コード例 #1
0
ファイル: iorsrce.c プロジェクト: hoangduit/reactos
/*
 * @implemented
 */
NTSTATUS
NTAPI
IoAssignResources(IN PUNICODE_STRING RegistryPath,
                  IN PUNICODE_STRING DriverClassName,
                  IN PDRIVER_OBJECT DriverObject,
                  IN PDEVICE_OBJECT DeviceObject,
                  IN PIO_RESOURCE_REQUIREMENTS_LIST RequestedResources,
                  IN OUT PCM_RESOURCE_LIST* AllocatedResources)
{
    PDEVICE_NODE DeviceNode;

    /* Do we have a DO? */
    if (DeviceObject)
    {
        /* Get its device node */
        DeviceNode = IopGetDeviceNode(DeviceObject);
        if ((DeviceNode) && !(DeviceNode->Flags & DNF_LEGACY_RESOURCE_DEVICENODE))
        {
            /* New drivers should not call this API */
            KeBugCheckEx(PNP_DETECTED_FATAL_ERROR,
                         0,
                         0,
                         (ULONG_PTR)DeviceObject,
                         (ULONG_PTR)DriverObject);
        }
    }

    /* Did the driver supply resources? */
    if (RequestedResources)
    {
        /* Make sure there's actually something useful in them */
        if (!(RequestedResources->AlternativeLists) || !(RequestedResources->List[0].Count))
        {
            /* Empty resources are no resources */
            RequestedResources = NULL;
        }
    }

    /* Initialize output if given */
    if (AllocatedResources) *AllocatedResources = NULL;

    /* Call internal helper function */
    return IopLegacyResourceAllocation(ArbiterRequestLegacyAssigned,
                                       DriverObject,
                                       DeviceObject,
                                       RequestedResources,
                                       AllocatedResources);
}
コード例 #2
0
ファイル: device.c プロジェクト: mutoso-mirrors/reactos
VOID
NTAPI
IopDeleteDevice(IN PVOID ObjectBody)
{
    PDEVICE_OBJECT DeviceObject = ObjectBody;
    PDEVICE_NODE DeviceNode = IopGetDeviceNode(DeviceObject);
    PAGED_CODE();

    /* Cleanup and free the device node */
    if (DeviceNode)
        IopFreeDeviceNode(DeviceNode);

    /* Dereference the driver object, referenced in IoCreateDevice */
    if (DeviceObject->DriverObject)
        ObDereferenceObject(DeviceObject->DriverObject);
}
コード例 #3
0
ファイル: plugplay.c プロジェクト: RPG-7/reactos
static NTSTATUS
IopDeviceStatus(PPLUGPLAY_CONTROL_STATUS_DATA StatusData)
{
    PDEVICE_OBJECT DeviceObject;
    PDEVICE_NODE DeviceNode;
    ULONG Operation = 0;
    ULONG DeviceStatus = 0;
    ULONG DeviceProblem = 0;
    UNICODE_STRING DeviceInstance;
    NTSTATUS Status;

    DPRINT("IopDeviceStatus() called\n");

    Status = IopCaptureUnicodeString(&DeviceInstance, &StatusData->DeviceInstance);
    if (!NT_SUCCESS(Status))
    {
        return Status;
    }
    DPRINT("Device name: '%wZ'\n", &DeviceInstance);

    _SEH2_TRY
    {
        Operation = StatusData->Operation;
        if (Operation == PNP_SET_DEVICE_STATUS)
        {
            DeviceStatus = StatusData->DeviceStatus;
            DeviceProblem = StatusData->DeviceProblem;
        }
    }
    _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
    {
        ExFreePool(DeviceInstance.Buffer);
        _SEH2_YIELD(return _SEH2_GetExceptionCode());
    }
    _SEH2_END;

    /* Get the device object */
    DeviceObject = IopGetDeviceObjectFromDeviceInstance(&DeviceInstance);
    ExFreePool(DeviceInstance.Buffer);
    if (DeviceObject == NULL)
    {
        return STATUS_NO_SUCH_DEVICE;
    }

    DeviceNode = IopGetDeviceNode(DeviceObject);

    switch (Operation)
    {
        case PNP_GET_DEVICE_STATUS:
            DPRINT("Get status data\n");
            DeviceStatus = IopGetDeviceNodeStatus(DeviceNode);
            DeviceProblem = DeviceNode->Problem;
            break;

        case PNP_SET_DEVICE_STATUS:
            DPRINT1("Set status data is NOT SUPPORTED\n");
            break;

        case PNP_CLEAR_DEVICE_STATUS:
            DPRINT1("FIXME: Clear status data!\n");
            break;
    }

    ObDereferenceObject(DeviceObject);

    if (Operation == PNP_GET_DEVICE_STATUS)
    {
        _SEH2_TRY
        {
            StatusData->DeviceStatus = DeviceStatus;
            StatusData->DeviceProblem = DeviceProblem;
        }
        _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
        {
            Status = _SEH2_GetExceptionCode();
        }
        _SEH2_END;
    }