Several improvements to the Synaptics driver to support
semi-multitouch trackpads and some other fixes:
- Two finger scrolling support for "semi-MT" touchpads. Those include
many of the older Synaptics touchpads before "true" multitouch support
(indicated by capMultiFinger). Semi-MT touchpads can report a second
finger position, but the X or Y coordinate may be swapped with some
coordinate of the first finger. This is a result of how the hardware
works internally. Therefore, all that can be reliably extracted is the
bounding box of the two finger positions. Semi-MT touchpads can be
recognized by the capAdvancedGestures capability bit. After setting the
mode byte, advanced gestures mode has to be enabled. Then, data packets
compatible with the capMultiFinger format are sent, so the same two
finger scrolling code can be leveraged. Enabling advanced gestures mode
on true multitouch touchpads should be harmless. Linux seems to always
enable advanced gestures mode.
- Put mode setting logic into own functions synaptics_preferred_mode()
and synaptics_set_mode() to have this in one place.
synaptics_passthrough_on() and synaptics_passthrough_off() currently
always use 0xc1 as the mode byte, which may be wrong for touchpads that
don't have capExtended.
- Expose X and Y resolution of touchpad to userland. Also expose minimum
and maximum X and Y coordinates. This is useful for programs in
userspace that read raw PSM packets (with PSM_LEVEL_NATIVE enabled) and
need to interpret the coordinates.
- Also send "extended w mode" packets (see section 3.2.9 of
511-000275-01_RevB.pdf) to userspace if PSM_LEVEL_NATIVE is enabled.
This is useful for userspace programs/drivers such as
xf86-input-synaptics that can handle these packets.
- Fix parsing of nExtendedQueries, and request extended/continued
capability bits depending on this value.
- capReportsMax, capClearPad, capAdvancedGestures and capCoveredPad must
be extracted from status[0] and not status[2], I think.
Submitted by: Jan Kokemüller jan.kokemueller at gmail.com
On trackpads that had support for both, we were sending two button
events when the trackpad was pressed.
Tested by: Jakob Alvermark <jakob at alvermark.net>
MFC after: 1 week
To accomplish this, we must put the Synaptics hardware in passthrough
mode when talking to the trackpoint.
I only performed minor style modifications.
Submitted by: Jan Kokemüller <jan.kokemueller at gmail.com>
MFC after: 1 week
Enable two finger scrolling by default and disable the edge scrolling if
the touchpad has no physical zone for it. Disable directional scrolling
by default to avoid using extended buttons as scroll buttons.
Add support for ClickPad. On Lenovo laptops, this is the button
reported when one presses the touchpad.
While there, fix a problem where the extended buttons were not reporting
the button release event correctly: we need to save the state of the
buttons and report it to sysmouse until we receive a packet from the
touchpad indicating the button has been released. This makes it
possible to use an extended button to resize a window. On Lenovo
laptops, the major buttons are actually reported as extended buttons.
Tested by: many (current@)
MFC after: 1 week
This probably supports other devices based on SeaBIOS, which need
to be added to the smbios based quirks table.
The functionality has been ported from DragonFlyBSD and adapted
to FreeBSD's more general purpose environment.
Devices not covered by a quirk shouldn't be affected at all. Thanks
to jhb and kostikbel for reviewing the code.
Reviewed by: kostikbel, jhb
Approved by: jhb, kostikbel
Differential Revision: https://reviews.freebsd.org/D1802
It turns out that synaptics_support was turned off by default
because its probing method is too intrusive not because it was unstable.
Once this is fixed it should be enabled once again.
Reported by: delphij, jkim
Starting with firmware v7.5, the "Read TouchPad Modes" ($01) and "Read
Capabilities" ($02) commands changed: previously constant bytes now
carry variable information.
We now compare those bytes to expected constants only for firmware prior
to v7.5.
Tested by: Zeus Panchenko <zeus@gnu.org.ua>
MFC after: 1 week
- Make INITAFTERSUSPEND flag independent of HOOKRESUME flag.
- Automatically set INITAFTERSUSPEND flag when ALPS GlidePoint is detected.
- Always probe Synaptics Touchpad. Allow MOUSE_SYN_GETHWINFO ioctl and
automatically set INITAFTERSUSPEND flag when a supported device is detected,
regardless of "hw.psm.synaptics_support" tunable setting.
- Update psm(4) to reflect the above changes.
- Remove long-time defunct SYNCHACK flag while I am in the neighborhood.
MFC after: 1 month
The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else, there's no
reason why it shouldn't be static.
delete the IRQ resource from the psmcpnp device completely.
