/// <summary>
/// Create instance of EE31 protocol class.
/// </summary>
/// <param name="communicationInterface">The communication layer</param>
/// <returns></returns>
public static IEECommProtocol GetEE31Protocol(IEECommDevice communicationInterface)
{
if (communicationInterface == null)
{
throw new ArgumentNullException("communicationInterface");
}
// Only create one protocol instance per interface
lock (_protectInstances)
{
IEECommProtocol protItf = _protInstances.Find(p =>
(p.CommunicationInterface.InterfaceType == communicationInterface.InterfaceType &&
p.CommunicationInterface.InterfaceId == communicationInterface.InterfaceId));
if (protItf != null)
{
return(protItf);
}
var prot = new EE31Protocol(communicationInterface);
_protInstances.Add(prot);
return(prot);
}
}
public IEECommDevice TryGetDevice(IScanConfiguration config, ushort busAddr)
{
if (config is ScanConfigurationUART scanConfigurationUART)
{
if (busAddr == 0)
{
throw new ArgumentException("Device bus address must not be 0", "busAddr");
}
IEECommDevice device = null;
// Search in already existing devices before starting a new scan
lock (_foundDevices)
{
device = _foundDevices.FirstOrDefault(x => x.InterfaceType == InterfaceType.UART && x.InterfaceId == busAddr.ToString());
}
if (device != null)
{
// Try to revitalize device
IEECommProtocol protEE31 = EECommProtocolFactory.GetEE31Protocol(device);
IEECommandResult result = null;
// Force silence
Thread.Sleep(50);
// For non-EE31 devices (Modbus, etc.): Send protocol switch command to make them speak EE31 (again)
ushort discoveryId = DiscoveryCmdParams.BuildNewDiscoveryId();
try
{
result = protEE31.ExecuteCommand(EE31Command.Discovery, new DiscoveryCmdParams(discoveryId, busAddr, 0, 100));
}
catch { }
try
{
result = protEE31.ExecuteCommand(EE31Command.Discovery, new DiscoveryCmdParams(discoveryId, busAddr, 0, 50));
}
catch { }
if (result != null && result.Code == EECmdResultCode.Success)
{
return(device);
}
}
return(device);
}
else if (config is ScanConfigurationEmulation scanConfigurationEmulation)
{
IEECommDevice emulatedDevice = new EECommDeviceEmulation(0, scanConfigurationEmulation.EmulationDevicesSettings.ElementAt(0));
var existing = _foundDevices.FirstOrDefault(x => x.InterfaceType == InterfaceType.Emulation && x.InterfaceId == emulatedDevice.InterfaceId);
if (existing == null)
{
existing = emulatedDevice;
}
return(existing);
}
throw new NotImplementedException("Currently it is only possible to get UART or emulated devices.");
}
