If a key is still down when the tablet mode switch goes on, make sure we
release the key before the switch goes in effect.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Previously we only applied pressure offset handling for tablets that
supported ABS_DISTANCE. Detecting a pressure offset when the tool
doesn't actually touch the surface is easy after all.
But tablets without distance handling may also have a pressure offset,
so let's try to detect this. This is obviously harder since the pen will
always touch the tablet's surface whenever it is in proximity and thus
will always have *some* pressure applied to it.
The process here is to merely observe the minimum pressure value during
the first two strokes of the pen. On the third prox in, that minimum
pressure value is taken as the offset. If the pressure drops below the
offset, the offset is adjusted downwards [1] so over time we'll
get closer to the pen's real offset.
[1] this is already done for distance tablets too
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Ensure that if we do get pressure < offset that that offset is reduced
to the current pressure value.
The implementation for this is arguably buggy, reducing the pressure
means we get a tip up event since we now reach 0% of pressure. Arguably
we should enforce the tip staying down and releasing it later but since
this should typically never happen more than once per tool per context
and working around this is a lot of effort, we live with it.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Makes the code a bit easier to read. Adds precision to some tests,
slightly loosens precision in some other tests but that shouldn't matter
here.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Swap any input for both x/y and default to a calibration matrix that
swaps it back. In theory, that device will then behave as every other
device.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
All other motion/touch/... coords are already doubles so let's follow
suite here. And passing a pointer into the custom handlers
means we can modify x/y slightly and return false, leaving the rest up
to the generic event handling code.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
For a device used upside-down, make sure the wheels correspond to the
new physical directions. There's a grace range of 20 degrees either way
since that seems like it makes sense.
For 90 degree rotation (or 270 degree) the wheel is left as-is, the
heuristics to guess what angle we want in this case is not clear enough.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Some touchpads, notably those on the Dell XPS 15 9500, are prone to registering
touchpad clicks when the case is sufficiently flexed. Ignore these by
disregarding any clicks that are registered without touchpad touch.
Signed-off-by: Rob Glossop <robgssp@gmail.com>
This hurts more than it helps, and users complain of dead trackpad
edges. Apple touchpads have fairly sophisticated internal palm rejection
algorithms going back many years, so let's just disable this one on
everything Apple.
Related to: #433 (need to figure out what other hardware may need this)
Signed-off-by: Hector Martin <marcan@marcan.st>
Right now for touch arbitration to work, we require the device group to
be the same (i.e. they're hanging off the same physical bus). That's not
always the case and statistically we have a lot more devices that have
a built-in tablet + touchscreen than we have Intuos-like external
tablets.
So let's default to the more common case - enabling arbitration with the
first touchscreen/external touchpad we find. If a subsequent device is
"better", swap it out. Right now, the only heuristic we have here is the
device group check but in the future we could get more precise.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The key_count array for buttons records the logical button sent to the
client - for left-handed configurations that means a BTN_LEFT is
recorded as BTN_RIGHT.
When the device is suspended and we are releasing all keys we must thus
release the button code as-is without trying to map it again.
Fixes#881
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
A whitespace fix, moving a check-related #define closer to the #include
and change a test that doesn't need a device to litest_add_no_device().
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Now that we're Python ConfigParser compatible (again), we can check our
quirks file for things our actual parser doesn't care about, but that we
should honour. Right now that means that bustypes and vid/pid matches are
all spelled consistently.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This is confusing without any explanation - the first set of touches is
within the edge zone, the second set of touches is explicitly within the
software button area but not inside the edge zone. Let's add comments so
the intention is clear.
Same-ish for the clickfinger test.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This way we can rely on physical coords on this screen being actually
meaningful. Not currently in use but future tests will use this touch
device as generic screen.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Adds a dedicated scroll movement type to the custom acceleration profile.
Supported by physical mouse and touchpad.
Other profiles remain the same by using the same unaccelerated filter for the scroll filter.
Signed-off-by: Yinon Burgansky <51504-Yinon@users.noreply.gitlab.freedesktop.org>
Adds min and max size limit for custom acceleration function's points.
