diff options
| author | Jason Gerecke <killertofu@gmail.com> | 2016-10-20 03:03:44 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2016-10-20 09:53:57 +0200 |
| commit | b5c921e6c3916cdadd6e605d792f811abf7a5f82 (patch) | |
| tree | a48d0f6c04eaba605ef8ea9bd71bc5b587f75bf1 /drivers/hid | |
| parent | HID: wacom: generic: Support and use 'Custom HID' mode and usages (diff) | |
| download | linux-b5c921e6c3916cdadd6e605d792f811abf7a5f82.tar.xz linux-b5c921e6c3916cdadd6e605d792f811abf7a5f82.zip | |
HID: wacom: generic: Add support for vendor-defined "Distance" usage
The vendor-defined 0xFF0D01032 ("Distance") usage is nearly equivalent to
HID_GD_Z, except that the axis direction is inverted. Unlike HID_GD_Z which
increases in value as the pen-to-surface distance is decreased, this usage
decreases. Treat this usage as a special case to ensure we don't invert the
scale to be ABS_DISTANCE compatible like we do for HID_GD_Z.
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>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/wacom_wac.c | 4 | ||||
| -rw-r--r-- | drivers/hid/wacom_wac.h | 1 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index 6c2f0e4baf7d..f78ad77d9ed7 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -1442,7 +1442,8 @@ static int wacom_equivalent_usage(int usage) int subusage = (usage & 0xFF); if (subpage == WACOM_HID_SP_DIGITIZER || - subpage == WACOM_HID_SP_DIGITIZERINFO) { + subpage == WACOM_HID_SP_DIGITIZERINFO || + usage == WACOM_HID_WD_DISTANCE) { return usage; } @@ -1502,6 +1503,7 @@ static void wacom_wac_pen_usage_mapping(struct hid_device *hdev, case HID_GD_Y: wacom_map_usage(input, usage, field, EV_ABS, ABS_Y, 4); break; + case WACOM_HID_WD_DISTANCE: case HID_GD_Z: wacom_map_usage(input, usage, field, EV_ABS, ABS_DISTANCE, 0); break; diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h index ba914bad971f..63a5a2586707 100644 --- a/drivers/hid/wacom_wac.h +++ b/drivers/hid/wacom_wac.h @@ -88,6 +88,7 @@ #define WACOM_HID_SP_DIGITIZER 0x000d0000 #define WACOM_HID_SP_DIGITIZERINFO 0x00100000 #define WACOM_HID_WD_DIGITIZER (WACOM_HID_UP_WACOMDIGITIZER | 0x01) +#define WACOM_HID_WD_DISTANCE (WACOM_HID_UP_WACOMDIGITIZER | 0x0132) #define WACOM_HID_WD_DATAMODE (WACOM_HID_UP_WACOMDIGITIZER | 0x1002) #define WACOM_HID_UP_G9 0xff090000 #define WACOM_HID_G9_PEN (WACOM_HID_UP_G9 | 0x02) |