/// <inheritdoc/>
protected override void RemoveCallbackForPinValueChangedEvent(int pinNumber, PinChangeEventHandler callback)
{
_pinFallingHandlers[pinNumber] -= callback;
_pinRisingHandlers[pinNumber] -= callback;
if (_pinFallingHandlers == null)
{
_gpioTriggers[pinNumber] &= ~GpioTrigger.Falling;
}
if (_pinRisingHandlers == null)
{
_gpioTriggers[pinNumber] &= ~GpioTrigger.Rising;
}
FtFunction.FT4222_GPIO_SetInputTrigger(_ftHandle, (GpioPort)pinNumber, _gpioTriggers[pinNumber]);
}
/// <inheritdoc/>
protected override void AddCallbackForPinValueChangedEvent(int pinNumber, PinEventTypes eventTypes, PinChangeEventHandler callback)
{
if (eventTypes == PinEventTypes.None)
{
throw new ArgumentException($"{PinEventTypes.None} is an invalid value.", nameof(eventTypes));
}
if (eventTypes.HasFlag(PinEventTypes.Falling))
{
_gpioTriggers[pinNumber] |= GpioTrigger.Falling;
_pinFallingHandlers[pinNumber] += callback;
}
if (eventTypes.HasFlag(PinEventTypes.Rising))
{
_gpioTriggers[pinNumber] |= GpioTrigger.Rising;
_pinRisingHandlers[pinNumber] += callback;
}
FtFunction.FT4222_GPIO_SetInputTrigger(_ftHandle, (GpioPort)pinNumber, _gpioTriggers[pinNumber]);
}
