Instead of a hard assert if we fail to find the mode group for the given
ring/dial/strip let's just log an error and discard the event.
I'm not sure this assert can be triggered in the current code base but
if it can an error message is going to be more useful to the user than
an assert.
(cherry picked from commit 2562c24f95)
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1309>
This looks like a copy-and-paste error. In practice it was harmless on
64-bit systems because evdev_event happens to be 64 bits long, but on
32-bit systems it would allocate too little memory.
Found by GCC 15 with _FORTIFY_SOURCE=3 on ia32.
(cherry picked from commit 47d4c563f4)
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1309>
In commit 9a9466b6a9 ("evdev: discard any frame with EV_SYN SYN_REPORT 1")
all frames with a SYN_REPORT 1 were discarded on the assumption of those
being key repeat frames. Unfortunately the kernel uses the same sequence
to simply mark *any* injected/emulated event, regardless of the cause. Key repeat
events are merely the most numerous ones but as shown in commit
7140f13d82 ("evdev: track KEY_SYSRQ frames and pass them even as repeat frames")
Alt+PrintScreen is also an emulated event.
Issue #1165 details another case: keyboards with n-key rollover can
exceed the kernel-internal event buffer, typically 8 events for devices
without EV_REL/EV_ABS. Those events will be broken up by the kernel into
multiple frames - once nevents == buffer_size the current state is
flushed as SYN_REPORT 1 frame. Then, if any more events are pending
those are flushed as SYN_REPORT 0 frame. In the case of exactly 8
events, the second frame is never present, so we cannot easily detect if
another one is coming.
Issue #1145 only affects us in the touchpad code, the rest of the
backends seem to (so far) be fine. So let's move the discarding of
SYN_REPORT 1 to the touchpad backend and leave the rest of the code
as-is.
This effectively
Reverts: 7140f13d82 ("evdev: track KEY_SYSRQ frames and pass them even as repeat frames")
Reverts: 9a9466b6a9 ("evdev: discard any frame with EV_SYN SYN_REPORT 1")
Closes#1165
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1282>
config.set10 is much more convenient and nicer to read but can provide
false positive if the value is 0 and #ifdef is used instead of #if. So
let's switch everything to use #ifdef instead, that way we cannot get
false positives if the value is unset.
Closes#1162
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1277>
Make sure we drop any potential high-resolution wheel events from a
device that isn't supposed to have them.
Where the device's axes were disabled due to a quirk, re-enabling the
axes means the device's events won't be filtered anymore. Our wheel
emulation plugin thus emulates high-resolution wheel events in addition
to the hardware events.
Fix this by simply filtering out any high-resolution wheel events on any
device that uses this plugin.
Closes#1160
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1279>
Same approach as chosen in libinput-record, this leaves the F1-F10 out
but otherwise prints every other "normal" key (including modifiers) as
KEY_A.
In the future we may need some more specific approach but for now this
will do. For the use-cases where we do need some specific approach,
libinput record and libinput debug-events will still show the full
keycode on request anyway.
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1276>
Mixup of #if vs #ifdef caused this condition to always be treated as
true, resulting in leakage of key codes to the logs if the libinput log
level was set to debug.
Fixes: 7137eb9702 ("plugin: add ability to queue more events in the evdev_frame callback")
Closes#1163
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1276>
The plugin system prints all events before they're passed to the plugin
anyway and the special evdev plugin does not do anything but pass it on.
We can thus assume that the events passed to libinput are the same as
the ones passed to this plugin.
Let's do that and adjust the print format to be closer to what
evdev_log_debug() would print.
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1276>
This is a leftover from the Lua plugin branch where the question of
whether to have public plugins before or after internal plugins is a
valid one. We don't have public plugins here, so let's remove this
fixme.
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1269>
Fixes a regression causing missing scroll events on devices where the
kernel only sets REL_WHEEL/REL_HWHEEL but not the corresponding
hires events. On those devices we would get the legacy axis events but
no longer the new ones.
The mouse wheel plugin will correctly emulate missing hires events
but it doesn't attach to devices where the hires bit is never set.
