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/*
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This Source Code Form is subject to the terms of the Mozilla Public
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License, v. 2.0. If a copy of the MPL was not distributed with this
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file, You can obtain one at http://mozilla.org/MPL/2.0/.
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Copyright (C) 2009-2011 Michael Möller <mmoeller@openhardwaremonitor.org>
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*/
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using System.Globalization;
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using System.Text;
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namespace OpenHardwareMonitor.Hardware.LPC {
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internal class F718XX : ISuperIO {
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private readonly ushort address;
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private readonly Chip chip;
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private readonly float?[] voltages;
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private readonly float?[] temperatures;
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private readonly float?[] fans;
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private readonly float?[] controls;
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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 TEMPERATURE_CONFIG_REG = 0x69;
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private const byte TEMPERATURE_BASE_REG = 0x70;
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private readonly byte[] FAN_TACHOMETER_REG =
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new byte[] { 0xA0, 0xB0, 0xC0, 0xD0 };
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private byte ReadByte(byte register) {
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Ring0.WriteIoPort(
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(ushort)(address + ADDRESS_REGISTER_OFFSET), register);
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return Ring0.ReadIoPort((ushort)(address + DATA_REGISTER_OFFSET));
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}
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public byte? ReadGPIO(int index) {
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return null;
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}
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public void WriteGPIO(int index, byte value) { }
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public void SetControl(int index, byte? value) { }
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public F718XX(Chip chip, ushort address) {
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this.address = address;
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this.chip = chip;
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voltages = new float?[chip == Chip.F71858 ? 3 : 9];
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temperatures = new float?[3];
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fans = new float?[chip == Chip.F71882 || chip == Chip.F71858? 4 : 3];
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controls = new float?[0];
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}
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public Chip Chip { get { return chip; } }
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public float?[] Voltages { get { return voltages; } }
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public float?[] Temperatures { get { return temperatures; } }
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public float?[] Fans { get { return fans; } }
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public float?[] Controls { get { return controls; } }
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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("Base Adress: 0x");
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r.AppendLine(address.ToString("X4", CultureInfo.InvariantCulture));
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r.AppendLine();
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if (!Ring0.WaitIsaBusMutex(100))
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return r.ToString();
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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 <= 0xF; i++) {
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r.Append(" ");
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r.Append((i << 4).ToString("X2", CultureInfo.InvariantCulture));
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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)((i << 4) | j)).ToString("X2",
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CultureInfo.InvariantCulture));
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}
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r.AppendLine();
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}
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r.AppendLine();
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Ring0.ReleaseIsaBusMutex();
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return r.ToString();
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}
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public void Update() {
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if (!Ring0.WaitIsaBusMutex(10))
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return;
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for (int i = 0; i < voltages.Length; i++) {
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int value = ReadByte((byte)(VOLTAGE_BASE_REG + i));
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voltages[i] = 0.008f * value;
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}
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for (int i = 0; i < temperatures.Length; i++) {
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switch (chip) {
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case Chip.F71858: {
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int tableMode = 0x3 & ReadByte(TEMPERATURE_CONFIG_REG);
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int high =
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ReadByte((byte)(TEMPERATURE_BASE_REG + 2 * i));
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int low =
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ReadByte((byte)(TEMPERATURE_BASE_REG + 2 * i + 1));
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if (high != 0xbb && high != 0xcc) {
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int bits = 0;
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switch (tableMode) {
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case 0: bits = 0; break;
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case 1: bits = 0; break;
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case 2: bits = (high & 0x80) << 8; break;
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case 3: bits = (low & 0x01) << 15; break;
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}
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bits |= high << 7;
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bits |= (low & 0xe0) >> 1;
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short value = (short)(bits & 0xfff0);
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temperatures[i] = value / 128.0f;
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} else {
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temperatures[i] = null;
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}
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} break;
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default: {
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sbyte value = (sbyte)ReadByte((byte)(
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TEMPERATURE_BASE_REG + 2 * (i + 1)));
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if (value < sbyte.MaxValue && value > 0)
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temperatures[i] = value;
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else
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temperatures[i] = null;
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} break;
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}
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}
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for (int i = 0; i < fans.Length; i++) {
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int value = ReadByte(FAN_TACHOMETER_REG[i]) << 8;
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value |= ReadByte((byte)(FAN_TACHOMETER_REG[i] + 1));
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if (value > 0)
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fans[i] = (value < 0x0fff) ? 1.5e6f / value : 0;
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else
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fans[i] = null;
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}
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Ring0.ReleaseIsaBusMutex();
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}
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}
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}
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