Hardware/LPC/LPCIO.cs
author moel.mich
Wed, 06 Oct 2010 19:50:10 +0000
changeset 216 b5b076457b68
parent 170 31858ba46e9c
child 228 458a6c3de579
permissions -rw-r--r--
Added more error checking to the T-Balancer enumeration code. This hopefully fixes an IndexOutOfRangeException in the TBalancerGroup constructor.
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/*
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  Version: MPL 1.1/GPL 2.0/LGPL 2.1
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  The contents of this file are subject to the Mozilla Public License Version
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  1.1 (the "License"); you may not use this file except in compliance with
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  the License. You may obtain a copy of the License at
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  http://www.mozilla.org/MPL/
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  Software distributed under the License is distributed on an "AS IS" basis,
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  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  for the specific language governing rights and limitations under the License.
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  The Original Code is the Open Hardware Monitor code.
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  The Initial Developer of the Original Code is 
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  Michael Möller <m.moeller@gmx.ch>.
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  Portions created by the Initial Developer are Copyright (C) 2009-2010
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  the Initial Developer. All Rights Reserved.
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  Contributor(s):
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  Alternatively, the contents of this file may be used under the terms of
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  either the GNU General Public License Version 2 or later (the "GPL"), or
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  the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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  in which case the provisions of the GPL or the LGPL are applicable instead
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  of those above. If you wish to allow use of your version of this file only
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  under the terms of either the GPL or the LGPL, and not to allow others to
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  use your version of this file under the terms of the MPL, indicate your
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  decision by deleting the provisions above and replace them with the notice
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  and other provisions required by the GPL or the LGPL. If you do not delete
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  the provisions above, a recipient may use your version of this file under
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  the terms of any one of the MPL, the GPL or the LGPL.
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*/
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Text;
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using System.Threading;
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namespace OpenHardwareMonitor.Hardware.LPC {
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  internal class LPCIO {
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    private readonly List<ISuperIO> superIOs = new List<ISuperIO>();
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    private readonly StringBuilder report = new StringBuilder();
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    // I/O Ports
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    private readonly ushort[] REGISTER_PORTS = new ushort[] { 0x2E, 0x4E };
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    private readonly ushort[] VALUE_PORTS = new ushort[] { 0x2F, 0x4F };
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    private ushort registerPort;
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    private ushort valuePort;
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    // Registers
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    private const byte CONFIGURATION_CONTROL_REGISTER = 0x02;
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    private const byte DEVCIE_SELECT_REGISTER = 0x07;
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    private const byte CHIP_ID_REGISTER = 0x20;
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    private const byte CHIP_REVISION_REGISTER = 0x21;
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    private const byte BASE_ADDRESS_REGISTER = 0x60;
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    private byte ReadByte(byte register) {
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      WinRing0.WriteIoPortByte(registerPort, register);
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      return WinRing0.ReadIoPortByte(valuePort);
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    } 
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    private ushort ReadWord(byte register) {
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      return (ushort)((ReadByte(register) << 8) | 
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        ReadByte((byte)(register + 1)));
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    }
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    private void Select(byte logicalDeviceNumber) {
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      WinRing0.WriteIoPortByte(registerPort, DEVCIE_SELECT_REGISTER);
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      WinRing0.WriteIoPortByte(valuePort, logicalDeviceNumber);
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    }
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    private void ReportUnknownChip(string type, int chip) {
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      report.Append("Chip ID: Unknown ");
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      report.Append(type);
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      report.Append(" with ID 0x");
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      report.Append(chip.ToString("X", CultureInfo.InvariantCulture));
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      report.Append(" at 0x");
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      report.Append(registerPort.ToString("X", CultureInfo.InvariantCulture));
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      report.Append("/0x");
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      report.AppendLine(valuePort.ToString("X", CultureInfo.InvariantCulture));
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      report.AppendLine();
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    }
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    #region Winbond, Fintek
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    private const byte FINTEK_VENDOR_ID_REGISTER = 0x23;
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    private const ushort FINTEK_VENDOR_ID = 0x1934;
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    private const byte WINBOND_HARDWARE_MONITOR_LDN = 0x0B;
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    private const byte F71858_HARDWARE_MONITOR_LDN = 0x02;
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    private const byte FINTEK_HARDWARE_MONITOR_LDN = 0x04;
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    private void WinbondFintekEnter() {
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      WinRing0.WriteIoPortByte(registerPort, 0x87);
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      WinRing0.WriteIoPortByte(registerPort, 0x87);
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    }
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    private void WinbondFintekExit() {
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      WinRing0.WriteIoPortByte(registerPort, 0xAA);
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    }
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    private bool DetectWinbondFintek() {
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      WinbondFintekEnter();
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      byte logicalDeviceNumber = 0;
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      byte id = ReadByte(CHIP_ID_REGISTER);
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      byte revision = ReadByte(CHIP_REVISION_REGISTER);
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      Chip chip = Chip.Unknown;
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      switch (id) {
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        case 0x05:
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          switch (revision) {
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            case 0x07:
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              chip = Chip.F71858;
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              logicalDeviceNumber = F71858_HARDWARE_MONITOR_LDN;
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              break;
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            case 0x41:
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              chip = Chip.F71882;
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              logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0x06:
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          switch (revision) {
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            case 0x01:
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              chip = Chip.F71862;
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              logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0x07:
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          switch (revision) {
