rom/partition/getpartitiontableattrs.c

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