Ezra Indrastata
af7fca1397
* Check before entering bugged 0x4E IT87 * Specify fan control registers for IT8792E * Refactor chip ID reading using TryReadWord * Introduce ECIO gigabyte EC control * Add ECIO compatibility check * Refactor to consider result of read/write * Refactor styles and syntaxes * Rename SMFI to Smfi * Remove public modifier for consistency * Update code style * Increase timeout and remove sleep for ecio waits * Remove extra WaitIBE
78 lines
2.2 KiB
C#
78 lines
2.2 KiB
C#
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
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// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// Copyright (C) LibreHardwareMonitor and Contributors.
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// Partial Copyright (C) Michael Möller <mmoeller@openhardwaremonitor.org> and Contributors.
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// All Rights Reserved.
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using System;
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using System.Threading;
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namespace LibreHardwareMonitor.Hardware.Motherboard.Lpc;
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internal class EcioPortGigabyteController : IGigabyteController
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{
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private const ushort ControllerVersionOffset = 0x00;
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private const ushort ControllerEnableRegister = 0x47;
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private const ushort ControllerFanControlArea = 0x900;
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private const ushort EcioRegisterPort = 0x3F4;
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private const ushort EcioValuePort = 0x3F0;
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private readonly IT879xEcioPort _port;
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private bool? _initialState;
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private EcioPortGigabyteController(IT879xEcioPort port)
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{
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_port = port;
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}
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public static EcioPortGigabyteController TryCreate()
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{
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IT879xEcioPort port = new(EcioRegisterPort, EcioValuePort);
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// Check compatibility by querying its version.
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if (!port.Read(ControllerFanControlArea + ControllerVersionOffset, out byte majorVersion) || majorVersion != 1)
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{
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return null;
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}
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return new EcioPortGigabyteController(port);
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}
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public bool Enable(bool enabled)
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{
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ushort offset = ControllerFanControlArea + ControllerEnableRegister;
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if (!_port.Read(offset, out byte bCurrent))
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{
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return false;
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}
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bool current = Convert.ToBoolean(bCurrent);
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_initialState ??= current;
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if (current != enabled)
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{
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if (!_port.Write(offset, Convert.ToByte(enabled)))
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{
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return false;
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}
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// Allow the system to catch up.
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Thread.Sleep(500);
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}
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return true;
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}
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public void Restore()
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{
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if (_initialState.HasValue)
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{
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Enable(_initialState.Value);
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}
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}
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}
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