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Hardware/LPC/LPCIO.cs
author moel.mich
Thu, 12 Aug 2010 20:53:27 +0000
changeset 166 fa9dfbfc4145
parent 165 813d8bc3192f
child 167 b7cc9d09aefe
permissions -rw-r--r--
Changed the project files to Visual Studio 2010. Fixed some Code Analysis warnings. 
     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.Globalization;

    41 using System.Text;

    42 using System.Threading;

    43 

    44 namespace OpenHardwareMonitor.Hardware.LPC {

    45   internal class LPCIO {

    46 

    47     private List<ISuperIO> superIOs = new List<ISuperIO>();

    48     private StringBuilder report = new StringBuilder();

    49 

    50     private Chip chip = Chip.Unknown;

    51 

    52     // I/O Ports

    53     private ushort[] REGISTER_PORTS = new ushort[] { 0x2e, 0x4e };

    54     private ushort[] VALUE_PORTS = new ushort[] { 0x2f, 0x4f };

    55 

    56     private ushort registerPort;

    57     private ushort valuePort;

    58 

    59     // Registers

    60     private const byte CONFIGURATION_CONTROL_REGISTER = 0x02;

    61     private const byte DEVCIE_SELECT_REGISTER = 0x07;

    62     private const byte CHIP_ID_REGISTER = 0x20;

    63     private const byte CHIP_REVISION_REGISTER = 0x21;

    64     private const byte BASE_ADDRESS_REGISTER = 0x60;

    65 

    66     private byte ReadByte(byte register) {

    67       WinRing0.WriteIoPortByte(registerPort, register);

    68       return WinRing0.ReadIoPortByte(valuePort);

    69     } 

    70 

    71     private ushort ReadWord(byte register) {

    72       return (ushort)((ReadByte(register) << 8) | 

    73         ReadByte((byte)(register + 1)));

    74     }

    75 

    76     private void Select(byte logicalDeviceNumber) {

    77       WinRing0.WriteIoPortByte(registerPort, DEVCIE_SELECT_REGISTER);

    78       WinRing0.WriteIoPortByte(valuePort, logicalDeviceNumber);

    79     }

    80 

    81     // ITE

    82     private const byte IT87_ENVIRONMENT_CONTROLLER_LDN = 0x04;

    83     private const byte IT87_CHIP_VERSION_REGISTER = 0x22;

    84 

    85     private void IT87Enter() {

    86       WinRing0.WriteIoPortByte(registerPort, 0x87);

    87       WinRing0.WriteIoPortByte(registerPort, 0x01);

    88       WinRing0.WriteIoPortByte(registerPort, 0x55);

    89       WinRing0.WriteIoPortByte(registerPort, 0x55);

    90     }

    91 

    92     private void IT87Exit() {

    93       WinRing0.WriteIoPortByte(registerPort, CONFIGURATION_CONTROL_REGISTER);

    94       WinRing0.WriteIoPortByte(valuePort, 0x02);

    95     }

    96 

    97     // Winbond, Fintek

    98     private const byte FINTEK_VENDOR_ID_REGISTER = 0x23;

    99     private const ushort FINTEK_VENDOR_ID = 0x1934;

   100 

   101     private const byte WINBOND_HARDWARE_MONITOR_LDN = 0x0B;

   102 

   103     private const byte F71858_HARDWARE_MONITOR_LDN = 0x02;

   104     private const byte FINTEK_HARDWARE_MONITOR_LDN = 0x04;

   105 

   106     private void WinbondFintekEnter() {

   107       WinRing0.WriteIoPortByte(registerPort, 0x87);

   108       WinRing0.WriteIoPortByte(registerPort, 0x87);

   109     }

   110 

   111     private void WinbondFintekExit() {

   112       WinRing0.WriteIoPortByte(registerPort, 0xAA);      

   113     }

   114 

   115     // SMSC

   116     private void SMSCEnter() {

   117       WinRing0.WriteIoPortByte(registerPort, 0x55);

   118     }

   119 

   120     private void SMSCExit() {

   121       WinRing0.WriteIoPortByte(registerPort, 0xAA);

   122     }

   123 

   124     private void Detect() {

   125 

   126       for (int i = 0; i < REGISTER_PORTS.Length; i++) {

   127         registerPort = REGISTER_PORTS[i];

   128         valuePort = VALUE_PORTS[i];

   129 

   130         WinbondFintekEnter();

   131 

   132         byte logicalDeviceNumber;

   133         byte id = ReadByte(CHIP_ID_REGISTER);

   134         byte revision = ReadByte(CHIP_REVISION_REGISTER);

