/// <summary>
/// Initializes a new instance of the <see cref="Mcp23008OutputBinaryPin"/> class.
/// </summary>
/// <param name="connection">The connection.</param>
/// <param name="pin">The pin.</param>
/// <param name="resistor">The resistor.</param>
/// <param name="polarity">The polarity.</param>
public Mcp23008OutputBinaryPin(Mcp23008I2cConnection connection, Mcp23008Pin pin,
Mcp23008PinResistor resistor = Mcp23008PinResistor.None,
Mcp23008PinPolarity polarity = Mcp23008PinPolarity.Normal)
{
this.connection = connection;
this.pin = pin;
connection.SetDirection(pin, Mcp23008PinDirection.Output);
connection.SetResistor(pin, resistor);
connection.SetPolarity(pin, polarity);
}
/// <summary>
/// Initializes a new instance of the <see cref="Mcp23008InputBinaryPin"/> class.
/// </summary>
/// <param name="connection">The connection.</param>
/// <param name="pin">The pin.</param>
/// <param name="resistor">The resistor.</param>
/// <param name="polarity">The polarity.</param>
public Mcp23008InputBinaryPin(Mcp23008I2cConnection connection, Mcp23008Pin pin,
Mcp23008PinResistor resistor = Mcp23008PinResistor.None,
Mcp23008PinPolarity polarity = Mcp23008PinPolarity.Normal)
{
this.connection = connection;
this.pin = pin;
connection.SetDirection(pin, Mcp23008PinDirection.Input);
connection.SetResistor(pin, resistor);
connection.SetPolarity(pin, polarity);
}
/// <summary>
/// Sets the polarity.
/// </summary>
/// <param name="pin">The pin.</param>
/// <param name="polarity">The polarity.</param>
public void SetPolarity(Mcp23008Pin pin, Mcp23008PinPolarity polarity)
{
var register = Register.IPOL;
connection.WriteByte((byte)register);
var polarities = connection.ReadByte();
var bit = (byte)((int)pin & 0xFF);
var newPolarities = (polarity == Mcp23008PinPolarity.Inverted)
? polarities | bit
: polarities & ~bit;
connection.Write(new[] { (byte)register, (byte)newPolarities });
}
/// <summary>
/// Sets the polarity.
/// </summary>
/// <param name="pin">The pin.</param>
/// <param name="polarity">The polarity.</param>
public void SetPolarity(Mcp23008Pin pin, Mcp23008PinPolarity polarity)
{
var register = Register.Ipol;
this.connection.WriteByte((byte)register);
var polarities = this.connection.ReadByte();
var bit = (byte)((int)pin & 0xFF);
var newPolarities = polarity == Mcp23008PinPolarity.Inverted
? polarities | bit
: polarities & ~bit;
this.connection.Write((byte)register, (byte)newPolarities);
}
/// <summary>
/// Creates an input binary pin.
/// </summary>
/// <param name="connection">The connection.</param>
/// <param name="pin">The pin.</param>
/// <param name="resistor">The resistor.</param>
/// <param name="polarity">The polarity.</param>
/// <returns>The pin.</returns>
public static Mcp23008InputBinaryPin In(this Mcp23008I2cConnection connection, Mcp23008Pin pin, Mcp23008PinResistor resistor = Mcp23008PinResistor.None, Mcp23008PinPolarity polarity = Mcp23008PinPolarity.Normal)
{
return(new Mcp23008InputBinaryPin(connection, pin, resistor, polarity));
}
/// <summary>
/// Creates an output binary pin.
/// </summary>
/// <param name="connection">The connection.</param>
/// <param name="pin">The pin.</param>
/// <param name="resistor">The resistor.</param>
/// <param name="polarity">The polarity.</param>
/// <returns>The pin.</returns>
public static Mcp23008OutputBinaryPin Out(this Mcp23008I2cConnection connection, Mcp23008Pin pin, Mcp23008PinResistor resistor = Mcp23008PinResistor.None, Mcp23008PinPolarity polarity = Mcp23008PinPolarity.Normal)
{
return new Mcp23008OutputBinaryPin(connection, pin, resistor, polarity);
}
/// <summary>
/// Creates an output binary pin.
/// </summary>
/// <param name="connection">The connection.</param>
/// <param name="pin">The pin.</param>
/// <param name="resistor">The resistor.</param>
/// <param name="polarity">The polarity.</param>
/// <returns>The output pin.</returns>
public static Mcp23008OutputBinaryPin Out(this Mcp23008Device connection, Mcp23008Pin pin, Mcp23008PinResistor resistor = Mcp23008PinResistor.None, Mcp23008PinPolarity polarity = Mcp23008PinPolarity.Normal)
{
return(new Mcp23008OutputBinaryPin(connection, pin, resistor, polarity));
}
