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Hardware/LPC/LPCIO.cs
author StephaneLenclud
Mon, 04 Feb 2013 00:47:01 +0100
branchMiniDisplay
changeset 435 9ffcd8ed8537
parent 413 362c5e77197d
child 454 f84878f52cd9
permissions -rw-r--r--
Now calling display init. Not getting the expected error code though. 
     1 /*

     2  

     3   This Source Code Form is subject to the terms of the Mozilla Public

     4   License, v. 2.0. If a copy of the MPL was not distributed with this

     5   file, You can obtain one at http://mozilla.org/MPL/2.0/.

     6  

     7   Copyright (C) 2009-2013 Michael Möller <mmoeller@openhardwaremonitor.org>

     8 	

     9 */

    10 

    11 using System;

    12 using System.Collections.Generic;

    13 using System.Globalization;

    14 using System.Text;

    15 using System.Threading;

    16 

    17 namespace OpenHardwareMonitor.Hardware.LPC {

    18   internal class LPCIO {

    19 

    20     private readonly List<ISuperIO> superIOs = new List<ISuperIO>();

    21     private readonly StringBuilder report = new StringBuilder();

    22 

    23     // I/O Ports

    24     private readonly ushort[] REGISTER_PORTS = new ushort[] { 0x2E, 0x4E };

    25     private readonly ushort[] VALUE_PORTS = new ushort[] { 0x2F, 0x4F };

    26 

    27     private ushort registerPort;

    28     private ushort valuePort;

    29 

    30     // Registers

    31     private const byte CONFIGURATION_CONTROL_REGISTER = 0x02;

    32     private const byte DEVCIE_SELECT_REGISTER = 0x07;

    33     private const byte CHIP_ID_REGISTER = 0x20;

    34     private const byte CHIP_REVISION_REGISTER = 0x21;

    35     private const byte BASE_ADDRESS_REGISTER = 0x60;

    36 

    37     private byte ReadByte(byte register) {

    38       Ring0.WriteIoPort(registerPort, register);

    39       return Ring0.ReadIoPort(valuePort);

    40     }

    41 

    42     private void WriteByte(byte register, byte value) {

    43       Ring0.WriteIoPort(registerPort, register);

    44       Ring0.WriteIoPort(valuePort, value);

    45     }

    46 

    47     private ushort ReadWord(byte register) {

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

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

    50     }

    51 

    52     private void Select(byte logicalDeviceNumber) {

    53       Ring0.WriteIoPort(registerPort, DEVCIE_SELECT_REGISTER);

    54       Ring0.WriteIoPort(valuePort, logicalDeviceNumber);

    55     }

    56 

    57     private void ReportUnknownChip(string type, int chip) {

    58       report.Append("Chip ID: Unknown ");

    59       report.Append(type);

    60       report.Append(" with ID 0x");

    61       report.Append(chip.ToString("X", CultureInfo.InvariantCulture));

    62       report.Append(" at 0x");

    63       report.Append(registerPort.ToString("X", CultureInfo.InvariantCulture));

    64       report.Append("/0x");

    65       report.AppendLine(valuePort.ToString("X", CultureInfo.InvariantCulture));

    66       report.AppendLine();

    67     }

    68 

    69     #region Winbond, Nuvoton, Fintek

    70 

    71     private const byte FINTEK_VENDOR_ID_REGISTER = 0x23;

    72     private const ushort FINTEK_VENDOR_ID = 0x1934;

    73 

    74     private const byte WINBOND_NUVOTON_HARDWARE_MONITOR_LDN = 0x0B;

    75 

    76     private const byte F71858_HARDWARE_MONITOR_LDN = 0x02;

    77     private const byte FINTEK_HARDWARE_MONITOR_LDN = 0x04;

    78 

    79     private const byte NUVOTON_HARDWARE_MONITOR_IO_SPACE_LOCK = 0x28;

    80 

    81     private void WinbondNuvotonFintekEnter() {

    82       Ring0.WriteIoPort(registerPort, 0x87);

    83       Ring0.WriteIoPort(registerPort, 0x87);

    84     }

    85 

    86     private void WinbondNuvotonFintekExit() {

    87       Ring0.WriteIoPort(registerPort, 0xAA);

    88     }

    89 

    90     private bool DetectWinbondFintek() {

    91       WinbondNuvotonFintekEnter();

    92 

    93       byte logicalDeviceNumber = 0;

