/*
Serial header file
License : GPL
(c) Adam Majerczyk

*/
#ifndef ___SERIAL_H
#define ___SERIAL_H


#include "global.h"

// for a fcpu of 11.0592, or 14,7456Mhz
// all this modes works with 0 percent
// of error-rating
// for all other fcpu ( 8Mhz,16Mhz ...)
// all modes excepting the 230,4 have
// a little errorrating.
#define UART_BAUD_RATE_2400      2400
#define UART_BAUD_RATE_4800      4800
#define UART_BAUD_RATE_9600      9600
#define UART_BAUD_RATE_14400     14400
#define UART_BAUD_RATE_19200     19200
#define UART_BAUD_RATE_28800     28800
#define UART_BAUD_RATE_38400     38400
#define UART_BAUD_RATE_57600     57600
#define UART_BAUD_RATE_76800     76800
#define UART_BAUD_RATE_115200    115200
#define UART_BAUD_RATE_230400    230400

//values for UBRR when fosc=14,7456Mhz,
//and U2X = 0
//  baud value
//  2400 383
//  4800 191
//  9600  95
// 14400  63
// 19200  47
// 28800  31
// 38400  23
// 57600  15
// 76800  11
//115200   7
//230400   3

//this do it automatically
#define UART_BAUD_SELECT_2400    (F_CPU/(UART_BAUD_RATE_2400*16L)-1)
#define UART_BAUD_SELECT_4800    (F_CPU/(UART_BAUD_RATE_4800*16L)-1)
#define UART_BAUD_SELECT_9600    (F_CPU/(UART_BAUD_RATE_9600*16L)-1)
#define UART_BAUD_SELECT_14400   (F_CPU/(UART_BAUD_RATE_14400*16L)-1)
#define UART_BAUD_SELECT_19200   (F_CPU/(UART_BAUD_RATE_19200*16L)-1)
#define UART_BAUD_SELECT_28800   (F_CPU/(UART_BAUD_RATE_28800*16L)-1)
#define UART_BAUD_SELECT_38400   (F_CPU/(UART_BAUD_RATE_38400*16L)-1)
#define UART_BAUD_SELECT_57600   (F_CPU/(UART_BAUD_RATE_57600*16L)-1)
#define UART_BAUD_SELECT_76800   (F_CPU/(UART_BAUD_RATE_76800*16L)-1)
#define UART_BAUD_SELECT_115200  (F_CPU/(UART_BAUD_RATE_115200*16L)-1)
#define UART_BAUD_SELECT_230400  (F_CPU/(UART_BAUD_RATE_230400*16L)-1)


extern void ser_init(void);
extern void ser_putc(unsigned char c);
extern void ser_puts(unsigned char *s);
extern int ser_gets(unsigned char *s, unsigned char len);
extern unsigned char ser_getc(void);
extern volatile unsigned char rcnt, rpos;
extern volatile unsigned char busy;


#endif