/**
 * @file include/di_fw/i2c.h
 * @brief I2C header file
 * @date August 26, 2015
 * @author A.A.W.M. Ruijs
 * @copyright 2015 Dual Inventive Technology Centre B.V.
 */
#ifndef INCLUDE_DI_FW_I2C_DI_H_
#define INCLUDE_DI_FW_I2C_DI_H_

#include <stdint.h>

#include <di_fw/os.h>

/**
 * initiation of I2C
 */
void di_fw_i2c_init(I2CDriver *i2cp);

/**
 * read data over I2C bus
 * @param i2cp		pointer to I2C driver
 * @param address	address of the device
 * @param readdata	pointer to the place where the data need to be written
 * @param read_len	len of th readdata buffer
 */
msg_t di_fw_i2c_read(I2CDriver *i2cp, const uint16_t address, uint8_t *readdata, size_t read_len);

/**
 * write data over I2C bus
 * @param i2cp		pointer to I2C driver
 * @param address	address of the device
 * @param writedata	pointer to the data that need to be written
 * @param write_len	length of writedata
 */
msg_t di_fw_i2c_write(I2CDriver *i2cp, const uint16_t address, uint8_t *writedata, size_t write_len);

/**
 * write data over I2C bus and read data back
 * @param i2cp		pointer to I2C driver
 * @param address	address of the device
 * @param writedata	pointer to the data that need to be written
 * @param write_len	length of writedata
 * @param readdata	pointer to the place where the data need to be written
 * @param read_len	len of th readdata buffer
 */
msg_t di_fw_i2c_transfer(I2CDriver *i2cp, const uint16_t address, uint8_t *writedata, size_t write_len,
			 uint8_t *readdata, size_t read_len);

#endif /* INCLUDE_DI_FW_I2C_DI_H_ */