rom/partition/partitionmbr.h

   1 #ifndef PARTITIONMBR_H
   2 #define PARTITIONMBR_H
   3
   4 /*
   5     Copyright © 2007-2012, The AROS Development Team. All rights reserved.
   6     $Id$
   7 */
   8
   9 #include <exec/types.h>
  10 #include <libraries/partition.h>
  11 #include <utility/tagitem.h>
  12
  13 #include "partition_intern.h"
  14
  15 struct PCPartitionTable {
  16    UBYTE status;
  17    UBYTE start_head;
  18    UBYTE start_sector;
  19    UBYTE start_cylinder;
  20    UBYTE type;
  21    UBYTE end_head;
  22    UBYTE end_sector;
  23    UBYTE end_cylinder;
  24    ULONG first_sector;
  25    ULONG count_sector;
  26 } __attribute__((packed));
  27
  28 struct MBR {
  29    BYTE boot_data[0x1BE];
  30    struct PCPartitionTable pcpt[4];
  31    UWORD magic;
  32 } __attribute__((packed));
  33
  34 #define MBR_MAGIC 0xAA55
  35 #define MBR_STATUS_VALID(status) ((!(status & 0x0F)) || (status & 0x80))
  36
  37 LONG MBRCheckPartitionTable(struct Library *PartitionBase, struct PartitionHandle *root, void *buffer);
  38 void PartitionMBRSetGeometry
  39     (
  40         struct PartitionHandle *root,
  41         struct PCPartitionTable *entry,
  42         ULONG sector,
  43         ULONG count,
  44         ULONG relative_sector
  45     );
  46 ULONG PartitionMBRDestroyPartitionTable(struct Library *PartitionBase,
  47     struct PartitionHandle *root);
  48
  49 #define MBR_MAX_PARTITIONS (4)
  50 #define MBRT_EXTENDED      (0x05)
  51 #define MBRT_EXTENDED2     (0x0f)
  52
  53
  54 #endif /* PARTITIONMBR_H */