Enable synaptics and elantech touchpads, as well as IBM/Lenovo TrackPoints
by default, instead of having users find and toggle a loader tunable.
This makes things like two finger scroll and other modern features work out
of the box with X. By enabling these settings by default, we get a better
desktop experience in X, since xserver and evdev can make use of the more
advanced synaptics and elantech features.
Reviewed by: imp, wulf, 0mp
Approved by: imp
Sponsored by: B3 Init (zeising)
Differential Revision: https://reviews.freebsd.org/D20507
Add strict checks for unused bit states in Elantech trackpoint packet
parser to filter out spurious events produces by some hardware which
are detected as trackpoint packets. See comment on r328191 for example.
Tested by: Andrey Kosachenko <andrey.kosachenko@gmail.com>
Sign bits for X and Y motion data were taken from wrong places.
PR: 238291
Reported by: Andrey Kosachenko <andrey.kosachenko@gmail.com>
Tested by: Andrey Kosachenko <andrey.kosachenko@gmail.com>
MFC after: 2 weeks
This change enables natural scrolling with two finger scroll enabled
and when user is using a trackpad (mouse and trackpoint are not affected).
Depending on trackpad model it can be activated with setting of
hw.psm.synaptics.natural_scroll or hw.psm.elantech.natural_scroll sysctl
values to 1.
Evdev protocol is not affected by this change too. Tune userland client
e.g. libinput to enable natural scrolling in that case.
Submitted by: nyan_myuji.xyz
Reviewed by: wulf
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D20447
This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.
EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).
As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions. The remainder of the patch addresses
adding appropriate includes to fix those files.
LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).
No functional change (intended). Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed. __FreeBSD_version has been bumped.
This fixes a bug where, even when hw.psm.tap_enabled=0, touchpad taps
were processed.
tap_enabled has three states: unconfigured, disabled, and enabled (-1, 0, 1).
To respect PR kern/139272, taps are ignored only when explicity disabled.
Submitted by: Ben LeMasurier <ben@crypt.ly> (initial version)
MFC after: 2 weeks
Ignoring of gesture processing when the palm is detected helps to reduce
some of the erratic pointer behavior.
This fixes regression introduced in r317814
Reported by: Ben LeMasurier <ben@crypt.ly>
MFC after: 2 weeks
Active PS/2 multiplexing is a method for attaching up to four PS/2
pointing devices to a computer. Enabling of multiplexed mode allows
commands to be directed to individual devices using routing prefixes.
Multiplexed mode reports input with each byte tagged to identify
its source. This method differs from one currently supported by psm(4)
where so called guest device (trackpoint) is attached to special
interface located on the host device (touchpad) and latter performs
guest protocol conversion to special encapsulation packet format.
At present time active PS/2 multiplexing is used in some models of
HP laptops e.g. EliteBook 8560w, 9470m. Enabling of absolute operation
mode on such touchpads is connected with following problems:
1. Touchpad's port priority is lower than trackpoint's. That blocks
information queries thus prevents touchpad detection and configuration.
2. Touchpad and trackpoint have different protocol packet sizes and
sync bytes.
As PS/2 usage is on decline only minimal possible set of changes to
support Synaptics touchpad and generic mouses is implemented.
Active multiplexing mode is enabled only at probe stage to scan through
attached PS/2 devices to query and configure Synaptics touchpad.
After touchpad has been configured, mux is switched back to legacy
(hidden multiplexing) mode to perform normal interrupt-driven input
data processing. Overflow bit values rather than tags are used to
separate packets produced by different devices. Switching back to
legacy mode allows to avoid psm(4) and atkbd(4) rework to support
4 instances of mouse driver.
Note: While in hidden multiplexing mode KBC does some editing of the
packet stream. It remembers the button bits from the last packet
received from each device, and replaces the button bits of every
packet with the logical OR of all devices’ most recent button bits.
This sort of button crosstalk results in spurious button events
which are inhibitted with various tricks. E.g. trackpoint middle
button events are suppressed while trackpad surface is touched and
touchpad left and right button events are suppressed if corresponding
trackpoint buttons are pressed.
PR: 231058
Reported by: Michael Figiel <mifigiel@gmail.com>
Tested by: Michael Figiel <mifigiel@gmail.com>
MFC after: 2 weeks
It appeared that "0x46 identity middle byte" response is caused by so called
"Active PS/2 multiplexing controller" presence. Support for it will be added
in next commit.
Now softc should be retrieved from struct edvev * pointer
with evdev_get_softc() helper.
wmt(4) is a sample of driver that support both KPI.
