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423 | giacomo | 1 | /* |
2 | * $Id: ftl.h,v 1.1 2004-01-28 15:30:49 giacomo Exp $ |
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3 | * |
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4 | * Derived from (and probably identical to): |
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5 | * ftl.h 1.7 1999/10/25 20:23:17 |
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6 | * |
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7 | * The contents of this file are subject to the Mozilla Public License |
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8 | * Version 1.1 (the "License"); you may not use this file except in |
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9 | * compliance with the License. You may obtain a copy of the License |
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10 | * at http://www.mozilla.org/MPL/ |
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11 | * |
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12 | * Software distributed under the License is distributed on an "AS IS" |
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13 | * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See |
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14 | * the License for the specific language governing rights and |
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15 | * limitations under the License. |
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16 | * |
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17 | * The initial developer of the original code is David A. Hinds |
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18 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds |
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19 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. |
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20 | * |
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21 | * Alternatively, the contents of this file may be used under the |
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22 | * terms of the GNU General Public License version 2 (the "GPL"), in |
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23 | * which case the provisions of the GPL are applicable instead of the |
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24 | * above. If you wish to allow the use of your version of this file |
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25 | * only under the terms of the GPL and not to allow others to use |
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26 | * your version of this file under the MPL, indicate your decision by |
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27 | * deleting the provisions above and replace them with the notice and |
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28 | * other provisions required by the GPL. If you do not delete the |
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29 | * provisions above, a recipient may use your version of this file |
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30 | * under either the MPL or the GPL. |
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31 | */ |
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32 | |||
33 | #ifndef _LINUX_FTL_H |
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34 | #define _LINUX_FTL_H |
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35 | |||
36 | typedef struct erase_unit_header_t { |
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37 | u_int8_t LinkTargetTuple[5]; |
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38 | u_int8_t DataOrgTuple[10]; |
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39 | u_int8_t NumTransferUnits; |
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40 | u_int32_t EraseCount; |
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41 | u_int16_t LogicalEUN; |
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42 | u_int8_t BlockSize; |
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43 | u_int8_t EraseUnitSize; |
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44 | u_int16_t FirstPhysicalEUN; |
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45 | u_int16_t NumEraseUnits; |
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46 | u_int32_t FormattedSize; |
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47 | u_int32_t FirstVMAddress; |
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48 | u_int16_t NumVMPages; |
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49 | u_int8_t Flags; |
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50 | u_int8_t Code; |
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51 | u_int32_t SerialNumber; |
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52 | u_int32_t AltEUHOffset; |
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53 | u_int32_t BAMOffset; |
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54 | u_int8_t Reserved[12]; |
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55 | u_int8_t EndTuple[2]; |
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56 | } erase_unit_header_t; |
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57 | |||
58 | /* Flags in erase_unit_header_t */ |
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59 | #define HIDDEN_AREA 0x01 |
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60 | #define REVERSE_POLARITY 0x02 |
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61 | #define DOUBLE_BAI 0x04 |
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62 | |||
63 | /* Definitions for block allocation information */ |
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64 | |||
65 | #define BLOCK_FREE(b) ((b) == 0xffffffff) |
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66 | #define BLOCK_DELETED(b) (((b) == 0) || ((b) == 0xfffffffe)) |
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67 | |||
68 | #define BLOCK_TYPE(b) ((b) & 0x7f) |
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69 | #define BLOCK_ADDRESS(b) ((b) & ~0x7f) |
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70 | #define BLOCK_NUMBER(b) ((b) >> 9) |
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71 | #define BLOCK_CONTROL 0x30 |
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72 | #define BLOCK_DATA 0x40 |
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73 | #define BLOCK_REPLACEMENT 0x60 |
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74 | #define BLOCK_BAD 0x70 |
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75 | |||
76 | #endif /* _LINUX_FTL_H */ |