Commit 6596be62 authored by Christian Mayer's avatar Christian Mayer Committed by Jiri Kosina
Browse files

HID: steelseries: add SteelSeries Arctis 9 support 



Add support for the SteelSeries Arctis 9 headset. This driver
will export the battery information like it already does for
the Arcits 1 headset.

Signed-off-by: default avatarChristian Mayer <git@mayer-bgk.de>
Reviewed-by: default avatarBastien Nocera <hadess@hadess.net>
Tested-by: default avatarBastien Nocera <hadess@hadess.net>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.com>
parent 65b851a3

drivers/hid/hid-steelseries.c

+64 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 


#define STEELSERIES_SRWS1		BIT(0)

#define STEELSERIES_ARCTIS_1		BIT(1)

#define STEELSERIES_ARCTIS_9		BIT(2)



struct steelseries_device {

	struct hid_device *hdev;
@@ -375,7 +376,9 @@ static void steelseries_srws1_remove(struct hid_device *hdev) 
#define STEELSERIES_HEADSET_BATTERY_TIMEOUT_MS	3000



#define ARCTIS_1_BATTERY_RESPONSE_LEN		8

#define ARCTIS_9_BATTERY_RESPONSE_LEN		64

static const char arctis_1_battery_request[] = { 0x06, 0x12 };

static const char arctis_9_battery_request[] = { 0x00, 0x20 };



static int steelseries_headset_request_battery(struct hid_device *hdev,

	const char *request, size_t len)
@@ -395,6 +398,7 @@ static int steelseries_headset_request_battery(struct hid_device *hdev, 
		hid_err(hdev, "hid_hw_raw_request() failed with %d\n", ret);

		ret = -ENODATA;

	}



	kfree(write_buf);

	return ret;

}
@@ -407,6 +411,9 @@ static void steelseries_headset_fetch_battery(struct hid_device *hdev) 
	if (sd->quirks & STEELSERIES_ARCTIS_1)

		ret = steelseries_headset_request_battery(hdev,

			arctis_1_battery_request, sizeof(arctis_1_battery_request));

	else if (sd->quirks & STEELSERIES_ARCTIS_9)

		ret = steelseries_headset_request_battery(hdev,

			arctis_9_battery_request, sizeof(arctis_9_battery_request));



	if (ret < 0)

		hid_dbg(hdev,
@@ -522,9 +529,22 @@ static int steelseries_headset_battery_register(struct steelseries_device *sd) 
	INIT_DELAYED_WORK(&sd->battery_work, steelseries_headset_battery_timer_tick);

	steelseries_headset_fetch_battery(sd->hdev);



	if (sd->quirks & STEELSERIES_ARCTIS_9) {

		/* The first fetch_battery request can remain unanswered in some cases */

		schedule_delayed_work(&sd->battery_work,

				msecs_to_jiffies(STEELSERIES_HEADSET_BATTERY_TIMEOUT_MS));

	}



	return 0;

}



static bool steelseries_is_vendor_usage_page(struct hid_device *hdev, uint8_t usage_page)

{

	return hdev->rdesc[0] == 0x06 &&

		hdev->rdesc[1] == usage_page &&

		hdev->rdesc[2] == 0xff;

}



static int steelseries_probe(struct hid_device *hdev, const struct hid_device_id *id)

{

	struct steelseries_device *sd;
@@ -550,6 +570,10 @@ static int steelseries_probe(struct hid_device *hdev, const struct hid_device_id 
	if (ret)

		return ret;



	if (sd->quirks & STEELSERIES_ARCTIS_9 &&

			!steelseries_is_vendor_usage_page(hdev, 0xc0))

		return -ENODEV;



	spin_lock_init(&sd->lock);



	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
@@ -606,6 +630,15 @@ static const __u8 *steelseries_srws1_report_fixup(struct hid_device *hdev, 
	return rdesc;

}



static uint8_t steelseries_headset_map_capacity(uint8_t capacity, uint8_t min_in, uint8_t max_in)

{

	if (capacity >= max_in)

		return 100;

	if (capacity <= min_in)

		return 0;

	return (capacity - min_in) * 100 / (max_in - min_in);

}



static int steelseries_headset_raw_event(struct hid_device *hdev,

					struct hid_report *report, u8 *read_buf,

					int size)
@@ -637,6 +670,32 @@ static int steelseries_headset_raw_event(struct hid_device *hdev, 
		}

	}



	if (sd->quirks & STEELSERIES_ARCTIS_9) {

		hid_dbg(sd->hdev,

			"Parsing raw event for Arctis 9 headset (%*ph)\n", size, read_buf);

		if (size < ARCTIS_9_BATTERY_RESPONSE_LEN) {

			if (!delayed_work_pending(&sd->battery_work))

				goto request_battery;

			return 0;

		}



		if (read_buf[0] == 0xaa && read_buf[1] == 0x01) {

			connected = true;



			/*

			 * Found no official documentation about min and max.

			 * Values defined by testing.

			 */

			capacity = steelseries_headset_map_capacity(read_buf[3], 0x68, 0x9d);

		} else {

			/*

			 * Device is off and sends the last known status read_buf[1] == 0x03 or

			 * there is no known status of the device read_buf[0] == 0x55

			 */

			connected = false;

		}

	}



	if (connected != sd->headset_connected) {

		hid_dbg(sd->hdev,

			"Connected status changed from %sconnected to %sconnected\n",
@@ -672,6 +731,10 @@ static const struct hid_device_id steelseries_devices[] = { 
	  HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, 0x12b6),

	.driver_data = STEELSERIES_ARCTIS_1 },



	{ /* SteelSeries Arctis 9 Wireless for XBox */

	  HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, 0x12c2),

	  .driver_data = STEELSERIES_ARCTIS_9 },



	{ }

};

MODULE_DEVICE_TABLE(hid, steelseries_devices);
@@ -690,3 +753,4 @@ MODULE_DESCRIPTION("HID driver for Steelseries devices"); 
MODULE_LICENSE("GPL");

MODULE_AUTHOR("Bastien Nocera <hadess@hadess.net>");

MODULE_AUTHOR("Simon Wood <simon@mungewell.org>");

MODULE_AUTHOR("Christian Mayer <git@mayer-bgk.de>");