1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _GPIO_KEYS_H
3#define _GPIO_KEYS_H
4
5#include <linux/types.h>
6
7struct device;
8
9/**
10 * struct gpio_keys_button - configuration parameters
11 * @code:		input event code (KEY_*, SW_*)
12 * @gpio:		%-1 if this key does not support gpio
13 * @active_low:		%true indicates that button is considered
14 *			depressed when gpio is low
15 * @desc:		label that will be attached to button's gpio
16 * @type:		input event type (%EV_KEY, %EV_SW, %EV_ABS)
17 * @wakeup:		configure the button as a wake-up source
18 * @wakeup_event_action:	event action to trigger wakeup
19 * @debounce_interval:	debounce ticks interval in msecs
20 * @can_disable:	%true indicates that userspace is allowed to
21 *			disable button via sysfs
22 * @value:		axis value for %EV_ABS
23 * @irq:		Irq number in case of interrupt keys
24 * @wakeirq:		Optional dedicated wake-up interrupt
25 */
26struct gpio_keys_button {
27	unsigned int code;
28	int gpio;
29	int active_low;
30	const char *desc;
31	unsigned int type;
32	int wakeup;
33	int wakeup_event_action;
34	int debounce_interval;
35	bool can_disable;
36	int value;
37	unsigned int irq;
38	unsigned int wakeirq;
39};
40
41/**
42 * struct gpio_keys_platform_data - platform data for gpio_keys driver
43 * @buttons:		pointer to array of &gpio_keys_button structures
44 *			describing buttons attached to the device
45 * @nbuttons:		number of elements in @buttons array
46 * @poll_interval:	polling interval in msecs - for polling driver only
47 * @rep:		enable input subsystem auto repeat
48 * @enable:		platform hook for enabling the device
49 * @disable:		platform hook for disabling the device
50 * @name:		input device name
51 */
52struct gpio_keys_platform_data {
53	const struct gpio_keys_button *buttons;
54	int nbuttons;
55	unsigned int poll_interval;
56	unsigned int rep:1;
57	int (*enable)(struct device *dev);
58	void (*disable)(struct device *dev);
59	const char *name;
60};
61
62#endif
63