reactos/hal/halx86/halinit.c

   1 /* $Id: halinit.c,v 1.5 2003/08/11 18:50:12 chorns 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 <roscfg.h>
  16 #include <hal.h>
  17
  18 #ifdef MP
  19 #include <mps.h>
  20 #endif /* MP */
  21
  22 #define NDEBUG
  23 #include <internal/debug.h>
  24
  25 /* FUNCTIONS ***************************************************************/
  26
  27 extern VOID
  28 HalClearDisplay (UCHAR CharAttribute);
  29
  30 NTSTATUS
  31 STDCALL
  32 DriverEntry(
  33     PDRIVER_OBJECT DriverObject,
  34     PUNICODE_STRING RegistryPath)
  35 {
  36         return STATUS_SUCCESS;
  37 }
  38
  39 BOOLEAN STDCALL
  40 HalInitSystem (ULONG BootPhase,
  41                PLOADER_PARAMETER_BLOCK LoaderBlock)
  42 {
  43   if (BootPhase == 0)
  44     {
  45       /* Initialize display and make the screen black */
  46       HalInitializeDisplay (LoaderBlock);
  47
  48 #ifdef MP
  49
  50       HalpInitMPS();
  51
  52 #else
  53
  54       HalpInitPICs();
  55
  56       /* Setup busy waiting */
  57       HalpCalibrateStallExecution();
  58
  59 #endif /* MP */
  60
  61     }
  62   else if (BootPhase == 1)
  63     {
  64       HalpInitBusHandlers();
  65       HalpCalibrateStallExecution();
  66
  67       /* Enumerate the devices on the motherboard */
  68       HalpStartEnumerator();
  69    }
  70   else if (BootPhase == 2)
  71     {
  72       /* Go to blue screen */
  73       HalClearDisplay (0x17); /* grey on blue */
  74     }
  75
  76   return TRUE;
  77 }
  78
  79 /* EOF */