arch/avr32/mach-at32ap/include/mach/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 /* Some GPIO chips can manage IRQs; some can't.  The exact numbers can
   9  * be changed if needed, but for the moment they're not configurable.
  10  */
  11 #define ARCH_NR_GPIOS   (NR_GPIO_IRQS + 2 * 32)
  12
  13
  14 /* Arch-neutral GPIO API, supporting both "native" and external GPIOs. */
  15 #include <asm-generic/gpio.h>
  16
  17 static inline int gpio_get_value(unsigned int gpio)
  18 {
  19         return __gpio_get_value(gpio);
  20 }
  21
  22 static inline void gpio_set_value(unsigned int gpio, int value)
  23 {
  24         __gpio_set_value(gpio, value);
  25 }
  26
  27 static inline int gpio_cansleep(unsigned int gpio)
  28 {
  29         return __gpio_cansleep(gpio);
  30 }
  31
  32
  33 static inline int gpio_to_irq(unsigned int gpio)
  34 {
  35         if (gpio < NR_GPIO_IRQS)
  36                 return gpio + GPIO_IRQ_BASE;
  37         return -EINVAL;
  38 }
  39
  40 static inline int irq_to_gpio(unsigned int irq)
  41 {
  42         return irq - GPIO_IRQ_BASE;
  43 }
  44
  45 #endif /* __ASM_AVR32_ARCH_GPIO_H */