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/*
* This file contains the hardware specific portions of the TTY driver
* for the simulators stdin/out.
*
* Logic based on newlib-1.8.2/newlib/libc/sys/sh/syscalls.c
*
* COPYRIGHT (c) 1989-2000.
* 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.
*
* $Id$
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <stdlib.h>
#include <assert.h>
#define SYS_exit 1
#define SYS_read 3
#define SYS_write 4
int errno ;
extern int __trap34(int, int, void*, int );
/*
* console_initialize_hardware
*
* This routine initializes the console hardware.
*
*/
void console_initialize_hardware(void)
{
return;
}
/*
* console_outbyte_polled
*
* This routine transmits a character using polling.
*/
void console_outbyte_polled(
int port,
char ch
)
{
__trap34 (SYS_write, 1, &ch, 1);
return;
}
/*
* console_inbyte_nonblocking
*
* This routine polls for a character.
*/
int console_inbyte_nonblocking(
int port
)
{
unsigned char c;
return __trap34 (SYS_read, 0, &c, 1);
}
/* XXX wrong place for this */
_sys_exit (n)
{
return __trap34 (SYS_exit, n, 0, 0);
}
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