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Commit 510c8b7c authored by Roderick Colenbrander's avatar Roderick Colenbrander Committed by Jiri Kosina
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HID: sony: Expose DS3 motion sensors through separate device 



This patch adds a separate evdev node for the DS3 its motion
sensors. We only expose the accelerometers as the gyroscope
is extremely difficult to manage and behavior varies a lot
between hardware revisions.

Signed-off-by: default avatarRoderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 80ecc48c

drivers/hid/hid-sony.c

+105 −25
Original line number Diff line number Diff line
@@ -547,12 +547,15 @@ struct motion_output_report_02 { 
#define DS4_INPUT_REPORT_BATTERY_OFFSET  30

#define DS4_INPUT_REPORT_TOUCHPAD_OFFSET 33



#define DS4_SENSOR_SUFFIX " Motion Sensors"

#define SENSOR_SUFFIX " Motion Sensors"

#define DS4_TOUCHPAD_SUFFIX " Touchpad"



#define DS4_GYRO_RES_PER_DEG_S 1024

#define DS4_ACC_RES_PER_G      8192



#define SIXAXIS_INPUT_REPORT_ACC_X_OFFSET 41

#define SIXAXIS_ACC_RES_PER_G 113



static DEFINE_SPINLOCK(sony_dev_list_lock);

static LIST_HEAD(sony_device_list);

static DEFINE_IDA(sony_device_id_allocator);
@@ -841,6 +844,23 @@ static void sixaxis_parse_report(struct sony_sc *sc, u8 *rd, int size) 
	sc->battery_capacity = battery_capacity;

	sc->battery_charging = battery_charging;

	spin_unlock_irqrestore(&sc->lock, flags);



	if (sc->quirks & SIXAXIS_CONTROLLER) {

		int val;



		offset = SIXAXIS_INPUT_REPORT_ACC_X_OFFSET;

		val = ((rd[offset+1] << 8) | rd[offset]) - 511;

		input_report_abs(sc->sensor_dev, ABS_X, val);



		/* Y and Z are swapped and inversed */

		val = 511 - ((rd[offset+5] << 8) | rd[offset+4]);

		input_report_abs(sc->sensor_dev, ABS_Y, val);



		val = 511 - ((rd[offset+3] << 8) | rd[offset+2]);

		input_report_abs(sc->sensor_dev, ABS_Z, val);



		input_sync(sc->sensor_dev);

	}

}



static void dualshock4_parse_report(struct sony_sc *sc, u8 *rd, int size)
@@ -1285,15 +1305,29 @@ static int sony_register_sensors(struct sony_sc *sc) 
	/* Append a suffix to the controller name as there are various

	 * DS4 compatible non-Sony devices with different names.

	 */

	name_sz = strlen(sc->hdev->name) + sizeof(DS4_SENSOR_SUFFIX);

	name_sz = strlen(sc->hdev->name) + sizeof(SENSOR_SUFFIX);

	name = kzalloc(name_sz, GFP_KERNEL);

	if (!name) {

		ret = -ENOMEM;

		goto err;

	}

	snprintf(name, name_sz, "%s" DS4_SENSOR_SUFFIX, sc->hdev->name);

	snprintf(name, name_sz, "%s" SENSOR_SUFFIX, sc->hdev->name);

	sc->sensor_dev->name = name;



	if (sc->quirks & SIXAXIS_CONTROLLER) {

		/* For the DS3 we only support the accelerometer, which works

		 * quite well even without calibration. The device also has

		 * a 1-axis gyro, but it is very difficult to manage from within

		 * the driver even to get data, the sensor is inaccurate and

		 * the behavior is very different between hardware revisions.

		 */

		input_set_abs_params(sc->sensor_dev, ABS_X, -512, 511, 4, 0);

		input_set_abs_params(sc->sensor_dev, ABS_Y, -512, 511, 4, 0);

		input_set_abs_params(sc->sensor_dev, ABS_Z, -512, 511, 4, 0);

		input_abs_set_res(sc->sensor_dev, ABS_X, SIXAXIS_ACC_RES_PER_G);

		input_abs_set_res(sc->sensor_dev, ABS_Y, SIXAXIS_ACC_RES_PER_G);

		input_abs_set_res(sc->sensor_dev, ABS_Z, SIXAXIS_ACC_RES_PER_G);

	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {

		range = DS4_ACC_RES_PER_G*4;

		input_set_abs_params(sc->sensor_dev, ABS_X, -range, range, 16, 0);

		input_set_abs_params(sc->sensor_dev, ABS_Y, -range, range, 16, 0);
@@ -1312,6 +1346,8 @@ static int sony_register_sensors(struct sony_sc *sc) 


		__set_bit(EV_MSC, sc->sensor_dev->evbit);

		__set_bit(MSC_TIMESTAMP, sc->sensor_dev->mscbit);

	}



	__set_bit(INPUT_PROP_ACCELEROMETER, sc->sensor_dev->propbit);



	ret = input_register_device(sc->sensor_dev);
@@ -2447,8 +2483,7 @@ static int sony_input_configured(struct hid_device *hdev, 
		goto err_stop;

	}



	if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||

			(sc->quirks & NAVIGATION_CONTROLLER_USB)) {

	if (sc->quirks & NAVIGATION_CONTROLLER_USB) {

		/*

		 * The Sony Sixaxis does not handle HID Output Reports on the

		 * Interrupt EP like it could, so we need to force HID Output
@@ -2476,8 +2511,46 @@ static int sony_input_configured(struct hid_device *hdev, 
		}



		sony_init_output_report(sc, sixaxis_send_output_report);

	} else if ((sc->quirks & SIXAXIS_CONTROLLER_BT) ||

			(sc->quirks & NAVIGATION_CONTROLLER_BT)) {

	} else if (sc->quirks & NAVIGATION_CONTROLLER_BT) {

		/*

		 * The Navigation controller wants output reports sent on the ctrl

		 * endpoint when connected via Bluetooth.

		 */

		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;



		ret = sixaxis_set_operational_bt(hdev);

		if (ret < 0) {

			hid_err(hdev, "Failed to set controller into operational mode\n");

			goto err_stop;

		}



		sony_init_output_report(sc, sixaxis_send_output_report);

	} else if (sc->quirks & SIXAXIS_CONTROLLER_USB) {

		/*

		 * The Sony Sixaxis does not handle HID Output Reports on the

		 * Interrupt EP and the device only becomes active when the

		 * PS button is pressed. See comment for Navigation controller

		 * above for more details.

		 */

		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;

		hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;

		sc->defer_initialization = 1;



		ret = sixaxis_set_operational_usb(hdev);

		if (ret < 0) {

			hid_err(hdev, "Failed to set controller into operational mode\n");

			goto err_stop;

		}



		ret = sony_register_sensors(sc);

		if (ret) {

			hid_err(sc->hdev,

			"Unable to initialize motion sensors: %d\n", ret);

			goto err_stop;

		}



		sony_init_output_report(sc, sixaxis_send_output_report);

	} else if (sc->quirks & SIXAXIS_CONTROLLER_BT) {

		/*

		 * The Sixaxis wants output reports sent on the ctrl endpoint

		 * when connected via Bluetooth.
@@ -2490,6 +2563,13 @@ static int sony_input_configured(struct hid_device *hdev, 
			goto err_stop;

		}



		ret = sony_register_sensors(sc);

		if (ret) {

			hid_err(sc->hdev,

			"Unable to initialize motion sensors: %d\n", ret);

			goto err_stop;

		}



		sony_init_output_report(sc, sixaxis_send_output_report);

	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {

		ret = dualshock4_get_calibration_data(sc);