Hardware/LPC/W836XX.cs
author moel.mich
Mon, 08 Feb 2010 20:18:25 +0000
changeset 34 dc276daadb2c
child 53 ccba498488e8
permissions -rw-r--r--
Added support for Winbond W83627EHF, W83667HG, W83667HG-B mainboard chips.
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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.Drawing;
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using System.Text;
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namespace OpenHardwareMonitor.Hardware.LPC {
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  public class W836XX : LPCHardware, IHardware {
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    private ushort address;
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    private byte revision;
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    private bool available;
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    private Sensor[] temperatures;
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    private Sensor[] fans;
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    private Sensor[] voltages;
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    private float[] voltageGains;
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    private string[] fanNames;
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    // Consts 
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    private const ushort WINBOND_VENDOR_ID = 0x5CA3;
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    private const byte HIGH_BYTE = 0x80;
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    // Hardware Monitor
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    private const byte ADDRESS_REGISTER_OFFSET = 0x05;
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    private const byte DATA_REGISTER_OFFSET = 0x06;
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    // Hardware Monitor Registers
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    private const byte VOLTAGE_BASE_REG = 0x20;
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    private const byte BANK_SELECT_REGISTER = 0x04E;
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    private const byte VENDOR_ID_REGISTER = 0x4F;
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    private const byte TEMPERATURE_BASE_REG = 0x50;
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    private const byte TEMPERATURE_SYS_REG = 0x27;    
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    private byte[] FAN_TACHO_REG = new byte[] { 0x28, 0x29, 0x2A, 0x3F, 0x53 };
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    private byte[] FAN_TACHO_BANK = new byte[] { 0, 0, 0, 0, 5 };       
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    private byte[] FAN_BIT_REG = new byte[] { 0x47, 0x4B, 0x4C, 0x59, 0x5D };
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    private byte[] FAN_DIV_BIT0 = new byte[] { 36, 38, 30, 8, 10 };
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    private byte[] FAN_DIV_BIT1 = new byte[] { 37, 39, 31, 9, 11 };
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    private byte[] FAN_DIV_BIT2 = new byte[] { 5, 6, 7, 23, 15 };
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    private byte ReadByte(byte bank, byte register) {
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      WinRing0.WriteIoPortByte(
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         (ushort)(address + ADDRESS_REGISTER_OFFSET), BANK_SELECT_REGISTER);
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      WinRing0.WriteIoPortByte(
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         (ushort)(address + DATA_REGISTER_OFFSET), bank);
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      WinRing0.WriteIoPortByte(
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         (ushort)(address + ADDRESS_REGISTER_OFFSET), register);
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      return WinRing0.ReadIoPortByte(
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        (ushort)(address + DATA_REGISTER_OFFSET));
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    } 
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    public W836XX(Chip chip, byte revision, ushort address) 
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      : base(chip)
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    {
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      this.address = address;
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      this.revision = revision;
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      available = IsWinbondVendor();
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      temperatures = new Sensor[3];
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      temperatures[0] = new Sensor("CPU", 0, SensorType.Temperature, this);
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      temperatures[1] = new Sensor("Auxiliary", 1, SensorType.Temperature, this);
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      temperatures[2] = new Sensor("System", 2, SensorType.Temperature, this);
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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.W83667HG:
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        case Chip.W83667HGB: 
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          fanNames = new string[] { "System", "CPU", "Auxiliary", 
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            "CPU #2", "Auxiliary #2" };
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          voltageGains = new float[] { 1, 1, 1, 2, 1, 1, 1, 2 };
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          voltages = new Sensor[3];
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          voltages[0] = new Sensor("CPU VCore", 0, SensorType.Voltage, this);
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          voltages[1] = new Sensor("+3.3V", 3, SensorType.Voltage, this);
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          voltages[2] = new Sensor("Battery", 7, SensorType.Voltage, this);
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          break;
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        case Chip.W83627HF: 
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          fanNames = new string[] { "Fan #1", "Fan #2", "Fan #3" };
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          voltageGains = new float[] { 2, 1, 2, 1, 1, 1, 1, 2 };
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          voltages = new Sensor[3];
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          voltages[0] = new Sensor("CPU VCore", 0, SensorType.Voltage, this);
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          voltages[1] = new Sensor("+3.3V", 2, SensorType.Voltage, this);
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          voltages[2] = new Sensor("Battery", 7, SensorType.Voltage, this);
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          break;
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        default: fanNames = new string[0];
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          break;
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      }
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      fans = new Sensor[fanNames.Length];
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      for (int i = 0; i < fanNames.Length; i++)
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        fans[i] = new Sensor(fanNames[i], i, SensorType.Fan, this);
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    }
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    public bool IsAvailable {
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      get { return available; }
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    }        
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    private bool IsWinbondVendor() {
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      ushort vendorId =
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        (ushort)((ReadByte(HIGH_BYTE, VENDOR_ID_REGISTER) << 8) |
