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1da177e4 | 1 | /* |
a1452a37 DW |
2 | * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org> |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
17 | * | |
1da177e4 LT |
18 | */ |
19 | ||
20 | #ifndef __MTD_NFTL_H__ | |
21 | #define __MTD_NFTL_H__ | |
22 | ||
23 | #include <linux/mtd/mtd.h> | |
24 | #include <linux/mtd/blktrans.h> | |
25 | ||
26 | #include <mtd/nftl-user.h> | |
27 | ||
28 | /* these info are used in ReplUnitTable */ | |
29 | #define BLOCK_NIL 0xffff /* last block of a chain */ | |
30 | #define BLOCK_FREE 0xfffe /* free block */ | |
31 | #define BLOCK_NOTEXPLORED 0xfffd /* non explored block, only used during mounting */ | |
32 | #define BLOCK_RESERVED 0xfffc /* bios block or bad block */ | |
33 | ||
34 | struct NFTLrecord { | |
35 | struct mtd_blktrans_dev mbd; | |
36 | __u16 MediaUnit, SpareMediaUnit; | |
37 | __u32 EraseSize; | |
38 | struct NFTLMediaHeader MediaHdr; | |
39 | int usecount; | |
40 | unsigned char heads; | |
41 | unsigned char sectors; | |
42 | unsigned short cylinders; | |
43 | __u16 numvunits; | |
44 | __u16 lastEUN; /* should be suppressed */ | |
45 | __u16 numfreeEUNs; | |
46 | __u16 LastFreeEUN; /* To speed up finding a free EUN */ | |
47 | int head,sect,cyl; | |
48 | __u16 *EUNtable; /* [numvunits]: First EUN for each virtual unit */ | |
49 | __u16 *ReplUnitTable; /* [numEUNs]: ReplUnitNumber for each */ | |
50 | unsigned int nb_blocks; /* number of physical blocks */ | |
51 | unsigned int nb_boot_blocks; /* number of blocks used by the bios */ | |
52 | struct erase_info instr; | |
5bd34c09 | 53 | struct nand_ecclayout oobinfo; |
1da177e4 LT |
54 | }; |
55 | ||
56 | int NFTL_mount(struct NFTLrecord *s); | |
57 | int NFTL_formatblock(struct NFTLrecord *s, int block); | |
58 | ||
51ee83df AB |
59 | int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len, |
60 | size_t *retlen, uint8_t *buf); | |
61 | int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len, | |
62 | size_t *retlen, uint8_t *buf); | |
63 | ||
1da177e4 LT |
64 | #ifndef NFTL_MAJOR |
65 | #define NFTL_MAJOR 93 | |
66 | #endif | |
67 | ||
68 | #define MAX_NFTLS 16 | |
69 | #define MAX_SECTORS_PER_UNIT 64 | |
70 | #define NFTL_PARTN_BITS 4 | |
71 | ||
72 | #endif /* __MTD_NFTL_H__ */ |