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Commit ac8d1010 authored by Benjamin Tissoires's avatar Benjamin Tissoires Committed by Dmitry Torokhov
Browse files

Input: wacom - enhance Wireless Receiver battery reporting 



- Reports the current status of the battery (discharging, charging, full).
- Also notify the upower daemon when there is a change in the battery
  value.
- keep the battery value as a percentage, not the raw value
- add WACOM_QUIRK_BATTERY to easily add a battery to a device (required
  for Bluetooth devices)

Signed-off-by: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: default avatarPrzemo Firszt <przemo@firszt.eu>
Acked-by: default avatarPing Cheng <pingc@wacom.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent c757cbaf

drivers/hid/wacom.h

+7 −0
Original line number Diff line number Diff line
@@ -128,6 +128,13 @@ static inline void wacom_schedule_work(struct wacom_wac *wacom_wac) 
	schedule_work(&wacom->work);

}



static inline void wacom_notify_battery(struct wacom_wac *wacom_wac)

{

	struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);



	power_supply_changed(&wacom->battery);

}



extern const struct hid_device_id wacom_ids[];



void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);

drivers/hid/wacom_sys.c

+15 −4
Original line number Diff line number Diff line
@@ -769,6 +769,7 @@ static void wacom_destroy_leds(struct wacom *wacom) 
}



static enum power_supply_property wacom_battery_props[] = {

	POWER_SUPPLY_PROP_STATUS,

	POWER_SUPPLY_PROP_SCOPE,

	POWER_SUPPLY_PROP_CAPACITY

};
@@ -786,7 +787,16 @@ static int wacom_battery_get_property(struct power_supply *psy, 
			break;

		case POWER_SUPPLY_PROP_CAPACITY:

			val->intval =

				wacom->wacom_wac.battery_capacity * 100 / 31;

				wacom->wacom_wac.battery_capacity;

			break;

		case POWER_SUPPLY_PROP_STATUS:

			if (wacom->wacom_wac.bat_charging)

				val->intval = POWER_SUPPLY_STATUS_CHARGING;

			else if (wacom->wacom_wac.battery_capacity == 100 &&

				    wacom->wacom_wac.ps_connected)

				val->intval = POWER_SUPPLY_STATUS_FULL;

			else

				val->intval = POWER_SUPPLY_STATUS_DISCHARGING;

			break;

		default:

			ret = -EINVAL;
@@ -800,7 +810,7 @@ static int wacom_initialize_battery(struct wacom *wacom) 
{

	int error = 0;



	if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) {

	if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) {

		wacom->battery.properties = wacom_battery_props;

		wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props);

		wacom->battery.get_property = wacom_battery_get_property;
@@ -821,7 +831,7 @@ static int wacom_initialize_battery(struct wacom *wacom) 


static void wacom_destroy_battery(struct wacom *wacom)

{

	if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR &&

	if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) &&

	     wacom->battery.dev) {

		power_supply_unregister(&wacom->battery);

		wacom->battery.dev = NULL;
@@ -947,6 +957,7 @@ static void wacom_wireless_work(struct work_struct *work) 


	if (wacom_wac->pid == 0) {

		hid_info(wacom->hdev, "wireless tablet disconnected\n");

		wacom_wac1->shared->type = 0;

	} else {

		const struct hid_device_id *id = wacom_ids;

drivers/hid/wacom_wac.c

+18 −4
Original line number Diff line number Diff line
@@ -1365,7 +1365,7 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len) 


	connected = data[1] & 0x01;

	if (connected) {

		int pid, battery;

		int pid, battery, ps_connected;



		if ((wacom->shared->type == INTUOSHT) &&

				wacom->shared->touch_max) {
@@ -1375,17 +1375,29 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len) 
		}



		pid = get_unaligned_be16(&data[6]);

		battery = data[5] & 0x3f;

		battery = (data[5] & 0x3f) * 100 / 31;

		ps_connected = !!(data[5] & 0x80);

		if (wacom->pid != pid) {

			wacom->pid = pid;

			wacom_schedule_work(wacom);

		}



		if (wacom->shared->type &&

		    (battery != wacom->battery_capacity ||

		     ps_connected != wacom->ps_connected)) {

			wacom->battery_capacity = battery;

			wacom->ps_connected = ps_connected;

			wacom->bat_charging = ps_connected &&

						wacom->battery_capacity < 100;

			wacom_notify_battery(wacom);

		}

	} else if (wacom->pid != 0) {

		/* disconnected while previously connected */

		wacom->pid = 0;

		wacom_schedule_work(wacom);

		wacom->battery_capacity = 0;

		wacom->bat_charging = 0;

		wacom->ps_connected = 0;

	}



	return 0;
@@ -1558,8 +1570,10 @@ void wacom_setup_device_quirks(struct wacom_features *features) 
		features->quirks |= WACOM_QUIRK_NO_INPUT;



		/* must be monitor interface if no device_type set */

		if (!features->device_type)

		if (!features->device_type) {

			features->quirks |= WACOM_QUIRK_MONITOR;

			features->quirks |= WACOM_QUIRK_BATTERY;

		}

	}

}

drivers/hid/wacom_wac.h

+3 −0
Original line number Diff line number Diff line
@@ -68,6 +68,7 @@ 
#define WACOM_QUIRK_BBTOUCH_LOWRES	0x0002

#define WACOM_QUIRK_NO_INPUT		0x0004

#define WACOM_QUIRK_MONITOR		0x0008

#define WACOM_QUIRK_BATTERY		0x0010



enum {

	PENPARTNER = 0,
@@ -164,6 +165,8 @@ struct wacom_wac { 
	int pid;

	int battery_capacity;

	int num_contacts_left;

	int bat_charging;

	int ps_connected;

};



#endif