- 18 May, 2023 7 commits
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Dmitry Torokhov authored
Upon receiving a PS/2 command the device and controller are supposed to stop sending normal data (scancodes or movement packets) and instead immediately start delivering ACK/NAK and command response. Unfortunately often EC has an output buffer which may contain latched data by the time the EC receives a command from the host. The kernel used to ignore such data, but that may cause "stuck" keys if the data dropped happens to be a break code or a part of a break code. This occasionally happens, for example, on Chromebooks when the kernel tries to toggle CapsLock LED on a keyboard while user releases Alt+Search keyboard shortcut. Fix this by passing the first non-ACK byte to the normal handler for a handful of PS/2 commands that are expected to be used during normal device operation (as opposed to probe/configuration time). Reviewed-by:
Raul E Rangel <rrangel@chromium.org> Link: https://lore.kernel.org/r/20230511185252.386941-8-dmitry.torokhov@gmail.comSigned-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Dmitry Torokhov authored
Instead of exposing inner workings of libps2 to drivers such as atkbd and psmouse, have them define pre-receive and receive callbacks, and provide a common handler that can be used with underlying serio port. While at this add kerneldoc to the module. Link: https://lore.kernel.org/r/ZGK81cxqjr/KS1kA@google.comSigned-off-by:
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Dmitry Torokhov authored
When aborting PS/2 command the kernel should [re]set all flags before waking up waiters, otherwise waiting thread may read obsolete values of flags. Reported-by:
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Dmitry Torokhov authored
Do not try to process "resend" or "reject" responses from the device as normal response data for a command. Reviewed-by:
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Dmitry Torokhov authored
It is not entirely correct that libps2 sets PS2_FLAG_CMD1 after the device acknowledges each byte sent to the device by the host. Rework the code so that PS2_FLAG_CMD1 and PS2_FLAG_CMD are set only once, at the beginning of PS/2 command execution. Reviewed-by:
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Dmitry Torokhov authored
When getting unexpected data while waiting for an acknowledgement it does not matter what command phase is currently executed, and ps2_handle_ack() should indicate that no further processing is needed for the received data byte. Remove PS2_FLAG_ACK_CMD and associated handling. Note that while it is possible to make ps2_handle_ack (and ps2_handle_repsonse) return void, it will be done when the code will be converted to common PS/2 interrupt handler later. Reviewed-by:
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Dmitry Torokhov authored
In preparation of having unified interrupt handler for PS/2 devices, instead of attaching instances of psmouse and atkbd structures as serio's driver data, switch to attaching ps2dev instances. Reviewed-by:
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- 17 May, 2023 1 commit
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Uwe Kleine-König authored
After commit b8a1a4cd ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f4 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230517164645.162294-1-u.kleine-koenig@pengutronix.deSigned-off-by:
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- 11 May, 2023 2 commits
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Krzysztof Kozlowski authored
Convert the Cypress All Points Addressable (APA) I2C Touchpad / Trackpad bindings to DT schema. Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230511102559.175088-1-krzysztof.kozlowski@linaro.orgSigned-off-by:
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Marek Vasut authored
Instead of hardcoding IRQ trigger type to IRQF_TRIGGER_HIGH, let's respect the settings specified in the firmware description. Fixes: e27c7292 ("Input: add driver for ADXL345/346 Digital Accelerometers") Signed-off-by:
Marek Vasut <marex@denx.de> Acked-by:
Michael Hennerich <michael.hennerich@analog.com> Link: https://lore.kernel.org/r/20230509203555.549158-1-marex@denx.deSigned-off-by:
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- 08 May, 2023 3 commits
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Luca Weiss authored
Some pwm vibrators have a dedicated enable GPIO that needs to be set high so that the vibrator works. Add support for that optionally. Signed-off-by:
Luca Weiss <luca@z3ntu.xyz> Reviewed-by:
Brian Masney <bmasney@redhat.com> Reviewed-by:
Sebastian Reichel <sre@kernel.org> Reviewed-by:
Caleb Connolly <caleb.connolly@linaro.org> Link: https://lore.kernel.org/r/20230427-hammerhead-vibra-v1-3-e87eeb94da51@z3ntu.xyzSigned-off-by:
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Luca Weiss authored
Make sure all printed messages end with a newline. Signed-off-by:
