301 lines
6.5 KiB
C
301 lines
6.5 KiB
C
/* $NetBSD: cons.c,v 1.2 2003/08/07 16:27:18 agc Exp $ */
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/*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah Hdr: cons.c 1.7 92/02/28
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*
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* @(#)cons.c 8.1 (Berkeley) 6/10/93
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*/
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/*
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* Copyright (c) 1988 University of Utah.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah Hdr: cons.c 1.7 92/02/28
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*
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* @(#)cons.c 8.1 (Berkeley) 6/10/93
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*/
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#include <lib/libsa/stand.h>
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#include "boot.h"
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#include "cons.h"
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#ifdef CONS_SERIAL
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void siocnprobe __P((struct consdev *));
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void siocninit __P((struct consdev *));
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void siocnputchar __P((void *, int));
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int siocngetchar __P((void *));
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int siocnscan __P((void *));
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# include "ns16550.h"
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# ifndef COMPORT
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# define COMPORT COM1
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# endif
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# ifndef COMSPEED
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# define COMSPEED 9600
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# endif
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#endif
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struct consdev constab[] = {
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#ifdef CONS_SERIAL
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{ "com", COMPORT, COMSPEED,
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siocnprobe, siocninit, siocngetchar, siocnputchar, siocnscan },
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#endif
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{ 0 }
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};
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struct consdev *cn_tab;
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char *
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cninit(addr, speed)
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int *addr;
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int *speed;
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{
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register struct consdev *cp;
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cn_tab = NULL;
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for (cp = constab; cp->cn_probe; cp++) {
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(*cp->cn_probe)(cp);
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if (cp->cn_pri > CN_DEAD &&
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(cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri))
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cn_tab = cp;
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}
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if (cn_tab) {
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(*cn_tab->cn_init)(cn_tab);
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*addr = cn_tab->address;
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*speed = cn_tab->speed;
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return (cn_tab->cn_name);
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}
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return (NULL);
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}
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int
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cngetc()
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{
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if (cn_tab)
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return ((*cn_tab->cn_getc)(cn_tab->cn_dev));
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return (0);
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}
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void
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cnputc(c)
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int c;
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{
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if (cn_tab)
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(*cn_tab->cn_putc)(cn_tab->cn_dev, c);
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}
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int
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cnscan()
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{
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if (cn_tab)
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return ((*cn_tab->cn_scan)(cn_tab->cn_dev));
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return (0);
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}
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#ifdef CONS_FB
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/*
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* frame buffer console
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*/
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void
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fbcnprobe(cp)
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struct consdev *cp;
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{
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cp->cn_pri = CN_INTERNAL;
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}
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void
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fbcninit(cp)
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struct consdev *cp;
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{
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video_init((u_char *)cp->address);
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kbdreset();
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}
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int
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fbcngetchar(dev)
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void *dev;
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{
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return (kbd_getc());
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}
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void
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fbcnputchar(dev, c)
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void *dev;
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register int c;
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{
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video_putc(c);
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}
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int
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fbcnscan(dev)
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void *dev;
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{
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return (kbd(1));
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}
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#endif /* CONS_FB */
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#ifdef CONS_VGA
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/*
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* VGA console
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*/
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void
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vgacnprobe(cp)
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struct consdev *cp;
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{
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cp->cn_pri = CN_NORMAL;
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}
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void
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vgacninit(cp)
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struct consdev *cp;
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{
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vga_reset((u_char *)cp->address);
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vga_init((u_char *)cp->address);
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kbdreset();
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}
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int
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vgacngetchar(dev)
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void *dev;
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{
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return (kbd_getc());
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}
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void
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vgacnputchar(dev, c)
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void *dev;
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register int c;
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{
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vga_putc(c);
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}
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int
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vgacnscan(dev)
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void *dev;
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{
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return (kbd(1));
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}
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#endif /* CONS_VGA */
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#ifdef CONS_SERIAL
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/*
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* serial console
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*/
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void
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siocnprobe(cp)
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struct consdev *cp;
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{
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if (*((unsigned long *)COMPROBE) != 0)
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cp->cn_pri = CN_REMOTE;
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}
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void
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siocninit(cp)
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struct consdev *cp;
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{
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cp->cn_dev = (void *)NS16550_init(cp->address, cp->speed);
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}
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int
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siocngetchar(dev)
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void *dev;
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{
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return (NS16550_getc((struct NS16550 *)dev));
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}
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void
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siocnputchar(dev, c)
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void *dev;
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register int c;
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{
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if (c == '\n')
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NS16550_putc((struct NS16550 *)dev, '\r');
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NS16550_putc((struct NS16550 *)dev, c);
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}
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int
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siocnscan(dev)
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void *dev;
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{
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return (NS16550_scankbd((struct NS16550 *)dev));
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}
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#endif /* CONS_SERIAL */
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