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Commit 4202f1de authored by Przemo Firszt's avatar Przemo Firszt Committed by Jiri Kosina
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HID: wacom: Add battery/ac reporting for Intuos4 WL 



This patch adds battery/ac reporting for Intuos4 WL. It uses existing
sysfs code, but the device reports battery capacity in more fine-grained way,
so there has to be a separate lookup table (called batcap_i4).

Signed-off-by: default avatarPrzemo Firszt <przemo@firszt.eu>
Reviewed-by: default avatarChris Bagwell <chris@cnpbagwell.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent e31e3832

drivers/hid/hid-wacom.c

+10 −0
Original line number Diff line number Diff line
@@ -49,6 +49,8 @@ struct wacom_data { 
/*percent of battery capacity for Graphire

  8th value means AC online and show 100% capacity */

static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };

/*percent of battery capacity for Intuos4 WL, AC has a separate bit*/

static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };



static enum power_supply_property wacom_battery_props[] = {

	POWER_SUPPLY_PROP_PRESENT,
@@ -447,6 +449,7 @@ static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report, 
	struct input_dev *input;

	unsigned char *data = (unsigned char *) raw_data;

	int i;

	__u8 power_raw;



	if (!(hdev->claimed & HID_CLAIMED_INPUT))

		return 0;
@@ -474,6 +477,13 @@ static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report, 
			wacom_i4_parse_report(hdev, wdata, input, data + i);

			i += 10;

			wacom_i4_parse_report(hdev, wdata, input, data + i);

			power_raw = data[i+10];

			if (power_raw != wdata->power_raw) {

				wdata->power_raw = power_raw;

				wdata->battery_capacity = batcap_i4[power_raw & 0x07];

				wdata->ps_connected = power_raw & 0x08;

			}



			break;

		default:

			hid_err(hdev, "Unknown report: %d,%d size:%d\n",