isa.c

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/* $Id: isa.c 23907 2006-09-04 05:52:23Z arty $
 *
 * COPYRIGHT:       See COPYING in the top level directory
 * PROJECT:         ReactOS kernel
 * FILE:            ntoskrnl/hal/isa.c
 * PURPOSE:         Interfaces to the ISA bus
 * PROGRAMMER:      David Welch (welch@mcmail.com)
 * UPDATE HISTORY:
 *               05/06/98: Created
 */

/* INCLUDES ***************************************************************/

#include <hal.h>
#define NDEBUG
#include <debug.h>

/* FUNCTIONS *****************************************************************/

BOOLEAN HalIsaProbe(VOID)
/*
 * FUNCTION: Probes for an ISA bus
 * RETURNS: True if detected
 * NOTE: Since ISA is the default we are called last and always return
 * true
 */
{
   DbgPrint("Assuming ISA bus\n");

   /*
    * Probe for plug and play support
    */
   return(TRUE);
}


BOOLEAN NTAPI
HalpTranslateIsaBusAddress(PBUS_HANDLER BusHandler,
               ULONG BusNumber,
               PHYSICAL_ADDRESS BusAddress,
               PULONG AddressSpace,
               PPHYSICAL_ADDRESS TranslatedAddress)
{
   BOOLEAN Result;

   Result = HalTranslateBusAddress(PCIBus,
                   BusNumber,
                   BusAddress,
                   AddressSpace,
                   TranslatedAddress);
   if (Result != FALSE)
     return Result;

   Result = HalTranslateBusAddress(Internal,
                   BusNumber,
                   BusAddress,
                   AddressSpace,
                   TranslatedAddress);
   return Result;
}

ULONG NTAPI
HalpGetIsaInterruptVector(PVOID BusHandler,
              ULONG BusNumber,
              ULONG BusInterruptLevel,
              ULONG BusInterruptVector,
              PKIRQL Irql,
              PKAFFINITY Affinity)
{
  ULONG Vector = IRQ2VECTOR(BusInterruptVector);
  *Irql = VECTOR2IRQL(Vector);
  *Affinity = 0xFFFFFFFF;
  return Vector;
}
/* EOF */