Hardware/CPU/AMD0FCPU.cs
author moel.mich
Wed, 03 Feb 2010 20:35:10 +0000
changeset 24 09ab31bee6bd
parent 14 51c2f209da6d
child 25 ff3e6edc7113
permissions -rw-r--r--
Release version 0.1.11. Added support for load percentage sensor type. Added load sensors for CPUs and ATI GPUs.
     1 /*
     2   
     3   Version: MPL 1.1/GPL 2.0/LGPL 2.1
     4 
     5   The contents of this file are subject to the Mozilla Public License Version
     6   1.1 (the "License"); you may not use this file except in compliance with
     7   the License. You may obtain a copy of the License at
     8  
     9   http://www.mozilla.org/MPL/
    10 
    11   Software distributed under the License is distributed on an "AS IS" basis,
    12   WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
    13   for the specific language governing rights and limitations under the License.
    14 
    15   The Original Code is the Open Hardware Monitor code.
    16 
    17   The Initial Developer of the Original Code is 
    18   Michael Möller <m.moeller@gmx.ch>.
    19   Portions created by the Initial Developer are Copyright (C) 2009-2010
    20   the Initial Developer. All Rights Reserved.
    21 
    22   Contributor(s):
    23 
    24   Alternatively, the contents of this file may be used under the terms of
    25   either the GNU General Public License Version 2 or later (the "GPL"), or
    26   the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
    27   in which case the provisions of the GPL or the LGPL are applicable instead
    28   of those above. If you wish to allow use of your version of this file only
    29   under the terms of either the GPL or the LGPL, and not to allow others to
    30   use your version of this file under the terms of the MPL, indicate your
    31   decision by deleting the provisions above and replace them with the notice
    32   and other provisions required by the GPL or the LGPL. If you do not delete
    33   the provisions above, a recipient may use your version of this file under
    34   the terms of any one of the MPL, the GPL or the LGPL.
    35  
    36 */
    37 
    38 using System;
    39 using System.Collections.Generic;
    40 using System.Drawing;
    41 using System.Diagnostics;
    42 using System.Text;
    43 
    44 
    45 namespace OpenHardwareMonitor.Hardware.CPU {
    46   public class AMD0FCPU : IHardware {
    47 
    48     private string name;
    49     private Image icon;
    50 
    51     private uint pciAddress;
    52 
    53     private Sensor[] coreTemperatures;
    54     private float offset;
    55 
    56     private Sensor totalLoad;
    57     private Sensor[] coreLoads;
    58 
    59     private List<ISensor> active = new List<ISensor>();
    60 
    61     private PerformanceCounter totalLoadCounter;
    62     private PerformanceCounter[] coreLoadCounters;
    63 
    64     private const ushort PCI_AMD_VENDOR_ID = 0x1022;
    65     private const ushort PCI_AMD_0FH_MISCELLANEOUS_DEVICE_ID = 0x1103;
    66     private const uint THERMTRIP_STATUS_REGISTER = 0xE4;
    67     private const byte THERM_SENSE_CORE_SEL_CPU0 = 0x2;
    68     private const byte THERM_SENSE_CORE_SEL_CPU1 = 0x0;
    69 
    70     public AMD0FCPU(string name, uint family, uint model, uint stepping, 
    71       uint[,] cpuidData, uint[,] cpuidExtData) {
    72       
    73       this.name = name;
    74       this.icon = Utilities.EmbeddedResources.GetImage("cpu.png");     
    75 
    76       uint coreCount = 1;
    77       if (cpuidExtData.GetLength(0) > 8)
    78         coreCount = (cpuidExtData[8, 2] & 0xFF) + 1;
    79 
    80       // max two cores
    81       coreCount = coreCount > 2 ? 2 : coreCount;
    82 
