| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _FTAPE_BSM_H |
| 2 | #define _FTAPE_BSM_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright (C) 1994-1996 Bas Laarhoven, |
| 6 | * (C) 1996-1997 Claus-Justus Heine. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2, or (at your option) |
| 11 | any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; see the file COPYING. If not, write to |
| 20 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 | |
| 22 | * |
| 23 | * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-bsm.h,v $ |
| 24 | * $Revision: 1.2 $ |
| 25 | * $Date: 1997/10/05 19:18:07 $ |
| 26 | * |
| 27 | * This file contains definitions for the bad sector map handling |
| 28 | * routines for the QIC-117 floppy-tape driver for Linux. |
| 29 | */ |
| 30 | |
| 31 | #include <linux/ftape.h> |
| 32 | #include <linux/ftape-header-segment.h> |
| 33 | |
| 34 | #define EMPTY_SEGMENT (0xffffffff) |
| 35 | #define FAKE_SEGMENT (0xfffffffe) |
| 36 | |
| 37 | /* maximum (format code 4) bad sector map size (bytes). |
| 38 | */ |
| 39 | #define BAD_SECTOR_MAP_SIZE (29 * SECTOR_SIZE - 256) |
| 40 | |
| 41 | /* format code 4 bad sector entry, ftape uses this |
| 42 | * internally for all format codes |
| 43 | */ |
| 44 | typedef __u32 SectorMap; |
| 45 | /* variable and 1100 ft bad sector map entry. These three bytes represent |
| 46 | * a single sector address measured from BOT. |
| 47 | */ |
| 48 | typedef struct NewSectorMap { |
| 49 | __u8 bytes[3]; |
| 50 | } SectorCount; |
| 51 | |
| 52 | |
| 53 | /* |
| 54 | * ftape-bsm.c defined global vars. |
| 55 | */ |
| 56 | |
| 57 | /* |
| 58 | * ftape-bsm.c defined global functions. |
| 59 | */ |
| 60 | extern void update_bad_sector_map(__u8 * buffer); |
| 61 | extern void ftape_extract_bad_sector_map(__u8 * buffer); |
| 62 | extern SectorMap ftape_get_bad_sector_entry(int segment_id); |
| 63 | extern __u8 *ftape_find_end_of_bsm_list(__u8 * address); |
| 64 | extern void ftape_init_bsm(void); |
| 65 | |
| 66 | #endif |