Commit graph

258 commits

Author SHA1 Message Date
Hans de Goede
498d0ddc6a HID: multitouch: Disable event reporting on suspend when the device is not a wakeup-source
Disable event reporting on suspend when the hid device is not
a wakeup-source. This should help save some extra power in this case.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2021-06-25 14:02:59 +02:00
Hans de Goede
31a4cf1d22 HID: multitouch: Disable event reporting on suspend on the Asus T101HA touchpad
The Asus T101HA has a problem with spurious wakeups when the lid is
closed, this is caused by the screen sitting so close to the touchpad
that the touchpad ends up reporting touch events, causing these wakeups.

Add a quirk which disables event reporting on suspend when set, and
enable this quirk for the Asus T101HA touchpad fixing the spurious
wakeups, while still allowing the device to be woken by pressing a
key on the keyboard (which is part of the same USB device).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2021-05-27 15:40:34 +02:00
Ahelenia Ziemiańska
bc8b796f61 HID: multitouch: set Stylus suffix for Stylus-application devices, too
This re-adds the suffix to Win8 stylus-on-touchscreen devices,
now that they aren't erroneously marked as MT

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2021-05-05 15:06:44 +02:00
Ahelenia Ziemiańska
a2353e3b26 HID: multitouch: require Finger field to mark Win8 reports as MT
This effectively changes collection_is_mt from
  contact ID in report->field
to
  (device is Win8 => collection is finger) && contact ID in report->field

Some devices erroneously report Pen for fingers, and Win8 stylus-on-touchscreen
devices report contact ID, but mark the accompanying touchscreen device's
collection correctly

Cc: stable@vger.kernel.org
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2021-05-05 15:05:05 +02:00
Jiri Kosina
31d31fa52c Merge branch 'for-5.12/multitouch' into for-linus
- hid-multitouch devices should be put into high-latency mode when
  suspended in order to be in line with Windows Precision Touchpad
  guidelines. From Blaž Hrastnik.
2021-02-23 11:36:19 +01:00
Blaž Hrastnik
c7aa374e00 HID: multitouch: Set to high latency mode on suspend.
Per Windows Precision Touchpad guidelines:

> The latency mode feature report is sent by the host to a Windows
> Precision Touchpad to indicate when high latency is desirable for
> power savings and, conversely, when normal latency is desired for
> operation.
>
> For USB-connected Windows Precision Touchpads, this enables the device
> to disambiguate between being suspended for inactivity (runtime IDLE)
> and being suspended because the system is entering S3 or Connected
> Standby.

The current implementation would set the latency to normal on device initialization,
but we didn't set the device to high latency on suspend.

Signed-off-by: Blaž Hrastnik <blaz@mxxn.io>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2021-01-26 11:09:06 +01:00
Kai-Heng Feng
794c613383 HID: multitouch: Apply MT_QUIRK_CONFIDENCE quirk for multi-input devices
Palm ejection stops working on some Elan and Synaptics touchpad after
commit 40d5bb8737 ("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: 40d5bb8737 ("HID: multitouch: enable multi-input as a quirk for some devices")
Cc: stable@vger.kernel.org
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2021-01-25 09:34:15 +01:00
Kai-Heng Feng
c3d6eb6e54 HID: multitouch: Enable multi-input for Synaptics pointstick/touchpad device
Pointstick and its left/right buttons on HP EliteBook 850 G7 need
multi-input quirk to work correctly.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2021-01-04 14:32:46 +01:00
Mikael Wikström
4a6a4c966c HID: multitouch: Lenovo X1 Tablet Gen2 trackpoint and buttons
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 <leakim.wikstrom@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2020-09-22 12:09:54 +02:00
Mikael Wikström
140958da9a HID: multitouch: Lenovo X1 Tablet Gen3 trackpoint and buttons
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 <leakim.wikstrom@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2020-09-22 11:52:56 +02:00
Marc Zyngier
35556bed83 HID: core: Sanitize event code and type when mapping input
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 <maz@kernel.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
2020-09-01 12:06:41 +02:00
Linus Torvalds
49f13b0921 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
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
  ...
2020-06-10 13:51:47 -07:00
Kai-Heng Feng
27a6f70173 HID: multitouch: Remove MT_CLS_WIN_8_DUAL
After commit c23e2043d5 ("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 <kai.heng.feng@canonical.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2020-05-27 13:40:17 +02:00
Benjamin Tissoires
40d5bb8737 HID: multitouch: enable multi-input as a quirk for some devices
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 <kai.heng.feng@canonical.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2020-05-27 11:45:06 +02:00
Jiada Wang
5fc70e350e Input: introduce input_mt_report_slot_inactive()
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 <dmitry.torokhov@gmail.com>
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Link: https://lore.kernel.org/r/20200508055656.96389-2-jiada_wang@mentor.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-12 13:18:26 -07:00
Sebastian Reichel
f9e82295ee HID: multitouch: add eGalaxTouch P80H84 support
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 <sebastian.reichel@collabora.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2020-04-14 11:14:11 +02:00
Pan Zhang
306d5acbfc drivers/hid/hid-multitouch.c: fix a possible null pointer access.
1002     if ((quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
1003         struct input_mt_slot *i_slot = &mt->slots[slotnum];
1004
1005         if (input_mt_is_active(i_slot) &&
1006             input_mt_is_used(mt, i_slot))
1007             return -EAGAIN;
1008     }

