C++ (Cpp) VIOSerialDisableInterruptQueue示例

示例#1

文件： Port.c 项目： koizumimizuki/kvm-guest-drivers-windows

NTSTATUS
VIOSerialPortEvtDeviceD0Exit(
    IN  WDFDEVICE Device,
    IN  WDF_POWER_DEVICE_STATE TargetState
    )
{
    PVIOSERIAL_PORT Port = RawPdoSerialPortGetData(Device)->port;
    PPORT_BUFFER buf;
    PSINGLE_LIST_ENTRY iter;

    UNREFERENCED_PARAMETER(TargetState);

    TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "--> %s\n", __FUNCTION__);

    WdfIoQueuePurge(Port->ReadQueue, WDF_NO_EVENT_CALLBACK, WDF_NO_CONTEXT);
    WdfIoQueuePurge(Port->WriteQueue, WDF_NO_EVENT_CALLBACK, WDF_NO_CONTEXT);
    WdfIoQueuePurge(Port->IoctlQueue, WDF_NO_EVENT_CALLBACK, WDF_NO_CONTEXT);

    VIOSerialDisableInterruptQueue(GetInQueue(Port));

    WdfSpinLockAcquire(Port->InBufLock);
    VIOSerialDiscardPortDataLocked(Port);
    Port->InBuf = NULL;
    WdfSpinLockRelease(Port->InBufLock);

    WdfSpinLockAcquire(Port->OutVqLock);
    VIOSerialReclaimConsumedBuffers(Port);
    WdfSpinLockRelease(Port->OutVqLock);

    while (buf = (PPORT_BUFFER)VirtIODeviceDetachUnusedBuf(GetInQueue(Port)))
    {
        VIOSerialFreeBuffer(buf);
    }

    iter = PopEntryList(&Port->WriteBuffersList);
    while (iter != NULL)
    {
        PWRITE_BUFFER_ENTRY entry = CONTAINING_RECORD(iter,
            WRITE_BUFFER_ENTRY, ListEntry);

        ExFreePoolWithTag(entry->Buffer, VIOSERIAL_DRIVER_MEMORY_TAG);
        ExFreePoolWithTag(entry, VIOSERIAL_DRIVER_MEMORY_TAG);

        iter = PopEntryList(&Port->WriteBuffersList);
    };

    TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "<-- %s\n", __FUNCTION__);

    return STATUS_SUCCESS;
}

示例#2

文件： Port.c 项目： beckdong/kvm-guest-drivers-windows

NTSTATUS
VIOSerialPortEvtDeviceD0Exit(
    IN  WDFDEVICE Device,
    IN  WDF_POWER_DEVICE_STATE TargetState
    )
{
    PVIOSERIAL_PORT Port = RawPdoSerialPortGetData(Device)->port;
    PPORT_BUFFER buf;
    PSINGLE_LIST_ENTRY iter;

    TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "--> %s TargetState: %d\n",
        __FUNCTION__, TargetState);

    Port->Removed = TRUE;

    VIOSerialDisableInterruptQueue(GetInQueue(Port));

    WdfSpinLockAcquire(Port->InBufLock);
    VIOSerialDiscardPortDataLocked(Port);
    Port->InBuf = NULL;
    WdfSpinLockRelease(Port->InBufLock);

    VIOSerialReclaimConsumedBuffers(Port);

    while (buf = (PPORT_BUFFER)virtqueue_detach_unused_buf(GetInQueue(Port)))
    {
        VIOSerialFreeBuffer(buf);
    }

    iter = PopEntryList(&Port->WriteBuffersList);
    while (iter != NULL)
    {
        PWRITE_BUFFER_ENTRY entry = CONTAINING_RECORD(iter,
            WRITE_BUFFER_ENTRY, ListEntry);

        ExFreePoolWithTag(entry->Buffer, VIOSERIAL_DRIVER_MEMORY_TAG);
        WdfObjectDelete(entry->EntryHandle);

        iter = PopEntryList(&Port->WriteBuffersList);
    };

    TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "<-- %s\n", __FUNCTION__);

    return STATUS_SUCCESS;
}