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.Collections.Generic;
moel@1: using System.Runtime.InteropServices;
moel@1: using System.Text;
moel@1:
moel@1: namespace OpenHardwareMonitor.Hardware.Nvidia {
moel@1:
moel@1: public enum NvStatus {
moel@1: OK = 0,
moel@1: ERROR = -1,
moel@1: LIBRARY_NOT_FOUND = -2,
moel@1: NO_IMPLEMENTATION = -3,
moel@1: API_NOT_INTIALIZED = -4,
moel@1: INVALID_ARGUMENT = -5,
moel@1: NVIDIA_DEVICE_NOT_FOUND = -6,
moel@1: END_ENUMERATION = -7,
moel@1: INVALID_HANDLE = -8,
moel@1: INCOMPATIBLE_STRUCT_VERSION = -9,
moel@1: HANDLE_INVALIDATED = -10,
moel@1: OPENGL_CONTEXT_NOT_CURRENT = -11,
moel@1: NO_GL_EXPERT = -12,
moel@1: INSTRUMENTATION_DISABLED = -13,
moel@1: EXPECTED_LOGICAL_GPU_HANDLE = -100,
moel@1: EXPECTED_PHYSICAL_GPU_HANDLE = -101,
moel@1: EXPECTED_DISPLAY_HANDLE = -102,
moel@1: INVALID_COMBINATION = -103,
moel@1: NOT_SUPPORTED = -104,
moel@1: PORTID_NOT_FOUND = -105,
moel@1: EXPECTED_UNATTACHED_DISPLAY_HANDLE = -106,
moel@1: INVALID_PERF_LEVEL = -107,
moel@1: DEVICE_BUSY = -108,
moel@1: NV_PERSIST_FILE_NOT_FOUND = -109,
moel@1: PERSIST_DATA_NOT_FOUND = -110,
moel@1: EXPECTED_TV_DISPLAY = -111,
moel@1: EXPECTED_TV_DISPLAY_ON_DCONNECTOR = -112,
moel@1: NO_ACTIVE_SLI_TOPOLOGY = -113,
moel@1: SLI_RENDERING_MODE_NOTALLOWED = -114,
moel@1: EXPECTED_DIGITAL_FLAT_PANEL = -115,
moel@1: ARGUMENT_EXCEED_MAX_SIZE = -116,
moel@1: DEVICE_SWITCHING_NOT_ALLOWED = -117,
moel@1: TESTING_CLOCKS_NOT_SUPPORTED = -118,
moel@1: UNKNOWN_UNDERSCAN_CONFIG = -119,
moel@1: TIMEOUT_RECONFIGURING_GPU_TOPO = -120,
moel@1: DATA_NOT_FOUND = -121,
moel@1: EXPECTED_ANALOG_DISPLAY = -122,
moel@1: NO_VIDLINK = -123,
moel@1: REQUIRES_REBOOT = -124,
moel@1: INVALID_HYBRID_MODE = -125,
moel@1: MIXED_TARGET_TYPES = -126,
moel@1: SYSWOW64_NOT_SUPPORTED = -127,
moel@1: IMPLICIT_SET_GPU_TOPOLOGY_CHANGE_NOT_ALLOWED = -128,
moel@1: REQUEST_USER_TO_CLOSE_NON_MIGRATABLE_APPS = -129,
moel@1: OUT_OF_MEMORY = -130,
moel@1: WAS_STILL_DRAWING = -131,
moel@1: FILE_NOT_FOUND = -132,
moel@1: TOO_MANY_UNIQUE_STATE_OBJECTS = -133,
moel@1: INVALID_CALL = -134,
moel@1: D3D10_1_LIBRARY_NOT_FOUND = -135,
moel@1: FUNCTION_NOT_FOUND = -136
moel@1: }
moel@1:
moel@1: public enum NvThermalController {
moel@1: NONE = 0,
moel@1: GPU_INTERNAL,
moel@1: ADM1032,
moel@1: MAX6649,
moel@1: MAX1617,
moel@1: LM99,
moel@1: LM89,
moel@1: LM64,
moel@1: ADT7473,
moel@1: SBMAX6649,
moel@1: VBIOSEVT,
moel@1: OS,
moel@1: UNKNOWN = -1,
moel@1: }
moel@1:
moel@1: public enum NvThermalTarget {
moel@1: NONE = 0,
moel@1: GPU = 1,
moel@1: MEMORY = 2,
