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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [char/] [ftape/] [lowlevel/] [ftape-bsm.h] - Rev 1275

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#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: /home/marcus/revision_ctrl_test/oc_cvs/cvs/or1k/linux/linux-2.4/drivers/char/ftape/lowlevel/ftape-bsm.h,v $
 * $Revision: 1.1.1.1 $
 * $Date: 2004-04-15 02:02:36 $
 *
 *      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
 

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