rom/partition/partitionmbr.h

   1 #ifndef PARTITIONMBR_H
   2 #define PARTITIONMBR_H
   3
   4 /*
   5     Copyright © 2007-2011, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8 */
   9
  10 #include <exec/types.h>
  11 #include <libraries/partition.h>
  12 #include <utility/tagitem.h>
  13
  14 #include "partition_intern.h"
  15
  16 struct PCPartitionTable {
  17    UBYTE status;
  18    UBYTE start_head;
  19    UBYTE start_sector;
  20    UBYTE start_cylinder;
  21    UBYTE type;
  22    UBYTE end_head;
  23    UBYTE end_sector;
  24    UBYTE end_cylinder;
  25    ULONG first_sector;
  26    ULONG count_sector;
  27 } __attribute__((packed));
  28
  29 struct MBR {
  30    BYTE boot_data[0x1BE];
  31    struct PCPartitionTable pcpt[4];
  32    UWORD magic;
  33 } __attribute__((packed));
  34
  35 #define MBR_MAGIC 0xAA55
  36 #define MBR_STATUS_VALID(status) ((!(status & 0x0F)) || (status & 0x80))
  37
  38 LONG MBRCheckPartitionTable(struct Library *PartitionBase, struct PartitionHandle *root, void *buffer);
  39
  40 void PartitionMBRSetGeometry
  41     (
  42         struct PartitionHandle *root,
  43         struct PCPartitionTable *entry,
  44         ULONG sector,
  45         ULONG count,
  46         ULONG relative_sector
  47     );
  48
  49 #define MBR_MAX_PARTITIONS (4)
  50 #define MBRT_EXTENDED      (0x05)
  51 #define MBRT_EXTENDED2     (0x0f)
  52
  53
  54 #endif /* PARTITIONMBR_H */