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 | |