Hardware/CPU/AMD0FCPU.cs
author moel.mich
Sun, 09 May 2010 16:22:13 +0000
changeset 110 411b72b73d8f
parent 109 70d0c3102424
child 122 3ef997c53b50
permissions -rw-r--r--
Refactored the hardware code and added the visitor pattern for operations on the computer/hardware/sensor/parameter tree.
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/*
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  Version: MPL 1.1/GPL 2.0/LGPL 2.1
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  The contents of this file are subject to the Mozilla Public License Version
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  1.1 (the "License"); you may not use this file except in compliance with
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  the License. You may obtain a copy of the License at
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  http://www.mozilla.org/MPL/
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  Software distributed under the License is distributed on an "AS IS" basis,
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  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  for the specific language governing rights and limitations under the License.
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  The Original Code is the Open Hardware Monitor code.
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  The Initial Developer of the Original Code is 
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  Michael Möller <m.moeller@gmx.ch>.
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  Portions created by the Initial Developer are Copyright (C) 2009-2010
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  the Initial Developer. All Rights Reserved.
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  Contributor(s):
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  Alternatively, the contents of this file may be used under the terms of
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  either the GNU General Public License Version 2 or later (the "GPL"), or
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  the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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  in which case the provisions of the GPL or the LGPL are applicable instead
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  of those above. If you wish to allow use of your version of this file only
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  under the terms of either the GPL or the LGPL, and not to allow others to
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  use your version of this file under the terms of the MPL, indicate your
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  decision by deleting the provisions above and replace them with the notice
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  and other provisions required by the GPL or the LGPL. If you do not delete
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  the provisions above, a recipient may use your version of this file under
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  the terms of any one of the MPL, the GPL or the LGPL.
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*/
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Diagnostics;
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using System.Text;
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namespace OpenHardwareMonitor.Hardware.CPU {
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  public class AMD0FCPU : Hardware, IHardware {
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    private string name;
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    private Image icon;
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    private int processorIndex;
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    private uint pciAddress;
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    private Sensor[] coreTemperatures;    
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    private Sensor totalLoad;
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    private Sensor[] coreLoads;
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    private CPULoad cpuLoad;
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    private const ushort PCI_AMD_VENDOR_ID = 0x1022;
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    private const ushort PCI_AMD_0FH_MISCELLANEOUS_DEVICE_ID = 0x1103;
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    private const uint THERMTRIP_STATUS_REGISTER = 0xE4;
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    private const byte THERM_SENSE_CORE_SEL_CPU0 = 0x4;
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    private const byte THERM_SENSE_CORE_SEL_CPU1 = 0x0;
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    public AMD0FCPU(int processorIndex, CPUID[][] cpuid) {
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      this.processorIndex = processorIndex;
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      this.name = cpuid[0][0].Name;
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      this.icon = Utilities.EmbeddedResources.GetImage("cpu.png");
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      int coreCount = cpuid.Length;      
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      totalLoad = new Sensor("CPU Total", 0, SensorType.Load, this);
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      float offset = -49.0f;
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      // AM2+ 65nm +21 offset
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      uint model = cpuid[0][0].Model;
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      if (model >= 0x69 && model != 0xc1 && model != 0x6c && model != 0x7c) 
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        offset += 21;
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      // check if processor supports a digital thermal sensor 
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      if (cpuid[0][0].ExtData.GetLength(0) > 7 && 
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        (cpuid[0][0].ExtData[7, 3] & 1) != 0) 
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      {
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        coreTemperatures = new Sensor[coreCount];
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        for (int i = 0; i < coreCount; i++) {
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          coreTemperatures[i] =
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            new Sensor("Core #" + (i + 1), i, null, SensorType.Temperature,
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              this, new ParameterDescription[] { 
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                new ParameterDescription("Offset", 
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                  "Temperature offset of the thermal sensor.\n" + 
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                  "Temperature = Value + Offset.", offset)
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          });
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        }
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      } else {
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        coreTemperatures = new Sensor[0];
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      }
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      coreLoads = new Sensor[coreCount];
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      for (int i = 0; i < coreCount; i++) 
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        coreLoads[i] = new Sensor("Core #" + (i + 1), i + 1,
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          SensorType.Load, this);     
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      cpuLoad = new CPULoad(cpuid);
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      if (cpuLoad.IsAvailable) {
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        foreach (Sensor sensor in coreLoads)
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          ActivateSensor(sensor);
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        ActivateSensor(totalLoad);
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      }
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      pciAddress = WinRing0.FindPciDeviceById(PCI_AMD_VENDOR_ID,
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        PCI_AMD_0FH_MISCELLANEOUS_DEVICE_ID, (byte)processorIndex);
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      Update();                   
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    }
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    public override string Name {
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      get { return name; }
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    }
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    public override Identifier Identifier {
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      get { return new Identifier("amdcpu", processorIndex.ToString()); }
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    }
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    public override Image Icon {
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      get { return icon; }
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    }
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    public override void Update() {
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      if (pciAddress != 0xFFFFFFFF) {
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        for (uint i = 0; i < coreTemperatures.Length; i++) {
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          if (WinRing0.WritePciConfigDwordEx(
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            pciAddress, THERMTRIP_STATUS_REGISTER,
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            i > 0 ? THERM_SENSE_CORE_SEL_CPU1 : THERM_SENSE_CORE_SEL_CPU0)) {
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            uint value;
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            if (WinRing0.ReadPciConfigDwordEx(
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              pciAddress, THERMTRIP_STATUS_REGISTER, out value)) {
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              coreTemperatures[i].Value = ((value >> 16) & 0xFF) + 
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                coreTemperatures[i].Parameters[0].Value;
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              ActivateSensor(coreTemperatures[i]);
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            } else {
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              DeactivateSensor(coreTemperatures[i]);
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            }
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          }
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        }
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      }
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      if (cpuLoad.IsAvailable) {
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        cpuLoad.Update();
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        for (int i = 0; i < coreLoads.Length; i++)
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          coreLoads[i].Value = cpuLoad.GetCoreLoad(i);
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        totalLoad.Value = cpuLoad.GetTotalLoad();
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      }
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    }   
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  }
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}