gpio.h

/* ************************************************************************** */
/** GPIO

  @Company
    ShimaneJohoshoriCenter.inc

  @File Name
    gpio.h

  @Summary
    GPIO class processing

  @Description
    mruby/c function army
 */
/* ************************************************************************** */

#ifndef RBOARD_GPIO_H
#define RBOARD_GPIO_H

/* Provide C++ Compatibility */
#ifdef __cplusplus
extern "C" {
#endif


/*!
  physical pin describer.
*/
typedef struct PIN_HANDLE {
  uint8_t port;		// A=1,B=2,..,G=7
  uint8_t num;		// 0..15
} PIN_HANDLE;

#define GPIO_IN			0x01
#define GPIO_OUT		0x02
#define GPIO_ANALOG		0x04
#define GPIO_HIGH_Z		0x08
#define GPIO_PULL_UP		0x10
#define GPIO_PULL_DOWN		0x20
#define GPIO_OPEN_DRAIN		0x40

struct RObject;
int set_pin_handle( PIN_HANDLE *pin_handle, const struct RObject *val );
int gpio_setmode( const PIN_HANDLE *pin, unsigned int mode );
void mrbc_init_class_gpio( void );


/* Provide C++ Compatibility */
#ifdef __cplusplus
}
#endif
#endif /* RBOARD_GPIO_H */