projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| cfa460ad | 1 | /* |
| cfa460ad WJ |
2 | * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> |
| 3 | */ | |
| a1e329b4 WD |
4 | |
| 5 | #ifndef __MTD_NFTL_H__ | |
| 6 | #define __MTD_NFTL_H__ | |
| 7 | ||
| cfa460ad WJ |
8 | #include <linux/mtd/mtd.h> |
| 9 | #include <linux/mtd/blktrans.h> | |
| a1e329b4 | 10 | |
| cfa460ad | 11 | #include <linux/mtd/nftl-user.h> |
| a1e329b4 WD |
12 | |
| 13 | /* these info are used in ReplUnitTable */ | |
| 4b070809 WD |
14 | #define BLOCK_NIL 0xffff /* last block of a chain */ |
| 15 | #define BLOCK_FREE 0xfffe /* free block */ | |
| a1e329b4 | 16 | #define BLOCK_NOTEXPLORED 0xfffd /* non explored block, only used during mounting */ |
| 4b070809 | 17 | #define BLOCK_RESERVED 0xfffc /* bios block or bad block */ |
| a1e329b4 WD |
18 | |
| 19 | struct NFTLrecord { | |
| cfa460ad | 20 | struct mtd_blktrans_dev mbd; |
| a1e329b4 WD |
21 | __u16 MediaUnit, SpareMediaUnit; |
| 22 | __u32 EraseSize; | |
| 23 | struct NFTLMediaHeader MediaHdr; | |
| 24 | int usecount; | |
| 25 | unsigned char heads; | |
| 26 | unsigned char sectors; | |
| 27 | unsigned short cylinders; | |
| 28 | __u16 numvunits; | |
| 4b070809 | 29 | __u16 lastEUN; /* should be suppressed */ |
| a1e329b4 | 30 | __u16 numfreeEUNs; |
| 53677ef1 | 31 | __u16 LastFreeEUN; /* To speed up finding a free EUN */ |
| a1e329b4 | 32 | int head,sect,cyl; |
| 53677ef1 WD |
33 | __u16 *EUNtable; /* [numvunits]: First EUN for each virtual unit */ |
| 34 | __u16 *ReplUnitTable; /* [numEUNs]: ReplUnitNumber for each */ | |
| 4b070809 WD |
35 | unsigned int nb_blocks; /* number of physical blocks */ |
| 36 | unsigned int nb_boot_blocks; /* number of blocks used by the bios */ | |
| 37 | struct erase_info instr; | |
| cfa460ad | 38 | struct nand_ecclayout oobinfo; |
| a1e329b4 WD |
39 | }; |
| 40 | ||
| cfa460ad WJ |
41 | int NFTL_mount(struct NFTLrecord *s); |
| 42 | int NFTL_formatblock(struct NFTLrecord *s, int block); | |
| 43 | ||
| c45912d8 SW |
44 | int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len, |
| 45 | size_t *retlen, uint8_t *buf); | |
| 46 | int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len, | |
| 47 | size_t *retlen, uint8_t *buf); | |
| 48 | ||
| cfa460ad WJ |
49 | #ifndef NFTL_MAJOR |
| 50 | #define NFTL_MAJOR 93 | |
| 51 | #endif | |
| 52 | ||
| a1e329b4 | 53 | #define MAX_NFTLS 16 |
| cfa460ad | 54 | #define MAX_SECTORS_PER_UNIT 64 |
| a1e329b4 WD |
55 | #define NFTL_PARTN_BITS 4 |
| 56 | ||
| 57 | #endif /* __MTD_NFTL_H__ */ |