We previously assumed 'mt' could be null (see line 1002).

The following situation is similar, so add a judgement.

Signed-off-by: Pan Zhang <zhangpan26@huawei.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2019-12-19 10:22:25 +01:00
Aaron Ma
348b80b273 HID: multitouch: Add LG MELF0410 I2C touchscreen support
Add multitouch support for LG MELF I2C touchscreen.
Apply the same workaround as LG USB touchscreen.

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2019-12-09 13:55:05 +01:00
Benjamin Tissoires
69ecd44d68 HID: multitouch: add support for the Smart Tech panel
This panel is not very friendly to us:
it exposes multiple multitouch collections, some of them being of
logical application stylus.

Usually, a device has only one report per application, and that is
what I assumed in commit 8dfe14b3b4 ("HID: multitouch: ditch mt_report_id")

To avoid breaking all working device, add a new class and a new quirk
for that situation.

Reported-and-tested-by: Matthias Fend <Matthias.Fend@wolfvision.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2019-08-22 17:53:16 +02:00
Benjamin Tissoires
c23e2043d5 HID: multitouch: do not filter mice nodes
It was a good idea at the time to not create a mouse node for the
multitouch touchscreens, but:
- touchscreens following the Win 8 protocol should not have this
  disturbing mouse node anymore, or if they have, it should be
  used for something else (like a joystick attached to the screen)
- touchpads have it, and they should not use it unless there is a bug,
  but when the laptop has a trackstick, the data are reported through this
  mouse node.

So instead of whitelisting all of the devices that have a need for the
mouse node, just export it.
hid-input.c will append a suffix to it ('Mouse'), so users will eventually
see if something goes wrong.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2019-08-22 17:53:16 +02:00
Linus Torvalds
763cf1f2d9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:

 - fix for one corner case in HID++ protocol with respect to handling
   very long reports, from Hans de Goede

 - power management fix in Intel-ISH driver, from Hyungwoo Yang

 - use-after-free fix in Intel-ISH driver, from Dan Carpenter

 - a couple of new device IDs/quirks from Kai-Heng Feng, Kyle Godbey and
   Oleksandr Natalenko

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: intel-ish-hid: fix wrong driver_data usage
  HID: multitouch: Add pointstick support for ALPS Touchpad
  HID: logitech-dj: Fix forwarding of very long HID++ reports
  HID: uclogic: Add support for Huion HS64 tablet
  HID: chicony: add another quirk for PixArt mouse
  HID: intel-ish-hid: Fix a use after free in load_fw_from_host()
2019-06-28 08:39:18 +08:00
Kai-Heng Feng
0a95fc733d HID: multitouch: Add pointstick support for ALPS Touchpad
There's a new ALPS touchpad/pointstick combo device that requires
MT_CLS_WIN_8_DUAL to make its pointsitck work as a mouse.