- Don't allocate the IRQ resource shared. It is not a shareable interrupt
on ISA. The bus driver can set RF_SHAREABLE if the IRQ is actually
shareable on a non-ISA bus.
This tunable allows one to enable (1) or disable (0) gestures like tap
and tap-hold on Synaptics TouchPad when the Extended mode isn't enabled
(ie. "hw.psm.synaptics_support" not set).
By default, the value is -1 in order to keep the current behaviour of
not enabling/disabling gestures explicitly.
PR: kern/139272
Submitted by: David Horn <dhorn2000 AT gmail DOT com>
Reviewed by: David Horn <dhorn2000 AT gmail DOT com>
The newbus lock is responsible for protecting newbus internIal structures,
device states and devclass flags. It is necessary to hold it when all
such datas are accessed. For the other operations, softc locking should
ensure enough protection to avoid races.
Newbus lock is automatically held when virtual operations on the device
and bus are invoked when loading the driver or when the suspend/resume
take place. For other 'spourious' operations trying to access/modify
the newbus topology, newbus lock needs to be automatically acquired and
dropped.
For the moment Giant is also acquired in some key point (modules subsystem)
in order to avoid problems before the 8.0 release as module handlers could
make assumptions about it. This Giant locking should go just after
the release happens.
Please keep in mind that the public interface can be expanded in order
to provide more support, if there are really necessities at some point
and also some bugs could arise as long as the patch needs a bit of
further testing.
Bump __FreeBSD_version in order to reflect the newbus lock introduction.
Reviewed by: ed, hps, jhb, imp, mav, scottl
No answer by: ariff, thompsa, yongari
Tested by: pho,
G. Trematerra <giovanni dot trematerra at gmail dot com>,
Brandon Gooch <jamesbrandongooch at gmail dot com>
Sponsored by: Yahoo! Incorporated
Approved by: re (ksmith)
o better quality of the movement smoothing
o more features such as tap-hold and virtual scrolling
Support must still be enabled with this line in your /boot/loader.conf:
hw.psm.synaptics_support="1"
The following sysctls were removed:
hw.psm.synaptics.low_speed_threshold
hw.psm.synaptics.min_movement
hw.psm.synaptics.squelch_level
An overview of this new driver and a short documentation about the added
sysctls is available on the wiki:
http://wiki.freebsd.org/SynapticsTouchpad
After I removed all the unit2minor()/minor2unit() calls from the kernel
yesterday, I realised calling minor() everywhere is quite confusing.
Character devices now only have the ability to store a unit number, not
a minor number. Remove the confusion by using dev2unit() everywhere.
This commit could also be considered as a bug fix. A lot of drivers call
minor(), while they should actually be calling dev2unit(). In -CURRENT
this isn't a problem, but it turns out we never had any problem reports
related to that issue in the past. I suspect not many people connect
more than 256 pieces of the same hardware.
Reviewed by: kib
pretend to be IntelliMouse (which have a few more features than generic mice)
causing the IntelliMouse probe to work and the Synaptics code never to be
called.
This should not break "real" IntelliMouse because the Synaptics detection code
is fairly specific.
PR: kern/120833
Submitted by: Eygene Ryabinkin <rea-fbsd -at- codelabs.ru>
MFC after: 1 week
commands can be written to /dev/psm%d and status can be read back from it.
- Reflect the change in psm(4) and bump version for ports.
MFC after: 1 week
first before they can be set to Explorer mode.
PR: kern/118578
Submitted by: Andriy Gapon <avg@icyb.net.ua> (I added some comments)
Reviewed by: philip
MFC after: 1 month
to set_controller_command_byte() call; by issueing a Read Mode Byte
command, the touchpad is in Absolute Mode again.
This problem occursed at least on Asus V6V laptops.
files after they were repo-copied to sys/dev/atkbdc. The sources of
atkbdc(4) and its children were moved to the new location in preparation
for adding an EBus front-end to atkbdc(4) for use on sparc64; i.e. in
order to not further scatter them over the whole tree which would have
been the result of adding atkbdc_ebus.c in e.g. sys/sparc64/ebus. Another
reason for the repo-copies was that some of the sources were misfiled,
e.g. sys/isa/atkbd_isa.c wasn't ISA-specific at all but for hanging
atkbd(4) off of atkbdc(4) and was renamed to atkbd_atkbdc.c accordingly.
Most of sys/isa/psm.c, i.e. expect for its PSMC PNP part, also isn't
ISA-specific.
