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
21struct 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;
40	struct nand_ecclayout oobinfo;
41};
42
43int NFTL_mount(struct NFTLrecord *s);
44int 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__ */
55