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kernel/linux-imx6_3.14.28/include/linux/mtd/inftl.h 1.55 KB
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  /*
   *	inftl.h -- defines to support the Inverse NAND Flash Translation Layer
   *
   *	(C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
   */
  
  #ifndef __MTD_INFTL_H__
  #define __MTD_INFTL_H__
  
  #ifndef __KERNEL__
  #error This is a kernel header. Perhaps include nftl-user.h instead?
  #endif
  
  #include <linux/mtd/blktrans.h>
  #include <linux/mtd/mtd.h>
  #include <linux/mtd/nftl.h>
  
  #include <mtd/inftl-user.h>
  
  #ifndef INFTL_MAJOR
  #define INFTL_MAJOR 96
  #endif
  #define INFTL_PARTN_BITS 4
  
  #ifdef __KERNEL__
  
  struct INFTLrecord {
  	struct mtd_blktrans_dev mbd;
  	__u16 MediaUnit;
  	__u32 EraseSize;
  	struct INFTLMediaHeader MediaHdr;
  	int usecount;
  	unsigned char heads;
  	unsigned char sectors;
  	unsigned short cylinders;
  	__u16 numvunits;
  	__u16 firstEUN;
  	__u16 lastEUN;
  	__u16 numfreeEUNs;
  	__u16 LastFreeEUN;		/* To speed up finding a free EUN */
  	int head,sect,cyl;
  	__u16 *PUtable;			/* Physical Unit Table */
  	__u16 *VUtable;			/* Virtual Unit Table */
  	unsigned int nb_blocks;		/* number of physical blocks */
  	unsigned int nb_boot_blocks;	/* number of blocks used by the bios */
  	struct erase_info instr;
  	struct nand_ecclayout oobinfo;
  };
  
  int INFTL_mount(struct INFTLrecord *s);
  int INFTL_formatblock(struct INFTLrecord *s, int block);
  
  void INFTL_dumptables(struct INFTLrecord *s);
  void INFTL_dumpVUchains(struct INFTLrecord *s);
  
  int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
  		   size_t *retlen, uint8_t *buf);
  int inftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
  		    size_t *retlen, uint8_t *buf);
  
  #endif /* __KERNEL__ */
  
  #endif /* __MTD_INFTL_H__ */