include/uapi/mtd/nftl-user.h

   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__ */