1 /* 2 * $Id: ftl.h,v 1.6 2003/01/24 13:20:04 dwmw2 Exp $ 3 * 4 * Derived from (and probably identical to): 5 * ftl.h 1.7 1999/10/25 20:23:17 6 * 7 * The contents of this file are subject to the Mozilla Public License 8 * Version 1.1 (the "License"); you may not use this file except in 9 * compliance with the License. You may obtain a copy of the License 10 * at http://www.mozilla.org/MPL/ 11 * 12 * Software distributed under the License is distributed on an "AS IS" 13 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See 14 * the License for the specific language governing rights and 15 * limitations under the License. 16 * 17 * The initial developer of the original code is David A. Hinds 18 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds 19 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. 20 * 21 * Alternatively, the contents of this file may be used under the 22 * terms of the GNU General Public License version 2 (the "GPL"), in 23 * which case the provisions of the GPL are applicable instead of the 24 * above. If you wish to allow the use of your version of this file 25 * only under the terms of the GPL and not to allow others to use 26 * your version of this file under the MPL, indicate your decision by 27 * deleting the provisions above and replace them with the notice and 28 * other provisions required by the GPL. If you do not delete the 29 * provisions above, a recipient may use your version of this file 30 * under either the MPL or the GPL. 31 */ 32 33 #ifndef _LINUX_FTL_H 34 #define _LINUX_FTL_H 35 36 typedef struct erase_unit_header_t { 37 u_int8_t LinkTargetTuple[5]; 38 u_int8_t DataOrgTuple[10]; 39 u_int8_t NumTransferUnits; 40 u_int32_t EraseCount; 41 u_int16_t LogicalEUN; 42 u_int8_t BlockSize; 43 u_int8_t EraseUnitSize; 44 u_int16_t FirstPhysicalEUN; 45 u_int16_t NumEraseUnits; 46 u_int32_t FormattedSize; 47 u_int32_t FirstVMAddress; 48 u_int16_t NumVMPages; 49 u_int8_t Flags; 50 u_int8_t Code; 51 u_int32_t SerialNumber; 52 u_int32_t AltEUHOffset; 53 u_int32_t BAMOffset; 54 u_int8_t Reserved[12]; 55 u_int8_t EndTuple[2]; 56 } erase_unit_header_t; 57 58 /* Flags in erase_unit_header_t */ 59 #define HIDDEN_AREA 0x01 60 #define REVERSE_POLARITY 0x02 61 #define DOUBLE_BAI 0x04 62 63 /* Definitions for block allocation information */ 64 65 #define BLOCK_FREE(b) ((b) == 0xffffffff) 66 #define BLOCK_DELETED(b) (((b) == 0) || ((b) == 0xfffffffe)) 67 68 #define BLOCK_TYPE(b) ((b) & 0x7f) 69 #define BLOCK_ADDRESS(b) ((b) & ~0x7f) 70 #define BLOCK_NUMBER(b) ((b) >> 9) 71 #define BLOCK_CONTROL 0x30 72 #define BLOCK_DATA 0x40 73 #define BLOCK_REPLACEMENT 0x60 74 #define BLOCK_BAD 0x70 75 76 #endif /* _LINUX_FTL_H */ 77