OpenHardwareMonitor: Hardware/Nvidia/NVAPI.cs@76f859f4aea1

     1 /*

     3   This Source Code Form is subject to the terms of the Mozilla Public

     4   License, v. 2.0. If a copy of the MPL was not distributed with this

     5   file, You can obtain one at http://mozilla.org/MPL/2.0/.

     7   Copyright (C) 2009-2012 Michael Möller <mmoeller@openhardwaremonitor.org>

     8 	Copyright (C) 2011 Christian Vallières

    10 */

    12 using System;

    13 using System.Runtime.InteropServices;

    14 using System.Text;

    16 namespace OpenHardwareMonitor.Hardware.Nvidia {

    18   internal enum NvStatus {

    19     OK = 0,

    20     ERROR = -1,

    21     LIBRARY_NOT_FOUND = -2,

    22     NO_IMPLEMENTATION = -3,

    23     API_NOT_INTIALIZED = -4,

    24     INVALID_ARGUMENT = -5,

    25     NVIDIA_DEVICE_NOT_FOUND = -6,

    26     END_ENUMERATION = -7,

    27     INVALID_HANDLE = -8,

    28     INCOMPATIBLE_STRUCT_VERSION = -9,

    29     HANDLE_INVALIDATED = -10,

    30     OPENGL_CONTEXT_NOT_CURRENT = -11,

    31     NO_GL_EXPERT = -12,

    32     INSTRUMENTATION_DISABLED = -13,

    33     EXPECTED_LOGICAL_GPU_HANDLE = -100,

    34     EXPECTED_PHYSICAL_GPU_HANDLE = -101,

    35     EXPECTED_DISPLAY_HANDLE = -102,

    36     INVALID_COMBINATION = -103,

    37     NOT_SUPPORTED = -104,

    38     PORTID_NOT_FOUND = -105,

    39     EXPECTED_UNATTACHED_DISPLAY_HANDLE = -106,

    40     INVALID_PERF_LEVEL = -107,

    41     DEVICE_BUSY = -108,

    42     NV_PERSIST_FILE_NOT_FOUND = -109,

    43     PERSIST_DATA_NOT_FOUND = -110,

    44     EXPECTED_TV_DISPLAY = -111,

    45     EXPECTED_TV_DISPLAY_ON_DCONNECTOR = -112,

    46     NO_ACTIVE_SLI_TOPOLOGY = -113,

    47     SLI_RENDERING_MODE_NOTALLOWED = -114,

    48     EXPECTED_DIGITAL_FLAT_PANEL = -115,

    49     ARGUMENT_EXCEED_MAX_SIZE = -116,

    50     DEVICE_SWITCHING_NOT_ALLOWED = -117,

    51     TESTING_CLOCKS_NOT_SUPPORTED = -118,

    52     UNKNOWN_UNDERSCAN_CONFIG = -119,

    53     TIMEOUT_RECONFIGURING_GPU_TOPO = -120,

    54     DATA_NOT_FOUND = -121,

    55     EXPECTED_ANALOG_DISPLAY = -122,

    56     NO_VIDLINK = -123,

    57     REQUIRES_REBOOT = -124,

    58     INVALID_HYBRID_MODE = -125,

    59     MIXED_TARGET_TYPES = -126,

    60     SYSWOW64_NOT_SUPPORTED = -127,

    61     IMPLICIT_SET_GPU_TOPOLOGY_CHANGE_NOT_ALLOWED = -128,

    62     REQUEST_USER_TO_CLOSE_NON_MIGRATABLE_APPS = -129,

    63     OUT_OF_MEMORY = -130,

    64     WAS_STILL_DRAWING = -131,

    65     FILE_NOT_FOUND = -132,

    66     TOO_MANY_UNIQUE_STATE_OBJECTS = -133,

    67     INVALID_CALL = -134,

    68     D3D10_1_LIBRARY_NOT_FOUND = -135,

    69     FUNCTION_NOT_FOUND = -136

    70   }

    72   internal enum NvThermalController {

    73     NONE = 0,

    74     GPU_INTERNAL,

    75     ADM1032,

    76     MAX6649,

    77     MAX1617,

    78     LM99,

    79     LM89,

    80     LM64,

    81     ADT7473,

    82     SBMAX6649,

    83     VBIOSEVT,

    84     OS,

    85     UNKNOWN = -1,

    86   }

    88   internal enum NvThermalTarget {

    89     NONE = 0,

    90     GPU = 1,

    91     MEMORY = 2,

    92     POWER_SUPPLY = 4,

    93     BOARD = 8,

    94     ALL = 15,

    95     UNKNOWN = -1

    96   };

