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HID: wacom: generic: support touch on/off softkey 

Wacom Cintiq Pro has a softkey to turn touch on/off. Since it is
a softkey, hardware/firmware still reports touch events no matter
what state the softkey is. We need to ignore touch events when
the key is in off mode.

Signed-off-by: Ping Cheng <ping.cheng@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hifive-unleashed-5.1
Ping Cheng 2017-02-14 21:27:45 -08:00 committed by Jiri Kosina
parent 4082da80f4
commit d793ff8187
3 changed files with 22 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/hid/wacom_sys.c
View File

@ -2100,8 +2100,10 @@ static void wacom_set_shared_values(struct wacom_wac *wacom_wac)
wacom_wac->shared->touch_input = wacom_wac->touch_input;
}
if (wacom_wac->has_mute_touch_switch)
if (wacom_wac->has_mute_touch_switch) {
wacom_wac->shared->has_mute_touch_switch = true;
wacom_wac->shared->is_touch_on = true;
}
if (wacom_wac->shared->has_mute_touch_switch &&
wacom_wac->shared->touch_input) {

18
drivers/hid/wacom_wac.c
View File

@ -1739,6 +1739,7 @@ static void wacom_wac_pad_usage_mapping(struct hid_device *hdev,
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_TOUCHONOFF:
case WACOM_HID_WD_MUTE_DEVICE:
/*
* This usage, which is used to mute touch events, comes
* from the pad packet, but is reported on the touch
@ -1831,6 +1832,7 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field
struct wacom_features *features = &wacom_wac->features;
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
int i;
bool is_touch_on = value;
/*
* Avoid reporting this event and setting inrange_state if this usage
@ -1850,10 +1852,17 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field
input_event(input, usage->type, usage->code, 0);
break;
case WACOM_HID_WD_MUTE_DEVICE:
if (wacom_wac->shared->touch_input && value) {
wacom_wac->shared->is_touch_on = !wacom_wac->shared->is_touch_on;
is_touch_on = wacom_wac->shared->is_touch_on;
}
/* fall through*/
case WACOM_HID_WD_TOUCHONOFF:
if (wacom_wac->shared->touch_input) {
input_report_switch(wacom_wac->shared->touch_input,
SW_MUTE_DEVICE, !value);
SW_MUTE_DEVICE, !is_touch_on);
input_sync(wacom_wac->shared->touch_input);
}
break;
@ -2212,6 +2221,13 @@ static void wacom_wac_finger_slot(struct wacom_wac *wacom_wac,
bool prox = hid_data->tipswitch &&
report_touch_events(wacom_wac);
if (wacom_wac->shared->has_mute_touch_switch &&
!wacom_wac->shared->is_touch_on) {
if (!wacom_wac->shared->touch_down)
return;
prox = 0;
}
wacom_wac->hid_data.num_received++;
if (wacom_wac->hid_data.num_received > wacom_wac->hid_data.num_expected)
return;

2
drivers/hid/wacom_wac.h
View File

@ -121,6 +121,7 @@
#define WACOM_HID_WD_EXPRESSKEY00 (WACOM_HID_UP_WACOMDIGITIZER | 0x0910)
#define WACOM_HID_WD_EXPRESSKEYCAP00 (WACOM_HID_UP_WACOMDIGITIZER | 0x0950)
#define WACOM_HID_WD_MODE_CHANGE (WACOM_HID_UP_WACOMDIGITIZER | 0x0980)
#define WACOM_HID_WD_MUTE_DEVICE (WACOM_HID_UP_WACOMDIGITIZER | 0x0981)
#define WACOM_HID_WD_CONTROLPANEL (WACOM_HID_UP_WACOMDIGITIZER | 0x0982)
#define WACOM_HID_WD_ONSCREEN_KEYBOARD (WACOM_HID_UP_WACOMDIGITIZER | 0x0983)
#define WACOM_HID_WD_BUTTONCONFIG (WACOM_HID_UP_WACOMDIGITIZER | 0x0986)
@ -274,6 +275,7 @@ struct wacom_shared {
struct hid_device *pen;
struct hid_device *touch;
bool has_mute_touch_switch;
bool is_touch_on;
};
struct hid_data {