linux-toradex.git/drivers/input/mouse, branch v4.9.13

Input: elan_i2c - add ELAN0605 to the ACPI table

2017-02-23T16:44:35+00:00

commit 722c5ac708b4f5c1fcfad5fed4c95234c8b06590 upstream.

ELAN0605 has been confirmed to be a variant of ELAN0600, which is
blacklisted in the hid-core to be managed by elan_i2c. This device can be
found in Lenovo ideapad 310s (80U4000).

Signed-off-by: Hiroka IHARA 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: ALPS - fix TrackStick support for SS5 hardware

2017-01-26T07:24:41+00:00

commit 864db9295b06837d11a260e5dacf99a3fdf6bce2 upstream.

The current Alps SS5 (SS4 v2) code generates bogus TouchPad events when
TrackStick packets are processed.

This causes the xorg synaptics driver to print
"unable to find touch point 0" and
"BUG: triggered 'if (priv->num_active_touches > priv->num_slots)'"
messages.  It also causes unexpected TouchPad button release and re-click
event sequences if the TrackStick is moved while holding a TouchPad
button.

This commit corrects the problem by adjusting alps_process_packet_ss4_v2()
so that it only sends TrackStick reports when processing TrackStick
packets.

Reviewed-by: Pali Rohár 
Signed-off-by: Paul Donohue 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: psmouse - disable automatic probing of BYD touchpads

2016-11-17T01:25:31+00:00

BYD automatic protocol detection is extremely unreliable and is often
triggers false positives on regular mice, Sentelic touchpads, and other
devices. BYD has several documents that have recommended detection
sequence, but they conflict with each other and, as far as I can see, still
would not produce unique enough output to reliably differentiate BYD from
other PS/2 devices.

OEMs sourcing BYD devices also do not do us any favors by not supplying any
reasonable DMI data and instead leaving turds like "To Be Filled By O.E.M."
in place of vendor data, or "System Serial Number" as serial number.

On top of that BYD is not truly modern multitouch controller, but rather a
single-touch transitional device that only reports absolute coordinates at
the beginning of finger contact and then reverts to reporting
displacements, and thus not very precise; the only benefit from using BYD
mode vs the legacy PS/2 mode is possibility of edge scrolling.

Given the above, and the fact that BYD devices are somewhat uncommon, let's
disable automatic detection of BYD devices. Users who know they have BYD
trackpads or want to experiment can attempt to activate BYD protocol via
sysfs:

	echo -n "byd" > /sys/bus/serio/devices/serio1/drvctl

Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=151691
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=175421
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=120781
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=121281
Fixes: 98ee37714493 ("Input: byd - add BYD PS/2 touchpad driver")
Cc: stable@vger.kernel.org # 4.6+
Reviewed-by: Pali Rohár 
Signed-off-by: Dmitry Torokhov

Input: psmouse - cleanup Focaltech code

2016-10-25T00:19:25+00:00

psmouse->name "Focaltech Touchpad" is an overkill. In xinput it is too long
as "FocaltechPS/2 Focaltech Focaltech Touchpad"

In focaltech_report_state() pointer to psmouse->dev is already stored as
*dev

Signed-off-by: Dmitry Tunin 
Signed-off-by: Dmitry Torokhov

Input: elantech - add Fujitsu Lifebook E556 to force crc_enabled

2016-10-07T23:30:12+00:00

Another Lifebook machine that needs the same quirk as other similar
models to make the driver working.

Also let's reorder elantech_dmi_force_crc_enabled list so LIfebook enries
are in alphabetical order.

Reported-by: William Linna 
Tested-by: William Linna 
Reviewed-by: Benjamin Tissoires 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov

Input: ALPS - set DualPoint flag for 74 03 28 devices

2016-10-04T18:47:01+00:00

Here we introduce logic in alps_identify to set the ALPS_DUALPOINT flag
for touchpad hardware responding to E7 report with 73 03 28, as is found
in the Dell Latitude E7470.

Tested-by: Michal Hocko 
Signed-off-by: Ben Gamari 
Signed-off-by: Dmitry Torokhov

Input: ALPS - allow touchsticks to report pressure

2016-10-04T18:46:54+00:00

The SS5 hardware can report this.

Tested-by: Michal Hocko 
Signed-off-by: Ben Gamari 
Signed-off-by: Dmitry Torokhov

Input: ALPS - handle 0-pressure 1F events

2016-10-04T18:46:51+00:00

While a button is held SS5 hardware will give us single-finger packets
with x, y, and pressure equal to zero. This causes annoying jumps in
pointer position if a touch is released while the button is held. Handle
this by claiming zero contacts to ensure that no position events are
provided to the user.

Reviewed-by: Pali Rohár 
Tested-by: Michal Hocko 
Signed-off-by: Ben Gamari 
Signed-off-by: Dmitry Torokhov

Input: ALPS - add touchstick support for SS5 hardware

2016-10-04T18:46:41+00:00

Add touchstick support for the so-called SS5 hardware, which uses a
variant of the SS4 protocol.

Reviewed-by: Pali Rohár 
Tested-by: Michal Hocko 
Signed-off-by: Ben Gamari 
Signed-off-by: Dmitry Torokhov

Input: elantech - force needed quirks on Fujitsu H760

2016-10-04T00:31:57+00:00

Just like Fujitsu CELSIUS H730, the H760 also has an Elantech touchpad with
the same quirks. Without this patch, the touchpad is useless out-of-the-box
as the mouse pointer won't move.

This patch makes the driver aware of both the crc_enabled=1 requirement and
the middle button, making the touchpad fully functional out-of-the-box.

Signed-off-by: Matti Kurkela 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov