├── .travis.yml ├── SampleApp ├── App.config ├── Properties │ └── AssemblyInfo.cs ├── Program.cs └── SampleApp.csproj ├── README.md ├── SharpRTL.sln ├── SharpRTL ├── Properties │ └── AssemblyInfo.cs ├── Types │ ├── DirectSamplingMode.cs │ ├── TunerType.cs │ └── RtlDevice.cs ├── SharpRTL.csproj └── Native.cs ├── .gitattributes ├── .gitignore └── LICENSE /.travis.yml: -------------------------------------------------------------------------------- 1 | language: csharp 2 | solution: SharpRTL.sln 3 | -------------------------------------------------------------------------------- /SampleApp/App.config: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | [![Build Status](https://travis-ci.org/librtlsdr/SharpRTL.svg?branch=master)](https://travis-ci.org/librtlsdr/SharpRTL) 2 | [![GPLv3 License](http://img.shields.io/badge/license-GPLv3-brightgreen.svg)](https://tldrlegal.com/license/gnu-general-public-license-v3-\(gpl-3\)) 3 | 4 | # SharpRTL 5 | 6 | 7 | C# librtlsdr bindings 8 | 9 | 10 | See example of use in SampleApp example. 11 | 12 | ![C# RTLSDR Bindings Sample App](http://i.imgur.com/Q1QirLO.png) 13 | -------------------------------------------------------------------------------- /SharpRTL.sln: -------------------------------------------------------------------------------- 1 | 2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio 14 4 | VisualStudioVersion = 14.0.25123.0 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharpRTL", "SharpRTL\SharpRTL.csproj", "{C65FFE48-1617-4BC2-BB14-CA8DD0C4DCED}" 7 | EndProject 8 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SampleApp", "SampleApp\SampleApp.csproj", "{C26335E2-D6D4-44E6-90F6-02498B240FFF}" 9 | EndProject 10 | Global 11 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 12 | Debug|Any CPU = Debug|Any CPU 13 | Release|Any CPU = Release|Any CPU 14 | EndGlobalSection 15 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 16 | {C65FFE48-1617-4BC2-BB14-CA8DD0C4DCED}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 17 | {C65FFE48-1617-4BC2-BB14-CA8DD0C4DCED}.Debug|Any CPU.Build.0 = Debug|Any CPU 18 | {C65FFE48-1617-4BC2-BB14-CA8DD0C4DCED}.Release|Any CPU.ActiveCfg = Release|Any CPU 19 | {C65FFE48-1617-4BC2-BB14-CA8DD0C4DCED}.Release|Any CPU.Build.0 = Release|Any CPU 20 | {C26335E2-D6D4-44E6-90F6-02498B240FFF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 21 | {C26335E2-D6D4-44E6-90F6-02498B240FFF}.Debug|Any CPU.Build.0 = Debug|Any CPU 22 | {C26335E2-D6D4-44E6-90F6-02498B240FFF}.Release|Any CPU.ActiveCfg = Release|Any CPU 23 | {C26335E2-D6D4-44E6-90F6-02498B240FFF}.Release|Any CPU.Build.0 = Release|Any CPU 24 | EndGlobalSection 25 | GlobalSection(SolutionProperties) = preSolution 26 | HideSolutionNode = FALSE 27 | EndGlobalSection 28 | EndGlobal 29 | -------------------------------------------------------------------------------- /SharpRTL/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | 5 | // General Information about an assembly is controlled through the following 6 | // set of attributes. Change these attribute values to modify the information 7 | // associated with an assembly. 8 | [assembly: AssemblyTitle("SharpRTL")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("")] 12 | [assembly: AssemblyProduct("SharpRTL")] 13 | [assembly: AssemblyCopyright("Copyright © 2016")] 14 | [assembly: AssemblyTrademark("")] 15 | [assembly: AssemblyCulture("")] 16 | 17 | // Setting ComVisible to false makes the types in this assembly not visible 18 | // to COM components. If you need to access a type in this assembly from 19 | // COM, set the ComVisible attribute to true on that type. 20 | [assembly: ComVisible(false)] 21 | 22 | // The following GUID is for the ID of the typelib if this project is exposed to COM 23 | [assembly: Guid("c65ffe48-1617-4bc2-bb14-ca8dd0c4dced")] 24 | 25 | // Version information for an assembly consists of the following four values: 26 | // 27 | // Major Version 28 | // Minor Version 29 | // Build Number 30 | // Revision 31 | // 32 | // You can specify all the values or you can default the Build and Revision Numbers 33 | // by using the '*' as shown below: 34 | // [assembly: AssemblyVersion("1.0.*")] 35 | [assembly: AssemblyVersion("1.0.0.0")] 36 | [assembly: AssemblyFileVersion("1.0.0.0")] 37 | -------------------------------------------------------------------------------- /SampleApp/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | 5 | // General Information about an assembly is controlled through the following 6 | // set of attributes. Change these attribute values to modify the information 7 | // associated with an assembly. 8 | [assembly: AssemblyTitle("SampleApp")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("")] 12 | [assembly: AssemblyProduct("SampleApp")] 13 | [assembly: AssemblyCopyright("Copyright © 2016")] 14 | [assembly: AssemblyTrademark("")] 15 | [assembly: AssemblyCulture("")] 16 | 17 | // Setting ComVisible to false makes the types in this assembly not visible 18 | // to COM components. If you need to access a type in this assembly from 19 | // COM, set the ComVisible attribute to true on that type. 20 | [assembly: ComVisible(false)] 21 | 22 | // The following GUID is for the ID of the typelib if this project is exposed to COM 23 | [assembly: Guid("c26335e2-d6d4-44e6-90f6-02498b240fff")] 24 | 25 | // Version information for an assembly consists of the following four values: 26 | // 27 | // Major Version 28 | // Minor Version 29 | // Build Number 30 | // Revision 31 | // 32 | // You can specify all the values or you can default the Build and Revision Numbers 33 | // by using the '*' as shown below: 34 | // [assembly: AssemblyVersion("1.0.*")] 35 | [assembly: AssemblyVersion("1.0.0.0")] 36 | [assembly: AssemblyFileVersion("1.0.0.0")] 37 | -------------------------------------------------------------------------------- /SharpRTL/Types/DirectSamplingMode.cs: -------------------------------------------------------------------------------- 1 | /////////////////////////////////////////////////////////////////////////////////// 2 | /// C# RTLSDR Bindings /// 3 | /// Copyright(C) 2016 Lucas Teske /// 4 | /// /// 5 | /// This program is free software: you can redistribute it and/or modify /// 6 | /// it under the terms of the GNU General Public License as published by /// 7 | /// the Free Software Foundation, either version 3 of the License, or /// 8 | /// any later version. /// 9 | /// /// 10 | /// This program is distributed in the hope that it will be useful, /// 11 | /// but WITHOUT ANY WARRANTY; without even the implied warranty of /// 12 | /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the /// 13 | /// GNU General Public License for more details. /// 14 | /// /// 15 | /// You should have received a copy of the GNU General Public license /// 16 | /// along with this program.If not, see. /// 17 | /////////////////////////////////////////////////////////////////////////////////// 18 | 19 | namespace SharpRTL.Types { 20 | public enum DirectSamplingMode { 21 | ERROR = -1, 22 | DISABLED = 0, 23 | IADC = 1, 24 | QADC = 2 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /SharpRTL/Types/TunerType.cs: -------------------------------------------------------------------------------- 1 | /////////////////////////////////////////////////////////////////////////////////// 2 | /// C# RTLSDR Bindings /// 3 | /// Copyright(C) 2016 Lucas Teske /// 4 | /// /// 5 | /// This program is free software: you can redistribute it and/or modify /// 6 | /// it under the terms of the GNU General Public License as published by /// 7 | /// the Free Software Foundation, either version 3 of the License, or /// 8 | /// any later version. /// 9 | /// /// 10 | /// This program is distributed in the hope that it will be useful, /// 11 | /// but WITHOUT ANY WARRANTY; without even the implied warranty of /// 12 | /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the /// 13 | /// GNU General Public License for more details. /// 14 | /// /// 15 | /// You should have received a copy of the GNU General Public license /// 16 | /// along with this program.If not, see. /// 17 | /////////////////////////////////////////////////////////////////////////////////// 18 | 19 | namespace SharpRTL.Types { 20 | /// 21 | /// RTLSDR Tuner Type 22 | /// 23 | public enum TunerType { 24 | Unknown = 0, 25 | E4000, 26 | FC0012, 27 | FC0013, 28 | FC2580, 29 | R820T, 30 | R828D 31 | } 32 | } 33 | -------------------------------------------------------------------------------- /SharpRTL/SharpRTL.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Debug 6 | AnyCPU 7 | {C65FFE48-1617-4BC2-BB14-CA8DD0C4DCED} 8 | Library 9 | Properties 10 | SharpRTL 11 | SharpRTL 12 | v4.5 13 | 512 14 | 15 | 16 | true 17 | full 18 | false 19 | bin\Debug\ 20 | DEBUG;TRACE 21 | prompt 22 | 4 23 | 24 | 25 | pdbonly 26 | true 27 | bin\Release\ 28 | TRACE 29 | prompt 30 | 4 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 57 | -------------------------------------------------------------------------------- /.gitattributes: -------------------------------------------------------------------------------- 1 | ############################################################################### 2 | # Set default behavior to automatically normalize line endings. 3 | ############################################################################### 4 | * text=auto 5 | 6 | ############################################################################### 7 | # Set default behavior for command prompt diff. 8 | # 9 | # This is need for earlier builds of msysgit that does not have it on by 10 | # default for csharp files. 11 | # Note: This is only used by command line 12 | ############################################################################### 13 | #*.cs diff=csharp 14 | 15 | ############################################################################### 16 | # Set the merge driver for project and solution files 17 | # 18 | # Merging from the command prompt will add diff markers to the files if there 19 | # are conflicts (Merging from VS is not affected by the settings below, in VS 20 | # the diff markers are never inserted). Diff markers may cause the following 21 | # file extensions to fail to load in VS. An alternative would be to treat 22 | # these files as binary and thus will always conflict and require user 23 | # intervention with every merge. To do so, just uncomment the entries below 24 | ############################################################################### 25 | #*.sln merge=binary 26 | #*.csproj merge=binary 27 | #*.vbproj merge=binary 28 | #*.vcxproj merge=binary 29 | #*.vcproj merge=binary 30 | #*.dbproj merge=binary 31 | #*.fsproj merge=binary 32 | #*.lsproj merge=binary 33 | #*.wixproj merge=binary 34 | #*.modelproj merge=binary 35 | #*.sqlproj merge=binary 36 | #*.wwaproj merge=binary 37 | 38 | ############################################################################### 39 | # behavior for image files 40 | # 41 | # image files are treated as binary by default. 42 | ############################################################################### 43 | #*.jpg binary 44 | #*.png binary 45 | #*.gif binary 46 | 47 | ############################################################################### 48 | # diff behavior for common document formats 49 | # 50 | # Convert binary document formats to text before diffing them. This feature 51 | # is only available from the command line. Turn it on by uncommenting the 52 | # entries below. 