Raspberry.IO.InterIntegratedCircuit.I2cDriver.GetBscBase C# (CSharp) Method

        private static uint GetBscBase(ProcessorPin sdaPin, ProcessorPin sclPin)
        {
            switch (GpioConnectionSettings.ConnectorPinout)
            {
                case ConnectorPinout.Rev1:
                    if (sdaPin == ProcessorPin.Pin0 && sclPin == ProcessorPin.Pin1)
                    return Interop.BCM2835_BSC0_BASE;
                    throw new InvalidOperationException("No I2C device exist on the specified pins");

                case ConnectorPinout.Rev2:
                    if (sdaPin == ProcessorPin.Pin28 && sclPin == ProcessorPin.Pin29)
                        return Interop.BCM2835_BSC0_BASE;
                    if (sdaPin == ProcessorPin.Pin2 && sclPin == ProcessorPin.Pin3)
                        return Interop.BCM2835_BSC1_BASE;
                    throw new InvalidOperationException("No I2C device exist on the specified pins");

                case ConnectorPinout.Plus:
                    if (sdaPin == ProcessorPin.Pin2 && sclPin == ProcessorPin.Pin3)
                        return GetProcessorBscAddress(Board.Current.Processor);
                    throw new InvalidOperationException("No I2C device exist on the specified pins");

                default:
                    throw new NotSupportedException(string.Format(CultureInfo.InvariantCulture, "Connector pinout {0} is not supported", GpioConnectionSettings.ConnectorPinout));
            }
        }