pifacedigital.h

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#ifndef _PIFACEDIGITAL_H
#define _PIFACEDIGITAL_H

#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif


#define OUTPUT 0x12 // GPIOA
#define INPUT 0x13 // GPIOB


int pifacedigital_open(uint8_t hw_addr);

int pifacedigital_open_noinit(uint8_t hw_addr);

void pifacedigital_close(uint8_t hw_addr);

uint8_t pifacedigital_read_reg(uint8_t reg, uint8_t hw_addr);

void pifacedigital_write_reg(uint8_t data, uint8_t reg, uint8_t hw_addr);

uint8_t pifacedigital_read_bit(uint8_t bit_num, uint8_t reg, uint8_t hw_addr);

void pifacedigital_write_bit(uint8_t data,
                             uint8_t bit_num,
                             uint8_t reg,
                             uint8_t hw_addr);

uint8_t pifacedigital_digital_read(uint8_t pin_num);

void pifacedigital_digital_write(uint8_t pin_num, uint8_t value);

int pifacedigital_enable_interrupts(void);

int pifacedigital_disable_interrupts(void);

int pifacedigital_wait_for_input(uint8_t *data,
                                 int timeout,
                                 uint8_t hw_addr);


#ifdef __cplusplus
}
#endif

#endif