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 28 struct 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 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__ */ 64