Adds tests to make sure validation works properly.
Signed-off-by: Yinon Burgansky <51504-Yinon@users.noreply.gitlab.freedesktop.org>
The custom acceleration profile allow the user to define custom
acceleration functions for each movement type per device, giving
full control over accelerations behavior at different speeds.
This commit introduces 2 movement types which corresponds to the
2 profiles currently in use by libinput.
regular filter is Motion type.
constant filter is Fallback type.
This allows possible expansion of new movement types for the
different devices.
The custom pointer acceleration profile gives the user full control over the
acceleration behavior at different speeds.
The user needs to provide a custom acceleration function f(x) where
the x-axis is the device speed and the y-axis is the pointer speed.
The user should take into account the native device dpi and screen dpi in
order to achieve the desired behavior/feel of the acceleration.
The custom acceleration function is defined using n points which are spaced
uniformly along the x-axis, starting from 0 and continuing in constant steps.
There by the points defining the custom function are:
(0 * step, f[0]), (1 * step, f[1]), ..., ((n-1) * step, f[n-1])
where f is a list of n unitless values defining the acceleration
factor for each velocity.
When a velocity value does not lie exactly on those points, a linear
interpolation of the two closest points will be calculated.
When a velocity value is greater than the max point defined, a linear
extrapolation of the two biggest points will be calculated.
Signed-off-by: Yinon Burgansky <51504-Yinon@users.noreply.gitlab.freedesktop.org>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Previously we restricted rotation to trackballs only and to multiples
of 90 degrees. Update rotation allow angles other than multiples of 90.
Also enable rotation on all mice. The only devices without rotation
are now pointing sticks.
Fixes#827
Signed-off-by: Lucas Zampieri <lzampier@redhat.com>
This switches the quirk from AttrEventCodeEnable/Disable to just
AttrEventCode with a +/- prefix for each entry.
This switches the quirk from AttrInputPropEnable/Disable to just
AttrInputProp with a +/- prefix for each entry.
Previously, both event codes and input props would only apply the
last-matching section entry for a device. Furthermore, an earlier Disable entry
would take precedence over a later Enable entry. For example, a set of
sections with these lines *should* enable left, right and middle:
[first]
AttrEventCodeEnable=BTN_LEFT;BTN_RIGHT;BTN_MIDDLE
[second]
AttrEventCodeDisable=BTN_RIGHT
[third]
AttrEventCodeEnable=BTN_LEFT;BTN_RIGHT;
Alas: the first line was effectively ignored (quirks only returned the
last-matching one, i.e. the one from "third"). And due to implementation
details in evdev.c, the Disable attribute was processed after Enable,
i.e. the device was enabled for left + right and then disabled for
right. As a result, the device only had BTN_LEFT enabled.
Fix this by changing the attribute to carry both enable/disable
information and merging the commands together.
Internally, all quirks matching a device are simply ref'd into an array
in the struct quirks. The applied value is simply the last entry in the
array corresponding to our quirk.
For AttrEventCode and AttrInputProp instead do this:
- switch them to a tuple with the code as first entry and a boolean
enable/disable as second entry
- if the struct quirk already has an entry for either, append the more
recent one to the existing entry (instead of creating a new entry in
the array). This way we have all entries that match and in-order of
precedence - i.e. we can process them left-to-right to end up
with the right state.
Fixes: https://gitlab.freedesktop.org/libinput/libinput/-/issues/821
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
A user was experiencing issues with their hand being recognized as
touch input above the stylus tip.
Since touch above the stylus should be rare, increase the touch
arbitration rectangle height by 50mm.
