The HID_DG_WIDTH and HID_DG_HEIGHT usages report with width and height of contacts. From this information, a crude determination of orientation is also possible. This patch reports all three to userspace if a device reports this usage.
Signed-off-by: Jason Gerecke <[email protected]> --- drivers/hid/wacom_wac.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index 09fe5d6..280deb2 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -1497,6 +1497,13 @@ static void wacom_wac_finger_usage_mapping(struct hid_device *hdev, wacom_map_usage(input, usage, field, EV_ABS, ABS_MT_POSITION_Y, 4); break; + case HID_DG_WIDTH: + case HID_DG_HEIGHT: + features->last_slot_field = usage->hid; + wacom_map_usage(input, usage, field, EV_ABS, ABS_MT_TOUCH_MAJOR, 0); + wacom_map_usage(input, usage, field, EV_ABS, ABS_MT_TOUCH_MINOR, 0); + input_set_abs_params(input, ABS_MT_ORIENTATION, 0, 1, 0, 0); + break; case HID_DG_CONTACTID: features->last_slot_field = usage->hid; break; @@ -1545,6 +1552,13 @@ static void wacom_wac_finger_slot(struct wacom_wac *wacom_wac, hid_data->x); input_report_abs(input, mt ? ABS_MT_POSITION_Y : ABS_Y, hid_data->y); + + if (test_bit(ABS_MT_TOUCH_MAJOR, input->absbit)) { + input_report_abs(input, ABS_MT_TOUCH_MAJOR, max(hid_data->width, hid_data->height)); + input_report_abs(input, ABS_MT_TOUCH_MINOR, min(hid_data->width, hid_data->height)); + if (hid_data->width != hid_data->height) + input_report_abs(input, ABS_MT_ORIENTATION, hid_data->width <= hid_data->height ? 0 : 1); + } } } @@ -1561,6 +1575,12 @@ static int wacom_wac_finger_event(struct hid_device *hdev, case HID_GD_Y: wacom_wac->hid_data.y = value; break; + case HID_DG_WIDTH: + wacom_wac->hid_data.width = value; + break; + case HID_DG_HEIGHT: + wacom_wac->hid_data.height = value; + break; case HID_DG_CONTACTID: wacom_wac->hid_data.id = value; break; -- 2.4.6 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