    98   [StructLayout(LayoutKind.Sequential, Pack = 8)]

    99   internal struct NvSensor {

   100     public NvThermalController Controller;

   101     public uint DefaultMinTemp;

   102     public uint DefaultMaxTemp;

   103     public uint CurrentTemp;

   104     public NvThermalTarget Target;

   105   }

   107   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   108   internal struct NvGPUThermalSettings {

   109     public uint Version;

   110     public uint Count;

   111     [MarshalAs(UnmanagedType.ByValArray,

   112       SizeConst = NVAPI.MAX_THERMAL_SENSORS_PER_GPU)]

   113     public NvSensor[] Sensor;

   114   }

   116   [StructLayout(LayoutKind.Sequential)]

   117   internal struct NvDisplayHandle {

   118     private readonly IntPtr ptr;

   119   }

   121   [StructLayout(LayoutKind.Sequential)]

   122   internal struct NvPhysicalGpuHandle {

   123     private readonly IntPtr ptr;

   124   }

   126   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   127   internal struct NvClocks {

   128     public uint Version;

   129     [MarshalAs(UnmanagedType.ByValArray, SizeConst = NVAPI.MAX_CLOCKS_PER_GPU)]

   130     public uint[] Clock;

   131   }

   133   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   134   internal struct NvPState {

   135     public bool Present;

   136     public int Percentage;

   137   }

   139   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   140   internal struct NvPStates {

   141     public uint Version;

   142     public uint Flags;

   143     [MarshalAs(UnmanagedType.ByValArray, SizeConst = NVAPI.MAX_PSTATES_PER_GPU)]

   144     public NvPState[] PStates;

   145   }

   147   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   148   internal struct NvUsages {

   149     public uint Version;

   150     [MarshalAs(UnmanagedType.ByValArray, SizeConst = NVAPI.MAX_USAGES_PER_GPU)]

   151     public uint[] Usage;

   152   }

   154   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   155   internal struct NvCooler {

   156     public int Type;

   157     public int Controller;

   158     public int DefaultMin;

   159     public int DefaultMax;

   160     public int CurrentMin;

   161     public int CurrentMax;

   162     public int CurrentLevel;

   163     public int DefaultPolicy;

   164     public int CurrentPolicy;

   165     public int Target;

   166     public int ControlType;

   167     public int Active;

   168   }

   170   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   171   internal struct NvGPUCoolerSettings {

   172     public uint Version;

   173     public uint Count;

   174     [MarshalAs(UnmanagedType.ByValArray, SizeConst = NVAPI.MAX_COOLER_PER_GPU)]

   175     public NvCooler[] Cooler;

   176   }

   178   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   179   internal struct NvLevel {

   180     public int Level;

   181     public int Policy;

   182   }

   184   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   185   internal struct NvGPUCoolerLevels {

   186     public uint Version;

   187     [MarshalAs(UnmanagedType.ByValArray, SizeConst = NVAPI.MAX_COOLER_PER_GPU)]

   188     public NvLevel[] Levels;

   189   }

   191   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   192   internal struct NvMemoryInfo {

   193     public uint Version;

   194     [MarshalAs(UnmanagedType.ByValArray, SizeConst =

   195       NVAPI.MAX_MEMORY_VALUES_PER_GPU)]

   196     public uint[] Values;

   197   }

   199   [StructLayout(LayoutKind.Sequential, Pack = 8)]

   200   internal struct NvDisplayDriverVersion {

   201     public uint Version;

