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