Kernel device trees may indicate linux,code = KEY_POWER or KEY_RESTART, mostly for gpio-keys. Make barebox able to act on them by registering an appropriate input notifier. Suggested-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx> Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- drivers/input/Kconfig | 6 ++++++ drivers/input/Makefile | 1 + drivers/input/specialkeys.c | 36 ++++++++++++++++++++++++++++++++++++ 3 files changed, 43 insertions(+) create mode 100644 drivers/input/specialkeys.c diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig index 1f89ae3892dc..be061683fb0a 100644 --- a/drivers/input/Kconfig +++ b/drivers/input/Kconfig @@ -64,4 +64,10 @@ config KEYBOARD_USB help This driver implements support for usb keyboard. +config INPUT_SPECIALKEYS + bool "Special keys handler" + select INPUT + help + Say Y here to handle key events like KEY_RESTART and KEY_POWER. + endmenu diff --git a/drivers/input/Makefile b/drivers/input/Makefile index e694a98d1087..36a4204d5308 100644 --- a/drivers/input/Makefile +++ b/drivers/input/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o obj-$(CONFIG_KEYBOARD_TWL6030) += twl6030_pwrbtn.o obj-$(CONFIG_KEYBOARD_IMX_KEYPAD) += imx_keypad.o obj-$(CONFIG_KEYBOARD_QT1070) += qt1070.o +obj-$(CONFIG_INPUT_SPECIALKEYS) += specialkeys.o diff --git a/drivers/input/specialkeys.c b/drivers/input/specialkeys.c new file mode 100644 index 000000000000..51ee43218192 --- /dev/null +++ b/drivers/input/specialkeys.c @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2019 Ahmad Fatoum, Pengutronix + +#include <common.h> +#include <restart.h> +#include <poweroff.h> +#include <init.h> +#include <input/input.h> +#include <dt-bindings/input/linux-event-codes.h> + +static void input_specialkeys_notify(struct input_notifier *in, + struct input_event *ev) +{ + switch (ev->code) { + case KEY_RESTART: + pr_debug("code: %d. Triggering reset.\n", ev->code); + restart_machine(); + break; + + case KEY_POWER: + pr_debug("code: %d. Triggering poweroff.\n", ev->code); + poweroff_machine(); + break; + } + + pr_debug("ignoring code: %d\n", ev->code); +} + +static struct input_notifier notifier; + +static int input_specialkeys_init(void) +{ + notifier.notify = input_specialkeys_notify; + return input_register_notfier(¬ifier); +} +late_initcall(input_specialkeys_init); -- 2.23.0 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox