#pragma once

#include <stdint.h>
#include <stdio.h>

#include <hwo/fifo.h>

#define SERIAL_5BIT	0x0100
#define SERIAL_6BIT	0x0200
#define SERIAL_7BIT	0x0400
#define SERIAL_8BIT	0x0800

#define SERIAL_PAR_E	0x1000
#define SERIAL_PAR_O	0x2000

#define SERIAL_STOP2	0x4000

struct avr_serial;
typedef struct avr_serial avrSerial;

typedef void (*serial_cb_rx)(void *arg,uint8_t ch);

/**
 * @class avr_serial
 * @author Harald Wolff
 * @date 
 * @file serial.h
 * @brief Structure for serial device
 */
struct avr_serial
{
	avrSerial* next;
	
	uint8_t (*init)(avrSerial* serial,uint32_t baudrate,uint32_t config);	// Setup Port
	void	(*notify)(avrSerial* serial);					// Notify of new byte to send in fifo_tx
	void	(*flush)(avrSerial *serial);									// Warten bis alle Zeichen gesendet wurden
/*
	void (*tx)(avrSerial* serial,uint8_t byte);
	uint16_t (*rx)(avrSerial* serial);	
*/
	FIFO* fifo_tx;
	FIFO* fifo_rx;
	
	void*	driver;
};

extern avrSerial* _serial_head;

void serial_register(avrSerial* serial);
void usart_register(void);

uint8_t serial_init(avrSerial* serial,uint32_t baudrate,uint32_t config);

void serial_tx_byte(avrSerial* serial,uint8_t byte);
void serial_tx_string(avrSerial* serial,char* string);
void serial_tx(avrSerial* serial,uint8_t* data,uint8_t len);

void serial_flush(avrSerial *serial);

uint16_t serial_rx_byte(avrSerial* serial);
uint16_t serial_rx_line(avrSerial* serial,char* buffer,uint8_t maxlen);
uint16_t serial_rx(avrSerial* serial,uint8_t* buffer,uint8_t len);

uint16_t serial_poll_byte(avrSerial* serial);

uint16_t serial_rxready(avrSerial* serial);

avrSerial*	serial_get(uint8_t no);
avrSerial*	serial_null(void);

FILE*	serial_build_stream(avrSerial* serial);

void	serial_set_blocking(avrSerial *serial,uint8_t blocking);
void	serial_set_timeout(avrSerial *serial,uint16_t timeout);