- Separate the parts of atkbdc_isa.c which aren't actually ISA-specific
but are shareable between different atkbdc(4) bus front-ends into
atkbdc_subr.c (repo-copied from atkbdc_isa.c). While here use
bus_generic_rl_alloc_resource() and bus_generic_rl_release_resource()
respectively in atkbdc_isa.c instead of rolling own versions.
- Add sparc64 MD bits to atkbdc(4) and atkbd(4) and an EBus front-end for
atkbdc(4). PS/2 controllers and input devices are used on a couple of
Sun OEM boards and occur on either the EBus or the ISA bus. Depending on
the board it's either the only on-board mean to connect a keyboard and
mouse or an alternative to either RS232 or USB devices.
- Wrap the PSMC PNP part of psm.c in #ifdef DEV_ISA so it can be compiled
without isa(4) (e.g. for EBus-only machines). This ISA-specific part
isn't separated into its own source file, yet, as it requires more work
than was feasible for 6.0 in order to do it in a clean way. Actually
philip@ is working on a rewrite of psm(4) so a more comprehensive
clean-up and separation of hardware dependent and independent parts is
expected to happen after 6.0.
Tested on: i386, sparc64 (AX1105, AXe and AXi boards)
Reviewed by: philip
o Implement a shiny new algorithm to keep track of finger movement at
slow speeds. This dramatically reduces the level of questionable
language from users trying to resize windows.
o Properly catch the many extra buttons and dials which manufacturers
are known to screw onto Synaptics touchpad controllers. Currently,
up to seven buttons are known to work, more should work too.
o Add a number of sysctls allowing one to tune the driver to taste in
a simple way:
# Should the extra buttons act as axes or as middle button
hw.psm.synaptics.directional_scrolls
# These control the 'stickiness' at low speeds
hw.psm.synaptics.low_speed_threshold
hw.psm.synaptics.min_movement
hw.psm.synaptics.squelch_level
PR: kern/75725
Submitted by: Jason Kuri <jay@oneway.com>
MFC after: 1 month
o Move the sysctls under debug.psm.* and hw.psm.* making them a bit
clearer and more consistent with other drivers.
o Remove the debug.psm_soft_timeout sysctl. It was introduced many
moons ago in r1.64 but never referenced anywhere.
o Introduce hw.psm.tap_threshold and hw.psm.tap_timeout to control
the behaviour of taps on touchpads. People might like to fiddle
with these if tapping seems to slow or too fast for them.
o Add debug.psm.loglevel as a tunable so that verbosity can be set
easily at boot-time (to watch probes and such) without having to
compile a kernel with options PSM_DEBUG=N.
people have reported problems (stickyness, aiming difficulty) which is proving
difficult to fix, so this will default to disable until sometime after 5.3R.
To enable Synaptics support, set the 'hw.psm.synaptics_support=1' tunable.
MT5 candidate.
Approved by: njl
o Remove PSM_SYNCERR_THRESHOLD1. This value specified how many sync
errors were required before the mouse is re-initialised.
Re-initialisation is now done after (packetsize * 2) sync errors as
things aren't likely to improve after that.
o Reset lastinputerror when re-initialisation occurs. We don't want
to continue to drop data after re-initialisation.
o Count the number of failed packets independently of the syncerrors
statistic. syncerrors is useful for recovering sync within a single
packet. pkterrors allows us to detect when the mouse changes its
packet mode due to some external event (e.g. KVM switch).
o Reinitialize the mouse if we see more than psmpkterrthresh errors
during the validation period. The validation period begins as soon
as a sync error is detected and continues until psmerrsecs/msecs
time has elapsed. The defaults for these two values force a reset
if we see two packet errors in a 2 second period. This allows rapid
detection of packet framing errors caused by the mouse changing packet
modes.
o Export psmpkterrthresh as a sysctl
o Export psmloglevel as a sysctl.
o Enable more debugging code to be enabled at runtime via psmloglevel.
o Simplify verbose conditioned loging by using a VLOG macro.
o Add several comments describing the sync recovery algorithm of
this driver.
Large Portions by: Brian Somers <brian@Awfulhak.org>
Inspired and Frustrated by: Belkin KVMs
Reviewed by: njl, philip
data packet is received from the mouse. In the case of many KVM's,
this avoids a bug in their mouse emulation that sends back incorrect
sync when you explicitly request a data packet from the mouse. Without
this change, you must force the driver into stock PS/2 mode or be flooded
with a never ending stream of "out of sync" messages on these KVMs.
Approved by: re
o Change the motion calculation to result in
a more reasonable speed of motion
This should fix the 'aiming' problems people have reported. It also
mitigates (but doesn't completely solve) the 'stalling' problems at
very low speeds.
Tested by: many subscribers to -current
Approved by: njl
