This moves the thumb state logging directly into that helper function too.
Extracted from Matt Mayfield's thumb detection patches.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Currently the same as tp_touch_active() but this will change.
No functional changes.
Extracted from Matt Mayfield's thumb detection patches.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The previously 'scroll'-named timeout is also used for swipe, so let's rename
it. And the pinch one isn't used at all.
Extracted from Matt Mayfield's thumb detection patches.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Our udev callout is supposed to reset the kernel fuzz to 0 and move the value
to the LIBINPUT_FUZZ property. This is to stop the kernel from applying its
own hysteresis-like approach.
Where the kernel fuzz is nonzero, something has gone wrong with that approach.
Complain about it and set our fuzz to zero, we are in the hands of the kernel
now. If we leave our fuzz as nonzero, we'll apply our own hysteresis on top of
the kernel's and that leads to unresponsive behavior.
Fixes#313
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
We don't have a hysteresis for tablet devices, so let's leave those as-is.
This may be a slight regression in behavior compared to pre-410b157e84 now the
kernel will apply the fuzz. Let's see if anyone notices, the fuzz is usually
so tiny on tablets that it shouldn't be noticable.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
If the libwacom context failed to initialize for some reason, the database is
NULL and the refcount remains at zero. Calling unref should just work then.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This pen has random timeouts, often when a button is pressed. This causes a
forced proximity out (and the button release) and makes the whole device a
tad unusable.
Nothing we can detect by heuristics since it looks like other devices that
don't send proximity out events. And the timeout can be quite high, the
recording in #304 has over 800ms for one sequence.
Fixes#304
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Where the proximity out event is delayed by the kernel, libinput would cause
an extra proxmity in-out after the forced proximity out event.
Event sequence is basically (k: kernel, l: libinput)
k: tablet axis events
l: tablet axis events
k: nothing for $proximity timer milliseconds
l: tablet proximity out
k: proximity out event
l: proximity in event
l: proximity out event
Fixes#306
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
__builtin_popcount might not be available and in this case, a bitwise-and
can accomplish the same task.
Signed-off-by: Michael Forney <mforney@mforney.org>
__builtin_popcount might not be available on all compilers, so using
it requires a configure check and fallback implementation. In fact
on gcc without an -march flag, it gets compiled to a function call to
libgcc. However, we only need to test whether multiple bits are set,
and this can be done easily with a bitwise and.
Signed-off-by: Michael Forney <mforney@mforney.org>
We only ever set properties in the devices, so let's make that more explicit
and auto-generate the udev rule. This way we're hopefully better protected
from the various typos that hid in those rules over the years, but also be
prepared for passing the udev property key/value pairs elsewhere.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This device looks similar to a MT device on the kernel side, but it's not a
MT device and it's not quite a tablet either. It uses slots to track up to 4
totems off the same device and the only hint that it's not a MT device is that
it sends ABS_MT_TOOL_TYPE / MT_TOOL_DIAL.
udev thinks it's a touchscreen and a tablet but we currently init those
devices as touchscreen (because all wacom tablet touch devices are udev
tablets+tochscreens). So we need a quirk to hook onto this device.
And we use a completely separate dispatch implementation, because adding the
behavior to the tablet interface requires so many exceptions that it's easier
to just add a separate dispatch interface.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This is the public API only, not the internal bits, so nothing will work just
yet.
This interface addition is for the Dell Canvas Totem tool, so let's go with
the same name because options like "Rotary" are too ambiguous.
The totem is a knob that can be placed on the surface, it provides us with
location and rotation data. The touch major/minor fields are filled in by the
current totem, but they're always the same size.
The totem exports BTN_0 as well, so let's add that to the debug-events output.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
We rely on assert() too much for safety checks, let's not let the user disable
it without warning
Fixes#262
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>
No real changes for the non-tablet code, but for tablets we now keep the
libwacom datbase around. The primary motivating factor here is response time
during tests - initializing the database under valgrind took longer than the
proximity timeouts and caused random test case failures when a proximity out
was triggered before we even got to process the first event.
This is unfortunately a burden on the runtime now since we keep libwacom
around whenever a tablet is connected. Not much of an impact though, I
suspect, chances are you're running a web browser and everything pales against
that anyway.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Follow-up to 6229df184e
We must not rely on the caller to toggle the left-handed bits correctly since
they may not know which devices belong together (despite device groups). Let's
do the right thing here, if the tablet is set to left-handed, rotate the
touchpad accordingly.
Note that the left-handed setting of the tablet is left as-is
(right-handed). Until we have notifications about configuration changes, this
is the best we can do.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Follow-up to 6229df184e
We must not rely on the caller to toggle the left-handed bits correctly since
they may not know which devices belong together (despite device groups). Let's
do the right thing here, if the touchpad is set to left-handed, rotate the
tablet accordingly.
Note that the left-handed setting of the touchpad is left as-is
(right-handed). Until we have notifications about configuration changes, this
is the best we can do.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
There are tablets out there that *sometimes* send the right event sequence,
but are generally broken. So let's not disable that quirk even if we do get a
right sequence.
Affected devices: Lenovo Flex 5
Fixes#248Fixes#290
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tablets in left-handed mode are rotated, so we need to rotate the touchpad
part of them too. This doesn't affect all tablets though, some of them are
symmetrical and the left-handed mode merely changes the button order around
(some of the earlier Bamboos). So we rely on libwacom to tell us which device
must be rotated.
The rotation itself is done on the input coordinate itself as we get it. This
way any software buttons, palm zones, etc. are automatically handled by rest
of the code.
Fixes#274
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Unlike virtually everything else, the tablet tool was processed at the time
the event was read rather than when the subsequent EV_SYN came in. This causes
difficulties with tablets that send the wrong BTN_TOOL_PEN events.
Moving the tool change processing to tablet_flush() makes the injection of the
BTN_TOOL_PEN event a lot easier, simply flipping the matching bit does the
job. It also makes it easier to ignore duplicate tool updates like we've seen
in #259.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Recent Apple touchpads use a proper Bluetooth vendor ID assigned to Apple instead of the USB one,
so this code would have to check for two vendor IDs and their udev types. However, we already
have that matching done via models in quirks, so let's just use that.
Signed-off-by: Sebastian Krzyszkowiak <dos@dosowisko.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>
Don't require a quirk update, just enable this by default for all tablets. If
we get a proximity out event at the right time, the quirk is disabled for that
tablet for the rest of its lifetime. And it's virtually impossible to have a
false positive here anyway - you cannot hold the pen still enough to not
trigger events for 50ms.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
We expect the kernel to transition properly for us, e.g. BTN_TOOL_PEN goes to
0, BTN_TOOL_ERASER goes to 1. Two cases have surfaced recently where this
doesn't happen and debugging this takes time - so let's warn about it to make
it obvious.
Example 1: https://github.com/linuxwacom/libwacom/issues/70
Example 2: https://gitlab.freedesktop.org/libinput/libinput/issues/259
This is just a warning, nothing more. We should just handle that case
accordingly but that requires more effort.
Fixes#260
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
