Fully synchronize sys/boot from FreeBSD-5.x, but add / to the module path
[dragonfly.git] / sys / boot / pc98 / boot2 / probe_keyboard.c
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1/*
2 * Copyright (c) KATO Takenori, 1994-1995. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer as
9 * the first lines of this file unmodified.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
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27 * $FreeBSD: src/sys/boot/pc98/boot2/probe_keyboard.c,v 1.3 2003/09/08 09:11:20 obrien Exp $
28 * $DragonFly: src/sys/boot/pc98/boot2/Attic/probe_keyboard.c,v 1.3 2003/11/10 06:08:38 dillon Exp $
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29 */
30
31#include "boot.h"
32
33int probe_keyboard(void)
34{
35 /*
36 * New type (RA and later) keyboard only!
37 */
38 if (*(unsigned char*)V(0xA1481) & 0x48)
39 return 0;
40 return 1; /* keyboard not found */
41}
42