Messages in this thread | | | From | Andrzej Pietrasiewicz <> | Subject | [PATCH v4 0/7] Support inhibiting input devices | Date | Mon, 8 Jun 2020 13:22:04 +0200 |
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This is a quick respin of v3, with just two small changes, please see the changelog below.
Userspace might want to implement a policy to temporarily disregard input from certain devices.
An example use case is a convertible laptop, whose keyboard can be folded under the screen to create tablet-like experience. The user then must hold the laptop in such a way that it is difficult to avoid pressing the keyboard keys. It is therefore desirable to temporarily disregard input from the keyboard, until it is folded back. This obviously is a policy which should be kept out of the kernel, but the kernel must provide suitable means to implement such a policy.
Due to interactions with suspend/resume, a helper has been added for drivers to decide if the device is being used or not (PATCH 1/7) and it has been applied to relevant drivers (PATCH 2,4,5,6/7).
PATCH 7/7 adds support for inhibiting input devices.
This work is inspired by:
https://chromium.googlesource.com/chromiumos/third_party/kernel/+/45c2d7bb398f74adfae0017e20b224152fde3822
and
https://chromium.googlesource.com/chromiumos/third_party/kernel/+/4ce0e8a3697edb8fd071110b3af65014512061c7
In this respin the elan_i2c patch is dropped and converting it will be addressed later.
v3..v4: - updated the comment in input_open_device() (Hans) - used more straightforward locking pattern in adc/exynos (Michał)
v2..v3: - ignored autorepeat events in input_get_disposition() if a key is not pressed (Hans) - dropped inhibit()/uninhibit() driver callbacks (Hans) - split ACPI button patch into taking the lock and using the helper (Rafael) - dropped the elan_i2c conversion - fixed typos in exynos adc
v1..v2: - added input_device_enabled() helper and used it in drivers (Dmitry) - the fact of open() and close() being called in inhibit/uninhibit paths has been emphasized in the commit message of PATCH 6/7 (Dmitry)
Andrzej Pietrasiewicz (6): Input: add input_device_enabled() Input: use input_device_enabled() ACPI: button: Access input device's users under appropriate mutex ACPI: button: Use input_device_enabled() helper iio: adc: exynos: Use input_device_enabled() platform/x86: thinkpad_acpi: Use input_device_enabled()
Patrik Fimml (1): Input: Add "inhibited" property
drivers/acpi/button.c | 7 +- drivers/iio/adc/exynos_adc.c | 6 +- drivers/input/input.c | 125 ++++++++++++++++++-- drivers/input/joystick/xpad.c | 4 +- drivers/input/keyboard/ep93xx_keypad.c | 2 +- drivers/input/keyboard/gpio_keys.c | 4 +- drivers/input/keyboard/imx_keypad.c | 4 +- drivers/input/keyboard/ipaq-micro-keys.c | 2 +- drivers/input/keyboard/lpc32xx-keys.c | 4 +- drivers/input/keyboard/pmic8xxx-keypad.c | 4 +- drivers/input/keyboard/pxa27x_keypad.c | 2 +- drivers/input/keyboard/samsung-keypad.c | 4 +- drivers/input/keyboard/spear-keyboard.c | 8 +- drivers/input/keyboard/st-keyscan.c | 4 +- drivers/input/keyboard/tegra-kbc.c | 4 +- drivers/input/misc/drv260x.c | 4 +- drivers/input/misc/drv2665.c | 4 +- drivers/input/misc/drv2667.c | 4 +- drivers/input/misc/gp2ap002a00f.c | 4 +- drivers/input/misc/kxtj9.c | 4 +- drivers/input/misc/sirfsoc-onkey.c | 2 +- drivers/input/mouse/navpoint.c | 4 +- drivers/input/touchscreen/ad7879.c | 6 +- drivers/input/touchscreen/atmel_mxt_ts.c | 4 +- drivers/input/touchscreen/auo-pixcir-ts.c | 8 +- drivers/input/touchscreen/bu21029_ts.c | 4 +- drivers/input/touchscreen/chipone_icn8318.c | 4 +- drivers/input/touchscreen/cyttsp_core.c | 4 +- drivers/input/touchscreen/eeti_ts.c | 4 +- drivers/input/touchscreen/ektf2127.c | 4 +- drivers/input/touchscreen/imx6ul_tsc.c | 4 +- drivers/input/touchscreen/ipaq-micro-ts.c | 2 +- drivers/input/touchscreen/iqs5xx.c | 4 +- drivers/input/touchscreen/lpc32xx_ts.c | 4 +- drivers/input/touchscreen/melfas_mip4.c | 4 +- drivers/input/touchscreen/mms114.c | 6 +- drivers/input/touchscreen/pixcir_i2c_ts.c | 8 +- drivers/input/touchscreen/ucb1400_ts.c | 4 +- drivers/input/touchscreen/wm97xx-core.c | 14 ++- drivers/input/touchscreen/zforce_ts.c | 8 +- drivers/platform/x86/thinkpad_acpi.c | 4 +- include/linux/input.h | 14 ++- 42 files changed, 228 insertions(+), 96 deletions(-)
base-commit: 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 -- 2.17.1
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