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/*
* This file contains the hardware specific portions of the TTY driver
* for the serial ports on the erc32.
*
* COPYRIGHT (c) 1989-1997.
* 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>
#include <simio.h>
/*
* console_outbyte_polled
*
* This routine transmits a character using polling.
*/
void console_outbyte_polled(
int port,
char ch
);
/*
* console_inbyte_nonblocking
*
* This routine polls for a character.
*/
int console_inbyte_nonblocking(
int port
);
/*
* Console Termios Support Entry Points
*
*/
int console_write_support (
int minor,
const char *bufarg,
int len
)
{
int nwrite = 0;
const char *buf = bufarg;
while (nwrite < len) {
if ( *buf )
console_outbyte_polled( minor, *buf & 0x7f );
buf++;
nwrite++;
}
return nwrite;
}
/*
* Console Device Driver Entry Points
*
*/
rtems_device_driver console_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
rtems_status_code status;
rtems_termios_initialize();
/*
* Register Device Names
*/
status = rtems_io_register_name( "/dev/console", major, 0 );
if (status != RTEMS_SUCCESSFUL)
rtems_fatal_error_occurred(status);
return RTEMS_SUCCESSFUL;
}
rtems_device_driver console_open(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
rtems_status_code sc;
static const rtems_termios_callbacks pollCallbacks = {
NULL, /* firstOpen */
NULL, /* lastClose */
console_inbyte_nonblocking, /* pollRead */
console_write_support, /* write */
NULL, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
0 /* outputUsesInterrupts */
};
assert( minor <= 1 );
if ( minor > 2 )
return RTEMS_INVALID_NUMBER;
sc = rtems_termios_open (major, minor, arg, &pollCallbacks );
return RTEMS_SUCCESSFUL;
}
rtems_device_driver console_close(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_close (arg);
}
rtems_device_driver console_read(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_read (arg);
}
rtems_device_driver console_write(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_write (arg);
}
rtems_device_driver console_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_ioctl (arg);
}
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