HID: wacom: generic: Add support for battery status on pen and pad interfaces
Adds support for usages that may appear on the pen or pad interface which
report the state of the tablet battery.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 70de1fa..f3edecf 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1525,6 +1525,10 @@
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
switch (equivalent_usage) {
+ case WACOM_HID_WD_BATTERY_LEVEL:
+ case WACOM_HID_WD_BATTERY_CHARGING:
+ features->quirks |= WACOM_QUIRK_BATTERY;
+ break;
case WACOM_HID_WD_ACCELEROMETER_X:
__set_bit(INPUT_PROP_ACCELEROMETER, input->propbit);
wacom_map_usage(input, usage, field, EV_ABS, ABS_X, 0);
@@ -1574,8 +1578,25 @@
wacom_wac->hid_data.inrange_state |= value;
}
- if (equivalent_usage != WACOM_HID_WD_TOUCHRINGSTATUS)
+ switch (equivalent_usage) {
+ case WACOM_HID_WD_BATTERY_LEVEL:
+ wacom_wac->hid_data.battery_capacity = value;
+ wacom_wac->hid_data.bat_connected = 1;
+ return 0;
+
+ case WACOM_HID_WD_BATTERY_CHARGING:
+ wacom_wac->hid_data.bat_charging = value;
+ wacom_wac->hid_data.ps_connected = value;
+ wacom_wac->hid_data.bat_connected = 1;
+ return 0;
+
+ case WACOM_HID_WD_TOUCHRINGSTATUS:
+ return 0;
+
+ default:
input_event(input, usage->type, usage->code, value);
+ break;
+ }
return 0;
}
@@ -1594,6 +1615,7 @@
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+ struct wacom_features *features = &wacom_wac->features;
struct input_dev *input = wacom_wac->pad_input;
bool active = wacom_wac->hid_data.inrange_state != 0;
@@ -1604,6 +1626,16 @@
if (wacom_equivalent_usage(report->field[0]->physical) == HID_DG_TABLETFUNCTIONKEY)
input_event(input, EV_ABS, ABS_MISC, active ? PAD_DEVICE_ID : 0);
+ if (features->quirks & WACOM_QUIRK_BATTERY) {
+ int capacity = wacom_wac->hid_data.battery_capacity;
+ bool charging = wacom_wac->hid_data.bat_charging;
+ bool connected = wacom_wac->hid_data.bat_connected;
+ bool powered = wacom_wac->hid_data.ps_connected;
+
+ wacom_notify_battery(wacom_wac, capacity, charging,
+ connected, powered);
+ }
+
input_sync(input);
}
@@ -1633,6 +1665,9 @@
case HID_DG_INRANGE:
wacom_map_usage(input, usage, field, EV_KEY, BTN_TOOL_PEN, 0);
break;
+ case HID_DG_BATTERYSTRENGTH:
+ features->quirks |= WACOM_QUIRK_BATTERY;
+ break;
case HID_DG_INVERT:
wacom_map_usage(input, usage, field, EV_KEY,
BTN_TOOL_RUBBER, 0);
@@ -1703,6 +1738,10 @@
if (!(features->quirks & WACOM_QUIRK_SENSE))
wacom_wac->hid_data.sense_state = value;
return 0;
+ case HID_DG_BATTERYSTRENGTH:
+ wacom_wac->hid_data.battery_capacity = value;
+ wacom_wac->hid_data.bat_connected = 1;
+ break;
case HID_DG_INVERT:
wacom_wac->hid_data.invert_state = value;
return 0;
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 1f7c4a8..7418c97 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -101,6 +101,8 @@
#define WACOM_HID_WD_ACCELEROMETER_X (WACOM_HID_UP_WACOMDIGITIZER | 0x0401)
#define WACOM_HID_WD_ACCELEROMETER_Y (WACOM_HID_UP_WACOMDIGITIZER | 0x0402)
#define WACOM_HID_WD_ACCELEROMETER_Z (WACOM_HID_UP_WACOMDIGITIZER | 0x0403)
+#define WACOM_HID_WD_BATTERY_CHARGING (WACOM_HID_UP_WACOMDIGITIZER | 0x0404)
+#define WACOM_HID_WD_BATTERY_LEVEL (WACOM_HID_UP_WACOMDIGITIZER | 0x043b)
#define WACOM_HID_WD_EXPRESSKEY00 (WACOM_HID_UP_WACOMDIGITIZER | 0x0910)
#define WACOM_HID_WD_BUTTONHOME (WACOM_HID_UP_WACOMDIGITIZER | 0x0990)
#define WACOM_HID_WD_BUTTONUP (WACOM_HID_UP_WACOMDIGITIZER | 0x0991)
@@ -257,6 +259,10 @@
int last_slot_field;
int num_expected;
int num_received;
+ int battery_capacity;
+ int bat_charging;
+ int bat_connected;
+ int ps_connected;
};
struct wacom_remote_data {
diff --git a/include/linux/hid.h b/include/linux/hid.h
index e712101..3baa2f9 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -231,6 +231,7 @@
#define HID_DG_TAP 0x000d0035
#define HID_DG_TABLETFUNCTIONKEY 0x000d0039
#define HID_DG_PROGRAMCHANGEKEY 0x000d003a
+#define HID_DG_BATTERYSTRENGTH 0x000d003b
#define HID_DG_INVERT 0x000d003c
#define HID_DG_TILT_X 0x000d003d
#define HID_DG_TILT_Y 0x000d003e