/// <summary>
/// Adds the specified pin.
/// </summary>
/// <param name="pin">The pin.</param>
public void Add(PinConfiguration pin)
{
lock (pinConfigurations)
{
if (pinConfigurations.ContainsKey(pin.Pin))
{
throw new InvalidOperationException("This pin is already present on the connection");
}
if (!string.IsNullOrEmpty(pin.Name) && namedPins.ContainsKey(pin.Name))
{
throw new InvalidOperationException("A pin with the same name is already present on the connection");
}
pinConfigurations.Add(pin.Pin, pin);
if (!string.IsNullOrEmpty(pin.Name))
{
namedPins.Add(pin.Name, pin);
}
lock (timer)
{
if (IsOpened)
{
Allocate(pin);
}
}
}
}
private void Allocate(PinConfiguration configuration)
{
if (configuration.StatusChangedAction != null)
{
var handler = new EventHandler <PinStatusEventArgs>((sender, args) =>
{
if (args.Configuration == configuration)
{
configuration.StatusChangedAction(args.Enabled);
}
});
pinEvents[configuration.Pin] = handler;
PinStatusChanged += handler;
}
Driver.Allocate(configuration.Pin, configuration.Direction);
var outputConfiguration = configuration as OutputPinConfiguration;
if (outputConfiguration != null)
{
this[configuration.Pin] = outputConfiguration.Enabled;
}
else
{
var inputConfiguration = (InputPinConfiguration)configuration;
var pinValue = Driver.Read(inputConfiguration.Pin);
var pin = (ProcessorPins)((uint)1 << (int)inputConfiguration.Pin);
inputPins = inputPins | pin;
pinRawValues = Driver.Read(inputPins);
if (inputConfiguration.Resistor != PinResistor.None)
{
Driver.SetPinResistor(inputConfiguration.Pin, inputConfiguration.Resistor);
}
var switchConfiguration = inputConfiguration as SwitchInputPinConfiguration;
if (switchConfiguration != null)
{
pinValues[inputConfiguration.Pin] = switchConfiguration.Enabled;
OnPinStatusChanged(new PinStatusEventArgs {
Configuration = inputConfiguration, Enabled = pinValues[inputConfiguration.Pin]
});
}
else
{
pinValues[inputConfiguration.Pin] = inputConfiguration.GetEffective(pinValue);
OnPinStatusChanged(new PinStatusEventArgs {
Configuration = inputConfiguration, Enabled = pinValues[inputConfiguration.Pin]
});
}
}
}
private void Release(PinConfiguration configuration)
{
if (configuration.Direction == PinDirection.Output)
{
Driver.Write(configuration.Pin, false);
OnPinStatusChanged(new PinStatusEventArgs {
Enabled = false, Configuration = configuration
});
}
Driver.Release(configuration.Pin);
EventHandler <PinStatusEventArgs> handler;
if (pinEvents.TryGetValue(configuration.Pin, out handler))
{
PinStatusChanged -= handler;
pinEvents.Remove(configuration.Pin);
}
}
/// <summary>
/// Gets or sets the status of the specified pin.
/// </summary>
public bool this[PinConfiguration pin]
{
get { return(pinValues[pin.Pin]); }
set
{
if (pin.Direction == PinDirection.Output)
{
var pinValue = pin.GetEffective(value);
Driver.Write(pin.Pin, pinValue);
pinValues[pin.Pin] = value;
OnPinStatusChanged(new PinStatusEventArgs {
Enabled = value, Configuration = pin
});
}
else
{
throw new InvalidOperationException("Value of input pins cannot be modified");
}
}
}
/// <summary>
/// Removes the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
public void Remove(PinConfiguration configuration)
{
lock (pinConfigurations)
{
lock (timer)
{
if (IsOpened)
{
Release(configuration);
}
}
pinConfigurations.Remove(configuration.Pin);
if (!string.IsNullOrEmpty(configuration.Name))
{
namedPins.Remove(configuration.Name);
}
pinValues.Remove(configuration.Pin);
var pin = (ProcessorPins)((uint)1 << (int)configuration.Pin);
inputPins = inputPins & ~pin;
pinRawValues = pinRawValues & ~pin;
}
}
/// <summary>
/// Removes the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
public void Remove(PinConfiguration configuration)
{
lock (pinConfigurations)
{
lock (timer)
{
if (IsOpened)
{
Release(configuration);
}
}
pinConfigurations.Remove(configuration.Pin);
if (!string.IsNullOrEmpty(configuration.Name))
{
namedPins.Remove(configuration.Name);
}
pinValues.Remove(configuration.Pin);
var pin = (int)configuration.Pin;
inputPins.Set(pin, false);
pinRawValues.Set(pin, false);
}
}
/// <summary>
/// Adds the specified pin.
