Stephen HorvathandPhyxionNL
b02fc4c4cf
* Begin CrOS implementation for Framework Laptops * CrOS: Talk directly to the EC, instead of through ACPI * Add a few Framework models * Remove early Framework models These have a different EC, and don't currently work * Migrate CrOS ECs to PawnIO * Implement EcCommand and read sensor names * Add more Framework models * Add some error handling * Misc --------- Co-authored-by: PhyxionNL <7643972+PhyxionNL@users.noreply.github.com>
75 lines
2.0 KiB
C#
75 lines
2.0 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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// All Rights Reserved.
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using System.Diagnostics;
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using System.Text;
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using LibreHardwareMonitor.PawnIo;
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namespace LibreHardwareMonitor.Hardware.Motherboard.Lpc.EC;
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public class ChromeOSEmbeddedControllerIO : IEmbeddedControllerIO
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{
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private const short EC_CMD_TEMP_SENSOR_GET_INFO = 0x0070;
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private readonly LpcCrOSEc _pawnModule;
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private bool _disposed;
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public ChromeOSEmbeddedControllerIO()
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{
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_pawnModule = new LpcCrOSEc();
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if (!Mutexes.WaitEc(10))
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{
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throw new BusMutexLockingFailedException();
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}
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}
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public void Read(ushort[] registers, byte[] data)
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{
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Trace.Assert(registers.Length <= data.Length,
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"data buffer length has to be greater or equal to the registers array length");
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for (int i = 0; i < registers.Length; i++)
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{
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data[i] = ReadMemmap((byte)registers[i], 1)[0];
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}
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}
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public byte[] ReadMemmap(byte offset, byte bytes)
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{
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return _pawnModule.ReadMemmap(offset, bytes);
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}
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public string TempSensorGetName(byte index)
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{
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try
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{
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byte[] resp = _pawnModule.EcCommand(0, EC_CMD_TEMP_SENSOR_GET_INFO, 1, 33, [index]);
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//byte sensorType = resp[33];
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return Encoding.ASCII.GetString(resp, 0, 32).TrimEnd('\0');
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}
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catch (System.Exception)
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{
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return "Temp " + index;
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}
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}
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public void Dispose()
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{
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if (!_disposed)
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{
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_disposed = true;
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Mutexes.ReleaseEc();
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}
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}
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public class BusMutexLockingFailedException : EmbeddedController.IOException
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{
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public BusMutexLockingFailedException()
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: base("could not lock ISA bus mutex")
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{ }
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}
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}
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