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| author | Thomas Gleixner <tglx@cruncher.tec.linutronix.de> | 2006-05-25 10:04:31 +0200 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2006-05-25 12:45:27 +0100 |
| commit | 9577f44a899cf4acb9e381c8946307b72153cd15 (patch) | |
| tree | 0e3ef3fd6a094da30584c8fc06483f0fff3cda4f /include/linux/mtd | |
| parent | 7fac464868ec5d80019fa549b8b4516dd1dc9d5c (diff) | |
| download | linux-stable-9577f44a899cf4acb9e381c8946307b72153cd15.tar.gz linux-stable-9577f44a899cf4acb9e381c8946307b72153cd15.tar.bz2 linux-stable-9577f44a899cf4acb9e381c8946307b72153cd15.zip | |
[MTD] NAND Add read/write function pointers to struct nand_ecc_ctrl
Add read/write function pointers to struct nand_ecc_ctrl to
prepare the modulaization of nand_read/write functions. The
current implementation handles every type of ecc mode
software/hardware and all kinds of strange ecc placement
schemes in one switch/if construct. Thats too complex to
maintain and too inflexible to expand. Modularization will
also shorten the code pathes of the read/write functions.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/nand.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 2fd85d55803d..daacde5132fe 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -233,16 +233,23 @@ struct nand_hw_control { * @steps: number of ecc steps per page * @size: data bytes per ecc step * @bytes: ecc bytes per step + * @total: total number of ecc bytes per page + * @prepad: padding information for syndrome based ecc generators + * @postpad: padding information for syndrome based ecc generators * @hwctl: function to control hardware ecc generator. Must only * be provided if an hardware ECC is available * @calculate: function for ecc calculation or readback from ecc hardware * @correct: function for ecc correction, matching to ecc generator (sw/hw) + * @write_page: function to write a page according to the ecc generator requirements */ struct nand_ecc_ctrl { nand_ecc_modes_t mode; int steps; int size; int bytes; + int total; + int prepad; + int postpad; void (*hwctl)(struct mtd_info *mtd, int mode); int (*calculate)(struct mtd_info *mtd, const uint8_t *dat, @@ -250,6 +257,12 @@ struct nand_ecc_ctrl { int (*correct)(struct mtd_info *mtd, uint8_t *dat, uint8_t *read_ecc, uint8_t *calc_ecc); + int (*read_page)(struct mtd_info *mtd, + struct nand_chip *chip, + uint8_t *buf); + int (*write_page)(struct mtd_info *mtd, + struct nand_chip *chip, + uint8_t *buf, int cached); }; /** |