moel@1: /*
moel@1:   
moel@1:   Version: MPL 1.1/GPL 2.0/LGPL 2.1
moel@1: 
moel@1:   The contents of this file are subject to the Mozilla Public License Version
moel@1:   1.1 (the "License"); you may not use this file except in compliance with
moel@1:   the License. You may obtain a copy of the License at
moel@1:  
moel@1:   http://www.mozilla.org/MPL/
moel@1: 
moel@1:   Software distributed under the License is distributed on an "AS IS" basis,
moel@1:   WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
moel@1:   for the specific language governing rights and limitations under the License.
moel@1: 
moel@1:   The Original Code is the Open Hardware Monitor code.
moel@1: 
moel@1:   The Initial Developer of the Original Code is 
moel@1:   Michael Möller <m.moeller@gmx.ch>.
moel@1:   Portions created by the Initial Developer are Copyright (C) 2009-2010
moel@1:   the Initial Developer. All Rights Reserved.
moel@1: 
moel@1:   Contributor(s):
moel@1: 
moel@1:   Alternatively, the contents of this file may be used under the terms of
moel@1:   either the GNU General Public License Version 2 or later (the "GPL"), or
moel@1:   the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
moel@1:   in which case the provisions of the GPL or the LGPL are applicable instead
moel@1:   of those above. If you wish to allow use of your version of this file only
moel@1:   under the terms of either the GPL or the LGPL, and not to allow others to
moel@1:   use your version of this file under the terms of the MPL, indicate your
moel@1:   decision by deleting the provisions above and replace them with the notice
moel@1:   and other provisions required by the GPL or the LGPL. If you do not delete
moel@1:   the provisions above, a recipient may use your version of this file under
moel@1:   the terms of any one of the MPL, the GPL or the LGPL.
moel@1:  
moel@1: */
moel@1: 
moel@1: using System;
moel@1: using System.Collections.Generic;
moel@1: using System.Text;
moel@1: using System.Threading;
moel@1: 
moel@1: namespace OpenHardwareMonitor.Hardware.LPC {
moel@1:   public class LPCGroup : IGroup {
moel@1:     private List<IHardware> hardware = new List<IHardware>();
moel@1: 
moel@1:     private Chip chip = Chip.Unknown;
moel@1: 
moel@1:     // I/O Ports
moel@7:     private ushort[] REGISTER_PORTS = new ushort[] { 0x2e, 0x4e };
moel@7:     private ushort[] VALUE_PORTS = new ushort[] { 0x2f, 0x4f };
moel@7: 
moel@7:     private ushort registerPort;
moel@7:     private ushort valuePort;
moel@1: 
moel@1:     // Registers
moel@1:     private const byte CONFIGURATION_CONTROL_REGISTER = 0x02;
moel@1:     private const byte DEVCIE_SELECT_REGISTER = 0x07;
moel@1:     private const byte CHIP_ID_REGISTER = 0x20;
moel@1:     private const byte CHIP_REVISION_REGISTER = 0x21;
moel@7:     private const byte BASE_ADDRESS_REGISTER = 0x60;
moel@1: 
moel@7:     private byte ReadByte(byte register) {
moel@7:       WinRing0.WriteIoPortByte(registerPort, register);
moel@7:       return WinRing0.ReadIoPortByte(valuePort);
moel@13:     } 
moel@1: 
moel@7:     private ushort ReadWord(byte register) {
moel@7:       return (ushort)((ReadByte(register) << 8) | 
moel@7:         ReadByte((byte)(register + 1)));
moel@1:     }
moel@1: 
moel@7:     private void Select(byte logicalDeviceNumber) {
moel@7:       WinRing0.WriteIoPortByte(registerPort, DEVCIE_SELECT_REGISTER);
moel@7:       WinRing0.WriteIoPortByte(valuePort, logicalDeviceNumber);
moel@1:     }
moel@1: 
moel@1:     // IT87
moel@1:     private const ushort IT8716F_CHIP_ID = 0x8716;
moel@1:     private const ushort IT8718F_CHIP_ID = 0x8718;
moel@1:     private const ushort IT8720F_CHIP_ID = 0x8720;
moel@1:     private const ushort IT8726F_CHIP_ID = 0x8726;
moel@1: 
moel@7:     private const byte IT87_ENVIRONMENT_CONTROLLER_LDN = 0x04;    
moel@1: 
moel@7:     private void IT87Enter() {
moel@7:       WinRing0.WriteIoPortByte(registerPort, 0x87);
moel@7:       WinRing0.WriteIoPortByte(registerPort, 0x01);
moel@7:       WinRing0.WriteIoPortByte(registerPort, 0x55);
moel@7:       WinRing0.WriteIoPortByte(registerPort, 0x55);
moel@1:     }
moel@1: 
moel@7:     internal void IT87Exit() {
moel@7:       WinRing0.WriteIoPortByte(registerPort, CONFIGURATION_CONTROL_REGISTER);
moel@7:       WinRing0.WriteIoPortByte(valuePort, 0x02);
moel@1:     }
moel@1: 
moel@7:     // Winbond, Fintek
moel@7:     private const byte FINTEK_VENDOR_ID_REGISTER = 0x23;
moel@7:     private const ushort FINTEK_VENDOR_ID = 0x1934;
moel@7: 
moel@7:     private const byte W83627DHG_HARDWARE_MONITOR_LDN = 0x0B;
moel@7:     private const byte F71882FG_HARDWARE_MONITOR_LDN = 0x04;
moel@7: 
moel@7:     private void WinbondFintekEnter() {
moel@7:       WinRing0.WriteIoPortByte(registerPort, 0x87);
moel@7:       WinRing0.WriteIoPortByte(registerPort, 0x87);
moel@1:     }
moel@1: 
moel@7:     private void WinbondFintekExit() {
moel@7:       WinRing0.WriteIoPortByte(registerPort, 0xAA);      
moel@1:     }
moel@1: 
moel@1:     public LPCGroup() {
moel@1:       if (!WinRing0.IsAvailable)
moel@1:         return;
moel@1: 
moel@7:       for (int i = 0; i < REGISTER_PORTS.Length; i++) {
moel@7:         registerPort = REGISTER_PORTS[i];
moel@7:         valuePort = VALUE_PORTS[i];
moel@1: 
moel@7:         WinbondFintekEnter();
moel@1: 
moel@7:         byte hardwareMonitorLDN;
moel@7:         byte id = ReadByte(CHIP_ID_REGISTER);
moel@7:         byte revision = ReadByte(CHIP_REVISION_REGISTER);
moel@7:         switch (id) {
moel@7:           case 0xA0:
moel@7:             switch (revision & 0xF0) {
moel@7:               case 0x20: 
moel@7:                 chip = Chip.W83627DHG;
moel@7:                 hardwareMonitorLDN = W83627DHG_HARDWARE_MONITOR_LDN;  
moel@7:                 break;
moel@7:               default: 
moel@7:                 chip = Chip.Unknown;
moel@7:                 hardwareMonitorLDN = 0;
moel@7:                 break;
moel@7:             } break;
moel@7:           case 0x05:
moel@7:             switch (revision) {
moel@7:               case 0x41: 
moel@7:                 chip = Chip.F71882FG;
moel@7:                 hardwareMonitorLDN = F71882FG_HARDWARE_MONITOR_LDN; 
moel@7:                 break;
moel@7:               default: 
moel@7:                 chip = Chip.Unknown; 
moel@7:                 hardwareMonitorLDN = 0;
moel@7:                 break;
moel@7:             } break;
moel@7:           default:
moel@7:             chip = Chip.Unknown; 
moel@7:             hardwareMonitorLDN = 0;
moel@7:             break;
moel@7:         }
moel@7:         if (chip != Chip.Unknown) {
moel@1: 
moel@7:           Select(hardwareMonitorLDN);
moel@7:           ushort address = ReadWord(BASE_ADDRESS_REGISTER);
moel@7:           Thread.Sleep(1);
moel@7:           ushort verify = ReadWord(BASE_ADDRESS_REGISTER);
moel@1: 
moel@7:           ushort vendorID = 0;
moel@7:           if (chip == Chip.F71882FG)
moel@7:             vendorID = ReadWord(FINTEK_VENDOR_ID_REGISTER);
moel@1: 
moel@7:           WinbondFintekExit();
moel@1: 
moel@7:           if (address != verify || address == 0 || (address & 0xF007) != 0)
moel@7:             return;
moel@7:           
moel@7:           switch (chip) {
moel@7:             case Chip.W83627DHG:
moel@7:               W83627DHG w83627dhg = new W83627DHG(revision, address);
moel@7:               if (w83627dhg.IsAvailable)
moel@7:                 hardware.Add(w83627dhg);
moel@7:               break;
moel@7:             case Chip.F71882FG:  
moel@7:               if (vendorID == FINTEK_VENDOR_ID)
moel@9:                 hardware.Add(new F71882(address));
moel@7:               break;
moel@7:             default: break;
moel@7:           }
moel@7:           
moel@7:           return;
moel@7:         }
moel@1: 
moel@7:         IT87Enter();
moel@1: 
moel@7:         switch (ReadWord(CHIP_ID_REGISTER)) {
moel@7:           case 0x8716: chip = Chip.IT8716F; break;
moel@7:           case 0x8718: chip = Chip.IT8718F; break;
moel@7:           case 0x8720: chip = Chip.IT8720F; break;
moel@7:           case 0x8726: chip = Chip.IT8726F; break;
moel@7:           default: chip = Chip.Unknown; break;
moel@7:         }
moel@7: 
moel@7:         if (chip != Chip.Unknown) {
moel@7:           Select(IT87_ENVIRONMENT_CONTROLLER_LDN);
moel@7:           ushort address = ReadWord(BASE_ADDRESS_REGISTER);
moel@7:           Thread.Sleep(1);
moel@7:           ushort verify = ReadWord(BASE_ADDRESS_REGISTER);
moel@7: 
moel@7:           IT87Exit();
moel@7: 
moel@7:           if (address != verify || address == 0 || (address & 0xF007) != 0)
moel@7:             return;
moel@7: 
moel@7:           IT87 it87 = new IT87(chip, address);
moel@7:           if (it87.IsAvailable)
moel@7:             hardware.Add(it87);
moel@7: 
moel@1:           return;
moel@7:         }
moel@7:       }   
moel@1:     }
moel@1: 
moel@1:     public IHardware[] Hardware {
moel@1:       get {
moel@1:         return hardware.ToArray();
moel@1:       }
moel@1:     }
moel@1: 
moel@1:     public string GetReport() {
moel@1:       return null;
moel@1:     }
moel@1: 
moel@1:     public void Close() { }
moel@1:   }
moel@1: }