1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/Hardware/LPC/IT87XX.cs Mon Feb 01 20:16:26 2010 +0000
1.3 @@ -0,0 +1,225 @@
1.4 +/*
1.5 +
1.6 + Version: MPL 1.1/GPL 2.0/LGPL 2.1
1.7 +
1.8 + The contents of this file are subject to the Mozilla Public License Version
1.9 + 1.1 (the "License"); you may not use this file except in compliance with
1.10 + the License. You may obtain a copy of the License at
1.11 +
1.12 + http://www.mozilla.org/MPL/
1.13 +
1.14 + Software distributed under the License is distributed on an "AS IS" basis,
1.15 + WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
1.16 + for the specific language governing rights and limitations under the License.
1.17 +
1.18 + The Original Code is the Open Hardware Monitor code.
1.19 +
1.20 + The Initial Developer of the Original Code is
1.21 + Michael Möller <m.moeller@gmx.ch>.
1.22 + Portions created by the Initial Developer are Copyright (C) 2009-2010
1.23 + the Initial Developer. All Rights Reserved.
1.24 +
1.25 + Contributor(s):
1.26 +
1.27 + Alternatively, the contents of this file may be used under the terms of
1.28 + either the GNU General Public License Version 2 or later (the "GPL"), or
1.29 + the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
1.30 + in which case the provisions of the GPL or the LGPL are applicable instead
1.31 + of those above. If you wish to allow use of your version of this file only
1.32 + under the terms of either the GPL or the LGPL, and not to allow others to
1.33 + use your version of this file under the terms of the MPL, indicate your
1.34 + decision by deleting the provisions above and replace them with the notice
1.35 + and other provisions required by the GPL or the LGPL. If you do not delete
1.36 + the provisions above, a recipient may use your version of this file under
1.37 + the terms of any one of the MPL, the GPL or the LGPL.
1.38 +
1.39 +*/
1.40 +
1.41 +using System;
1.42 +using System.Collections.Generic;
1.43 +using System.Drawing;
1.44 +using System.Text;
1.45 +
1.46 +namespace OpenHardwareMonitor.Hardware.LPC {
1.47 + public class IT87XX : IHardware {
1.48 +
1.49 + private string name;
1.50 + private Image icon;
1.51 +
1.52 + private bool available = false;
1.53 + private Chip chip;
1.54 + private ushort address;
1.55 +
1.56 + private Sensor[] temperatures;
1.57 + private Sensor[] fans;
1.58 + private Sensor[] voltages;
1.59 + private List<ISensor> active = new List<ISensor>();
1.60 + private float[] voltageGains;
1.61 +
1.62 + // Consts
1.63 + private const byte ITE_VENDOR_ID = 0x90;
1.64 +
1.65 + // Environment Controller
1.66 + private const byte ADDRESS_REGISTER_OFFSET = 0x05;
1.67 + private const byte DATA_REGISTER_OFFSET = 0x06;
1.68 +
1.69 + // Environment Controller Registers
1.70 + private const byte CONFIGURATION_REGISTER = 0x00;
1.71 + private const byte TEMPERATURE_BASE_REG = 0x29;
1.72 + private const byte VENDOR_ID_REGISTER = 0x58;
1.73 + private const byte FAN_TACHOMETER_16_BIT_ENABLE_REGISTER = 0x0c;
1.74 + private byte[] FAN_TACHOMETER_REG =
1.75 + new byte[] { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };
1.76 + private byte[] FAN_TACHOMETER_EXT_REG =
1.77 + new byte[] { 0x18, 0x19, 0x1a, 0x81, 0x83 };
1.78 + private const byte VOLTAGE_BASE_REG = 0x20;
1.79 +
1.80 + private byte ReadByte(byte register) {
1.81 + WinRing0.WriteIoPortByte(
1.82 + (ushort)(address + ADDRESS_REGISTER_OFFSET), register);
1.83 + return WinRing0.ReadIoPortByte((ushort)(address + DATA_REGISTER_OFFSET));
1.84 + }
1.85 +
1.86 + public IT87XX(Chip chip, ushort address) {
1.87 +
1.88 + this.chip = chip;
1.89 + this.address = address;
1.90 +
1.91 + switch (chip) {
1.92 + case Chip.IT8716: name = "ITE IT8716"; break;
1.93 + case Chip.IT8718: name = "ITE IT8718"; break;
1.94 + case Chip.IT8720: name = "ITE IT8720"; break;
1.95 + case Chip.IT8726: name = "ITE IT8726"; break;
1.96 + default: return;
1.97 + }
1.98 +
1.99 + // Check vendor id
1.100 + byte vendorId = ReadByte(VENDOR_ID_REGISTER);
