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/* $NetBSD: cons.c,v 1.3 1995/08/29 21:55:43 phil Exp $ */
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah Hdr: cons.c 1.7 92/02/28
*
* @(#)cons.c 8.1 (Berkeley) 6/10/93
*/
#include <sys/param.h>
#include <dev/cons.h>
#include "samachdep.h"
#ifdef SCNCONSOLE
int scnprobe(), scninit(), scngetchar(), scnputchar();
#endif
struct consdev constab[] = {
#ifdef SCNCONSOLE
{ scnprobe, scninit, scngetchar, scnputchar },
#endif
{ 0 },
};
struct consdev *cn_tab;
int noconsole;
cninit()
{
register struct consdev *cp;
cn_tab = NULL;
noconsole = 1;
for (cp = constab; cp->cn_probe; cp++) {
(*cp->cn_probe)(cp);
if (cp->cn_pri > CN_DEAD &&
(cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri))
cn_tab = cp;
}
if (cn_tab) {
(*cn_tab->cn_init)(cn_tab);
noconsole = 0;
}
}
cngetc()
{
if (cn_tab)
return((*cn_tab->cn_getc)(cn_tab->cn_dev));
return(0);
}
cnputc(c)
int c;
{
if (cn_tab)
(*cn_tab->cn_putc)(cn_tab->cn_dev, c);
}
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