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/*
* arch/arm/mach-ns9xxx/include/mach/gpio.h
*
* Copyright (C) 2007 by Digi International Inc.
* All rights reserved.
*
* 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_GPIO_H
#define __ASM_ARCH_GPIO_H
#include <asm/errno.h>
int gpio_request(unsigned gpio, const char *label);
void gpio_free(unsigned gpio);
int ns9xxx_gpio_configure(unsigned gpio, int inv, int func);
int gpio_direction_input(unsigned gpio);
int gpio_direction_output(unsigned gpio, int value);
int gpio_get_value(unsigned gpio);
void gpio_set_value(unsigned gpio, int value);
/*
* ns9xxx can use gpio pins to trigger an irq, but it's not generic
* enough to be supported by the gpio_to_irq/irq_to_gpio interface
*/
static inline int gpio_to_irq(unsigned gpio)
{
return -EINVAL;
}
static inline int irq_to_gpio(unsigned irq)
{
return -EINVAL;
}
/* get the cansleep() stubs */
#include <asm-generic/gpio.h>
#endif /* ifndef __ASM_ARCH_GPIO_H */
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