blob: 02cd5f9b79b875ed03e5b9042df1cf98eff60709 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * inftl.h -- defines to support the Inverse NAND Flash Translation Layer
3 *
4 * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 */
6
7#ifndef __MTD_INFTL_H__
8#define __MTD_INFTL_H__
9
10#ifndef __KERNEL__
11#error This is a kernel header. Perhaps include nftl-user.h instead?
12#endif
13
14#include <linux/mtd/blktrans.h>
15#include <linux/mtd/mtd.h>
16#include <linux/mtd/nftl.h>
17
18#include <mtd/inftl-user.h>
19
20#ifndef INFTL_MAJOR
Sean Youngbfabb982005-06-13 14:08:48 +010021#define INFTL_MAJOR 96
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#endif
23#define INFTL_PARTN_BITS 4
24
25#ifdef __KERNEL__
26
27struct INFTLrecord {
28 struct mtd_blktrans_dev mbd;
29 __u16 MediaUnit;
30 __u32 EraseSize;
31 struct INFTLMediaHeader MediaHdr;
32 int usecount;
33 unsigned char heads;
34 unsigned char sectors;
35 unsigned short cylinders;
36 __u16 numvunits;
37 __u16 firstEUN;
38 __u16 lastEUN;
39 __u16 numfreeEUNs;
Brian Norrisf4a2da02010-08-18 09:10:58 -070040 __u16 LastFreeEUN; /* To speed up finding a free EUN */
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 int head,sect,cyl;
Brian Norrisf4a2da02010-08-18 09:10:58 -070042 __u16 *PUtable; /* Physical Unit Table */
43 __u16 *VUtable; /* Virtual Unit Table */
44 unsigned int nb_blocks; /* number of physical blocks */
45 unsigned int nb_boot_blocks; /* number of blocks used by the bios */
46 struct erase_info instr;
47 struct nand_ecclayout oobinfo;
Linus Torvalds1da177e2005-04-16 15:20:36 -070048};
49
50int INFTL_mount(struct INFTLrecord *s);
51int INFTL_formatblock(struct INFTLrecord *s, int block);
52
Adrian Bunk0500abf2006-03-31 02:29:42 -080053void INFTL_dumptables(struct INFTLrecord *s);
54void INFTL_dumpVUchains(struct INFTLrecord *s);
55
Adrian Bunka8e8aa22008-04-14 17:19:58 +030056int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
57 size_t *retlen, uint8_t *buf);
58int inftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
59 size_t *retlen, uint8_t *buf);
60
Linus Torvalds1da177e2005-04-16 15:20:36 -070061#endif /* __KERNEL__ */
62
63#endif /* __MTD_INFTL_H__ */