148 lines
3.2 KiB
C
148 lines
3.2 KiB
C
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/*++
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Copyright (c) 1990-2000 Microsoft Corporation
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Module Name:
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translate.c
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Abstract:
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This is the ISA pnp IRQ translator.
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Author:
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Andy Thornton (andrewth) 7-June-97
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Environment:
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Kernel Mode Driver.
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Notes:
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This should only be temporary and will be replaced by a call into the HAL
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to retrieve its translators.
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Revision History:
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--*/
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#include "busp.h"
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#include "wdmguid.h"
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#include "halpnpp.h"
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//
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//Prototypes
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//
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NTSTATUS FindInterruptTranslator (PPI_BUS_EXTENSION BusExtension,PIRP Irp);
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGE,PiQueryInterface)
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#pragma alloc_text (PAGE,FindInterruptTranslator)
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#pragma alloc_text (PAGE,PipReleaseInterfaces)
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#pragma alloc_text (PAGE,PipRebuildInterfaces)
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#endif
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NTSTATUS
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PiQueryInterface (
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IN PPI_BUS_EXTENSION BusExtension,
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IN OUT PIRP Irp
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)
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{
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NTSTATUS status;
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PIO_STACK_LOCATION thisIrpSp;
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PAGED_CODE();
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thisIrpSp = IoGetCurrentIrpStackLocation( Irp );
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status = STATUS_NOT_SUPPORTED;
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//
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// Check if we are requesting a translator interface
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//
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if (RtlEqualMemory(&GUID_TRANSLATOR_INTERFACE_STANDARD,
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thisIrpSp->Parameters.QueryInterface.InterfaceType,
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sizeof(GUID))) {
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status = FindInterruptTranslator (BusExtension,Irp);
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if (NT_SUCCESS (status)) {
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//
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// Save away the hal interface, so we can unload it...
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//
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}
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}
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return status;
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}
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NTSTATUS
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FindInterruptTranslator (PPI_BUS_EXTENSION BusExtension,PIRP Irp)
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{
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NTSTATUS status;
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PIO_STACK_LOCATION thisIrpSp;
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PTRANSLATOR_INTERFACE translator;
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ULONG busNumber, length;
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INTERFACE_TYPE interfaceType;
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thisIrpSp = IoGetCurrentIrpStackLocation( Irp );
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status = STATUS_NOT_SUPPORTED;
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if ((UINT_PTR)(thisIrpSp->Parameters.QueryInterface.InterfaceSpecificData) ==
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CmResourceTypeInterrupt) {
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//
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// Retrieve the bus number and interface type for the bridge
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//
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status = IoGetDeviceProperty(BusExtension->PhysicalBusDevice,
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DevicePropertyLegacyBusType,
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sizeof(INTERFACE_TYPE),
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&interfaceType,
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&length
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);
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//ASSERT(NT_SUCCESS(status));
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status = IoGetDeviceProperty(BusExtension->PhysicalBusDevice,
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DevicePropertyBusNumber,
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sizeof(ULONG),
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&busNumber,
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&length
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);
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//ASSERT(NT_SUCCESS(status));
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status = HalGetInterruptTranslator(
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interfaceType,
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busNumber,
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Isa,
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thisIrpSp->Parameters.QueryInterface.Size,
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thisIrpSp->Parameters.QueryInterface.Version,
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(PTRANSLATOR_INTERFACE) thisIrpSp->Parameters.QueryInterface.Interface,
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&busNumber
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);
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}
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return status;
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}
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NTSTATUS
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PipReleaseInterfaces(PPI_BUS_EXTENSION PipBusExtension)
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{
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return STATUS_SUCCESS;
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}
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NTSTATUS
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PipRebuildInterfaces(PPI_BUS_EXTENSION PipBusExtension)
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{
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return STATUS_SUCCESS;
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}
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