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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 *      inftl.h -- defines to support the Inverse NAND Flash Translation Layer
   4 *
   5 *      (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
   6 */
   7
   8#ifndef __MTD_INFTL_H__
   9#define __MTD_INFTL_H__
  10
  11#ifndef __KERNEL__
  12#error This is a kernel header. Perhaps include nftl-user.h instead?
  13#endif
  14
  15#include <linux/mtd/blktrans.h>
  16#include <linux/mtd/mtd.h>
  17#include <linux/mtd/nftl.h>
  18
  19#include <mtd/inftl-user.h>
  20
  21#ifndef INFTL_MAJOR
  22#define INFTL_MAJOR 96
  23#endif
  24#define INFTL_PARTN_BITS 4
  25
  26#ifdef __KERNEL__
  27
  28struct INFTLrecord {
  29        struct mtd_blktrans_dev mbd;
  30        __u16 MediaUnit;
  31        __u32 EraseSize;
  32        struct INFTLMediaHeader MediaHdr;
  33        int usecount;
  34        unsigned char heads;
  35        unsigned char sectors;
  36        unsigned short cylinders;
  37        __u16 numvunits;
  38        __u16 firstEUN;
  39        __u16 lastEUN;
  40        __u16 numfreeEUNs;
  41        __u16 LastFreeEUN;              /* To speed up finding a free EUN */
  42        int head,sect,cyl;
  43        __u16 *PUtable;                 /* Physical Unit Table */
  44        __u16 *VUtable;                 /* Virtual Unit Table */
  45        unsigned int nb_blocks;         /* number of physical blocks */
  46        unsigned int nb_boot_blocks;    /* number of blocks used by the bios */
  47        struct erase_info instr;
  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