/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2000-2010 Steven J. Hill <sjhill@realitydiluted.com>
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* David Woodhouse <dwmw2@infradead.org>
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* Thomas Gleixner <tglx@linutronix.de>
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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 nand_chip;
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/*
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* Calculate 3 byte ECC code for eccsize byte block
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*/
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void __nand_calculate_ecc(const u_char *dat, unsigned int eccsize,
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u_char *ecc_code, bool sm_order);
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/*
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* Calculate 3 byte ECC code for 256/512 byte block
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*/
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int nand_calculate_ecc(struct nand_chip *chip, const u_char *dat,
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u_char *ecc_code);
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/*
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* Detect and correct a 1 bit error for eccsize byte block
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*/
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int __nand_correct_data(u_char *dat, u_char *read_ecc, u_char *calc_ecc,
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unsigned int eccsize, bool sm_order);
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/*
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* Detect and correct a 1 bit error for 256/512 byte block
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*/
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int nand_correct_data(struct nand_chip *chip, u_char *dat, u_char *read_ecc,
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u_char *calc_ecc);
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#endif /* __MTD_NAND_ECC_H__ */
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