X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_ecc.h;h=5f026a09a0f208a420e0d06a2f8b49648a7421ba;hp=f96d7077a72efb1ad6e8a2bf9d4e30f20d7ee56f;hb=730a00c0527f2c63413598925b600af86b76db86;hpb=363520161b021b7ac870c269064606e3f16feeeb diff --git a/yaffs_ecc.h b/yaffs_ecc.h index f96d707..5f026a0 100644 --- a/yaffs_ecc.h +++ b/yaffs_ecc.h @@ -12,30 +12,33 @@ * published by the Free Software Foundation. * */ - + /* - * 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__ -typedef struct -{ +typedef struct { unsigned char colParity; unsigned lineParity; unsigned lineParityPrime; } yaffs_ECCOther; -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); +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); -void yaffs_ECCCalculateOther(const unsigned char *data,unsigned nBytes, yaffs_ECCOther *ecc); -int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, yaffs_ECCOther *read_ecc, const yaffs_ECCOther *test_ecc); +void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, + yaffs_ECCOther * ecc); +int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, + yaffs_ECCOther * read_ecc, + const yaffs_ECCOther * test_ecc); #endif