This has never been supported through the stack. No device ever had the
required MOUSE_WHEEL_TILT_VERTICAL/HORIZONTAL udev property set, so
libinput never set the right axis source. Neither weston nor mutter
added the code for it. Even if we added wheel tilt for devices now, it
would break those devices. And the benefit we get from having those
separate is miniscule at best.
So let's do the long-term thing and just deprecate this axis source.
The wheel tilt mouse test device remains in the test suite, with the
udev properties set just to verify that we do indeed ignore those now.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Old-style field initialisation ignores the 64-bit time_t change in
Linux UAPI, which causes the structure to be incompletely initialised
on 32-bit systems with the 64-bit time_t kernel headers.
This patch uses the input_event_init helper from the original 64-bit
time_t enablement patch.
Signed-off-by: A. Wilcox <AWilcox@Wilcox-Tech.com>
Fixes: 5dc1a7ebd ("Adjust for 64bit time_t for 32bit architectures")
See-Also: libinput/libinput!346
Scroll button locking is an accessibility feature. When enabled, the scroll
button does not need to be held down, the first click holds it logically down,
to be released on the second click of that same button.
This is implemented as simple event filter, so we still get the same behavior
from the emulated logical button, i.e. a physical double click results in a
single logical click of that button provided no scrolling was triggered.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Any touch down event will also provide motion data, but we must not send a
motion event for those in the same frame as the down event.
Fixes#375
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Some versions [1] of the Lenovo ThinkPad Compact USB Keyboard with TrackPoint USB
have the pointing stick on an event node that has keys but is not a regular
keyboard. Thus the stick falls through the cracks and gets disabled on tablet
mode switch. Instead of adding more hacks let's do this properly: tag the
pointing stick as external and have the code in place to deal with that.
[1] This may be caused by recent kernel changes
Fixes#291
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Running libinput-test-suite with -fsanitize=undefined highlights the two
following errors. Force C to realize we want an unsigned result by making
the '1' literal unsigned.
../src/evdev-fallback.c:314:22 runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
../src/evdev-fallback.c:377:24 runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
v2: use bit() instead of manual shift 1U<<1
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
When the touch arbitration is reset to ARBITRATION_NOT_ACTIVE, the proximity
timer is set for 90ms to avoid erroneous touches (see 2a378beab for the
reason).
If the device is removed within those 90ms, the timer is never cancelled,
leading to an assert on cleanup.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
If the tilt angle on tip down is not 0 set the touch arbitration to a
rectangle around the assumed position of the hand. This assumed position is
right of the tip for a rightwards tilt and left of the tip for a leftwards
tilt (i.e. left-handed mode). The rectangle is 200x200mm with a 20x50mm
NW of the tip or NE for left-handed. In other words, if the period below is
the tip, the rectangle looks like this:
+-----------+ +-----------+
| . | <- for rightwards tilt | . |
| | | |
| | | |
| | for leftwards tilt -> | |
+-----------+ +-----------+
Touches within that rectangle are canceled, new touches are ignored. As the
tip moves around the rectangle is updated but touches are only cancelled on
the original tip down. While the tip is down, new touches are ignored in the
exclusion area but pre-existing touches are not cancelled.
This is currently only implemented in the fallback interface, i.e. it will
only work for Cintiqs.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This enables us to specify the location that needs to be arbitrated, rather
than just disabling the whole device altogether. This patch just adds the
hooks, no implementation.
This is internal API only, one backend can specify an area in mm which gets
converted to device coordinates in the target device and arbitrated there.
Right now, everything simply passes NULL.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
If we don't have tool-based palm detection, make sure our touch is labelled as
"not palm" during touch down. Otherwise that slot remains on palm forever if
it gets tagged as palm through some other means.
This currently has no effect, nothing in the code would label the touch as
palm. This is prep work for better touch arbitration.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This enables us to change the types of touch arbitration, with the focus on
allowing location-based touch arbitration as well as the more generic "disable
everything".
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
When a hand is resting on a pen+touch device, lifting the hand may remove the
stylus from proximity before the hand leaves the surface. If the kernel
performs touch arbitration, this triggers a touch down on proximity out,
followed by a touch up immediately after when the hand stops touching.
This can cause ghost touch events. Prevent this by using a timer-based
arbitration toggle.
Same as 2a378beab0 but for the fallback
interface.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
An emulated button is recorded as BTN_MIDDLE in the key down mask. If the
device is removed in that state, the BTN_MIDDLE event processed triggers
an assertion when we try to send out the event twice.
Fixes#201
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
When we disable the touch device, any existing touches should be cancelled,
not just released.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Anything that merely requires a once-off check during initialization can just
use the quirks directly, no need to copy them over to the model flags.
Fixes#146
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
We already had a check to only pair trackpoints and internal keyboards
but for the ThinkPad Compact Bluetooth Keyboard with TrackPoint that isn't
sufficient - it's an external keyboard that contains a trackpoint. Explicitly
ignore external keyboard, we never want to shut those down in tablet mode
anyway.
Fixes#119
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This used to do a lot more but now it can be handled as simple switch
statement. Bonus: we get to log a bug if we ever get here in NONE state.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
destroy isn't called until the last libinput_device_unref(), so we may trigger
a debounce timer after the device was removed. The same fix is neded for the
touchpad interface.
