Commit 27c5438f authored by Christian Mayer's avatar Christian Mayer Committed by Jiri Kosina
Browse files

HID: steelseries: export charging state for the SteelSeries Arctis 9 headset 



The Arctis 9 headset provides the information if
the power cable is plugged in and charging via the battery report.
This information can be exported.

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 6596be62

drivers/hid/hid-steelseries.c

+20 −3
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ struct steelseries_device { 
	struct power_supply *battery;

	uint8_t battery_capacity;

	bool headset_connected;

	bool battery_charging;

};



#if IS_BUILTIN(CONFIG_LEDS_CLASS) || \
@@ -450,9 +451,12 @@ static int steelseries_headset_battery_get_property(struct power_supply *psy, 
		val->intval = 1;

		break;

	case POWER_SUPPLY_PROP_STATUS:

		val->intval = sd->headset_connected ?

			POWER_SUPPLY_STATUS_DISCHARGING :

			POWER_SUPPLY_STATUS_UNKNOWN;

		if (sd->headset_connected) {

			val->intval = sd->battery_charging ?

				POWER_SUPPLY_STATUS_CHARGING :

				POWER_SUPPLY_STATUS_DISCHARGING;

		} else

			val->intval = POWER_SUPPLY_STATUS_UNKNOWN;

		break;

	case POWER_SUPPLY_PROP_SCOPE:

		val->intval = POWER_SUPPLY_SCOPE_DEVICE;
@@ -514,6 +518,7 @@ static int steelseries_headset_battery_register(struct steelseries_device *sd) 
	/* avoid the warning of 0% battery while waiting for the first info */

	steelseries_headset_set_wireless_status(sd->hdev, false);

	sd->battery_capacity = 100;

	sd->battery_charging = false;



	sd->battery = devm_power_supply_register(&sd->hdev->dev,

			&sd->battery_desc, &battery_cfg);
@@ -646,6 +651,7 @@ static int steelseries_headset_raw_event(struct hid_device *hdev, 
	struct steelseries_device *sd = hid_get_drvdata(hdev);

	int capacity = sd->battery_capacity;

	bool connected = sd->headset_connected;

	bool charging = sd->battery_charging;

	unsigned long flags;



	/* Not a headset */
@@ -681,6 +687,7 @@ static int steelseries_headset_raw_event(struct hid_device *hdev, 


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

			connected = true;

			charging = read_buf[4] == 0x01;



			/*

			 * Found no official documentation about min and max.
@@ -693,6 +700,7 @@ static int steelseries_headset_raw_event(struct hid_device *hdev, 
			 * there is no known status of the device read_buf[0] == 0x55

			 */

			connected = false;

			charging = false;

		}

	}
@@ -713,6 +721,15 @@ static int steelseries_headset_raw_event(struct hid_device *hdev, 
		power_supply_changed(sd->battery);

	}



	if (charging != sd->battery_charging) {

		hid_dbg(sd->hdev,

			"Battery charging status changed from %scharging to %scharging\n",

			sd->battery_charging ? "" : "not ",

			charging ? "" : "not ");

		sd->battery_charging = charging;

		power_supply_changed(sd->battery);

	}



request_battery:

	spin_lock_irqsave(&sd->lock, flags);

	if (!sd->removed)