54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/*
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* drivers/mtd/nand_ecc.h
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*
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* Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This file is the header for the ECC algorithm.
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*/
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#ifndef __MTD_NAND_ECC_H__
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#define __MTD_NAND_ECC_H__
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struct mtd_info;
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#if defined(CONFIG_MTD_ECC_SOFT)
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static inline int mtd_nand_has_ecc_soft(void) { return 1; }
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/*
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* Calculate 3 byte ECC code for 256 byte block
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*/
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int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code);
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/*
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* Detect and correct a 1 bit error for 256 byte block
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*/
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int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
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#else
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static inline int mtd_nand_has_ecc_soft(void) { return 0; }
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static inline int
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nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
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{
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return -1;
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}
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static inline int
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nand_correct_data(struct mtd_info *mtd,
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u_char *dat,
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u_char *read_ecc,
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u_char *calc_ecc)
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{
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return -1;
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}
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#endif
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#endif /* __MTD_NAND_ECC_H__ */
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