twr_i2c.h

#ifndef _TWR_I2C_H
#define _TWR_I2C_H

#include <twr_common.h>


#define TWR_I2C_MEMORY_ADDRESS_16_BIT 0x80000000


typedef enum
{
    TWR_I2C_I2C0 = 0,

    TWR_I2C_I2C1 = 1,

    TWR_I2C_I2C_1W = 2

} twr_i2c_channel_t;


typedef enum
{
    TWR_I2C_SPEED_100_KHZ = 0,

    TWR_I2C_SPEED_400_KHZ = 1

} twr_i2c_speed_t;


typedef struct
{
    uint8_t device_address;

    void *buffer;

    size_t length;

} twr_i2c_transfer_t;


typedef struct
{
    uint8_t device_address;

    uint32_t memory_address;

    void *buffer;

    size_t length;

} twr_i2c_memory_transfer_t;


void twr_i2c_init(twr_i2c_channel_t channel, twr_i2c_speed_t speed);


void twr_i2c_deinit(twr_i2c_channel_t channel);


twr_i2c_speed_t twr_i2c_get_speed(twr_i2c_channel_t channel);


void twr_i2c_set_speed(twr_i2c_channel_t channel, twr_i2c_speed_t speed);


bool twr_i2c_write(twr_i2c_channel_t channel, const twr_i2c_transfer_t *transfer);


bool twr_i2c_read(twr_i2c_channel_t channel, const twr_i2c_transfer_t *transfer);


bool twr_i2c_memory_write(twr_i2c_channel_t channel, const twr_i2c_memory_transfer_t *transfer);


bool twr_i2c_memory_read(twr_i2c_channel_t channel, const twr_i2c_memory_transfer_t *transfer);


bool twr_i2c_memory_write_8b(twr_i2c_channel_t channel, uint8_t device_address, uint32_t memory_address, uint8_t data);


bool twr_i2c_memory_write_16b(twr_i2c_channel_t channel, uint8_t device_address, uint32_t memory_address, uint16_t data);


bool twr_i2c_memory_read_8b(twr_i2c_channel_t channel, uint8_t device_address, uint32_t memory_address, uint8_t *data);


bool twr_i2c_memory_read_16b(twr_i2c_channel_t channel, uint8_t device_address, uint32_t memory_address, uint16_t *data);


#endif // _TWR_I2C_H