X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_ecc.h;h=60765176e8dce143c7c3f1ed972abe098cd8bf4b;hp=5f026a09a0f208a420e0d06a2f8b49648a7421ba;hb=a48028210bd3547399ecaed7b0138d6c43a1f547;hpb=68f0159122cfb94e6912dd99d6398ba72e578a72 diff --git a/yaffs_ecc.h b/yaffs_ecc.h index 5f026a0..6076517 100644 --- a/yaffs_ecc.h +++ b/yaffs_ecc.h @@ -1,27 +1,27 @@ /* - * YAFFS: Yet another FFS. A NAND-flash specific file system. + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. * - * yaffs_ecc.c: ECC generation/correction algorithms. - * - * Copyright (C) 2002 Aleph One Ltd. + * Copyright (C) 2002-2007 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering * * Created by Charles Manning * * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as + * 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. - * - */ +/* + * 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__ @@ -34,11 +34,11 @@ typedef struct { void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc); int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, - const unsigned char *test_ecc); + const unsigned char *test_ecc); void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, - yaffs_ECCOther * ecc); + yaffs_ECCOther *ecc); int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, - yaffs_ECCOther * read_ecc, - const yaffs_ECCOther * test_ecc); + yaffs_ECCOther *read_ecc, + const yaffs_ECCOther *test_ecc); #endif