1 #ifndef _GPIO_KEYS_H 2 #define _GPIO_KEYS_H 3 4 struct device; 5 struct gpio_desc; 6 7 /** 8 * struct gpio_keys_button - configuration parameters 9 * @code: input event code (KEY_*, SW_*) 10 * @gpio: %-1 if this key does not support gpio 11 * @active_low: %true indicates that button is considered 12 * depressed when gpio is low 13 * @desc: label that will be attached to button's gpio 14 * @type: input event type (%EV_KEY, %EV_SW, %EV_ABS) 15 * @wakeup: configure the button as a wake-up source 16 * @debounce_interval: debounce ticks interval in msecs 17 * @can_disable: %true indicates that userspace is allowed to 18 * disable button via sysfs 19 * @value: axis value for %EV_ABS 20 * @irq: Irq number in case of interrupt keys 21 * @gpiod: GPIO descriptor 22 */ 23 struct gpio_keys_button { 24 unsigned int code; 25 int gpio; 26 int active_low; 27 const char *desc; 28 unsigned int type; 29 int wakeup; 30 int debounce_interval; 31 bool can_disable; 32 int value; 33 unsigned int irq; 34 struct gpio_desc *gpiod; 35 }; 36 37 /** 38 * struct gpio_keys_platform_data - platform data for gpio_keys driver 39 * @buttons: pointer to array of &gpio_keys_button structures 40 * describing buttons attached to the device 41 * @nbuttons: number of elements in @buttons array 42 * @poll_interval: polling interval in msecs - for polling driver only 43 * @rep: enable input subsystem auto repeat 44 * @enable: platform hook for enabling the device 45 * @disable: platform hook for disabling the device 46 * @name: input device name 47 */ 48 struct gpio_keys_platform_data { 49 struct gpio_keys_button *buttons; 50 int nbuttons; 51 unsigned int poll_interval; 52 unsigned int rep:1; 53 int (*enable)(struct device *dev); 54 void (*disable)(struct device *dev); 55 const char *name; 56 }; 57 58 #endif 59