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/*
 * Copyright © 2011 Ivan Djelic <ivan.djelic@parrot.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This file is the header for the NAND BCH ECC implementation.
 */

#ifndef __MTD_NAND_BCH_H__
#define __MTD_NAND_BCH_H__

struct mtd_info;
struct nand_bch_control;

#if defined(CONFIG_MTD_NAND_ECC_BCH)

static inline int mtd_nand_has_bch(void) { return 1; }

/*
 * Calculate BCH ecc code
 */
int nand_bch_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
			   u_char *ecc_code);

/*
 * Detect and correct bit errors
 */
int nand_bch_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc,
			  u_char *calc_ecc);
/*
 * Initialize BCH encoder/decoder
 */
struct nand_bch_control *nand_bch_init(struct mtd_info *mtd);
/*
 * Release BCH encoder/decoder resources
 */
void nand_bch_free(struct nand_bch_control *nbc);

#else /* !CONFIG_MTD_NAND_ECC_BCH */

static inline int mtd_nand_has_bch(void) { return 0; }

static inline int
nand_bch_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
		       u_char *ecc_code)
{
	return -1;
}

static inline int
nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
		      unsigned char *read_ecc, unsigned char *calc_ecc)
{
	return -ENOTSUPP;
}

static inline struct nand_bch_control *nand_bch_init(struct mtd_info *mtd)
{
	return NULL;
}

static inline void nand_bch_free(struct nand_bch_control *nbc) {}

#endif /* CONFIG_MTD_NAND_ECC_BCH */

#endif /* __MTD_NAND_BCH_H__ */

Filemanager

Name Type Size Permission Actions
bbm.h File 5.84 KB 0644
blktrans.h File 2.81 KB 0644
cfi.h File 10.31 KB 0644
cfi_endian.h File 2.13 KB 0644
concat.h File 1.14 KB 0644
doc2000.h File 6.03 KB 0644
flashchip.h File 3.08 KB 0644
ftl.h File 2.49 KB 0644
gen_probe.h File 1.26 KB 0644
inftl.h File 1.56 KB 0644
latch-addr-flash.h File 716 B 0644
lpc32xx_mlc.h File 531 B 0644
lpc32xx_slc.h File 531 B 0644
map.h File 13.37 KB 0644
mtd.h File 19.05 KB 0644
mtdram.h File 257 B 0644
nand-gpio.h File 330 B 0644
nand_bch.h File 1.56 KB 0644
nand_ecc.h File 1.14 KB 0644
ndfc.h File 2.2 KB 0644
nftl.h File 2.35 KB 0644
onenand.h File 7.87 KB 0644
onenand_regs.h File 7.15 KB 0644
partitions.h File 3.75 KB 0644
pfow.h File 5.56 KB 0644
physmap.h File 1 KB 0644
pismo.h File 440 B 0644
plat-ram.h File 817 B 0644
qinfo.h File 2.47 KB 0644
rawnand.h File 41.17 KB 0644
sh_flctl.h File 6.41 KB 0644
sharpsl.h File 587 B 0644
spear_smi.h File 1.67 KB 0644
spi-nor.h File 14.28 KB 0644
super.h File 835 B 0644
ubi.h File 10.33 KB 0644
xip.h File 2.66 KB 0644