twr_sc16is740.h

#ifndef _TWR_SC16IS740_H
#define _TWR_SC16IS740_H
 
#include <twr_i2c.h>
#include <twr_tick.h>
 
 
 
typedef enum
{
    TWR_SC16IS740_FIFO_RX = 0x02,
    TWR_SC16IS740_FIFO_TX = 0x04
 
} twr_sc16is740_fifo_t;
 
 
typedef enum
{
    TWR_SC16IS740_BAUDRATE_9600 = 88,
    TWR_SC16IS740_BAUDRATE_19200 = 44,
    TWR_SC16IS740_BAUDRATE_38400 = 22,
    TWR_SC16IS740_BAUDRATE_57600 = 15,
    TWR_SC16IS740_BAUDRATE_115200 = 7
 
} twr_sc16is740_baudrate_t;
 
 
 
typedef struct
{
    twr_i2c_channel_t _i2c_channel;
    uint8_t _i2c_address;
 
} twr_sc16is740_t;
 
 
 
bool twr_sc16is740_init(twr_sc16is740_t *self, twr_i2c_channel_t i2c_channel, uint8_t i2c_address);
 
 
bool twr_sc16is740_reset_fifo(twr_sc16is740_t *self, twr_sc16is740_fifo_t fifo);
 
 
bool twr_sc16is740_get_spaces_available(twr_sc16is740_t *self, size_t *spaces_available);
 
 
size_t twr_sc16is740_write(twr_sc16is740_t *self, uint8_t *buffer, size_t length);
 
 
bool twr_sc16is740_available(twr_sc16is740_t *self, size_t *available);
 
 
size_t twr_sc16is740_read(twr_sc16is740_t *self, uint8_t *buffer, size_t length, twr_tick_t timeout);
 
 
bool twr_sc16is740_set_baudrate(twr_sc16is740_t *self, twr_sc16is740_baudrate_t baudrate);
 
 
#endif // _TWR_SC16IS740_H