Unlikely, but there's the odd chance of the first touch coming in with the
same X or Y coordinate the kernel already has internally. This would
generate a bogus delta on the second event when the touch coordinate jumps
from 0/y or x/0 to the real coordinates.
For touchpads with distance support this is a real issue since the default
value for a touch distance is > 0.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Unlikely, but there's the odd chance of the first touch coming in with the
same X or Y coordinate the kernel already has internally. This would generate
a x/0 or 0/y event in libinput.
Sync the slot state on init, at least for Protocol B devices. For Protocol A
devices and mtdev, don't bother.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
The touchpad carries enough state around that calling release_all_keys() isn't
enough to properly suspend it. e.g. a button down after tapping won't be
released by trying to release the physical button for it.
We need to clear the state properly, but that's interface-specific so add a
new hook for it.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Just a move to make the next diff easier
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Add "interface" to the name to make things a bit clearer.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
If a physical button is down but releasing said button doesn't actually
release it, we loop endlessly. Detect that and log a bug instead.
Reproducible: trigger a tap-n-drag on a touchpad device, then remove it.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
The System76 Galago Ultra Pro is a rebranded Clevo W740SU with changed
firmware strings. To my knowledge, the Clevo W740SU and all its rebrands
possess smooth touchpads.
In the original bug report[1], a Galago Ultra Pro was returned to the
original DMI strings by flashing another firmware. This resulted in the
model identified as MODEL_SYSTEM76_CLEVO.
Since the actual manufacturer of the W740SU is Clevo and the CLEVO hwdb
entry already properly identifies other W740SU rebrands like the Schenker
S413, the model should be renamed to match.
[1]: https://bugs.freedesktop.org/show_bug.cgi?id=90170#c3https://bugs.freedesktop.org/show_bug.cgi?id=90353
Signed-off-by: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Running tests in parallel can exceed the current 100ms max timeout for udev to
settle things. Since this pretty much only triggers in test cases anyway,
let's be more lenient here.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Hitting a single key triggers a short timeout, just enough to cover the time
to the next key event. Hitting more than one key triggers the longer timeout.
This should improve responsiveness after single key events when the touchpad is
still the main interaction mode and a key needs to be pressed to advance in
the UI. When typing the hands require physical movement to get back to the
touchpad anyway so a longer timeout is acceptable and more reliable.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
On some touchpads, typing triggers touches in areas of the touchpad that
cannot easily be distinguished from other fingers. Pressure information is
useless too, so we have to go back to a timeout-based handling of touch data.
If we see non-modifier key events, disable the touchpad for a timeout and set
any touches starting during that timeout as palm.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Preparation to add different palm detection types. Not all of them need to be
un-done when leaving the edge area so a boolean is not enough.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Currently for the tap-and-drag gesture to end user has to wait for a
timeout to expire. Make it possible to end the drag gesture by just tapping.
The allowed finger sequences to start and end a drag are thus:
tap, down, .... move ...., up <wait for timeout>
tap, down, .... move ...., up, tap
https://bugs.freedesktop.org/show_bug.cgi?id=90255
Signed-off-by: Velimir Lisec <lisec.velimir@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
State diagram changes and a doc change squashed in.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
"read(int, void *, size_t)" returns the number of bytes read, but it
is ignored.
We don't really care about the number of bytes, but let's complain if we get
anything but EAGAIN.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
When the device supports true hovering, it reports this
information through ABS_MT_DISTANCE.
When this axis is available, we should rely on it to
(un)hover the touches as BTN_TOUCH is most of the time
unreliable (generated by the mouse emulation in the kernel).
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This code was largely lifted from the X server in
bb25b2ad29 but didn't take the copyright messages that
applied to that code.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Jonas Ådahl <jadahl@gmail.com>
Acked-by: Simon Thum <simon.thum@gmx.de>
Causes an error message in the device_disable_release_tap_n_drag test. When
the touchpad is suspended, all touches are ended in tp_clear_state. Since the
hovering support was added, this returns the touches to TOUCH_HOVERING, a
subsequent tp_handle_state() will turn them back into TOUCH_BEGIN based on
BTN_TOUCH and BTN_TOOL_FINGER still being down.
Clear the fake touch buttons as well after ending the touches, this way the
touch points are reset to TOUCH_NONE as intended.
