include/asm-x86/gpio.h

   1 /*
   2  * Generic GPIO API implementation for x86.
   3  *
   4  * Derived from the generic GPIO API for powerpc:
   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_I386_GPIO_H
  17 #define _ASM_I386_GPIO_H
  18
  19 #ifdef CONFIG_X86_RDC321X
  20 #include <gpio.h>
  21 #else /* CONFIG_X86_RDC321X */
  22
  23 #include <asm-generic/gpio.h>
  24
  25 #ifdef CONFIG_GPIOLIB
  26
  27 /*
  28  * Just call gpiolib.
  29  */
  30 static inline int gpio_get_value(unsigned int gpio)
  31 {
  32         return __gpio_get_value(gpio);
  33 }
  34
  35 static inline void gpio_set_value(unsigned int gpio, int value)
  36 {
  37         __gpio_set_value(gpio, value);
  38 }
  39
  40 static inline int gpio_cansleep(unsigned int gpio)
  41 {
  42         return __gpio_cansleep(gpio);
  43 }
  44
  45 /*
  46  * Not implemented, yet.
  47  */
  48 static inline int gpio_to_irq(unsigned int gpio)
  49 {
  50         return -ENOSYS;
  51 }
  52
  53 static inline int irq_to_gpio(unsigned int irq)
  54 {
  55         return -EINVAL;
  56 }
  57
  58 #endif /* CONFIG_GPIOLIB */
  59
  60 #endif /* CONFIG_X86_RDC321X */
  61
  62 #endif /* _ASM_I386_GPIO_H */