i386_get_ioperm.c revision 37917 
1/*-
2 * Copyright (c) 1998 Jonathan Lemon
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	$Id: i386_get_ioperm.c,v 1.1 1998/07/28 03:39:03 jlemon Exp $
27 */
28
29#if defined(LIBC_RCS) && !defined(lint)
30static const char rcsid[] = "$Id: i386_get_ioperm.c,v 1.1 1998/07/28 03:39:03 jlemon Exp $";
31#endif /* LIBC_RCS and not lint */
32
33#include <machine/sysarch.h>
34
35struct parms {
36	unsigned int 	start;
37	unsigned int	length;
38        int	 	enable;
39};
40
41int
42i386_get_ioperm(unsigned int start, unsigned int *length, int *enable)
43{
44	struct parms p;
45	int error;
46
47	p.start = start;
48	p.length = *length;
49	p.enable = *enable;
50
51	error = sysarch(I386_GET_IOPERM, (char *)&p);
52
53	*length = p.length;
54	*enable = p.enable;
55
56	return (error);
57}
58