Once we do that we don't need to manually change the tap finger count when
releasing taps, we can just let the count reset naturally.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Use tp->nfingers_down as trigger when we have no fingers left on the touchpad
and when we should return to idle. If all touchpoints end in the same frame
tp->nfingers is 0. Thus when we handle the first tap release we transition to
IDLE which now needs to handle (and discard) any touch release events.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Bonobo, Clevo, Galago and Kudu have clickpads and no markings ->
enable clickfinger by default.
Lemur and Gazelle have physical buttons, no need for extra configuration.
https://bugs.freedesktop.org/show_bug.cgi?id=90170
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This matches the vendor default.
Board IDs pulled from modinfo chromeos_laptop, touchpad names from a bit of
googling around.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
libinput supports lifting a finger during dragging and setting it back down
again to continue the drag. Curently the drag timeout is set to
DEFAULT_TAP_TIMEOUT. That is to short, when we're dragging the finger needs to
have enough time to move from one edge of the touchpad to the other. 180ms is
too short for that and causes false timeouts and thus button releases that
cancel the drag.
Introduce DEFAULT_DRAG_TIMEOUT and set it to 500 ms.
Signed-off-by: Velimir Lisec <lisec.velimir@gmail.com>
Reviewed-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>
The current doubletap timeout was incorrect, it gave the user only 180ms to
touch, release, touch, release to recognise a doubletap. But it would also set
a timeout on the second release, delaying the button events by 180ms.
Instead, re-arm the timer on the second touch down. This gives the user 180ms
to release and touch again (or time out). This makes doubletap much more
reliable and reduces the delay between the release and the button events
arriving since the finger down time is already counted.
Same fix for MULTITAP, though we already armed the timer on touch down so we
just have to remove the new timer on touch release which did little but delay
everything.
https://bugs.freedesktop.org/show_bug.cgi?id=90172
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Resetting a timerfd empties the data on the fd, so if the timer is reset
between triggering and us reading it, we may block trying to read it.
Since we read events off a device in a loop, a device sending a continuous
flow of events may cause the timer to trigger but delay reading it. If one of
the events cause e.g. the tap timer to be set, the timerfd may be empty at the
time of reading.
Suggested-by: Derek Foreman <derekf@osg.samsung.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
We'd rather keep these out of the hands of children.
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
If we have a middle button but no wheels, enable on-button scrolling for the
middle button by default. This applies e.g. to the Logitech trackball added as
new test device here.
This makes the separate check for POINTINGSTICK obsolete but I'd rather leave
this in to be more explicit about it.
https://bugs.freedesktop.org/show_bug.cgi?id=90208
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Some devices provide abs x/y and rel x/y. We can't know which event the device
will send. The Microsoft Surface Type Cover sends relative events, which
then crashes libinput when we don't have an accel filter set up.
So instead of checking that the device doesn't have ABS_X/Y, check for the
device to have REL_X/Y instead.
https://bugzilla.redhat.com/show_bug.cgi?id=1206869
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-By: Derek Foreman <derekf@osg.samsung.com>
Not sure if any exists, if they do let's see if a user files a bug report
first so we know what to do with those (they're most likely buttonsets).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-By: Derek Foreman <derekf@osg.samsung.com>
Some semi-mt model touchpads have a better accuracy for slot 0 then for
slot 1 (they only have 2), so on semi-mt models only use the movement of
the touch in slot 0 for 2fg scrolling, rather then the average movement of
the 2 touches.
This fixes 2fg scrolling being choppy / jumpy in some cases.
BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=89683
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Also needed: change the touchpad scroll source test to use more separate
events. The current litest semi-mt touch implementation only moves the first
touch on every second move. With 5 movements this isn't enough to fill the
motion history and generate events, so double it to 10 so we're guaranteed to
get scroll events.
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Those touchpads presents an actual lower resolution that what is
advertised.
We see some jumps from the cursor due to the big steps in X and Y
when we are receiving data.