   135         chip = Chip.Unknown;

   136         logicalDeviceNumber = 0;

   137         switch (id) {

   138           case 0x05:

   139             switch (revision) {

   140               case 0x07:

   141                 chip = Chip.F71858;

   142                 logicalDeviceNumber = F71858_HARDWARE_MONITOR_LDN;

   143                 break;

   144               case 0x41:

   145                 chip = Chip.F71882;

   146                 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   147                 break;

   148             } break;

   149           case 0x06:

   150             switch (revision) {

   151               case 0x01:

   152                 chip = Chip.F71862;

   153                 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   154                 break;

   155             } break;

   156           case 0x07:

   157             switch (revision) {

   158               case 0x23:

   159                 chip = Chip.F71889F;

   160                 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   161                 break;

   162             } break;

   163           case 0x08:

   164             switch (revision) {

   165               case 0x14:

   166                 chip = Chip.F71869;

   167                 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   168                 break;

   169             } break;

   170           case 0x09:

   171             switch (revision) {

   172               case 0x09:

   173                 chip = Chip.F71889ED;

   174                 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   175                 break;

   176             } break;

   177           case 0x52:

   178             switch (revision) {

   179               case 0x17:

   180               case 0x3A:

   181               case 0x41:

   182                 chip = Chip.W83627HF;

   183                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;

   184                 break;

   185             } break;

   186           case 0x82:

   187             switch (revision & 0xF0) {

   188               case 0x80:

   189                 chip = Chip.W83627THF;

   190                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;

   191                 break;

   192             } break;

   193           case 0x85:

   194             switch (revision) {

   195               case 0x41:

   196                 chip = Chip.W83687THF;

   197                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;

   198                 break;

   199             } break;

   200           case 0x88:

   201             switch (revision & 0xF0) {

   202               case 0x50:

   203               case 0x60:

   204                 chip = Chip.W83627EHF;

   205                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;

   206                 break;

   207             } break;

   208           case 0xA0:

   209             switch (revision & 0xF0) {

   210               case 0x20:

   211                 chip = Chip.W83627DHG;

   212                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;

   213                 break;

   214             } break;

   215           case 0xA5:

   216             switch (revision & 0xF0) {

   217               case 0x10:

   218                 chip = Chip.W83667HG;

   219                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;

   220                 break;

   221             } break;

   222           case 0xB0:

   223             switch (revision & 0xF0) {

   224               case 0x70:

   225                 chip = Chip.W83627DHGP;

   226                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;

   227                 break;

   228             } break;

   229           case 0xB3:

   230             switch (revision & 0xF0) {

   231               case 0x50:

   232                 chip = Chip.W83667HGB;

   233                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;

   234                 break;

   235             } break;

   236         }

   237         if (chip == Chip.Unknown) {

   238           if (id != 0 && id != 0xff) {

   239             WinbondFintekExit();

   240 

   241             report.Append("Chip ID: Unknown Winbond / Fintek with ID 0x");

   242             report.AppendLine(((id << 8) | revision).ToString("X", 

   243               CultureInfo.InvariantCulture));

   244             report.AppendLine();

   245           }

   246         } else {

   247 

   248           Select(logicalDeviceNumber);

   249           ushort address = ReadWord(BASE_ADDRESS_REGISTER);

   250           Thread.Sleep(1);

   251           ushort verify = ReadWord(BASE_ADDRESS_REGISTER);

   252 

   253           ushort vendorID = ReadWord(FINTEK_VENDOR_ID_REGISTER);

   254 

   255           WinbondFintekExit();

   256 

   257           if (address != verify) {

   258             report.Append("Chip ID: 0x");

   259             report.AppendLine(chip.ToString("X"));

   260             report.Append("Chip revision: 0x");

   261             report.AppendLine(revision.ToString("X", CultureInfo.InvariantCulture));

   262             report.AppendLine("Error: Address verification failed");

   263             report.AppendLine();

   264             return;

   265           }

   266 

   267           // some Fintek chips have address register offset 0x05 added already

   268           if ((address & 0x07) == 0x05)

   269             address &= 0xFFF8;

   270 

   271           if (address < 0x100 || (address & 0xF007) != 0) {

   272             report.Append("Chip ID: 0x");

   273             report.AppendLine(chip.ToString("X"));

   274             report.Append("Chip revision: 0x");

   275             report.AppendLine(revision.ToString("X", CultureInfo.InvariantCulture));

   276             report.Append("Error: Invalid address 0x");

   277             report.AppendLine(address.ToString("X", CultureInfo.InvariantCulture));

   278             report.AppendLine();

   279             return;

