moel@1: /*
moel@1:   
moel@1:   Version: MPL 1.1/GPL 2.0/LGPL 2.1
moel@1: 
moel@1:   The contents of this file are subject to the Mozilla Public License Version
moel@1:   1.1 (the "License"); you may not use this file except in compliance with
moel@1:   the License. You may obtain a copy of the License at
moel@1:  
moel@1:   http://www.mozilla.org/MPL/
moel@1: 
moel@1:   Software distributed under the License is distributed on an "AS IS" basis,
moel@1:   WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
moel@1:   for the specific language governing rights and limitations under the License.
moel@1: 
moel@1:   The Original Code is the Open Hardware Monitor code.
moel@1: 
moel@1:   The Initial Developer of the Original Code is 
moel@1:   Michael Möller <m.moeller@gmx.ch>.
moel@1:   Portions created by the Initial Developer are Copyright (C) 2009-2010
moel@1:   the Initial Developer. All Rights Reserved.
moel@1: 
moel@1:   Contributor(s):
moel@1: 
moel@1:   Alternatively, the contents of this file may be used under the terms of
moel@1:   either the GNU General Public License Version 2 or later (the "GPL"), or
moel@1:   the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
moel@1:   in which case the provisions of the GPL or the LGPL are applicable instead
moel@1:   of those above. If you wish to allow use of your version of this file only
moel@1:   under the terms of either the GPL or the LGPL, and not to allow others to
moel@1:   use your version of this file under the terms of the MPL, indicate your
moel@1:   decision by deleting the provisions above and replace them with the notice
moel@1:   and other provisions required by the GPL or the LGPL. If you do not delete
moel@1:   the provisions above, a recipient may use your version of this file under
moel@1:   the terms of any one of the MPL, the GPL or the LGPL.
moel@1:  
moel@1: */
moel@1: 
moel@1: using System;
moel@1: using System.Collections.Generic;
moel@1: using System.Drawing;
moel@1: using System.Reflection;
moel@1: using System.Text;
moel@1: 
moel@1: namespace OpenHardwareMonitor.Hardware.CPU {
moel@1:   public class IntelCPU : IHardware {
moel@1: 
moel@1:     private string name;
moel@1:     private Image icon;
moel@1: 
moel@1:     private Sensor[] coreTemperatures;
moel@1: 
moel@1:     private float tjMax = 0;   
moel@1: 
moel@1:     private const uint IA32_THERM_STATUS_MSR = 0x019C;
moel@1: 
moel@1:     public IntelCPU(string name, uint family, uint model, uint stepping, 
moel@1:       uint[,] cpuidData, uint[,] cpuidExtData) {
moel@1:       
moel@1:       this.name = name;
moel@1:       this.icon = Utilities.EmbeddedResources.GetImage("cpu.png");
moel@1:       
moel@1:       uint coreCount = 1;
moel@1:       if (cpuidData.GetLength(0) > 4)
moel@1:         coreCount = ((cpuidData[4, 0] >> 26) & 0x3F) + 1;
moel@1: 
moel@1:       switch (family) {
moel@1:         case 0x06: {
moel@1:           switch (model) {
moel@1:             case 0x0F: // Intel Core 65nm
moel@1:               switch (stepping) {
moel@1:                 case 0x06: // B2
moel@1:                   switch (coreCount) {
moel@1:                     case 2:
moel@1:                       tjMax = 80; break;
moel@1:                     case 4:
moel@1:                       tjMax = 90; break;
moel@1:                     default:
moel@1:                       tjMax = 85; break;
moel@1:                   }
moel@1:                   tjMax = 80; break;
moel@1:                 case 0x0B: // G0
moel@1:                   tjMax = 90; break;
moel@1:                 case 0x0D: // M0
moel@1:                   tjMax = 85; break;
moel@1:                 default:
moel@1:                   tjMax = 85; break;
moel@1:               } break;
moel@1:             case 0x1c: // Intel Atom 
moel@1:               tjMax = 90; break;
moel@1:             case 0x17: // Intel Core 45nm
moel@1:               tjMax = 100; break;
moel@1:             default:
moel@1:               tjMax = 100; break;
moel@1:           }
moel@1:         } break;
moel@1:         default: tjMax = 100; break;
moel@1:       }
moel@1: 
moel@1:       coreTemperatures = new Sensor[coreCount];
moel@1:       for (int i = 0; i < coreTemperatures.Length; i++)
moel@1:         coreTemperatures[i] =
moel@1:           new Sensor("Core #" + (i + 1), i, tjMax, SensorType.Temperature, 
moel@1:             this);
moel@1: 
moel@1:       Update();                   
moel@1:     }
moel@1: 
moel@1:     public string Name {
moel@1:       get { return name; }
moel@1:     }
moel@1: 
moel@1:     public string Identifier {
moel@1:       get { return "/intelcpu/0"; }
moel@1:     }
moel@1: 
moel@1:     public Image Icon {
moel@1:       get { return icon; }
moel@1:     }
moel@1: 
moel@1:     public ISensor[] Sensors {
moel@1:       get {
moel@1:         return coreTemperatures;
moel@1:       }
moel@1:     }
moel@1: 
moel@1:     public string GetReport() {
moel@1:       return null;
moel@1:     }
moel@1: 
moel@1:     public void Update() {
moel@1: 
moel@1:       uint eax = 0, edx = 0;      
moel@1:       for (int i = 0; i < coreTemperatures.Length; i++) {
moel@1:         if (WinRing0.RdmsrPx(
moel@1:           IA32_THERM_STATUS_MSR, ref eax, ref edx, (UIntPtr)(1 << i))) 
moel@1:         {
moel@1:           // if reading is valid
moel@1:           if ((eax & 0x80000000) != 0) {
moel@1:             // get the dist from tjMax from bits 22:16
moel@1:             coreTemperatures[i].Value = tjMax - ((eax & 0x007F0000) >> 16);
moel@1:           }
moel@1:         }        
moel@1:       }  
moel@1:     }
moel@1: 
moel@1:     #pragma warning disable 67
moel@1:     public event SensorEventHandler SensorAdded;
moel@1:     public event SensorEventHandler SensorRemoved;
moel@1:     #pragma warning restore 67
moel@1:   }
moel@1: }