reactos/hal/halx86/sysinfo.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS kernel
   4  * FILE:            ntoskrnl/hal/x86/sysinfo.c
   5  * PURPOSE:         Getting system information
   6  * PROGRAMMER:      David Welch (welch@mcmail.com)
   7  * UPDATE HISTORY:
   8  *                  Created 22/05/98
   9  */
  10
  11 /* INCLUDES *****************************************************************/
  12
  13 #include <ddk/ntddk.h>
  14 #include <hal.h>
  15 #include <bus.h>
  16
  17 #define NDEBUG
  18 #include <internal/debug.h>
  19
  20
  21 /* FUNCTIONS ****************************************************************/
  22
  23 NTSTATUS STDCALL
  24 HalpQuerySystemInformation(IN HAL_QUERY_INFORMATION_CLASS InformationClass,
  25                            IN ULONG BufferSize,
  26                            IN OUT PVOID Buffer,
  27                            OUT PULONG ReturnedLength)
  28 {
  29   ULONG DataLength;
  30   NTSTATUS Status;
  31
  32   DPRINT1("HalpQuerySystemInformation() called\n");
  33
  34   *ReturnedLength = 0;
  35
  36   DataLength = 0;
  37
  38   switch(InformationClass)
  39     {
  40 #if 0
  41       case HalInstalledBusInformation:
  42         Status = HalpQueryBusInformation(BufferSize,
  43                                          Buffer,
  44                                          ReturnedLength);
  45         break;
  46 #endif
  47
  48       default:
  49         DataLength = 0;
  50         Status = STATUS_INVALID_LEVEL;
  51         break;
  52     }
  53
  54   if (DataLength != 0)
  55     {
  56       if (DataLength > BufferSize)
  57         DataLength = BufferSize;
  58
  59 //      RtlCopyMemory();
  60
  61       *ReturnedLength = DataLength;
  62     }
  63
  64   return(Status);
  65 }
  66
  67
  68 #if 0
  69 NTSTATUS
  70 HalpSetSystemInformation(VOID)
  71 {
  72    UNIMPLEMENTED;
  73 }
  74 #endif
  75
  76 /* EOF */