   280           }

   281 

   282           switch (chip) {

   283             case Chip.W83627DHG:

   284             case Chip.W83627DHGP:

   285             case Chip.W83627EHF:

   286             case Chip.W83627HF:

   287             case Chip.W83627THF:

   288             case Chip.W83667HG:

   289             case Chip.W83667HGB:

   290             case Chip.W83687THF:

   291               superIOs.Add(new W836XX(chip, revision, address));

   292               break;

   293             case Chip.F71858:

   294             case Chip.F71862:

   295             case Chip.F71869:

   296             case Chip.F71882:

   297             case Chip.F71889ED:

   298             case Chip.F71889F:

   299               if (vendorID != FINTEK_VENDOR_ID) {

   300                 report.Append("Chip ID: 0x");

   301                 report.AppendLine(chip.ToString("X"));

   302                 report.Append("Chip revision: 0x");

   303                 report.AppendLine(revision.ToString("X", CultureInfo.InvariantCulture));

   304                 report.Append("Error: Invalid vendor ID 0x");

   305                 report.AppendLine(vendorID.ToString("X", CultureInfo.InvariantCulture));

   306                 report.AppendLine();

   307                 return;

   308               }

   309               superIOs.Add(new F718XX(chip, address));

   310               break;

   311             default: break;

   312           }

   313 

   314           return;

   315         }

   316 

   317         IT87Enter();

   318 

   319         ushort chipID = ReadWord(CHIP_ID_REGISTER);

   320         switch (chipID) {

   321           case 0x8712: chip = Chip.IT8712F; break;

   322           case 0x8716: chip = Chip.IT8716F; break;

   323           case 0x8718: chip = Chip.IT8718F; break;

   324           case 0x8720: chip = Chip.IT8720F; break;

   325           case 0x8726: chip = Chip.IT8726F; break;

   326           default: chip = Chip.Unknown; break;

   327         }

   328         if (chip == Chip.Unknown) {

   329           if (chipID != 0 && chipID != 0xffff) {

   330             IT87Exit();

   331 

   332             report.Append("Chip ID: Unknown ITE with ID 0x");

   333             report.AppendLine(chipID.ToString("X", CultureInfo.InvariantCulture));

   334             report.AppendLine();

   335           }

   336         } else {

   337           Select(IT87_ENVIRONMENT_CONTROLLER_LDN);

   338           ushort address = ReadWord(BASE_ADDRESS_REGISTER);

   339           Thread.Sleep(1);

   340           ushort verify = ReadWord(BASE_ADDRESS_REGISTER);

   341 

   342           byte version = (byte)(ReadByte(IT87_CHIP_VERSION_REGISTER) & 0x0F);

   343 

   344           IT87Exit();

   345 

   346           if (address != verify || address < 0x100 || (address & 0xF007) != 0) {

   347             report.Append("Chip ID: 0x");

   348             report.AppendLine(chip.ToString("X"));

   349             report.Append("Error: Invalid address 0x");

   350             report.AppendLine(address.ToString("X", CultureInfo.InvariantCulture));

   351             report.AppendLine();

   352             return;

   353           }

   354 

   355           superIOs.Add(new IT87XX(chip, address, version));

   356 

   357           return;

   358         }

   359 

   360         SMSCEnter();

   361 

   362         chipID = ReadWord(CHIP_ID_REGISTER);

   363         switch (chipID) {

   364           default: chip = Chip.Unknown; break;

   365         }

   366         if (chip == Chip.Unknown) {

   367           if (chipID != 0 && chipID != 0xffff) {

   368             SMSCExit();

   369 

   370             report.Append("Chip ID: Unknown SMSC with ID 0x");

   371             report.AppendLine(chipID.ToString("X", CultureInfo.InvariantCulture));

   372             report.AppendLine();

   373           }

   374         } else {

   375           SMSCExit();

   376 

   377           return;

   378         }

   379       }  

   380     }

   381 

   382     public LPCIO() {

   383       if (!WinRing0.IsAvailable)

   384         return;

   385 

   386       if (!WinRing0.WaitIsaBusMutex(100))

   387         return;

   388 

   389       Detect();

   390 

   391       WinRing0.ReleaseIsaBusMutex();      

   392     }

   393 

   394     public ISuperIO[] SuperIO {

   395       get {

   396         return superIOs.ToArray();

   397       }

   398     }

   399 

   400     public string GetReport() {

   401       if (report.Length > 0) {

   402         report.Insert(0, "LPCIO" + Environment.NewLine +

   403           Environment.NewLine);        

   404         return report.ToString();

   405       } else

   406         return null;

   407     }

   408   }

   409 }
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