debugio.c

来自「RTEMS (Real-Time Executive for Multiproc」· C语言 代码 · 共 58 行

/*
 *  This file contains the TTY driver for the serial ports on the erc32.
 *
 *  This driver uses the termios pseudo driver.
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.com/license/LICENSE.
 *
 *  $Id: debugio.c,v 1.1.6.1 2003/09/04 18:43:53 joel Exp $
 */

#include <bsp.h>
#include <rtems/libio.h>
#include <stdlib.h>
#include <assert.h>

#include <simio.h>

/*
 *  console_outbyte_polled
 *
 *  This routine transmits a character using polling.
 */

void console_outbyte_polled(
  int  port,
  char ch
)
{
  char out[2];
  out[0] = ch;
  out[1] = 0;
  sim_write(1, out, 1);
}

C4X_BSP_output_char( int c )
{
  console_outbyte_polled( 0, (char) c );
}

/*
 *  console_inbyte_nonblocking 
 *
 *  This routine polls for a character.
 */

int console_inbyte_nonblocking( int port )
{
  char c;
  sim_read(1, &c, 1);
  return c;
}