git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 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__ */ |