moel@110: /*
moel@110:   
moel@110:   Version: MPL 1.1/GPL 2.0/LGPL 2.1
moel@110: 
moel@110:   The contents of this file are subject to the Mozilla Public License Version
moel@110:   1.1 (the "License"); you may not use this file except in compliance with
moel@110:   the License. You may obtain a copy of the License at
moel@110:  
moel@110:   http://www.mozilla.org/MPL/
moel@110: 
moel@110:   Software distributed under the License is distributed on an "AS IS" basis,
moel@110:   WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
moel@110:   for the specific language governing rights and limitations under the License.
moel@110: 
moel@110:   The Original Code is the Open Hardware Monitor code.
moel@110: 
moel@110:   The Initial Developer of the Original Code is 
moel@110:   Michael Möller <m.moeller@gmx.ch>.
moel@110:   Portions created by the Initial Developer are Copyright (C) 2009-2010
moel@110:   the Initial Developer. All Rights Reserved.
moel@110: 
moel@110:   Contributor(s):
moel@110: 
moel@110:   Alternatively, the contents of this file may be used under the terms of
moel@110:   either the GNU General Public License Version 2 or later (the "GPL"), or
moel@110:   the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
moel@110:   in which case the provisions of the GPL or the LGPL are applicable instead
moel@110:   of those above. If you wish to allow use of your version of this file only
moel@110:   under the terms of either the GPL or the LGPL, and not to allow others to
moel@110:   use your version of this file under the terms of the MPL, indicate your
moel@110:   decision by deleting the provisions above and replace them with the notice
moel@110:   and other provisions required by the GPL or the LGPL. If you do not delete
moel@110:   the provisions above, a recipient may use your version of this file under
moel@110:   the terms of any one of the MPL, the GPL or the LGPL.
moel@110:  
moel@110: */
moel@110: 
moel@110: using System;
moel@110: using System.Collections.Generic;
moel@110: using System.Text;
moel@110: using System.Threading;
moel@110: 
moel@110: namespace OpenHardwareMonitor.Hardware.LPC {
moel@110:   public class LPCIO {
moel@110: 
moel@110:     private List<IHardware> hardware = new List<IHardware>();
moel@110:     private StringBuilder report = new StringBuilder();
moel@110: 
moel@110:     private Chip chip = Chip.Unknown;
moel@110: 
moel@110:     // I/O Ports
moel@110:     private ushort[] REGISTER_PORTS = new ushort[] { 0x2e, 0x4e };
moel@110:     private ushort[] VALUE_PORTS = new ushort[] { 0x2f, 0x4f };
moel@110: 
moel@110:     private ushort registerPort;
moel@110:     private ushort valuePort;
moel@110: 
moel@110:     // Registers
moel@110:     private const byte CONFIGURATION_CONTROL_REGISTER = 0x02;
moel@110:     private const byte DEVCIE_SELECT_REGISTER = 0x07;
moel@110:     private const byte CHIP_ID_REGISTER = 0x20;
moel@110:     private const byte CHIP_REVISION_REGISTER = 0x21;
moel@110:     private const byte BASE_ADDRESS_REGISTER = 0x60;
moel@110: 
moel@110:     private byte ReadByte(byte register) {
moel@110:       WinRing0.WriteIoPortByte(registerPort, register);
moel@110:       return WinRing0.ReadIoPortByte(valuePort);
moel@110:     } 
moel@110: 
moel@110:     private ushort ReadWord(byte register) {
moel@110:       return (ushort)((ReadByte(register) << 8) | 
moel@110:         ReadByte((byte)(register + 1)));
moel@110:     }
moel@110: 
moel@110:     private void Select(byte logicalDeviceNumber) {
moel@110:       WinRing0.WriteIoPortByte(registerPort, DEVCIE_SELECT_REGISTER);
moel@110:       WinRing0.WriteIoPortByte(valuePort, logicalDeviceNumber);
moel@110:     }
moel@110: 
moel@110:     // ITE
moel@110:     private const byte IT87_ENVIRONMENT_CONTROLLER_LDN = 0x04;    
moel@110: 
moel@110:     private void IT87Enter() {
moel@110:       WinRing0.WriteIoPortByte(registerPort, 0x87);
moel@110:       WinRing0.WriteIoPortByte(registerPort, 0x01);
moel@110:       WinRing0.WriteIoPortByte(registerPort, 0x55);
moel@110:       WinRing0.WriteIoPortByte(registerPort, 0x55);
moel@110:     }
moel@110: 
moel@110:     internal void IT87Exit() {
moel@110:       WinRing0.WriteIoPortByte(registerPort, CONFIGURATION_CONTROL_REGISTER);
moel@110:       WinRing0.WriteIoPortByte(valuePort, 0x02);
moel@110:     }
moel@110: 
moel@110:     // Winbond, Fintek
moel@110:     private const byte FINTEK_VENDOR_ID_REGISTER = 0x23;
moel@110:     private const ushort FINTEK_VENDOR_ID = 0x1934;
moel@110: 
moel@110:     private const byte WINBOND_HARDWARE_MONITOR_LDN = 0x0B;
moel@110: 
moel@110:     private const byte F71858_HARDWARE_MONITOR_LDN = 0x02;
moel@110:     private const byte FINTEK_HARDWARE_MONITOR_LDN = 0x04;
moel@110: 
moel@110:     private void WinbondFintekEnter() {
moel@110:       WinRing0.WriteIoPortByte(registerPort, 0x87);
moel@110:       WinRing0.WriteIoPortByte(registerPort, 0x87);
moel@110:     }
moel@110: 
moel@110:     private void WinbondFintekExit() {
moel@110:       WinRing0.WriteIoPortByte(registerPort, 0xAA);      
moel@110:     }
moel@110: 
moel@110:     // SMSC
moel@110:     private void SMSCEnter() {
moel@110:       WinRing0.WriteIoPortByte(registerPort, 0x55);
moel@110:     }
moel@110: 
moel@110:     private void SMSCExit() {
moel@110:       WinRing0.WriteIoPortByte(registerPort, 0xAA);
moel@110:     }
moel@110: 
moel@110:     public LPCIO() {
moel@110:       if (!WinRing0.IsAvailable)
moel@110:         return;
moel@110: 
moel@110:       for (int i = 0; i < REGISTER_PORTS.Length; i++) {
moel@110:         registerPort = REGISTER_PORTS[i];
moel@110:         valuePort = VALUE_PORTS[i];
moel@110: 
moel@110:         WinbondFintekEnter();
moel@110: 
moel@110:         byte logicalDeviceNumber;
moel@110:         byte id = ReadByte(CHIP_ID_REGISTER);
moel@110:         byte revision = ReadByte(CHIP_REVISION_REGISTER);
moel@110:         chip = Chip.Unknown;
moel@110:         logicalDeviceNumber = 0;
moel@110:         switch (id) {
moel@110:           case 0x05:
moel@110:             switch (revision) {
moel@110:               case 0x07:
moel@110:                 chip = Chip.F71858;
moel@110:                 logicalDeviceNumber = F71858_HARDWARE_MONITOR_LDN;
moel@110:                 break;
moel@110:               case 0x41:
moel@110:                 chip = Chip.F71882;
moel@110:                 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
moel@110:                 break;              
moel@110:             } break;
moel@110:           case 0x06:
moel@110:             switch (revision) {             
moel@110:               case 0x01:
moel@110:                 chip = Chip.F71862;
moel@110:                 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
moel@110:                 break;              
moel@110:             } break;
moel@110:           case 0x07:
moel@110:             switch (revision) {
moel@110:               case 0x23:
moel@110:                 chip = Chip.F71889F;
moel@110:                 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
moel@110:                 break;              
moel@110:             } break;
moel@110:           case 0x08:
moel@110:             switch (revision) {
moel@110:               case 0x14:
moel@110:                 chip = Chip.F71869;
moel@110:                 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
moel@110:                 break;              
moel@110:             } break;
moel@110:           case 0x09:
moel@110:             switch (revision) {
moel@110:               case 0x09:
moel@110:                 chip = Chip.F71889ED;
moel@110:                 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
moel@110:                 break;              
moel@110:             } break;
moel@110:           case 0x52:
moel@110:             switch (revision) {
moel@110:               case 0x17:
moel@110:               case 0x3A:
moel@110:               case 0x41:
moel@110:                 chip = Chip.W83627HF;
moel@110:                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
moel@110:                 break;             
moel@110:             } break;
moel@110:           case 0x82:
moel@110:             switch (revision) {
moel@110:               case 0x83:
moel@110:                 chip = Chip.W83627THF;
moel@110:                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
moel@110:                 break;
moel@110:             } break;
moel@110:           case 0x85:
moel@110:             switch (revision) {
moel@110:               case 0x41:
moel@110:                 chip = Chip.W83687THF;
moel@110:                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
moel@110:                 break;
moel@110:             } break;
moel@110:           case 0x88:
moel@110:             switch (revision & 0xF0) {
moel@110:               case 0x50:
moel@110:               case 0x60:
moel@110:                 chip = Chip.W83627EHF;
moel@110:                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
moel@110:                 break;
moel@110:             } break;
moel@110:           case 0xA0:
moel@110:             switch (revision & 0xF0) {
moel@110:               case 0x20: 
moel@110:                 chip = Chip.W83627DHG;
moel@110:                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;  
moel@110:                 break;             
moel@110:             } break;
moel@110:           case 0xA5:
moel@110:             switch (revision & 0xF0) {
moel@110:               case 0x10:
moel@110:                 chip = Chip.W83667HG;
moel@110:                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
moel@110:                 break;
moel@110:             } break;
moel@110:           case 0xB0:
moel@110:             switch (revision & 0xF0) {
moel@110:               case 0x70:
moel@110:                 chip = Chip.W83627DHGP;
moel@110:                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
moel@110:                 break;             
moel@110:             } break;
moel@110:           case 0xB3:
moel@110:             switch (revision & 0xF0) {
moel@110:               case 0x50:
moel@110:                 chip = Chip.W83667HGB;
moel@110:                 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
moel@110:                 break;
moel@110:             } break; 
moel@110:         }
moel@110:         if (chip == Chip.Unknown) {
moel@110:           if (id != 0 && id != 0xff) {
moel@110:             WinbondFintekExit();
moel@110: 
moel@110:             report.Append("Chip ID: Unknown Winbond / Fintek with ID 0x"); 
moel@110:             report.AppendLine(((id << 8) | revision).ToString("X"));
moel@110:             report.AppendLine();
moel@110:           }
moel@110:         } else {
moel@110: 
moel@110:           Select(logicalDeviceNumber);
moel@110:           ushort address = ReadWord(BASE_ADDRESS_REGISTER);          
moel@110:           Thread.Sleep(1);
moel@110:           ushort verify = ReadWord(BASE_ADDRESS_REGISTER);
moel@110: 
moel@110:           ushort vendorID = ReadWord(FINTEK_VENDOR_ID_REGISTER);
moel@110: 
moel@110:           WinbondFintekExit();
moel@110: 
moel@110:           if (address != verify) {            
moel@110:             report.Append("Chip ID: 0x"); 
moel@110:             report.AppendLine(chip.ToString("X"));
moel@110:             report.Append("Chip revision: 0x"); 
moel@110:             report.AppendLine(revision.ToString("X"));
moel@110:             report.AppendLine("Error: Address verification failed");
moel@110:             report.AppendLine();
moel@110:             return;
moel@110:           }
moel@110: 
moel@110:           // some Fintek chips have address register offset 0x05 added already
moel@110:           if ((address & 0x07) == 0x05)
moel@110:             address &= 0xFFF8;
moel@110: 
moel@110:           if (address < 0x100 || (address & 0xF007) != 0) {            
moel@110:             report.Append("Chip ID: 0x");
moel@110:             report.AppendLine(chip.ToString("X"));
moel@110:             report.Append("Chip revision: 0x");
moel@110:             report.AppendLine(revision.ToString("X"));
moel@110:             report.Append("Error: Invalid address 0x");
moel@110:             report.AppendLine(address.ToString("X"));
moel@110:             report.AppendLine();
moel@110:             return;
moel@110:           }
moel@110: 
moel@110:           switch (chip) {
moel@110:             case Chip.W83627DHG:
moel@110:             case Chip.W83627DHGP:
moel@110:             case Chip.W83627EHF:
moel@110:             case Chip.W83627HF:
moel@110:             case Chip.W83627THF:
moel@110:             case Chip.W83667HG:
moel@110:             case Chip.W83667HGB:
moel@110:             case Chip.W83687THF:
moel@110:               W836XX w836XX = new W836XX(chip, revision, address);
moel@110:               if (w836XX.IsAvailable)
moel@110:                 hardware.Add(w836XX);
moel@110:               break;
moel@110:             case Chip.F71858:
moel@110:             case Chip.F71862:
moel@110:             case Chip.F71869:
moel@110:             case Chip.F71882:
moel@110:             case Chip.F71889ED:
moel@110:             case Chip.F71889F:
moel@110:               if (vendorID != FINTEK_VENDOR_ID) {
moel@110:                 report.Append("Chip ID: 0x");
moel@110:                 report.AppendLine(chip.ToString("X"));
moel@110:                 report.Append("Chip revision: 0x");
moel@110:                 report.AppendLine(revision.ToString("X"));
moel@110:                 report.Append("Error: Invalid vendor ID 0x");
moel@110:                 report.AppendLine(vendorID.ToString("X"));
moel@110:                 report.AppendLine();
moel@110:                 return;
moel@110:               }
moel@110:               hardware.Add(new F718XX(chip, address));
moel@110:               break;
moel@110:             default: break;
moel@110:           }
moel@110:           
moel@110:           return;
moel@110:         }
moel@110: 
moel@110:         IT87Enter();
moel@110: 
moel@110:         ushort chipID = ReadWord(CHIP_ID_REGISTER);
moel@110:         switch (chipID) {
moel@110:           case 0x8712: chip = Chip.IT8712F; break;
moel@110:           case 0x8716: chip = Chip.IT8716F; break;
moel@110:           case 0x8718: chip = Chip.IT8718F; break;
moel@110:           case 0x8720: chip = Chip.IT8720F; break;
moel@110:           case 0x8726: chip = Chip.IT8726F; break; 
moel@110:           default: chip = Chip.Unknown; break;
moel@110:         }
moel@110:         if (chip == Chip.Unknown) {
moel@110:           if (chipID != 0 && chipID != 0xffff) {
moel@110:             IT87Exit();
moel@110: 
moel@110:             report.Append("Chip ID: Unknown ITE with ID 0x");
moel@110:             report.AppendLine(chipID.ToString("X"));
moel@110:             report.AppendLine();
moel@110:           }
moel@110:         } else {
moel@110:           Select(IT87_ENVIRONMENT_CONTROLLER_LDN);
moel@110:           ushort address = ReadWord(BASE_ADDRESS_REGISTER);
moel@110:           Thread.Sleep(1);
moel@110:           ushort verify = ReadWord(BASE_ADDRESS_REGISTER);
moel@110: 
moel@110:           IT87Exit();
moel@110: 
moel@110:           if (address != verify || address < 0x100 || (address & 0xF007) != 0) {
moel@110:             report.Append("Chip ID: 0x");
moel@110:             report.AppendLine(chip.ToString("X"));            
moel@110:             report.Append("Error: Invalid address 0x");
moel@110:             report.AppendLine(address.ToString("X"));
moel@110:             report.AppendLine();
moel@110:             return;
moel@110:           }
moel@110: 
moel@110:           IT87XX it87 = new IT87XX(chip, address);
moel@110:           if (it87.IsAvailable)
moel@110:             hardware.Add(it87);
moel@110: 
moel@110:           return;
moel@110:         }
moel@110: 
moel@110:         SMSCEnter();
moel@110: 
moel@110:         chipID = ReadWord(CHIP_ID_REGISTER);
moel@110:         switch (chipID) {
moel@110:           default: chip = Chip.Unknown; break;
moel@110:         }
moel@110:         if (chip == Chip.Unknown) {
moel@110:           if (chipID != 0 && chipID != 0xffff) {
moel@110:             SMSCExit();
moel@110: 
moel@110:             report.Append("Chip ID: Unknown SMSC with ID 0x");
moel@110:             report.AppendLine(chipID.ToString("X"));
moel@110:             report.AppendLine();
moel@110:           }
moel@110:         } else {
moel@110:           SMSCExit();
moel@110: 
moel@110:           return;
moel@110:         }
moel@110:       }   
moel@110:     }
moel@110: 
moel@110:     public IHardware[] Hardware {
moel@110:       get {
moel@110:         return hardware.ToArray();
moel@110:       }
moel@110:     }
moel@110: 
moel@110:     public string GetReport() {
moel@110:       if (report.Length > 0) {
moel@110:         report.Insert(0, "LPCIO" + Environment.NewLine +
moel@110:           Environment.NewLine);        
moel@110:         return report.ToString();
moel@110:       } else
moel@110:         return null;
moel@110:     }
moel@110:   }
moel@110: }