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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org>4 */5 6#ifndef __MTD_NFTL_H__7#define __MTD_NFTL_H__8 9#include <linux/mtd/mtd.h>10#include <linux/mtd/blktrans.h>11 12#include <mtd/nftl-user.h>13 14/* these info are used in ReplUnitTable */15#define BLOCK_NIL 0xffff /* last block of a chain */16#define BLOCK_FREE 0xfffe /* free block */17#define BLOCK_NOTEXPLORED 0xfffd /* non explored block, only used during mounting */18#define BLOCK_RESERVED 0xfffc /* bios block or bad block */19 20struct NFTLrecord {21 struct mtd_blktrans_dev mbd;22 __u16 MediaUnit, SpareMediaUnit;23 __u32 EraseSize;24 struct NFTLMediaHeader MediaHdr;25 int usecount;26 unsigned char heads;27 unsigned char sectors;28 unsigned short cylinders;29 __u16 numvunits;30 __u16 lastEUN; /* should be suppressed */31 __u16 numfreeEUNs;32 __u16 LastFreeEUN; /* To speed up finding a free EUN */33 int head,sect,cyl;34 __u16 *EUNtable; /* [numvunits]: First EUN for each virtual unit */35 __u16 *ReplUnitTable; /* [numEUNs]: ReplUnitNumber for each */36 unsigned int nb_blocks; /* number of physical blocks */37 unsigned int nb_boot_blocks; /* number of blocks used by the bios */38 struct erase_info instr;39};40 41int NFTL_mount(struct NFTLrecord *s);42int NFTL_formatblock(struct NFTLrecord *s, int block);43 44int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,45 size_t *retlen, uint8_t *buf);46int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,47 size_t *retlen, uint8_t *buf);48 49#ifndef NFTL_MAJOR50#define NFTL_MAJOR 9351#endif52 53#define MAX_NFTLS 1654#define MAX_SECTORS_PER_UNIT 6455#define NFTL_PARTN_BITS 456 57#endif /* __MTD_NFTL_H__ */58