hal/halx86/sysbus.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            ntoskrnl/hal/sysbus.c
   6  * PURPOSE:         System bus handler functions
   7  * PROGRAMMER:      Eric Kohl (ekohl@rz-online.de)
   8  * UPDATE HISTORY:
   9  *                  09/04/2000 Created
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <roscfg.h>
  15 #include <ddk/ntddk.h>
  16 #include <bus.h>
  17 #ifdef MP
  18 #include <mps.h>
  19 #endif
  20
  21
  22 /* FUNCTIONS ****************************************************************/
  23
  24 ULONG STDCALL
  25 HalpGetSystemInterruptVector(PVOID BusHandler,
  26                              ULONG BusNumber,
  27                              ULONG BusInterruptLevel,
  28                              ULONG BusInterruptVector,
  29                              PKIRQL Irql,
  30                              PKAFFINITY Affinity)
  31 {
  32 #ifdef MP
  33   *Irql = PROFILE_LEVEL - BusInterruptVector;
  34   *Affinity = 0xFFFFFFFF;
  35   return IRQ2VECTOR(BusInterruptVector);
  36 #else
  37   *Irql = PROFILE_LEVEL - BusInterruptVector;
  38   *Affinity = 0xFFFFFFFF;
  39   return BusInterruptVector;
  40 #endif
  41 }
  42
  43
  44 BOOLEAN STDCALL
  45 HalpTranslateSystemBusAddress(PBUS_HANDLER BusHandler,
  46                               ULONG BusNumber,
  47                               PHYSICAL_ADDRESS BusAddress,
  48                               PULONG AddressSpace,
  49                               PPHYSICAL_ADDRESS TranslatedAddress)
  50 {
  51    ULONG BaseAddress = 0;
  52
  53    if (*AddressSpace == 0)
  54      {
  55         /* memory space */
  56
  57      }
  58    else if (*AddressSpace == 1)
  59      {
  60         /* io space */
  61
  62      }
  63    else
  64      {
  65         /* other */
  66         return FALSE;
  67      }
  68
  69    TranslatedAddress->QuadPart = BusAddress.QuadPart + BaseAddress;
  70
  71    return TRUE;
  72 }
  73
  74 /* EOF */