x09, 0x30,        /*   Usage (X) */
+	0x09, 0x31,        /*   Usage (Y) */
+	0x09, 0x33,        /*   Usage (Rx) */
+	0x09, 0x34,        /*   Usage (Ry) */
+	0x75, 0x08,        /*   Report Size (8) */
+	0x95, 0x04,        /*   Report Count (4) */
+	0x81, 0x02,        /*   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
+	0x95, 0x0A,        /*   Report Count (10) */
+	0x81, 0x01,        /*   Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
+	0x05, 0x01,        /*   Usage Page (Generic Desktop Ctrls) */
+	0x26, 0xFF, 0x00,  /*   Logical Maximum (255) */
+	0x46, 0xFF, 0x00,  /*   Physical Maximum (255) */
+	0x09, 0x32,        /*   Usage (Z) */
+	0x09, 0x35,        /*   Usage (Rz) */
+	0x95, 0x02,        /*   Report Count (2) */
+	0x81, 0x02,        /*   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
+	0x95, 0x08,        /*   Report Count (8) */
+	0x81, 0x01,        /*   Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
+	0x06, 0x00, 0xFF,  /*   Usage Page (Vendor Defined 0xFF00) */
+	0xB1, 0x02,        /*   Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) */
+	0x0A, 0x21, 0x26,  /*   Usage (0x2621) */
+	0x95, 0x08,        /*   Report Count (8) */
+	0x91, 0x02,        /*   Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) */
+	0x0A, 0x21, 0x26,  /*   Usage (0x2621) */
+	0x95, 0x08,        /*   Report Count (8) */
+	0x81, 0x02,        /*   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
+	0xC0,              /* End Collection */
+};
+
+#define NUM_LEDS 4
+
+struct bigben_device {
+	struct hid_device *hid;
+	struct hid_report *report;
+	spinlock_t lock;
+	bool removed;
+	u8 led_state;         /* LED1 = 1 .. LED4 = 8 */
+	u8 right_motor_on;    /* right motor off/on 0/1 */
+	u8 left_motor_force;  /* left motor force 0-255 */
+	struct led_classdev *leds[NUM_LEDS];
+	bool work_led;
+	bool work_ff;
+	struct work_struct worker;
+};
+
+static inline void bigben_schedule_work(struct bigben_device *bigben)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&bigben->lock, flags);
+	if (!bigben->removed)
+		schedule_work(&bigben->worker);
+	spin_unlock_irqrestore(&bigben->lock, flags);
+}
+
+static void bigben_worker(struct work_struct *work)
+{
+	struct bigben_device *bigben = container_of(work,
+		struct bigben_device, worker);
+	struct hid_field *report_field = bigben->report->field[0];
+	bool do_work_led = false;
+	bool do_work_ff = false;
+	u8 *buf;
+	u32 len;
+	unsigned long flags;
+
+	buf = hid_alloc_report_buf(bigben->report, GFP_KERNEL);
+	if (!buf)
+		return;
+
+	len = hid_report_len(bigben->report);
+
+	/* LED work */
+	spin_lock_irqsave(&bigben->lock, flags);
+
+	if (bigben->work_led) {
+		bigben->work_led = false;
+		do_work_led = true;
+		report_field->value[0] = 0x01; /* 1 = led message */
+		report_field->value[1] = 0x08; /* reserved value, always 8 */
+		report_field->value[2] = bigben->led_state;
+		report_field->value[3] = 0x00; /* padding */
+		report_field->value[4] = 0x00; /* padding */
+		report_field->value[5] = 0x00; /* padding */
+		report_field->value[6] = 0x00; /* padding */
+		report_field->value[7] = 0x00; /* padding */
+		hid_output_report(bigben->report, buf);
+	}
+
+	spin_unlock_irqrestore(&bigben->lock, flags);
+
+	if (do_work_led) {
+		hid_hw_raw_request(bigben->hid, bigben->report->id, buf, len,
