rom/partition/getpartitiontableattrs.c

   1 /*
   2     Copyright © 1995-2017, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <proto/utility.h>
   7
   8 #include "partition_support.h"
   9 #include "platform.h"
  10 #include "debug.h"
  11
  12 /*****************************************************************************
  13
  14     NAME */
  15 #include <utility/tagitem.h>
  16 #include <libraries/partition.h>
  17
  18         AROS_LH2(LONG, GetPartitionTableAttrs,
  19
  20 /*  SYNOPSIS */
  21         AROS_LHA(struct PartitionHandle *, root, A1),
  22         AROS_LHA(const struct TagItem *, taglist, A2),
  23
  24 /*  LOCATION */
  25         struct Library *, PartitionBase, 13, Partition)
  26
  27 /*  FUNCTION
  28         Get attributes of a partition table.
  29
  30     INPUTS
  31         ph      - PartitionHandle of the partition table
  32         taglist - list of attributes; unknown tags are ignored
  33
  34     TAGS
  35         PTT_TYPE (ULONG *)
  36             Get partition table type
  37         PTT_MAXLEADIN (LONG *)
  38         PTT_RESERVED (ULONG *)
  39             Get number of reserved blocks
  40
  41     RESULT
  42
  43     NOTES
  44
  45     EXAMPLE
  46
  47     BUGS
  48
  49     SEE ALSO
  50
  51     INTERNALS
  52
  53 *****************************************************************************/
  54 {
  55     AROS_LIBFUNC_INIT
  56
  57     if (root->table)
  58     {
  59         struct PTFunctionTable *handler = root->table->handler;
  60         struct TagItem *tag;
  61
  62         while ((tag = NextTagItem((struct TagItem **)&taglist)))
  63         {
  64             LONG sup;
  65
  66             if (handler->getPartitionTableAttr)
  67                 sup = handler->getPartitionTableAttr(PartitionBase, root, tag);
  68             else
  69                 sup = 0;
  70
  71             if (!sup)
  72             {
  73                 switch (tag->ti_Tag)
  74                 {
  75                 case PTT_TYPE:
  76                     *((LONG *)tag->ti_Data) = root->table->type;
  77                     break;
  78
  79                 case PTT_MAXLEADIN:
  80                 case PTT_RESERVED:
  81                 case PTT_MAX_PARTITIONS:
  82                     *((LONG *)tag->ti_Data) = 0;
  83                     break;
  84                 }
  85             }
  86         }
  87
  88         return 1;
  89     }
  90
  91     /* There's no partition table here */
  92     return 0;
  93
  94     AROS_LIBFUNC_EXIT
  95 }