53 | ############################################################################### 54 | #*.doc diff=astextplain 55 | #*.DOC diff=astextplain 56 | #*.docx diff=astextplain 57 | #*.DOCX diff=astextplain 58 | #*.dot diff=astextplain 59 | #*.DOT diff=astextplain 60 | #*.pdf diff=astextplain 61 | #*.PDF diff=astextplain 62 | #*.rtf diff=astextplain 63 | #*.RTF diff=astextplain 64 | -------------------------------------------------------------------------------- /SampleApp/Program.cs: -------------------------------------------------------------------------------- 1 | using SharpRTL; 2 | using SharpRTL.Types; 3 | using System; 4 | 5 | namespace SampleApp { 6 | class Program { 7 | #region Fields 8 | private readonly static ConsoleColor defaultFg = Console.ForegroundColor; 9 | private static int samplesReceived = 0; 10 | #endregion 11 | #region Main Code 12 | static void Main(string[] args) { 13 | #region Device List Block 14 | uint deviceCount = Native.rtlsdr_get_device_count(); 15 | if (deviceCount == 0) { 16 | Console.ForegroundColor = ConsoleColor.Red; 17 | Console.WriteLine("No Available Devices"); 18 | Console.ForegroundColor = defaultFg; 19 | waitClickAndExit(); 20 | } 21 | 22 | Console.ForegroundColor = ConsoleColor.DarkCyan; 23 | for (uint i = 0; i < deviceCount; i++) { 24 | string devName = Native.rtlsdr_get_device_name(i); 25 | Console.WriteLine("Device({0}): {1}", i, devName); 26 | } 27 | Console.ForegroundColor = defaultFg; 28 | #endregion 29 | #region Device Select Block 30 | uint idx = 0; 31 | if (deviceCount > 1) { 32 | bool valid = false; 33 | while (!valid) { 34 | Console.WriteLine("Please enter the device number: "); 35 | string devNumStr = Console.ReadLine(); 36 | valid = uint.TryParse(devNumStr, out idx); 37 | } 38 | } 39 | #endregion 40 | #region Device Open Block 41 | Console.ForegroundColor = ConsoleColor.White; 42 | Console.WriteLine("Opening device {0}", idx); 43 | RtlDevice device = new RtlDevice(idx); 44 | Console.WriteLine("Tuner Type: {0}", device.TunerType.ToString()); 45 | Console.WriteLine("Tuned to: {0}", device.Frequency); 46 | Console.WriteLine("Sample Rate: {0}", device.SampleRate); 47 | device.SamplesAvailable += Device_SamplesAvailable; 48 | Console.WriteLine("Starting Worker Thread"); 49 | device.Start(); 50 | Console.ForegroundColor = defaultFg; 51 | #endregion 52 | #region Exit Block 53 | Console.WriteLine("Press any key to exit."); 54 | Console.ReadLine(); 55 | 56 | Console.WriteLine("Stopping device"); 57 | device.Stop(); 58 | 59 | Environment.Exit(0); 60 | #endregion 61 | } 62 | #endregion 63 | #region Samples Callback 64 | private static void Device_SamplesAvailable(ref byte[] data, int length) { 65 | samplesReceived += length; 66 | if (samplesReceived >= 1024 * 1024) { 67 | Console.ForegroundColor = ConsoleColor.Green; 68 | Console.WriteLine("Received {0} samples!", samplesReceived); 69 | Console.ForegroundColor = defaultFg; 70 | samplesReceived = 0; 71 | } 72 | } 73 | #endregion 74 | #region Utils 75 | public static void waitClickAndExit() { 76 | Console.WriteLine("Press any key to exit."); 77 | Console.ReadLine(); 78 | Environment.Exit(0); 79 | } 80 | #endregion 81 | } 82 | } 83 | -------------------------------------------------------------------------------- /SampleApp/SampleApp.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Debug 6 | AnyCPU 7 | {C26335E2-D6D4-44E6-90F6-02498B240FFF} 8 | Exe 9 | Properties 10 | SampleApp 11 | SampleApp 12 | v4.5 13 | 512 14 | 15 | 16 | AnyCPU 17 | true 18 | full 19 | false 20 | bin\Debug\ 21 | DEBUG;TRACE 22 | prompt 23 | 4 24 | 25 | 26 | AnyCPU 27 | pdbonly 28 | true 29 | bin\Release\ 30 | TRACE 31 | prompt 32 | 4 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | {c65ffe48-1617-4bc2-bb14-ca8dd0c4dced} 54 | SharpRTL 55 | 56 | 57 | 58 | 65 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | 4 | # User-specific files 5 | *.suo 6 | *.user 7 | *.userosscache 8 | *.sln.docstates 9 | 10 | # User-specific files (MonoDevelop/Xamarin Studio) 11 | *.userprefs 12 | 13 | # Build results 14 | [Dd]ebug/ 15 | [Dd]ebugPublic/ 16 | [Rr]elease/ 17 | [Rr]eleases/ 18 | [Xx]64/ 19 | [Xx]86/ 20 | [Bb]uild/ 21 | bld/ 22 | [Bb]in/ 23 | [Oo]bj/ 24 | 25 | # Visual Studio 2015 cache/options directory 26 | .vs/ 27 | # Uncomment if you have tasks that create the project's static files in wwwroot 28 | #wwwroot/ 29 | 30 | # MSTest test Results 31 | [Tt]est[Rr]esult*/ 32 | [Bb]uild[Ll]og.* 33 | 34 | # NUNIT 35 | *.VisualState.xml 36 | TestResult.xml 37 | 38 | # Build Results of an ATL Project 39 | [Dd]ebugPS/ 40 | [Rr]eleasePS/ 41 | dlldata.c 42 | 43 | # DNX 44 | project.lock.json 45 | artifacts/ 46 | 47 | *_i.c 48 | *_p.c 49 | *_i.h 50 | *.ilk 51 | *.meta 52 | *.obj 53 | *.pch 54 | *.pdb 55 | *.pgc 56 | *.pgd 57 | *.rsp 58 | *.sbr 59 | *.tlb 60 | *.tli 61 | *.tlh 62 | *.tmp 63 | *.tmp_proj 64 | *.log 65 | *.vspscc 66 | *.vssscc 67 | .builds 68 | *.pidb 69 | *.svclog 70 | *.scc 71 | 72 | # Chutzpah Test files 73 | _Chutzpah* 74 | 75 | # Visual C++ cache files 76 | ipch/ 77 | *.aps 78 | *.ncb 79 | *.opendb 80 | *.opensdf 81 | *.sdf 82 | *.cachefile 83 | *.VC.db 84 | 85 | # Visual Studio profiler 86 | *.psess 87 | *.vsp 88 | *.vspx 89 | *.sap 90 | 91 | # TFS 2012 Local Workspace 92 | $tf/ 93 | 94 | # Guidance Automation Toolkit 95 | *.gpState 96 | 97 | # ReSharper is a .NET coding add-in 98 | _ReSharper*/ 99 | *.[Rr]e[Ss]harper 100 | *.DotSettings.user 101 | 102 | # JustCode is a .NET coding add-in 103 | .JustCode 104 | 105 | # TeamCity is a build add-in 106 | _TeamCity* 107 | 108 | # DotCover is a Code Coverage Tool 109 | *.dotCover 110 | 111 | # NCrunch 112 | _NCrunch_* 113 | .*crunch*.local.xml 114 | nCrunchTemp_* 115 | 116 | # MightyMoose 117 | *.mm.* 118 | AutoTest.Net/ 119 | 120 | # Web workbench (sass) 121 | .sass-cache/ 122 | 123 | # Installshield output folder 124 | [Ee]xpress/ 125 | 126 | # DocProject is a documentation generator add-in 127 | DocProject/buildhelp/ 128 | DocProject/Help/*.HxT 129 | DocProject/Help/*.HxC 130 | DocProject/Help/*.hhc 131 | DocProject/Help/*.hhk 132 | DocProject/Help/*.hhp 133 | DocProject/Help/Html2 134 | DocProject/Help/html 135 | 136 | # Click-Once directory 137 | publish/ 138 | 139 | # Publish Web Output 140 | *.[Pp]ublish.xml 141 | *.azurePubxml 142 | 143 | # TODO: Un-comment the next line if you do not want to checkin 144 | # your web deploy settings because they may include unencrypted 145 | # passwords 146 | #*.pubxml 147 | *.publishproj 148 | 149 | # NuGet Packages 150 | *.nupkg 151 | # The packages folder can be ignored because of Package Restore 152 | **/packages/* 153 | # except build/, which is used as an MSBuild target. 