The device can be found on HP ZBook 17 G5.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2019-06-26 14:04:26 +02:00
Linus Torvalds
c11fb13a11 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:

 - regression fixes (reverts) for module loading changes that turned out
   to be incompatible with some userspace, from Benjamin Tissoires

 - regression fix for special Logitech unifiying receiver 0xc52f, from
   Hans de Goede

 - a few device ID additions to logitech driver, from Hans de Goede

 - fix for Bluetooth support on 2nd-gen Wacom Intuos Pro, from Jason
   Gerecke

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: logitech-dj: Fix 064d:c52f receiver support
  Revert "HID: core: Call request_module before doing device_add"
  Revert "HID: core: Do not call request_module() in async context"
  Revert "HID: Increase maximum report size allowed by hid_field_extract()"
  HID: a4tech: fix horizontal scrolling
  HID: hyperv: Add a module description line
  HID: logitech-hidpp: Add support for the S510 remote control
  HID: multitouch: handle faulty Elo touch device
  HID: wacom: Sync INTUOSP2_BT touch state after each frame if necessary
  HID: wacom: Correct button numbering 2nd-gen Intuos Pro over Bluetooth
  HID: wacom: Send BTN_TOUCH in response to INTUOSP2_BT eraser contact
  HID: wacom: Don't report anything prior to the tool entering range
  HID: wacom: Don't set tool type until we're in range
  HID: rmi: Use SET_REPORT request on control endpoint for Acer Switch 3 and 5
  HID: logitech-hidpp: add support for the MX5500 keyboard
  HID: logitech-dj: add support for the Logitech MX5500's Bluetooth Mini-Receiver
  HID: i2c-hid: add iBall Aer3 to descriptor override
2019-06-13 05:59:05 -10:00
Thomas Gleixner
2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00
Benjamin Tissoires
81bcbad53b HID: multitouch: handle faulty Elo touch device
Since kernel v5.0, one single win8 touchscreen device failed.
And it turns out this is because it reports 2 InRange usage per touch.

It's a first, and I *really* wonder how this was allowed by Microsoft in
the first place. But IIRC, Breno told me this happened *after* a firmware
upgrade...

Anyway, better be safe for those crappy devices, and make sure we have
a full slot before jumping to the next.
This won't prevent all crappy devices to fail here, but at least we will
have a safeguard as long as the contact ID and the X and Y coordinates
are placed in the report after the grabage.

Fixes: 01eaac7e57 ("HID: multitouch: remove one copy of values")
CC: stable@vger.kernel.org # v5.0+
Reported-and-tested-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2019-05-22 12:37:37 +02:00
Mikael Wikström
8d5037dca7 HID: multitouch: Lenovo X1 Tablet Gen3 trackpoint and buttons
Add support for the trackpoint and three mouse buttons on the type cover
of the Lenovo X1 Tablet Gen3.

This is the same as with the 2nd generation Lenovo X1 Tablet.

Signed-off-by: Mikael Wikström <leakim.wikstrom@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2019-02-14 00:05:43 +01:00
Kai-Heng Feng
12d43aacf9 HID: multitouch: Add pointstick support for Cirque Touchpad
Cirque Touchpad/Pointstick combo is similar to Alps devices, it requires
MT_CLS_WIN_8_DUAL to expose its pointstick as a mouse.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-19 16:26:59 +01:00
Benjamin Tissoires
7ffa13be49 HID: multitouch: simplify the application retrieval
Now that the application is simply stored in struct hid_input, we can
overwrite it in mt_input_mapping() for the faulty egalax and have a
simpler suffix processing in mt_input_configured()

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-09-04 22:32:59 +02:00
Benjamin Tissoires
0d6c301140 HID: core: fix grouping by application
commit f07b3c1da9 ("HID: generic: create one input report per
application type") was effectively the same as MULTI_INPUT:
hidinput->report was never set, so hidinput_match_application()
always returned null.

Fix that by testing against the real application.

Note that this breaks some old eGalax touchscreens that expect MULTI_INPUT
instead of HID_QUIRK_INPUT_PER_APP. Enable this quirk for backward
compatibility on all non-Win8 touchscreens.

link: https://bugzilla.kernel.org/show_bug.cgi?id=200847
link: https://bugzilla.kernel.org/show_bug.cgi?id=200849
link: https://bugs.archlinux.org/task/59699
link: https://github.com/NixOS/nixpkgs/issues/45165

Cc: stable@vger.kernel.org # v4.18+
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-09-04 21:31:43 +02:00
Benjamin Tissoires
ec6adef5fb HID: multitouch: fix Elan panels with 2 input modes declaration
When implementing commit 7f81c8db54 ("HID: multitouch: simplify
the settings of the various features"), I wrongly removed a test
that made sure we never try to set the second InputMode feature
to something else than 0.

This broke badly some recent Elan panels that now forget to send the
click button in some area of the touchpad.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=200899
Fixes: 7f81c8db54 ("HID: multitouch: simplify the settings of the various features")
Cc: stable@vger.kernel.org # v4.18+
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-09-04 21:31:21 +02:00
Dmitry Torokhov
28a042a3b7 HID: multitouch: handle palm for touchscreens
Usually, there is no palm rejection for touchscreens. You don't rest
your palm on the touchscreen while interacting with it.
However, some wacom devices do so because you can rest your palm while
interacting with the stylus.

