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Nefarius.Peripherals.SerialPort/SerialPort.Properties.cs
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277
Nefarius.Peripherals.SerialPort/SerialPort.Properties.cs
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@ -0,0 +1,277 @@
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using Nefarius.Peripherals.SerialPort.Win32PInvoke;
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namespace Nefarius.Peripherals.SerialPort;
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public partial class SerialPort
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{
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/// <summary>
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/// If true, the port will automatically re-open on next send if it was previously closed due
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/// to an error (default: false)
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/// </summary>
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public bool AutoReopen { get; set; }
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/// <summary>
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/// Baud Rate (default: 115200)
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/// </summary>
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/// <remarks>Unsupported rates will throw "Bad settings".</remarks>
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public int BaudRate { get; set; } = 115200;
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/// <summary>
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/// If true, subsequent Send commands wait for completion of earlier ones enabling the results
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/// to be checked. If false, errors, including timeouts, may not be detected, but performance
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/// may be better.
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/// </summary>
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public bool CheckAllSends { get; set; } = true;
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/// <summary>
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/// Number of databits 1..8 (default: 8) unsupported values will throw "Bad settings"
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/// </summary>
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public int DataBits { get; set; } = 8;
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/// <summary>
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/// The parity checking scheme (default: none)
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/// </summary>
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public Parity Parity { get; set; } = Parity.None;
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/// <summary>
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/// If true, Xon and Xoff characters are sent to control the data flow from the remote station (default: false)
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/// </summary>
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public bool RxFlowX { get; set; }
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/// <summary>
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/// If true, received characters are ignored unless DSR is asserted by the remote station (default: false)
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/// </summary>
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public bool RxGateDsr { get; set; }
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/// <summary>
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/// The number of free bytes in the reception queue at which flow is disabled (default: 2048)
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/// </summary>
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public int RxHighWater { get; set; } = 2048;
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/// <summary>
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/// The number of bytes in the reception queue at which flow is re-enabled (default: 512)
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/// </summary>
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public int RxLowWater { get; set; } = 512;
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/// <summary>
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/// Requested size for receive queue (default: 0 = use operating system default)
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/// </summary>
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public int RxQueue { get; set; }
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/// <summary>
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/// Constant. Max time for Send in ms = (Multiplier * Characters) + Constant (default: 0)
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/// </summary>
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public int SendTimeoutConstant { get; set; }
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/// <summary>
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/// Multiplier. Max time for Send in ms = (Multiplier * Characters) + Constant
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/// (default: 0 = No timeout)
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/// </summary>
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public int SendTimeoutMultiplier { get; set; }
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/// <summary>
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/// Number of stop bits (default: one)
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/// </summary>
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public StopBits StopBits { get; set; } = StopBits.One;
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/// <summary>
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/// If true, transmission is halted unless CTS is asserted by the remote station (default: false)
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/// </summary>
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public bool TxFlowCts { get; set; }
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/// <summary>
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/// If true, transmission is halted unless DSR is asserted by the remote station (default: false)
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/// </summary>
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public bool TxFlowDsr { get; set; }
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/// <summary>
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/// If true, transmission is halted when Xoff is received and restarted when Xon is received (default: false)
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/// </summary>
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public bool TxFlowX { get; set; }
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/// <summary>
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/// Requested size for transmit queue (default: 0 = use operating system default)
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/// </summary>
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public int TxQueue { get; set; }
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/// <summary>
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/// If false, transmission is suspended when this station has sent Xoff to the remote station (default: true)
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/// Set false if the remote station treats any character as an Xon.
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/// </summary>
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public bool TxWhenRxXoff { get; set; } = true;
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/// <summary>
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/// Specidies the use to which the DTR output is put (default: none)
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/// </summary>
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public HsOutput UseDtr { get; set; } = HsOutput.None;
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/// <summary>
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/// Specifies the use to which the RTS output is put (default: none)
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/// </summary>
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public HsOutput UseRts { get; set; } = HsOutput.None;
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/// <summary>
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/// The character used to signal Xoff for X flow control (default: DC3)
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/// </summary>
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public ASCII XoffChar { get; set; } = ASCII.DC3;
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/// <summary>
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/// The character used to signal Xon for X flow control (default: DC1)
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/// </summary>
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public ASCII XonChar { get; set; } = ASCII.DC1;
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/// <summary>
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/// True if online.
