1 /* 2 * $Id: nftl.h,v 1.16 2004/06/30 14:49:00 dbrown Exp $ 3 * 4 * (C) 1999-2003 David Woodhouse <dwmw2 (at) 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 21 struct 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 43 int NFTL_mount(struct NFTLrecord *s); 44 int 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
