release/src-rt-6.x/linux/linux-2.6/include/asm-avr32/arch-at32ap/gpio.h

   1 #ifndef __ASM_AVR32_ARCH_GPIO_H
   2 #define __ASM_AVR32_ARCH_GPIO_H
   3
   4 #include <linux/compiler.h>
   5 #include <asm/irq.h>
   6
   7
   8 /* Arch-neutral GPIO API */
   9 int __must_check gpio_request(unsigned int gpio, const char *label);
  10 void gpio_free(unsigned int gpio);
  11
  12 int gpio_direction_input(unsigned int gpio);
  13 int gpio_direction_output(unsigned int gpio, int value);
  14 int gpio_get_value(unsigned int gpio);
  15 void gpio_set_value(unsigned int gpio, int value);
  16
  17 #include <asm-generic/gpio.h>           /* cansleep wrappers */
  18
  19 static inline int gpio_to_irq(unsigned int gpio)
  20 {
  21         return gpio + GPIO_IRQ_BASE;
  22 }
  23
  24 static inline int irq_to_gpio(unsigned int irq)
  25 {
  26         return irq - GPIO_IRQ_BASE;
  27 }
  28
  29 #endif /* __ASM_AVR32_ARCH_GPIO_H */