Commit | Line | Data |
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f4e4c324 TL |
1 | /* |
2 | * GPIO switch definitions | |
3 | * | |
4 | * Copyright (C) 2006 Nokia Corporation | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #ifndef __ASM_ARCH_OMAP_GPIO_SWITCH_H | |
12 | #define __ASM_ARCH_OMAP_GPIO_SWITCH_H | |
13 | ||
14 | #include <linux/types.h> | |
15 | ||
16 | /* Cover: | |
17 | * high -> closed | |
18 | * low -> open | |
19 | * Connection: | |
20 | * high -> connected | |
21 | * low -> disconnected | |
22 | * Activity: | |
23 | * high -> active | |
24 | * low -> inactive | |
25 | * | |
26 | */ | |
27 | #define OMAP_GPIO_SWITCH_TYPE_COVER 0x0000 | |
28 | #define OMAP_GPIO_SWITCH_TYPE_CONNECTION 0x0001 | |
29 | #define OMAP_GPIO_SWITCH_TYPE_ACTIVITY 0x0002 | |
30 | #define OMAP_GPIO_SWITCH_FLAG_INVERTED 0x0001 | |
31 | #define OMAP_GPIO_SWITCH_FLAG_OUTPUT 0x0002 | |
32 | ||
33 | struct omap_gpio_switch { | |
34 | const char *name; | |
35 | s16 gpio; | |
36 | unsigned flags:4; | |
37 | unsigned type:4; | |
38 | ||
39 | /* Time in ms to debounce when transitioning from | |
40 | * inactive state to active state. */ | |
41 | u16 debounce_rising; | |
42 | /* Same for transition from active to inactive state. */ | |
43 | u16 debounce_falling; | |
44 | ||
45 | /* notify board-specific code about state changes */ | |
46 | void (* notify)(void *data, int state); | |
47 | void *notify_data; | |
48 | }; | |
49 | ||
50 | /* Call at init time only */ | |
51 | extern void omap_register_gpio_switches(const struct omap_gpio_switch *tbl, | |
52 | int count); | |
53 | ||
54 | #endif |