moel@1: POWER_SUPPLY = 4,
moel@1: BOARD = 8,
moel@1: ALL = 15,
moel@1: UNKNOWN = -1
moel@1: };
moel@1:
moel@61: [StructLayout(LayoutKind.Sequential, Pack = 8)]
moel@1: public struct NvSensor {
moel@1: public NvThermalController Controller;
moel@1: public int DefaultMinTemp;
moel@1: public int DefaultMaxTemp;
moel@1: public int CurrentTemp;
moel@1: public NvThermalTarget Target;
moel@1: }
moel@1:
moel@61: [StructLayout(LayoutKind.Sequential, Pack = 8)]
moel@1: public struct NvGPUThermalSettings {
moel@1: public int Version;
moel@1: public int Count;
moel@1: [MarshalAs(UnmanagedType.ByValArray,
moel@1: SizeConst = NVAPI.MAX_THERMAL_SENSORS_PER_GPU)]
moel@1: public NvSensor[] Sensor;
moel@1: }
moel@1:
moel@61: [StructLayout(LayoutKind.Sequential)]
moel@1: public struct NvDisplayHandle {
moel@61: private IntPtr ptr;
moel@1: }
moel@1:
moel@61: [StructLayout(LayoutKind.Sequential)]
moel@1: public struct NvPhysicalGpuHandle {
moel@61: private IntPtr ptr;
moel@1: }
moel@1:
moel@1: public class NVAPI {
moel@1:
moel@1: private const int SHORT_STRING_MAX = 64;
moel@1:
moel@1: public const int MAX_THERMAL_SENSORS_PER_GPU = 3;
moel@1: public const int MAX_PHYSICAL_GPUS = 64;
moel@1: public static readonly int GPU_THERMAL_SETTINGS_VER =
moel@1: Marshal.SizeOf(typeof(NvGPUThermalSettings)) | 0x10000;
moel@1:
moel@1: private delegate IntPtr nvapi_QueryInterfaceDelegate(uint id);
moel@1: private delegate NvStatus NvAPI_InitializeDelegate();
moel@1: private delegate NvStatus NvAPI_GPU_GetFullNameDelegate(
moel@1: NvPhysicalGpuHandle gpuHandle, StringBuilder name);
moel@1:
moel@1: public delegate NvStatus NvAPI_GPU_GetThermalSettingsDelegate(
moel@1: NvPhysicalGpuHandle gpuHandle, int sensorIndex,
moel@1: ref NvGPUThermalSettings nvGPUThermalSettings);
moel@1: public delegate NvStatus NvAPI_EnumNvidiaDisplayHandleDelegate(int thisEnum,
moel@1: ref NvDisplayHandle displayHandle);
moel@1: public delegate NvStatus NvAPI_GetPhysicalGPUsFromDisplayDelegate(
moel@1: NvDisplayHandle displayHandle, [Out] NvPhysicalGpuHandle[] gpuHandles,
moel@1: out int gpuCount);
moel@1: public delegate NvStatus NvAPI_EnumPhysicalGPUsDelegate(
moel@1: [Out] NvPhysicalGpuHandle[] gpuHandles, out int gpuCount);
moel@38: public delegate NvStatus NvAPI_GPU_GetTachReadingDelegate(
moel@38: NvPhysicalGpuHandle gpuHandle, out int value);
moel@1:
moel@1: private static bool available = false;
moel@1: private static nvapi_QueryInterfaceDelegate nvapi_QueryInterface;
moel@1: private static NvAPI_InitializeDelegate NvAPI_Initialize;