154 | !**/packages/build/ 155 | # Uncomment if necessary however generally it will be regenerated when needed 156 | #!**/packages/repositories.config 157 | # NuGet v3's project.json files produces more ignoreable files 158 | *.nuget.props 159 | *.nuget.targets 160 | 161 | # Microsoft Azure Build Output 162 | csx/ 163 | *.build.csdef 164 | 165 | # Microsoft Azure Emulator 166 | ecf/ 167 | rcf/ 168 | 169 | # Microsoft Azure ApplicationInsights config file 170 | ApplicationInsights.config 171 | 172 | # Windows Store app package directory 173 | AppPackages/ 174 | BundleArtifacts/ 175 | 176 | # Visual Studio cache files 177 | # files ending in .cache can be ignored 178 | *.[Cc]ache 179 | # but keep track of directories ending in .cache 180 | !*.[Cc]ache/ 181 | 182 | # Others 183 | ClientBin/ 184 | [Ss]tyle[Cc]op.* 185 | ~$* 186 | *~ 187 | *.dbmdl 188 | *.dbproj.schemaview 189 | *.pfx 190 | *.publishsettings 191 | node_modules/ 192 | orleans.codegen.cs 193 | 194 | # RIA/Silverlight projects 195 | Generated_Code/ 196 | 197 | # Backup & report files from converting an old project file 198 | # to a newer Visual Studio version. Backup files are not needed, 199 | # because we have git ;-) 200 | _UpgradeReport_Files/ 201 | Backup*/ 202 | UpgradeLog*.XML 203 | UpgradeLog*.htm 204 | 205 | # SQL Server files 206 | *.mdf 207 | *.ldf 208 | 209 | # Business Intelligence projects 210 | *.rdl.data 211 | *.bim.layout 212 | *.bim_*.settings 213 | 214 | # Microsoft Fakes 215 | FakesAssemblies/ 216 | 217 | # GhostDoc plugin setting file 218 | *.GhostDoc.xml 219 | 220 | # Node.js Tools for Visual Studio 221 | .ntvs_analysis.dat 222 | 223 | # Visual Studio 6 build log 224 | *.plg 225 | 226 | # Visual Studio 6 workspace options file 227 | *.opt 228 | 229 | # Visual Studio LightSwitch build output 230 | **/*.HTMLClient/GeneratedArtifacts 231 | **/*.DesktopClient/GeneratedArtifacts 232 | **/*.DesktopClient/ModelManifest.xml 233 | **/*.Server/GeneratedArtifacts 234 | **/*.Server/ModelManifest.xml 235 | _Pvt_Extensions 236 | 237 | # LightSwitch generated files 238 | GeneratedArtifacts/ 239 | ModelManifest.xml 240 | 241 | # Paket dependency manager 242 | .paket/paket.exe 243 | 244 | # FAKE - F# Make 245 | .fake/ -------------------------------------------------------------------------------- /SharpRTL/Types/RtlDevice.cs: -------------------------------------------------------------------------------- 1 | /////////////////////////////////////////////////////////////////////////////////// 2 | /// C# RTLSDR Bindings /// 3 | /// Copyright(C) 2016 Lucas Teske /// 4 | /// /// 5 | /// This program is free software: you can redistribute it and/or modify /// 6 | /// it under the terms of the GNU General Public License as published by /// 7 | /// the Free Software Foundation, either version 3 of the License, or /// 8 | /// any later version. /// 9 | /// /// 10 | /// This program is distributed in the hope that it will be useful, /// 11 | /// but WITHOUT ANY WARRANTY; without even the implied warranty of /// 12 | /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the /// 13 | /// GNU General Public License for more details. /// 14 | /// /// 15 | /// You should have received a copy of the GNU General Public license /// 16 | /// along with this program.If not, see. /// 17 | /////////////////////////////////////////////////////////////////////////////////// 18 | 19 | using System; 20 | using System.Runtime.InteropServices; 21 | using System.Threading; 22 | using SharpRTL; 23 | 24 | namespace SharpRTL.Types { 25 | public class RtlDevice { 26 | #region Constants 27 | private const uint DefaultFrequency = 106300000; 28 | private const int DefaultSamplerate = 2560000; 29 | #endregion 30 | #region Delegates 31 | public delegate void SamplesAvailableEvent(ref byte[] data, int length); 32 | #endregion 33 | #region Static Fields 34 | private static readonly SharpRTL.Native.RtlSdrReadAsyncCallback _rtlCallback = new SharpRTL.Native.RtlSdrReadAsyncCallback(rtlsdrSamplesAvailableCallback); 35 | private static readonly uint _readLength = 16384; 36 | #endregion 37 | #region Fields 38 | private uint _centerFrequency = DefaultFrequency; 39 | private IntPtr _dev; 40 | private int _frequencyCorrection; 41 | private GCHandle _gcHandle; 42 | private uint _sampleRate = DefaultSamplerate; 43 | private DirectSamplingMode _samplingMode; 44 | private bool _useOffsetTuning; 45 | private bool _useRtlAGC; 46 | private bool _useTunerAGC = true; 47 | private Thread _worker; 48 | private int _lnaGain = 0; 49 | private int _mixerGain = 0; 50 | private int _vgaGain = 0; 51 | #endregion 52 | #region Readonly Fields 53 | private readonly uint _index; 54 | private readonly string _name; 55 | private readonly int[] _supportedGains; 56 | private readonly bool _supportsOffsetTuning; 57 | #endregion 58 | #region Events 59 | public event SamplesAvailableEvent SamplesAvailable; 60 | #endregion 61 | #region Constructors / Destructors 62 | public RtlDevice(uint index) { 63 | _index = index; 64 | if (Native.rtlsdr_open(out _dev, _index) != 0) { 65 | throw new Exception("Cannot open RTL device. Is the device locked somewhere?"); 66 | } 67 | 68 | int tunerGains = (_dev == IntPtr.Zero) ? 0 : Native.rtlsdr_get_tuner_gains(_dev, null); 69 | if (tunerGains < 0) { 70 | tunerGains = 0; 71 | } 72 | _useTunerAGC = true; 73 | 74 | _supportsOffsetTuning = Native.rtlsdr_set_offset_tuning(_dev, false) != -2; 75 | _supportedGains = new int[tunerGains]; 76 | if (tunerGains >= 0) { 77 | Native.rtlsdr_get_tuner_gains(_dev, _supportedGains); 78 | } 79 | 80 | _name = Native.rtlsdr_get_device_name(_index); 81 | _gcHandle = GCHandle.Alloc(this); 82 | } 83 | public void Dispose() { 84 | Stop(); 85 | Native.rtlsdr_close(_dev); 86 | if (_gcHandle.IsAllocated) { 87 | _gcHandle.Free(); 88 | } 89 | _dev = IntPtr.Zero; 90 | GC.SuppressFinalize(this); 91 | } 92 | #endregion 93 | #region Methods 94 | /// 95 | /// Callback from the librtlsdr when samples are available. 