| /* 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 | |
| */ | |
| struct gpio_keys_button { | |
| unsigned int code; | |
| int gpio; | |
| int active_low; | |
| const char *desc; | |
| unsigned int type; | |
| int wakeup; | |
| int wakeup_event_action; | |
| int debounce_interval; | |
| bool can_disable; | |
| int value; | |
| unsigned int irq; | |
| }; | |
| /** | |
| * 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 { | |
| const struct gpio_keys_button *buttons; | |
| int nbuttons; | |
| unsigned int poll_interval; | |
| unsigned int rep:1; | |
| int (*enable)(struct device *dev); | |
| void (*disable)(struct device *dev); | |
| const char *name; | |
| }; | |
| #endif |