NTSTATUS NTAPI PciIdeXAddDevice	(	IN PDRIVER_OBJECT	DriverObject,
		IN PDEVICE_OBJECT	Pdo
	)
Definition at line 103 of file fdo.c.
{
    PPCIIDEX_DRIVER_EXTENSION DriverExtension;
    PFDO_DEVICE_EXTENSION DeviceExtension;
    PDEVICE_OBJECT Fdo;
    ULONG BytesRead;
    PCI_COMMON_CONFIG PciConfig;
    NTSTATUS Status;

    DPRINT("PciIdeXAddDevice(%p %p)\n", DriverObject, Pdo);

    DriverExtension = IoGetDriverObjectExtension(DriverObject, DriverObject);
    ASSERT(DriverExtension);

    Status = IoCreateDevice(
        DriverObject,
        sizeof(FDO_DEVICE_EXTENSION) + DriverExtension->MiniControllerExtensionSize,
        NULL,
        FILE_DEVICE_BUS_EXTENDER,
        FILE_DEVICE_SECURE_OPEN,
        TRUE,
        &Fdo);
    if (!NT_SUCCESS(Status))
    {
        DPRINT("IoCreateDevice() failed with status 0x%08lx\n", Status);
        return Status;
    }

    DeviceExtension = (PFDO_DEVICE_EXTENSION)Fdo->DeviceExtension;
    RtlZeroMemory(DeviceExtension, sizeof(FDO_DEVICE_EXTENSION));

    DeviceExtension->Common.IsFDO = TRUE;

    Status = IoAttachDeviceToDeviceStackSafe(Fdo, Pdo, &DeviceExtension->LowerDevice);
    if (!NT_SUCCESS(Status))
    {
        DPRINT("IoAttachDeviceToDeviceStackSafe() failed with status 0x%08lx\n", Status);
        return Status;
    }

    Status = GetBusInterface(DeviceExtension);
    if (!NT_SUCCESS(Status))
    {
        DPRINT("GetBusInterface() failed with status 0x%08lx\n", Status);
        IoDetachDevice(DeviceExtension->LowerDevice);
        return Status;
    }

    BytesRead = (*DeviceExtension->BusInterface->GetBusData)(
        DeviceExtension->BusInterface->Context,
        PCI_WHICHSPACE_CONFIG,
        &PciConfig,
        0,
        PCI_COMMON_HDR_LENGTH);
    if (BytesRead != PCI_COMMON_HDR_LENGTH)
    {
        DPRINT("BusInterface->GetBusData() failed()\n");
        ReleaseBusInterface(DeviceExtension);
        IoDetachDevice(DeviceExtension->LowerDevice);
        return STATUS_IO_DEVICE_ERROR;
    }

    DeviceExtension->VendorId = PciConfig.VendorID;
    DeviceExtension->DeviceId = PciConfig.DeviceID;

    Fdo->Flags &= ~DO_DEVICE_INITIALIZING;

    return STATUS_SUCCESS;
}
ReactOS Development > Doxygen