96 | /// 97 | /// Sample buffer 98 | /// Length of sample buffer 99 | /// Context 100 | private static void rtlsdrSamplesAvailableCallback(IntPtr buff, uint len, IntPtr ctx) { 101 | GCHandle handle = GCHandle.FromIntPtr(ctx); 102 | if (handle.IsAllocated) { 103 | RtlDevice target = (RtlDevice)handle.Target; 104 | 105 | byte[] managedArray = new byte[len]; 106 | Marshal.Copy(buff, managedArray,0 , (int)len); 107 | target.SamplesAvailable(ref managedArray, (int)len); 108 | } 109 | } 110 | /// 111 | /// Starts the working thread 112 | /// 113 | public void Start() { 114 | if (_worker != null) { 115 | throw new Exception("This device worker is already running!"); 116 | } 117 | 118 | if (Native.rtlsdr_set_sample_rate(_dev, _sampleRate) != 0) { 119 | throw new Exception("Cannot set device sample rate!"); 120 | } 121 | 122 | if (Native.rtlsdr_set_center_freq(_dev, _centerFrequency) != 0) { 123 | throw new Exception("Cannot set device center frequency!"); 124 | } 125 | 126 | if (Native.rtlsdr_set_tuner_gain_mode(_dev, _useTunerAGC) != 0) { 127 | throw new Exception("Cannot set Gain Mode"); 128 | } 129 | 130 | if (Native.rtlsdr_set_tuner_gain_ext(_dev, _lnaGain, _mixerGain, _vgaGain) != 0) { 131 | throw new Exception("Cannot set gains"); 132 | } 133 | 134 | if (Native.rtlsdr_reset_buffer(_dev) != 0) { 135 | throw new Exception("Cannot reset rtlsdr buffer"); 136 | } 137 | 138 | _worker = new Thread(new ThreadStart(WorkerMethod)); 139 | _worker.Priority = ThreadPriority.Highest; 140 | _worker.Start(); 141 | } 142 | /// 143 | /// Stops the Working Thread 144 | /// 145 | public void Stop() { 146 | if (_worker != null) { 147 | Native.rtlsdr_cancel_async(_dev); 148 | if (_worker.ThreadState == ThreadState.Running) { 149 | _worker.Join(); 150 | } 151 | _worker = null; 152 | } 153 | } 154 | /// 155 | /// Refresh the Gains 156 | /// 157 | private void RefreshGains() { 158 | if (_dev != IntPtr.Zero) { 159 | Native.rtlsdr_set_tuner_gain_ext(_dev, _lnaGain, _mixerGain, _vgaGain); 160 | } 161 | } 162 | /// 163 | /// Internal Stream Processor: Calls the RTLSDR Library ReadAsync 164 | /// 165 | private void WorkerMethod() { 166 | Native.rtlsdr_read_async(_dev, _rtlCallback, (IntPtr)_gcHandle, 0, _readLength); 167 | } 168 | #endregion 169 | #region Properties 170 | /// 171 | /// The Device Handle for calling Native calls 172 | /// 173 | public IntPtr DeviceHandle { 174 | get { return _dev; } 175 | } 176 | /// 177 | /// Device Tuned Frequency 178 | /// 179 | public uint Frequency { 180 | get { return _centerFrequency; } 181 | set { 182 | _centerFrequency = value; 183 | if (_dev != IntPtr.Zero) { 184 | Native.rtlsdr_set_center_freq(_dev, _centerFrequency); 185 | } 186 | } 187 | } 188 | /// 189 | /// Device Frequency Correction (PPM) 190 | /// 191 | public int FrequencyCorrection { 192 | get { return _frequencyCorrection; } 193 | set { 194 | _frequencyCorrection = value; 195 | if (_dev != IntPtr.Zero) { 196 | Native.rtlsdr_set_freq_correction(_dev, _frequencyCorrection); 197 | } 198 | } 199 | } 200 | /// 201 | /// R820T LNA Gain 202 | /// 203 | public int LNAGain { 204 | get { return _lnaGain; } 205 | set { 206 | _lnaGain = value; 207 | RefreshGains(); 208 | } 209 | } 210 | /// 211 | /// R820T Mixer Gain 212 | /// 213 | public int MixerGain { 214 | get { return _mixerGain; } 215 | set { 216 | _mixerGain = value; 217 | RefreshGains(); 218 | } 219 | } 220 | /// 221 | /// R820T VGA Gain 222 | /// 223 | public int VGAGain { 224 | get { return _vgaGain; } 225 | set { 226 | _vgaGain = value; 227 | RefreshGains(); 228 | } 229 | } 230 | /// 231 | /// Device Index 232 | /// 233 | public uint Index { get {return _index;} } 234 | /// 235 | /// Running State 236 | /// 237 | public bool IsRunning { get {return _worker != null;}} 238 | /// 239 | /// Device Name 240 | /// 241 | public string Name { get { return _name;} } 242 | /// 243 | /// Device Sample Rate 244 | /// 245 | public uint SampleRate { 246 | get { return _sampleRate; } 247 | set { 248 | _sampleRate = value; 249 | if (_dev != IntPtr.Zero) { 250 | Native.rtlsdr_set_sample_rate(_dev, _sampleRate); 251 | } 252 | } 253 | } 254 | /// 255 | /// Device Sampling Mode 256 | /// 257 | public DirectSamplingMode SamplingMode { 258 | get { return _samplingMode; } 259 | set { 260 | _samplingMode = value; 261 | if (_dev != IntPtr.Zero) { 262 | Native.rtlsdr_set_direct_sampling(_dev, _samplingMode); 263 | } 264 | } 265 | } 266 | /// 267 | /// Device supports offset tunning 268 | /// 269 | public bool SupportsOffsetTuning { get { return _supportsOffsetTuning; } } 270 | 271 | /// 272 | /// Device Tuner Type 273 | /// 274 | public TunerType TunerType { 275 | get { 276 | if (!(_dev == IntPtr.Zero)) { 277 | return Native.rtlsdr_get_tuner_type(_dev); 278 | } 279 | return TunerType.Unknown; 280 | } 281 | } 282 | /// 283 | /// Device use offset tunning 284 | /// 285 | public bool UseOffsetTuning { 286 | get { return _useOffsetTuning; } 287 | set { 288 | _useOffsetTuning = value; 289 | if (_dev != IntPtr.Zero) { 290 | Native.rtlsdr_set_offset_tuning(_dev, _useOffsetTuning); 291 | } 292 | } 293 | } 294 | 295 | /// 296 | /// Use Device RTL Automatic Gain Control 297 | /// 298 | public bool UseRtlAGC { 299 | get { return _useRtlAGC; } 300 | set { 301 | _useRtlAGC = value; 302 | if (_dev != IntPtr.Zero) { 303 | Native.rtlsdr_set_agc_mode(_dev, _useRtlAGC); 304 | } 305 | } 306 | } 307 | /// 308 | /// Use Device Tuner Automatic Gain Control 309 | /// 310 | public bool UseTunerAGC { 311 | get { return _useTunerAGC; } 312 | set { 313 | _useTunerAGC = value; 314 | if (_dev != IntPtr.Zero) { 315 | Native.rtlsdr_set_tuner_gain_mode(_dev, _useTunerAGC); 316 | } 317 | } 318 | } 319 | #endregion 320 | } 321 | } 322 | -------------------------------------------------------------------------------- /SharpRTL/Native.cs: -------------------------------------------------------------------------------- 1 | /////////////////////////////////////////////////////////////////////////////////// 2 | /// C# RTLSDR Bindings /// 3 | /// Copyright(C) 2016 Lucas Teske /// 4 | /// /// 5 | /// This