X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_ecc.h;h=17d47bd80f3e3eddc254bacedfea65b312443e70;hp=f505ab5f83a280735f5d320a53136a8e2f2d60e2;hb=e8bdf6a905e8e37b82fb310306f96ab4de930923;hpb=f330fefa27f2c87f7dff414fe6227261327663b7 diff --git a/yaffs_ecc.h b/yaffs_ecc.h index f505ab5..17d47bd 100644 --- a/yaffs_ecc.h +++ b/yaffs_ecc.h @@ -1,7 +1,7 @@ /* * YAFFS: Yet another Flash File System . A NAND-flash specific file system. * - * Copyright (C) 2002-2010 Aleph One Ltd. + * Copyright (C) 2002-2011 Aleph One Ltd. * for Toby Churchill Ltd and Brightstar Engineering * * Created by Charles Manning @@ -18,27 +18,27 @@ * * 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. + * 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__ -typedef struct { +struct yaffs_ecc_other { unsigned char col_parity; unsigned line_parity; unsigned line_parity_prime; -} yaffs_ecc_other; +}; -void yaffs_ecc_cacl(const unsigned char *data, unsigned char *ecc); +void yaffs_ecc_calc(const unsigned char *data, unsigned char *ecc); int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc, - const unsigned char *test_ecc); + const unsigned char *test_ecc); void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes, - yaffs_ecc_other *ecc); + struct yaffs_ecc_other *ecc); int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes, - yaffs_ecc_other *read_ecc, - const yaffs_ecc_other *test_ecc); + struct yaffs_ecc_other *read_ecc, + const struct yaffs_ecc_other *test_ecc); #endif