public static bool InterfaceConnect(string port, object parameter)
{
if (TcpElmClient != null)
{
return(true);
}
try
{
ConnectPort = port;
ConnectParameter = parameter;
#if Android
if (ConnectParameter is ConnectParameterType connectParameter)
{
ConnManager = connectParameter.ConnectivityManager;
}
#endif
TcpClientWithTimeout.ExecuteNetworkCommand(() =>
{
TcpElmClient = new TcpClientWithTimeout(IPAddress.Parse(ElmIp), ElmPort, ConnectTimeout, true).Connect();
}, ConnManager);
TcpElmStream = TcpElmClient.GetStream();
_edElmInterface = new EdElmInterface(Ediabas, TcpElmStream, TcpElmStream);
if (!_edElmInterface.Elm327Init())
{
InterfaceDisconnect();
return(false);
}
}
catch (Exception)
{
InterfaceDisconnect();
return(false);
}
return(true);
}
public static bool InterfaceDisconnect()
{
bool result = true;
if (_edElmInterface != null)
{
_edElmInterface.Dispose();
_edElmInterface = null;
}
try
{
if (_bluetoothInStream != null)
{
_bluetoothInStream.Close();
_bluetoothInStream = null;
}
}
catch (Exception)
{
result = false;
}
try
{
if (_bluetoothOutStream != null)
{
_bluetoothOutStream.Close();
_bluetoothOutStream = null;
}
}
catch (Exception)
{
result = false;
}
try
{
if (_bluetoothSocket != null)
{
_bluetoothSocket.Close();
_bluetoothSocket = null;
}
}
catch (Exception)
{
result = false;
}
return(result);
}
public static bool InterfaceDisconnect()
{
bool result = true;
if (_edElmInterface != null)
{
_edElmInterface.Dispose();
_edElmInterface = null;
}
try
{
if (TcpElmStream != null)
{
TcpElmStream.Close();
TcpElmStream = null;
}
}
catch (Exception)
{
result = false;
}
try
{
if (TcpElmClient != null)
{
TcpElmClient.Close();
TcpElmClient = null;
}
}
catch (Exception)
{
result = false;
}
return(result);
}
public static bool InterfaceConnect(string port, object parameter)
{
if (_bluetoothSocket != null)
{
return(true);
}
FastInit = false;
ConvertBaudResponse = false;
AutoKeyByteResponse = false;
AdapterType = -1;
AdapterVersion = -1;
LastCommTick = DateTime.MinValue.Ticks;
if (!port.StartsWith(PortId, StringComparison.OrdinalIgnoreCase))
{
InterfaceDisconnect();
return(false);
}
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.DefaultAdapter;
if (bluetoothAdapter == null)
{
return(false);
}
_rawMode = false;
_elm327Device = false;
_connectPort = port;
_reconnectRequired = false;
try
{
BluetoothDevice device;
string portData = port.Remove(0, PortId.Length);
if ((portData.Length > 0) && (portData[0] == ':'))
{ // special id
string addr = portData.Remove(0, 1);
string[] stringList = addr.Split('#', ';');
if (stringList.Length == 0)
{
InterfaceDisconnect();
return(false);
}
device = bluetoothAdapter.GetRemoteDevice(stringList[0]);
if (stringList.Length > 1)
{
if (string.Compare(stringList[1], Elm327Tag, StringComparison.OrdinalIgnoreCase) == 0)
{
_elm327Device = true;
}
else if (string.Compare(stringList[1], RawTag, StringComparison.OrdinalIgnoreCase) == 0)
{
_rawMode = true;
}
}
}
else
{
InterfaceDisconnect();
return(false);
}
if (device == null)
{
InterfaceDisconnect();
return(false);
}
bluetoothAdapter.CancelDiscovery();
_bluetoothSocket = device.CreateRfcommSocketToServiceRecord(SppUuid);
try
{
_bluetoothSocket.Connect();
}
catch (Exception)
{
try
{
// sometimes the second connect is working
_bluetoothSocket.Connect();
}
catch (Exception)
{
_bluetoothSocket.Close();
_bluetoothSocket = null;
}
}
if (_bluetoothSocket == null)
{
// this socket sometimes looses data for long telegrams
IntPtr createRfcommSocket = Android.Runtime.JNIEnv.GetMethodID(device.Class.Handle,
"createRfcommSocket", "(I)Landroid/bluetooth/BluetoothSocket;");
if (createRfcommSocket == IntPtr.Zero)
{
throw new Exception("No createRfcommSocket");
}
IntPtr rfCommSocket = Android.Runtime.JNIEnv.CallObjectMethod(device.Handle,
createRfcommSocket, new Android.Runtime.JValue(1));
if (rfCommSocket == IntPtr.Zero)
{
throw new Exception("No rfCommSocket");
}
_bluetoothSocket = Java.Lang.Object.GetObject <BluetoothSocket>(rfCommSocket, Android.Runtime.JniHandleOwnership.TransferLocalRef);
_bluetoothSocket.Connect();
}
Thread.Sleep(500);
_bluetoothInStream = _bluetoothSocket.InputStream;
_bluetoothOutStream = _bluetoothSocket.OutputStream;
if (_elm327Device)
{
_edElmInterface = new EdElmInterface(Ediabas, _bluetoothInStream, _bluetoothOutStream);
if (!_edElmInterface.Elm327Init())
{
InterfaceDisconnect();
return(false);
}
}
}
catch (Exception)
{
InterfaceDisconnect();
return(false);
}
return(true);
}
