diff options
Diffstat (limited to 'drivers/hid/hid-multitouch.c')
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 692647485a53..24d5b6deb571 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -69,6 +69,7 @@ MODULE_LICENSE("GPL"); #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12) #define MT_QUIRK_FORCE_GET_FEATURE (1 << 13) #define MT_QUIRK_FIX_CONST_CONTACT_ID (1 << 14) +#define MT_QUIRK_TOUCH_SIZE_SCALING (1 << 15) #define MT_INPUTMODE_TOUCHSCREEN 0x02 #define MT_INPUTMODE_TOUCHPAD 0x03 @@ -222,7 +223,8 @@ static struct mt_class mt_classes[] = { */ { .name = MT_CLS_3M, .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | - MT_QUIRK_SLOT_IS_CONTACTID, + MT_QUIRK_SLOT_IS_CONTACTID | + MT_QUIRK_TOUCH_SIZE_SCALING, .sn_move = 2048, .sn_width = 128, .sn_height = 128, @@ -658,9 +660,17 @@ static void mt_complete_slot(struct mt_device *td, struct input_dev *input) if (active) { /* this finger is in proximity of the sensor */ int wide = (s->w > s->h); - /* divided by two to match visual scale of touch */ - int major = max(s->w, s->h) >> 1; - int minor = min(s->w, s->h) >> 1; + int major = max(s->w, s->h); + int minor = min(s->w, s->h); + + /* + * divided by two to match visual scale of touch + * for devices with this quirk + */ + if (td->mtclass.quirks & MT_QUIRK_TOUCH_SIZE_SCALING) { + major = major >> 1; + minor = minor >> 1; + } input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); |