arch/alpha/include/asm/gpio.h

   1 /*
   2  * Generic GPIO API implementation for Alpha.
   3  *
   4  * A stright copy of that for PowerPC which was:
   5  *
   6  * Copyright (c) 2007-2008  MontaVista Software, Inc.
   7  *
   8  * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  */
  15
  16 #ifndef _ASM_ALPHA_GPIO_H
  17 #define _ASM_ALPHA_GPIO_H
  18
  19 #include <linux/errno.h>
  20 #include <asm-generic/gpio.h>
  21
  22 #ifdef CONFIG_GPIOLIB
  23
  24 /*
  25  * We don't (yet) implement inlined/rapid versions for on-chip gpios.
  26  * Just call gpiolib.
  27  */
  28 static inline int gpio_get_value(unsigned int gpio)
  29 {
  30         return __gpio_get_value(gpio);
  31 }
  32
  33 static inline void gpio_set_value(unsigned int gpio, int value)
  34 {
  35         __gpio_set_value(gpio, value);
  36 }
  37
  38 static inline int gpio_cansleep(unsigned int gpio)
  39 {
  40         return __gpio_cansleep(gpio);
  41 }
  42
  43 static inline int gpio_to_irq(unsigned int gpio)
  44 {
  45         return __gpio_to_irq(gpio);
  46 }
  47
  48 static inline int irq_to_gpio(unsigned int irq)
  49 {
  50         return -EINVAL;
  51 }
  52
  53 #endif /* CONFIG_GPIOLIB */
  54
  55 #endif /* _ASM_ALPHA_GPIO_H */