moel@16: /* moel@16: moel@16: Version: MPL 1.1/GPL 2.0/LGPL 2.1 moel@16: moel@16: The contents of this file are subject to the Mozilla Public License Version moel@16: 1.1 (the "License"); you may not use this file except in compliance with moel@16: the License. You may obtain a copy of the License at moel@16: moel@16: http://www.mozilla.org/MPL/ moel@16: moel@16: Software distributed under the License is distributed on an "AS IS" basis, moel@16: WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License moel@16: for the specific language governing rights and limitations under the License. moel@16: moel@16: The Original Code is the Open Hardware Monitor code. moel@16: moel@16: The Initial Developer of the Original Code is moel@16: Michael Möller . moel@16: Portions created by the Initial Developer are Copyright (C) 2009-2010 moel@16: the Initial Developer. All Rights Reserved. moel@16: moel@16: Contributor(s): moel@16: moel@16: Alternatively, the contents of this file may be used under the terms of moel@16: either the GNU General Public License Version 2 or later (the "GPL"), or moel@16: the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), moel@16: in which case the provisions of the GPL or the LGPL are applicable instead moel@16: of those above. If you wish to allow use of your version of this file only moel@16: under the terms of either the GPL or the LGPL, and not to allow others to moel@16: use your version of this file under the terms of the MPL, indicate your moel@16: decision by deleting the provisions above and replace them with the notice moel@16: and other provisions required by the GPL or the LGPL. If you do not delete moel@16: the provisions above, a recipient may use your version of this file under moel@16: the terms of any one of the MPL, the GPL or the LGPL. moel@16: moel@16: */ moel@16: moel@166: using System.Globalization; moel@16: using System.Text; moel@16: moel@16: namespace OpenHardwareMonitor.Hardware.LPC { moel@165: internal class IT87XX : ISuperIO { moel@130: moel@195: private readonly ushort address; moel@195: private readonly Chip chip; moel@195: private readonly byte version; moel@16: moel@78: private readonly ushort addressReg; moel@78: private readonly ushort dataReg; moel@78: moel@195: private readonly float?[] voltages = new float?[0]; moel@195: private readonly float?[] temperatures = new float?[0]; moel@195: private readonly float?[] fans = new float?[0]; moel@170: moel@170: private readonly float voltageGain; moel@16: moel@16: // Consts moel@16: private const byte ITE_VENDOR_ID = 0x90; moel@16: moel@16: // Environment Controller moel@16: private const byte ADDRESS_REGISTER_OFFSET = 0x05; moel@16: private const byte DATA_REGISTER_OFFSET = 0x06; moel@16: moel@16: // Environment Controller Registers moel@16: private const byte CONFIGURATION_REGISTER = 0x00; moel@16: private const byte TEMPERATURE_BASE_REG = 0x29; moel@16: private const byte VENDOR_ID_REGISTER = 0x58; moel@16: private const byte FAN_TACHOMETER_16_BIT_ENABLE_REGISTER = 0x0c; moel@195: private readonly byte[] FAN_TACHOMETER_REG = moel@16: new byte[] { 0x0d, 0x0e, 0x0f, 0x80, 0x82 }; moel@195: private readonly byte[] FAN_TACHOMETER_EXT_REG = moel@16: new byte[] { 0x18, 0x19, 0x1a, 0x81, 0x83 }; moel@78: private const byte VOLTAGE_BASE_REG = 0x20; moel@78: moel@78: private byte ReadByte(byte register, out bool valid) { moel@78: WinRing0.WriteIoPortByte(addressReg, register); moel@78: byte value = WinRing0.ReadIoPortByte(dataReg); moel@78: valid = register == WinRing0.ReadIoPortByte(addressReg); moel@78: return value; moel@144: } moel@16: moel@145: public IT87XX(Chip chip, ushort address, byte version) { moel@16: moel@16: this.address = address; moel@130: this.chip = chip; moel@145: this.version = version; moel@78: this.addressReg = (ushort)(address + ADDRESS_REGISTER_OFFSET); moel@78: this.dataReg = (ushort)(address + DATA_REGISTER_OFFSET); moel@16: moel@16: // Check vendor id moel@78: bool valid; moel@78: byte vendorId = ReadByte(VENDOR_ID_REGISTER, out valid); moel@78: if (!valid || vendorId != ITE_VENDOR_ID) moel@16: return; moel@16: moel@16: // Bit 0x10 of the configuration register should always be 1 moel@78: if ((ReadByte(CONFIGURATION_REGISTER, out valid) & 0x10) == 0) moel@78: return; moel@78: if (!valid) moel@16: return; moel@16: moel@130: voltages = new float?