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            case 0x23:
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              chip = Chip.F71889F;
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              logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0x08:
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          switch (revision) {
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            case 0x14:
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              chip = Chip.F71869;
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              logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0x09:
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          switch (revision) {
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            case 0x09:
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              chip = Chip.F71889ED;
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              logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0x52:
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          switch (revision) {
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            case 0x17:
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            case 0x3A:
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            case 0x41:
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              chip = Chip.W83627HF;
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              logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0x82:
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          switch (revision & 0xF0) {
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            case 0x80:
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              chip = Chip.W83627THF;
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              logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0x85:
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          switch (revision) {
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            case 0x41:
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              chip = Chip.W83687THF;
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              logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0x88:
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          switch (revision & 0xF0) {
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            case 0x50:
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            case 0x60:
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              chip = Chip.W83627EHF;
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              logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0xA0:
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          switch (revision & 0xF0) {
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            case 0x20:
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              chip = Chip.W83627DHG;
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              logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0xA5:
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          switch (revision & 0xF0) {
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            case 0x10:
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              chip = Chip.W83667HG;
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              logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0xB0:
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          switch (revision & 0xF0) {
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            case 0x70:
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              chip = Chip.W83627DHGP;
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              logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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        case 0xB3:
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          switch (revision & 0xF0) {
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            case 0x50:
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              chip = Chip.W83667HGB;
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              logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
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              break;
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          } break;
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      }
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      if (chip == Chip.Unknown) {
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        if (id != 0 && id != 0xff) {
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          WinbondFintekExit();
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          ReportUnknownChip("Winbond / Fintek", ((id << 8) | revision));         
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        }
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      } else {
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        Select(logicalDeviceNumber);
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        ushort address = ReadWord(BASE_ADDRESS_REGISTER);
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        Thread.Sleep(1);
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        ushort verify = ReadWord(BASE_ADDRESS_REGISTER);
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        ushort vendorID = ReadWord(FINTEK_VENDOR_ID_REGISTER);
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        WinbondFintekExit();
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        if (address != verify) {
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          report.Append("Chip ID: 0x");
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          report.AppendLine(chip.ToString("X"));
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          report.Append("Chip revision: 0x");
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          report.AppendLine(revision.ToString("X", 
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            CultureInfo.InvariantCulture));
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          report.AppendLine("Error: Address verification failed");
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          report.AppendLine();
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          return false;
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        }
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        // some Fintek chips have address register offset 0x05 added already
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        if ((address & 0x07) == 0x05)
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          address &= 0xFFF8;
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        if (address < 0x100 || (address & 0xF007) != 0) {
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          report.Append("Chip ID: 0x");
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          report.AppendLine(chip.ToString("X"));
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          report.Append("Chip revision: 0x");
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          report.AppendLine(revision.ToString("X", 
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            CultureInfo.InvariantCulture));
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          report.Append("Error: Invalid address 0x");
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          report.AppendLine(address.ToString("X", 
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            CultureInfo.InvariantCulture));
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          report.AppendLine();
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          return false;
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        }
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        switch (chip) {
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          case Chip.W83627DHG:
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          case Chip.W83627DHGP:
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          case Chip.W83627EHF:
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          case Chip.W83627HF:
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          case Chip.W83627THF:
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          case Chip.W83667HG:
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          case Chip.W83667HGB:
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          case Chip.W83687THF:
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            superIOs.Add(new W836XX(chip, revision, address));
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            break;
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          case Chip.F71858:
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          case Chip.F71862:
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          case Chip.F71869:
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          case Chip.F71882:
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          case Chip.F71889ED:
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          case Chip.F71889F:
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            if (vendorID != FINTEK_VENDOR_ID) {
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              report.Append("Chip ID: 0x");
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              report.AppendLine(chip.ToString("X"));
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              report.Append("Chip revision: 0x");
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              report.AppendLine(revision.ToString("X", 
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                CultureInfo.InvariantCulture));
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              report.Append("Error: Invalid vendor ID 0x");
