rom/bootloader/getbootinfo.c

   1 /*
   2     Copyright © 1995-2011, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     GetBootInfo() function.
   6 */
   7
   8 #include <aros/debug.h>
   9 #include <aros/bootloader.h>
  10
  11 #include "bootloader_intern.h"
  12
  13 /*****************************************************************************
  14
  15     NAME */
  16 #include <proto/bootloader.h>
  17
  18         AROS_LH1(APTR, GetBootInfo,
  19
  20 /*  SYNOPSIS */
  21         AROS_LHA(ULONG, infoType, D0),
  22
  23 /*  LOCATION */
  24         struct BootLoaderBase *, BootLoaderBase, 1, Bootloader)
  25
  26 /*  FUNCTION
  27         Return information from the bootloader
  28
  29     INPUTS
  30         infoType - The type of information requested. Valid types are:
  31           BL_Video      (struct VesaInfo*) - VESA video mode data
  32           BL_LoaderName (STRPTR)           - Name of bootloader
  33           BL_Args       (struct List *)    - Kernel arguments. Data item is struct Node.
  34                                              ln_Name points to argument text.
  35           BL_Drives     (struct List *)    - Legacy disk drives present in the system.
  36                                              Data item is struct DriveInfoNode.
  37
  38     RESULT
  39         Pointer to data or NULL if not supplied
  40
  41     NOTES
  42
  43     EXAMPLE
  44
  45     BUGS
  46
  47     SEE ALSO
  48
  49     INTERNALS
  50
  51 *****************************************************************************/
  52 {
  53     AROS_LIBFUNC_INIT
  54
  55     D(bug("[BootLdr] GetBootInfo(%u)\n", infoType));
  56     switch (infoType)
  57     {
  58         case BL_LoaderName:
  59             return BootLoaderBase->LdrName;
  60
  61         case BL_Args:
  62             if (BootLoaderBase->Flags & BL_FLAGS_CMDLINE)
  63                 return &(BootLoaderBase->Args);
  64             break;
  65
  66         case BL_Video:
  67             return BootLoaderBase->Vesa;
  68
  69         case BL_Drives:
  70             if (BootLoaderBase->Flags & BL_FLAGS_DRIVES)
  71                 return (APTR)&(BootLoaderBase->DriveInfo);
  72             break;
  73     }
  74
  75     D(bug("[BootLdr] GetBootInfo: Unknown info requested\n"));
  76     return NULL;
  77
  78     AROS_LIBFUNC_EXIT
  79 } /* GetBootInfo */