root/drivers/char/ftape/ftape-bsm.h

/* */

INCLUDED FROM

   1 #ifndef _FTAPE_BSM_H
   2 #define _FTAPE_BSM_H
   3 
   4 /*
   5  * Copyright (C) 1994-1995 Bas Laarhoven.
   6 
   7  This program is free software; you can redistribute it and/or modify
   8  it under the terms of the GNU General Public License as published by
   9  the Free Software Foundation; either version 2, or (at your option)
  10  any later version.
  11 
  12  This program is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  GNU General Public License for more details.
  16 
  17  You should have received a copy of the GNU General Public License
  18  along with this program; see the file COPYING.  If not, write to
  19  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20 
  21  *
  22  $Source: /home/bas/distr/ftape-2.03b/RCS/ftape-bsm.h,v $
  23  $Author: bas $
  24  *
  25  $Revision: 1.5 $
  26  $Date: 1995/04/22 07:30:15 $
  27  $State: Beta $
  28  *
  29  *      This file contains definitions for the bad sector map handling
  30  *      routines for the QIC-117 floppy-tape driver for Linux.
  31  */
  32 
  33 #define EMPTY_SEGMENT           (0xffffffff)
  34 #define FAKE_SEGMENT            (0xfffffffe)
  35 
  36 /*  failed sector log size (only used if format code != 4).
  37  */
  38 #define FAILED_SECTOR_LOG_SIZE  (2 * SECTOR_SIZE - 256)
  39 
  40 /*  maximum (format code 4) bad sector map size (bytes).
  41  */
  42 #define BAD_SECTOR_MAP_SIZE     (29 * SECTOR_SIZE - 256)
  43 
  44 /*
  45  *      ftape-io.c defined global vars.
  46  */
  47 extern bad_sector_map_changed;
  48 
  49 /*
  50  *      ftape-io.c defined global functions.
  51  */
  52 extern void update_bad_sector_map(byte * buffer);
  53 extern void store_bad_sector_map(byte * buffer);
  54 extern void extract_bad_sector_map(byte * buffer);
  55 extern unsigned long get_bad_sector_entry(int segment_id);
  56 extern void put_bad_sector_entry(int segment_id, unsigned long mask);
  57 extern void add_segment_to_bad_sector_map(unsigned segment);
  58 extern void clear_bad_sector_map(int count);
  59 extern byte *find_end_of_bsm_list(byte * ptr, byte * limit);
  60 extern void ftape_init_bsm(void);
  61 
  62 #endif

/* */