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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 |