diff options
author | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-09-30 01:01:19 +0200 |
---|---|---|
committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-12-10 22:37:29 +0100 |
commit | 90ccf0a0192f7fa06e52de80cb528c5217e3e297 (patch) | |
tree | 88c17c9cc4be02808cd4110ac9490b3a2f91b9d2 | |
parent | mtd: nand: ecc-hamming: Cleanup and style fixes (diff) | |
download | linux-90ccf0a0192f7fa06e52de80cb528c5217e3e297.tar.xz linux-90ccf0a0192f7fa06e52de80cb528c5217e3e297.zip |
mtd: nand: ecc-hamming: Rename the exported functions
Prefix by ecc_sw_hamming_ the functions which should be internal only
but are exported for "raw" operations.
Prefix by nand_ecc_sw_hamming_ the other functions which will be used
in the context of the declaration of an Hamming proper ECC engine
object.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200929230124.31491-16-miquel.raynal@bootlin.com
-rw-r--r-- | drivers/mtd/nand/ecc-sw-hamming.c | 53 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/cs553x_nand.c | 3 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/fsmc_nand.c | 2 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/lpc32xx_slc.c | 2 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/nand_base.c | 25 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/ndfc.c | 3 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/sharpsl.c | 2 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/tmio_nand.c | 6 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/txx9ndfmc.c | 4 | ||||
-rw-r--r-- | drivers/mtd/sm_ftl.c | 28 | ||||
-rw-r--r-- | drivers/mtd/tests/mtd_nandecctest.c | 29 | ||||
-rw-r--r-- | include/linux/mtd/nand-ecc-sw-hamming.h | 36 | ||||
-rw-r--r-- | include/linux/mtd/rawnand.h | 7 |
13 files changed, 108 insertions, 92 deletions
diff --git a/drivers/mtd/nand/ecc-sw-hamming.c b/drivers/mtd/nand/ecc-sw-hamming.c index 771e27ed8883..7ee0387ecb29 100644 --- a/drivers/mtd/nand/ecc-sw-hamming.c +++ b/drivers/mtd/nand/ecc-sw-hamming.c @@ -75,7 +75,7 @@ static const char bitsperbyte[256] = { * addressbits is a lookup table to filter out the bits from the xor-ed * ECC data that identify the faulty location. * this is only used for repairing parity - * see the comments in nand_correct_data for more details + * see the comments in nand_ecc_sw_hamming_correct for more details */ static const char addressbits[256] = { 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x01, 0x01, @@ -112,11 +112,11 @@ static const char addressbits[256] = { 0x0e, 0x0e, 0x0f, 0x0f, 0x0e, 0x0e, 0x0f, 0x0f }; -void __nand_calculate_ecc(const unsigned char *buf, unsigned int eccsize, - unsigned char *code, bool sm_order) +int ecc_sw_hamming_calculate(const unsigned char *buf, unsigned int step_size, + unsigned char *code, bool sm_order) { const u32 *bp = (uint32_t *)buf; - const u32 eccsize_mult = eccsize >> 8; + const u32 eccsize_mult = step_size >> 8; /* current value in buffer */ u32 cur; /* rp0..rp17 are the various accumulated parities (per byte) */ @@ -347,31 +347,32 @@ void __nand_calculate_ecc(const unsigned char *buf, unsigned int eccsize, (invparity[par & 0x55] << 2) | (invparity[rp17] << 1) | (invparity[rp16] << 0); + + return 0; } -EXPORT_SYMBOL(__nand_calculate_ecc); +EXPORT_SYMBOL(ecc_sw_hamming_calculate); /** - * nand_calculate_ecc - Calculate 3-byte ECC for 256/512-byte block - * @chip: NAND chip object + * nand_ecc_sw_hamming_calculate - Calculate 3-byte ECC for 256/512-byte block + * @nand: NAND device * @buf: Input buffer with raw data * @code: Output buffer with ECC */ -int nand_calculate_ecc(struct nand_chip *chip, const unsigned char *buf, - unsigned char *code) +int nand_ecc_sw_hamming_calculate(struct