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