From 9577f44a899cf4acb9e381c8946307b72153cd15 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 25 May 2006 10:04:31 +0200 Subject: [PATCH] [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 --- include/linux/mtd/nand.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 2fd85d5580..daacde5132 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); }; /** -- 2.39.5