Commit b0882cb7 authored by Jason Gerecke's avatar Jason Gerecke Committed by Jiri Kosina
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HID: wacom: Status packet provides 'charging', not 'powered' bit 



The status packet for tablets which can use a wireless module contains a
bit that is set if the battery is charging. This bit will be 0 if either
a battery is not present or if the battery has reached full charge. Note
that the charging circuit may continue to charge the battery for a short
time after reaching "100%".

Signed-off-by: default avatarJason Gerecke <killertofu@gmail.com>
Acked-by: default avatarPing Cheng <pingc@wacom.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 2d13a438

drivers/hid/wacom_sys.c

+2 −0
Original line number Diff line number Diff line
@@ -977,6 +977,8 @@ static int wacom_battery_get_property(struct power_supply *psy, 
			else if (wacom->wacom_wac.battery_capacity == 100 &&

				    wacom->wacom_wac.ps_connected)

				val->intval = POWER_SUPPLY_STATUS_FULL;

			else if (wacom->wacom_wac.ps_connected)

				val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;

			else

				val->intval = POWER_SUPPLY_STATUS_DISCHARGING;

			break;

drivers/hid/wacom_wac.c

+5 −9
Original line number Diff line number Diff line
@@ -1917,7 +1917,7 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len) 


	connected = data[1] & 0x01;

	if (connected) {

		int pid, battery, ps_connected, charging;

		int pid, battery, charging;



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

		    wacom->shared->touch_input &&
@@ -1929,16 +1929,14 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len) 


		pid = get_unaligned_be16(&data[6]);

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

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

		charging = ps_connected && wacom->battery_capacity < 100;

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

		if (wacom->pid != pid) {

			wacom->pid = pid;

			wacom_schedule_work(wacom);

		}



		if (wacom->shared->type)

			wacom_notify_battery(wacom, battery, charging,

					     ps_connected);

			wacom_notify_battery(wacom, battery, charging, 0);



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

		/* disconnected while previously connected */
@@ -1969,12 +1967,10 @@ static int wacom_status_irq(struct wacom_wac *wacom_wac, size_t len) 


	if (data[9] & 0x02) { /* wireless module is attached */

		int battery = (data[8] & 0x3f) * 100 / 31;

		bool ps_connected = !!(data[8] & 0x80);

		bool charging = ps_connected &&

				wacom_wac->battery_capacity < 100;

		bool charging = !!(data[8] & 0x80);



		wacom_notify_battery(wacom_wac, battery, charging,

				     ps_connected);

				     1);



		if (!wacom->battery.dev &&

		    !(features->quirks & WACOM_QUIRK_BATTERY)) {

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