    94       byte id = ReadByte(CHIP_ID_REGISTER);

    95       byte revision = ReadByte(CHIP_REVISION_REGISTER);

    96       Chip chip = Chip.Unknown;

    97       switch (id) {

    98         case 0x05:

    99           switch (revision) {

   100             case 0x07:

   101               chip = Chip.F71858;

   102               logicalDeviceNumber = F71858_HARDWARE_MONITOR_LDN;

   103               break;

   104             case 0x41:

   105               chip = Chip.F71882;

   106               logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   107               break;

   108           } break;

   109         case 0x06:

   110           switch (revision) {

   111             case 0x01:

   112               chip = Chip.F71862;

   113               logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   114               break;

   115           } break;

   116         case 0x07:

   117           switch (revision) {

   118             case 0x23:

   119               chip = Chip.F71889F;

   120               logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   121               break;

   122           } break;

   123         case 0x08:

   124           switch (revision) {

   125             case 0x14:

   126               chip = Chip.F71869;

   127               logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   128               break;

   129           } break;

   130         case 0x09:

   131           switch (revision) {

   132             case 0x01:

   133               chip = Chip.F71808E;

   134               logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   135               break;

   136             case 0x09:

   137               chip = Chip.F71889ED;

   138               logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   139               break;

   140           } break;

   141         case 0x10:

   142           switch (revision) {

   143             case 0x05:

   144               chip = Chip.F71889AD;

   145               logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   146               break;

   147             case 0x07:

   148               chip = Chip.F71869A;

   149               logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;

   150               break;

   151           } break;

   152         case 0x52:

   153           switch (revision) {

   154             case 0x17:

   155             case 0x3A:

   156             case 0x41:

   157               chip = Chip.W83627HF;

   158               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   159               break;

   160           } break;

   161         case 0x82:

   162           switch (revision & 0xF0) {

   163             case 0x80:

   164               chip = Chip.W83627THF;

   165               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   166               break;

   167           } break;

   168         case 0x85:

   169           switch (revision) {

   170             case 0x41:

   171               chip = Chip.W83687THF;

   172               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   173               break;

   174           } break;

   175         case 0x88:

   176           switch (revision & 0xF0) {

   177             case 0x50:

   178             case 0x60:

   179               chip = Chip.W83627EHF;

   180               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   181               break;

   182           } break;

   183         case 0xA0:

   184           switch (revision & 0xF0) {

   185             case 0x20:

   186               chip = Chip.W83627DHG;

   187               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   188               break;

   189           } break;

   190         case 0xA5:

   191           switch (revision & 0xF0) {

   192             case 0x10:

   193               chip = Chip.W83667HG;

   194               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   195               break;

   196           } break;

   197         case 0xB0:

   198           switch (revision & 0xF0) {

   199             case 0x70:

   200               chip = Chip.W83627DHGP;

   201               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   202               break;

   203           } break;

   204         case 0xB3:

   205           switch (revision & 0xF0) {

   206             case 0x50:

   207               chip = Chip.W83667HGB;

   208               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   209               break;

   210           } break;

   211         case 0xB4:

   212           switch (revision & 0xF0) {

   213             case 0x70:

   214               chip = Chip.NCT6771F;

   215               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   216               break;

   217           } break;

   218         case 0xC3:

   219           switch (revision & 0xF0) {

   220             case 0x30:

   221               chip = Chip.NCT6776F;

   222               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   223               break;

   224           } break;

   225         case 0xC5:

   226           switch (revision & 0xF0) {

   227             case 0x60:

   228               chip = Chip.NCT6779D;

   229               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   230               break;

   231           } break;

   232         case 0xC8:

   233           switch (revision) {

   234             case 0x03:

   235               chip = Chip.NCT6791D;

   236               logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;

   237               break;

   238           } break;

   239       }

   240       if (chip == Chip.Unknown) {

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

   242           WinbondNuvotonFintekExit();

   243 

   244           ReportUnknownChip("Winbond / Nuvoton / Fintek", 

   245             ((id << 8) | revision));