/// </summary>
/// <param name="pin">The pin.</param>
public void Add(PinConfiguration pin)
{
lock (pinConfigurations)
{
if (pinConfigurations.ContainsKey(pin.Pin))
throw new InvalidOperationException("This pin is already present on the connection");
if (!string.IsNullOrEmpty(pin.Name) && namedPins.ContainsKey(pin.Name))
throw new InvalidOperationException("A pin with the same name is already present on the connection");
pinConfigurations.Add(pin.Pin, pin);
if (!string.IsNullOrEmpty(pin.Name))
namedPins.Add(pin.Name, pin);
lock (timer)
{
if (IsOpened)
Allocate(pin);
}
}
}
/// <summary>
/// Gets or sets the status of the specified pin.
/// </summary>
public bool this[PinConfiguration pin]
{
get { return pinValues[pin.Pin]; }
set
{
if (pin.Direction == PinDirection.Output)
{
var pinValue = pin.GetEffective(value);
Driver.Write(pin.Pin, pinValue);
pinValues[pin.Pin] = value;
OnPinStatusChanged(new PinStatusEventArgs {Enabled = value, Configuration = pin});
}
else
throw new InvalidOperationException("Value of input pins cannot be modified");
}
}
internal ConnectedPin(GpioConnection connection, PinConfiguration pinConfiguration)
{
this.connection = connection;
Configuration = pinConfiguration;
}
static void Main(string[] args)
{
try
{
var driver = args.GetDriver();
var mainboard = Board.Current;
if (!mainboard.IsRaspberryPi)
{
Console.WriteLine("'{0}' is not a valid processor for a Raspberry Pi.", mainboard.Processor);
return;
}
// Declare outputs (leds)
var leds = new PinConfiguration[]
{
ConnectorPin.P1Pin26.Output().Name("Led1").Enable(),
ConnectorPin.P1Pin24.Output().Name("Led2"),
ConnectorPin.P1Pin22.Output().Name("Led3").Enable(),
ConnectorPin.P1Pin15.Output().Name("Led4"),
ConnectorPin.P1Pin13.Output().Name("Led5").Enable(),
ConnectorPin.P1Pin11.Output().Name("Led6")
};
// Assign a behavior to the leds
var behavior = new ChaserBehavior(leds)
{
Loop = args.GetLoop(),
RoundTrip = args.GetRoundTrip(),
Width = args.GetWidth(),
Interval = args.GetSpeed()
};
// Alternate behaviors...
/*
var random = new Random();
var behavior = new PatternBehavior(leds, Enumerable.Range(0, 5).Select(i => random.Next(511)))
{
Loop = Helpers.GetLoop(args),
RoundTrip = Helpers.GetRoundTrip(args),
Interval = Helpers.GetSpeed(args)
};*/
/*
var behavior = new BlinkBehavior(leds)
{
Count = args.GetWidth(),
Interval = args.GetSpeed()
};*/
// Declare input (switchButton) interacting with the leds behavior
var switchButton = ConnectorPin.P1Pin03.Input()
.Name("Switch")
.Revert()
.Switch()
.Enable()
.OnStatusChanged(b =>
{
behavior.RoundTrip = !behavior.RoundTrip;
Console.WriteLine("Button switched {0}", b ? "on" : "off");
});
// Create connection
Console.WriteLine("Running on Raspberry firmware rev{0}, board rev{1}, processor {2}", mainboard.Firmware, mainboard.Revision, mainboard.Processor);
var settings = new GpioConnectionSettings {Driver = driver};
using (var connection = new GpioConnection(settings, leds))
{
Console.WriteLine("Using {0}, frequency {1:0.##}hz", settings.Driver.GetType().Name, 1000.0/args.GetSpeed());
Thread.Sleep(1000);
connection.Add(switchButton);
connection.Start(behavior); // Starting the behavior automatically registers the pins to the connection, if needed.
