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