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[MTD] NAND Modularize read function

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Split the core of the read function out and implement
seperate handling functions for software and hardware
ECC.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2006-05-25 10:07:16 +02:00
committed by David Woodhouse
parent 9577f44a89
commit f5bbdacc41
4 changed files with 282 additions and 262 deletions
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16
include/linux/mtd/nand.h
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@ -479,14 +479,14 @@ struct nand_bbt_descr {
/* The maximum number of blocks to scan for a bbt */
#define NAND_BBT_SCAN_MAXBLOCKS 4
extern int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd);
extern int nand_update_bbt (struct mtd_info *mtd, loff_t offs);
extern int nand_default_bbt (struct mtd_info *mtd);
extern int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt);
extern int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbbt);
extern int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
size_t * retlen, uint8_t * buf, uint8_t * oob_buf,
struct nand_oobinfo *oobsel, int flags);
extern int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd);
extern int nand_update_bbt(struct mtd_info *mtd, loff_t offs);
extern int nand_default_bbt(struct mtd_info *mtd);
extern int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt);
extern int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
int allowbbt);
extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len,
size_t * retlen, uint8_t * buf);
/*
* Constants for oob configuration