   202     public uint DriverVersion;

   203     public uint BldChangeListNum;

   204     [MarshalAs(UnmanagedType.ByValTStr, SizeConst = NVAPI.SHORT_STRING_MAX)]

   205     public string BuildBranch;

   206     [MarshalAs(UnmanagedType.ByValTStr, SizeConst = NVAPI.SHORT_STRING_MAX)]

   207     public string Adapter;

   208   }

   210   internal class NVAPI {

   212     public const int MAX_PHYSICAL_GPUS = 64;

   213     public const int SHORT_STRING_MAX = 64;

   215     public const int MAX_THERMAL_SENSORS_PER_GPU = 3;

   216     public const int MAX_CLOCKS_PER_GPU = 0x120;

   217     public const int MAX_PSTATES_PER_GPU = 8;

   218     public const int MAX_USAGES_PER_GPU = 33;

   219     public const int MAX_COOLER_PER_GPU = 20;

   220     public const int MAX_MEMORY_VALUES_PER_GPU = 5;

   222     public static readonly uint GPU_THERMAL_SETTINGS_VER = (uint)

   223       Marshal.SizeOf(typeof(NvGPUThermalSettings)) | 0x10000;

   224     public static readonly uint GPU_CLOCKS_VER = (uint)

   225       Marshal.SizeOf(typeof(NvClocks)) | 0x20000;

   226     public static readonly uint GPU_PSTATES_VER = (uint)

   227       Marshal.SizeOf(typeof(NvPStates)) | 0x10000;

   228     public static readonly uint GPU_USAGES_VER = (uint)

   229       Marshal.SizeOf(typeof(NvUsages)) | 0x10000;

   230     public static readonly uint GPU_COOLER_SETTINGS_VER = (uint)

   231       Marshal.SizeOf(typeof(NvGPUCoolerSettings)) | 0x20000;

   232     public static readonly uint GPU_MEMORY_INFO_VER = (uint)

   233       Marshal.SizeOf(typeof(NvMemoryInfo)) | 0x20000;

   234     public static readonly uint DISPLAY_DRIVER_VERSION_VER = (uint)

   235       Marshal.SizeOf(typeof(NvDisplayDriverVersion)) | 0x10000;

   236     public static readonly uint GPU_COOLER_LEVELS_VER = (uint)

   237       Marshal.SizeOf(typeof(NvGPUCoolerLevels)) | 0x10000;

   239     private delegate IntPtr nvapi_QueryInterfaceDelegate(uint id);

   240     private delegate NvStatus NvAPI_InitializeDelegate();

   241     private delegate NvStatus NvAPI_GPU_GetFullNameDelegate(

   242       NvPhysicalGpuHandle gpuHandle, StringBuilder name);

   244     public delegate NvStatus NvAPI_GPU_GetThermalSettingsDelegate(

   245       NvPhysicalGpuHandle gpuHandle, int sensorIndex,

   246       ref NvGPUThermalSettings nvGPUThermalSettings);

   247     public delegate NvStatus NvAPI_EnumNvidiaDisplayHandleDelegate(int thisEnum,

   248       ref NvDisplayHandle displayHandle);

   249     public delegate NvStatus NvAPI_GetPhysicalGPUsFromDisplayDelegate(

   250       NvDisplayHandle displayHandle, [Out] NvPhysicalGpuHandle[] gpuHandles,

   251       out uint gpuCount);

   252     public delegate NvStatus NvAPI_EnumPhysicalGPUsDelegate(

   253       [Out] NvPhysicalGpuHandle[] gpuHandles, out int gpuCount);

