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