patch-2.1.66 linux/drivers/char/ftape/lowlevel/ftape-bsm.h

• Lines: 68
• Date: Tue Nov 25 14:45:27 1997
• Orig file: v2.1.65/linux/drivers/char/ftape/lowlevel/ftape-bsm.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.65/linux/drivers/char/ftape/lowlevel/ftape-bsm.h linux/drivers/char/ftape/lowlevel/ftape-bsm.h
@@ -0,0 +1,67 @@
+#ifndef _FTAPE_BSM_H
+#define _FTAPE_BSM_H
+
+/*
+ * Copyright (C) 1994-1996 Bas Laarhoven,
+ *           (C) 1996-1997 Claus-Justus Heine.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING.  If not, write to
+ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ *
+ * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-bsm.h,v $
+ * $Revision: 1.2 $
+ * $Date: 1997/10/05 19:18:07 $
+ *
+ *      This file contains definitions for the bad sector map handling
+ *      routines for the QIC-117 floppy-tape driver for Linux.
+ */
+
+#include <linux/ftape.h>
+#include <linux/ftape-header-segment.h>
+
+#define EMPTY_SEGMENT           (0xffffffff)
+#define FAKE_SEGMENT            (0xfffffffe)
+
+/*  maximum (format code 4) bad sector map size (bytes).
+ */
+#define BAD_SECTOR_MAP_SIZE     (29 * SECTOR_SIZE - 256)
+
+/*  format code 4 bad sector entry, ftape uses this
+ *  internally for all format codes
+ */
+typedef __u32 SectorMap;
+/*  variable and 1100 ft bad sector map entry. These three bytes represent
+ *  a single sector address measured from BOT. 
+ */
+typedef struct NewSectorMap {          
+	__u8 bytes[3];
+} SectorCount __attribute__((packed));
+
+
+/*
+ *      ftape-bsm.c defined global vars.
+ */
+
+/*
+ *      ftape-bsm.c defined global functions.
+ */
+extern void update_bad_sector_map(__u8 * buffer);
+extern void ftape_extract_bad_sector_map(__u8 * buffer);
+extern SectorMap ftape_get_bad_sector_entry(int segment_id);
+extern void      ftape_put_bad_sector_entry(int segment_id, SectorMap mask);
+extern __u8 *ftape_find_end_of_bsm_list(__u8 * address);
+extern void ftape_init_bsm(void);
+
+#endif