usart.h

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#ifndef _AVR32_USART_H_
#define _AVR32_USART_H_

#include <avr32/io.h>
#include <stdio.h>
#include "settings.h"

#define USART_OK 0

#define USART_FAILURE -1

#define USART_ERROR_ARGUMENT 1

#define USART_TX_BUSY  2

#define USART_RX_EMPTY 3

#define USART_RX_ERROR 4

#define USART_MODE_FAULT 5

#define USART_ADDR_RECEIVED 1

#define USART_DEFAULT_TIMEOUT  10000

#define USART_EVEN_PARITY   0

#define USART_ODD_PARITY    1

#define USART_SPACE_PARITY  2

#define USART_MARK_PARITY   3

#define USART_NO_PARITY     4

#define USART_MULTIDROP_PARITY  6

#define USART_MODE_NORMAL   0x00

#define USART_MODE_RS485    0x01

#define USART_MODE_HW_HSH   0x02

#define USART_MODE_MODEM    0x03

#define USART_MODE_ISO7816_T0   0x04

#define USART_MODE_ISO7816_T1   0x06

#define USART_MODE_IRDA     0x08

#define USART_MODE_SW_HSH   0x0C

#define USART_NORMAL_CHMODE 0

#define USART_AUTO_ECHO     1

#define USART_LOCAL_LOOPBACK    2

#define USART_REMOTE_LOOPBACK   3

#define USART_1_STOPBIT     0

#define USART_1_5_STOPBITS  1

#define USART_2_STOPBITS    2

struct usart_options_t
{
    unsigned long baudrate;

    unsigned char charlength;

    unsigned char paritytype;

    unsigned short stopbits;

    unsigned char channelmode;
};

void usart_reset( volatile avr32_usart_t * usart );

int usart_linit( volatile avr32_usart_t * usart,
        const struct usart_options_t * opt,
        const long cpuHz );

int usart_putchar( volatile avr32_usart_t * usart, const short character );

#ifdef _write_r
#undef _write_r
#endif
int _write_r(struct _reent *ptr, int fd, const void *buf, size_t cnt);

#endif

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