From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/linux/ftape-header-segment.h | 122 +++++++++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 include/linux/ftape-header-segment.h (limited to 'include/linux/ftape-header-segment.h') diff --git a/include/linux/ftape-header-segment.h b/include/linux/ftape-header-segment.h new file mode 100644 index 00000000000..4732218f070 --- /dev/null +++ b/include/linux/ftape-header-segment.h @@ -0,0 +1,122 @@ +#ifndef _FTAPE_HEADER_SEGMENT_H +#define _FTAPE_HEADER_SEGMENT_H + +/* + * Copyright (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: /homes/cvs/ftape-stacked/include/linux/ftape-header-segment.h,v $ + * $Revision: 1.2 $ + * $Date: 1997/10/05 19:19:28 $ + * + * This file defines some offsets into the header segment of a + * floppy tape cartridge. For use with the QIC-40/80/3010/3020 + * floppy-tape driver "ftape" for Linux. + */ + +#define FT_SIGNATURE 0 /* must be 0xaa55aa55 */ +#define FT_FMT_CODE 4 +#define FT_REV_LEVEL 5 /* only for QIC-80 since. Rev. L (== 0x0c) */ +#define FT_HSEG_1 6 /* first header segment, except for format code 6 */ +#define FT_HSEG_2 8 /* second header segment, except for format code 6 */ +#define FT_FRST_SEG 10 /* first data segment, except for format code 6 */ +#define FT_LAST_SEG 12 /* last data segment, except for format code 6 */ +#define FT_FMT_DATE 14 /* date and time of most recent format, see below */ +#define FT_WR_DATE 18 /* date and time of most recent write or format */ +#define FT_SPT 24 /* segments per track */ +#define FT_TPC 26 /* tracks per cartridge */ +#define FT_FHM 27 /* floppy drive head (maximum of it) */ +#define FT_FTM 28 /* floppy track max. */ +#define FT_FSM 29 /* floppy sector max. (128) */ +#define FT_LABEL 30 /* floppy tape label */ +#define FT_LABEL_DATE 74 /* date and time the tape label was written */ +#define FT_LABEL_SZ (FT_LABEL_DATE - FT_LABEL) +#define FT_CMAP_START 78 /* starting segment of compression map */ +#define FT_FMT_ERROR 128 /* must be set to 0xff if remainder gets lost during + * tape format + */ +#define FT_SEG_CNT 130 /* number of seg. written, formatted or verified + * through lifetime of tape (why not read?) + */ +#define FT_INIT_DATE 138 /* date and time of initial tape format */ +#define FT_FMT_CNT 142 /* number of times tape has been formatted */ +#define FT_FSL_CNT 144 /* number of segments in failed sector log */ +#define FT_MK_CODE 146 /* id string of tape manufacturer */ +#define FT_LOT_CODE 190 /* tape manufacturer lot code */ +#define FT_6_HSEG_1 234 /* first header segment for format code 6 */ +#define FT_6_HSEG_2 238 /* second header segment for format code 6 */ +#define FT_6_FRST_SEG 242 /* first data segment for format code 6 */ +#define FT_6_LAST_SEG 246 /* last data segment for format code 6 */ + +#define FT_FSL 256 +#define FT_HEADER_END 256 /* space beyond this point: + * format codes 2, 3 and 5: + * - failed sector log until byte 2047 + * - bad sector map in the reamining part of segment + * format codes 4 and 6: + * - bad sector map starts hear + */ + + +/* value to be stored at the FT_SIGNATURE offset + */ +#define FT_HSEG_MAGIC 0xaa55aa55 +#define FT_D2G_MAGIC 0x82288228 /* Ditto 2GB */ + +/* data and time encoding: */ +#define FT_YEAR_SHIFT 25 +#define FT_YEAR_MASK 0xfe000000 +#define FT_YEAR_0 1970 +#define FT_YEAR_MAX 127 +#define FT_YEAR(year) ((((year)-FT_YEAR_0)<