Added support for Intel CPU power sensors (package and cores).

GUI/HardwareNode.cs

@@ -65,6 +65,7 @@ namespace OpenHardwareMonitor.GUI {
       typeNodes.Add(new TypeNode(SensorType.Flow));
       typeNodes.Add(new TypeNode(SensorType.Control));
       typeNodes.Add(new TypeNode(SensorType.Level));
+      typeNodes.Add(new TypeNode(SensorType.Power));
 
       foreach (ISensor sensor in hardware.Sensors)
         SensorAdded(sensor);

GUI/SensorNode.cs

@@ -16,7 +16,7 @@
 
   The Initial Developer of the Original Code is 
   Michael Möller <m.moeller@gmx.ch>.
-  Portions created by the Initial Developer are Copyright (C) 2009-2010
+  Portions created by the Initial Developer are Copyright (C) 2009-2011
   the Initial Developer. All Rights Reserved.
 
   Contributor(s):
@@ -75,6 +75,7 @@ namespace OpenHardwareMonitor.GUI {
         case SensorType.Flow: format = "{0:F0} L/h"; break;
         case SensorType.Control: format = "{0:F1} %"; break;
         case SensorType.Level: format = "{0:F1} %"; break;
+        case SensorType.Power: format = "{0:F1} W"; break;
       }
 
       bool hidden = settings.GetValue(new Identifier(sensor.Identifier, 

GUI/SensorNotifyIcon.cs

@@ -16,7 +16,7 @@
 
   The Initial Developer of the Original Code is 
   Michael Möller <m.moeller@gmx.ch>.
-  Portions created by the Initial Developer are Copyright (C) 2009-2010
+  Portions created by the Initial Developer are Copyright (C) 2009-2011
   the Initial Developer. All Rights Reserved.
 
   Contributor(s):
@@ -196,6 +196,8 @@ namespace OpenHardwareMonitor.GUI {
           return string.Format("{0:F0}", sensor.Value);
         case SensorType.Level:
           return string.Format("{0:F0}", sensor.Value);
+        case SensorType.Power:
+          return string.Format("{0:F0}", sensor.Value);
       }
       return "-";
     }
@@ -283,6 +285,7 @@ namespace OpenHardwareMonitor.GUI {
         case SensorType.Flow: format = "\n{0}: {1:F0} L/h"; break;
         case SensorType.Control: format = "\n{0}: {1:F1} %"; break;
         case SensorType.Level: format = "\n{0}: {1:F1} %"; break;
+        case SensorType.Power: format = "\n{0}: {1:F0} W"; break;
       }
       string formattedValue = string.Format(format, sensor.Name, sensor.Value);
       string hardwareName = sensor.Hardware.Name;

GUI/TypeNode.cs

@@ -16,7 +16,7 @@
 
   The Initial Developer of the Original Code is 
   Michael Möller <m.moeller@gmx.ch>.
-  Portions created by the Initial Developer are Copyright (C) 2009-2010
+  Portions created by the Initial Developer are Copyright (C) 2009-2011
   the Initial Developer. All Rights Reserved.
 
   Contributor(s):
@@ -80,6 +80,10 @@ namespace OpenHardwareMonitor.GUI {
           this.Image = Utilities.EmbeddedResources.GetImage("level.png");
           this.Text = "Levels";
           break;
+        case SensorType.Power:
+          this.Image = Utilities.EmbeddedResources.GetImage("power.png");
+          this.Text = "Powers";
+          break;
       }
 
       NodeAdded += new NodeEventHandler(TypeNode_NodeAdded);

Hardware/CPU/IntelCPU.cs

@@ -55,6 +55,8 @@ namespace OpenHardwareMonitor.Hardware.CPU {
     private readonly Sensor packageTemperature;
     private readonly Sensor[] coreClocks;
     private readonly Sensor busClock;
+    private readonly Sensor packagePower;
+    private readonly Sensor coresPower;
 
     private readonly Microarchitecture microarchitecture;
     private readonly double timeStampCounterMultiplier;
@@ -64,6 +66,17 @@ namespace OpenHardwareMonitor.Hardware.CPU {
     private const uint IA32_PERF_STATUS = 0x0198;
     private const uint MSR_PLATFORM_INFO = 0xCE;
     private const uint IA32_PACKAGE_THERM_STATUS = 0x1B1;
+    private const uint MSR_RAPL_POWER_UNIT = 0x606;
+    private const uint MSR_PKG_ENERY_STATUS = 0x611;
+    private const uint MSR_PP0_ENERY_STATUS = 0x639;
+
+    private float energyUnitMultiplier = 0;
+    private DateTime lastPackageTime;
+    private uint lastPackageEnergyConsumed;
+    private DateTime lastCoresTime;
+    private uint lastCoresEnergyConsumed;
+
+
 
     private float[] Floats(float f) {
       float[] result = new float[coreCount];
@@ -242,6 +255,33 @@ namespace OpenHardwareMonitor.Hardware.CPU {
           ActivateSensor(coreClocks[i]);
       }
 
+      if (microarchitecture == Microarchitecture.SandyBridge) {
+        uint eax, edx;
+        if (Ring0.Rdmsr(MSR_RAPL_POWER_UNIT, out eax, out edx))
+          energyUnitMultiplier = 1.0f / (1 << (int)((eax >> 8) & 0x1FF));
+
+
+        if (energyUnitMultiplier != 0 && 
+          Ring0.Rdmsr(MSR_PKG_ENERY_STATUS, out eax, out edx)) 
+        {
+          lastPackageTime = DateTime.UtcNow;
+          lastPackageEnergyConsumed = eax;
+          packagePower = new Sensor("CPU Package", 0, SensorType.Power, this, 
+            settings);          
+          ActivateSensor(packagePower);
+        }
+
+        if (energyUnitMultiplier != 0 &&
+          Ring0.Rdmsr(MSR_PP0_ENERY_STATUS, out eax, out edx)) 
+        {
+          lastCoresTime = DateTime.UtcNow;
+          lastCoresEnergyConsumed = eax;
+          coresPower = new Sensor("CPU Cores", 1, SensorType.Power, this,
+            settings);
+          ActivateSensor(coresPower);
+        }
+      }
+
       Update();
     }
 
@@ -251,7 +291,10 @@ namespace OpenHardwareMonitor.Hardware.CPU {
         IA32_PERF_STATUS ,
         IA32_THERM_STATUS_MSR,
         IA32_TEMPERATURE_TARGET,
-        IA32_PACKAGE_THERM_STATUS
+        IA32_PACKAGE_THERM_STATUS,
+        MSR_RAPL_POWER_UNIT,
+        MSR_PKG_ENERY_STATUS,
+        MSR_PP0_ENERY_STATUS
       };
     }
 
@@ -340,6 +383,37 @@ namespace OpenHardwareMonitor.Hardware.CPU {
           ActivateSensor(this.busClock);
         }
       }
+
+
+      if (packagePower != null) {
+        uint eax, edx;
+        if (Ring0.Rdmsr(MSR_PKG_ENERY_STATUS, out eax, out edx)) {
+          DateTime time = DateTime.UtcNow;    
+          uint energyConsumed = eax;
+          float deltaTime = (float)(time - lastPackageTime).TotalSeconds;
+          if (deltaTime > 0.01) {
+            packagePower.Value = energyUnitMultiplier * 
+              unchecked(energyConsumed - lastPackageEnergyConsumed) / deltaTime;
+            lastPackageTime = time;
+            lastPackageEnergyConsumed = energyConsumed;
+          }
+        }         
+      }
+
+      if (coresPower != null) {
+        uint eax, edx;
+        if (Ring0.Rdmsr(MSR_PP0_ENERY_STATUS, out eax, out edx)) {
+          DateTime time = DateTime.UtcNow;
+          uint energyConsumed = eax;
+          float deltaTime = (float)(time - lastCoresTime).TotalSeconds;
+          if (deltaTime > 0.01) {
+            coresPower.Value = energyUnitMultiplier *
+              unchecked(energyConsumed - lastCoresEnergyConsumed) / deltaTime;
+            lastCoresTime = time;
+            lastCoresEnergyConsumed = energyConsumed;
+          }
+        }
+      }
     }
   }
 }

Hardware/ISensor.cs

@@ -16,7 +16,7 @@
 
   The Initial Developer of the Original Code is 
   Michael Möller <m.moeller@gmx.ch>.
-  Portions created by the Initial Developer are Copyright (C) 2009-2010
+  Portions created by the Initial Developer are Copyright (C) 2009-2011
   the Initial Developer. All Rights Reserved.
 
   Contributor(s):
@@ -49,7 +49,8 @@ namespace OpenHardwareMonitor.Hardware {
     Fan,
     Flow,
     Control,
-    Level
+    Level,
+    Power
   }
 
   public struct SensorValue {

OpenHardwareMonitor.csproj

@@ -217,6 +217,9 @@
   <ItemGroup>
     <EmbeddedResource Include="Resources\level.png" />
   </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="Resources\power.png" />
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ProjectExtensions>
     <VisualStudio AllowExistingFolder="true" />