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Luca Weiss authored
Some pwm vibrators have a dedicated enable GPIO that needs to be set high so that the vibrator works. Document that. Signed-off-by:
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- 06 May, 2023 1 commit
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Marek Vasut authored
Probe the touch controller driver even if resolution information is not available. This can happen e.g. in case the touch controller suffered a failed firmware update and is stuck in bootloader mode. Signed-off-by:
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- 05 May, 2023 3 commits
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Philipp Puschmann authored
The touch controller needs some time to wake-up after setting the wake-up gpio. Without having a delay after wake-up probing regularly fails in edt_ft5x06_ts_identify() with an error (i.e. EREMOTEIO) that was caused by a failed i2c transfer. The datasheet sets the wake-up time to 5 ms, although it is not entirely clear. Signed-off-by:
Philipp Puschmann <p.puschmann@pironex.com> Link: https://lore.kernel.org/r/20230505115823.545803-1-p.puschmann@pironex.comSigned-off-by:
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Maximilian Weigand authored
The touchscreen can be put into a deep sleep state that prevents it from emitting touch irqs. Put the touchscreen into deep sleep during suspend if it is not marked as a wakeup source. This also fixes a problem with the touchscreen getting unresponsive after system resume when a falling edge trigger is used for the interrupt. When left on during suspend, the touchscreen would pull the interrupt line down in response to touch events, leaving the interrupt effectively disabled after resume. Signed-off-by:
Maximilian Weigand <mweigand@mweigand.net> Reviewed-by:
Alistair Francis <alistair@alistair23.me> Link: https://lore.kernel.org/r/20230504120316.408687-2-mweigand2017@gmail.comSigned-off-by:
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Dmitry Torokhov authored
Properly initialize input_device_id structure in input_test_match_device_id test to make sure it contains no garbage causing the test to randomly fail. Fixes: fdefcbdd ("Input: Add KUnit tests for some of the input core helper functions") Reported-by:
Geert Uytterhoeven <geert@linux-m68k.org> Tested-by:
Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by:
Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/ZFLI7T2qZTGJ1UUK@google.comSigned-off-by:
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- 02 May, 2023 14 commits
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Dmitry Torokhov authored
input_abs_set_val() can nominally call input_alloc_absinfo() which may allocate memory with GFP_KERNEL flag. This does not happen when input_abs_set_val() is called by the input core to set current MT slot when handling a new input event, but it trips certain static analyzers. Rearrange the code to access the relevant structures directly. Reported-by:
Teng Qi <starmiku1207184332@gmail.com> Reviewed-by:
Peter Hutterer <peter.hutterer@who-t.net> Link: https://lore.kernel.org/r/ZFBg379uuHjf+YEM@google.comSigned-off-by:
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Geert Uytterhoeven authored
While KUnit tests that cannot be built as a loadable module must depend on "KUNIT=y", this is not true for modular tests, where it adds an unnecessary limitation. Fix this by relaxing the dependency to "KUNIT". Fixes: fdefcbdd ("Input: Add KUnit tests for some of the input core helper functions") Signed-off-by:
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Geert Uytterhoeven authored
With CONFIG_DEBUG_SLAB=y: # Subtest: input_core 1..3 input: Test input device as /devices/virtual/input/input1 8<--- cut here --- Unable to handle kernel paging request at virtual address 6b6b6dd7 when read ... __lock_acquire from lock_acquire+0x26c/0x300 lock_acquire from _raw_spin_lock_irqsave+0x50/0x64 _raw_spin_lock_irqsave from devres_remove+0x20/0x7c devres_remove from devres_destroy+0x8/0x24 devres_destroy from input_free_device+0x2c/0x60 input_free_device from kunit_try_run_case+0x70/0x94 [kunit] Without CONFIG_DEBUG_SLAB=y: KTAP version 1 # Subtest: input_core 1..3 input: Test input device as /devices/virtual/input/input1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 694 at lib/refcount.c:28 refcount_warn_saturate+0x54/0x100 refcount_t: underflow; use-after-free. ... Call Trace: [<0037cad4>] dump_stack+0xc/0x10 [<00377614>] __warn+0x7e/0xb4 [<0037768c>] warn_slowpath_fmt+0x42/0x62 [<001eee1c>] refcount_warn_saturate+0x54/0x100 [<000b1d34>] kfree_const+0x0/0x20 [<0036290a>] __kobject_del+0x0/0x6e [<001eee1c>] refcount_warn_saturate+0x54/0x100 [<00362a1a>] kobject_put+0xa2/0xb6 [<11965770>] kunit_generic_run_threadfn_adapter+0x0/0x1c [kunit] As per the comments for input_allocate_device() and input_register_device(), input_free_device() must be called only to free devices that have not been registered. input_unregister_device() already calls input_put_device(), thus leading to a use-after-free. Moreover, the kunit_suite.exit() method is called after every test case, even on failures. As the test itself already does cleanups in its failure paths, this may lead to a second use-after-free. Fix the first issue by dropping the call to input_allocate_device() from input_test_exit(). Fix the second issue by making the cleanup code conditional on a successful test. Fixes: fdefcbdd ("Input: Add KUnit tests for some of the input core helper functions") Signed-off-by: -