For instance, we receive:
E: 13.471932 0003 0000 16366 # EV_ABS / ABS_X 16366
E: 13.471932 0003 0001 9591 # EV_ABS / ABS_Y 9591
E: 13.471932 0000 0000 0000 # ------------ SYN_REPORT (0) ----------
E: 13.479924 0003 0000 16316 # EV_ABS / ABS_X 16316
E: 13.479924 0003 0001 9491 # EV_ABS / ABS_Y 9491
E: 13.479924 0000 0000 0000 # ------------ SYN_REPORT (0) ----------
E: 13.487939 0003 0000 16271 # EV_ABS / ABS_X 16271
E: 13.487939 0003 0001 9403 # EV_ABS / ABS_Y 9403
E: 13.487939 0000 0000 0000 # ------------ SYN_REPORT (0) ----------
-> jumps of ~50 in X in each report, and ~100 for Y.
Apply a factor to minimize those jumps at low speed, and try
keeping the same feeling as regular touchpads at high speed.
It still feels slower but it is usable at least
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
On the Logitech T650 it's quite easy to trigger a click without touching the
surface. For software buttons we discard those clicks because we can't tell
where the finger is to decide on left vs right click.
It takes effort to trigger a click with two fingers without triggering a touch
though, so in clickfinger mode post a click without touches as single-finger
click.
https://bugs.freedesktop.org/show_bug.cgi?id=90150
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Split into button and area, the latter of which is the bitmask of which area
we're in. No functional changes.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Some devices need specific configuration or different defaults.
Push that into udev rules and a hwdb file, that's where detection is the
easiest. The LIBINPUT_MODEL_ prefix is used to determine some type of device
model. Note that this property is a private API and subject to change at
any time without notice.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Similar to libinput_device_pointer_has_button(), this function returns whether
a given device has a specific keycode.
This enables a caller to determine if the device is really a keyboard (check
for KEY_A-KEY_Z) or just a media key device (check for KEY_PLAY or somesuch),
depending on the context required.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
There is quite a wide spread in the delta events generated by trackpoints,
some generate deltas of 1-2 under normal use, while others generate deltas
from 1-20.
It is desirable to normalize trackpoint deltas just like we are normalizing
mouse deltas to 1000 dpi, so as to give different model laptops aprox.
the same trackpoint cursor speed ootb.
Recent versions of udev + hwdb set a POINTINGSTICK_CONST_ACCEL udev property
which can be used to adjust trackpoints which are too slow / too fast
ootb, this commit implements support for that property.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This is sort-of legitimate, so simply disable the axes and continue.
Any real axis we require to have a real range.
https://bugs.freedesktop.org/show_bug.cgi?id=90090
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Once we have a doubletap, enter a loop in the state machine where we can tap
multiple times and either get a multi-click or a multi-click drag-and-drop.
The sequence down/up down/up down/up produces a triple-click. The sequence
down/up down/up down/up down produces a triple-click with a button down for
dragging. Yes, that glorious octuple-tap-and-drag, it is now possible. World
domination has been achieved, thank you for playing.
We don't know when we finish tapping now, so add a timeout to send the last
click event once the finger has been released for the last time. This
guarantees that the timestamp of the last button down is later than the
last release. This avoids the bug fixed in synaptics commit
xf86-input-synaptics-1.8.0-21-g37d34f0 (some application don't handle
doubletap correctly without the timestamps).
This works for double-tap immediately, for multi-tap we need to remember the
timestamp of the first press event and use it for the release event so that
there's a forced gap between the release and the second press.
https://bugs.freedesktop.org/show_bug.cgi?id=89511
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
If the touchpad has left/right physical buttons but no middle button, force
middle button emulation - without a config option, it's always on.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Devices that have left and right buttons but no middle button get middle
button emulation (without config). Devices that have a middle button too get
a config option but default to off. Most mice have LMR set as buttons,
regardless whether they have a middle button.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This is just the required framework, it's not hooked up to anything just yet.
Hooking it up comes as separate commit to better detail why/when a device
supports emulation.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Adds the following quartett of functions to enable/disable middle mouse button
emulation on a device:
libinput_device_config_middle_emulation_is_available()
libinput_device_config_middle_emulation_set_enabled()
libinput_device_config_middle_emulation_get_enabled()
libinput_device_config_middle_emulation_get_default_enabled()
This patch only adds the config framework, it is not hooked up to anything
yet.
Note: like other features this is merely the config option, some devices will
provide middle button emulation without exposing it as configuration. i.e. the
return value of libinput_device_config_middle_emulation_is_available() only
tells you whether you can _configure_ middle button emulation.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