+				   bigben->report->type, HID_REQ_SET_REPORT);
+	}
+
+	/* FF work */
+	spin_lock_irqsave(&bigben->lock, flags);
+
+	if (bigben->work_ff) {
+		bigben->work_ff = false;
+		do_work_ff = true;
+		report_field->value[0] = 0x02; /* 2 = rumble effect message */
+		report_field->value[1] = 0x08; /* reserved value, always 8 */
+		report_field->value[2] = bigben->right_motor_on;
+		report_field->value[3] = bigben->left_motor_force;
+		report_field->value[4] = 0xff; /* duration 0-254 (255 = nonstop) */
+		report_field->value[5] = 0x00; /* padding */
+		report_field->value[6] = 0x00; /* padding */
+		report_field->value[7] = 0x00; /* padding */
+		hid_output_report(bigben->report, buf);
+	}
+
+	spin_unlock_irqrestore(&bigben->lock, flags);
+
+	if (do_work_ff) {
+		hid_hw_raw_request(bigben->hid, bigben->report->id, buf, len,
+				   bigben->report->type, HID_REQ_SET_REPORT);
+	}
+
+	kfree(buf);
+}
+
+static int hid_bigben_play_effect(struct input_dev *dev, void *data,
+			 struct ff_effect *effect)
+{
+	struct hid_device *hid = input_get_drvdata(dev);
+	struct bigben_device *bigben = hid_get_drvdata(hid);
+	u8 right_motor_on;
+	u8 left_motor_force;
+	unsigned long flags;
+
+	if (!bigben) {
+		hid_err(hid, "no device data\n");
+		return 0;
+	}
+
+	if (effect->type != FF_RUMBLE)
+		return 0;
+
+	right_motor_on   = effect->u.rumble.weak_magnitude ? 1 : 0;
+	left_motor_force = effect->u.rumble.strong_magnitude / 256;
+
+	if (right_motor_on != bigben->right_motor_on ||
+			left_motor_force != bigben->left_motor_force) {
+		spin_lock_irqsave(&bigben->lock, flags);
+		bigben->right_motor_on   = right_motor_on;
+		bigben->left_motor_force = left_motor_force;
+		bigben->work_ff = true;
+		spin_unlock_irqrestore(&bigben->lock, flags);
+
+		bigben_schedule_work(bigben);
+	}
+
+	return 0;
+}
+
+static void bigben_set_led(struct led_classdev *led,
+	enum led_brightness value)
+{
+	struct device *dev = led->dev->parent;
+	struct hid_device *hid = to_hid_device(dev);
+	struct bigben_device *bigben = hid_get_drvdata(hid);
+	int n;
+	bool work;
+	unsigned long flags;
+
+	if (!bigben) {
+		hid_err(hid, "no device data\n");
+		return;
+	}
+
+	for (n = 0; n < NUM_LEDS; n++) {
+		if (led == bigben->leds[n]) {
+			spin_lock_irqsave(&bigben->lock, flags);
+			if (value == LED_OFF) {
+				work = (bigben->led_state & BIT(n));
+				bigben->led_state &= ~BIT(n);
+			} else {
+				work = !(bigben->led_state & BIT(n));
+				bigben->led_state |= BIT(n);
+			}
+			spin_unlock_irqrestore(&bigben->lock, flags);
+
+			if (work) {
+				bigben->work_led = true;
+				bigben_schedule_work(bigben);
+			}
+			return;
+		}
+	}
+}
+
+static enum led_brightness bigben_get_led(struct led_classdev *led)
+{
+	struct device *dev = led->dev->parent;
+	struct hid_device *hid = to_hid_device(dev);
+	struct bigben_device *bigben = hid_get_drvdata(hid);
+	int n;
+
+	if (!bigben) {
+		hid_err(hid, "no device data\n");
+		return LED_OFF;
+	}
+
+	for (n = 0; n < NUM_LEDS; n++) {
+		if (led == bigben->leds[n])
+			return (bigben->led_state & BIT(n)) ? LED_ON : LED_OFF;
+	}
+
+	return LED_OFF;
+}
+
+static void bigben_remove(struct hid_device *hid)
+{
+	struct bigben_device *bigben = hid_get_drvdata(hid);
+	unsigned long flags;
+
+	spin_lock_irqsave(&bigben->lock, flags);
+	bigben->removed = true;
