1214518Srpaulo/*	$NetBSD: dkbad.c,v 1.11 2005/12/11 12:16:26 christos Exp $	*/
2190214Srpaulo
3190214Srpaulo/*
4190214Srpaulo * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
5190214Srpaulo * All rights reserved.
6190214Srpaulo *
7190214Srpaulo * Redistribution and use in source and binary forms, with or without
8190214Srpaulo * modification, are permitted provided that the following conditions
9190214Srpaulo * are met:
10190214Srpaulo * 1. Redistributions of source code must retain the above copyright
11190214Srpaulo *    notice, this list of conditions and the following disclaimer.
12190214Srpaulo * 2. Redistributions in binary form must reproduce the above copyright
13190214Srpaulo *    notice, this list of conditions and the following disclaimer in the
14190214Srpaulo *    documentation and/or other materials provided with the distribution.
15190214Srpaulo * 3. Neither the name of the University nor the names of its contributors
16190214Srpaulo *    may be used to endorse or promote products derived from this software
17190214Srpaulo *    without specific prior written permission.
18190214Srpaulo *
19190214Srpaulo * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20190214Srpaulo * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21190214Srpaulo * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22190214Srpaulo * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23190214Srpaulo * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24190214Srpaulo * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25190214Srpaulo * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26190214Srpaulo * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27190214Srpaulo * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28190214Srpaulo * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29190214Srpaulo * SUCH DAMAGE.
30190214Srpaulo *
31190214Srpaulo *	@(#)dkbad.c	7.2 (Berkeley) 12/16/90
32190214Srpaulo */
33190214Srpaulo
34190214Srpaulo#ifndef NOBADSECT
35190214Srpaulo
36190214Srpaulo#include <sys/cdefs.h>
37190214Srpaulo__KERNEL_RCSID(0, "$NetBSD: dkbad.c,v 1.11 2005/12/11 12:16:26 christos Exp $");
38190214Srpaulo
39190214Srpaulo#include <sys/param.h>
40190214Srpaulo#include <sys/buf.h>
41190214Srpaulo#include <sys/dkbad.h>
42190214Srpaulo
43190214Srpauloint isbad(struct dkbad *, int, int, int);
44190214Srpaulo
45190214Srpaulo/*
46190214Srpaulo * Search the bad sector table looking for
47190214Srpaulo * the specified sector.  Return index if found.
48190214Srpaulo * Return -1 if not found.
49190214Srpaulo */
50190214Srpaulo
51190214Srpauloint
52190214Srpauloisbad(register struct dkbad *bt, int cyl, int trk, int sec)
53{
54	register int i;
55	register long blk, bblk;
56
57	blk = ((long)cyl << 16) + (trk << 8) + sec;
58	for (i = 0; i < 126; i++) {
59		bblk = ((long)bt->bt_bad[i].bt_cyl << 16) + bt->bt_bad[i].bt_trksec;
60		if (blk == bblk)
61			return (i);
62		if (blk < bblk || bblk < 0)
63			break;
64	}
65	return (-1);
66}
67#endif
68