Fix: https://gitlab.freedesktop.org/libinput/libinput/-/issues/809
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
When compiling with Sparse enabled:
$ CC=cgcc meson builddir
Fix warnings about variables that should be made static.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Fix the warnings generated:
[232/243] Compiling C object libinput-test-suite.p/test_test-pad.c.o
../test/test-pad.c:211:3: warning: variable 'count' is uninitialized
when used here [-Wuninitialized]
count++;
^~~~~
../test/test-pad.c:261:3: warning: variable 'count' is uninitialized
when used here [-Wuninitialized]
count++;
^~~~~
When building with Clang v15 and without libwacom:
$ CC=clang CXX=clang++ meson builddir -Dlibwacom=false
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Fix the warning generated:
[129/243] Compiling C object libinput-test-suite.p/test_test-touchpad.c.o
../test/test-touchpad.c:2679:1: warning: unused
function 'touchpad_has_rotation' [-Wunused-function]
touchpad_has_rotation(struct libevdev *evdev)
^
When building with Clang v15 and without libwacom:
$ CC=clang CXX=clang++ meson builddir -Dlibwacom=false
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Fix warning building with Clang v15:
../test/test-pad.c:334:15: warning: variable 'expected_number'
set but not used [-Wunused-but-set-variable]
unsigned int expected_number = 0;
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
The escape key can be used to cancel a drag and drop action in some
desktop environments. However, it triggers disable-while-typing, ending
the drag and drop action rather than cancelling it.
Add it to the tp_key_ignore_for_dwt() set to avoid it.
Since I'm here, add the asterisk key as it is the only numpad key not
ignored by tp_key_ignore_for_dwt().
Fix: https://gitlab.freedesktop.org/libinput/libinput/-/issues/820 # [1]
Suggested-by: satrmb <10471-satrmb@users.noreply.gitlab.freedesktop.org>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
The ck_assert_ptr_null() function is not available in the version of
the check library included in 20.04 LTS Focal (0.10.0).
Use ck_assert_ptr_eq() to avoid compilation errors.
Fixes: eeae8906db ("util: return the number of elements from strv_from_string")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
When the libwacom build option is set to false the compiler throws
these warnings:
../udev/libinput-device-group.c:95:1: warning: ‘wacom_handle_ekr’ defined but not used [-Wunused-function]
95 | wacom_handle_ekr(struct udev_device *device,
| ^~~~~~~~~~~~~~~~
[205/237] Compiling C object 'libinput-test-suite@exe/test_test-tablet.c.o'.
../test/test-tablet.c:5440:1: warning: ‘verify_left_handed_touch_sequence’ defined but not used [-Wunused-function]
5440 | verify_left_handed_touch_sequence(struct litest_device *finger,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../test/test-tablet.c:5385:1: warning: ‘verify_left_handed_tablet_sequence’ defined but not used [-Wunused-function]
5385 | verify_left_handed_tablet_sequence(struct litest_device *tablet,
# | ^~~~~~~~~~~~~~~~
# | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Add the required guards to fix the warnings.
Fix#791.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
The `debounce_bounce_high_delay` and `debounce_spurious_trigger_high_delay`
tests are failing with annoying frequency in valgrind, but that is
entirely due to valgrind being too slow for the tight timing reqirements
of these tests. Skipping them in valgrind has next to no potential to hide
memory leaks because the code paths leading to success are also covered by
other tests which are less picky about timing, and the CI test suite run
without valgrind still tests for their success.
Signed-off-by: satrmb <10471-satrmb@users.noreply.gitlab.freedesktop.org>
These two tests were identical except for the WHEEL/HWHEEL
differentiator, let's make this into a ranged test instead.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The IBM/Lenovo Scrollpoint mouse features a trackpoint-like stick that
sends a great amount of scroll deltas.
In order to handle the device, a quirk is in place to normalize the
scroll events as they were relative motion.
However, when high-resolution scroll was implemented, we started
normalizing the hi-res events instead of the lo-res events by mistake.
Fix the quirk by normalizing the right deltas.
Fixes: 6bb02aaf30 ("High-resolution scroll wheel support")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Tested-by: Peter Ganzhorn <peter.ganzhorn@gmail.com>
These tests gave us false positives for devices without a REL_WHEEL or
REL_HWHEEL because one of the helper functions papered over missing
events.
We have two tests here, one for horizontal, one for vertical but they
mixed WHEEL and HWHEEL in both tests. Fix this by splitting them
properly, so each test only checks that axis.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tools default to 1% lower threshold (tip up) and 5% upper threshold (tip
down). But our distance vs pressure exclusion would reset the distance
for *any* pressure value, regardless how low that value was and how high
distance was in comparison.
