Merge branch 'docs-next' of git://git.lwn.net/linux-2.6
[linux-2.6/next.git] / include / linux / mtd / nftl.h
blobdcaf611ed74826a5b2a018482e84b38449e08681
1 /*
2 * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org>
3 */
5 #ifndef __MTD_NFTL_H__
6 #define __MTD_NFTL_H__
8 #include <linux/mtd/mtd.h>
9 #include <linux/mtd/blktrans.h>
11 #include <mtd/nftl-user.h>
13 /* these info are used in ReplUnitTable */
14 #define BLOCK_NIL 0xffff /* last block of a chain */
15 #define BLOCK_FREE 0xfffe /* free block */
16 #define BLOCK_NOTEXPLORED 0xfffd /* non explored block, only used during mounting */
17 #define BLOCK_RESERVED 0xfffc /* bios block or bad block */
19 struct NFTLrecord {
20 struct mtd_blktrans_dev mbd;
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;
29 __u16 lastEUN; /* should be suppressed */
30 __u16 numfreeEUNs;
31 __u16 LastFreeEUN; /* To speed up finding a free EUN */
32 int head,sect,cyl;
33 __u16 *EUNtable; /* [numvunits]: First EUN for each virtual unit */
34 __u16 *ReplUnitTable; /* [numEUNs]: ReplUnitNumber for each */
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;
38 struct nand_ecclayout oobinfo;
41 int NFTL_mount(struct NFTLrecord *s);
42 int NFTL_formatblock(struct NFTLrecord *s, int block);
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);
49 #ifndef NFTL_MAJOR
50 #define NFTL_MAJOR 93
51 #endif
53 #define MAX_NFTLS 16
54 #define MAX_SECTORS_PER_UNIT 64
55 #define NFTL_PARTN_BITS 4
57 #endif /* __MTD_NFTL_H__ */