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/*
* Copyright (c) 1997-1999 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit 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 GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* Example program to test the function of device drivers
* that implement the oskit_ttydev interface.
* Specifically the FreeBSD syscons device.
*
* It prints out some stuff to the system console and then echos
* characters back until it sees 'X'.
*/
#include <stdio.h>
#include <malloc.h>
#include <oskit/io/ttystream.h>
#include <oskit/fs/file.h> /* XXX OSKIT_O_RDWR */
#include <oskit/dev/dev.h>
#include <oskit/dev/tty.h>
#include <oskit/dev/freebsd.h>
#include <oskit/debug.h>
#include <oskit/clientos.h>
#include <oskit/startup.h>
#include <oskit/dev/osenv.h>
static char msg[] =
"Hello there!\r\n"
"This is the Flux OS Toolkit's TTY test program.\r\n"
"Press X to exit.\r\n";
int
main(int argc, char **argv)
{
oskit_ttydev_t **ttydev;
int ndev;
oskit_ttystream_t *ttystrm;
oskit_u32_t actual;
int rc;
oskit_osenv_t *osenv;
oskit_clientos_init();
osenv = start_osenv();
printf("Initializing device drivers...\n");
oskit_dev_init(osenv);
oskit_freebsd_init_osenv(osenv);
oskit_freebsd_init_sc();
oskit_dump_drivers();
printf("Probing devices...\n");
oskit_dev_probe();
oskit_dump_devices();
/*
* Find all TTY device nodes.
*/
ndev = osenv_device_lookup(&oskit_ttydev_iid, (void***)&ttydev);
if (ndev <= 0)
panic("no TTY devices found!");
/*
* Open the first TTY device found, which should be the display.
* because that is the only one I initialized.
*/
rc = oskit_ttydev_open(ttydev[0], OSKIT_O_RDWR, &ttystrm);
if (rc)
panic("unable to open tty0: %d", rc);
/*
* Display a welcome message.
*/
rc = oskit_ttystream_write(ttystrm, msg, strlen(msg), &actual);
if (rc)
panic("error writing to tty device: %d", rc);
/* Read and echo characters until we see an 'X' or EOF. */
while (1) {
char c;
rc = oskit_ttystream_read(ttystrm, &c, 1, &actual);
if (rc)
panic("error reading from tty device: %d", rc);
if (actual == 0)
break;
if (c == 'X')
break;
rc = oskit_ttystream_write(ttystrm, &c, 1, &actual);
if (rc)
panic("error writing to tty device: %d", rc);
}
return 0;
}
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