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Commit 6c5f860d authored by Frank Praznik's avatar Frank Praznik Committed by Jiri Kosina
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HID: sony: Add Dualshock 4 Bluetooth battery and touchpad parsing 



Add Dualshock 4 battery and touchpad parsing for Bluetooth reports.

Signed-off-by: default avatarFrank Praznik <frank.praznik@oh.rr.com>
Reviewed-by: default avatarDavid Herrmann <dh.herrmann@gmail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent fdcf105d

drivers/hid/hid-sony.c

+20 −8
Original line number Diff line number Diff line
@@ -861,25 +861,34 @@ static void dualshock4_parse_report(struct sony_sc *sc, __u8 *rd, int size) 
						struct hid_input, list);

	struct input_dev *input_dev = hidinput->input;

	unsigned long flags;

	int n, offset = 35;

	int n, offset;

	__u8 cable_state, battery_capacity, battery_charging;



	/* Battery and touchpad data starts at byte 30 in the USB report and

	 * 32 in Bluetooth report.

	 */

	offset = (sc->quirks & DUALSHOCK4_CONTROLLER_USB) ? 30 : 32;



	/* The lower 4 bits of byte 30 contain the battery level

	 * and the 5th bit contains the USB cable state.

	 */

	cable_state = (rd[30] >> 4) & 0x01;

	battery_capacity = rd[30] & 0x0F;

	cable_state = (rd[offset] >> 4) & 0x01;

	battery_capacity = rd[offset] & 0x0F;



	/* On USB the Dualshock 4 battery level goes from 0 to 11.

	 * A battery level of 11 means fully charged.

	/* When a USB power source is connected the battery level ranges from

	 * 0 to 10, and when running on battery power it ranges from 0 to 9.

	 * A battery level above 10 when plugged in means charge completed.

	 */

	if (cable_state && battery_capacity == 11)

	if (!cable_state || battery_capacity > 10)

		battery_charging = 0;

	else

		battery_charging = 1;



	if (!cable_state)

		battery_capacity++;

	if (battery_capacity > 10)

		battery_capacity--;

		battery_capacity = 10;



	battery_capacity *= 10;



	spin_lock_irqsave(&sc->lock, flags);
@@ -888,7 +897,10 @@ static void dualshock4_parse_report(struct sony_sc *sc, __u8 *rd, int size) 
	sc->battery_charging = battery_charging;

	spin_unlock_irqrestore(&sc->lock, flags);



	/* The Dualshock 4 multi-touch trackpad data starts at offset 35 on USB.

	offset += 5;



	/* The Dualshock 4 multi-touch trackpad data starts at offset 35 on USB

	 * and 37 on Bluetooth.

	 * The first 7 bits of the first byte is a counter and bit 8 is a touch

	 * indicator that is 0 when pressed and 1 when not pressed.

	 * The next 3 bytes are two 12 bit touch coordinates, X and Y.