Reviewed by: hselasky, gonzo
Differential Revision: https://reviews.freebsd.org/D16614
These ioctls are not documented and only stubbed in a few drivers: mse(4),
psm(4) and syscon's sysmouse(4). The only exception is MOUSE_GETVARS
implemented in psm(4)
Given the fact that they were introduced 20 years ago and implementation
has never been completed, remove any related code.
PR: 228718 (exp-run)
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D15726
'status' array passed to get_mouse_status() is usually uninitialized by
callers.
Fully populating it with values in get_mouse_status() can fail due to
read_aux_data().
Additionally, nothing in API constrains 'len' to be >= 3. In practice,
every caller passes three, so perhaps that argument should just be removed.
Refactoring is a larger change, though.
Remove use of potentially uninitialized values by:
1. Only printing 3 debug statuses if the passed array was at least
'len' >= 3;
2. Populating 'status' array up to first three elements, if read_aux_data()
failed.
No functional change intended.
Reported by: Coverity
Sponsored by: Dell EMC Isilon
synaptics or elantech sanity checker.
After packet has been rejected contents of packet buffer is not cleared
with setting of inputbytes counter to 0. So when this packet buffer is
filled again being an element of circular queue, new data appends to old
data rather than overwrites it. This leads to packet buffer overflow
after 10 rounds.
Fix it with setting of packet's inputbytes counter to 0 after rejection.
While here add extra logging of rejected packets.
PR: 222667 (for reference)
Reported by: Neel Chauhan <neel@neelc.org>
Tested by: Neel Chauhan <neel@neelc.org>
MFC after: 1 week
Most synaptics touchpads return 0x47 in middle byte in responce to identify
command as stated in p.4.4 of "Synaptics PS/2 TouchPad Interfacing Guide".
But some devices e.g. found on HP EliteBook 9470m return 0x46 here.
Allow them to be identified as Synaptics as well as 0x47.
ExtendedQueries return incorrect data on such a touchpads so we ignore
their result and set conservative defaults.
PR: 222667
Reported by: Neel Chauhan <neel@neelc.org>
Tested by: Neel Chauhan <neel@neelc.org>
Approved by: gonzo
Modern touchpads do not issue interrupts on inactivity so "lost interrupt"
message became annoying spam nowadays. This change quiets the message
if debug.psm.loglevel=5 (or less) is set in /boot/loader.conf
Approved by: gonzo
ForcePads do not have any physical buttons, instead they detect click
based on finger pressure. Forcepads erroneously report button click
if there are 2 or more fingers on the touchpad breaking multifinger
gestures. To workaround this start reporting a click only after
4 consecutive single touch packets has been received. Skip these packets
in case more contacts appear.
PR: 223369
Reported by: Neel Chauhan <neel@neelc.org>
Tested by: Neel Chauhan <neel@neelc.org>
Reviewed by: gonzo
Approved by: gonzo
This fixes a panic when `EVDEV_SUPPORT` is enabled: if a trackpoint
packet was detected but there was no trackpoint, we still tried to emit an
evdev event even though the associated relative evdev device (`evdev_r`)
was not initialized.
PR: 225339
MFC after: 1 week
In psmprobe(), we set the initial `syncmask` to the vendor default value
if the `PSM_CONFIG_NOCHECKSYNC` bit is unset. However, we currently only
set it for the Elantech touchpad later in psmattach(), thus `syncmask`
is always configured.
Now, we check `PSM_CONFIG_NOCHECKSYNC` and skip sync check if it is set.
This fixes Elantech touchpad support for units which have `hascrc` set.
To clarify that, when we log the `syncmask` and `syncbits` fields, also
mention if they are actually used.
Finally, when we set `PSM_CONFIG_NOCHECKSYNC`, clear `PSM_NEED_SYNCBITS`
flag.
PR: 225338
MFC after: 1 week
This fixes "Kernel has only x or y resolution, not both" libinput error.
Reported by: Ivan <bsd@abinet.ru>
Tested by: Ivan <bsd@abinet.ru>
Approved by: gonzo (mentor)
MFC after: 2 weeks
Both relative and absolute multitouch modes are supported.
