moel@1: /*
moel@1:
moel@1: Version: MPL 1.1/GPL 2.0/LGPL 2.1
moel@1:
moel@1: The contents of this file are subject to the Mozilla Public License Version
moel@1: 1.1 (the "License"); you may not use this file except in compliance with
moel@1: the License. You may obtain a copy of the License at
moel@1:
moel@1: http://www.mozilla.org/MPL/
moel@1:
moel@1: Software distributed under the License is distributed on an "AS IS" basis,
moel@1: WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
moel@1: for the specific language governing rights and limitations under the License.
moel@1:
moel@1: The Original Code is the Open Hardware Monitor code.
moel@1:
moel@1: The Initial Developer of the Original Code is
moel@1: Michael Möller <m.moeller@gmx.ch>.
moel@1: Portions created by the Initial Developer are Copyright (C) 2009-2010
moel@1: the Initial Developer. All Rights Reserved.
moel@1:
moel@1: Contributor(s):
moel@1:
moel@1: Alternatively, the contents of this file may be used under the terms of
moel@1: either the GNU General Public License Version 2 or later (the "GPL"), or
moel@1: the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
moel@1: in which case the provisions of the GPL or the LGPL are applicable instead
moel@1: of those above. If you wish to allow use of your version of this file only
moel@1: under the terms of either the GPL or the LGPL, and not to allow others to
moel@1: use your version of this file under the terms of the MPL, indicate your
moel@1: decision by deleting the provisions above and replace them with the notice
moel@1: and other provisions required by the GPL or the LGPL. If you do not delete
moel@1: the provisions above, a recipient may use your version of this file under
moel@1: the terms of any one of the MPL, the GPL or the LGPL.
moel@1:
moel@1: */
moel@1:
moel@1: using System;
moel@1: using System.Runtime.InteropServices;
moel@162: using System.Threading;
moel@1:
moel@1: namespace OpenHardwareMonitor.Hardware {
moel@1:
moel@165: internal class WinRing0 {
moel@167:
moel@167: private WinRing0() { }
moel@1:
moel@1: public enum OlsDllStatus{
moel@1: OLS_DLL_NO_ERROR = 0,
moel@1: OLS_DLL_UNSUPPORTED_PLATFORM = 1,
moel@1: OLS_DLL_DRIVER_NOT_LOADED = 2,
moel@1: OLS_DLL_DRIVER_NOT_FOUND = 3,
moel@1: OLS_DLL_DRIVER_UNLOADED = 4,
moel@1: OLS_DLL_DRIVER_NOT_LOADED_ON_NETWORK = 5,
moel@1: OLS_DLL_UNKNOWN_ERROR = 9
moel@1: }
moel@1:
moel@1: private static bool available = false;
moel@167: private static Mutex isaBusMutex;
moel@1:
moel@1: private static string GetDllName() {
moel@1: int p = (int)System.Environment.OSVersion.Platform;
moel@1: if ((p == 4) || (p == 128)) {
moel@1: if (IntPtr.Size == 4) {
moel@1: return "libring0.so";
moel@1: } else {
moel@1: return "libring0x64.so";
moel@1: }
moel@1: } else {
moel@1: if (IntPtr.Size == 4) {
moel@1: return "WinRing0.dll";
moel@1: } else {
moel@1: return "WinRing0x64.dll";
moel@1: }
moel@1: }
moel@1: }
moel@1:
moel@1: private delegate bool InitializeOlsDelegate();
moel@1: private delegate void DeinitializeOlsDelegate();
moel@1:
moel@1: public delegate bool IsCpuidDelegate();
moel@90: public delegate bool CpuidTxDelegate(uint index, uint ecxValue,
moel@90: out uint eax, out uint ebx, out uint ecx, out uint edx,
moel@90: UIntPtr threadAffinityMask);
moel@46: public delegate bool RdmsrDelegate(uint index, out uint eax, out uint edx);
moel@46: public delegate bool RdmsrTxDelegate(uint index, out uint eax, out uint edx,
moel@46: UIntPtr threadAffinityMask);
moel@1: public delegate byte ReadIoPortByteDelegate(ushort port);
moel@1: public delegate void WriteIoPortByteDelegate(ushort port, byte value);
