/*
* GPIO switch definitions
*
* Copyright (C) 2006 Nokia Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_OMAP_GPIO_SWITCH_H
#define __ASM_ARCH_OMAP_GPIO_SWITCH_H
#include <linux/types.h>
/* Cover:
* high -> closed
* low -> open
* Connection:
* high -> connected
* low -> disconnected
* Activity:
* high -> active
* low -> inactive
*
*/
#define OMAP_GPIO_SWITCH_TYPE_COVER 0x0000
#define OMAP_GPIO_SWITCH_TYPE_CONNECTION 0x0001
#define OMAP_GPIO_SWITCH_TYPE_ACTIVITY 0x0002
#define OMAP_GPIO_SWITCH_FLAG_INVERTED 0x0001
#define OMAP_GPIO_SWITCH_FLAG_OUTPUT 0x0002
struct omap_gpio_switch {
const char *name;
s16 gpio;
unsigned flags:4;
unsigned type:4;
/* Time in ms to debounce when transitioning from
* inactive state to active state. */
u16 debounce_rising;
/* Same for transition from active to inactive state. */
u16 debounce_falling;
/* notify board-specific code about state changes */
void (* notify)(void *data, int state);
void *notify_data;
};
/* Call at init time only */
extern void omap_register_gpio_switches(const struct omap_gpio_switch *tbl,
int count);
#endif