Console.ReadKey(true);
connection.Stop(behavior);
}
}
catch(Exception ex)
{
var currentException = ex;
while (currentException != null)
{
Console.WriteLine("{0}: {1}", currentException.GetType().Name, currentException.Message);
currentException = currentException.InnerException;
}
}
}
/// <summary>
/// Blinks the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
/// <param name="duration">The duration, in millisecond.</param>
public void Blink(PinConfiguration configuration, decimal duration = -1)
{
Toggle(configuration);
Sleep(duration);
Toggle(configuration);
}
/// <summary>
/// Blinks the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
/// <param name="duration">The duration.</param>
public void Blink(PinConfiguration configuration, TimeSpan duration = new TimeSpan())
{
Toggle(configuration);
Sleep(duration);
Toggle(configuration);
}
private void Allocate(PinConfiguration configuration)
{
if (configuration.StatusChangedAction != null)
{
var handler = new EventHandler<PinStatusEventArgs>((sender, args) =>
{
if (args.Configuration == configuration)
configuration.StatusChangedAction(args.Enabled);
});
pinEvents[configuration.Pin] = handler;
PinStatusChanged += handler;
}
Driver.Allocate(configuration.Pin, configuration.Direction);
var outputConfiguration = configuration as OutputPinConfiguration;
if (outputConfiguration != null)
this[configuration.Pin] = outputConfiguration.Enabled;
else
{
var inputConfiguration = (InputPinConfiguration) configuration;
var pinValue = Driver.Read(inputConfiguration.Pin);
var pin = (ProcessorPins)((uint)1 << (int)inputConfiguration.Pin);
inputPins = inputPins | pin;
pinRawValues = Driver.Read(inputPins);
if (inputConfiguration.Resistor != PinResistor.None)
Driver.SetPinResistor(inputConfiguration.Pin, inputConfiguration.Resistor);
var switchConfiguration = inputConfiguration as SwitchInputPinConfiguration;
if (switchConfiguration != null)
{
pinValues[inputConfiguration.Pin] = switchConfiguration.Enabled;
OnPinStatusChanged(new PinStatusEventArgs { Configuration = inputConfiguration, Enabled = pinValues[inputConfiguration.Pin] });
}
else
{
pinValues[inputConfiguration.Pin] = inputConfiguration.GetEffective(pinValue);
OnPinStatusChanged(new PinStatusEventArgs { Configuration = inputConfiguration, Enabled = pinValues[inputConfiguration.Pin] });
}
}
}
/// <summary>
/// Toggles the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
public void Toggle(PinConfiguration configuration)
{
this[configuration] = !this[configuration];
}
/// <summary>
/// Determines whether the connection contains the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
/// <returns>
/// <c>true</c> if the connection contains the specified pin; otherwise, <c>false</c>.
/// </returns>
public bool Contains(PinConfiguration configuration)
{
return pinConfigurations.ContainsKey(configuration.Pin);
}
/// <summary>
/// Gets the status of the specified pin.
/// </summary>
public ConnectedPin this[PinConfiguration pin]
{
get { return(new ConnectedPin(connection, pin)); }
}
/// <summary>
/// Blinks the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
/// <param name="duration">The duration.</param>
public void Blink(PinConfiguration configuration, TimeSpan duration = new TimeSpan())
{
Toggle(configuration);
Sleep(duration);
Toggle(configuration);
}
static void Main(string[] args)
{
const ConnectorPin led1Pin = ConnectorPin.P1Pin26;
const ConnectorPin led2Pin = ConnectorPin.P1Pin24;
const ConnectorPin led3Pin = ConnectorPin.P1Pin22;
const ConnectorPin led4Pin = ConnectorPin.P1Pin15;
const ConnectorPin led5Pin = ConnectorPin.P1Pin13;
const ConnectorPin led6Pin = ConnectorPin.P1Pin11;
const ConnectorPin buttonPin = ConnectorPin.P1Pin03;
Console.WriteLine("Chaser Sample: Sample a LED chaser with a switch to change behavior");
Console.WriteLine();
Console.WriteLine("\tLed 1: {0}", led1Pin);
Console.WriteLine("\tLed 2: {0}", led2Pin);
Console.WriteLine("\tLed 3: {0}", led3Pin);
Console.WriteLine("\tLed 4: {0}", led4Pin);
Console.WriteLine("\tLed 5: {0}", led5Pin);
Console.WriteLine("\tLed 6: {0}", led6Pin);
Console.WriteLine("\tSwitch: {0}", buttonPin);
Console.WriteLine();
var driver = args.GetDriver();
// Declare outputs (leds)
var leds = new PinConfiguration[]
{
led1Pin.Output().Name("Led1").Enable(),
led2Pin.Output().Name("Led2"),
led3Pin.Output().Name("Led3").Enable(),
led4Pin.Output().Name("Led4"),
led5Pin.Output().Name("Led5").Enable(),
led6Pin.Output().Name("Led6")
};
// Assign a behavior to the leds
var behavior = new ChaserBehavior(leds)
{
Loop = args.GetLoop(),
RoundTrip = args.GetRoundTrip(),
Width = args.GetWidth(),
Interval = TimeSpan.FromMilliseconds(args.GetSpeed())
};
// Alternate behaviors...
