/arch/arm/mach-ns9xxx/include/mach/gpio.h
C++ Header | 47 lines | 20 code | 12 blank | 15 comment | 0 complexity | a08c376e636133c00a3b6ff09970426c MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
1/*
2 * arch/arm/mach-ns9xxx/include/mach/gpio.h
3 *
4 * Copyright (C) 2007 by Digi International Inc.
5 * All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
10*/
11#ifndef __ASM_ARCH_GPIO_H
12#define __ASM_ARCH_GPIO_H
13
14#include <asm/errno.h>
15
16int gpio_request(unsigned gpio, const char *label);
17
18void gpio_free(unsigned gpio);
19
20int ns9xxx_gpio_configure(unsigned gpio, int inv, int func);
21
22int gpio_direction_input(unsigned gpio);
23
24int gpio_direction_output(unsigned gpio, int value);
25
26int gpio_get_value(unsigned gpio);
27
28void gpio_set_value(unsigned gpio, int value);
29
30/*
31 * ns9xxx can use gpio pins to trigger an irq, but it's not generic
32 * enough to be supported by the gpio_to_irq/irq_to_gpio interface
33 */
34static inline int gpio_to_irq(unsigned gpio)
35{
36 return -EINVAL;
37}
38
39static inline int irq_to_gpio(unsigned irq)
40{
41 return -EINVAL;
42}
43
44/* get the cansleep() stubs */
45#include <asm-generic/gpio.h>
46
47#endif /* ifndef __ASM_ARCH_GPIO_H */