/// <summary>Constructs a new instance.</summary>
/// <param name="socketNumber">The socket that this module is plugged in to.</param>
public TempHumidity(int socketNumber)
{
Socket socket = Socket.GetSocket(socketNumber, true, this, null);
socket.EnsureTypeIsSupported(new char[] { 'X', 'Y' }, this);
this.sck = GTI.DigitalOutputFactory.Create(socket, Socket.Pin.Four, false, this);
this.data = GTI.DigitalIOFactory.Create(socket, Socket.Pin.Three, true, GTI.GlitchFilterMode.Off, GTI.ResistorMode.Disabled, this);
this.running = false;
}
// Note: A constructor summary is auto-generated by the doc builder.
/// <summary></summary>
/// <param name="socketNumber">The socket that this module is plugged in to.</param>
public TemperatureSensor(int socketNumber)
{
// This finds the Socket instance from the user-specified socket number.
// This will generate user-friendly error messages if the socket is invalid.
// If there is more than one socket on this module, then instead of "null" for the last parameter,
// put text that identifies the socket to the user (e.g. "S" if there is a socket type S)
Socket socket = Socket.GetSocket(socketNumber, true, this, null);
_sck = GTI.DigitalOutputFactory.Create(socket, Socket.Pin.Four, false, this);
_data = GTI.DigitalIOFactory.Create(socket, Socket.Pin.Three, true, GTI.GlitchFilterMode.Off, GTI.ResistorMode.Disabled, this);
new Thread(TakeMeasurements).Start();
}
// Note: A constructor summary is auto-generated by the doc builder.
/// <summary></summary>
/// <remarks>This automatically checks that the socket supports Type X or Y as appropriate, and reserves the SDA and SCL pins.
/// An exception will be thrown if there is a problem with these checks.</remarks>
/// <param name="socket">The socket for this software I2C device interface.</param>
/// <param name="address">The address of the I2C device.</param>
/// <param name="clockRateKHz">The maximum clock speed supported by the I2C device.</param>
/// <param name="sdaPin">The socket pin used for I2C data.</param>
/// <param name="sclPin">The socket pin used for I2C clock.</param>
/// <param name="module">The module using this I2C interface, which can be null if unspecified.</param>
public SoftwareI2CBus(Socket socket, Socket.Pin sdaPin, Socket.Pin sclPin, ushort address, int clockRateKHz, Module module)
{
this.address = (byte)address;
this.clockRateKHz = clockRateKHz;
// see if we've already reserved the pins and got instances of the ports, otherwise do that.
string sdaPinString = socket.ToString() + "___" + sdaPin;
if (!ReservedSdaPinPorts.Contains(sdaPinString))
{
sdaPort = DigitalIOFactory.Create(socket, sdaPin, false, GlitchFilterMode.Off, ForceManagedPullUps ? ResistorMode.PullUp : ResistorMode.Disabled, module);
ReservedSdaPinPorts.Add(sdaPinString, sdaPort);
}
else
{
sdaPort = (DigitalIO)ReservedSdaPinPorts[sdaPinString];
}
string sclPinString = socket.ToString() + "___" + sclPin;
if (!ReservedSclPinPorts.Contains(sclPinString))
{
sclPort = DigitalIOFactory.Create(socket, sclPin, false, GlitchFilterMode.Off, ForceManagedPullUps ? ResistorMode.PullUp : ResistorMode.Disabled, module);
ReservedSclPinPorts.Add(sclPinString, sclPort);
}
else
{
sclPort = (DigitalIO)ReservedSclPinPorts[sclPinString];
}
this.socket = socket;
this.sdaPin = sdaPin;
this.sclPin = sclPin;
lock (SoftwareI2CTimeoutList)
{
timeoutCount = -1; // Prevent the TimeoutHandler thread from watching this port for now
SoftwareI2CTimeoutList.Add(this);
if (timeoutThread == null)
{
threadExit = false;
timeoutThread = new Thread(TimeoutHandler);
timeoutThread.Start();
}
}
}
// Note: A constructor summary is auto-generated by the doc builder.
/// <summary></summary>
/// <remarks>This automatically checks that the socket supports Type X or Y as appropriate, and reserves the SDA and SCL pins.
