1#ifndef _GPIO_KEYS_H
2#define _GPIO_KEYS_H
3
4struct device;
5struct 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 */
23struct 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 */
48struct 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