include/pcmcia/ftl.h

   1 /*
   2  * ftl.h 1.6 1999/08/28 04:12:33
   3  *
   4  * The contents of this file are subject to the Mozilla Public License
   5  * Version 1.1 (the "License"); you may not use this file except in
   6  * compliance with the License. You may obtain a copy of the License
   7  * at http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS"
  10  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  11  * the License for the specific language governing rights and
  12  * limitations under the License.
  13  *
  14  * The initial developer of the original code is David A. Hinds
  15  * <dhinds@hyper.stanford.edu>.  Portions created by David A. Hinds
  16  * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  17  *
  18  * Alternatively, the contents of this file may be used under the
  19  * terms of the GNU Public License version 2 (the "GPL"), in which
  20  * case the provisions of the GPL are applicable instead of the
  21  * above.  If you wish to allow the use of your version of this file
  22  * only under the terms of the GPL and not to allow others to use
  23  * your version of this file under the MPL, indicate your decision by
  24  * deleting the provisions above and replace them with the notice and
  25  * other provisions required by the GPL.  If you do not delete the
  26  * provisions above, a recipient may use your version of this file
  27  * under either the MPL or the GPL.
  28  */
  29
  30 #ifndef _LINUX_FTL_H
  31 #define _LINUX_FTL_H
  32
  33 typedef struct erase_unit_header_t {
  34     u_char      LinkTargetTuple[5];
  35     u_char      DataOrgTuple[10];
  36     u_char      NumTransferUnits;
  37     u_int       EraseCount;
  38     u_short     LogicalEUN;
  39     u_char      BlockSize;
  40     u_char      EraseUnitSize;
  41     u_short     FirstPhysicalEUN;
  42     u_short     NumEraseUnits;
  43     u_int       FormattedSize;
  44     u_int       FirstVMAddress;
  45     u_short     NumVMPages;
  46     u_char      Flags;
  47     u_char      Code;
  48     u_int       SerialNumber;
  49     u_int       AltEUHOffset;
  50     u_int       BAMOffset;
  51     u_char      Reserved[12];
  52     u_char      EndTuple[2];
  53 } erase_unit_header_t;
  54
  55 /* Flags in erase_unit_header_t */
  56 #define HIDDEN_AREA             0x01
  57 #define REVERSE_POLARITY        0x02
  58 #define DOUBLE_BAI              0x04
  59
  60 /* Definitions for block allocation information */
  61
  62 #define BLOCK_FREE(b)           ((b) == 0xffffffff)
  63 #define BLOCK_DELETED(b)        (((b) == 0) || ((b) == 0xfffffffe))
  64
  65 #define BLOCK_TYPE(b)           ((b) & 0x7f)
  66 #define BLOCK_ADDRESS(b)        ((b) & ~0x7f)
  67 #define BLOCK_NUMBER(b)         ((b) >> 9)
  68 #define BLOCK_CONTROL           0x30
  69 #define BLOCK_DATA              0x40
  70 #define BLOCK_REPLACEMENT       0x60
  71 #define BLOCK_BAD               0x70
  72
  73 #endif /* _LINUX_FTL_H */