LXR linux/include/linux/mtd/inftl.h

   1/*
   2 *      inftl.h -- defines to support the Inverse NAND Flash Translation Layer
   3 *
   4 *      (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
   5 */
   6
   7#ifndef __MTD_INFTL_H__
   8#define __MTD_INFTL_H__
   9
  10#ifndef __KERNEL__
  11#error This is a kernel header. Perhaps include nftl-user.h instead?
  12#endif
  13
  14#include <linux/mtd/blktrans.h>
  15#include <linux/mtd/mtd.h>
  16#include <linux/mtd/nftl.h>
  17
  18#include <mtd/inftl-user.h>
  19
  20#ifndef INFTL_MAJOR
  21#define INFTL_MAJOR 96
  22#endif
  23#define INFTL_PARTN_BITS 4
  24
  25#ifdef __KERNEL__
  26
  27struct INFTLrecord {
  28        struct mtd_blktrans_dev mbd;
  29        __u16 MediaUnit;
  30        __u32 EraseSize;
  31        struct INFTLMediaHeader MediaHdr;
  32        int usecount;
  33        unsigned char heads;
  34        unsigned char sectors;
  35        unsigned short cylinders;
  36        __u16 numvunits;
  37        __u16 firstEUN;
  38        __u16 lastEUN;
  39        __u16 numfreeEUNs;
  40        __u16 LastFreeEUN;              /* To speed up finding a free EUN */
  41        int head,sect,cyl;
  42        __u16 *PUtable;                 /* Physical Unit Table */
  43        __u16 *VUtable;                 /* Virtual Unit Table */
  44        unsigned int nb_blocks;         /* number of physical blocks */
  45        unsigned int nb_boot_blocks;    /* number of blocks used by the bios */
  46        struct erase_info instr;
  47        struct nand_ecclayout oobinfo;
  48};
  49
  50int INFTL_mount(struct INFTLrecord *s);
  51int INFTL_formatblock(struct INFTLrecord *s, int block);
  52
  53void INFTL_dumptables(struct INFTLrecord *s);
  54void INFTL_dumpVUchains(struct INFTLrecord *s);
  55
  56int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
  57                   size_t *retlen, uint8_t *buf);
  58int inftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
  59                    size_t *retlen, uint8_t *buf);
  60
  61#endif /* __KERNEL__ */
  62
  63#endif /* __MTD_INFTL_H__ */
  64