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/// </summary>
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public bool Online => _online && CheckOnline();
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/// <summary>
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/// True if the RTS pin is controllable via the RTS property
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/// </summary>
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protected bool RtSavailable => _stateRts < 2;
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/// <summary>
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/// Set the state of the RTS modem control output
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/// </summary>
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protected bool Rts
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{
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set
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{
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if (_stateRts > 1) return;
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CheckOnline();
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if (value)
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{
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if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.SETRTS))
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_stateRts = 1;
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else
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ThrowException("Unexpected Failure");
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}
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else
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{
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if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.CLRRTS))
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_stateRts = 1;
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else
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ThrowException("Unexpected Failure");
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}
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}
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get => _stateRts == 1;
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}
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/// <summary>
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/// True if the DTR pin is controllable via the DTR property
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/// </summary>
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protected bool DtrAvailable => _stateDtr < 2;
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/// <summary>
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/// The state of the DTR modem control output
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/// </summary>
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protected bool Dtr
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{
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set
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{
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if (_stateDtr > 1) return;
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CheckOnline();
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if (value)
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{
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if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.SETDTR))
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_stateDtr = 1;
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else
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ThrowException("Unexpected Failure");
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}
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else
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{
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if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.CLRDTR))
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_stateDtr = 0;
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else
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ThrowException("Unexpected Failure");
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}
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}
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get => _stateDtr == 1;
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}
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/// <summary>
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/// Assert or remove a break condition from the transmission line
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/// </summary>
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protected bool Break
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{
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set
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{
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if (_stateBrk > 1) return;
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CheckOnline();
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if (value)
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{
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if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.SETBREAK))
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_stateBrk = 0;
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else
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ThrowException("Unexpected Failure");
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}
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else
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{
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if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.CLRBREAK))
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_stateBrk = 0;
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else
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ThrowException("Unexpected Failure");
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}
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}
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get => _stateBrk == 1;
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}
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/// <summary>
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/// Port Name
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/// </summary>
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public string PortName { get; set; }
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public Handshake Handshake
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{
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get => _handShake;
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set
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{
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_handShake = value;
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switch (_handShake)
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{
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case Handshake.None:
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TxFlowCts = false;
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TxFlowDsr = false;
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TxFlowX = false;
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RxFlowX = false;
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UseRts = HsOutput.Online;
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UseDtr = HsOutput.Online;
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TxWhenRxXoff = true;
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RxGateDsr = false;
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break;
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case Handshake.XonXoff:
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TxFlowCts = false;
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TxFlowDsr = false;
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TxFlowX = true;
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RxFlowX = true;
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UseRts = HsOutput.Online;
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UseDtr = HsOutput.Online;
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TxWhenRxXoff = true;
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RxGateDsr = false;
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XonChar = ASCII.DC1;
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XoffChar = ASCII.DC3;
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break;
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case Handshake.CtsRts:
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TxFlowCts = true;
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TxFlowDsr = false;
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TxFlowX = false;
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RxFlowX = false;
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UseRts = HsOutput.Handshake;
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UseDtr = HsOutput.Online;
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TxWhenRxXoff = true;
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RxGateDsr = false;
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break;
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case Handshake.DsrDtr:
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TxFlowCts = false;
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TxFlowDsr = true;
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TxFlowX = false;
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RxFlowX = false;
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UseRts = HsOutput.Online;
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UseDtr = HsOutput.Handshake;
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TxWhenRxXoff = true;
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RxGateDsr = false;
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break;
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}
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}
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}
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}
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@ -15,8 +15,41 @@ namespace Nefarius.Peripherals.SerialPort;
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/// PInvokeSerialPort main class.
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/// PInvokeSerialPort main class.