To enable psm(4) evdev support one should:
1. Add `device evdev` and `options EVDEV_SUPPORT` to kernel config file
2. Add hw.psm.elantech_support=1 or hw.psm.synaptics_support=1 to
/boot/loader.conf for activation of absolute mode on touchpads
3. Add kern.evdev.rcpt_mask=12 to /etc/sysctl.conf to enable psm event
sourcing and disable sysmouse
Reviewed by: gonzo
Approved by: gonzo (mentor)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D10265
Tested by: wulf, Jan Kokemueller (Lenovo devs)
Increase hw.psm.synaptics.min_pressure default value from 16 to 32
to nearly match Linux driver (30-35 hysteresis loop).
This makes libinput tap detection more reliable.
Reviewed by: gonzo
Approved by: gonzo (mentor)
MFC after: 2 weeks
It is already included via sys/systm.h
Reviewed by: gonzo
Approved by: gonzo (mentor)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D10266
models. This change is based on Linux driver.
Determine logical trace size. It used for calculation of touch sizes
in surface units for MT-protocol type B evdev reports.
Reviewed by: gonzo
Approved by: gonzo (mentor)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D10266
Linux does. It should not affect gesture processing in current state as it
ignores finger coords on 3-finger tap detection but it should make evdev
reports looking more Linux-alike.
Reviewed by: gonzo
Approved by: gonzo
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D10266
This is done with discarding pointer movements rather then mouse packets
Reviewed by: gonzo
Approved by: gonzo (mentor)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D10266
Elan hw v.4 touchpads often sends touchpad release packet right after
touchpad touch one. Most probably this happens due to PS/2 limited bandwith.
Reducing of tap_min_queue size to 1 makes multifinger tap detection
more reliable in this case.
Reviewed by: gonzo
Approved by: gonzo (mentor)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D10266
Wait for all advertised head packets after status packet have been received.
This fixes rare but quite annoying issue in Elan hw v.4 touchpads support
when triple-finger taps are reported as double-finger taps under several
circumstances.
Reviewed by: gonzo
Approved by: gonzo (mentor)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D10266
On laptops like the ThinkPad X240, ClickPad buttons are located at the
top. The hw.psm.synaptics.softbuttons_y sysctl was supposed to allow this
by setting the value to a negative one (e.g. -1700). However, the
condition was wrong (double negative), and doing that placed the buttons
in an unreachable area.
PR: 216342
Submitted by: Greg V <greg@unrelenting.technology>
MFC after: 1 week
With guest trackpoint present trackpoint probing switched synaptics
device to absolute mode with different protocol instead of keeping it
in relative mode.
PR: 213757
Submitted by: Vladimir Kondratyev <wulf@cicgroup.ru>
MFC after: 1 week
- Replace tunables-only hw.psm.synaptics_support, hw.psm.trackpoint_support,
and hw.psm.elantech_support with respective sysctls declared with
CTLFLAG_TUN. It simplifies checking them in userland, also makes them
easier to get discovered by user
- Get rid of debug.psm.loglevel and hw.psm.tap_enabled TUNABLE_INT
declaration by adding CTLFLAG_TUN to read/write sysctls that were
already declared for these tunables.
Suggested by: jhb
Elantech trackpads are found in some laptops like the Asus UX31E. They
are "synaptics compatible" but use a slightly different protocol.
Elantech hardware support is not enabled by default and just like
Synaptic or TrackPoint devices it should be enabled by setting
tunable, in this case hw.psm.elantech_support, to non-zero value
PR: 205690
Submitted by: Vladimir Kondratyev <wulf@cicgroup.ru>
MFC after: 1 week
No functional change, only trivial cases are done in this sweep,
Drivers that can get further enhancements will be done independently.
Discussed in: freebsd-current
absolute position. This seems to be correlated with only removing a single
finger. To work around this report no movement on from the first packet
when the user exits scrolling.
There was a inconsistency which led to enable passthrough commands
being interpreted as actual touchpad commands.
Submitted by: Jan Kokemüller <jan.kokemueller at gmail.com>
MFC after: 1 week
which is default. It was broken in r281441.
It appears that set_trackpoint_parameters() call on resume disables the
mouse. So, we need not call it on resume if hw.psm.trackpoint_support=0.
The problem is that the probe functions are used both for probing and
for reiniting on resume. And the absense of the softc parameter is used
as a mark to distinguish reinit and probe, which is quite ugly. At the
same time the softc parameter is needed to call set_trackpoint_parameters().
o Change the arguments of probefunc_t to always supply the softc, and
use additional enum argument to tell probing from initing.
o Don't call set_trackpoint_parameters() from global doinitialize(),
instead call it from the enable_trackpoint() only.
o In enable_synaptics() call enable_trackpoint() in both probe and
reinit cases.
Together with: Jan Kokemüller <jan.kokemueller gmail.com>