This plugin can be very simple - since we know we enabled the code on
this device we don't need to keep any extra state around. If our frame
handler is called for this device we want to add the hi-res events.
Theoretically this breaks if the device has only one hi-res axis enabled
but not the other one (i.e. REL_WHEEL_HI_RES but only REL_HWHEEL) but
that's too theoretical to worry about.
Closes#1156
Fixes: 31854a829a ("plugin: only register the wheel plugin on devices that have a wheel")
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1268>
For mice with multipliers 30/120 and 40/120 nothing would change
as both will still cross threshold only after 2nd event.
But for MX Master 3 (and maybe others) that makes scroll beginning
a bit responsive, without jumping straight to 64/120 or 72/120.
Now events being emitted at 16+16+16 or 24+24 without significant
side-effects ("twitching" when resting finger on the wheel,
sudden scroll events when pressing middle button, etc). See !1262 for
some background.
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1267>
The MX Master 3 is difficult, its wheel events are all over the place
and heuristics are tricky to determine. The previous plugin behavior
was seemingly sufficient for the MX Master but not for other devices.
Restore the old behavior if the quirk is set for a device by adding a
fourth state ALWAYS_ACCUMULATE. In this state the min movement is never
updated from the original threshold, causing any wheel motion to
accumulate.
Ref: ca6b82841c ("plugin/wheel: tighten the wheel debouncing code")
Ref: bb05e0d1b5 ("plugin/wheel: don't accumulate for low HID resolution multipliers")
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1262>
Accumulating (and partially discarding) scroll wheel events serves to
debounce a scroll wheel and provide for more fluid scrolling where
scroll wheels can send events going in the wrong direction.
This is unlikely to happen on devices with low resolution multipliers
(i.e. where some significant physical movement by the wheel is required
to trigger events) so let's make it contingent on devices more likely to
have flaky wheels.
The magic threshold picked is 30 (HID resolution multiplier of 4) as a
guess. The resolution multiplier isn't accessible in userspace so we
have to heuristically get to it - typical interaction with a mouse will
have that value set within the first two, three scroll wheel events
though.
Closes#1150
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1261>
The previous approach had a fixed threshold of 60 (half a detent)
below which scroll events were ignored. Reduce this threshold to have a
threshold of one device-specific delta. That threshold adjusts over time
to the device's individual minimum delta so after a few scroll event it
should settle on the lowest value possible.
The result is that fine-grained scrolling is possible on those devices
and only the very first scroll event is held back/swallowed, two events
in the same direction release scrolling.
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1258>
When the kernel inserts a repeat frame it does that with EV_KEY code
value of 2 and the frame itself is a SYN_REPORT with value 1. Nothing in
libinput wants those repeat values, so let's discard them here before
anything tries to process them.
This inserted frame causes bugs on touchpads with EV_REP (rare enough)
because while the key event itself is dropped, the timestamp of the
frame still causes the next real frame's delta time to shorten,
resulting in wrong acceleration values.
Closes#1149
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1255>
mtdev is used only for MT Protocol A device of which there are quite
few. But that protocol is also a perfect example for event frames in ->
different event frame out so let's move this into the plugin pipeline.
Because the plugin doesn't really have full access to the device's
internals we set up mtdev base on the libevdev information rather than
just handing it the fd and letting it extract the right info.
A minor functionality change: previously mtdev-backed devices returned
zero on libinput_device_touch_get_touch_count(). Now it is hardcoded to
10 - the number of callers that care about this is likely near zero.
Because it's now neatly factored out into a plugin we can also make
mtdev no longer a strict requirement.
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1245>
No functional changes, all the actual interfaces now simply loop through
the frame instead of expecting the dispatcher to do so.
The mtdev code changed slightly since we can shortcut in the non-mtdev
case.
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1245>
Touchpad devices are pointers too in libinput but they don't usually
have wheels. Let's check for REL_WHEEL in device_new *and* then again
for the actual pointer capability in device_added.
Fixes: d1800a76fe ("evdev: Handle scroll wheel with a plugin")
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1251>