/// An exception will be thrown if there is a problem with these checks.</remarks>
/// <param name="socket">The socket for this software I2C device interface.</param>
/// <param name="address">The address of the I2C device.</param>
/// <param name="clockRateKHz">The maximum clock speed supported by the I2C device.</param>
/// <param name="sdaPin">The socket pin used for I2C data.</param>
/// <param name="sclPin">The socket pin used for I2C clock.</param>
/// <param name="module">The module using this I2C interface, which can be null if unspecified.</param>
public SoftwareI2CBus(Socket socket, Socket.Pin sdaPin, Socket.Pin sclPin, ushort address, int clockRateKHz, Module module)
{
this.address = (byte)address;
this.clockRateKHz = clockRateKHz;
// see if we've already reserved the pins and got instances of the ports, otherwise do that.
string sdaPinString = socket.ToString() + "___" + sdaPin;
if (!ReservedSdaPinPorts.Contains(sdaPinString))
{
sdaPort = DigitalIOFactory.Create(socket, sdaPin, false, GlitchFilterMode.Off, ForceManagedPullUps ? ResistorMode.PullUp : ResistorMode.Disabled, module);
ReservedSdaPinPorts.Add(sdaPinString, sdaPort);
}
else
{
sdaPort = (DigitalIO)ReservedSdaPinPorts[sdaPinString];
}
string sclPinString = socket.ToString() + "___" + sclPin;
if (!ReservedSclPinPorts.Contains(sclPinString))
{
sclPort = DigitalIOFactory.Create(socket, sclPin, false, GlitchFilterMode.Off, ForceManagedPullUps ? ResistorMode.PullUp : ResistorMode.Disabled, module);
ReservedSclPinPorts.Add(sclPinString, sclPort);
}
else
{
sclPort = (DigitalIO)ReservedSclPinPorts[sclPinString];
}
this.socket = socket;
this.sdaPin = sdaPin;
this.sclPin = sclPin;
lock (SoftwareI2CTimeoutList)
{
timeoutCount = -1; // Prevent the TimeoutHandler thread from watching this port for now
SoftwareI2CTimeoutList.Add(this);
if (timeoutThread == null)
{
threadExit = false;
timeoutThread = new Thread(TimeoutHandler);
timeoutThread.Start();
}
}
}
public SoftwareI2CBus(Socket socket, Socket.Pin sdaPin, Socket.Pin sclPin, ushort address, int clockRateKHz, Module module)
{
this.address = (byte)address;
this.clockRateKHz = clockRateKHz;
string key = socket.ToString() + "___" + sdaPin;
if (!ReservedSdaPinPorts.Contains(key))
{
this.sdaPort = DigitalIOFactory.Create(socket, sdaPin, false, GlitchFilterMode.Off, ForceManagedPullUps ? ResistorMode.PullUp : ResistorMode.Disabled, module);
ReservedSdaPinPorts.Add(key, this.sdaPort);
}
else
{
this.sdaPort = (DigitalIO)ReservedSdaPinPorts[key];
}
string str2 = socket.ToString() + "___" + sclPin;
if (!ReservedSclPinPorts.Contains(str2))
{
this.sclPort = DigitalIOFactory.Create(socket, sclPin, false, GlitchFilterMode.Off, ForceManagedPullUps ? ResistorMode.PullUp : ResistorMode.Disabled, module);
ReservedSclPinPorts.Add(str2, this.sclPort);
}
else
{
this.sclPort = (DigitalIO)ReservedSclPinPorts[str2];
}
this.socket = socket;
this.sdaPin = sdaPin;
this.sclPin = sclPin;
ArrayList list = SoftwareI2CTimeoutList;
lock (list)
{
this.timeoutCount = -1;
SoftwareI2CTimeoutList.Add(this);
if (timeoutThread == null)
{
threadExit = false;
timeoutThread = new Thread(new ThreadStart(SoftwareI2CBus.TimeoutHandler));
timeoutThread.Start();
}
}
}
private void DoManagedWriteRead(byte address, byte[] writeBuffer, int writeOffset, int writeLength, byte[] readBuffer, int readOffset, int readLength, out int numWritten, out int numRead)
{
DigitalIO sdaPort = this.sdaPort;
lock (sdaPort)
{