/*
var random = new Random();
var behavior = new PatternBehavior(leds, Enumerable.Range(0, 5).Select(i => random.Next(511)))
{
Loop = Helpers.GetLoop(args),
RoundTrip = Helpers.GetRoundTrip(args),
Interval = Helpers.GetSpeed(args)
};*/
/*
var behavior = new BlinkBehavior(leds)
{
Count = args.GetWidth(),
Interval = args.GetSpeed()
};*/
// Declare input (switchButton) interacting with the leds behavior
var switchButton = buttonPin.Input()
.Name("Switch")
.Revert()
.Switch()
.Enable()
.OnStatusChanged(b =>
{
behavior.RoundTrip = !behavior.RoundTrip;
Console.WriteLine("Button switched {0}", b ? "on" : "off");
});
// Create connection
var settings = new GpioConnectionSettings {Driver = driver};
using (var connection = new GpioConnection(settings, leds))
{
Console.WriteLine("Using {0}, frequency {1:0.##}hz", settings.Driver.GetType().Name, 1000.0/args.GetSpeed());
Thread.Sleep(1000);
connection.Add(switchButton);
connection.Start(behavior); // Starting the behavior automatically registers the pins to the connection, if needed.
Console.ReadKey(true);
connection.Stop(behavior);
}
}
/// <summary>
/// Removes the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
public void Remove(PinConfiguration configuration)
{
lock (pinConfigurations)
{
lock (timer)
{
if (IsOpened)
Release(configuration);
}
pinConfigurations.Remove(configuration.Pin);
if (!string.IsNullOrEmpty(configuration.Name))
namedPins.Remove(configuration.Name);
pinValues.Remove(configuration.Pin);
var pin = (ProcessorPins)((uint)1 << (int)configuration.Pin);
inputPins = inputPins & ~pin;
pinRawValues = pinRawValues & ~pin;
}
}
/// <summary>
/// Determines whether the connection contains the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
/// <returns>
/// <c>true</c> if the connection contains the specified pin; otherwise, <c>false</c>.
/// </returns>
public bool Contains(PinConfiguration configuration)
{
return(pinConfigurations.ContainsKey(configuration.Pin));
}
/// <summary>
/// Blinks the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
/// <param name="duration">The duration, in millisecond.</param>
public void Blink(PinConfiguration configuration, decimal duration = -1)
{
Toggle(configuration);
Sleep(duration);
Toggle(configuration);
}
/// <summary>
/// Toggles the specified pin.
/// </summary>
/// <param name="configuration">The pin configuration.</param>
public void Toggle(PinConfiguration configuration)
{
this[configuration] = !this[configuration];
}
private void Release(PinConfiguration configuration)
{
if (configuration.Direction == PinDirection.Output)
{
Driver.Write(configuration.Pin, false);
OnPinStatusChanged(new PinStatusEventArgs { Enabled = false, Configuration = configuration });
}
Driver.Release(configuration.Pin);
EventHandler<PinStatusEventArgs> handler;
if (pinEvents.TryGetValue(configuration.Pin, out handler))
{
PinStatusChanged -= handler;
pinEvents.Remove(configuration.Pin);
}
}
internal ConnectedPin(GpioConnection connection, PinConfiguration pinConfiguration)
{
this.connection = connection;
Configuration = pinConfiguration;
}
