busintrf.c File Reference

#include <pci.h>
#include <debug.h>

Include dependency graph for busintrf.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
VOID NTAPI	PciBusInterface_Reference (IN PVOID Context)
VOID NTAPI	PciBusInterface_Dereference (IN PVOID Context)
BOOLEAN NTAPI	PciBusInterface_TranslateBusAddress (IN PVOID Context, IN PHYSICAL_ADDRESS BusAddress, IN ULONG Length, IN OUT PULONG AddressSpace, OUT PPHYSICAL_ADDRESS TranslatedAddress)
PDMA_ADAPTER NTAPI	PciBusInterface_GetDmaAdapter (IN PVOID Context, IN PDEVICE_DESCRIPTION DeviceDescriptor, OUT PULONG NumberOfMapRegisters)
ULONG NTAPI	PciBusInterface_GetBusData (IN PVOID Context, IN ULONG WhichSpace, IN PVOID Buffer, IN ULONG Offset, IN ULONG Length)
ULONG NTAPI	PciBusInterface_SetBusData (IN PVOID Context, IN ULONG WhichSpace, IN PVOID Buffer, IN ULONG Offset, IN ULONG Length)
NTSTATUS NTAPI	busintrf_Initializer (IN PVOID Instance)
NTSTATUS NTAPI	busintrf_Constructor (IN PVOID DeviceExtension, IN PVOID Instance, IN PVOID InterfaceData, IN USHORT Version, IN USHORT Size, IN PINTERFACE Interface)

Variables
PCI_INTERFACE	BusHandlerInterface

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 13 of file busintrf.c.

Function Documentation

busintrf_Constructor()

NTSTATUS NTAPI busintrf_Constructor	(	IN PVOID	DeviceExtension,
		IN PVOID	Instance,
		IN PVOID	InterfaceData,
		IN USHORT	Version,
		IN USHORT	Size,
		IN PINTERFACE	Interface
	)

Definition at line 142 of file busintrf.c.

{
    PBUS_INTERFACE_STANDARD BusInterface;
    PPCI_PDO_EXTENSION PdoExtension;
 
    UNREFERENCED_PARAMETER(Instance);
    UNREFERENCED_PARAMETER(InterfaceData);
    UNREFERENCED_PARAMETER(Version);
    PAGED_CODE();
 
    if (Size < sizeof(BUS_INTERFACE_STANDARD))
    {
        return STATUS_UNSUCCESSFUL;
    }
 
    BusInterface = (PBUS_INTERFACE_STANDARD)Interface;
    PdoExtension = (PPCI_PDO_EXTENSION)DeviceExtension;
 
    BusInterface->Size = sizeof(*BusInterface);
    BusInterface->Version = 1;
    BusInterface->Context = PdoExtension;
    BusInterface->InterfaceReference = PciBusInterface_Reference;
    BusInterface->InterfaceDereference = PciBusInterface_Dereference;
 
    BusInterface->TranslateBusAddress = PciBusInterface_TranslateBusAddress;
    BusInterface->GetDmaAdapter = PciBusInterface_GetDmaAdapter;
    BusInterface->SetBusData = PciBusInterface_SetBusData;
    BusInterface->GetBusData = PciBusInterface_GetBusData;
 
    return STATUS_SUCCESS;
}

busintrf_Initializer()

NTSTATUS NTAPI busintrf_Initializer

(

IN PVOID

Instance

)

Definition at line 132 of file busintrf.c.

{
    UNREFERENCED_PARAMETER(Instance);
    /* PnP Interfaces don't get Initialized */
    ASSERTMSG("PCI busintrf_Initializer, unexpected call.\n", FALSE);
    return STATUS_UNSUCCESSFUL;
}

PciBusInterface_Dereference()

VOID NTAPI PciBusInterface_Dereference

(

IN PVOID

Context

)

Definition at line 44 of file busintrf.c.

{
    PPCI_PDO_EXTENSION PdoExtension = (PPCI_PDO_EXTENSION)Context;
 
    InterlockedDecrement(&PdoExtension->BusInterfaceReferenceCount);
}

Referenced by busintrf_Constructor().