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           ReadByte(0, VENDOR_ID_REGISTER));
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      return vendorId == WINBOND_VENDOR_ID;
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    }
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    public void Update() {
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      foreach (Sensor sensor in voltages) {
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        if (sensor.Index < 7) {
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          int value = ReadByte(0, (byte)(VOLTAGE_BASE_REG + sensor.Index));
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          sensor.Value = 0.008f * voltageGains[sensor.Index] * value;
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          if (sensor.Value > 0)
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            ActivateSensor(sensor);
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          else
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            DeactivateSensor(sensor);
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        } else {
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          // Battery voltage
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          bool valid = (ReadByte(0, 0x5D) & 0x01) > 0;
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          if (valid) {
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            sensor.Value = 
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              0.008f * voltageGains[sensor.Index] * ReadByte(5, 0x51);
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            ActivateSensor(sensor);
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          } else
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            DeactivateSensor(sensor);
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        }
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      }
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      foreach (Sensor sensor in temperatures) {
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        int value;
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        if (sensor.Index < 2) {
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          value = (sbyte)ReadByte((byte)(sensor.Index + 1), TEMPERATURE_BASE_REG);
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          value = (value << 1) | ReadByte((byte)(sensor.Index + 1),
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            (byte)(TEMPERATURE_BASE_REG + 1)) >> 7;
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        } else {
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          value = (sbyte)ReadByte(0, TEMPERATURE_SYS_REG) << 1;
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        }
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        sensor.Value = value / 2.0f;
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        if (value < 0xFE)
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          ActivateSensor(sensor);
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        else
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          DeactivateSensor(sensor);
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      }
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      long bits = 0;
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      for (int i = 0; i < FAN_BIT_REG.Length; i++)
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        bits = (bits << 8) | ReadByte(0, FAN_BIT_REG[i]);
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      foreach (Sensor sensor in fans) {
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        int count = ReadByte(FAN_TACHO_BANK[sensor.Index], 
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          FAN_TACHO_REG[sensor.Index]);
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        int divisorBits = (int)(
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          (((bits >> FAN_DIV_BIT2[sensor.Index]) & 1) << 2) |
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          (((bits >> FAN_DIV_BIT1[sensor.Index]) & 1) << 1) |
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           ((bits >> FAN_DIV_BIT0[sensor.Index]) & 1));
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        int divisor = 1 << divisorBits;
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        float value = (count < 0xff) ? 1.35e6f / (count * divisor) : 0;
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        sensor.Value = value;
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        if (value > 0)
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          ActivateSensor(sensor);        
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      }     
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    }
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    public string GetReport() {
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      StringBuilder r = new StringBuilder();
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      r.AppendLine("LPC " + this.GetType().Name);
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      r.AppendLine();
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      r.Append("Chip ID: 0x"); r.AppendLine(chip.ToString("X"));
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      r.Append("Chip revision: 0x"); r.AppendLine(revision.ToString("X"));
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      r.Append("Base Adress: 0x"); r.AppendLine(address.ToString("X4"));
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      r.AppendLine();
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      r.AppendLine("Hardware Monitor Registers");
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      r.AppendLine();
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      r.AppendLine("      00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F");
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      r.AppendLine();
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      for (int i = 0; i < 0x7; i++) {
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        r.Append(" "); r.Append((i << 4).ToString("X2")); r.Append("  ");
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        for (int j = 0; j <= 0xF; j++) {
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          r.Append(" ");
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          r.Append(ReadByte(0, (byte)((i << 4) | j)).ToString("X2"));
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        }
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        r.AppendLine();
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      }
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      for (int k = 1; k <= 5; k++) {
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        r.AppendLine("Bank " + k);
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        for (int i = 0x5; i < 0x6; i++) {
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          r.Append(" "); r.Append((i << 4).ToString("X2")); r.Append("  ");
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          for (int j = 0; j <= 0xF; j++) {
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            r.Append(" ");
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            r.Append(ReadByte((byte)(k),
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              (byte)((i << 4) | j)).ToString("X2"));
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          }
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          r.AppendLine();
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        }
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      }
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      r.AppendLine();
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      return r.ToString();
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    }
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  }
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}