63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
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/*
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* ftl.h 1.5 1999/07/20 16:07:58
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License
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* at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and
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* limitations under the License.
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*
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* The initial developer of the original code is David A. Hinds
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* <dhinds@hyper.stanford.edu>. Portions created by David A. Hinds
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* are Copyright (C) 1998 David A. Hinds. All Rights Reserved.
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*/
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#ifndef _LINUX_FTL_H
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#define _LINUX_FTL_H
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typedef struct erase_unit_header_t {
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u_char LinkTargetTuple[5];
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u_char DataOrgTuple[10];
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u_char NumTransferUnits;
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u_int EraseCount;
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u_short LogicalEUN;
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u_char BlockSize;
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u_char EraseUnitSize;
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u_short FirstPhysicalEUN;
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u_short NumEraseUnits;
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u_int FormattedSize;
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u_int FirstVMAddress;
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u_short NumVMPages;
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u_char Flags;
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u_char Code;
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u_int SerialNumber;
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u_int AltEUHOffset;
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u_int BAMOffset;
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u_char Reserved[12];
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u_char EndTuple[2];
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} erase_unit_header_t;
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/* Flags in erase_unit_header_t */
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#define HIDDEN_AREA 0x01
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#define REVERSE_POLARITY 0x02
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#define DOUBLE_BAI 0x04
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/* Definitions for block allocation information */
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#define BLOCK_FREE(b) ((b) == 0xffffffff)
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#define BLOCK_DELETED(b) (((b) == 0) || ((b) == 0xfffffffe))
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#define BLOCK_TYPE(b) ((b) & 0x7f)
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#define BLOCK_ADDRESS(b) ((b) & ~0x7f)
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#define BLOCK_NUMBER(b) ((b) >> 9)
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#define BLOCK_CONTROL 0x30
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#define BLOCK_DATA 0x40
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#define BLOCK_REPLACEMENT 0x60
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#define BLOCK_BAD 0x70
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#endif /* _LINUX_FTL_H */
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