1 /* 2 * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> 3 */ 4 5 #ifndef __MTD_NFTL_H__ 6 #define __MTD_NFTL_H__ 7 8 #include <linux/mtd/mtd.h> 9 #include <linux/mtd/blktrans.h> 10 11 #include <mtd/nftl-user.h> 12 13 /* these info are used in ReplUnitTable */ 14 #define BLOCK_NIL 0xffff /* last block of a chain */ 15 #define BLOCK_FREE 0xfffe /* free block */ 16 #define BLOCK_NOTEXPLORED 0xfffd /* non explored block, only used during mounting */ 17 #define BLOCK_RESERVED 0xfffc /* bios block or bad block */ 18 19 struct NFTLrecord { 20 struct mtd_blktrans_dev mbd; 21 __u16 MediaUnit, SpareMediaUnit; 22 __u32 EraseSize; 23 struct NFTLMediaHeader MediaHdr; 24 int usecount; 25 unsigned char heads; 26 unsigned char sectors; 27 unsigned short cylinders; 28 __u16 numvunits; 29 __u16 lastEUN; /* should be suppressed */ 30 __u16 numfreeEUNs; 31 __u16 LastFreeEUN; /* To speed up finding a free EUN */ 32 int head,sect,cyl; 33 __u16 *EUNtable; /* [numvunits]: First EUN for each virtual unit */ 34 __u16 *ReplUnitTable; /* [numEUNs]: ReplUnitNumber for each */ 35 unsigned int nb_blocks; /* number of physical blocks */ 36 unsigned int nb_boot_blocks; /* number of blocks used by the bios */ 37 struct erase_info instr; 38 struct nand_ecclayout oobinfo; 39 }; 40 41 int NFTL_mount(struct NFTLrecord *s); 42 int NFTL_formatblock(struct NFTLrecord *s, int block); 43 44 int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len, 45 size_t *retlen, uint8_t *buf); 46 int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len, 47 size_t *retlen, uint8_t *buf); 48 49 #ifndef NFTL_MAJOR 50 #define NFTL_MAJOR 93 51 #endif 52 53 #define MAX_NFTLS 16 54 #define MAX_SECTORS_PER_UNIT 64 55 #define NFTL_PARTN_BITS 4 56 57 #endif /* __MTD_NFTL_H__ */ 58