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-rw-r--r--fs/yaffs2/yaffs_ecc.h44
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diff --git a/fs/yaffs2/yaffs_ecc.h b/fs/yaffs2/yaffs_ecc.h
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--- a/fs/yaffs2/yaffs_ecc.h
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-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2010 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-/*
- * This code implements the ECC algorithm used in SmartMedia.
- *
- * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes.
- * The two unused bit are set to 1.
- * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC
- * blocks are used on a 512-byte NAND page.
- *
- */
-
-#ifndef __YAFFS_ECC_H__
-#define __YAFFS_ECC_H__
-
-struct yaffs_ecc_other {
- unsigned char col_parity;
- unsigned line_parity;
- unsigned line_parity_prime;
-};
-
-void yaffs_ecc_cacl(const unsigned char *data, unsigned char *ecc);
-int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc,
- const unsigned char *test_ecc);
-
-void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes,
- struct yaffs_ecc_other *ecc);
-int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes,
- struct yaffs_ecc_other *read_ecc,
- const struct yaffs_ecc_other *test_ecc);
-#endif