| /* 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__ */ |