1.101 + if (vendorId != ITE_VENDOR_ID)
1.102 + return;
1.103 +
1.104 + // Bit 0x10 of the configuration register should always be 1
1.105 + if ((ReadByte(CONFIGURATION_REGISTER) & 0x10) == 0)
1.106 + return;
1.107 +
1.108 + temperatures = new Sensor[3];
1.109 + for (int i = 0; i < temperatures.Length; i++)
1.110 + temperatures[i] = new Sensor("Temperature #" + (i + 1), i,
1.111 + SensorType.Temperature, this);
1.112 +
1.113 + fans = new Sensor[5];
1.114 + for (int i = 0; i < fans.Length; i++)
1.115 + fans[i] = new Sensor("Fan #" + (i + 1), i, SensorType.Fan, this);
1.116 +
1.117 + voltageGains = new float[] {
1.118 + 1, 1, 1, (6.8f / 10 + 1), 1, 1, 1, 1, 1 };
1.119 +
1.120 + voltages = new Sensor[2];
1.121 + voltages[0] = new Sensor("CPU VCore", 0, SensorType.Voltage, this);
1.122 + voltages[1] = new Sensor("Battery", 8, SensorType.Voltage, this);
1.123 +
1.124 + available = true;
1.125 + icon = Utilities.EmbeddedResources.GetImage("chip.png");
1.126 + }
1.127 +
1.128 + public bool IsAvailable {
1.129 + get { return available; }
1.130 + }
1.131 +
1.132 + public string Name {
1.133 + get { return name; }
1.134 + }
1.135 +
1.136 + public string Identifier {
1.137 + get { return "/lpc/it87"; }
1.138 + }
1.139 +
1.140 + public Image Icon {
1.141 + get { return icon; }
1.142 + }
1.143 +
1.144 + public ISensor[] Sensors {
1.145 + get { return active.ToArray(); }
1.146 + }
1.147 +
1.148 + public string GetReport() {
1.149 + StringBuilder r = new StringBuilder();
1.150 +
1.151 + r.AppendLine("LPC IT87XX");
1.152 + r.AppendLine();
1.153 + r.Append("Chip ID: 0x"); r.AppendLine(chip.ToString("X"));
1.154 + r.Append("Chip Name: "); r.AppendLine(name);
1.155 + r.Append("Base Address: 0x"); r.AppendLine(address.ToString("X4"));
1.156 + r.AppendLine();
1.157 + r.AppendLine("Environment Controller Registers");
1.158 + r.AppendLine();
1.159 +
1.160 + r.AppendLine(" 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F");
1.161 + r.AppendLine();
1.162 + for (int i = 0; i <= 0xA; i++) {
1.163 + r.Append(" "); r.Append((i << 4).ToString("X2")); r.Append(" ");
1.164 + for (int j = 0; j <= 0xF; j++) {
1.165 + r.Append(" ");
1.166 + r.Append(ReadByte((byte)((i << 4) | j)).ToString("X2"));
1.167 + }
1.168 + r.AppendLine();
1.169 + }
1.170 + r.AppendLine();
1.171 +
1.172 + return r.ToString();
1.173 + }
1.174 +
1.175 + public void Update() {
1.176 +
1.177 + foreach (Sensor sensor in voltages) {
1.178 + int value = ReadByte((byte)(VOLTAGE_BASE_REG + sensor.Index));
1.179 + sensor.Value = voltageGains[sensor.Index] * 0.001f * (value << 4);
1.180 + if (sensor.Value > 0)
1.181 + ActivateSensor(sensor);
1.182 + else
1.183 + DeactivateSensor(sensor);
1.184 + }
1.185 +
1.186 + foreach (Sensor sensor in temperatures) {
1.187 + sbyte value = (sbyte)ReadByte((byte)(TEMPERATURE_BASE_REG + sensor.Index));
1.188 + sensor.Value = value;
1.189 + if (value < sbyte.MaxValue && value > 0)
1.190 + ActivateSensor(sensor);
1.191 + else
1.192 + DeactivateSensor(sensor);
1.193 + }
1.194 +
1.195 + foreach (Sensor sensor in fans) {
1.196 + int value = ReadByte(FAN_TACHOMETER_REG[sensor.Index]);
1.197 + value |= ReadByte(FAN_TACHOMETER_EXT_REG[sensor.Index]) << 8;
1.198 +
1.199 + if (value > 0) {
1.200 + sensor.Value = (value < 0xffff) ? 1.35e6f / ((value) * 2) : 0;
1.201 + ActivateSensor(sensor);
1.202 + } else {
1.203 + DeactivateSensor(sensor);
1.204 + }
1.205 + }
1.206 + }
1.207 +
1.208 + private void ActivateSensor(Sensor sensor) {
1.209 + if (!active.Contains(sensor)) {
1.210 + active.Add(sensor);
1.211 + if (SensorAdded != null)
1.212 + SensorAdded(sensor);
1.213 + }
1.214 + }
1.215 +
1.216 + private void DeactivateSensor(Sensor sensor) {
1.217 + if (active.Contains(sensor)) {
1.218 + active.Remove(sensor);
1.219 + if (SensorRemoved != null)
1.220 + SensorRemoved(sensor);
1.221 + }
1.222 + }
1.223 +
1.224 + public event SensorEventHandler SensorAdded;
1.225 + public event SensorEventHandler SensorRemoved;
1.226 +
1.227 + }
1.228 +}