diff -r 77e062628ef5 -r 361e324a0ed4 Hardware/LPC/IT87.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Hardware/LPC/IT87.cs	Tue Jan 26 22:37:48 2010 +0000
@@ -0,0 +1,225 @@
+/*
+  
+  Version: MPL 1.1/GPL 2.0/LGPL 2.1
+
+  The contents of this file are subject to the Mozilla Public License Version
+  1.1 (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+ 
+  http://www.mozilla.org/MPL/
+
+  Software distributed under the License is distributed on an "AS IS" basis,
+  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+  for the specific language governing rights and limitations under the License.
+
+  The Original Code is the Open Hardware Monitor code.
+
+  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
+  the Initial Developer. All Rights Reserved.
+
+  Contributor(s):
+
+  Alternatively, the contents of this file may be used under the terms of
+  either the GNU General Public License Version 2 or later (the "GPL"), or
+  the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+  in which case the provisions of the GPL or the LGPL are applicable instead
+  of those above. If you wish to allow use of your version of this file only
+  under the terms of either the GPL or the LGPL, and not to allow others to
+  use your version of this file under the terms of the MPL, indicate your
+  decision by deleting the provisions above and replace them with the notice
+  and other provisions required by the GPL or the LGPL. If you do not delete
+  the provisions above, a recipient may use your version of this file under
+  the terms of any one of the MPL, the GPL or the LGPL.
+ 
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Text;
+
+namespace OpenHardwareMonitor.Hardware.LPC {
+  public class IT87 : IHardware {
+
+    private string name;
+    private Image icon;
+        
+    private bool available = false;
+    private Chip chip;
+    private ushort address;
+
+    private Sensor[] temperatures;
+    private Sensor[] fans;
+    private Sensor[] voltages;
+    private List<ISensor> active = new List<ISensor>();
+    private float[] voltageGains;
+
+   
+    // Consts
+    private const byte ITE_VENDOR_ID = 0x90;
+       
+    // Environment Controller
+    private const byte ADDRESS_REGISTER_OFFSET = 0x05;
+    private const byte DATA_REGISTER_OFFSET = 0x06;
+
+    // Environment Controller Registers    
+    private const byte CONFIGURATION_REGISTER = 0x00;
+    private const byte TEMPERATURE_BASE_REG = 0x29;
+    private const byte VENDOR_ID_REGISTER = 0x58;
+    private const byte FAN_TACHOMETER_16_BIT_ENABLE_REGISTER = 0x0c;
+    private byte[] FAN_TACHOMETER_REG = 
+      new byte[] { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };
+    private byte[] FAN_TACHOMETER_EXT_REG =
+      new byte[] { 0x18, 0x19, 0x1a, 0x81, 0x83 };
+    private const byte VOLTAGE_BASE_REG = 0x20;  
+    
+
+    private byte ReadByte(byte register) {
+      WinRing0.WriteIoPortByte(
+        (ushort)(address + ADDRESS_REGISTER_OFFSET), register);
+      return WinRing0.ReadIoPortByte((ushort)(address + DATA_REGISTER_OFFSET));
+    }
+
+    public IT87(Chip chip, ushort address) {
+      
+      this.chip = chip;
+      this.address = address;
+
+      switch (chip) {
+        case Chip.IT8716F: name = "ITE IT8716F"; break;
+        case Chip.IT8718F: name = "ITE IT8718F"; break;
+        case Chip.IT8720F: name = "ITE IT8720F"; break;
+        case Chip.IT8726F: name = "ITE IT8726F"; break;
+        default: return;
+      }
+      
+      // Check vendor id
+      byte vendorId = ReadByte(VENDOR_ID_REGISTER);      
+      if (vendorId != ITE_VENDOR_ID)