   246         }

   247       } else {

   248 

   249         Select(logicalDeviceNumber);

   250         ushort address = ReadWord(BASE_ADDRESS_REGISTER);

   251         Thread.Sleep(1);

   252         ushort verify = ReadWord(BASE_ADDRESS_REGISTER);

   253 

   254         ushort vendorID = ReadWord(FINTEK_VENDOR_ID_REGISTER);

   255 

   256         // disable the hardware monitor i/o space lock on NCT6791D chips

   257         if (address == verify && chip == Chip.NCT6791D) {

   258           byte options = ReadByte(NUVOTON_HARDWARE_MONITOR_IO_SPACE_LOCK);

   259 

   260           // if the i/o space lock is enabled

   261           if ((options & 0x10) > 0) {

   262 

   263             // disable the i/o space lock

   264             WriteByte(NUVOTON_HARDWARE_MONITOR_IO_SPACE_LOCK,

   265               (byte)(options & ~0x10));

   266           }

   267         }

   268 

   269         WinbondNuvotonFintekExit();

   270 

   271         if (address != verify) {

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

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

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

   275           report.AppendLine(revision.ToString("X",

   276             CultureInfo.InvariantCulture));

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

   278           report.AppendLine();

   279           return false;

   280         }

   281 

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

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

   284           address &= 0xFFF8;

   285 

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

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

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

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

   290           report.AppendLine(revision.ToString("X",

   291             CultureInfo.InvariantCulture));

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

   293           report.AppendLine(address.ToString("X",

   294             CultureInfo.InvariantCulture));

   295           report.AppendLine();

   296           return false;

   297         }

   298 

   299         switch (chip) {

   300           case Chip.W83627DHG:

   301           case Chip.W83627DHGP:

   302           case Chip.W83627EHF:

   303           case Chip.W83627HF:

   304           case Chip.W83627THF:

   305           case Chip.W83667HG:

   306           case Chip.W83667HGB:

   307           case Chip.W83687THF:

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

   309             break;

   310           case Chip.NCT6771F:

   311           case Chip.NCT6776F:

   312           case Chip.NCT6779D:

   313           case Chip.NCT6791D:

   314             superIOs.Add(new NCT677X(chip, revision, address));

   315             break;

   316           case Chip.F71858:

   317           case Chip.F71862:

   318           case Chip.F71869:

   319           case Chip.F71869A:

   320           case Chip.F71882:

   321           case Chip.F71889AD:

   322           case Chip.F71889ED:

   323           case Chip.F71889F:

   324           case Chip.F71808E:

   325             if (vendorID != FINTEK_VENDOR_ID) {

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

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

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

   329               report.AppendLine(revision.ToString("X",

   330                 CultureInfo.InvariantCulture));

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

   332               report.AppendLine(vendorID.ToString("X",

   333                 CultureInfo.InvariantCulture));

   334               report.AppendLine();

   335               return false;

   336             }

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

   338             break;

   339           default: break;

   340         }

   341 

   342         return true;

   343       }

   344 

   345       return false;

   346     }

   347 

   348     #endregion

   349 

   350     #region ITE

   351 

   352     private const byte IT87_ENVIRONMENT_CONTROLLER_LDN = 0x04;

   353     private const byte IT8705_GPIO_LDN = 0x05;

   354     private const byte IT87XX_GPIO_LDN = 0x07;

   355     private const byte IT87_CHIP_VERSION_REGISTER = 0x22;

   356 

   357     private void IT87Enter() {

   358       Ring0.WriteIoPort(registerPort, 0x87);

   359       Ring0.WriteIoPort(registerPort, 0x01);

   360       Ring0.WriteIoPort(registerPort, 0x55);

   361       Ring0.WriteIoPort(registerPort, 0x55);

   362     }

   363 

   364     private void IT87Exit() {

   365       Ring0.WriteIoPort(registerPort, CONFIGURATION_CONTROL_REGISTER);

   366       Ring0.WriteIoPort(valuePort, 0x02);

   367     }

   368 

   369     private bool DetectIT87() {

   370 

   371       // IT87XX can enter only on port 0x2E

   372       if (registerPort != 0x2E)

   373         return false;

   374 

   375       IT87Enter();

   376 

   377       ushort chipID = ReadWord(CHIP_ID_REGISTER);

