207 lines
6.9 KiB
C#
207 lines
6.9 KiB
C#
/*
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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 IT87XX : LPCHardware, IHardware {
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private bool available = false;
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private ushort address;
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private readonly ushort addressReg;
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private readonly ushort dataReg;
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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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// Consts
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private const byte ITE_VENDOR_ID = 0x90;
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// Environment Controller
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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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// Environment Controller Registers
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private const byte CONFIGURATION_REGISTER = 0x00;
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private const byte TEMPERATURE_BASE_REG = 0x29;
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private const byte VENDOR_ID_REGISTER = 0x58;
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private const byte FAN_TACHOMETER_16_BIT_ENABLE_REGISTER = 0x0c;
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private byte[] FAN_TACHOMETER_REG =
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new byte[] { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };
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private byte[] FAN_TACHOMETER_EXT_REG =
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new byte[] { 0x18, 0x19, 0x1a, 0x81, 0x83 };
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private const byte VOLTAGE_BASE_REG = 0x20;
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private byte ReadByte(byte register, out bool valid) {
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WinRing0.WriteIoPortByte(addressReg, register);
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byte value = WinRing0.ReadIoPortByte(dataReg);
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valid = register == WinRing0.ReadIoPortByte(addressReg);
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return value;
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}
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public IT87XX(Chip chip, ushort address) : base (chip) {
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this.address = address;
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this.addressReg = (ushort)(address + ADDRESS_REGISTER_OFFSET);
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this.dataReg = (ushort)(address + DATA_REGISTER_OFFSET);
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// Check vendor id
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bool valid;
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byte vendorId = ReadByte(VENDOR_ID_REGISTER, out valid);
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if (!valid || vendorId != ITE_VENDOR_ID)
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return;
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// Bit 0x10 of the configuration register should always be 1
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if ((ReadByte(CONFIGURATION_REGISTER, out valid) & 0x10) == 0)
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return;
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if (!valid)
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return;
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temperatures = new Sensor[3];
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for (int i = 0; i < temperatures.Length; i++)
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temperatures[i] = new Sensor("Temperature #" + (i + 1), i, null,
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SensorType.Temperature, this, new ParameterDescription[] {
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new ParameterDescription("Offset", "Temperature offset.", 0)
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});
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fans = new Sensor[5];
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for (int i = 0; i < fans.Length; i++)
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fans[i] = new Sensor("Fan #" + (i + 1), i, SensorType.Fan, this);
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voltageGains = new float[] {
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1, 1, 1, (6.8f / 10 + 1), 1, 1, 1, 1, 1 };
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voltages = new Sensor[2];
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voltages[0] = new Sensor("CPU VCore", 0, SensorType.Voltage, this);
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voltages[1] = new Sensor("Battery", 8, SensorType.Voltage, this);
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available = true;
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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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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 Name: "); r.AppendLine(name);
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r.Append("Base Address: 0x"); r.AppendLine(address.ToString("X4"));
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r.AppendLine();
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r.AppendLine("Environment Controller 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 <= 0xA; 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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bool valid;
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byte value = ReadByte((byte)((i << 4) | j), out valid);
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if (valid)
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r.Append(value.ToString("X2"));
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else
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r.Append("??");
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}
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r.AppendLine();
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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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public void Update() {
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foreach (Sensor sensor in voltages) {
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bool valid;
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int value = ReadByte(
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(byte)(VOLTAGE_BASE_REG + sensor.Index), out valid);
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if (!valid)
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continue;
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sensor.Value = voltageGains[sensor.Index] * 0.001f * (value << 4);
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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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}
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foreach (Sensor sensor in temperatures) {
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bool valid;
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sbyte value = (sbyte)ReadByte(
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(byte)(TEMPERATURE_BASE_REG + sensor.Index), out valid);
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if (!valid)
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continue;
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sensor.Value = value + sensor.Parameters[0].Value;
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if (value < sbyte.MaxValue && value > 0)
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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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foreach (Sensor sensor in fans) {
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bool valid;
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int value = ReadByte(FAN_TACHOMETER_REG[sensor.Index], out valid);
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if (!valid)
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continue;
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value |= ReadByte(FAN_TACHOMETER_EXT_REG[sensor.Index], out valid) << 8;
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if (!valid)
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continue;
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if (value > 0x3f) {
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sensor.Value = (value < 0xffff) ? 1.35e6f / ((value) * 2) : 0;
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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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}
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}
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}
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}
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}
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