Unfortunately, the spec for touchscreens[1] is less precise than the one
for touchpads[2]. This leads to a situation where it's 'legitimate'
for a touchscreen to provide both tipswitch off and confidence off in the
same report.

Work around that by keeping the slot active for one frame where we report
MT_TOOL_PALM, and then synthesizing the release event in a separate frame.
frame

Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[rebased and new commit message]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-17 15:33:48 +02:00
Dmitry Torokhov
f902437459 HID: multitouch: touchscreens also use confidence reports
According to [1] the confidence is used not only by touchpad devices,
but also by touchscreens.

[1] https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/touchscreen-required-hid-top-level-collections

Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[rebased]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-17 15:33:47 +02:00
Dmitry Torokhov
9152c7d77d HID: multitouch: report MT_TOOL_PALM for non-confident touches
According to Microsoft specification [1] for Precision Touchpads (and
Touchscreens) the devices use "confidence" reports to signal accidental
touches, or contacts that are "too large to be a finger". Instead of
simply marking contact inactive in this case (which causes issues if
contact was originally proper and we lost confidence in it later, as
this results in accidental clicks, drags, etc), let's report such
contacts as MT_TOOL_PALM and let userspace decide what to do.

[1] https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/touchpad-windows-precision-touchpad-collection

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[splitted and rebased]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-17 15:33:47 +02:00
Benjamin Tissoires
ba6b055e0f HID: input: enable Totem on the Dell Canvas 27
The Dell Canvas 27 has a tool that can be put on the surface and acts
as a dial. The firmware processes the detection of the tool and forward
regular HID reports with X, Y, Azimuth, rotation, width/height.

The firmware also exports Contact ID, Countact Count which may hint that
several totems can be used at the same time (the FW only supports one).

We can tell that MT_TOOL_DIAL will be reported by setting the min/max
of ABS_MT_TOOL_TYPE to MT_TOOL_DIAL.

This tool is aimed at being used by the system and not the applications,
so the user space processing should not go through the regular touch
inputs.
We set INPUT_PROP_DIRECT which applies ID_INPUT_TOUCHSCREEN to this new
type of devices, but we will counter this for the time being with the
special udev hwdb entry mentioned above.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1511846

Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-17 15:33:47 +02:00
Benjamin Tissoires
01eaac7e57 HID: multitouch: remove one copy of values
The current way of handling multitouch data is not very straightforward:
- in mt_event() we do nothing
- in mt_report() we:
  - do some gym to fetch the scantime and the contact count
  - then iterate over the input fields where we copy the data to a
    temporary place
  - when we see the last field in a slot, we then use this data to emit
    the input data

A more streamlined way is to first get all of the address in the report
of all fields, and then just pick the fields we are interested in in
mt_report()

Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-17 15:33:47 +02:00
Benjamin Tissoires
8dfe14b3b4 HID: multitouch: ditch mt_report_id
Now that the driver can handle more than one multitouch collection in
a single HID device, ditch the last bit that contains us to use only
one mt collection.

Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-17 15:33:47 +02:00
Benjamin Tissoires
3ceb382644 HID: multitouch: store a per application quirks value
If a device has more than one multitouch collection, there is a chance
we need per tool quirks. This is the case for the Totem on the Dell
Canvas.

Note that thesysfs attribute quirks can now get out of sync, but there
should not be much users of it as it's debugging only.

Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-17 15:33:47 +02:00
Benjamin Tissoires
f146d1c4d7 HID: multitouch: Store per collection multitouch data
Currently, hid-multitouch can only handle one multitouch collection at
a time. This is an issue for the Dell Canvas, as the Totem (a dial tool)
is also using a multitouch-like collection.

Factor out the multitouch collection data in their own struct.

Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-17 15:33:47 +02:00
Benjamin Tissoires
cf6d15d7b1 HID: multitouch: make sure the static list of class is not changed
const is a magic keyword here :)

Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-17 15:33:47 +02:00
Ben Chan
abb36fe691 HID: multitouch: fix calculation of last slot field in multi-touch reports
According to [1] and also seemingly agreed by [2], the Scan Time usage
(0x0D 0x56) is a report level usage, not a contact level usage.

