refactored utility namespace

FlippR-Driver/src/utility/GPIOInterface.cpp

@@ -0,0 +1,47 @@
+/*
+ * GPIOInterface.cpp
+ *
+ *  Created on: Jun 15, 2018
+ *      Author: Andreas Schneider, Johannes Wendel, Jonas Zeunert, Rafael Vinci, Dr. Franca Rupprecht
+ */
+
+#include "GPIOInterface.h"
+
+#include "config.h"
+
+#include "wiringPi/wiringPi.h"
+#include "json/json.hpp"
+
+namespace FlippR_Driver
+{
+namespace utility
+{
+
+std::once_flag GPIOInterface::GPIO_LIB_INITIALIZED;
+
+void GPIOInterface::initialize_input_pin(char address)
+{
+  pinMode(address, INPUT);
+}
+
+void GPIOInterface::write_pin(char address, char data)
+{
+  digitalWrite(address, data);
+}
+
+bool GPIOInterface::read_pin(char address)
+{
+  return PULLDOWN == digitalRead(address);
+}
+
+void GPIOInterface::initialize_output_pin(char address)
+{
+  pinMode(address, OUTPUT);
+}
+
+GPIOInterface::GPIOInterface()
+{
+  std::call_once(GPIO_LIB_INITIALIZED, wiringPiSetup);
+}
+}
+}