protected GPIOPin(PinDirection direction, PhysicalPin pin)
{
Pin = pin;
Direction = direction;
ExportPin();
}
public GPIOPin RemapPin(PinDirection direction, PhysicalPin pin)
{
if (UsedPins.ContainsKey((uint)pin)) {
if (direction == UsedPins[(uint) pin].Direction) return UsedPins[(uint) pin];
UsedPins[(uint)pin].Dispose();
UsedPins.Remove((uint) pin);
}
return CreatePin(direction, pin);
}
public GPIOPin CreatePin(PinDirection direction, PhysicalPin pin)
{
if (UsedPins.ContainsKey((uint)pin)) {
if (direction == UsedPins[(uint) pin].Direction) return UsedPins[(uint) pin];
throw new Exception("Pin already in use. Use RemapPin() to remap the pin.");
}
GPIOPin returnPin;
if (direction == PinDirection.In) {
returnPin = new GPIOInputPin(pin);
} else {
returnPin = new GPIOOutputPin(pin);
}
UsedPins.Add((uint)returnPin.Pin, returnPin);
return returnPin;
}
public GPIOInputPin(PhysicalPin pin)
: base(PinDirection.In, pin)
{
}
public GPIOOutputPin CreateOutputPin(PhysicalPin pin)
{
return (GPIOOutputPin)CreatePin(PinDirection.Out, pin);
}
public GPIOInputPin CreateInputPin(PhysicalPin pin)
{
return (GPIOInputPin) CreatePin(PinDirection.In, pin);
}
public GPIOOutputPin(PhysicalPin pin)
: base(PinDirection.Out, pin)
{
}