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1da177e4 LT |
1 | /* |
2 | * $Id: nftl.h,v 1.16 2004/06/30 14:49:00 dbrown Exp $ | |
3 | * | |
4 | * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> | |
5 | */ | |
6 | ||
7 | #ifndef __MTD_NFTL_H__ | |
8 | #define __MTD_NFTL_H__ | |
9 | ||
10 | #include <linux/mtd/mtd.h> | |
11 | #include <linux/mtd/blktrans.h> | |
12 | ||
13 | #include <mtd/nftl-user.h> | |
14 | ||
15 | /* these info are used in ReplUnitTable */ | |
16 | #define BLOCK_NIL 0xffff /* last block of a chain */ | |
17 | #define BLOCK_FREE 0xfffe /* free block */ | |
18 | #define BLOCK_NOTEXPLORED 0xfffd /* non explored block, only used during mounting */ | |
19 | #define BLOCK_RESERVED 0xfffc /* bios block or bad block */ | |
20 | ||
21 | struct NFTLrecord { | |
22 | struct mtd_blktrans_dev mbd; | |
23 | __u16 MediaUnit, SpareMediaUnit; | |
24 | __u32 EraseSize; | |
25 | struct NFTLMediaHeader MediaHdr; | |
26 | int usecount; | |
27 | unsigned char heads; | |
28 | unsigned char sectors; | |
29 | unsigned short cylinders; | |
30 | __u16 numvunits; | |
31 | __u16 lastEUN; /* should be suppressed */ | |
32 | __u16 numfreeEUNs; | |
33 | __u16 LastFreeEUN; /* To speed up finding a free EUN */ | |
34 | int head,sect,cyl; | |
35 | __u16 *EUNtable; /* [numvunits]: First EUN for each virtual unit */ | |
36 | __u16 *ReplUnitTable; /* [numEUNs]: ReplUnitNumber for each */ | |
37 | unsigned int nb_blocks; /* number of physical blocks */ | |
38 | unsigned int nb_boot_blocks; /* number of blocks used by the bios */ | |
39 | struct erase_info instr; | |
5bd34c09 | 40 | struct nand_ecclayout oobinfo; |
1da177e4 LT |
41 | }; |
42 | ||
43 | int NFTL_mount(struct NFTLrecord *s); | |
44 | int NFTL_formatblock(struct NFTLrecord *s, int block); | |
45 | ||
46 | #ifndef NFTL_MAJOR | |
47 | #define NFTL_MAJOR 93 | |
48 | #endif | |
49 | ||
50 | #define MAX_NFTLS 16 | |
51 | #define MAX_SECTORS_PER_UNIT 64 | |
52 | #define NFTL_PARTN_BITS 4 | |
53 | ||
54 | #endif /* __MTD_NFTL_H__ */ |