diff options
Diffstat (limited to 'include/linux/gpio_keys.h')
| -rw-r--r-- | include/linux/gpio_keys.h | 57 |
1 files changed, 44 insertions, 13 deletions
diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h index a7e977ff4abf..80fa930b04c6 100644 --- a/include/linux/gpio_keys.h +++ b/include/linux/gpio_keys.h @@ -1,31 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _GPIO_KEYS_H #define _GPIO_KEYS_H +#include <linux/types.h> + struct device; +/** + * struct gpio_keys_button - configuration parameters + * @code: input event code (KEY_*, SW_*) + * @gpio: %-1 if this key does not support gpio + * @active_low: %true indicates that button is considered + * depressed when gpio is low + * @desc: label that will be attached to button's gpio + * @type: input event type (%EV_KEY, %EV_SW, %EV_ABS) + * @wakeup: configure the button as a wake-up source + * @wakeup_event_action: event action to trigger wakeup + * @debounce_interval: debounce ticks interval in msecs + * @can_disable: %true indicates that userspace is allowed to + * disable button via sysfs + * @value: axis value for %EV_ABS + * @irq: Irq number in case of interrupt keys + * @wakeirq: Optional dedicated wake-up interrupt + */ struct gpio_keys_button { - /* Configuration parameters */ - unsigned int code; /* input event code (KEY_*, SW_*) */ - int gpio; /* -1 if this key does not support gpio */ + unsigned int code; + int gpio; int active_low; const char *desc; - unsigned int type; /* input event type (EV_KEY, EV_SW, EV_ABS) */ - int wakeup; /* configure the button as a wake-up source */ - int debounce_interval; /* debounce ticks interval in msecs */ + unsigned int type; + int wakeup; + int wakeup_event_action; + int debounce_interval; bool can_disable; - int value; /* axis value for EV_ABS */ - unsigned int irq; /* Irq number in case of interrupt keys */ + int value; + unsigned int irq; + unsigned int wakeirq; }; +/** + * struct gpio_keys_platform_data - platform data for gpio_keys driver + * @buttons: pointer to array of &gpio_keys_button structures + * describing buttons attached to the device + * @nbuttons: number of elements in @buttons array + * @poll_interval: polling interval in msecs - for polling driver only + * @rep: enable input subsystem auto repeat + * @enable: platform hook for enabling the device + * @disable: platform hook for disabling the device + * @name: input device name + */ struct gpio_keys_platform_data { - struct gpio_keys_button *buttons; + const struct gpio_keys_button *buttons; int nbuttons; - unsigned int poll_interval; /* polling interval in msecs - - for polling driver only */ - unsigned int rep:1; /* enable input subsystem auto repeat */ + unsigned int poll_interval; + unsigned int rep:1; int (*enable)(struct device *dev); void (*disable)(struct device *dev); - const char *name; /* input device name */ + const char *name; }; #endif |