   254     public delegate NvStatus NvAPI_GPU_GetTachReadingDelegate(

   255       NvPhysicalGpuHandle gpuHandle, out int value);

   256     public delegate NvStatus NvAPI_GPU_GetAllClocksDelegate(

   257       NvPhysicalGpuHandle gpuHandle, ref NvClocks nvClocks);

   258     public delegate NvStatus NvAPI_GPU_GetPStatesDelegate(

   259       NvPhysicalGpuHandle gpuHandle, ref NvPStates nvPStates);

   260     public delegate NvStatus NvAPI_GPU_GetUsagesDelegate(

   261       NvPhysicalGpuHandle gpuHandle, ref NvUsages nvUsages);

   262     public delegate NvStatus NvAPI_GPU_GetCoolerSettingsDelegate(

   263       NvPhysicalGpuHandle gpuHandle, int coolerIndex,

   264       ref NvGPUCoolerSettings nvGPUCoolerSettings);

   265     public delegate NvStatus NvAPI_GPU_SetCoolerLevelsDelegate(

   266       NvPhysicalGpuHandle gpuHandle, int coolerIndex,

   267       ref NvGPUCoolerLevels NvGPUCoolerLevels);

   268     public delegate NvStatus NvAPI_GPU_GetMemoryInfoDelegate(

   269       NvDisplayHandle displayHandle, ref NvMemoryInfo nvMemoryInfo);

   270     public delegate NvStatus NvAPI_GetDisplayDriverVersionDelegate(

   271       NvDisplayHandle displayHandle, [In, Out] ref NvDisplayDriverVersion

   272       nvDisplayDriverVersion);

   273     public delegate NvStatus NvAPI_GetInterfaceVersionStringDelegate(

   274       StringBuilder version);

   275     public delegate NvStatus NvAPI_GPU_GetPCIIdentifiersDelegate(

   276       NvPhysicalGpuHandle gpuHandle, out uint deviceId, out uint subSystemId,

   277       out uint revisionId, out uint extDeviceId);

   279     private static readonly bool available;

   280     private static readonly nvapi_QueryInterfaceDelegate nvapi_QueryInterface;

   281     private static readonly NvAPI_InitializeDelegate NvAPI_Initialize;

   282     private static readonly NvAPI_GPU_GetFullNameDelegate

   283       _NvAPI_GPU_GetFullName;

   284     private static readonly NvAPI_GetInterfaceVersionStringDelegate

   285       _NvAPI_GetInterfaceVersionString;

   287     public static readonly NvAPI_GPU_GetThermalSettingsDelegate

   288       NvAPI_GPU_GetThermalSettings;

   289     public static readonly NvAPI_EnumNvidiaDisplayHandleDelegate

   290       NvAPI_EnumNvidiaDisplayHandle;

   291     public static readonly NvAPI_GetPhysicalGPUsFromDisplayDelegate

   292       NvAPI_GetPhysicalGPUsFromDisplay;

   293     public static readonly NvAPI_EnumPhysicalGPUsDelegate

   294       NvAPI_EnumPhysicalGPUs;

   295     public static readonly NvAPI_GPU_GetTachReadingDelegate

   296       NvAPI_GPU_GetTachReading;

   297     public static readonly NvAPI_GPU_GetAllClocksDelegate

   298       NvAPI_GPU_GetAllClocks;

   299     public static readonly NvAPI_GPU_GetPStatesDelegate

   300       NvAPI_GPU_GetPStates;

   301     public static readonly NvAPI_GPU_GetUsagesDelegate

   302       NvAPI_GPU_GetUsages;

   303     public static readonly NvAPI_GPU_GetCoolerSettingsDelegate

   304       NvAPI_GPU_GetCoolerSettings;

   305     public static readonly NvAPI_GPU_SetCoolerLevelsDelegate

   306       NvAPI_GPU_SetCoolerLevels;

   307     public static readonly NvAPI_GPU_GetMemoryInfoDelegate

   308       NvAPI_GPU_GetMemoryInfo;

   309     public static readonly NvAPI_GetDisplayDriverVersionDelegate

   310       NvAPI_GetDisplayDriverVersion;

   311     public static readonly NvAPI_GPU_GetPCIIdentifiersDelegate

   312       NvAPI_GPU_GetPCIIdentifiers;

   314     private NVAPI() { }

   316     public static NvStatus NvAPI_GPU_GetFullName(NvPhysicalGpuHandle gpuHandle,

