Hardware/CPU/AMD0FCPU.cs
author moel.mich
Mon, 08 Mar 2010 20:05:51 +0000
changeset 77 c71d4cd5f29c
parent 63 1a7c13ac7348
child 90 3333b29a1746
permissions -rw-r--r--
Fixed Issue 12.
     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 : Hardware, IHardware {
    47 
    48     private string name;
    49     private Image icon;
    50 
    51     private uint pciAddress;
    52 
    53     private Sensor[] coreTemperatures;    
    54 
    55     private Sensor totalLoad;
    56     private Sensor[] coreLoads;
    57 
    58     private CPULoad cpuLoad;
    59 
    60     private const ushort PCI_AMD_VENDOR_ID = 0x1022;
    61     private const ushort PCI_AMD_0FH_MISCELLANEOUS_DEVICE_ID = 0x1103;
    62     private const uint THERMTRIP_STATUS_REGISTER = 0xE4;
    63     private const byte THERM_SENSE_CORE_SEL_CPU0 = 0x4;
    64     private const byte THERM_SENSE_CORE_SEL_CPU1 = 0x0;
    65 
    66     public AMD0FCPU(string name, uint family, uint model, uint stepping, 
    67       uint[,] cpuidData, uint[,] cpuidExtData) {
    68       
    69       this.name = name;
    70       this.icon = Utilities.EmbeddedResources.GetImage("cpu.png");     
    71 
    72       uint coreCount = 1;
    73       if (cpuidExtData.GetLength(0) > 8)
    74         coreCount = (cpuidExtData[8, 2] & 0xFF) + 1;
    75 
    76       // max two cores
    77       coreCount = coreCount > 2 ? 2 : coreCount;
    78 
    79       totalLoad = new Sensor("CPU Total", 0, SensorType.Load, this);
    80         
    81       float offset = -49.0f;
    82 
    83       // AM2+ 65nm +21 offset
    84       if (model >= 0x69 && model != 0xc1 && model != 0x6c && model != 0x7c) 
    85         offset += 21;
    86 
    87       coreTemperatures = new Sensor[coreCount];
    88       coreLoads = new Sensor[coreCount];
    89       for (int i = 0; i < coreCount; i++) {
    90         coreTemperatures[i] =
    91           new Sensor("Core #" + (i + 1), i, null, SensorType.Temperature, this,
    92             new ParameterDescription[] { new ParameterDescription("Offset", 
    93               "Temperature offset of the thermal sensor.\n" + 
    94               "Temperature = Value + Offset.", offset)
    95           });
    96         coreLoads[i] = new Sensor("Core #" + (i + 1), i + 1,
    97           SensorType.Load, this);
    98       }
    99 
   100       cpuLoad = new CPULoad(coreCount, 1);
   101       if (cpuLoad.IsAvailable) {
   102         foreach (Sensor sensor in coreLoads)
   103           ActivateSensor(sensor);
   104         ActivateSensor(totalLoad);
   105       }
   106 
   107       pciAddress = WinRing0.FindPciDeviceById(PCI_AMD_VENDOR_ID,
   108         PCI_AMD_0FH_MISCELLANEOUS_DEVICE_ID, 0);
   109 
   110       Update();                   
   111     }
   112 
   113     public string Name {
   114       get { return name; }
   115     }
   116 
   117     public string Identifier {
   118       get { return "/amdcpu/0"; }
   119     }
   120 
   121     public Image Icon {
   122       get { return icon; }
   123     }
   124 
   125     public string GetReport() {
   126       return null;
   127     }
   128 
   129     public void Update() {
   130       if (pciAddress != 0xFFFFFFFF) {
   131 
   132         for (uint i = 0; i < coreTemperatures.Length; i++) {
   133           if (WinRing0.WritePciConfigDwordEx(
   134             pciAddress, THERMTRIP_STATUS_REGISTER,
   135             i > 0 ? THERM_SENSE_CORE_SEL_CPU1 : THERM_SENSE_CORE_SEL_CPU0)) {
   136             uint value;
   137             if (WinRing0.ReadPciConfigDwordEx(
   138               pciAddress, THERMTRIP_STATUS_REGISTER, out value)) {
   139               coreTemperatures[i].Value = ((value >> 16) & 0xFF) + 
   140                 coreTemperatures[i].Parameters[0].Value;
   141               ActivateSensor(coreTemperatures[i]);
   142             } else {
   143               DeactivateSensor(coreTemperatures[i]);
   144             }
   145           }
   146         }
   147       }
   148 
   149       if (cpuLoad.IsAvailable) {
   150         cpuLoad.Update();
   151         for (int i = 0; i < coreLoads.Length; i++)
   152           coreLoads[i].Value = cpuLoad.GetCoreLoad(i);
   153         totalLoad.Value = cpuLoad.GetTotalLoad();
   154       }
   155     }   
   156   }
   157 }