reactos/hal/halppc/generic/isa.c
2013-06-16 22:01:41 +00:00

75 lines
1.6 KiB
C

/*
* 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 */