nftl-user.h

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/*
 * Copyright © 1999-2010 David Woodhouse <[email protected]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifndef __MTD_NFTL_USER_H__
#define __MTD_NFTL_USER_H__

#include <linux/types.h>

/* Block Control Information */

struct nftl_bci {
    unsigned char ECCSig[6];
    __u8 Status;
    __u8 Status1;
}__attribute__((packed));

/* Unit Control Information */

struct nftl_uci0 {
    __u16 VirtUnitNum;
    __u16 ReplUnitNum;
    __u16 SpareVirtUnitNum;
    __u16 SpareReplUnitNum;
} __attribute__((packed));

struct nftl_uci1 {
    __u32 WearInfo;
    __u16 EraseMark;
    __u16 EraseMark1;
} __attribute__((packed));

struct nftl_uci2 {
        __u16 FoldMark;
        __u16 FoldMark1;
    __u32 unused;
} __attribute__((packed));

union nftl_uci {
    struct nftl_uci0 a;
    struct nftl_uci1 b;
    struct nftl_uci2 c;
};

struct nftl_oob {
    struct nftl_bci b;
    union nftl_uci u;
};

/* NFTL Media Header */

struct NFTLMediaHeader {
    char DataOrgID[6];
    __u16 NumEraseUnits;
    __u16 FirstPhysicalEUN;
    __u32 FormattedSize;
    unsigned char UnitSizeFactor;
} __attribute__((packed));

#define MAX_ERASE_ZONES (8192 - 512)

#define ERASE_MARK 0x3c69
#define SECTOR_FREE 0xff
#define SECTOR_USED 0x55
#define SECTOR_IGNORE 0x11
#define SECTOR_DELETED 0x00

#define FOLD_MARK_IN_PROGRESS 0x5555

#define ZONE_GOOD 0xff
#define ZONE_BAD_ORIGINAL 0
#define ZONE_BAD_MARKED 7


#endif /* __MTD_NFTL_USER_H__ */