Support for the CAN power distribution panel

Change-Id: If4f8f7f050bf1095221cf16f030a6a8a67532656

wpilibc/lib/PowerDistributionPanel.cpp

@@ -0,0 +1,71 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2014. All Rights Reserved.							  */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in $(WIND_BASE)/WPILib.  */
+/*----------------------------------------------------------------------------*/
+
+#include "PowerDistributionPanel.h"
+#include "WPIErrors.h"
+#include "HAL/PDP.hpp"
+
+/**
+ * Initialize the PDP.
+ */
+PowerDistributionPanel::PowerDistributionPanel() {
+}
+
+/**
+ * @return The voltage of the PDP
+ */
+double
+PowerDistributionPanel::GetVoltage() {
+	int32_t status = 0;
+	
+	double voltage = getPDPVoltage(&status);
+	
+	if(status) {
+		wpi_setWPIErrorWithContext(Timeout, "");
+	}
+	
+	return voltage;
+}
+
+/**
+ * @return The temperature of the PDP in degrees Celsius
+ */
+double
+PowerDistributionPanel::GetTemperature() {
+	int32_t status = 0;
+	
+	double temperature = getPDPTemperature(&status);
+	
+	if(status) {
+		wpi_setWPIErrorWithContext(Timeout, "");
+	}
+	
+	return temperature;
+}
+
+/**
+ * @return The current of one of the PDP channels (channels 1-16) in Amperes
+ */
+double
+PowerDistributionPanel::GetCurrent(uint8_t channel) {
+	int32_t status = 0;
+	
+	if(!CheckPDPChannel(channel))
+	{
+		char buf[64];
+		snprintf(buf, 64, "PDP Channel %d", channel);
+		wpi_setWPIErrorWithContext(ChannelIndexOutOfRange, buf);
+	}
+	
+	double current = getPDPChannelCurrent(channel, &status);
+	
+	if(status) {
+		wpi_setWPIErrorWithContext(Timeout, "");
+	}
+	
+	return current;
+}
+