nand_device *nand, + const unsigned char *buf, unsigned char *code) { + struct nand_chip *chip = mtd_to_nand(nanddev_to_mtd(nand)); bool sm_order = chip->ecc.options & NAND_ECC_SOFT_HAMMING_SM_ORDER; - __nand_calculate_ecc(buf, chip->ecc.size, code, sm_order); - - return 0; + return ecc_sw_hamming_calculate(buf, chip->ecc.size, code, sm_order); } -EXPORT_SYMBOL(nand_calculate_ecc); +EXPORT_SYMBOL(nand_ecc_sw_hamming_calculate); -int __nand_correct_data(unsigned char *buf, - unsigned char *read_ecc, unsigned char *calc_ecc, - unsigned int eccsize, bool sm_order) +int ecc_sw_hamming_correct(unsigned char *buf, unsigned char *read_ecc, + unsigned char *calc_ecc, unsigned int step_size, + bool sm_order) { - const u32 eccsize_mult = eccsize >> 8; + const u32 eccsize_mult = step_size >> 8; unsigned char b0, b1, b2, bit_addr; unsigned int byte_addr; @@ -437,26 +438,28 @@ int __nand_correct_data(unsigned char *buf, pr_err("%s: uncorrectable ECC error\n", __func__); return -EBADMSG; } -EXPORT_SYMBOL(__nand_correct_data); +EXPORT_SYMBOL(ecc_sw_hamming_correct); /** - * nand_correct_data - Detect and correct bit error(s) - * @chip: NAND chip object + * nand_ecc_sw_hamming_correct - Detect and correct bit error(s) + * @nand: NAND device * @buf: Raw data read from the chip * @read_ecc: ECC bytes read from the chip * @calc_ecc: ECC calculated from the raw data * * Detect and correct up to 1 bit error per 256/512-byte block. */ -int nand_correct_data(struct nand_chip *chip, unsigned char *buf, - unsigned char *read_ecc, unsigned char *calc_ecc) +int nand_ecc_sw_hamming_correct(struct nand_device *nand, unsigned char *buf, + unsigned char *read_ecc, + unsigned char *calc_ecc) { + struct nand_chip *chip = mtd_to_nand(nanddev_to_mtd(nand)); bool sm_order = chip->ecc.options & NAND_ECC_SOFT_HAMMING_SM_ORDER; - return __nand_correct_data(buf, read_ecc, calc_ecc, chip->ecc.size, - sm_order); + return ecc_sw_hamming_correct(buf, read_ecc, calc_ecc, chip->ecc.size, + sm_order); } -EXPORT_SYMBOL(nand_correct_data); +EXPORT_SYMBOL(nand_ecc_sw_hamming_correct); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Frans Meulenbroeks <fransmeulenbroeks@gmail.com>"); diff --git a/drivers/mtd/nand/raw/cs553x_nand.c b/drivers/mtd/nand/raw/cs553x_nand.c index 9a2bdb45a771..6edf78c16fc8 100644 --- a/drivers/mtd/nand/raw/cs553x_nand.c +++ b/drivers/mtd/nand/raw/cs553x_nand.c @@ -19,7 +19,6 @@ #include <linux/delay.h> #include <linux/mtd/mtd.h> #include <linux/mtd/rawnand.h> -#include <linux/mtd/nand-ecc-sw-hamming.h> #include <linux/mtd/partitions.h> #include <linux/iopoll.h> @@ -252,7 +251,7 @@ static int cs553x_attach_chip(struct nand_chip *chip) chip->ecc.bytes = 3; chip->ecc.hwctl = cs_enable_hwecc; chip->ecc.calculate = cs_calculate_ecc; - chip->ecc.correct = nand_correct_data; + chip->ecc.correct = rawnand_sw_hamming_correct; chip->ecc.strength = 1; return 0; diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c index e880db5852d8..1e2ed45be2f1 100644 --- a/drivers/mtd/nand/raw/fsmc_nand.c +++ b/drivers/mtd/nand/raw/fsmc_nand.c @@ -918,7 +918,7 @@ static int fsmc_nand_attach_chip(struct nand_chip *nand) case NAND_ECC_ENGINE_TYPE_ON_HOST: dev_info(host->dev, "Using 1-bit HW ECC scheme\n"); nand->ecc.calculate = fsmc_read_hwecc_ecc1; - nand->ecc.correct = nand_correct_data; + nand->ecc.correct = rawnand_sw_hamming_correct; nand->ecc.hwctl = fsmc_enable_hwecc; nand->ecc.bytes = 3; nand->ecc.strength = 1; diff --git a/drivers/mtd/nand/raw/lpc32xx_slc.c b/drivers/mtd/nand/raw/lpc32xx_slc.c index 0bf9c3fbcd82..beecabfa5181 100644 --- a/drivers/mtd/nand/raw/lpc32xx_slc.c +++ b/drivers/mtd/nand/raw/lpc32xx_slc.c @@ -803,7 +803,7 @@ static int lpc32xx_nand_attach_chip(struct nand_chip *chip) chip->ecc.write_oob = lpc32xx_nand_write_oob_syndrome; chip->ecc.read_oob = lpc32xx_nand_read_oob_syndrome; chip->ecc.calculate = lpc32xx_nand_ecc_calculate; - chip->ecc.correct = nand_correct_data; + chip->ecc.correct = rawnand_sw_hamming_correct; chip->ecc.hwctl = lpc32xx_nand_ecc_enable; /* diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index bee7c64a0a4e..32e9870a2cf8 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -5139,6 +5139,27 @@ static void nand_scan_ident_cleanup(struct nand_chip *chip) kfree(chip->parameters.onfi); } +int rawnand_sw_hamming_calculate(struct nand_chip *chip, + const unsigned char *buf, + unsigned char *code) +{ + struct nand_device *base = &chip->base; + + return nand_ecc_sw_hamming_calculate(base, buf, code); +} +EXPORT_SYMBOL(rawnand_sw_hamming_calculate); + +int rawnand_sw_hamming_correct(struct nand_chip *chip, + unsigned char *buf, + unsigned char *read_ecc, + unsigned char *calc_ecc) +{ + struct nand_device *base = &chip->base; + + return nand_ecc_sw_hamming_correct(base, buf, read_ecc, calc_ecc); +} +EXPORT_SYMBOL(rawnand_sw_hamming_correct); + int rawnand_sw_bch_init(struct nand_chip *chip) { struct nand_device *base = &chip->base; @@ -5263,8 +5284,8 @@ static int nand_set_ecc_soft_ops(struct nand_chip *chip) switch (ecc->algo) { case NAND_ECC_ALGO_HAMMING: - ecc->calculate = nand_calculate_ecc; - ecc->correct = nand_correct_data; + ecc->calculate = rawnand_sw_hamming_calculate; + ecc->correct = rawnand_sw_hamming_correct; ecc->read_page = nand_read_page_swecc; ecc->read_subpage = nand_read_subpage; ecc->write_page = nand_write_page_swecc; diff --git a/drivers/mtd/nand/raw/ndfc.c b/drivers/mtd/nand/raw/ndfc.c index 8cda6633280b..338d6b1a189e 100644 --- a/drivers/mtd/nand/raw/ndfc.c +++ b/drivers/mtd/nand/raw/ndfc.c @@ -18,7 +18,6 @@ */ #include <linux/module.h> #include <linux/mtd/rawnand.h> -#include <linux/mtd/nand-ecc-sw-hamming.h> #include <linux/mtd/partitions.h> #include <linux/mtd/ndfc.h> #include <linux/slab.h> @@ -146,7 +145,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, chip->controller = &ndfc->ndfc_control; chip->legacy.read_buf = ndfc_read_buf; chip->legacy.write_buf = ndfc_write_buf; - chip->ecc.correct = nand_correct_data; + chip->ecc.correct = rawnand_sw_hamming_correct; chip->ecc.hwctl = ndfc_enable_hwecc; chip->ecc.calculate = ndfc_calculate_ecc; chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST; diff --git a/drivers/mtd/nand/raw/sharpsl.c b/drivers/mtd/nand/raw/sharpsl.c index 2fae6ade8b13..3f55b523aead 100644 --- a/drivers/mtd/nand/raw/sharpsl.c +++ b/drivers/mtd/nand/raw/sharpsl.c @@ -107,7 +107,7 @@ static int sharpsl_attach_chip(struct nand_chip *chip) chip->ecc.strength = 1; chip->ecc.hwctl = sharpsl_nand_enable_hwecc; chip->ecc.calculate = sharpsl_nand_calculate_ecc; - chip->ecc.correct = nand_correct_data; + chip->ecc.correct = rawnand_sw_hamming_correct; return 0; } diff --git a/drivers/mtd/nand/raw/tmio_nand.c b/drivers/mtd/nand/raw/tmio_nand.c index fadca0b9e21f..29edacbec826 100644 --- a/drivers/mtd/nand/raw/tmio_nand.c +++ b/drivers/mtd/nand/raw/tmio_nand.c @@ -293,11 +293,11 @@ static int tmio_nand_correct_data(struct nand_chip *chip, unsigned char *buf, int r0, r1; /* assume ecc.size = 512 and ecc.bytes = 6 */ - r0 = __nand_correct_data(buf, read_ecc, calc_ecc, 256, false); + r0 = rawnand_sw_hamming_correct(chip, buf, read_ecc, calc_ecc); if (r0 < 0) return r0; - r1 = __nand_correct_data(buf + 256, read_ecc + 3, calc_ecc + 3, 256, - false); + r1 = rawnand_sw_hamming_correct(chip, buf + 256, read_ecc + 3, + calc_ecc + 3); if (r1 < 0) return r1; return r0 + r1; diff --git a/drivers/mtd/nand/raw/txx9ndfmc.c b/drivers/mtd/nand/raw/txx9ndfmc.c index 68b920eab6c8..a705523eb916 100644 --- a/drivers/mtd/nand/raw/txx9ndfmc.c +++ b/drivers/mtd/nand/raw/txx9ndfmc.c @@ -194,8 +194,8 @@ static int txx9ndfmc_correct_data(struct nand_chip *chip, unsigned char *buf, int stat; for (eccsize = chip->ecc.size; eccsize > 0; eccsize -= 256) { - stat = __nand_correct_data(buf, read_ecc, calc_ecc, 256, - false); + stat = rawnand_sw_hamming_correct(chip, buf, read_ecc, + calc_ecc); if (stat < 0) return stat; corrected += stat; diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index db430ae6a1a2..4d1ae25507ab 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c @@ -216,20 +216,19 @@ static void sm_break_offset(struct sm_ftl *ftl, loff_t loffset, static int sm_correct_sector(uint8_t *buffer, struct sm_oob *oob) { + bool sm_order = IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC); uint8_t ecc[3]; - __nand_calculate_ecc(buffer, SM_SMALL_PAGE, ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); - if (__nand_correct_data(buffer, ecc, oob->ecc1, SM_SMALL_PAGE, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)) < 0) + ecc_sw_hamming_calculate(buffer, SM_SMALL_PAGE, ecc, sm_order); + if (ecc_sw_hamming_correct(buffer, ecc, oob->ecc1, SM_SMALL_PAGE, + sm_order) < 0) return -EIO; buffer += SM_SMALL_PAGE; - __nand_calculate_ecc(buffer, SM_SMALL_PAGE, ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); - if (__nand_correct_data(buffer, ecc, oob->ecc2, SM_SMALL_PAGE, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)) < 0) + ecc_sw_hamming_calculate(buffer, SM_SMALL_PAGE, ecc, sm_order); + if (ecc_sw_hamming_correct(buffer, ecc, oob->ecc2, SM_SMALL_PAGE, + sm_order) < 0) return -EIO; return 0; } @@ -369,6 +368,7 @@ static int sm_write_block(struct sm_ftl *ftl, uint8_t *buf, int zone, int block, int lba, unsigned long invalid_bitmap) { + bool sm_order = IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC); struct sm_oob oob; int boffset; int retry = 0; @@ -395,13 +395,13 @@ restart: } if (ftl->smallpagenand) { - __nand_calculate_ecc(buf + boffset, SM_SMALL_PAGE, - oob.ecc1, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); + ecc_sw_hamming_calculate(buf + boffset, + SM_SMALL_PAGE, oob.ecc1, + sm_order); - __nand_calculate_ecc(buf + boffset + SM_SMALL_PAGE, - SM_SMALL_PAGE, oob.ecc2, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); + ecc_sw_hamming_calculate(buf + boffset + SM_SMALL_PAGE, + SM_SMALL_PAGE, oob.ecc2, + sm_order); } if (!sm_write_sector(ftl, zone, block, boffset, buf + boffset, &oob)) diff --git a/drivers/mtd/tests/mtd_nandecctest.c b/drivers/mtd/tests/mtd_nandecctest.c index e92e3fb287b6..c4f271314f52 100644 --- a/drivers/mtd/tests/mtd_nandecctest.c +++ b/drivers/mtd/tests/mtd_nandecctest.c @@ -119,13 +119,13 @@ static void no_bit_error(void *error_data, void *error_ecc, static int no_bit_error_verify(void *error_data, void *error_ecc, void *correct_data, const size_t size) { + bool sm_order = IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC); unsigned char calc_ecc[3]; int ret; - __nand_calculate_ecc(error_data, size, calc_ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); - ret = __nand_correct_data(error_data, error_ecc, calc_ecc, size, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); + ecc_sw_hamming_calculate(error_data, size, calc_ecc, sm_order); + ret = ecc_sw_hamming_correct(error_data, error_ecc, calc_ecc, size, + sm_order); if (ret == 0 && !memcmp(correct_data, error_data, size)) return 0; @@ -149,13 +149,13 @@ static void single_bit_error_in_ecc(void *error_data, void *error_ecc, static int single_bit_error_correct(void *error_data, void *error_ecc, void *correct_data, const size_t size) { + bool sm_order = IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC); unsigned char calc_ecc[3]; int ret; - __nand_calculate_ecc(error_data, size, calc_ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); - ret = __nand_correct_data(error_data, error_ecc, calc_ecc, size, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); + ecc_sw_hamming_calculate(error_data, size, calc_ecc, sm_order); + ret = ecc_sw_hamming_correct(error_data, error_ecc, calc_ecc, size, + sm_order); if (ret == 1 && !memcmp(correct_data, error_data, size)) return 0; @@ -186,13 +186,13 @@ static void double_bit_error_in_ecc(void *error_data, void *error_ecc, static int double_bit_error_detect(void *error_data, void *error_ecc, void *correct_data, const size_t size) { + bool sm_order = IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC); unsigned char calc_ecc[3]; int ret; - __nand_calculate_ecc(error_data, size, calc_ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); - ret = __nand_correct_data(error_data, error_ecc, calc_ecc, size, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); + ecc_sw_hamming_calculate(error_data, size, calc_ecc, sm_order); + ret = ecc_sw_hamming_correct(error_data, error_ecc, calc_ecc, size, + sm_order); return (ret == -EBADMSG) ? 0 : -EINVAL; } @@ -248,6 +248,7 @@ static void dump_data_ecc(void *error_data, void *error_ecc, void *correct_data, static int nand_ecc_test_run(const size_t size) { + bool sm_order = IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC); int i; int err = 0; void *error_data; @@ -266,9 +267,7 @@ static int nand_ecc_test_run(const size_t size) } prandom_bytes(correct_data, size); - __nand_calculate_ecc(correct_data, size, correct_ecc, - IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)); - + ecc_sw_hamming_calculate(correct_data, size, correct_ecc, sm_order); for (i = 0; i < ARRAY_SIZE(nand_ecc_test); i++) { nand_ecc_test[i].prepare(error_data, error_ecc, correct_data, correct_ecc, size); diff --git a/include/linux/mtd/nand-ecc-sw-hamming.h b/include/linux/mtd/nand-ecc-sw-hamming.h index 85e9a929b5f9..84a123bf45f3 100644 --- a/include/linux/mtd/nand-ecc-sw-hamming.h +++ b/include/linux/mtd/nand-ecc-sw-hamming.h @@ -10,30 +10,18 @@ #ifndef __MTD_NAND_ECC_SW_HAMMING_H__ #define __MTD_NAND_ECC_SW_HAMMING_H__ -struct nand_chip; +#include <linux/mtd/nand.h> -/* - * 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); +int ecc_sw_hamming_calculate(const unsigned char *buf, unsigned int step_size, + unsigned char *code, bool sm_order); +int nand_ecc_sw_hamming_calculate(struct nand_device *nand, + const unsigned char *buf, + unsigned char *code); +int ecc_sw_hamming_correct(unsigned char *buf, unsigned char *read_ecc, + unsigned char *calc_ecc, unsigned int step_size, + bool sm_order); +int nand_ecc_sw_hamming_correct(struct nand_device *nand, unsigned char *buf, + unsigned char *read_ecc, + unsigned char *calc_ecc); #endif /* __MTD_NAND_ECC_SW_HAMMING_H__ */ diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 15743c2c2cab..685d24557e95 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1301,6 +1301,13 @@ static inline int nand_opcode_8bits(unsigned int command) return 0; } +int rawnand_sw_hamming_calculate(struct nand_chip *chip, + const unsigned char *buf, + unsigned char *code); +int rawnand_sw_hamming_correct(struct nand_chip *chip, + unsigned char *buf, + unsigned char *read_ecc, + unsigned char *calc_ecc); int rawnand_sw_bch_init(struct nand_chip *chip); int rawnand_sw_bch_correct(struct nand_chip *chip, unsigned char *buf, unsigned char *read_ecc, unsigned char *calc_ecc); |