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 } __attribute__((packed)) 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 void ftape_put_bad_sector_entry(int segment_id, SectorMap mask); 64 extern __u8 *ftape_find_end_of_bsm_list(__u8 * address); 65 extern void ftape_init_bsm(void); 66 67 #endif 68