program is free software: you can redistribute it and/or modify /// 6 | /// it under the terms of the GNU General Public License as published by /// 7 | /// the Free Software Foundation, either version 3 of the License, or /// 8 | /// any later version. /// 9 | /// /// 10 | /// This program is distributed in the hope that it will be useful, /// 11 | /// but WITHOUT ANY WARRANTY; without even the implied warranty of /// 12 | /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the /// 13 | /// GNU General Public License for more details. /// 14 | /// /// 15 | /// You should have received a copy of the GNU General Public license /// 16 | /// along with this program.If not, see. /// 17 | /////////////////////////////////////////////////////////////////////////////////// 18 | 19 | using SharpRTL.Types; 20 | using System; 21 | using System.Runtime.InteropServices; 22 | using System.Text; 23 | 24 | namespace SharpRTL { 25 | /// 26 | /// librtlsdr Native Methods 27 | /// 28 | public class Native { 29 | #region Constants 30 | private const string LibRtlSdr = "librtlsdr"; 31 | #endregion 32 | #region Callbacks 33 | [UnmanagedFunctionPointer(CallingConvention.Cdecl)] 34 | public delegate void RtlSdrReadAsyncCallback(IntPtr buf, uint len, IntPtr ctx); 35 | #endregion 36 | #region Standard Calls 37 | /// 38 | /// Gets the number of available RTLSDR Devices in the USB Bus 39 | /// 40 | /// count of the rtlsdr devices 41 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 42 | public static extern uint rtlsdr_get_device_count(); 43 | 44 | /// 45 | /// Get the RTLSDR Device Name 46 | /// 47 | /// index of the device 48 | /// 49 | public static string rtlsdr_get_device_name(uint index) {return Marshal.PtrToStringAnsi(_rtlsdr_get_device_name(index));} 50 | 51 | [DllImport(LibRtlSdr, EntryPoint = "rtlsdr_get_device_name", CallingConvention = CallingConvention.Cdecl)] 52 | private static extern IntPtr _rtlsdr_get_device_name(uint index); 53 | 54 | /// 55 | /// Get USB device strings. 56 | /// NOTE: The string arguments must provide space for up to 256 bytes. 57 | /// 58 | /// index the device index 59 | /// manufacter manufacturer name, may be NULL 60 | /// product product name, may be NULL 61 | /// serial serial number, may be NULL 62 | /// 0 on success 63 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 64 | public static extern int rtlsdr_get_device_usb_strings(uint index, StringBuilder manufacturer, StringBuilder product, StringBuilder serial); 65 | 66 | /// 67 | /// Get device index by USB serial string descriptor. 68 | /// 69 | /// Serial serial string of the device 70 | /// Device index of first device where the name matched 71 | /// -1 if name is null 72 | /// -2 if no devices were found at all 73 | /// -3 if devices were found, but none with matching name 74 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 75 | public static extern int rtlsdr_get_index_by_serial([MarshalAs(UnmanagedType.LPStr)] string serial); 76 | 77 | /// 78 | /// Opens the RTLSDR Device 79 | /// 80 | /// A reference to a pointer 81 | /// Device Index 82 | /// 0 on success 83 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 84 | public static extern int rtlsdr_open(out IntPtr dev, uint index); 85 | 86 | /// 87 | /// Closes an RTLSDR Device 88 | /// 89 | /// The device handle given by rtlsdr_open() 90 | /// 0 on success 91 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 92 | public static extern int rtlsdr_close(IntPtr dev); 93 | #endregion 94 | #region Configuration Functions 95 | 96 | /// 97 | /// Set crystal oscillator frequencies used for the RTL2832 and the tuner IC. 98 | /// 99 | /// Usually both ICs use the same clock. Changing the clock may make sense if 100 | /// you are applying an external clock to the tuner or to compensate the 101 | /// frequency (and samplerate) error caused by the original (cheap) crystal. 102 | /// 103 | /// 104 | /// NOTE: Call this function only if you fully understand the implications. 105 | /// 106 | /// 107 | /// The device handle given by rtlsdr_open() 108 | /// Frequency value used to clock the RTL2832 in Hz 109 | /// Frequency value used to clock the tuner IC in Hz 110 | /// 0 on success 111 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 112 | public static extern int rtlsdr_set_xtal_freq(IntPtr dev, uint rtlFreq, uint tunerFreq); 113 | 114 | /// 115 | /// Get crystal oscillator frequencies used for the RTL2832 and the tuner IC. 116 | /// Usually both ICs use the same clock. 117 | /// 118 | /// The device handle given by rtlsdr_open() 119 | /// Frequency value used to clock the RTL2832 in Hz 120 | /// Frequency value used to clock the tuner IC in Hz 121 | /// 0 on success 122 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 123 | public static extern int rtlsdr_get_xtal_freq(IntPtr dev, out uint rtlFreq, out uint tunerFreq); 124 | 125 | /// 126 | /// Get USB device strings. 127 | /// NOTE: The string arguments must provide space for up to 256 bytes. 128 | /// 129 | /// index the device index 130 | /// manufacter manufacturer name, may be NULL 131 | /// product product name, may be NULL 132 | /// serial serial number, may be NULL 133 | /// 0 on success 134 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 135 | public static extern int rtlsdr_get_usb_strings(IntPtr dev, StringBuilder manufact, StringBuilder product, StringBuilder serial); 136 | 137 | /// 138 | /// Write the device EEPROM 139 | /// 140 | /// The device handle given by rtlsdr_open() 141 | /// Buffer of data to be written 142 | /// Address where the data should be read from 143 | /// Length of the data 144 | /// 0 on success 145 | /// -1 if device handle is invalid 146 | /// -2 if EEPROM size is exceeded 147 | /// -3 if no EEPROM was found 148 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 149 | public static extern int rtlsdr_write_eeprom(IntPtr dev, ref byte[] data, byte offset, UInt16 len); 150 | 151 | /// 152 | /// Read the device EEPROM 153 | /// 154 | /// The device handle given by rtlsdr_open() 155 | /// Buffer where