/*

   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.Globalization;

 using System.Diagnostics;

 using System.Text;

 namespace OpenHardwareMonitor.Hardware.CPU {

   internal sealed class AMD10CPU : Hardware, IHardware {

     private string name;

     private int processorIndex;

     private uint pciAddress;

     private Sensor coreTemperature;

     private Sensor totalLoad;

     private Sensor[] coreLoads;

     private CPULoad cpuLoad;

     private const ushort PCI_AMD_VENDOR_ID = 0x1022;

     private const ushort PCI_AMD_10H_MISCELLANEOUS_DEVICE_ID = 0x1203;

     private const ushort PCI_AMD_11H_MISCELLANEOUS_DEVICE_ID = 0x1303;

     private const uint REPORTED_TEMPERATURE_CONTROL_REGISTER = 0xA4;

     public AMD10CPU(int processorIndex, CPUID[][] cpuid, ISettings settings) {

       this.processorIndex = processorIndex;

       this.name = cpuid[0][0].Name;

       int coreCount = cpuid.Length;

       totalLoad = new Sensor("CPU Total", 0, SensorType.Load, this, settings);

       coreLoads = new Sensor[coreCount];

       for (int i = 0; i < coreCount; i++) 

         coreLoads[i] = new Sensor("Core #" + (i + 1), i + 1,

           SensorType.Load, this, settings);

       cpuLoad = new CPULoad(cpuid);

       if (cpuLoad.IsAvailable) {

         foreach (Sensor sensor in coreLoads)

           ActivateSensor(sensor);

         ActivateSensor(totalLoad);

       }    

       // AMD family 10h processors support only one temperature sensor

       coreTemperature = new Sensor(

         "Core" + (coreCount > 1 ? " #1 - #" + coreCount : ""), 0,

         SensorType.Temperature, this, new ParameterDescription[] {

             new ParameterDescription("Offset [°C]", "Temperature offset.", 0)

           }, settings);

       pciAddress = WinRing0.FindPciDeviceById(PCI_AMD_VENDOR_ID,

         PCI_AMD_10H_MISCELLANEOUS_DEVICE_ID, (byte)processorIndex);

       if (pciAddress == 0xFFFFFFFF) 

         pciAddress = WinRing0.FindPciDeviceById(PCI_AMD_VENDOR_ID,

           PCI_AMD_11H_MISCELLANEOUS_DEVICE_ID, (byte)processorIndex);

       Update();                   

     }

     public override string Name {

       get { return name; }

     }

     public override Identifier Identifier {

       get { 

         return new Identifier("amdcpu", 

           processorIndex.ToString(CultureInfo.InvariantCulture)); 

       }

     }

     public override HardwareType HardwareType {

       get { return HardwareType.CPU; }

     }

     public override void Update() {

       if (pciAddress != 0xFFFFFFFF) {

         uint value;

         if (WinRing0.ReadPciConfigDwordEx(pciAddress,

           REPORTED_TEMPERATURE_CONTROL_REGISTER, out value)) {

           coreTemperature.Value = ((value >> 21) & 0x7FF) / 8.0f +

             coreTemperature.Parameters[0].Value;

           ActivateSensor(coreTemperature);

         } else {

           DeactivateSensor(coreTemperature);

         }

       }

       if (cpuLoad.IsAvailable) {

         cpuLoad.Update();

         for (int i = 0; i < coreLoads.Length; i++)

           coreLoads[i].Value = cpuLoad.GetCoreLoad(i);

         totalLoad.Value = cpuLoad.GetTotalLoad();

       }

     }

   }

 }