/*
 * twi_master.h
 *
 * Created: 09-Jun-19 11:20:04 AM
 *  Author: TEP SOVICHEA
 */ 


#ifndef TWI_MASTER_H_
#define TWI_MASTER_H_
#include <avr/io.h>
#include <util/twi.h>
#include <stdbool.h>
#include "uart.h"

#define DEBUG_LOG			0
#define SUCCESS				0

#define TW_SCL_PIN			PORTC5
#define TW_SDA_PIN			PORTC4

#define TW_SLA_W(ADDR)		((ADDR << 1) | TW_WRITE)
#define TW_SLA_R(ADDR)		((ADDR << 1) | TW_READ)
#define TW_READ_ACK			1
#define TW_READ_NACK		0

typedef uint16_t ret_code_t;

typedef enum {
	TW_FREQ_100K,
	TW_FREQ_250K,
	TW_FREQ_400K
} twi_freq_mode_t;

void tw_init(twi_freq_mode_t twi_freq, bool pullup_en);
ret_code_t tw_master_transmit(uint8_t addr, uint8_t* p_data, uint8_t len);
ret_code_t tw_master_receive(uint8_t addr, uint8_t* p_data, uint8_t len);

#endif /* TWI_MASTER_H_ */