touchpad: add LIBINPUT_MODEL_WOBBLY_TOUCHPAD for the HP 14-ac157tu

If some elantech touchpads require a hysteresis, let's use some more generic
tag for those touchpads that require correct handling of pointer wobbles.

https://bugs.freedesktop.org/show_bug.cgi?id=94897

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
index 6c8ab37..cf5fffe 100644 (file)
--- a/src/evdev-mt-touchpad.c
+++ b/src/evdev-mt-touchpad.c
@@ -2023,6 +2023,9 @@ tp_init_hysteresis(struct tp_dispatch *tp)
            (tp->device->model_flags & EVDEV_MODEL_SYNAPTICS_SERIAL_TOUCHPAD))
                goto want_hysteresis;
 
+       if (tp->device->model_flags & EVDEV_MODEL_WOBBLY_TOUCHPAD)
+               goto want_hysteresis;
+
        tp->hysteresis_margin.x = 0;
        tp->hysteresis_margin.y = 0;
 

diff --git a/src/evdev.c b/src/evdev.c
index 861a298..e44dfd1 100644 (file)
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -1698,6 +1698,7 @@ evdev_read_model_flags(struct evdev_device *device)
                { "LIBINPUT_MODEL_CYAPA", EVDEV_MODEL_CYAPA },
                { "LIBINPUT_MODEL_ALPS_RUSHMORE", EVDEV_MODEL_ALPS_RUSHMORE },
                { "LIBINPUT_MODEL_LENOVO_T450_TOUCHPAD", EVDEV_MODEL_LENOVO_T450_TOUCHPAD },
+               { "LIBINPUT_MODEL_WOBBLY_TOUCHPAD", EVDEV_MODEL_WOBBLY_TOUCHPAD },
                { NULL, EVDEV_MODEL_DEFAULT },
        };
        const struct model_map *m = model_map;

diff --git a/src/evdev.h b/src/evdev.h
index 76eeb8c..0e08f6d 100644 (file)
--- a/src/evdev.h
+++ b/src/evdev.h
@@ -114,6 +114,7 @@ enum evdev_device_model {
        EVDEV_MODEL_CYAPA = (1 << 15),
        EVDEV_MODEL_ALPS_RUSHMORE = (1 << 16),
        EVDEV_MODEL_LENOVO_T450_TOUCHPAD= (1 << 17),
+       EVDEV_MODEL_WOBBLY_TOUCHPAD = (1 << 18),
 };
 
 struct mt_slot {

diff --git a/udev/90-libinput-model-quirks.hwdb b/udev/90-libinput-model-quirks.hwdb
index 242c444..91ac243 100644 (file)
--- a/udev/90-libinput-model-quirks.hwdb
+++ b/udev/90-libinput-model-quirks.hwdb
@@ -81,6 +81,14 @@ libinput:name:Cypress APA Trackpad ?cyapa?:dmi:*
  LIBINPUT_MODEL_CYAPA=1
 
 ##########################################
+# HP
+##########################################
+
+# HP 14-ac157tu
+libinput:name:*ETPS/2 Elantech Touchpad*:dmi:*svnHP*pvrCNB1:*
+ LIBINPUT_MODEL_WOBBLY_TOUCHPAD=1
+
+##########################################
 # LENOVO
 ##########################################