ArrayList list = SoftwareI2CTimeoutList;
lock (list)
{
this.timeout = false;
this.timeoutCount = 0;
}
numWritten = 0;
numRead = 0;
if (writeLength != 0)
{
if (!this.sclPort.Read())
{
throw new ApplicationException("Software I2C: clock signal on socket " + this.socket + " is being held low.");
}
this.sdaPort.Mode = IOMode.Output;
this.sclPort.Mode = IOMode.Output;
if (this.WriteByte((byte)(address << 1)))
{
for (int i = writeOffset; i < (writeOffset + writeLength); i++)
{
if (!this.WriteByte(writeBuffer[i]))
{
break;
}
numWritten++;
}
}
if ((readLength == 0) || (numWritten != writeLength))
{
this.sclPort.Mode = IOMode.Input;
while (!this.sclPort.Read() && !this.timeout)
{
}
this.sdaPort.Mode = IOMode.Input;
}
else
{
this.sdaPort.Mode = IOMode.Input;
while (!this.sdaPort.Read() && !this.timeout)
{
}
this.sclPort.Mode = IOMode.Input;
}
}
if (this.timeout)
{
throw new ApplicationException("Software I2C: clock signal on socket " + this.socket + " is being held low.");
}
if ((numWritten == writeLength) && (readLength != 0))
{
if (!this.sclPort.Read())
{
throw new ApplicationException("Software I2C: clock signal on socket " + this.socket + " is being held low.");
}
this.sdaPort.Mode = IOMode.Output;
this.sclPort.Mode = IOMode.Output;
if (this.WriteByte((byte)((address << 1) | 1)))
{
int num2 = (readOffset + readLength) - 1;
for (int j = readOffset; j < (readOffset + readLength); j++)
{
if (!this.ReadByte(j == num2, out readBuffer[j]))
{
break;
}
numRead++;
}
}
this.sclPort.Mode = IOMode.Input;
while (!this.sclPort.Read() & !this.timeout)
{
}
this.sdaPort.Mode = IOMode.Input;
}
if (this.timeout)
{
throw new ApplicationException("Software I2C: clock signal on socket " + this.socket + " is being held low.");
}
list = SoftwareI2CTimeoutList;
lock (list)
{
this.timeoutCount = -1;
}
}
}
/// <summary>
/// Sends a reset pulse on the daisylink chain. This resets all DaisyLink nodes to INIT state, that is, waiting for a DaisyLink message.
/// </summary>
/// <remarks>
/// It is recommended to reboot the mainboard after calling this method because communication to the DaisyLink nodes will fail.
/// </remarks>
internal void SendResetPulse()
{
lock (portLock)
{
if (daisyLinkInterruptPort != null)
{
daisyLinkInterruptPort.Interrupt -= daisyLinkInterruptPort_OnInterrupt;
daisyLinkInterruptPort.Dispose(); // Ask hardware drivers to unreserve this pin
daisyLinkInterruptPort = null;
}
if (daisyLinkResetPort == null)
{
daisyLinkResetPort = DigitalIOFactory.Create(Socket, daisyLinkPin, false, GlitchFilterMode.Off, ResistorMode.PullUp, null);
}
daisyLinkResetPort.Mode = IOMode.Output; // Should drive the neighbor bus high
Thread.Sleep(2); // 2 milliseconds is definitely more than 1 ms
daisyLinkResetPort.Mode = IOMode.Input; // Pull-downs should take the neighbor bus back low
daisyLinkResetPort.Dispose(); // Remove this pin from the hardware's reserved pin list
daisyLinkResetPort = null;
}
}
private DaisyLink(Socket socket, DaisyLinkModule module)
{
Ready = false;
this.Socket = socket;
this.ReservedCount = 0;
this.NodeCount = 0;
daisyLinkBus = I2CBusFactory.Create(socket, defaultI2cAddress, 10, i2cDataPin, i2cClockPin, module);
// The link pin (port) is initialized as an input. It is only driven during initialization of the daisylinked modules.
daisyLinkResetPort = DigitalIOFactory.Create(socket, daisyLinkPin, false, GlitchFilterMode.Off, ResistorMode.PullUp, module);
daisyLinkInterruptPort = null;
}