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/// Borrowed from http://msdn.microsoft.com/en-us/magazine/cc301786.aspx ;)
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/// Borrowed from http://msdn.microsoft.com/en-us/magazine/cc301786.aspx ;)
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/// </summary>
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/// </summary>
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public class SerialPort : IDisposable
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public partial class SerialPort : IDisposable
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{
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{
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private readonly ManualResetEvent _writeEvent = new(false);
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private bool _auto;
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private bool _checkSends = true;
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private Handshake _handShake;
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private SafeFileHandle _hPort;
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private bool _online;
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private NativeOverlapped _ptrUwo;
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private Exception _rxException;
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private bool _rxExceptionReported;
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private Thread _rxThread;
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private int _stateBrk = 2;
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private int _stateDtr = 2;
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private int _stateRts = 2;
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private int _writeCount;
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/// <summary>
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/// Class constructor
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/// </summary>
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public SerialPort(string portName)
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{
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PortName = portName;
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}
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/// <inheritdoc />
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/// <summary>
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/// Class constructor
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/// </summary>
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public SerialPort(string portName, int baudRate) : this(portName)
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{
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BaudRate = baudRate;
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}
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/// <inheritdoc />
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/// <inheritdoc />
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/// <summary>
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/// <summary>
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/// For IDisposable
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/// For IDisposable
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@ -210,7 +243,7 @@ public class SerialPort : IDisposable
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}
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}
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else
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else
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{
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{
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if (Marshal.GetLastWin32Error() != (int)WIN32_ERROR.ERROR_IO_PENDING)
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if (Marshal.GetLastWin32Error() != (int)WIN32_ERROR.ERROR_IO_PENDING)
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ThrowException("Unexpected failure");
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ThrowException("Unexpected failure");
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}
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}
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}
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}
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@ -291,8 +324,7 @@ public class SerialPort : IDisposable
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if (!Win32Com.GetCommModemStatus(_hPort.DangerousGetHandle(), out f)) ThrowException("Unexpected failure");
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if (!Win32Com.GetCommModemStatus(_hPort.DangerousGetHandle(), out f)) ThrowException("Unexpected failure");
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return new ModemStatus(f);
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return new ModemStatus(f);
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}
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}
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/// <summary>
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/// <summary>
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/// Get the status of the queues
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/// Get the status of the queues
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/// </summary>
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/// </summary>
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@ -506,317 +538,4 @@ public class SerialPort : IDisposable
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ThrowException("Offline");
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ThrowException("Offline");
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return false;
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return false;
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}
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}
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#region Private fields
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private readonly ManualResetEvent _writeEvent = new(false);
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private bool _auto;
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private bool _checkSends = true;
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private Handshake _handShake;
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private SafeFileHandle _hPort;
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private bool _online;
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private NativeOverlapped _ptrUwo;
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private Exception _rxException;
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private bool _rxExceptionReported;
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private Thread _rxThread;
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private int _stateBrk = 2;
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private int _stateDtr = 2;
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private int _stateRts = 2;
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private int _writeCount;
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#endregion
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#region Public properties
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/// <summary>
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/// Class constructor
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/// </summary>
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public SerialPort(string portName)
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{
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PortName = portName;
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}
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/// <inheritdoc />
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/// <summary>
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/// Class constructor
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/// </summary>
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public SerialPort(string portName, int baudRate) : this(portName)
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{
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BaudRate = baudRate;
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}
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/// <summary>
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/// If true, the port will automatically re-open on next send if it was previously closed due
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/// to an error (default: false)
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/// </summary>
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public bool AutoReopen { get; set; }
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/// <summary>
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/// Baud Rate (default: 115200)
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/// </summary>
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/// <remarks>Unsupported rates will throw "Bad settings".</remarks>
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public int BaudRate { get; set; } = 115200;
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/// <summary>
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/// If true, subsequent Send commands wait for completion of earlier ones enabling the results
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/// to be checked. If false, errors, including timeouts, may not be detected, but performance
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||||||
/// may be better.