moel@1: public delegate uint FindPciDeviceByIdDelegate(ushort vendorId,
moel@1: ushort deviceId, byte index);
moel@1: public delegate bool ReadPciConfigDwordExDelegate(uint pciAddress,
moel@1: uint regAddress, out uint value);
moel@14: public delegate bool WritePciConfigDwordExDelegate(uint pciAddress,
moel@14: uint regAddress, uint value);
moel@46: public delegate bool RdtscTxDelegate(out uint eax, out uint edx,
moel@46: UIntPtr threadAffinityMask);
moel@79: public delegate bool RdtscDelegate(out uint eax, out uint edx);
moel@1:
moel@167: private static InitializeOlsDelegate InitializeOls =
moel@167: CreateDelegate<InitializeOlsDelegate>("InitializeOls");
moel@167: private static DeinitializeOlsDelegate DeinitializeOls =
moel@167: CreateDelegate<DeinitializeOlsDelegate>("DeinitializeOls");
moel@1:
moel@167: public static readonly IsCpuidDelegate IsCpuid =
moel@167: CreateDelegate<IsCpuidDelegate>("IsCpuid");
moel@167: public static readonly CpuidTxDelegate CpuidTx =
moel@167: CreateDelegate<CpuidTxDelegate>("CpuidTx");
moel@167: public static readonly RdmsrDelegate Rdmsr =
moel@167: CreateDelegate<RdmsrDelegate>("Rdmsr");
moel@167: public static readonly RdmsrTxDelegate RdmsrTx =
moel@167: CreateDelegate<RdmsrTxDelegate>("RdmsrTx");
moel@167: public static readonly ReadIoPortByteDelegate ReadIoPortByte =
moel@167: CreateDelegate<ReadIoPortByteDelegate>("ReadIoPortByte");
moel@167: public static readonly WriteIoPortByteDelegate WriteIoPortByte =
moel@167: CreateDelegate<WriteIoPortByteDelegate>("WriteIoPortByte");
moel@167: public static readonly FindPciDeviceByIdDelegate FindPciDeviceById =
moel@167: CreateDelegate<FindPciDeviceByIdDelegate>("FindPciDeviceById");
moel@167: public static readonly ReadPciConfigDwordExDelegate ReadPciConfigDwordEx =
moel@167: CreateDelegate<ReadPciConfigDwordExDelegate>("ReadPciConfigDwordEx");
moel@167: public static readonly WritePciConfigDwordExDelegate WritePciConfigDwordEx =
moel@167: CreateDelegate<WritePciConfigDwordExDelegate>("WritePciConfigDwordEx");
moel@167: public static readonly RdtscTxDelegate RdtscTx =
moel@167: CreateDelegate<RdtscTxDelegate>("RdtscTx");
moel@167: public static readonly RdtscDelegate Rdtsc =
moel@167: CreateDelegate<RdtscDelegate>("Rdtsc");
moel@167:
moel@167: private static T CreateDelegate<T>(string entryPoint) where T : class {
moel@1: DllImportAttribute attribute = new DllImportAttribute(GetDllName());
moel@1: attribute.CallingConvention = CallingConvention.Winapi;
moel@1: attribute.PreserveSig = true;
moel@1: attribute.EntryPoint = entryPoint;
moel@1: attribute.CharSet = CharSet.Auto;
moel@167: T result;
moel@167: PInvokeDelegateFactory.CreateDelegate(attribute, out result);
moel@167: return result;
moel@1: }
moel@1:
moel@167: public static void Open() {
moel@1: try {
moel@1: if (InitializeOls != null && InitializeOls())
moel@1: available = true;
moel@167: } catch (DllNotFoundException) { }
moel@167:
moel@162: isaBusMutex = new Mutex(false, "Access_ISABUS.HTP.Method");
moel@1: }
moel@167:
moel@1: public static bool IsAvailable {
moel@1: get { return available; }
moel@1: }
moel@1:
moel@167: public static void Close() {
moel@167: if (available)
moel@167: DeinitializeOls();
moel@167: isaBusMutex.Close();
moel@167: }
moel@167:
moel@163: public static bool WaitIsaBusMutex(int millisecondsTimeout) {
moel@162: try {
moel@167: return isaBusMutex.WaitOne(millisecondsTimeout, false);
moel@167: } catch (AbandonedMutexException) { return false; }
moel@167: catch (InvalidOperationException) { return false; }
moel@162: }
moel@162:
moel@162: public static void ReleaseIsaBusMutex() {
moel@162: isaBusMutex.ReleaseMutex();
moel@167: }
moel@1: }
moel@1: }