moel@1: private static NvAPI_GPU_GetFullNameDelegate _NvAPI_GPU_GetFullName;
moel@1:
moel@1: public static NvAPI_GPU_GetThermalSettingsDelegate
moel@1: NvAPI_GPU_GetThermalSettings;
moel@1: public static NvAPI_EnumNvidiaDisplayHandleDelegate
moel@1: NvAPI_EnumNvidiaDisplayHandle;
moel@1: public static NvAPI_GetPhysicalGPUsFromDisplayDelegate
moel@1: NvAPI_GetPhysicalGPUsFromDisplay;
moel@1: public static NvAPI_EnumPhysicalGPUsDelegate
moel@1: NvAPI_EnumPhysicalGPUs;
moel@38: public static NvAPI_GPU_GetTachReadingDelegate
moel@38: NvAPI_GPU_GetTachReading;
moel@1:
moel@1: public static NvStatus NvAPI_GPU_GetFullName(NvPhysicalGpuHandle gpuHandle,
moel@1: out string name) {
moel@1: StringBuilder builder = new StringBuilder(SHORT_STRING_MAX);
moel@1: NvStatus status = _NvAPI_GPU_GetFullName(gpuHandle, builder);
moel@1: name = builder.ToString();
moel@1: return status;
moel@1: }
moel@1:
moel@1: private static string GetDllName() {
moel@1: if (IntPtr.Size == 4) {
moel@1: return "nvapi.dll";
moel@1: } else {
moel@1: return "nvapi64.dll";
moel@1: }
moel@1: }
moel@1:
moel@1: private static void GetDelegate<T>(uint id, out T newDelegate)
moel@1: where T : class
moel@1: {
moel@1: IntPtr ptr = nvapi_QueryInterface(id);
moel@38: if (ptr != IntPtr.Zero) {
moel@38: newDelegate =
moel@38: Marshal.GetDelegateForFunctionPointer(ptr, typeof(T)) as T;
moel@38: } else {
moel@38: newDelegate = null;
moel@38: }
moel@1: }
moel@1:
moel@1: static NVAPI() {
moel@1: DllImportAttribute attribute = new DllImportAttribute(GetDllName());
moel@1: attribute.CallingConvention = CallingConvention.Cdecl;
moel@1: attribute.PreserveSig = true;
moel@1: attribute.EntryPoint = "nvapi_QueryInterface";
moel@1: PInvokeDelegateFactory.CreateDelegate(attribute,
moel@1: out nvapi_QueryInterface);
moel@1:
moel@1: try {
moel@1: GetDelegate(0x0150E828, out NvAPI_Initialize);
moel@1: } catch (DllNotFoundException) { return; }
moel@1: catch (ArgumentNullException) { return; }
moel@1:
moel@1: if (NvAPI_Initialize() == NvStatus.OK) {
moel@1: GetDelegate(0xE3640A56, out NvAPI_GPU_GetThermalSettings);
moel@1: GetDelegate(0xCEEE8E9F, out _NvAPI_GPU_GetFullName);
moel@1: GetDelegate(0x9ABDD40D, out NvAPI_EnumNvidiaDisplayHandle);
moel@1: GetDelegate(0x34EF9506, out NvAPI_GetPhysicalGPUsFromDisplay);
moel@1: GetDelegate(0xE5AC921F, out NvAPI_EnumPhysicalGPUs);
moel@38: GetDelegate(0x5F608315, out NvAPI_GPU_GetTachReading);
moel@1: available = true;
moel@1: }
moel@1: }
moel@1:
moel@1: public static bool IsAvailable {
moel@1: get { return available; }
moel@1: }
moel@1:
moel@1: }
moel@1: }