[9]; moel@130: temperatures = new float?[3]; moel@130: fans = new float?[5]; moel@170: moel@170: // The IT8721F uses a 12mV resultion ADC, all others 16mV moel@170: if (chip == Chip.IT8721F) { moel@170: voltageGain = 0.012f; moel@170: } else { moel@170: voltageGain = 0.016f; moel@170: } moel@16: } moel@16: moel@130: public Chip Chip { get { return chip; } } moel@130: public float?[] Voltages { get { return voltages; } } moel@130: public float?[] Temperatures { get { return temperatures; } } moel@130: public float?[] Fans { get { return fans; } } moel@16: moel@130: public string GetReport() { moel@16: StringBuilder r = new StringBuilder(); moel@16: moel@31: r.AppendLine("LPC " + this.GetType().Name); moel@16: r.AppendLine(); moel@16: r.Append("Chip ID: 0x"); r.AppendLine(chip.ToString("X")); moel@166: r.Append("Chip Version: 0x"); r.AppendLine( moel@166: version.ToString("X", CultureInfo.InvariantCulture)); moel@166: r.Append("Base Address: 0x"); r.AppendLine( moel@166: address.ToString("X4", CultureInfo.InvariantCulture)); moel@16: r.AppendLine(); moel@162: moel@163: if (!WinRing0.WaitIsaBusMutex(100)) moel@162: return r.ToString(); moel@162: moel@16: r.AppendLine("Environment Controller Registers"); moel@16: r.AppendLine(); moel@16: r.AppendLine(" 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F"); moel@16: r.AppendLine(); moel@16: for (int i = 0; i <= 0xA; i++) { moel@166: r.Append(" "); moel@166: r.Append((i << 4).ToString("X2", CultureInfo.InvariantCulture)); moel@166: r.Append(" "); moel@16: for (int j = 0; j <= 0xF; j++) { moel@16: r.Append(" "); moel@78: bool valid; moel@78: byte value = ReadByte((byte)((i << 4) | j), out valid); moel@195: r.Append( moel@195: valid ? value.ToString("X2", CultureInfo.InvariantCulture) : "??"); moel@16: } moel@16: r.AppendLine(); moel@16: } moel@16: r.AppendLine(); moel@16: moel@162: WinRing0.ReleaseIsaBusMutex(); moel@162: moel@16: return r.ToString(); moel@16: } moel@16: moel@130: public void Update() { moel@163: if (!WinRing0.WaitIsaBusMutex(10)) moel@162: return; moel@16: moel@130: for (int i = 0; i < voltages.Length; i++) { moel@78: bool valid; moel@170: moel@170: float value = moel@170: voltageGain * ReadByte((byte)(VOLTAGE_BASE_REG + i), out valid); moel@170: moel@130: if (!valid) moel@130: continue; moel@130: if (value > 0) moel@130: voltages[i] = value; moel@130: else moel@130: voltages[i] = null; moel@130: } moel@130: moel@130: for (int i = 0; i < temperatures.Length; i++) { moel@130: bool valid; moel@130: sbyte value = (sbyte)ReadByte( moel@130: (byte)(TEMPERATURE_BASE_REG + i), out valid); moel@78: if (!valid) moel@78: continue; moel@78: moel@130: if (value < sbyte.MaxValue && value > 0) moel@130: temperatures[i] = value; moel@130: else moel@130: temperatures[i] = null; moel@16: } moel@16: moel@130: for (int i = 0; i < fans.Length; i++) { moel@78: bool valid; moel@130: int value = ReadByte(FAN_TACHOMETER_REG[i], out valid); moel@78: if (!valid) moel@78: continue; moel@130: value |= ReadByte(FAN_TACHOMETER_EXT_REG[i], out valid) << 8; moel@78: if (!valid) moel@78: continue; moel@16: moel@36: if (value > 0x3f) { moel@130: fans[i] = (value < 0xffff) ? 1.35e6f / ((value) * 2) : 0; moel@16: } else { moel@130: fans[i] = null; moel@16: } moel@162: } moel@162: moel@162: WinRing0.ReleaseIsaBusMutex(); moel@126: } moel@130: } moel@16: }