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/*

 * $Id: nftl.h,v 1.16 2004/06/30 14:49:00 dbrown Exp $

 *

 * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org>

 */

#ifndef __MTD_NFTL_H__

#define __MTD_NFTL_H__

#include <linux/mtd/mtd.h>

#include <linux/mtd/blktrans.h>

#include <mtd/nftl-user.h>

/* these info are used in ReplUnitTable */

#define BLOCK_NIL          0xffff /* last block of a chain */

#define BLOCK_FREE         0xfffe /* free block */

#define BLOCK_NOTEXPLORED  0xfffd /* non explored block, only used during mounting */

#define BLOCK_RESERVED     0xfffc /* bios block or bad block */

struct NFTLrecord {

        struct mtd_blktrans_dev mbd;

        __u16 MediaUnit, SpareMediaUnit;

        __u32 EraseSize;

        struct NFTLMediaHeader MediaHdr;

        int usecount;

        unsigned char heads;

        unsigned char sectors;

        unsigned short cylinders;

        __u16 numvunits;

        __u16 lastEUN;                  /* should be suppressed */

        __u16 numfreeEUNs;

        __u16 LastFreeEUN;              /* To speed up finding a free EUN */

        int head,sect,cyl;

        __u16 *EUNtable;                /* [numvunits]: First EUN for each virtual unit  */

        __u16 *ReplUnitTable;           /* [numEUNs]: ReplUnitNumber for each */

        unsigned int nb_blocks;         /* number of physical blocks */

        unsigned int nb_boot_blocks;    /* number of blocks used by the bios */

        struct erase_info instr;

        struct nand_ecclayout oobinfo;

};

int NFTL_mount(struct NFTLrecord *s);

int NFTL_formatblock(struct NFTLrecord *s, int block);

#ifndef NFTL_MAJOR

#define NFTL_MAJOR 93

#endif

#define MAX_NFTLS 16

#define MAX_SECTORS_PER_UNIT 64

#define NFTL_PARTN_BITS 4

#endif /* __MTD_NFTL_H__ */