| /* |
| * $Id: nftl.h,v 1.16 2004/06/30 14:49:00 dbrown Exp $ |
| * |
| * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> |
| */ |
| |
| #ifndef __MTD_NFTL_H__ |
| #define __MTD_NFTL_H__ |
| |
| #include <linux/mtd/mtd.h> |
| #include <linux/mtd/blktrans.h> |
| |
| #include <mtd/nftl-user.h> |
| |
| /* these info are used in ReplUnitTable */ |
| #define BLOCK_NIL 0xffff /* last block of a chain */ |
| #define BLOCK_FREE 0xfffe /* free block */ |
| #define BLOCK_NOTEXPLORED 0xfffd /* non explored block, only used during mounting */ |
| #define BLOCK_RESERVED 0xfffc /* bios block or bad block */ |
| |
| struct NFTLrecord { |
| struct mtd_blktrans_dev mbd; |
| __u16 MediaUnit, SpareMediaUnit; |
| __u32 EraseSize; |
| struct NFTLMediaHeader MediaHdr; |
| int usecount; |
| unsigned char heads; |
| unsigned char sectors; |
| unsigned short cylinders; |
| __u16 numvunits; |
| __u16 lastEUN; /* should be suppressed */ |
| __u16 numfreeEUNs; |
| __u16 LastFreeEUN; /* To speed up finding a free EUN */ |
| int head,sect,cyl; |
| __u16 *EUNtable; /* [numvunits]: First EUN for each virtual unit */ |
| __u16 *ReplUnitTable; /* [numEUNs]: ReplUnitNumber for each */ |
| unsigned int nb_blocks; /* number of physical blocks */ |
| unsigned int nb_boot_blocks; /* number of blocks used by the bios */ |
| struct erase_info instr; |
| struct nand_ecclayout oobinfo; |
| }; |
| |
| int NFTL_mount(struct NFTLrecord *s); |
| int NFTL_formatblock(struct NFTLrecord *s, int block); |
| |
| int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len, |
| size_t *retlen, uint8_t *buf); |
| int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len, |
| size_t *retlen, uint8_t *buf); |
| |
| #ifndef NFTL_MAJOR |
| #define NFTL_MAJOR 93 |
| #endif |
| |
| #define MAX_NFTLS 16 |
| #define MAX_SECTORS_PER_UNIT 64 |
| #define NFTL_PARTN_BITS 4 |
| |
| #endif /* __MTD_NFTL_H__ */ |