PciBusInterface_GetBusData()

ULONG NTAPI PciBusInterface_GetBusData	(	IN PVOID	Context,
		IN ULONG	WhichSpace,
		IN PVOID	Buffer,
		IN ULONG	Offset,
		IN ULONG	Length
	)

Definition at line 92 of file busintrf.c.

{
    PPCI_PDO_EXTENSION PdoExtension = (PPCI_PDO_EXTENSION)Context;
 
    UNREFERENCED_PARAMETER(WhichSpace);
 
    return HalGetBusDataByOffset(PCIConfiguration,
                                 PdoExtension->ParentFdoExtension->BaseBus,
                                 PdoExtension->Slot.u.AsULONG,
                                 Buffer,
                                 Offset,
                                 Length);
}

Referenced by busintrf_Constructor().

PciBusInterface_GetDmaAdapter()

PDMA_ADAPTER NTAPI PciBusInterface_GetDmaAdapter	(	IN PVOID	Context,
		IN PDEVICE_DESCRIPTION	DeviceDescriptor,
		OUT PULONG	NumberOfMapRegisters
	)

Definition at line 73 of file busintrf.c.

{
    PPCI_PDO_EXTENSION PdoExtension = (PPCI_PDO_EXTENSION)Context;
    PPCI_FDO_EXTENSION FdoExtension = PdoExtension->ParentFdoExtension;
 
    if (DeviceDescriptor->InterfaceType == PCIBus)
    {
        DeviceDescriptor->BusNumber = FdoExtension->BaseBus;
    }
 
    return IoGetDmaAdapter(FdoExtension->PhysicalDeviceObject,
                           DeviceDescriptor,
                           NumberOfMapRegisters);
}

Referenced by busintrf_Constructor().

PciBusInterface_Reference()

VOID NTAPI PciBusInterface_Reference

(

IN PVOID

Context

)

Definition at line 35 of file busintrf.c.

{
    PPCI_PDO_EXTENSION PdoExtension = (PPCI_PDO_EXTENSION)Context;
 
    InterlockedIncrement(&PdoExtension->BusInterfaceReferenceCount);
}

Referenced by busintrf_Constructor().

PciBusInterface_SetBusData()

ULONG NTAPI PciBusInterface_SetBusData	(	IN PVOID	Context,
		IN ULONG	WhichSpace,
		IN PVOID	Buffer,
		IN ULONG	Offset,
		IN ULONG	Length
	)

Definition at line 112 of file busintrf.c.

{
    PPCI_PDO_EXTENSION PdoExtension = (PPCI_PDO_EXTENSION)Context;
 
    UNREFERENCED_PARAMETER(WhichSpace);
 
    return HalSetBusDataByOffset(PCIConfiguration,
                                 PdoExtension->ParentFdoExtension->BaseBus,
                                 PdoExtension->Slot.u.AsULONG,
                                 Buffer,
                                 Offset,
                                 Length);
}

Referenced by busintrf_Constructor().

PciBusInterface_TranslateBusAddress()

BOOLEAN NTAPI PciBusInterface_TranslateBusAddress	(	IN PVOID	Context,
		IN PHYSICAL_ADDRESS	BusAddress,
		IN ULONG	Length,
		IN OUT PULONG	AddressSpace,
		OUT PPHYSICAL_ADDRESS	TranslatedAddress
	)

Definition at line 53 of file busintrf.c.

{
    PPCI_PDO_EXTENSION PdoExtension = (PPCI_PDO_EXTENSION)Context;
    PPCI_FDO_EXTENSION FdoExtension = PdoExtension->ParentFdoExtension;
 
    UNREFERENCED_PARAMETER(Length);
 
    return HalTranslateBusAddress(PCIBus,
                                  FdoExtension->BaseBus,
                                  BusAddress,
                                  AddressSpace,
                                  TranslatedAddress);
}

Referenced by busintrf_Constructor().

Variable Documentation

BusHandlerInterface

PCI_INTERFACE BusHandlerInterface

Initial value:

=
{
    &GUID_BUS_INTERFACE_STANDARD,
    sizeof(BUS_INTERFACE_STANDARD),
    1,
    1,
    PCI_INTERFACE_PDO,
    0,
    PciInterface_BusHandler,
    busintrf_Constructor,
    busintrf_Initializer
}

Definition at line 18 of file busintrf.c.