kernel/linux.git/drivers/input/mouse/elantech.c, branch v4.1.29

Input: elantech - add more IC body types to the list

2016-07-11T00:20:03+00:00

[ Upstream commit 226ba707744a51acb4244724e09caacb1d96aed9 ] The touchpad in HP Pavilion 14-ab057ca reports it's version as 12 and according to Elan both 11 and 12 are valid IC types and should be identified as hw_version 4. Reported-by: Patrick Lessard Tested-by: Patrick Lessard Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin

Input: elantech - mark protocols v2 and v3 as semi-mt

2016-02-03T19:01:46+00:00

[ Upstream commit 6544a1df11c48c8413071aac3316792e4678fbfb ] When using a protocol v2 or v3 hardware, elantech uses the function elantech_report_semi_mt_data() to report data. This devices are rather creepy because if num_finger is 3, (x2,y2) is (0,0). Yes, only one valid touch is reported. Anyway, userspace (libinput) is now confused by these (0,0) touches, and detect them as palm, and rejects them. Commit 3c0213d17a09 ("Input: elantech - fix semi-mt protocol for v3 HW") was sufficient enough for xf86-input-synaptics and libinput before it has palm rejection. Now we need to actually tell libinput that this device is a semi-mt one and it should not rely on the actual values of the 2 touches. Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin

Input: elantech - add new icbody type

2015-06-05T05:34:39+00:00

This adds new icbody type to the list recognized by Elantech PS/2 driver. Cc: stable@vger.kernel.org Signed-off-by: Sam Hung Signed-off-by: Dmitry Torokhov

Input: elantech - fix detection of touchpads where the revision matches a known rate

2015-06-02T17:43:07+00:00

Make the check to skip the rate check more lax, so that it applies to all hw_version 4 models. This fixes the touchpad not being detected properly on Asus PU551LA laptops. Cc: stable@vger.kernel.org Reported-and-tested-by: David Zafra Gómez Signed-off-by: Hans de Goede Signed-off-by: Dmitry Torokhov

Input: elantech - fix semi-mt protocol for v3 HW

2015-05-13T17:31:22+00:00

When the v3 hardware sees more than one finger, it uses the semi-mt protocol to report the touches. However, it currently works when num_fingers is 0, 1 or 2, but when it is 3 and above, it sends only 1 finger as if num_fingers was 1. This confuses userspace which knows how to deal with extra fingers when all the slots are used, but not when some are missing. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=90101 Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires Signed-off-by: Dmitry Torokhov

Input: elantech - fix absolute mode setting on some ASUS laptops

2015-04-06T22:39:07+00:00

On ASUS TP500LN and X750JN, the touchpad absolute mode is reset each time set_rate is done. In order to fix this, we will verify the firmware version, and if it matches the one in those laptops, the set_rate function is overloaded with a function elantech_set_rate_restore_reg_07 that performs the set_rate with the original function, followed by a restore of reg_07 (the register that sets the absolute mode on elantech v4 hardware). Also the ASUS TP500LN and X750JN firmware version, capabilities, and button constellation is added to elantech.c Cc: stable@vger.kernel.org Reported-and-tested-by: George Moutsopoulos Signed-off-by: Ulrik De Bie Signed-off-by: Dmitry Torokhov

Input: elantech - add more Fujtisu notebooks to force crc_enabled

2015-02-01T19:51:26+00:00

Add two more Fujitsu LIFEBOOK models that also ship with the Elantech touchpad and don't work with crc_disabled to the quirk list. Signed-off-by: Rainer Koenig Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov

Input: elantech - support new ICs types for version 4

2015-01-08T21:52:26+00:00

This change allows the driver to recognize newer Elantech touchpads. Cc: stable@vger.kernel.org Signed-off-by: Yi ju Hong Signed-off-by: Dmitry Torokhov

Input: elantech - trust firmware about trackpoint presence

2014-11-25T08:42:13+00:00

Only try to parse data as coming from trackpoint if firmware told us that trackpoint is present. Fixes commit caeb0d37fa3e387eb0dd22e5d497523c002033d1 Reported-and-tested-by: Marcus Overhagen Reported-and-tested-by: Anders Kaseorg Signed-off-by: Dmitry Torokhov

Input: elantech - provide a sysfs knob for crc_enabled

2014-11-14T01:50:23+00:00

The detection of crc_enabled is known to fail for Fujitsu H730. A DMI blacklist is added for that, but it can be expected that other laptops will pop up with this. Here a sysfs knob is provided to alter the behaviour of crc_enabled. Writing 0 or 1 to it sets the variable to 0 or 1. Reading it will show the crc_enabled variable (0 or 1). Reported-by: Stefan Valouch Signed-off-by: Ulrik De Bie Signed-off-by: Dmitry Torokhov