48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
|
|
* include/asm-arm/arch-ns9xxx/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 */
|