reactos/hal/halx86/generic/halinit.c

   1 /* $Id: halinit.c,v 1.1 2004/12/03 20:10:43 gvg Exp $
   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 <ddk/ntddk.h>
  15 #include <hal.h>
  16
  17 #define NDEBUG
  18 #include <internal/debug.h>
  19
  20 /* GLOBALS *****************************************************************/
  21
  22 PVOID HalpZeroPageMapping = NULL;
  23
  24 /* FUNCTIONS ***************************************************************/
  25
  26 NTSTATUS
  27 STDCALL
  28 DriverEntry(
  29     PDRIVER_OBJECT DriverObject,
  30     PUNICODE_STRING RegistryPath)
  31 {
  32         return STATUS_SUCCESS;
  33 }
  34
  35 BOOLEAN STDCALL
  36 HalInitSystem (ULONG BootPhase,
  37                PLOADER_PARAMETER_BLOCK LoaderBlock)
  38 {
  39   if (BootPhase == 0)
  40     {
  41       /* Initialize display and make the screen black */
  42       HalInitializeDisplay (LoaderBlock);
  43
  44       HalpInitPhase0();
  45     }
  46   else if (BootPhase == 1)
  47     {
  48       HalpInitBusHandlers();
  49       HalpInitDma();
  50
  51       /* Enumerate the devices on the motherboard */
  52       HalpStartEnumerator();
  53    }
  54   else if (BootPhase == 2)
  55     {
  56       /* Go to blue screen */
  57       HalClearDisplay (0x17); /* grey on blue */
  58
  59       HalpZeroPageMapping = MmMapIoSpace((LARGE_INTEGER)0LL, PAGE_SIZE, MmNonCached);
  60     }
  61
  62   return TRUE;
  63 }
  64
  65 /* EOF */