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||||||
/// </summary>
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public bool CheckAllSends { get; set; } = true;
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/// <summary>
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/// Number of databits 1..8 (default: 8) unsupported values will throw "Bad settings"
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||||||
/// </summary>
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public int DataBits { get; set; } = 8;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// The parity checking scheme (default: none)
|
|
||||||
/// </summary>
|
|
||||||
public Parity Parity { get; set; } = Parity.None;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// If true, Xon and Xoff characters are sent to control the data flow from the remote station (default: false)
|
|
||||||
/// </summary>
|
|
||||||
public bool RxFlowX { get; set; }
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// If true, received characters are ignored unless DSR is asserted by the remote station (default: false)
|
|
||||||
/// </summary>
|
|
||||||
public bool RxGateDsr { get; set; }
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// The number of free bytes in the reception queue at which flow is disabled (default: 2048)
|
|
||||||
/// </summary>
|
|
||||||
public int RxHighWater { get; set; } = 2048;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// The number of bytes in the reception queue at which flow is re-enabled (default: 512)
|
|
||||||
/// </summary>
|
|
||||||
public int RxLowWater { get; set; } = 512;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Requested size for receive queue (default: 0 = use operating system default)
|
|
||||||
/// </summary>
|
|
||||||
public int RxQueue { get; set; }
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Constant. Max time for Send in ms = (Multiplier * Characters) + Constant (default: 0)
|
|
||||||
/// </summary>
|
|
||||||
public int SendTimeoutConstant { get; set; }
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Multiplier. Max time for Send in ms = (Multiplier * Characters) + Constant
|
|
||||||
/// (default: 0 = No timeout)
|
|
||||||
/// </summary>
|
|
||||||
public int SendTimeoutMultiplier { get; set; }
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Number of stop bits (default: one)
|
|
||||||
/// </summary>
|
|
||||||
public StopBits StopBits { get; set; } = StopBits.One;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// If true, transmission is halted unless CTS is asserted by the remote station (default: false)
|
|
||||||
/// </summary>
|
|
||||||
public bool TxFlowCts { get; set; }
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// If true, transmission is halted unless DSR is asserted by the remote station (default: false)
|
|
||||||
/// </summary>
|
|
||||||
public bool TxFlowDsr { get; set; }
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// If true, transmission is halted when Xoff is received and restarted when Xon is received (default: false)
|
|
||||||
/// </summary>
|
|
||||||
public bool TxFlowX { get; set; }
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Requested size for transmit queue (default: 0 = use operating system default)
|
|
||||||
/// </summary>
|
|
||||||
public int TxQueue { get; set; }
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// If false, transmission is suspended when this station has sent Xoff to the remote station (default: true)
|
|
||||||
/// Set false if the remote station treats any character as an Xon.
|
|
||||||
/// </summary>
|
|
||||||
public bool TxWhenRxXoff { get; set; } = true;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Specidies the use to which the DTR output is put (default: none)
|
|
||||||
/// </summary>
|
|
||||||
public HsOutput UseDtr { get; set; } = HsOutput.None;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Specifies the use to which the RTS output is put (default: none)
|
|
||||||
/// </summary>
|
|
||||||
public HsOutput UseRts { get; set; } = HsOutput.None;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// The character used to signal Xoff for X flow control (default: DC3)
|
|
||||||
/// </summary>
|
|
||||||
public ASCII XoffChar { get; set; } = ASCII.DC3;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// The character used to signal Xon for X flow control (default: DC1)
|
|
||||||
/// </summary>
|
|
||||||
public ASCII XonChar { get; set; } = ASCII.DC1;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// True if online.