   378       Chip chip;

   379       switch (chipID) {

   380         case 0x8705: chip = Chip.IT8705F; break;

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

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

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

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

   385         case 0x8721: chip = Chip.IT8721F; break;

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

   387         case 0x8728: chip = Chip.IT8728F; break;

   388         case 0x8771: chip = Chip.IT8771E; break;

   389         case 0x8772: chip = Chip.IT8772E; break;

   390         default: chip = Chip.Unknown; break;

   391       }

   392       if (chip == Chip.Unknown) {

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

   394           IT87Exit();

   395 

   396           ReportUnknownChip("ITE", chipID);

   397         }

   398       } else {

   399         Select(IT87_ENVIRONMENT_CONTROLLER_LDN);

   400         ushort address = ReadWord(BASE_ADDRESS_REGISTER);

   401         Thread.Sleep(1);

   402         ushort verify = ReadWord(BASE_ADDRESS_REGISTER);

   403 

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

   405 

   406         ushort gpioAddress;

   407         ushort gpioVerify;

   408         if (chip == Chip.IT8705F) {

   409           Select(IT8705_GPIO_LDN);

   410           gpioAddress = ReadWord(BASE_ADDRESS_REGISTER);

   411           Thread.Sleep(1);

   412           gpioVerify = ReadWord(BASE_ADDRESS_REGISTER);

   413         } else {

   414           Select(IT87XX_GPIO_LDN);

   415           gpioAddress = ReadWord(BASE_ADDRESS_REGISTER + 2);

   416           Thread.Sleep(1);

   417           gpioVerify = ReadWord(BASE_ADDRESS_REGISTER + 2);

   418         }

   419         

   420         IT87Exit();

   421 

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

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

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

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

   426           report.AppendLine(address.ToString("X",

   427             CultureInfo.InvariantCulture));

   428           report.AppendLine();

   429           return false;

   430         }

   431 

   432         if (gpioAddress != gpioVerify || gpioAddress < 0x100 ||

   433           (gpioAddress & 0xF007) != 0) {

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

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

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

   437           report.AppendLine(gpioAddress.ToString("X",

   438             CultureInfo.InvariantCulture));

   439           report.AppendLine();

   440           return false;

   441         }

   442 

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

   444         return true;

   445       }

   446 

   447       return false;

   448     }

   449 

   450     #endregion

   451 

   452     #region SMSC

   453 

   454     private void SMSCEnter() {

   455       Ring0.WriteIoPort(registerPort, 0x55);

   456     }

   457 

   458     private void SMSCExit() {

   459       Ring0.WriteIoPort(registerPort, 0xAA);

   460     }

   461 

   462     private bool DetectSMSC() {

   463       SMSCEnter();

   464 

   465       ushort chipID = ReadWord(CHIP_ID_REGISTER);

   466       Chip chip;

   467       switch (chipID) {

   468         default: chip = Chip.Unknown; break;

   469       }

   470       if (chip == Chip.Unknown) {

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

   472           SMSCExit();

   473 

   474           ReportUnknownChip("SMSC", chipID);

   475         }

   476       } else {

   477         SMSCExit();

   478         return true;

   479       }

   480 

   481       return false;

   482     }

   483 

   484     #endregion

   485 

   486     private void Detect() {

   487 

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

   489         registerPort = REGISTER_PORTS[i];

   490         valuePort = VALUE_PORTS[i];

   491 

   492         if (DetectWinbondFintek()) continue;

   493 

   494         if (DetectIT87()) continue;

   495 

   496         if (DetectSMSC()) continue;

   497       }

   498     }

   499 

   500     public LPCIO() {

   501       if (!Ring0.IsOpen)

   502         return;

   503 

   504       if (!Ring0.WaitIsaBusMutex(100))

   505         return;

   506 

   507       Detect();

   508 

   509       Ring0.ReleaseIsaBusMutex();

   510     }

   511 

   512     public ISuperIO[] SuperIO {

   513       get {

   514         return superIOs.ToArray();

   515       }

   516     }

   517 

   518     public string GetReport() {

   519       if (report.Length > 0) {

   520         return "LPCIO" + Environment.NewLine + Environment.NewLine + report;

   521       } else

   522         return null;

   523     }

   524   }

   525 }
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