1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 249015beeSDavid Brownell #ifndef _GPIO_KEYS_H 349015beeSDavid Brownell #define _GPIO_KEYS_H 449015beeSDavid Brownell 52b6e6811SMatti Vaittinen #include <linux/types.h> 62b6e6811SMatti Vaittinen 7b18db3d9SHeiko Stübner struct device; 8b18db3d9SHeiko Stübner 9542ad4f8SAndy Shevchenko /** 10542ad4f8SAndy Shevchenko * struct gpio_keys_button - configuration parameters 11542ad4f8SAndy Shevchenko * @code: input event code (KEY_*, SW_*) 12542ad4f8SAndy Shevchenko * @gpio: %-1 if this key does not support gpio 13542ad4f8SAndy Shevchenko * @active_low: %true indicates that button is considered 14542ad4f8SAndy Shevchenko * depressed when gpio is low 15542ad4f8SAndy Shevchenko * @desc: label that will be attached to button's gpio 16542ad4f8SAndy Shevchenko * @type: input event type (%EV_KEY, %EV_SW, %EV_ABS) 17542ad4f8SAndy Shevchenko * @wakeup: configure the button as a wake-up source 1883fc580dSJeffy Chen * @wakeup_event_action: event action to trigger wakeup 19542ad4f8SAndy Shevchenko * @debounce_interval: debounce ticks interval in msecs 20542ad4f8SAndy Shevchenko * @can_disable: %true indicates that userspace is allowed to 21542ad4f8SAndy Shevchenko * disable button via sysfs 22542ad4f8SAndy Shevchenko * @value: axis value for %EV_ABS 23542ad4f8SAndy Shevchenko * @irq: Irq number in case of interrupt keys 24*3717194fSTony Lindgren * @wakeirq: Optional dedicated wake-up interrupt 25542ad4f8SAndy Shevchenko */ 2649015beeSDavid Brownell struct gpio_keys_button { 27542ad4f8SAndy Shevchenko unsigned int code; 28542ad4f8SAndy Shevchenko int gpio; 2949015beeSDavid Brownell int active_low; 3092a47674SAlexander Stein const char *desc; 31542ad4f8SAndy Shevchenko unsigned int type; 32542ad4f8SAndy Shevchenko int wakeup; 3383fc580dSJeffy Chen int wakeup_event_action; 34542ad4f8SAndy Shevchenko int debounce_interval; 359e3af04fSMika Westerberg bool can_disable; 36542ad4f8SAndy Shevchenko int value; 37542ad4f8SAndy Shevchenko unsigned int irq; 38*3717194fSTony Lindgren unsigned int wakeirq; 3949015beeSDavid Brownell }; 4049015beeSDavid Brownell 41542ad4f8SAndy Shevchenko /** 42542ad4f8SAndy Shevchenko * struct gpio_keys_platform_data - platform data for gpio_keys driver 43542ad4f8SAndy Shevchenko * @buttons: pointer to array of &gpio_keys_button structures 44542ad4f8SAndy Shevchenko * describing buttons attached to the device 45542ad4f8SAndy Shevchenko * @nbuttons: number of elements in @buttons array 46542ad4f8SAndy Shevchenko * @poll_interval: polling interval in msecs - for polling driver only 47542ad4f8SAndy Shevchenko * @rep: enable input subsystem auto repeat 48542ad4f8SAndy Shevchenko * @enable: platform hook for enabling the device 49542ad4f8SAndy Shevchenko * @disable: platform hook for disabling the device 50542ad4f8SAndy Shevchenko * @name: input device name 51542ad4f8SAndy Shevchenko */ 5249015beeSDavid Brownell struct gpio_keys_platform_data { 530f78ba96SDmitry Torokhov const struct gpio_keys_button *buttons; 5449015beeSDavid Brownell int nbuttons; 55542ad4f8SAndy Shevchenko unsigned int poll_interval; 56542ad4f8SAndy Shevchenko unsigned int rep:1; 57173bdd74SShubhrajyoti D int (*enable)(struct device *dev); 58173bdd74SShubhrajyoti D void (*disable)(struct device *dev); 59542ad4f8SAndy Shevchenko const char *name; 6049015beeSDavid Brownell }; 6149015beeSDavid Brownell 6249015beeSDavid Brownell #endif 63