diff options
Diffstat (limited to 'drivers/char/ftape/lowlevel/ftape-ecc.h')
-rw-r--r-- | drivers/char/ftape/lowlevel/ftape-ecc.h | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/drivers/char/ftape/lowlevel/ftape-ecc.h b/drivers/char/ftape/lowlevel/ftape-ecc.h deleted file mode 100644 index 4829146fe9a..00000000000 --- a/drivers/char/ftape/lowlevel/ftape-ecc.h +++ /dev/null @@ -1,84 +0,0 @@ -#ifndef _FTAPE_ECC_H_ -#define _FTAPE_ECC_H_ - -/* - * Copyright (C) 1993 Ning and David Mosberger. - * Original: - * Copyright (C) 1993 Bas Laarhoven. - * Copyright (C) 1992 David L. Brown, Jr. - - 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/ftape/lowlevel/ftape-ecc.h,v $ - * $Revision: 1.2 $ - * $Date: 1997/10/05 19:18:11 $ - * - * This file contains the definitions for the - * Reed-Solomon error correction code - * for the QIC-40/80 tape streamer device driver. - */ - -#include "../lowlevel/ftape-bsm.h" - -#define BAD_CLEAR(entry) ((entry)=0) -#define BAD_SET(entry,sector) ((entry)|=(1<<(sector))) -#define BAD_CHECK(entry,sector) ((entry)&(1<<(sector))) - -/* - * Return values for ecc_correct_data: - */ -enum { - ECC_OK, /* Data was correct. */ - ECC_CORRECTED, /* Correctable error in data. */ - ECC_FAILED, /* Could not correct data. */ -}; - -/* - * Representation of an in memory segment. MARKED_BAD lists the - * sectors that were marked bad during formatting. If the N-th sector - * in a segment is marked bad, bit 1<<N will be set in MARKED_BAD. - * The sectors should be read in from the disk and packed, as if the - * bad sectors were not there, and the segment just contained fewer - * sectors. READ_SECTORS is a bitmap of errors encountered while - * reading the data. These offsets are relative to the packed data. - * BLOCKS is a count of the sectors not marked bad. This is just to - * prevent having to count the zero bits in MARKED_BAD each time this - * is needed. DATA is the actual sector packed data from (or to) the - * tape. - */ - struct memory_segment { - SectorMap marked_bad; - SectorMap read_bad; - int blocks; - __u8 *data; - SectorMap corrected; - }; - -/* - * ecc.c defined global variables: - */ -#ifdef TEST -extern int ftape_ecc_tracing; -#endif - -/* - * ecc.c defined global functions: - */ -extern int ftape_ecc_correct_data(struct memory_segment *data); -extern int ftape_ecc_set_segment_parity(struct memory_segment *data); - -#endif /* _FTAPE_ECC_H_ */ |