aversive_10-03-12/modules/comm/uart/uart.h

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/*  
 *  Copyright Droids Corporation, Microb Technology, Eirbot (2005)
 * 
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Revision : $Id: uart.h,v 1.25 2009-03-15 21:51:17 zer0 Exp $
 *
 */

/* Olivier MATZ, 2004 - 2006
 * Interface of the uart module
 */

#ifndef _UART_H_
#define _UART_H_

#include <stdio.h>
#include <aversive.h>
#include <uart_config.h>

#include <cirbuf.h>

struct uart_config {
      uint8_t enabled          : 1, 
      intr_enabled     : 1, 
      use_double_speed : 1, 
      parity           : 2, 
      stop_bits        : 1, 
      reserved         : 1; 
      uint8_t nbits;                
      uint32_t baudrate;             
};


void uart_init(void);

int8_t uart_setconf(uint8_t num, struct uart_config *u);

void uart_getconf(uint8_t num, struct uart_config *u);

int uart_recv(uint8_t num);

int uart_recv_nowait(uint8_t num);

int uart_9bits_recv(uint8_t num);

int uart_9bits_recv_nowait(uint8_t num);

int uart_send_nowait(uint8_t num, char c);

int uart_send(uint8_t num, char c);

int uart_send_9bits_nowait(uint8_t num, int c);

/* uart_send_9bits_wait is the same that uart_send_wait but arg is
 * 16 bits so data can be 9 bits wide.
 */
int uart_send_9bits(uint8_t num, int c);



void uart_register_tx_event(uint8_t num, void (*f)(char));

void uart_register_rx_event(uint8_t num, void (*f)(char));


void uart_register_tx_9bits_event(uint8_t num, void (*f)(int));

void uart_register_rx_9bits_event(uint8_t num, void (*f)(int));

/* funcs for use with fdevopen (avrlibc > 1.4.0) */
int uart0_dev_send_nowait(char c, FILE* f);
int uart0_dev_send(char c, FILE* f);
int uart0_dev_recv_nowait(FILE* f);
int uart0_dev_recv(FILE* f);

int uart1_dev_send_nowait(char c, FILE* f);
int uart1_dev_send(char c, FILE* f);
int uart1_dev_recv_nowait(FILE* f);
int uart1_dev_recv(FILE* f);

int uart2_dev_send_nowait(char c, FILE* f);
int uart2_dev_send(char c, FILE* f);
int uart2_dev_recv_nowait(FILE* f);
int uart2_dev_recv(FILE* f);

int uart3_dev_send_nowait(char c, FILE* f);
int uart3_dev_send(char c, FILE* f);
int uart3_dev_recv_nowait(FILE* f);
int uart3_dev_recv(FILE* f);


#endif /* _UART_H_ */

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