However, the hid-multitouch driver currently includes HID_DG_SCANTIME
when calculating `td->last_slot_field', which may lead to
mt_complete_slot() being prematurely called in certain cases (e.g. when
each touch input report includes more than one contact and the Scan Time
usage appears before any contact logical collection).

This patch fixes the issue by skipping mt_store_field() on
HID_DG_SCANTIME, similar to how HID_DG_CONTACTCOUNT and
HID_DG_CONTACTMAX are handled.

[1] https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-precision-touchpad-required-hid-top-level-collections#windows-precision-touchpad-input-reports
[2] https://patchwork.kernel.org/patch/1742181/

Fixes: 29cc309d8b ("HID: hid-multitouch: forward MSC_TIMESTAMP")
Signed-off-by: Ben Chan <benchan@chromium.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-05-30 08:53:09 +02:00
Jiri Kosina
99c703acad HID: multitouch: fix types returned from mt_need_to_apply_feature()
Some exit paths from mt_need_to_apply_feature() returned int instead
of bool; fix that up.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-05-16 11:02:07 +02:00
Benjamin Tissoires
02946f4b43 HID: multitouch: implement precision touchpad latency and switches
The Win 8.1 precision touchpad spec introduce new modes for touchpads
that can come in handy[1].

Implement the settings of these modes, so we are not taken off-guard if
a firmware decides to enforce them.

[1] https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-precision-touchpad-required-hid-top-level-collections

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-04-26 14:17:55 +02:00
Benjamin Tissoires
7f81c8db54 HID: multitouch: simplify the settings of the various features
The Win8 spec also declare other features we want to support:
latency and surface and button switches.

Though it doesn't seem we need to activate those by default, we have been
proved in the past that manufacturers rely on the Windows driver behavior
so we better mimic it to prevent further issues.

The current way of setting the features is cumbersome. It avoids iterating
over the list of features, but the way we store/retrieve the data just
doesn't scale with more than two values.

So iterate over the features when we decide to switch on the device and
make it simpler to extend.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-04-26 14:17:55 +02:00
Benjamin Tissoires
40ec260363 HID: multitouch: make use of HID_QUIRK_INPUT_PER_APP
We now have HID_QUIRK_INPUT_PER_APPLICATION that splits the devices
into several devices. This helps us as we can now rely on hid-input
to set the names for us.

Also, this helps removing some magical numbers '0' when calling
.input_configured().

The only thing to take care of is that the field .report in struct
hid_input is now null. We need to iterate over the full list of
reports attached to a hid_input.

This is required for some Advanced Silicon touchscreen to correctly apply
the HID_QUIRK_INPUT_PER_APPLICATION as they have 2 reports associated
with the hidinput node. One contains the Input data, the other one
contains the Output data.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-04-26 14:17:55 +02:00
Jiri Kosina
e2d39e0f95 Merge branch 'for-4.17/upstream' into for-linus
Pull a few small generic code cleanups.
2018-04-05 13:28:46 +02:00
Jiri Kosina
af73686e7b Merge branch 'for-4.17/multitouch' into for-linus
Pull Razer Blade Stealth support improvement and a few generic cleanups
2018-04-05 13:27:22 +02:00
Benjamin Tissoires
2904e68ff2 HID: core: reset the quirks before calling probe again
Given that now the quirk handling is done in hid-quirk.c, we can actually
reset the quirks before calling .probe(), so that the drivers do not need
to keep track of initial quirks.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-03-23 15:46:09 +01:00
Benjamin Tissoires
adaabbf48f HID: multitouch: do not set HID_QUIRK_NO_INIT_REPORTS
It is set by default now, so there is no point setting it in the driver

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-03-23 15:46:09 +01:00
Benjamin Tissoires
39335d1cbb HID: core: remove the need for HID_QUIRK_NO_EMPTY_INPUT
There is no real point of registering an empty input node.
This should be default, but given some drivers need the blank input
node to set it up during input_configured, we need to postpone
the check for hidinput_has_been_populated().

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-03-23 15:44:57 +01:00
Benjamin Tissoires
843e475f94 HID: multitouch: remove dead zones of Razer Blade Stealth
The Razer Blade Stealth detects palms too aggressively and this creates
a dead zone around the touchpad. Users like being able to use their
entire touchpad, so we should probably not filter out the "palm" events
from the device and report them as regular touches, leaving the palm
detection up to the upper stack

Link: https://bugs.freedesktop.org/show_bug.cgi?id=105409

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-03-23 15:44:57 +01:00