target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h

   1 /*
   2  *  Atheros AR71xx GPIO API definitions
   3  *
   4  *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
   5  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
   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
   9  *  by the Free Software Foundation.
  10  *
  11  */
  12
  13 #ifndef __ASM_MACH_AR71XX_GPIO_H
  14 #define __ASM_MACH_AR71XX_GPIO_H
  15
  16 #define ARCH_NR_GPIOS   64
  17 #include <asm-generic/gpio.h>
  18
  19 #include <asm/mach-ar71xx/ar71xx.h>
  20
  21 extern void __ar71xx_gpio_set_value(unsigned gpio, int value);
  22 extern int __ar71xx_gpio_get_value(unsigned gpio);
  23
  24 static inline int gpio_to_irq(unsigned gpio)
  25 {
  26         return AR71XX_GPIO_IRQ(gpio);
  27 }
  28
  29 static inline int irq_to_gpio(unsigned irq)
  30 {
  31         return irq - AR71XX_GPIO_IRQ_BASE;
  32 }
  33
  34 static inline int gpio_get_value(unsigned gpio)
  35 {
  36         if (gpio < AR71XX_GPIO_COUNT)
  37                 return __ar71xx_gpio_get_value(gpio);
  38
  39         return __gpio_get_value(gpio);
  40 }
  41
  42 static inline void gpio_set_value(unsigned gpio, int value)
  43 {
  44         if (gpio < AR71XX_GPIO_COUNT)
  45                 __ar71xx_gpio_set_value(gpio, value);
  46         else
  47                 __gpio_set_value(gpio, value);
  48 }
  49
  50 #define gpio_cansleep   __gpio_cansleep
  51
  52 #endif /* __ASM_MACH_AR71XX_GPIO_H */