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| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2015-08-26 16:08:12 +0200 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2016-04-19 22:05:38 +0200 |
| commit | 9d02fc2a5129449581c3108c260e96377cf35f7e (patch) | |
| tree | e9ff3f1081bcfdf33f166857c9ba8c2387bb99a9 /include/linux/mtd/nand.h | |
| parent | 5abcd95d8c69008c72d54d7763e0ee2b5df84ac4 (diff) | |
| download | linux-exynos-9d02fc2a5129449581c3108c260e96377cf35f7e.tar.gz linux-exynos-9d02fc2a5129449581c3108c260e96377cf35f7e.tar.bz2 linux-exynos-9d02fc2a5129449581c3108c260e96377cf35f7e.zip | |
mtd: nand: export default read/write oob functions
Export the default read/write oob functions (for the standard and syndrome
scheme), so that drivers can use them for their raw implementation and
implement their own functions for the normal oob operation.
This is required if your ECC engine is capable of fixing some of the OOB
data. In this case you have to overload the ->read_oob() and ->write_oob(),
but if you don't specify the ->read/write_oob_raw() functions they are
assigned to the ->read/write_oob() implementation, which is not what you
want.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Diffstat (limited to 'include/linux/mtd/nand.h')
| -rw-r--r-- | include/linux/mtd/nand.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 1b673e19667c..7e06afb8552c 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -1078,4 +1078,18 @@ int nand_check_erased_ecc_chunk(void *data, int datalen, void *ecc, int ecclen, void *extraoob, int extraooblen, int threshold); + +/* Default write_oob implementation */ +int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip, int page); + +/* Default write_oob syndrome implementation */ +int nand_write_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip, + int page); + +/* Default read_oob implementation */ +int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip, int page); + +/* Default read_oob syndrome implementation */ +int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip, + int page); #endif /* __LINUX_MTD_NAND_H */ |