linux.git/drivers/hid/hid-multitouch.c, branch v5.11

HID: multitouch: Apply MT_QUIRK_CONFIDENCE quirk for multi-input devices

2021-01-25T08:34:15+00:00

Palm ejection stops working on some Elan and Synaptics touchpad after
commit 40d5bb87377a ("HID: multitouch: enable multi-input as a quirk for
some devices").

The commit changes the mt_class from MT_CLS_WIN_8 to
MT_CLS_WIN_8_FORCE_MULTI_INPUT, so MT_QUIRK_CONFIDENCE isn't applied
anymore.

So also apply the quirk since MT_CLS_WIN_8_FORCE_MULTI_INPUT is
essentially MT_CLS_WIN_8.

Fixes: 40d5bb87377a ("HID: multitouch: enable multi-input as a quirk for some devices")
Cc: stable@vger.kernel.org
Signed-off-by: Kai-Heng Feng 
Signed-off-by: Benjamin Tissoires

HID: multitouch: Enable multi-input for Synaptics pointstick/touchpad device

2021-01-04T13:32:46+00:00

Pointstick and its left/right buttons on HP EliteBook 850 G7 need
multi-input quirk to work correctly.

Signed-off-by: Kai-Heng Feng 
Signed-off-by: Jiri Kosina

HID: multitouch: Lenovo X1 Tablet Gen2 trackpoint and buttons

2020-09-22T10:09:54+00:00

One more device that needs 40d5bb87 to resolve regression for the trackpoint
and three mouse buttons on the type cover of the Lenovo X1 Tablet Gen2.

Signed-off-by: Mikael Wikström 
Signed-off-by: Jiri Kosina

HID: multitouch: Lenovo X1 Tablet Gen3 trackpoint and buttons

2020-09-22T09:52:56+00:00

One more device that needs 40d5bb87 to resolve regression for the trackpoint
and three mouse buttons on the type cover of the Lenovo X1 Tablet Gen3.

It is probably also needed for the Lenovo X1 Tablet Gen2 with PID 0x60a3

Signed-off-by: Mikael Wikström 
Signed-off-by: Jiri Kosina

HID: core: Sanitize event code and type when mapping input

2020-09-01T10:06:41+00:00

When calling into hid_map_usage(), the passed event code is
blindly stored as is, even if it doesn't fit in the associated bitmap.

This event code can come from a variety of sources, including devices
masquerading as input devices, only a bit more "programmable".

Instead of taking the event code at face value, check that it actually
fits the corresponding bitmap, and if it doesn't:
- spit out a warning so that we know which device is acting up
- NULLify the bitmap pointer so that we catch unexpected uses

Code paths that can make use of untrusted inputs can now check
that the mapping was indeed correct and bail out if not.

Cc: stable@vger.kernel.org
Signed-off-by: Marc Zyngier 
Signed-off-by: Benjamin Tissoires

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2020-06-10T20:51:47+00:00

Pull input updates from Dmitry Torokhov:

 - a new driver for the Azoteq IQS269A capacitive touch controller

 - a new driver for the Cypress CY8CTMA140 touchscreen

 - updates to Elan and ft5x06 touchscreen drivers

 - assorted driver fixes

 - msm-vibrator has been removed as we have a more generic solution

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (28 commits)
  Input: adi - work around module name confict
  Input: iqs269a - add missing I2C dependency
  Input: elants - refactor elants_i2c_execute_command()
  Input: elants - override touchscreen info with DT properties
  Input: elants - remove unused axes
  Input: add support for Azoteq IQS269A
  dt-bindings: input: Add bindings for Azoteq IQS269A
  Input: imx_sc_key - use devm_add_action_or_reset() to handle all cleanups
  Input: remove msm-vibrator driver
  dt-bindings: Input: remove msm-vibrator
  Input: elants_i2c - provide an attribute to show calibration count
  Input: introduce input_mt_report_slot_inactive()
  dt-bindings: input: touchscreen: elants_i2c: convert to YAML
  Input: add driver for the Cypress CY8CTMA140 touchscreen
  dt-bindings: touchscreen: Add CY8CTMA140 bindings
  Input: edt-ft5x06 - prefer asynchronous probe
  Input: edt-ft5x06 - improve power management operations
  Input: edt-ft5x06 - move parameter restore into helper
  Input: edt-ft5x06 - fix get_default register write access
  Input: atkbd - receive and use physcode->keycode mapping from FW
  ...

HID: multitouch: Remove MT_CLS_WIN_8_DUAL

2020-05-27T11:40:17+00:00

After commit c23e2043d5f7 ("HID: multitouch: do not filter mice nodes"),
MT_CLS_WIN_8 also supports mouse nodes, hence make MT_CLS_WIN_8_DUAL
redundant.

Remove MT_CLS_WIN_8_DUAL accordingly.

Signed-off-by: Kai-Heng Feng 
Signed-off-by: Benjamin Tissoires

HID: multitouch: enable multi-input as a quirk for some devices

2020-05-27T09:45:06+00:00

Two touchpad/trackstick combos are currently not behaving properly.
They define a mouse emulation collection, as per Win8 requirements,
but also define a separate mouse collection for the trackstick.

The way the kernel currently treat the collections is that it
merges both in one device. However, given that the first mouse
collection already defines X,Y and left, right buttons, when
mapping the events from the second mouse collection, hid-multitouch
sees that these events are already mapped, and simply ignores them.

To be able to report events from the tracktick, add a new quirked
class for it, and manually add the 2 devices we know about.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=207235
Cc: stable@vger.kernel.org
Tested-by: Kai-Heng Feng 
Signed-off-by: Benjamin Tissoires

Input: introduce input_mt_report_slot_inactive()

2020-05-12T20:18:26+00:00

input_mt_report_slot_state() ignores "tool" argument when the slot is
closed, which has caused a bit of confusion. Let's introduce
input_mt_report_slot_inactive() to report inactive slot state.

Suggested-by: Dmitry Torokhov 
Signed-off-by: Jiada Wang 
Link: https://lore.kernel.org/r/20200508055656.96389-2-jiada_wang@mentor.com
Signed-off-by: Dmitry Torokhov

HID: multitouch: add eGalaxTouch P80H84 support

2020-04-14T09:14:11+00:00

Add support for P80H84 touchscreen from eGalaxy:

  idVendor           0x0eef D-WAV Scientific Co., Ltd
  idProduct          0xc002
  iManufacturer           1 eGalax Inc.
  iProduct                2 eGalaxTouch P80H84 2019 vDIVA_1204_T01 k4.02.146

Signed-off-by: Sebastian Reichel 
Signed-off-by: Jiri Kosina