reactos/hal/halx86/generic/halinit.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:     See COPYING in the top level directory
   4  * PROJECT:       ReactOS kernel
   5  * FILE:          ntoskrnl/hal/x86/halinit.c
   6  * PURPOSE:       Initalize the x86 hal
   7  * PROGRAMMER:    David Welch (welch@cwcom.net)
   8  * UPDATE HISTORY:
   9  *              11/06/98: Created
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <hal.h>
  15 #define NDEBUG
  16 #include <debug.h>
  17
  18 /* GLOBALS *****************************************************************/
  19
  20 PVOID HalpZeroPageMapping = NULL;
  21 HALP_HOOKS HalpHooks;
  22
  23 /* FUNCTIONS ***************************************************************/
  24
  25 NTSTATUS
  26 STDCALL
  27 DriverEntry(
  28     PDRIVER_OBJECT DriverObject,
  29     PUNICODE_STRING RegistryPath)
  30 {
  31         return STATUS_SUCCESS;
  32 }
  33
  34 BOOLEAN STDCALL
  35 HalInitSystem (ULONG BootPhase,
  36                PLOADER_PARAMETER_BLOCK LoaderBlock)
  37 {
  38   if (BootPhase == 0)
  39     {
  40       RtlZeroMemory(&HalpHooks, sizeof(HALP_HOOKS));
  41       HalpInitPhase0(LoaderBlock);
  42     }
  43   else if (BootPhase == 1)
  44     {
  45       /* Initialize display and make the screen black */
  46       HalInitializeDisplay (LoaderBlock);
  47       HalpInitBusHandlers();
  48       HalpInitDma();
  49
  50       /* Enumerate the devices on the motherboard */
  51       HalpStartEnumerator();
  52    }
  53   else if (BootPhase == 2)
  54     {
  55       /* Go to blue screen */
  56
  57       HalpZeroPageMapping = MmMapIoSpace((LARGE_INTEGER)0LL, PAGE_SIZE, MmNonCached);
  58     }
  59
  60   return TRUE;
  61 }
  62
  63 /* EOF */