The touchpad's says it can do two- and three-finger detection but it never
sends events for it. Disable them so we treat it as pure single-finger
touchpad.
https://bugzilla.redhat.com/show_bug.cgi?id=1351285
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
The Logitech MX master has different click angles for the two wheels.
https://github.com/systemd/systemd/issues/3947
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This is only used by the fallback dispatch method, not by any of the others.
Anything dispatch-specific should go into that struct.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
All these effectively returned bools anyway, switch the signature over to be
less ambiguous.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
These are internal functions, if we need them to return an error code we can
change that at any time. Meanwhile, if we only ever return 0 anyway we might
as well just make them voids to save on error paths.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
All Dell touchpas appear to have a visual marker on their touchpads. With a
visible marker our middle button can (and should) be much smaller since we
can rely on users to hit the button precisely.
https://bugs.freedesktop.org/show_bug.cgi?id=96710
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Expose the middle button emulation on software buttons as proper config
option. When enabled, remove the middle button software button area.
https://bugs.freedesktop.org/show_bug.cgi?id=96663
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
To unify this we need to move the tagging process forward so tp_init() can
rely on it for config setup. This means moving it to the touchpad init code.
Other than that no real functional changes, the rules stay the same:
* serial/i2c/etc. are considered internal touchpads
* Bluetooth is always external
* USB is external for Logitech devices
* USB is external for Wacom devices
* USB is internal for Apple touchpads
And if we can't figure it out, we assume it's external and log a message so we
can put a quirk in place.
https://bugs.freedesktop.org/show_bug.cgi?id=96735
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Until the kernel patches to handle LED group switching are in place we provide
the external API backed by an implementation that simply exposes one group
with one mode and no toggle buttons. This allows us to ship a libinput release
with the API in place and switch libinput later without having all the stack
above us being delayed.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Carlos Garnacho <carlosg@gnome.org>
The removal of the hysteresis even on precise touchpads has led to
difficulties controlling the cursor in a few instances. Since 27078b2667
we only have the hysteresis on Apple touchpads and the Lenovo *40 series and
later. Even on those do we see some positioning difficulties (bug 94379).
So restore the hysteresis by default again for all touchpads. In the future a
knob could be exposed for precision vs reactivity or something, but for now
the drawback of imprecise positioning does not outweigh the benefits we get
on those few devices.
https://bugs.freedesktop.org/show_bug.cgi?id=94379
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This device has a touchpad on the mouse but it's labeled as mouse. For litest
we only label it as LITEST_MOUSE feature and test the touchpad directly on the
device.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
And change the various callers, especially those where we only had the
separate struct for indentation purposes.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
A large part of the bugs seen right now are related to touchpads jittering too
much. Fixing them one by one is entertaining, but time consuming. Right now
the number of touchpads that require a hysteresis seem to outnumber those that
don't, so switch the approach around: leave the hysteresis in place but
disable it for those touchpads that don't need it.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Was only used for the touchpad hysteresis, we can re-use the wobbly touchpad
tag for this.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Trackballs are effectively stationary devices and can be positioned at any
rotation. They are also employed by users with impaired dexterity which
sometimes implies that they are positioned at an non-default angle to make the
buttons easier to reach.
Add a config option for rotation for trackball devices. Currently only
supported for 90-degree angles, if there is a need we can add more angles
later.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Currently unused, but oh, the possibilities...
The only thing we have to go on for trackballs at the moment is whether they
have "Trackball" in the name string. All others need to be manually tagged.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Carlos Garnacho <carlosg@gnome.org>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Carlos Garnacho <carlosg@gnome.org>
If a touchscreen has a fuzz value use it for motion hysteresis similar to how
we do it for a touchpad. This stops pointer wobbles as seen in
https://bugs.freedesktop.org/show_bug.cgi?id=94918
It's up to the system to override or set the kernel's fuzz value correctly,
i.e. a udev hwdb entry is required where the kernel driver does not set it.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>
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>
Rather than checking the physical key's state, set a flag for the button to be
down. This enables us to use non-physical buttons (middle button emulation).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
The touchpad's sensors are too far apart (or the firmware interferes), causing
in a jerky movement visible especially on slow motion. We get a bunch of
normal motion events, then only ABS_MT_PRESSURE updates without x/y updates.
After about one mm of movement x/y updates resume, with the first event
covering the distance between the last motion event. That event is usually
accelerated and thus causes a large jump. Subsequent events are sufficiently
fine-grained again.
This patch counts the number of non-motion events. Once we hit 10 in a row, we
mark the first motion update as non-dirty, effectively discarding the motion
and thus stopping the pointer jumps.
https://bugs.freedesktop.org/show_bug.cgi?id=94379
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Some older touchpad devices jitter a fair bit when a finger is resting on the
touchpad. That's why the hysteresis was introduced in the synaptics driver
back in 2011. However, the default value of the hysteresis in the synaptics
driver ended up being 0, even though the code looks like it's using a fraction
of the touchpad diagonal. When the hysteresis code was ported to libinput it
was eventually set to 0.5mm.
Turns out this is still too high and tiny finger motions are either
nonreactive or quite jumpy, making it hard to select small targets. Drop the
default hysteresis by reducing its margin to 0, but leave it in place for
those devices where we need them (e.g. the cyapa touchpads).
https://bugs.freedesktop.org/show_bug.cgi?id=93503
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This button sends a release N, press N+1 on each press, cycling through the
three event codes supported. This causes a stuck button since the current mode
is never released.
Long-term this better served by a set of switches that toggle accordingly, for
now disable the button codes.
https://bugs.freedesktop.org/show_bug.cgi?id=92127
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Label internal keyboards through the udev hwdb and only pair the internal
(usb) Apple touchpads with those keyboards labelled as such.
https://bugs.freedesktop.org/show_bug.cgi?id=93367
Co-authored-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
If an x220 is updated to the touchpad firmware version 8.1, the touchpad
suffers from the same issues as the x230 and needs custom acceleration code.
Unfortunately we cannot detect this otherwise, so it is left to the user as a
custom hwdb setting.
https://bugzilla.redhat.com/show_bug.cgi?id=1264453
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
A device with REL_X/Y and keys gets marked only as ID_INPUT_KEY, initializes
as keyboard and then segfaults when we send x/y coordinates - pointer
acceleration never initializes.
Ignore the events and log a bug instead. This intentionally only papers over
the underlying issue, let's wait for a real device to trigger this and then
look at the correct solution.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