Fixes https://gitlab.freedesktop.org/libinput/libinput/issues/72
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This removes the artificial 3 keyboard limit. If you have more internal
keyboards than that, something is wrong in your setup but that shouldn't stop
us from working. Or more specificially: this can happen easily when running
tests so let's not fail the test suite because we created a few hundred
keyboards.
We'll still throw out a log message though.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This removes the artificial 3 keyboard limit. If you have more internal
keyboards than that, something is wrong in your setup but that shouldn't stop
us from working. Or more specificially: this can happen easily when running
tests so let's not fail the test suite because we created a few hundred
keyboards.
We'll still throw out a log message though.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Instead of a scroll wheel these mice feature trackpoint-like sticks which
generate a huge amount of scroll events that need to be handled differently
than scroll wheel events.
Signed-off-by: Peter Ganzhorn <peter.ganzhorn@gmail.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
When the X1 Yoga is in tablet mode, one capacitative touch button (windows
key, sends KEY_LEFTMETA) and two side volume buttons are accessible on the
front. The key event comes through the internal keyboard that we disabled in
tablet mode so it stops working.
Luckily the Yoga physically disables the "main" keyboard when in tablet mode,
so all we have to do is skip our code to disable the keyboard and the keys are
working again.
https://bugs.freedesktop.org/show_bug.cgi?id=103749
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The hysteresis-returned point always differs from the current point, even if
the hysteresis kicks in. We need to compare to the hysteresis center.
And the returned point is only the new center if we exceed the margin,
otherwise the center stays as-is.
The touch_fuzz() test only succeeded for this because for the values we were
introducing jitter by, the kernel filtered out all the actual movement so
these paths weren't hit.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This changes the hysteresis region to an ellipse (usually a circle), where
previously it was a rectangle (usually square).
Using an ellipse means the algorithm is no longer more sensitive in some
directions than others. It is now omnidirectional, which solves a few
problems:
* Moving a finger in small circles now creates circles, not squares.
* Moving a finger in a curve no longer snaps the cursor to vertical
or horizontal lines. The cursor now follows a similar curve to the
finger.
https://bugs.freedesktop.org/page.cgi?id=splinter.html&bug=105306
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Commit db3b6fe5f7 "fallback: change to handle the state at EV_SYN time"
introduced regressions for two types of event sequences.
One is a kernel bug - some devices/drivers like the asus-wireless send a key
press + release within the same event frame which now cancels out and
disappears into the ether. This should be fixed in the kernel drivers but
there appear to be enough of them that we can't just pretend it's an outlier.
The second issue is a libinput bug. If we get two key events in the same frame
(e.g. shift + A) we update the state correctly but the events are sent in the
order of the event codes. KEY_A sorts before KEY_LEFTSHIFT and our shift + A
becomes A + shift.
Fix this by treating key events as before db3b6fe5f7 - by sending them out
as we get them.
https://bugs.freedesktop.org/show_bug.cgi?id=104030
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The current debouncing code monitors events and switches on when events are
too close together. From then on, any event can be delayed.
Vicente Bergas provided an algorithm that avoids most of these delays:
on a button state change we now forward the change without delay but start a
timer. If the button changes state during that timer, the changes are
ignored. On timer expiry, events are sent to match the hardware state
with the client's view of the device. This is only done if needed.
Thus, a press-release sequence of: PRP sends a single press event, a sequence of
PRPR sends press and then the release at the end of the timeout. The timeout
is short enough that the delay should not be noticeable.
This new mode is called the 'bounce' mode. The old mode is now referred to as
'spurious' mode and only covers the case of a button held down that loses
contact. It works as before, monitoring a button for these spurious contact
losses and switching on. When on, button release events are delayed as before.
The whole button debouncing moves to a state machine which makes debugging a
lot easier. See the accompanying SVG for the diagram.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The previous approach was to remember the last event and flush it at the right
time. The new approach is to update the device state during the frame and send
out the events at EV_SYN time.
This gives us two advantages: we are not dependent on the kernel order of how
events come in and we can process events depending on other events in the same
frame. This will come in handy later for button debouncing.
This is also the approach we have in the touchpad and tablet backends.
Two FIXMEs are left in place, the button debouncing code and the lid switch
code. Both need to be handled in future patches.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Once the lid is closed, the keyboard event listener is set up to open the lid
for us on keyboard events. With the right sequence, we can trigger the
listener to be added to the list multiple times, triggering an assert in the
list test code (or an infinite loop in the 1.8 branch).
Conditions:
* SW_LID value 1 - sets up the keyboard listener
* keyboard event - sets lid_is_closed to false
* SW_LID value 0 - is ignored because we're already open
* SW_LID value 1 - sets up the keyboard listener again
https://bugs.freedesktop.org/show_bug.cgi?id=103298
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Because on some devices the keyboard is where the fingers are holding the
device when in tablet mode.
https://bugs.freedesktop.org/show_bug.cgi?id=102729
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Split out the fallback-specific device handling from the more generic
evdev-specific handling (which is supposed to be available for all devices).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
