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

source code of linux/include/linux/mtd/inftl.h