+	spin_unlock_irqrestore(&bigben->lock, flags);
+
+	cancel_work_sync(&bigben->worker);
+	hid_hw_stop(hid);
+}
+
+static int bigben_input_configured(struct hid_device *hid, struct hid_input *hidinput)
+{
+	struct bigben_device *bigben = hid_get_drvdata(hid);
+	struct input_dev *input_dev = hidinput->input;
+	struct led_classdev *led;
+	char *name;
+	size_t name_sz;
+	int n, error;
+
+	if (!list_is_first(&hidinput->list, &hid->inputs))
+		return 0;
+
+	bigben->report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 8);
+	if (!bigben->report) {
+		hid_err(hid, "no output report found\n");
+		return -ENODEV;
+	}
+
+	set_bit(FF_RUMBLE, input_dev->ffbit);
+
+	error = input_ff_create_memless(input_dev, NULL, hid_bigben_play_effect);
+	if (error)
+		return error;
+
+	name_sz = strlen(dev_name(&hid->dev)) + strlen(":red:bigben#") + 1;
+
+	for (n = 0; n < NUM_LEDS; n++) {
+		led = devm_kzalloc(
+			&hid->dev,
+			sizeof(struct led_classdev) + name_sz,
+			GFP_KERNEL
+		);
+		if (!led)
+			return -ENOMEM;
+
+		name = (void *)(&led[1]);
+		snprintf(name, name_sz,
+			"%s:red:bigben%d",
+			dev_name(&hid->dev), n + 1
+		);
+		led->name = name;
+		led->brightness = (n == 0) ? LED_ON : LED_OFF;
+		led->max_brightness = 1;
+		led->brightness_get = bigben_get_led;
+		led->brightness_set = bigben_set_led;
+		bigben->leds[n] = led;
+		error = devm_led_classdev_register(&hid->dev, led);
+		if (error)
+			return error;
+	}
+
+	/* initial state: LED1 is on, no rumble effect */
+	bigben->led_state = BIT(0);
+	bigben->right_motor_on = 0;
+	bigben->left_motor_force = 0;
+	bigben->work_led = true;
+	bigben->work_ff = true;
+	bigben_schedule_work(bigben);
+
+	hid_info(hid, "LED and force feedback support for BigBen gamepad\n");
+
+	return 0;
+}
+
+static int bigben_probe(struct hid_device *hid, const struct hid_device_id *id)
+{
+	struct bigben_device *bigben;
+	int error;
+
+	bigben = devm_kzalloc(&hid->dev, sizeof(*bigben), GFP_KERNEL);
+	if (!bigben)
+		return -ENOMEM;
+
+	hid_set_drvdata(hid, bigben);
+	bigben->hid = hid;
+	bigben->removed = false;
+	INIT_WORK(&bigben->worker, bigben_worker);
+	spin_lock_init(&bigben->lock);
+
+	error = hid_parse(hid);
+	if (error) {
+		hid_err(hid, "parse failed\n");
+		return error;
+	}
+
+	error = hid_hw_start(hid, HID_CONNECT_DEFAULT);
+	if (error) {
+		hid_err(hid, "hw start failed\n");
+		return error;
+	}
+
+	return 0;
+}
+
+static const __u8 *bigben_report_fixup(struct hid_device *hid, __u8 *rdesc,
+	unsigned int *rsize)
+{
+	if (*rsize == PID0902_RDESC_ORIG_SIZE) {
+		*rsize = sizeof(pid0902_rdesc_fixed);
+		return pid0902_rdesc_fixed;
+	} else
+		hid_warn(hid, "unexpected rdesc, please submit for review\n");
+	return rdesc;
+}
+
+static const struct hid_device_id bigben_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BIGBEN, USB_DEVICE_ID_BIGBEN_PS3OFMINIPAD) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, bigben_devices);
+
+static struct hid_driver bigben_driver = {
+	.name = "bigben",
+	.id_table = bigben_devices,
+	.probe = bigben_probe,
+	.report_fixup = bigben_report_fixup,
+	.remove = bigben_remove,
+	.input_configured = bigben_input_configured,
+};
+module_hid_driver(bigben_driver);
+
+MODULE_DESCRIPTION("LED & force feedback support for BigBen Interactive");
+MODULE_LICENSE("GPL");