   317       out string name) {

   318       StringBuilder builder = new StringBuilder(SHORT_STRING_MAX);

   319       NvStatus status;

   320       if (_NvAPI_GPU_GetFullName != null)

   321         status = _NvAPI_GPU_GetFullName(gpuHandle, builder);

   322       else

   323         status = NvStatus.FUNCTION_NOT_FOUND;

   324       name = builder.ToString();

   325       return status;

   326     }

   328     public static NvStatus NvAPI_GetInterfaceVersionString(out string version) {

   329       StringBuilder builder = new StringBuilder(SHORT_STRING_MAX);

   330       NvStatus status;

   331       if (_NvAPI_GetInterfaceVersionString != null)

   332         status = _NvAPI_GetInterfaceVersionString(builder);

   333       else

   334         status = NvStatus.FUNCTION_NOT_FOUND;

   335       version = builder.ToString();

   336       return status;

   337     }

   339     private static string GetDllName() {

   340       if (IntPtr.Size == 4) {

   341         return "nvapi.dll";

   342       } else {

   343         return "nvapi64.dll";

   344       }

   345     }

   347     private static void GetDelegate<T>(uint id, out T newDelegate)

   348       where T : class {

   349       IntPtr ptr = nvapi_QueryInterface(id);

   350       if (ptr != IntPtr.Zero) {

   351         newDelegate =

   352           Marshal.GetDelegateForFunctionPointer(ptr, typeof(T)) as T;

   353       } else {

   354         newDelegate = null;

   355       }

   356     }

   358     static NVAPI() {

   359       DllImportAttribute attribute = new DllImportAttribute(GetDllName());

   360       attribute.CallingConvention = CallingConvention.Cdecl;

   361       attribute.PreserveSig = true;

   362       attribute.EntryPoint = "nvapi_QueryInterface";

   363       PInvokeDelegateFactory.CreateDelegate(attribute,

   364         out nvapi_QueryInterface);

   366       try {

   367         GetDelegate(0x0150E828, out NvAPI_Initialize);

   368       } catch (DllNotFoundException) { return; }

   369         catch (EntryPointNotFoundException) { return; }

   370         catch (ArgumentNullException) { return; }

   372       if (NvAPI_Initialize() == NvStatus.OK) {

   373         GetDelegate(0xE3640A56, out NvAPI_GPU_GetThermalSettings);

   374         GetDelegate(0xCEEE8E9F, out _NvAPI_GPU_GetFullName);

   375         GetDelegate(0x9ABDD40D, out NvAPI_EnumNvidiaDisplayHandle);

   376         GetDelegate(0x34EF9506, out NvAPI_GetPhysicalGPUsFromDisplay);

   377         GetDelegate(0xE5AC921F, out NvAPI_EnumPhysicalGPUs);

   378         GetDelegate(0x5F608315, out NvAPI_GPU_GetTachReading);

   379         GetDelegate(0x1BD69F49, out NvAPI_GPU_GetAllClocks);

   380         GetDelegate(0x60DED2ED, out NvAPI_GPU_GetPStates);

   381         GetDelegate(0x189A1FDF, out NvAPI_GPU_GetUsages);

   382         GetDelegate(0xDA141340, out NvAPI_GPU_GetCoolerSettings);

   383         GetDelegate(0x891FA0AE, out NvAPI_GPU_SetCoolerLevels);

   384         GetDelegate(0x774AA982, out NvAPI_GPU_GetMemoryInfo);

   385         GetDelegate(0xF951A4D1, out NvAPI_GetDisplayDriverVersion);

   386         GetDelegate(0x01053FA5, out _NvAPI_GetInterfaceVersionString);

   387         GetDelegate(0x2DDFB66E, out NvAPI_GPU_GetPCIIdentifiers);

   389         available = true;

   390       }

   391     }

   393     public static bool IsAvailable {

   394       get { return available; }

   395     }

   397   }

   398 }

author	moel.mich
	Sat, 27 Oct 2012 11:40:28 +0000
changeset 384	76f859f4aea1
parent 334	013e148e8f12
permissions	-rw-r--r--