#ifndef _I2C_SLAVE_H
#define _I2C_SLAVE_H

#include <hardware/i2c.h>

/**
 * @brief I2c master struct.
 *
 * @param i2c_inst      Instance i2c master initialized on
 */
typedef struct i2c_master {
    i2c_inst_t *i2c_inst;
} i2c_master_t;

/**
 * @brief I2c slave struct.
 *
 * @param i2c_inst      Instance i2c slave initialized on
 * @param reg           Currently pointed register
 * @param reg_written   Communication option
 * @param buffer        Memory buffer for communication
 */
typedef struct i2c_slave {
    i2c_inst_t *i2c_inst;
    uint8_t reg;
    bool reg_written;
    uint8_t buffer[256];
} i2c_slave_t;

/**
 * @brief Init an i2c instance as master.
 *
 * @param i2c_master    Pointer to a i2c master struct
 * @param i2c_inst      Instance to initialise master on
 */
void init_i2c_master(i2c_master_t *i2c_master, i2c_inst_t *i2c_inst);

/**
 * @brief Reset an i2c master to default settings.
 *
 * @param i2c_master    Pointer to the i2c master struct to exit
 */
void exit_i2c_master(i2c_master_t *i2c_master);

/**
 * @brief Init an i2c instance as slave.
 *
 * @param i2c_slave     Pointer to an i2c slave struct
 * @param i2c_inst      Instance to initialise slave on
 * @param address       The address of the slave
 */
void init_i2c_slave(i2c_slave_t *i2c_slave, i2c_inst_t *i2c_inst, uint8_t address);

/**
 * @brief Reset an i2c slave to default settings.
 *
 * @param i2c_slave    Pointer to the i2c slave struct to exit
 */
void exit_i2c_slave(i2c_slave_t *i2c_slave);

#endif // _I2C_SLAVE_H