1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2 /*
3 * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 *
19 */
20
21 #ifndef __MTD_NFTL_USER_H__
22 #define __MTD_NFTL_USER_H__
23
24 #include <linux/types.h>
25
26 /* Block Control Information */
27
28 struct nftl_bci {
29 unsigned char ECCSig[6];
30 __u8 Status;
31 __u8 Status1;
32 }__attribute__((packed));
33
34 /* Unit Control Information */
35
36 struct nftl_uci0 {
37 __u16 VirtUnitNum;
38 __u16 ReplUnitNum;
39 __u16 SpareVirtUnitNum;
40 __u16 SpareReplUnitNum;
41 } __attribute__((packed));
42
43 struct nftl_uci1 {
44 __u32 WearInfo;
45 __u16 EraseMark;
46 __u16 EraseMark1;
47 } __attribute__((packed));
48
49 struct nftl_uci2 {
50 __u16 FoldMark;
51 __u16 FoldMark1;
52 __u32 unused;
53 } __attribute__((packed));
54
55 union nftl_uci {
56 struct nftl_uci0 a;
57 struct nftl_uci1 b;
58 struct nftl_uci2 c;
59 };
60
61 struct nftl_oob {
62 struct nftl_bci b;
63 union nftl_uci u;
64 };
65
66 /* NFTL Media Header */
67
68 struct NFTLMediaHeader {
69 char DataOrgID[6];
70 __u16 NumEraseUnits;
71 __u16 FirstPhysicalEUN;
72 __u32 FormattedSize;
73 unsigned char UnitSizeFactor;
74 } __attribute__((packed));
75
76 #define MAX_ERASE_ZONES (8192 - 512)
77
78 #define ERASE_MARK 0x3c69
79 #define SECTOR_FREE 0xff
80 #define SECTOR_USED 0x55
81 #define SECTOR_IGNORE 0x11
82 #define SECTOR_DELETED 0x00
83
84 #define FOLD_MARK_IN_PROGRESS 0x5555
85
86 #define ZONE_GOOD 0xff
87 #define ZONE_BAD_ORIGINAL 0
88 #define ZONE_BAD_MARKED 7
89
90
91 #endif /* __MTD_NFTL_USER_H__ */