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touchpad: elantech touchpads can use a 2mm gesture motion threshold

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Unlike ALPS and Synaptics semi-mt touchpads, the Elantech touchpads appear to
be precise enough to allow a smaller motion threshold before we decide on the
type of gesture (pinch vs scroll).

https://bugs.freedesktop.org/show_bug.cgi?id=91475

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Peter Hutterer 2015-07-30 11:46:13 +10:00
parent 96d0e06f13
commit 6933062dab
4 changed files with 6 additions and 1 deletions
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4
src/evdev-mt-touchpad-gestures.c
View file

@ -189,8 +189,10 @@ tp_gesture_get_direction(struct tp_dispatch *tp, struct tp_touch *touch)
/*
* Semi-mt touchpads have somewhat inaccurate coordinates when
* 2 fingers are down, so use a slightly larger threshold.
* Elantech semi-mt touchpads are accurate enough though.
*/
if (tp->semi_mt)
if (tp->semi_mt &&
(tp->device->model_flags & EVDEV_MODEL_ELANTECH_TOUCHPAD) == 0)
move_threshold = TP_MM_TO_DPI_NORMALIZED(4);
else
move_threshold = TP_MM_TO_DPI_NORMALIZED(2);

1
src/evdev.c
View file

@ -1543,6 +1543,7 @@ evdev_read_model_flags(struct evdev_device *device)
{ "LIBINPUT_MODEL_ALPS_TOUCHPAD", EVDEV_MODEL_ALPS_TOUCHPAD },
{ "LIBINPUT_MODEL_SYNAPTICS_SERIAL_TOUCHPAD", EVDEV_MODEL_SYNAPTICS_SERIAL_TOUCHPAD },
{ "LIBINPUT_MODEL_JUMPING_SEMI_MT", EVDEV_MODEL_JUMPING_SEMI_MT },
{ "LIBINPUT_MODEL_ELANTECH_TOUCHPAD", EVDEV_MODEL_ELANTECH_TOUCHPAD },
{ NULL, EVDEV_MODEL_DEFAULT },
};
const struct model_map *m = model_map;

1
src/evdev.h
View file

@ -106,6 +106,7 @@ enum evdev_device_model {
EVDEV_MODEL_ALPS_TOUCHPAD = (1 << 8),
EVDEV_MODEL_SYNAPTICS_SERIAL_TOUCHPAD = (1 << 9),
EVDEV_MODEL_JUMPING_SEMI_MT = (1 << 10),
EVDEV_MODEL_ELANTECH_TOUCHPAD = (1 << 11),
};
struct mt_slot {

1
udev/90-libinput-model-quirks.hwdb
View file

@ -39,6 +39,7 @@ libinput:touchpad:input:b0005v05ACp*
##########################################
libinput:name:*ETPS/2 Elantech Touchpad*:dmi:*
LIBINPUT_ATTR_RESOLUTION_HINT=31x31
LIBINPUT_MODEL_ELANTECH_TOUCHPAD=1
##########################################
# Google