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@xxxxxxxxx>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
---
drivers/hid/wacom_wac.c | 41 ++++++++++++++++++++++++++++++++++++++++-
drivers/hid/wacom_wac.h | 6 ++++++
include/linux/hid.h | 1 +
3 files changed, 47 insertions(+), 1 deletion(-)
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 @@ static void wacom_wac_pad_usage_mapping(struct hid_device *hdev,
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 @@ static int wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field,
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 @@ static void wacom_wac_pad_report(struct hid_device *hdev,
{
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 @@ static void wacom_wac_pad_report(struct hid_device *hdev,
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 @@ static void wacom_wac_pen_usage_mapping(struct hid_device *hdev,
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 @@ static int wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field,
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 @@ struct hid_data {
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 @@ struct hid_item {
#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
--
2.10.0
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