    83       totalLoadCounter = new PerformanceCounter();
    84       totalLoadCounter.CategoryName = "Processor";
    85       totalLoadCounter.CounterName = "% Processor Time";
    86       totalLoadCounter.InstanceName = "_Total";
    87       totalLoad = new Sensor("CPU Total", 0, SensorType.Load, this);
    88 
    89       coreLoadCounters = new PerformanceCounter[coreCount];
    90       coreLoads = new Sensor[coreCount];
    91       for (int i = 0; i < coreLoadCounters.Length; i++) {
    92         coreLoadCounters[i] = new PerformanceCounter();
    93         coreLoadCounters[i].CategoryName = "Processor";
    94         coreLoadCounters[i].CounterName = "% Processor Time";
    95         coreLoadCounters[i].InstanceName = i.ToString();
    96         coreLoads[i] = new Sensor("Core #" + (i + 1), i + 1,
    97           SensorType.Load, this);
    98       }        
    99 
   100       coreTemperatures = new Sensor[coreCount];
   101       for (int i = 0; i < coreCount; i++)
   102         coreTemperatures[i] = 
   103           new Sensor("Core #" + (i + 1), i, SensorType.Temperature, this);
   104 
   105       pciAddress = WinRing0.FindPciDeviceById(PCI_AMD_VENDOR_ID,
   106         PCI_AMD_0FH_MISCELLANEOUS_DEVICE_ID, 0);
   107 
   108       offset = -49.0f;
   109 
   110       // AM2+ 65nm +21 offset
   111       if (model >= 0x69 && model != 0xc1 && model != 0x6c && model != 0x7c) 
   112         offset += 21;
   113 
   114       Update();                   
   115     }
   116 
   117     public string Name {
   118       get { return name; }
   119     }
   120 
   121     public string Identifier {
   122       get { return "/amdcpu/0"; }
   123     }
   124 
   125     public Image Icon {
   126       get { return icon; }
   127     }
   128 
   129     public ISensor[] Sensors {
   130       get { return active.ToArray(); }
   131     }
   132 
   133     public string GetReport() {
   134       return null;
   135     }
   136 
   137     public void Update() {
   138       if (pciAddress == 0xFFFFFFFF)
   139         return;
   140 
   141       for (uint i = 0; i < coreTemperatures.Length; i++) {
   142         if (WinRing0.WritePciConfigDwordEx(
   143           pciAddress, THERMTRIP_STATUS_REGISTER,
   144           i > 0 ? THERM_SENSE_CORE_SEL_CPU1 : THERM_SENSE_CORE_SEL_CPU0)) {
   145           uint value;
   146           if (WinRing0.ReadPciConfigDwordEx(
   147             pciAddress, THERMTRIP_STATUS_REGISTER, out value)) {
   148             coreTemperatures[i].Value = ((value >> 16) & 0xFF) + offset;
   149             ActivateSensor(coreTemperatures[i]);
   150           } else {
   151             DeactivateSensor(coreTemperatures[i]);
   152           }
   153         }
   154       }
   155 
   156       totalLoad.Value = totalLoadCounter.NextValue();
   157       ActivateSensor(totalLoad);
   158 
   159       for (int i = 0; i < coreLoads.Length; i++) {
   160         coreLoads[i].Value = coreLoadCounters[i].NextValue();
   161         ActivateSensor(coreLoads[i]);
   162       }
   163     }
   164 
   165     private void ActivateSensor(Sensor sensor) {
   166       if (!active.Contains(sensor)) {
   167         active.Add(sensor);
   168         if (SensorAdded != null)
   169           SensorAdded(sensor);
   170       }
   171     }
   172 
   173     private void DeactivateSensor(Sensor sensor) {
   174       if (active.Contains(sensor)) {
   175         active.Remove(sensor);
   176         if (SensorRemoved != null)
   177           SensorRemoved(sensor);
   178       }
   179     }
   180 
   181     public event SensorEventHandler SensorAdded;
   182     public event SensorEventHandler SensorRemoved;
   183 
   184   }
   185 }