LXR linux/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
  28struct nftl_bci {
  29        unsigned char ECCSig[6];
  30        __u8 Status;
  31        __u8 Status1;
  32}__attribute__((packed));
  33
  34/* Unit Control Information */
  35
  36struct nftl_uci0 {
  37        __u16 VirtUnitNum;
  38        __u16 ReplUnitNum;
  39        __u16 SpareVirtUnitNum;
  40        __u16 SpareReplUnitNum;
  41} __attribute__((packed));
  42
  43struct nftl_uci1 {
  44        __u32 WearInfo;
  45        __u16 EraseMark;
  46        __u16 EraseMark1;
  47} __attribute__((packed));
  48
  49struct nftl_uci2 {
  50        __u16 FoldMark;
  51        __u16 FoldMark1;
  52        __u32 unused;
  53} __attribute__((packed));
  54
  55union nftl_uci {
  56        struct nftl_uci0 a;
  57        struct nftl_uci1 b;
  58        struct nftl_uci2 c;
  59};
  60
  61struct nftl_oob {
  62        struct nftl_bci b;
  63        union nftl_uci u;
  64};
  65
  66/* NFTL Media Header */
  67
  68struct 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__ */
  92