Added class for virtual pin on IO expander MCP23017.

Author: dhebbeker

robot-control-src/MCP23017Pin.cpp

@@ -0,0 +1,24 @@
+#include "MCP23017Pin.hpp"
+#include <MCP23017.h>
+
+MCP23017Pin::MCP23017Pin(MCP23017 &ioExpander, std::uint8_t const pin) :ioExpander(ioExpander), pin(pin) {
+}
+
+MCP23017Pin::~MCP23017Pin() {
+}
+
+int MCP23017Pin::read() {
+	return ioExpander.digitalRead(pin);
+}
+
+void MCP23017Pin::setMode(std::uint8_t const mode) {
+	setMode(mode, false);
+}
+
+void MCP23017Pin::setMode(std::uint8_t const mode, bool const inverted) {
+	ioExpander.pinMode(pin, mode, inverted);
+}
+
+void MCP23017Pin::write(std::uint8_t const value) {
+	ioExpander.digitalWrite(pin, value);
+}

robot-control-src/MCP23017Pin.hpp

@@ -0,0 +1,21 @@
+#ifndef MCP23017PIN_HPP_
+#define MCP23017PIN_HPP_
+
+#include "GpioInterface.hpp"
+
+class MCP23017;
+
+class MCP23017Pin: public GpioInterface {
+public:
+	MCP23017Pin(MCP23017& ioExpander, const std::uint8_t pin);
+	virtual ~MCP23017Pin();
+	virtual int read() override;
+	virtual void setMode(const std::uint8_t mode) override;
+	void setMode(const std::uint8_t mode, const bool inverted);
+	virtual void write(const std::uint8_t value) override;
+private:
+	MCP23017& ioExpander;
+	const std::uint8_t pin;
+};
+
+#endif /* MCP23017PIN_HPP_ */