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HID: wacom: generic: Add support for battery status on pen and pad interfaces

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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>
This commit is contained in:
Jason Gerecke 2016-10-19 18:03:52 -07:00 committed by Jiri Kosina
parent 5922e61325
commit 93aab7fa4f
3 changed files with 47 additions and 1 deletions
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41
drivers/hid/wacom_wac.c
View file

@ -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;

6
drivers/hid/wacom_wac.h
View file

@ -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 {

1
include/linux/hid.h
View file

@ -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