+        return;
+
+      // Bit 0x10 of the configuration register should always be 1
+      if ((ReadByte(CONFIGURATION_REGISTER) & 0x10) == 0)
+        return;
+
+      temperatures = new Sensor[3];
+      for (int i = 0; i < temperatures.Length; i++) 
+        temperatures[i] = new Sensor("Temperature #" + (i + 1), i,
+          SensorType.Temperature, this);
+
+      fans = new Sensor[4];
+      for (int i = 0; i < fans.Length; i++)
+        fans[i] = new Sensor("Fan #" + (i + 1), i, SensorType.Fan, this);
+
+      voltageGains = new float[] { 
+        1, 1, 1, (6.8f / 10 + 1), 1, 1, 1, 1, 1 };
+
+      voltages = new Sensor[2];
+      voltages[0] = new Sensor("CPU VCore", 0, SensorType.Voltage, this);
+      voltages[1] = new Sensor("Battery", 8, SensorType.Voltage, this);           
+
+      available = true;
+      icon = Utilities.EmbeddedResources.GetImage("chip.png");
+    }
+
+    public bool IsAvailable {
+      get { return available; } 
+    }
+
+    public string Name {
+      get { return name; }
+    }
+
+    public string Identifier {
+      get { return "/lpc/it87"; }
+    }
+
+    public Image Icon {
+      get { return icon; }
+    }
+
+    public ISensor[] Sensors {
+      get { return active.ToArray(); }
+    }
+
+    public string GetReport() {
+      StringBuilder r = new StringBuilder();
+
+      r.AppendLine("LPC IT87");
+      r.AppendLine();
+      r.Append("Chip ID: 0x"); r.AppendLine(chip.ToString("X"));
+      r.Append("Chip Name: "); r.AppendLine(name);
+      r.Append("Base Address: 0x"); r.AppendLine(address.ToString("X"));
+      r.AppendLine();
+      r.AppendLine("Environment Controller Registers");
+      r.AppendLine();
+
+      r.AppendLine("      00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F");
+      r.AppendLine();
+      for (int i = 0; i <= 0xA; i++) {
+        r.Append(" "); r.Append((i << 4).ToString("X2")); r.Append("  ");
+        for (int j = 0; j <= 0xF; j++) {
+          r.Append(" ");
+          r.Append(ReadByte((byte)((i << 4) | j)).ToString("X2"));
+        }
+        r.AppendLine();
+      }
+      r.AppendLine();
+
+      return r.ToString();
+    }
+
+    public void Update() {
+
+      foreach (Sensor sensor in voltages) {
+        int value = ReadByte((byte)(VOLTAGE_BASE_REG + sensor.Index));
+        sensor.Value = voltageGains[sensor.Index] * 0.001f * (value << 4);
+        if (sensor.Value > 0)
+          ActivateSensor(sensor);
+        else
+          DeactivateSensor(sensor);
+      }
+
+      foreach (Sensor sensor in temperatures) {
+        int value = ReadByte((byte)(TEMPERATURE_BASE_REG + sensor.Index));
+        sensor.Value = value;
+        if (value < 254)
+          ActivateSensor(sensor);
+        else
+          DeactivateSensor(sensor);
+      }
+
+      foreach (Sensor sensor in fans) {
+        int value = ReadByte(FAN_TACHOMETER_REG[sensor.Index]);
+        value |= ReadByte(FAN_TACHOMETER_EXT_REG[sensor.Index]) << 8;
+
+        if (value > 0) {
+          sensor.Value = (value < 0xffff) ? 1.35e6f / ((value) * 2) : 0;
+          ActivateSensor(sensor);
+        } else {
+          DeactivateSensor(sensor);
+        }
+      }      
+    }
+
+    private void ActivateSensor(Sensor sensor) {
+      if (!active.Contains(sensor)) {
+        active.Add(sensor);
+        SensorAdded(sensor);
+      }
+    }
+
+    private void DeactivateSensor(Sensor sensor) {
+      if (active.Contains(sensor)) {
+        active.Remove(sensor);
+        SensorRemoved(sensor);
+      }
+    }
+
+    public event SensorEventHandler SensorAdded;
+    public event SensorEventHandler SensorRemoved;
+
+  }
+}