Biswarup Pal authored
Currently, uinput doesn't use the input_set_timestamp API, so any event injected using uinput is not accurately timestamped in terms of measuring when the actual event happened. Hence, call the input_set_timestamp API from uinput in order to provide a more accurate sense of time for the event. Propagate only the timestamps which are a) positive, b) within a pre-defined offset (10 secs) from the current time, and c) not in the future. Signed-off-by:
Biswarup Pal <biswarupp@google.com> Reviewed-by:
Siarhei Vishniakou <svv@google.com> Link: https://lore.kernel.org/r/20230427000152.1407471-1-biswarupp@google.comSigned-off-by:
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André Apitzsch authored
Add support for touch keys found in some Atmel touch controller configurations. Reviewed-by:
Claudiu Beznea <claudiu.beznea@microchip.com> Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
André Apitzsch <git@apitzsch.eu> Link: https://lore.kernel.org/r/20230407-atmel_keys-v2-2-92446a4343cb@apitzsch.euSigned-off-by:
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André Apitzsch authored
In some configurations the touch controller can support the touch keys. Document the linux,keycodes property that enables those keys and specifies the keycodes that should be used to report the key events. Reviewed-by:
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Michał Mirosław authored
<linux/i8042.h> include uses ENODEV when included with !IS_ENABLED(CONFIG_SERIO_I8042) and so need to include it. Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Link: https://lore.kernel.org/r/49fd4d400d1ab62095e5ed75a6637f883c0d071b.1682795105.git.mirq-linux@rere.qmqm.plSigned-off-by:
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Duoming Zhou authored
The watchdog_timer can schedule tx_timeout_task and watchdog_work can also arm watchdog_timer. The process is shown below: ----------- timer schedules work ------------ cyttsp4_watchdog_timer() //timer handler schedule_work(&cd->watchdog_work) ----------- work arms timer ------------ cyttsp4_watchdog_work() //workqueue callback function cyttsp4_start_wd_timer() mod_timer(&cd->watchdog_timer, ...) Although del_timer_sync() and cancel_work_sync() are called in cyttsp4_remove(), the timer and workqueue could still be rearmed. As a result, the possible use after free bugs could happen. The process is shown below: (cleanup routine) | (timer and workqueue routine) cyttsp4_remove() | cyttsp4_watchdog_timer() //timer cyttsp4_stop_wd_timer() | schedule_work() del_timer_sync() | | cyttsp4_watchdog_work() //worker | cyttsp4_start_wd_timer() | mod_timer() cancel_work_sync() | | cyttsp4_watchdog_timer() //timer | schedule_work() del_timer_sync() | kfree(cd) //FREE | | cyttsp4_watchdog_work() // reschedule! | cd-> //USE This patch changes del_timer_sync() to timer_shutdown_sync(), which could prevent rearming of the timer from the workqueue. Fixes: 17fb1563 ("Input: cyttsp4 - add core driver for Cypress TMA4XX touchscreen devices") Signed-off-by:Duoming Zhou <duoming@zju.edu.cn> Link: https://lore.kernel.org/r/20230421082919.8471-1-duoming@zju.edu.cnSigned-off-by:
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Maximilian Weigand authored
The touchscreen can be used to wake up systems from sleep and therefore the wakeup-source entry should be included in the documentation. Signed-off-by:
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Maximilian Weigand authored
The removed lines are remnants of the vendor driver and are not used in the upstream driver. Signed-off-by:
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Luca Weiss authored
First of all, previously the 16-bit magnitude was written as-is to the device which actually discarded the upper 8 bits since the device has 8-bit registers only. This meant that a strong_magnitude of 0xFF00 would result in 0. To correct this shift the strong_magnitude / weak_magnitude input values so we discard the lower 8 bits and keep the upper bits instead. Secondly the RTP mode that is used by default interprets the values as signed (2s complement), so 0x81 = 0%, 0x00 = 50%, 0x7F = 100%. This doesn't match the FF_RUMBLE interface at all, so let's tell the device to interpret the data as unsigned instead which gets us 0x00 = 0% and 0xFF = 100%. As last change switch ERM to using "Closed-Loop Mode, Unidirectional" instead of "Open-Loop Mode" since it's recommended by the datasheet compared to open loop and better matches our use case of 0% - 100% vibration. Signed-off-by:
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Luca Weiss authored
Since the driver has disabled regmap caching with REGCACHE_NONE, it's warning us that we provide defaults that are not used. Remove them. [ 0.561159] drv260x-haptics 0-005a: No cache used with register defaults set! Fixes: 7132fe4f ("Input: drv260x - add TI drv260x haptics driver") Signed-off-by:
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Luca Weiss authored
When doing the initial startup there's no need to poll without any delay and spam the I2C bus. Let's sleep 15ms between each attempt, which is the same time as used in the vendor driver. Fixes: 7132fe4f ("Input: drv260x - add TI drv260x haptics driver") Signed-off-by:
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Luca Weiss authored
ANANLOG should be ANALOG. Fix the typo. Fixes: 7132fe4f ("Input: drv260x - add TI drv260x haptics driver") Signed-off-by:
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- 01 May, 2023 1 commit
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Dmitry Torokhov authored
This reverts commit db7220c4 because it causes crashes when trying to dereference xpad->dev->dev in xpad_probe() which has not been set up yet. Reported-by: syzbot+a3f758b8d8cb7e49afec@syzkaller.appspotmail.com Reported-by:
Dongliang Mu <dzm91@hust.edu.cn> Link: https://groups.google.com/g/syzkaller-bugs/c/iMhTgpGuIbMSigned-off-by:
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- 14 Apr, 2023 5 commits
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Peng Fan authored
Convert the binding doc to dt schema, and also fixed the example from fixed-regulator to regulator-fixed. Signed-off-by:
Peng Fan <peng.fan@nxp.com> Reviewed-by:
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Vicki Pfau authored
This commit explicitly disables the audio interface the same way the official driver does. This is needed for some controllers, such as the PowerA Enhanced Wired Controller for Series X|S (0x20d6:0x200e) to report the guide button. Signed-off-by:
Vicki Pfau <vi@endrift.com> Link: https://lore.kernel.org/r/20230411031650.960322-3-vi@endrift.comSigned-off-by:
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Vicki Pfau authored
Wired GIP devices present multiple interfaces with the same USB identification other than the interface number. This adds constants for differentiating two of them and uses them where appropriate Signed-off-by:
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Jiapeng Chong authored
No functional modification involved. drivers/input/rmi4/rmi_bus.c:300: warning: expecting prototype for rmi_register_function_handler(). Prototype was for __rmi_register_function_handler() instead. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Link: https://lore.kernel.org/r/20230209040710.111456-1-jiapeng.chong@linux.alibaba.comSigned-off-by:
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Miaoqian Lin authored
rpi_firmware_get() take reference, we need to release it in error paths as well. Use devm_rpi_firmware_get() helper to handling the resources. Also remove the existing rpi_firmware_put(). Fixes: 0b9f28fe ("Input: add official Raspberry Pi's touchscreen driver") Fixes: 3b8ddff7 ("input: raspberrypi-ts: Release firmware handle when not needed") Signed-off-by:
Miaoqian Lin <linmq006@gmail.com> Reviewed-by:
Mattijs Korpershoek <mkorpershoek@baylibre.com> Link: https://lore.kernel.org/r/20221223074657.810346-1-linmq006@gmail.comSigned-off-by:
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- 10 Apr, 2023 3 commits
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Daniel Golle authored
After starting to use regmap API to access registers the edt-ft5x06 driver depends on symbols provided by REGMAP_I2C: edt-ft5x06.o: in function `edt_ft5x06_ts_probe': edt-ft5x06.c:1154: undefined reference to `__regmap_init_i2c' edt-ft5x06.o: in function `edt_ft5x06_ts_identify': edt-ft5x06.c:897: undefined reference to `__regmap_init_i2c' Make sure support for I2C regmap is actually selected by adding this dependency to Kconfig. Fixes: 9dfd9708 ("Input: edt-ft5x06 - convert to use regmap API") Signed-off-by:
Daniel Golle <daniel@makrotopia.org> Link: https://lore.kernel.org/r/ZDRBExF1xmxalMZc@makrotopia.orgSigned-off-by:
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JungHoon Hyun authored
The driver had the code to differentiate between finger and palm touches, but did not use this information when reporting contacts. Change it so that proper "tool" type is assigned to reported contacts. Signed-off-by:
JungHoon Hyun <hyunjunghoon@melfas.com> Signed-off-by:
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Jiapeng Chong authored
Function input_set_abs_params() has already set EV_ABS bit for us. drivers/input/misc/cma3000_d0x.c:328 cma3000_init() warn: inconsistent indenting. Reported-by:
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