patch-2.1.66 linux/drivers/char/ftape/ecc.h

• Lines: 86
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.1.65/linux/drivers/char/ftape/ecc.h
• Orig date: Wed Mar 6 05:07:19 1996

diff -u --recursive --new-file v2.1.65/linux/drivers/char/ftape/ecc.h linux/drivers/char/ftape/ecc.h
@@ -1,85 +0,0 @@
-/*
- *      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: /home/bas/distr/ftape-2.03b/RCS/ecc.h,v $
- * $Author: bas $
- *
- * $Revision: 1.20 $
- * $Date: 1995/01/08 14:16:21 $
- * $State: Beta $
- *
- *      This file contains the definitions for the
- *      Reed-Solomon error correction code 
- *      for the QIC-40/80 tape streamer device driver.
- */
-#ifndef _ecc_h_
-#define _ecc_h_
-
-typedef unsigned long BAD_SECTOR;
-#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 {
-	BAD_SECTOR marked_bad;
-	BAD_SECTOR read_bad;
-	int blocks;
-	unsigned char *data;
-	BAD_SECTOR corrected;
-};
-
-/*
- * ecc.c defined global variables:
- */
-#ifdef TEST
-extern int ftape_ecc_tracing;
-#endif
-
-/*
- * ecc.c defined global functions:
- */
-extern int ecc_correct_data(struct memory_segment *data);
-extern int ecc_set_segment_parity(struct memory_segment *data);
-
-#endif	/* _ecc_h_ */