A very low pressure value of less than 1% would then result in a
normalized pressure of 0, so we'd effectively just reset the distance to
zero and do nothing with the pressure. This can cause distance jumps
when the tool arbitrarily sends low pressure values while hovering as
seen in https://github.com/libsdl-org/SDL/pull/5481#issuecomment-1118969064
Commit 61bdc05fb0 from Dec 2017
"tablet: set the tip-up pressure threshold to 1%"
was presumably to address this but no longer (?) works.
Fix this by addressing multiple issues at the same time:
- anything under that 1% threshold is now considered as zero pressure
and any distance value is kept as-is. Once pressure reaches 1%,
distance is always zero.
- axis normalization is now from 1% to 100% (previously: upper threshold
to 100%). So a tip down event should always have ~4% pressure and we
may get tablet motion events with nonzero pressure before the tip down
event.
From memory, this was always intended anyway since a tip event should
require some significant pressure, maybe too high compared to e.g.
pressure-sensitive painting
- where a tablet has an offset, add the same 1%/5% thresholds, on top of
that offset. And keep adjusting those thresholds as we change the
offset. Assuming that the offset is the absolute minimum a worn-out
pen can reach, this gives us the same behaviour as a new pen. The
calculation here uses a simple approach so the actual range is
slightly larger than 5% but it'll do.
Previously, the lower threshold for an offset pen was the axis minimum
but that can never be reached. So there was probably an undiscovered
bug in there.
And fix a bunch of comments that were either wrong, confusing or
incomplete, e.g. the pressure thresholds were already in device
coordinates.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Because --filter-test does substring matching it's easier to have it
with a unique name rather than one that is a prefix of another.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This fixes a format string vulnerabilty.
evdev_log_message() composes a format string consisting of a fixed
prefix (including the rendered device name) and the passed-in format
buffer. This format string is then passed with the arguments to the
actual log handler, which usually and eventually ends up being printf.
If the device name contains a printf-style format directive, these ended
up in the format string and thus get interpreted correctly, e.g. for a
device "Foo%sBar" the log message vs printf invocation ends up being:
evdev_log_message(device, "some message %s", "some argument");
printf("event9 - Foo%sBar: some message %s", "some argument");
This can enable an attacker to execute malicious code with the
privileges of the process using libinput.
To exploit this, an attacker needs to be able to create a kernel device
with a malicious name, e.g. through /dev/uinput or a Bluetooth device.
To fix this, convert any potential format directives in the device name
by duplicating percentages.
Pre-rendering the device to avoid the issue altogether would be nicer
but the current log level hooks do not easily allow for this. The device
name is the only user-controlled part of the format string.
A second potential issue is the sysname of the device which is also
sanitized.
This issue was found by Albin Eldstål-Ahrens and Benjamin Svensson from
Assured AB, and independently by Lukas Lamster.
Fixes#752
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Certain tests that make use of verify_left_handed_touch_motion can fail
depending on how quick they are executed, specially when using Valgrind.
Instead of ignoring the hold end event, use the existing mechanism to
disable hold gestures where we are not interested in them.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
All cases we have in our code base have an otherwise unused variable to
loop through the array. Let's auto-declare this as part of the loop.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Add option to control whether the touchpad should be disabled while the
trackpoint is in use.
Fix#731
Signed-off-by: pudiva chip líquida <pudiva@skylittlesystem.org>
Since cd4f2f32b5 ("fallback: disable mouse scroll wheel while middle
button is pressed") the mouse wheel is inhibited while the mouse wheel
is pressed.
The original intention of this feature was to avoid unintended scroll
while pressing the scroll wheel. However, now that high-resolution
scroll is fully integrated in libinput we can improve this feature and
filter unintended scroll (below half a detent) and allow it when it is
intended (over half a detent).
Remove the "WHEEL_STATE_PRESSED" state from the wheel state machine and
let the general heuristics handle this case.
Also, remove the specific tests for this feature as now it is covered
by the general test cases.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
