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  *      $Id: inftl.h,v 1.7 2005/06/13 13:08:45 sean Exp $
   7  */
   8
   9 #ifndef __MTD_INFTL_H__
  10 #define __MTD_INFTL_H__
  11
  12 #ifndef __KERNEL__
  13 #error This is a kernel header. Perhaps include nftl-user.h instead?
  14 #endif
  15
  16 #include <linux/mtd/blktrans.h>
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/nftl.h>
  19
  20 #include <mtd/inftl-user.h>
  21
  22 #ifndef INFTL_MAJOR
  23 #define INFTL_MAJOR 96
  24 #endif
  25 #define INFTL_PARTN_BITS 4
  26
  27 #ifdef __KERNEL__
  28
  29 struct INFTLrecord {
  30         struct mtd_blktrans_dev mbd;
  31         __u16 MediaUnit;
  32         __u32 EraseSize;
  33         struct INFTLMediaHeader MediaHdr;
  34         int usecount;
  35         unsigned char heads;
  36         unsigned char sectors;
  37         unsigned short cylinders;
  38         __u16 numvunits;
  39         __u16 firstEUN;
  40         __u16 lastEUN;
  41         __u16 numfreeEUNs;
  42         __u16 LastFreeEUN;              /* To speed up finding a free EUN */
  43         int head,sect,cyl;
  44         __u16 *PUtable;                 /* Physical Unit Table  */
  45         __u16 *VUtable;                 /* Virtual Unit Table */
  46         unsigned int nb_blocks;         /* number of physical blocks */
  47         unsigned int nb_boot_blocks;    /* number of blocks used by the bios */
  48         struct erase_info instr;
  49         struct nand_ecclayout oobinfo;
  50 };
  51
  52 int INFTL_mount(struct INFTLrecord *s);
  53 int INFTL_formatblock(struct INFTLrecord *s, int block);
  54
  55 extern char inftlmountrev[];
  56
  57 void INFTL_dumptables(struct INFTLrecord *s);
  58 void INFTL_dumpVUchains(struct INFTLrecord *s);
  59
  60 int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
  61                    size_t *retlen, uint8_t *buf);
  62 int inftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
  63                     size_t *retlen, uint8_t *buf);
  64
  65 #endif /* __KERNEL__ */
  66
  67 #endif /* __MTD_INFTL_H__ */