1/* 2 * Derived from (and probably identical to): 3 * ftl.h 1.7 1999/10/25 20:23:17 4 * 5 * The contents of this file are subject to the Mozilla Public License 6 * Version 1.1 (the "License"); you may not use this file except in 7 * compliance with the License. You may obtain a copy of the License 8 * at http://www.mozilla.org/MPL/ 9 * 10 * Software distributed under the License is distributed on an "AS IS" 11 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See 12 * the License for the specific language governing rights and 13 * limitations under the License. 14 * 15 * The initial developer of the original code is David A. Hinds 16 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds 17 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. 18 * 19 * Alternatively, the contents of this file may be used under the 20 * terms of the GNU General Public License version 2 (the "GPL"), in 21 * which case the provisions of the GPL are applicable instead of the 22 * above. If you wish to allow the use of your version of this file 23 * only under the terms of the GPL and not to allow others to use 24 * your version of this file under the MPL, indicate your decision by 25 * deleting the provisions above and replace them with the notice and 26 * other provisions required by the GPL. If you do not delete the 27 * provisions above, a recipient may use your version of this file 28 * under either the MPL or the GPL. 29 */ 30 31#ifndef _LINUX_FTL_H 32#define _LINUX_FTL_H 33 34typedef struct erase_unit_header_t { 35 uint8_t LinkTargetTuple[5]; 36 uint8_t DataOrgTuple[10]; 37 uint8_t NumTransferUnits; 38 uint32_t EraseCount; 39 uint16_t LogicalEUN; 40 uint8_t BlockSize; 41 uint8_t EraseUnitSize; 42 uint16_t FirstPhysicalEUN; 43 uint16_t NumEraseUnits; 44 uint32_t FormattedSize; 45 uint32_t FirstVMAddress; 46 uint16_t NumVMPages; 47 uint8_t Flags; 48 uint8_t Code; 49 uint32_t SerialNumber; 50 uint32_t AltEUHOffset; 51 uint32_t BAMOffset; 52 uint8_t Reserved[12]; 53 uint8_t EndTuple[2]; 54} erase_unit_header_t; 55 56/* Flags in erase_unit_header_t */ 57#define HIDDEN_AREA 0x01 58#define REVERSE_POLARITY 0x02 59#define DOUBLE_BAI 0x04 60 61/* Definitions for block allocation information */ 62 63#define BLOCK_FREE(b) ((b) == 0xffffffff) 64#define BLOCK_DELETED(b) (((b) == 0) || ((b) == 0xfffffffe)) 65 66#define BLOCK_TYPE(b) ((b) & 0x7f) 67#define BLOCK_ADDRESS(b) ((b) & ~0x7f) 68#define BLOCK_NUMBER(b) ((b) >> 9) 69#define BLOCK_CONTROL 0x30 70#define BLOCK_DATA 0x40 71#define BLOCK_REPLACEMENT 0x60 72#define BLOCK_BAD 0x70 73 74#endif /* _LINUX_FTL_H */ 75