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              report.AppendLine(vendorID.ToString("X", 
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                CultureInfo.InvariantCulture));
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              report.AppendLine();
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              return false;
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            }
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            superIOs.Add(new F718XX(chip, address));
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            break;
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          default: break;
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        }
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        return true;
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      }
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      return false;
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    }
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    #endregion
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    #region ITE
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    private const byte IT87_ENVIRONMENT_CONTROLLER_LDN = 0x04;
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    private const byte IT87_CHIP_VERSION_REGISTER = 0x22;
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    private void IT87Enter() {
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      WinRing0.WriteIoPortByte(registerPort, 0x87);
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      WinRing0.WriteIoPortByte(registerPort, 0x01);
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      WinRing0.WriteIoPortByte(registerPort, 0x55);
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      WinRing0.WriteIoPortByte(registerPort, 0x55);
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    }
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    private void IT87Exit() {
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      WinRing0.WriteIoPortByte(registerPort, CONFIGURATION_CONTROL_REGISTER);
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      WinRing0.WriteIoPortByte(valuePort, 0x02);
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    }
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    private bool DetectIT87() {
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      // IT87XX can enter only on port 0x2E
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      if (registerPort != 0x2E)
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        return false;
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      IT87Enter();
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      ushort chipID = ReadWord(CHIP_ID_REGISTER);
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      Chip chip;
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      switch (chipID) {
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        case 0x8712: chip = Chip.IT8712F; break;
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        case 0x8716: chip = Chip.IT8716F; break;
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        case 0x8718: chip = Chip.IT8718F; break;
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        case 0x8720: chip = Chip.IT8720F; break;
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        case 0x8721: chip = Chip.IT8721F; break;
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        case 0x8726: chip = Chip.IT8726F; break;
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        default: chip = Chip.Unknown; break;
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      }
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      if (chip == Chip.Unknown) {
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   341
        if (chipID != 0 && chipID != 0xffff) {
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          IT87Exit();
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   343
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   344
          ReportUnknownChip("ITE", chipID);
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        }
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      } else {
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        Select(IT87_ENVIRONMENT_CONTROLLER_LDN);
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        ushort address = ReadWord(BASE_ADDRESS_REGISTER);
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        Thread.Sleep(1);
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        ushort verify = ReadWord(BASE_ADDRESS_REGISTER);
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   351
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        byte version = (byte)(ReadByte(IT87_CHIP_VERSION_REGISTER) & 0x0F);
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   353
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        IT87Exit();
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   355
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   356
        if (address != verify || address < 0x100 || (address & 0xF007) != 0) {
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   357
          report.Append("Chip ID: 0x");
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          report.AppendLine(chip.ToString("X"));
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   359
          report.Append("Error: Invalid address 0x");
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          report.AppendLine(address.ToString("X",
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            CultureInfo.InvariantCulture));
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          report.AppendLine();
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          return false;
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   364
        }
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   365
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   366
        superIOs.Add(new IT87XX(chip, address, version));
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   367
        return true;
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   368
      }
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   369
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   370
      return false;
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    }
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   372
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   373
    #endregion
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   375
    #region SMSC
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   376
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   377
    private void SMSCEnter() {
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   378
      WinRing0.WriteIoPortByte(registerPort, 0x55);
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   379
    }
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   380
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   381
    private void SMSCExit() {
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   382
      WinRing0.WriteIoPortByte(registerPort, 0xAA);
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   383
    }
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   384
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   385
    private bool DetectSMSC() {
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   386
      SMSCEnter();
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   387
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   388
      ushort chipID = ReadWord(CHIP_ID_REGISTER);
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   389
      Chip chip;
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   390
      switch (chipID) {
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   391
        default: chip = Chip.Unknown; break;
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   392
      }
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   393
      if (chip == Chip.Unknown) {
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   394
        if (chipID != 0 && chipID != 0xffff) {
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   395
          SMSCExit();
moel@167
   396
moel@167
   397
          ReportUnknownChip("SMSC", chipID);
moel@167
   398
        }
moel@167
   399
      } else {
moel@167
   400
        SMSCExit();
moel@167
   401
        return true;
moel@167
   402
      }
moel@167
   403
moel@167
   404
      return false;
moel@167
   405
    }
moel@167
   406
moel@169
   407
    #endregion
moel@169
   408
moel@163
   409
    private void Detect() {
moel@110
   410
moel@110
   411
      for (int i = 0; i < REGISTER_PORTS.Length; i++) {
moel@110
   412
        registerPort = REGISTER_PORTS[i];
moel@110
   413
        valuePort = VALUE_PORTS[i];
moel@110
   414
moel@167
   415
        if (DetectWinbondFintek()) continue;
moel@110
   416
moel@167
   417
        if (DetectIT87()) continue;
moel@110
   418
moel@167
   419
        if (DetectSMSC()) continue;
moel@163
   420
      }  
moel@163
   421
    }
moel@163
   422
moel@163
   423
    public LPCIO() {
moel@163
   424
      if (!WinRing0.IsAvailable)
moel@163
   425
        return;
moel@163
   426
moel@163
   427
      if (!WinRing0.WaitIsaBusMutex(100))
moel@163
   428
        return;
moel@163
   429
moel@163
   430
      Detect();
moel@163
   431
moel@163
   432
      WinRing0.ReleaseIsaBusMutex();      
moel@110
   433
    }
moel@110
   434
moel@130
   435
    public ISuperIO[] SuperIO {
moel@110
   436
      get {
moel@130
   437
        return superIOs.ToArray();
moel@110
   438
      }
moel@110
   439
    }
moel@110
   440
moel@110
   441
    public string GetReport() {
moel@110
   442
      if (report.Length > 0) {
moel@195
   443
        return "LPCIO" + Environment.NewLine + Environment.NewLine + report;
moel@110
   444
      } else
moel@110
   445
        return null;
moel@110
   446
    }
moel@110
   447
  }
moel@110
   448
}