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