|
|
||||||
/// </summary>
|
|
||||||
public bool Online => _online && CheckOnline();
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// True if the RTS pin is controllable via the RTS property
|
|
||||||
/// </summary>
|
|
||||||
protected bool RtSavailable => _stateRts < 2;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Set the state of the RTS modem control output
|
|
||||||
/// </summary>
|
|
||||||
protected bool Rts
|
|
||||||
{
|
|
||||||
set
|
|
||||||
{
|
|
||||||
if (_stateRts > 1) return;
|
|
||||||
CheckOnline();
|
|
||||||
if (value)
|
|
||||||
{
|
|
||||||
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.SETRTS))
|
|
||||||
_stateRts = 1;
|
|
||||||
else
|
|
||||||
ThrowException("Unexpected Failure");
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.CLRRTS))
|
|
||||||
_stateRts = 1;
|
|
||||||
else
|
|
||||||
ThrowException("Unexpected Failure");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
get => _stateRts == 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// True if the DTR pin is controllable via the DTR property
|
|
||||||
/// </summary>
|
|
||||||
protected bool DtrAvailable => _stateDtr < 2;
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// The state of the DTR modem control output
|
|
||||||
/// </summary>
|
|
||||||
protected bool Dtr
|
|
||||||
{
|
|
||||||
set
|
|
||||||
{
|
|
||||||
if (_stateDtr > 1) return;
|
|
||||||
CheckOnline();
|
|
||||||
if (value)
|
|
||||||
{
|
|
||||||
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.SETDTR))
|
|
||||||
_stateDtr = 1;
|
|
||||||
else
|
|
||||||
ThrowException("Unexpected Failure");
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.CLRDTR))
|
|
||||||
_stateDtr = 0;
|
|
||||||
else
|
|
||||||
ThrowException("Unexpected Failure");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
get => _stateDtr == 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Assert or remove a break condition from the transmission line
|
|
||||||
/// </summary>
|
|
||||||
protected bool Break
|
|
||||||
{
|
|
||||||
set
|
|
||||||
{
|
|
||||||
if (_stateBrk > 1) return;
|
|
||||||
CheckOnline();
|
|
||||||
if (value)
|
|
||||||
{
|
|
||||||
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.SETBREAK))
|
|
||||||
_stateBrk = 0;
|
|
||||||
else
|
|
||||||
ThrowException("Unexpected Failure");
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.CLRBREAK))
|
|
||||||
_stateBrk = 0;
|
|
||||||
else
|
|
||||||
ThrowException("Unexpected Failure");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
get => _stateBrk == 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Port Name
|
|
||||||
/// </summary>
|
|
||||||
public string PortName { get; set; }
|
|
||||||
|
|
||||||
public Handshake Handshake
|
|
||||||
{
|
|
||||||
get => _handShake;
|
|
||||||
set
|
|
||||||
{
|
|
||||||
_handShake = value;
|
|
||||||
switch (_handShake)
|
|
||||||
{
|
|
||||||
case Handshake.None:
|
|
||||||
TxFlowCts = false;
|
|
||||||
TxFlowDsr = false;
|
|
||||||
TxFlowX = false;
|
|
||||||
RxFlowX = false;
|
|
||||||
UseRts = HsOutput.Online;
|
|
||||||
UseDtr = HsOutput.Online;
|
|
||||||
TxWhenRxXoff = true;
|
|
||||||
RxGateDsr = false;
|
|
||||||
break;
|
|
||||||
case Handshake.XonXoff:
|
|
||||||
TxFlowCts = false;
|
|
||||||
TxFlowDsr = false;
|
|
||||||
TxFlowX = true;
|
|
||||||
RxFlowX = true;
|
|
||||||
UseRts = HsOutput.Online;
|
|
||||||
UseDtr = HsOutput.Online;
|
|
||||||
TxWhenRxXoff = true;
|
|
||||||
RxGateDsr = false;
|
|
||||||
XonChar = ASCII.DC1;
|
|
||||||
XoffChar = ASCII.DC3;
|
|
||||||
break;
|
|
||||||
case Handshake.CtsRts:
|
|
||||||
TxFlowCts = true;
|
|
||||||
TxFlowDsr = false;
|
|
||||||
TxFlowX = false;
|
|
||||||
RxFlowX = false;
|
|
||||||
UseRts = HsOutput.Handshake;
|
|
||||||
UseDtr = HsOutput.Online;
|
|
||||||
TxWhenRxXoff = true;
|
|
||||||
RxGateDsr = false;
|
|
||||||
break;
|
|
||||||
case Handshake.DsrDtr:
|
|
||||||
TxFlowCts = false;
|
|
||||||
TxFlowDsr = true;
|
|
||||||
TxFlowX = false;
|
|
||||||
RxFlowX = false;
|
|
||||||
UseRts = HsOutput.Online;
|
|
||||||
UseDtr = HsOutput.Handshake;
|
|
||||||
TxWhenRxXoff = true;
|
|
||||||
RxGateDsr = false;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#endregion
|
|
||||||
}
|
}
|
||||||
Loading…
Reference in New Issue
Block a user