the data should be written 156 | /// Offset address where the data should be written 157 | /// Length of the data 158 | /// 0 on success 159 | /// -1 if device handle is invalid 160 | /// -2 if EEPROM size is exceeded 161 | /// -3 if no EEPROM was found 162 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 163 | public static extern int rtlsdr_read_eeprom(IntPtr dev, ref byte[] data, byte offset, UInt16 len); 164 | 165 | /// 166 | /// Set the frequency the device is tuned to. 167 | /// 168 | /// Device handle given by rtlsdr_open() 169 | /// Frequency in Hz 170 | /// 0 on error, frequency in Hz otherwise 171 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 172 | public static extern uint rtlsdr_set_center_freq(IntPtr dev, uint freq); 173 | 174 | /// 175 | /// Get actual frequency the device is tuned to. 176 | /// 177 | /// The device handle given by rtlsdr_open() 178 | /// 0 on error, frequency in Hz otherwise 179 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 180 | public static extern uint rtlsdr_get_center_freq(IntPtr dev); 181 | 182 | /// 183 | /// Set the frequency correction value for the device. 184 | /// 185 | /// The device handle given by rtlsdr_open() 186 | /// Correction value in parts per million (ppm) 187 | /// 0 on success 188 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 189 | public static extern int rtlsdr_set_freq_correction(IntPtr dev, int ppm); 190 | 191 | /// 192 | /// Get actual frequency correction value of the device. 193 | /// 194 | /// The device handle given by rtlsdr_open() 195 | /// Correction value in parts per million (ppm) 196 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 197 | public static extern int rtlsdr_get_freq_correction(IntPtr dev); 198 | 199 | /// 200 | /// Get the tuner type. 201 | /// 202 | /// The device handle given by rtlsdr_open() 203 | /// RTLSDR_TUNER_UNKNOWN on error, tuner type otherwise 204 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 205 | public static extern TunerType rtlsdr_get_tuner_type(IntPtr dev); 206 | 207 | /// 208 | /// Get a list of gains supported by the tuner. 209 | /// 210 | /// NOTE: The gains argument must be preallocated by the caller. If NULL is 211 | /// being given instead, the number of available gain values will be returned. 212 | /// 213 | /// 214 | /// The device handle given by rtlsdr_open() 215 | /// Array of gain values. In tenths of a dB, 115 means 11.5 dB 216 | /// <= 0 on error, number of available (returned) gain values otherwise 217 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 218 | public static extern int rtlsdr_get_tuner_gains(IntPtr dev, [In, Out] int[] gains); 219 | 220 | /// 221 | /// Set the gain for the device. 222 | /// Manual gain mode must be enabled for this to work. 223 | /// Valid gain values may be queried with rtlsdr_get_tuner_gains function. 224 | /// 225 | /// The device handle given by rtlsdr_open() 226 | /// Gain in tenths of a dB, 115 means 11.5 dB 227 | /// 228 | /// 0 on success 229 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 230 | public static extern int rtlsdr_set_tuner_gain(IntPtr dev, int gain); 231 | 232 | /// 233 | /// Get actual gain the device is configured to. 234 | /// 235 | /// The device handle given by rtlsdr_open() 236 | /// 0 on error, gain in tenths of a dB, 115 means 11.5 dB. 237 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 238 | public static extern int rtlsdr_get_tuner_gain(IntPtr dev); 239 | 240 | /// 241 | /// Set the gain mode (automatic/manual) for the device. 242 | /// Manual gain mode must be enabled for the gain setter function to work. 243 | /// 244 | /// The device handle given by rtlsdr_open() 245 | /// True means manual gain mode shall be enabled 246 | /// 0 on success 247 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 248 | public static extern int rtlsdr_set_tuner_gain_mode(IntPtr dev, bool manual); 249 | 250 | /// 251 | /// Set the sample rate for the device, also selects the baseband filters 252 | /// according to the requested sample rate for tuners where this is possible. 253 | /// 254 | /// The device handle given by rtlsdr_open() 255 | /// The sample rate to be set 256 | /// 0 on success 257 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 258 | public static extern int rtlsdr_set_sample_rate(IntPtr dev, uint rate); 259 | 260 | /// 261 | /// Get actual sample rate the device is configured to. 262 | /// 263 | /// The device handle given by rtlsdr_open() 264 | /// 0 on error, sample rate in Hz otherwise 265 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 266 | public static extern uint rtlsdr_get_sample_rate(IntPtr dev); 267 | 268 | /// 269 | /// Enable test mode that returns an 8 bit counter instead of the samples. 270 | /// The counter is generated inside the RTL2832. 271 | /// 272 | /// The device handle given by rtlsdr_open() 273 | /// True means enabled, False disabled 274 | /// 0 on success 275 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 276 | public static extern int rtlsdr_set_testmode(IntPtr dev, bool enabled); 277 | 278 | /// 279 | /// Enable or disable the internal digital AGC of the RTL2832. 280 | /// 281 | /// The device handle given by rtlsdr_open() 282 | /// True means enabled, 0 disabled 283 | /// 0 on success 284 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 285 | public static extern int rtlsdr_set_agc_mode(IntPtr dev, bool enabled); 286 | 287 | /// 288 | /// Enable or disable the direct sampling mode. When enabled, the IF mode 289 | /// of the RTL2832 is activated, and rtlsdr_set_center_freq() will control 290 | /// the IF-frequency of the DDC, which can be used to tune from 0 to 28.8 MHz 291 | /// (xtal frequency of the RTL2832). 