|
|
|
|
/*
|
|
|
|
|
* Generic GPIO API implementation for xtensa.
|
|
|
|
|
*
|
|
|
|
|
* Stolen from x86, which is derived from the generic GPIO API for powerpc:
|
|
|
|
|
*
|
|
|
|
|
* Copyright (c) 2007-2008 MontaVista Software, Inc.
|
|
|
|
|
*
|
|
|
|
|
* Author: Anton Vorontsov <avorontsov@ru.mvista.com>
|
|
|
|
|
*
|
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
|
* it under the terms of the GNU General Public License as published by
|
|
|
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
* (at your option) any later version.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef _ASM_XTENSA_GPIO_H
|
|
|
|
|
#define _ASM_XTENSA_GPIO_H
|
|
|
|
|
|
|
|
|
|
#include <asm-generic/gpio.h>
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_GPIOLIB
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Just call gpiolib.
|
|
|
|
|
*/
|
|
|
|
|
static inline int gpio_get_value(unsigned int gpio)
|
|
|
|
|
{
|
|
|
|
|
return __gpio_get_value(gpio);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void gpio_set_value(unsigned int gpio, int value)
|
|
|
|
|
{
|
|
|
|
|
__gpio_set_value(gpio, value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int gpio_cansleep(unsigned int gpio)
|
|
|
|
|
{
|
|
|
|
|
return __gpio_cansleep(gpio);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int gpio_to_irq(unsigned int gpio)
|
|
|
|
|
{
|
|
|
|
|
return __gpio_to_irq(gpio);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Not implemented, yet.
|
|
|
|
|
*/
|
|
|
|
|
static inline int irq_to_gpio(unsigned int irq)
|
|
|
|
|
{
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* CONFIG_GPIOLIB */
|
|
|
|
|
|
|
|
|
|
#endif /* _ASM_XTENSA_GPIO_H */
|
