Files
ReLibreHardwareMonitor/LibreHardwareMonitorLib/PawnIo/RyzenSmu.cs
T
2025-09-27 12:54:24 +02:00

86 lines
2.0 KiB
C#

using System;
using LibreHardwareMonitor.Hardware;
namespace LibreHardwareMonitor.PawnIo;
public class RyzenSmu
{
private readonly PawnIo _pawnIO = PawnIo.LoadModuleFromResource(typeof(IntelMsr).Assembly, $"{nameof(LibreHardwareMonitor)}.Resources.PawnIo.RyzenSMU.bin");
public uint GetSmuVersion()
{
if (!Mutexes.WaitPciBus(5000))
throw new TimeoutException("Timeout waiting for PCI bus mutex");
uint version;
try
{
long[] outArray = _pawnIO.Execute("ioctl_get_smu_version", [], 1);
version = (uint)outArray[0];
}
finally
{
Mutexes.ReleasePciBus();
}
return version;
}
public long GetCodeName()
{
long[] outArray = _pawnIO.Execute("ioctl_get_code_name", [], 1);
return outArray[0];
}
public long[] ReadPmTable(int size)
{
if (!Mutexes.WaitPciBus(5000))
throw new TimeoutException("Timeout waiting for PCI bus mutex");
try
{
long[] outArray = _pawnIO.Execute("ioctl_read_pm_table", [], size);
return outArray;
}
finally
{
Mutexes.ReleasePciBus();
}
}
public void UpdatePmTable()
{
if (!Mutexes.WaitPciBus(5000))
throw new TimeoutException("Timeout waiting for PCI bus mutex");
try
{
_pawnIO.Execute("ioctl_update_pm_table", [], 0);
}
finally
{
Mutexes.ReleasePciBus();
}
}
public void ResolvePmTable(out uint version, out uint tableBase)
{
if (!Mutexes.WaitPciBus(5000))
throw new TimeoutException("Timeout waiting for PCI bus mutex");
try
{
long[] outArray = _pawnIO.Execute("ioctl_resolve_pm_table", [], 2);
version = (uint)outArray[0];
tableBase = (uint)outArray[1];
}
finally
{
Mutexes.ReleasePciBus();
}
}
public void Close() => _pawnIO.Close();
}