292 | /// 293 | /// The device handle given by rtlsdr_open() 294 | /// The direct sampling mode 295 | /// 0 on success 296 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 297 | public static extern int rtlsdr_set_direct_sampling(IntPtr dev, DirectSamplingMode mode); 298 | 299 | /// 300 | /// Get state of the direct sampling mode 301 | /// 302 | /// The device handle given by rtlsdr_open() 303 | /// DirectSamplingMode 304 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 305 | public static extern DirectSamplingMode rtlsdr_get_direct_sampling(IntPtr dev); 306 | 307 | /// 308 | /// Enable or disable offset tuning for zero-IF tuners, which allows to avoid problems caused by the DC offset of the ADCs and 1/f noise. 309 | /// 310 | /// The device handle given by rtlsdr_open() 311 | /// True for enabled, False for Disabled 312 | /// 0 on success 313 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 314 | public static extern int rtlsdr_set_offset_tuning(IntPtr dev, bool enabled); 315 | 316 | /// 317 | /// Get state of the offset tuning mode 318 | /// 319 | /// The device handle given by rtlsdr_open() 320 | /// -1 on error, 0 means disabled, 1 enabled 321 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 322 | public static extern int rtlsdr_get_offset_tuning(IntPtr dev); 323 | 324 | #endregion 325 | #region Streaming Functions 326 | /// 327 | /// Resets the RTLSDR Buffer 328 | /// 329 | /// The device handle given by rtlsdr_open() 330 | /// 0 on success 331 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 332 | public static extern int rtlsdr_reset_buffer(IntPtr dev); 333 | 334 | /// 335 | /// Reads data from rtlsdr synchronously 336 | /// 337 | /// The device handle given by rtlsdr_open() 338 | /// The buffer output 339 | /// The length to read 340 | /// How many bytes was read (output) 341 | /// 0 on success 342 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 343 | public static extern int rtlsdr_read_sync(IntPtr dev, IntPtr buf, int len, out int nRead); 344 | 345 | /// 346 | /// Read samples from the device asynchronously. This function will block until it is being canceled using rtlsdr_cancel_async() 347 | /// 348 | /// The device handle given by rtlsdr_open() 349 | /// Callback function to return received samples 350 | /// User specific context to pass via the callback function 351 | /// Optional buffer count, buf_num * buf_len = overall buffer size. Set to 0 for default buffer count (15) 352 | /// Optional buffer length, must be multiple of 512. should be a multiple of 16384 (URB size), set to 0 for default buffer length(16 * 32 * 512) 353 | /// 0 on success 354 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 355 | public static extern int rtlsdr_read_async(IntPtr dev, RtlSdrReadAsyncCallback cb, IntPtr ctx, uint bufNum, uint bufLen); 356 | 357 | /// 358 | /// Cancel all pending asynchronous operations on the device. 359 | /// 360 | /// The device handle given by rtlsdr_open() 361 | /// 0 on success 362 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 363 | public static extern int rtlsdr_cancel_async(IntPtr dev); 364 | 365 | /// 366 | /// Read samples from the device asynchronously. This function will block until it is being canceled using rtlsdr_cancel_async() 367 | /// NOTE: This function is deprecated and is subject for removal. 368 | /// 369 | /// The device handle given by rtlsdr_open() 370 | /// Callback function to return received samples 371 | /// User specific context to pass via the callback function 372 | /// 0 on success 373 | [Obsolete("rtlsdr_wait_async(IntPtr, RtlSdrReadAsyncCallback, IntPtr) is deprecated, please use rtlsdr_read_async(IntPtr, RtlSdrReadAsyncCallback, IntPtr, uint, uint) instead.")] 374 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 375 | public static extern int rtlsdr_wait_async(IntPtr dev, RtlSdrReadAsyncCallback cb, IntPtr ctx); 376 | #endregion 377 | #region Extended RTLSDR 378 | /// 379 | /// Sets the IF Filter (The bandwidth) of the Tuner for the device. 380 | /// 381 | /// The device handle given by rtlsdr_open() 382 | /// Bandwidth in Hz. Zero means automatic BW selection. 383 | /// The applied value in Hz or 0 if unknown. 384 | /// true to really apply configure the tuner chip; false for just returning applied_bw 385 | /// 0 on success 386 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 387 | public static extern int rtlsdr_set_and_get_tuner_bandwidth(IntPtr dev, uint bandwidth, out uint applied_bandWidth, bool apply_bw); 388 | 389 | /// 390 | /// Sets the IF Filter (The bandwidth) of the Tuner for the device. 391 | /// 392 | /// The device handle given by rtlsdr_open() 393 | /// Bandwidth in Hz. Zero means automatic BW selection 394 | /// 0 on success 395 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 396 | public static extern int rtlsdr_set_tuner_bandwidth(IntPtr dev, uint bandwidth); 397 | 398 | /// 399 | /// Set the intermediate frequency gain for the device. 400 | /// 401 | /// The device handle given by rtlsdr_open() 402 | /// Intermediate frequency gain stage number (1 to 6 for E4000) 403 | /// Gain in tenths of a dB, -30 means -3.0 dB 404 | /// 405 | /// 0 on success 406 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 407 | public static extern int rtlsdr_set_tuner_if_gain(IntPtr dev, int stage, int gain); 408 | 409 | /// 410 | /// Set LNA / Mixer / VGA Device Gain for R820T device is configured to. 411 | /// 412 | /// The device handle given by rtlsdr_open() 413 | /// LNA Gain in tenths of a dB, -30 means -3.0 dB 414 | /// Mixer Gain in tenths of a dB, -30 means -3.0 dB 415 | /// VGA Gain in tenths of a dB, -30 means -3.0 dB 416 | /// 417 | /// 0 on success 418 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 419 | public static extern int rtlsdr_set_tuner_gain_ext(IntPtr dev, int lna_gain, int mixer_gain, int vga_gain); 420 | 421 | /// 422 | /// Read from the remote control (RC) infrared (IR) sensor 423 | /// 424 | /// The device handle given by rtlsdr_open() 425 | /// Buffer to write IR signal (MSB=pulse/space, 7LSB=duration*20usec), recommended 128-bytes 426 | /// Size of buf 427 | /// 428 | [DllImport(LibRtlSdr, CallingConvention = CallingConvention.Cdecl)] 429 | public static extern int rtlsdr_ir_query(IntPtr dev, IntPtr buf, int buf_len); 430 | #endregion 431 | } 432 | } 433 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------