diff options
Diffstat (limited to 'drivers/hid/wacom_wac.c')
| -rw-r--r-- | drivers/hid/wacom_wac.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index 678f504239a0..67ecd149ad21 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -1752,6 +1752,9 @@ int wacom_equivalent_usage(int usage) int subpage = (usage & 0xFF00) << 8; int subusage = (usage & 0xFF); + if (usage == WACOM_HID_WT_REPORT_VALID) + return usage; + if (subpage == HID_UP_UNDEFINED) subpage = WACOM_HID_SP_DIGITIZER; @@ -2494,6 +2497,9 @@ static void wacom_wac_finger_event(struct hid_device *hdev, unsigned equivalent_usage = wacom_equivalent_usage(usage->hid); struct wacom_features *features = &wacom->wacom_wac.features; + if (wacom_wac->is_invalid_bt_frame) + return; + switch (equivalent_usage) { case HID_GD_X: wacom_wac->hid_data.x = value; @@ -2513,12 +2519,14 @@ static void wacom_wac_finger_event(struct hid_device *hdev, case HID_DG_TIPSWITCH: wacom_wac->hid_data.tipswitch = value; break; + case WACOM_HID_WT_REPORT_VALID: + wacom_wac->is_invalid_bt_frame = !value; + return; case HID_DG_CONTACTMAX: features->touch_max = value; return; } - if (usage->usage_index + 1 == field->report_count) { if (equivalent_usage == wacom_wac->hid_data.last_slot_field) wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input); @@ -2533,6 +2541,8 @@ static void wacom_wac_finger_pre_report(struct hid_device *hdev, struct hid_data* hid_data = &wacom_wac->hid_data; int i; + wacom_wac->is_invalid_bt_frame = false; + for (i = 0; i < report->maxfield; i++) { struct hid_field *field = report->field[i]; int j; |