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
  27 struct 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
  50 int INFTL_mount(struct INFTLrecord *s);
  51 int INFTL_formatblock(struct INFTLrecord *s, int block);
  52
  53 void INFTL_dumptables(struct INFTLrecord *s);
  54 void INFTL_dumpVUchains(struct INFTLrecord *s);
  55
  56 int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
  57                    size_t *retlen, uint8_t *buf);
  58 int 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__ */