113 lines
3.2 KiB
C
113 lines
3.2 KiB
C
/* $NetBSD: cons.c,v 1.6 1994/10/26 07:27:09 cgd 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 ITECONSOLE
|
|
int iteprobe(), iteinit(), itegetchar(), iteputchar();
|
|
#endif
|
|
#ifdef DCACONSOLE
|
|
int dcaprobe(), dcainit(), dcagetchar(), dcaputchar();
|
|
#endif
|
|
#ifdef DCMCONSOLE
|
|
int dcmprobe(), dcminit(), dcmgetchar(), dcmputchar();
|
|
#endif
|
|
|
|
struct consdev constab[] = {
|
|
#ifdef ITECONSOLE
|
|
{ iteprobe, iteinit, itegetchar, iteputchar },
|
|
#endif
|
|
#ifdef DCACONSOLE
|
|
{ dcaprobe, dcainit, dcagetchar, dcaputchar },
|
|
#endif
|
|
#ifdef DCMCONSOLE
|
|
{ dcmprobe, dcminit, dcmgetchar, dcmputchar },
|
|
#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)());
|
|
return(0);
|
|
}
|
|
|
|
cnputc(c)
|
|
int c;
|
|
{
|
|
#ifdef ROMPRF
|
|
extern int userom;
|
|
|
|
if (userom)
|
|
romputchar(c);
|
|
else
|
|
#endif
|
|
if (cn_tab)
|
|
(*cn_tab->cn_putc)(c);
|
|
}
|