[src/trunk]: src/sys/arch/vax/vax Add dkbad, from 4.4.

[ragge <ragge%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d983b2aaddf2
branches:  trunk
changeset: 525927:d983b2aaddf2
user:      ragge <ragge%NetBSD.org@localhost>
date:      Sun Apr 21 20:56:33 2002 +0000

description:
Add dkbad, from 4.4.

diffstat:

 sys/arch/vax/vax/dkbad.c |  67 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 67 insertions(+), 0 deletions(-)

diffs (71 lines):

diff -r 0a43b0f6128e -r d983b2aaddf2 sys/arch/vax/vax/dkbad.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/vax/vax/dkbad.c  Sun Apr 21 20:56:33 2002 +0000
@@ -0,0 +1,67 @@
+/*     $NetBSD: dkbad.c,v 1.1 2002/04/21 20:56:33 ragge Exp $  */
+/*-
+ * Copyright (c) 1982, 1986 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ *     @(#)dkbad.c     7.3 (Berkeley) 5/9/91
+ */
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: dkbad.c,v 1.1 2002/04/21 20:56:33 ragge Exp $");
+
+#ifndef NOBADSECT
+#include <sys/param.h>
+#include <sys/buf.h>
+#include <sys/dkbad.h>
+
+/*
+ * Search the bad sector table looking for
+ * the specified sector.  Return index if found.
+ * Return -1 if not found.
+ */
+
+int
+isbad(struct dkbad *bt, int cyl, int trk, int sec)
+{
+       int i;
+       long blk, bblk;
+
+       blk = ((long)cyl << 16) + (trk << 8) + sec;
+       for (i = 0; i < 126; i++) {
+               bblk = ((long)bt->bt_bad[i].bt_cyl << 16) +
+                   bt->bt_bad[i].bt_trksec;
+               if (blk == bblk)
+                       return (i);
+               if (blk < bblk || bblk < 0)
+                       break;
+       }
+       return (-1);
+}
+#endif