diff options
| -rw-r--r-- | drivers/hid/wacom_wac.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index 5978399ae7d2..92b52b1de526 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -2588,6 +2588,24 @@ static void wacom_wac_finger_slot(struct wacom_wac *wacom_wac, } } +static bool wacom_wac_slot_is_active(struct input_dev *dev, int key) +{ + struct input_mt *mt = dev->mt; + struct input_mt_slot *s; + + if (!mt) + return false; + + for (s = mt->slots; s != mt->slots + mt->num_slots; s++) { + if (s->key == key && + input_mt_get_value(s, ABS_MT_TRACKING_ID) >= 0) { + return true; + } + } + + return false; +} + static void wacom_wac_finger_event(struct hid_device *hdev, struct hid_field *field, struct hid_usage *usage, __s32 value) { @@ -2638,9 +2656,14 @@ static void wacom_wac_finger_event(struct hid_device *hdev, } if (usage->usage_index + 1 == field->report_count) { - if (equivalent_usage == wacom_wac->hid_data.last_slot_field && - wacom_wac->hid_data.confidence) - wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input); + if (equivalent_usage == wacom_wac->hid_data.last_slot_field) { + bool touch_removed = wacom_wac_slot_is_active(wacom_wac->touch_input, + wacom_wac->hid_data.id) && !wacom_wac->hid_data.tipswitch; + + if (wacom_wac->hid_data.confidence || touch_removed) { + wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input); + } + } } } |