mirror of
https://github.com/AlexandreRouma/SDRPlusPlus.git
synced 2025-11-04 10:49:11 +01:00
Added RTL-SDR source module
This commit is contained in:
Ryzerth
@@ -14,6 +14,7 @@ option(OPT_BUILD_AIRSPY_SOURCE "Build Airspy Source Module (Depedencies: libairs
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option(OPT_BUILD_SDRPLAY_SOURCE "Build SDRplay Source Module (Depedencies: libsdrplay)" OFF)
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option(OPT_BUILD_PLUTOSDR_SOURCE "Build PlutoSDR Source Module (Depedencies: libiio, libad9361)" ON)
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option(OPT_BUILD_HACKRF_SOURCE "Build HackRF Source Module (Depedencies: libhackrf)" OFF)
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option(OPT_BUILD_RTL_SDR_SOURCE "Build HackRF Source Module (Depedencies: libhackrf)" ON)
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option(OPT_BUILD_AUDIO_SINK "Build Audio Sink Module (Depedencies: portaudio)" ON)
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# Core of SDR++
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@@ -57,6 +58,10 @@ if (OPT_BUILD_HACKRF_SOURCE)
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add_subdirectory("hackrf_source")
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endif (OPT_BUILD_HACKRF_SOURCE)
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if (OPT_BUILD_RTL_SDR_SOURCE)
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add_subdirectory("rtl_sdr_source")
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endif (OPT_BUILD_RTL_SDR_SOURCE)
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if (OPT_BUILD_AUDIO_SINK)
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add_subdirectory("audio_sink")
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endif (OPT_BUILD_AUDIO_SINK)
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34
rtl_sdr_source/CMakeLists.txt
Normal file
34
rtl_sdr_source/CMakeLists.txt
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@@ -0,0 +1,34 @@
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cmake_minimum_required(VERSION 3.13)
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project(rtl_sdr_source)
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if (MSVC)
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set(CMAKE_CXX_FLAGS "-O2 /std:c++17 /EHsc")
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else()
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set(CMAKE_CXX_FLAGS "-O3 -std=c++17 -fpermissive")
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endif (MSVC)
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include_directories("src/")
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file(GLOB SRC "src/*.cpp")
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add_library(rtl_sdr_source SHARED ${SRC})
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target_link_libraries(rtl_sdr_source PRIVATE sdrpp_core)
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set_target_properties(rtl_sdr_source PROPERTIES PREFIX "")
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if (MSVC)
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# Lib path
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target_link_directories(sdrpp_core PUBLIC "C:/Program Files/PothosSDR/bin/")
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target_link_libraries(rtl_sdr_source PUBLIC rtlsdr)
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else (MSVC)
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find_package(PkgConfig)
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pkg_check_modules(LIBRTLSDR REQUIRED librtlsdr)
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target_include_directories(rtl_sdr_source PUBLIC ${LIBRTLSDR_INCLUDE_DIRS})
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target_link_directories(rtl_sdr_source PUBLIC ${LIBRTLSDR_LIBRARY_DIRS})
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target_link_libraries(rtl_sdr_source PUBLIC ${LIBRTLSDR_LIBRARIES})
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endif (MSVC)
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# Install directives
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install(TARGETS rtl_sdr_source DESTINATION lib/sdrpp/plugins)
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375
rtl_sdr_source/src/main.cpp
Normal file
375
rtl_sdr_source/src/main.cpp
Normal file
@@ -0,0 +1,375 @@
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#include <imgui.h>
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#include <spdlog/spdlog.h>
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#include <module.h>
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#include <gui/gui.h>
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#include <signal_path/signal_path.h>
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#include <core.h>
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#include <gui/style.h>
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#include <config.h>
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#include <options.h>
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#include <rtl-sdr.h>
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#define CONCAT(a, b) ((std::string(a) + b).c_str())
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SDRPP_MOD_INFO {
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/* Name: */ "rtl_sdr_source",
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/* Description: */ "RTL-SDR source module for SDR++",
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/* Author: */ "Ryzerth",
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/* Version: */ 0, 1, 0,
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/* Max instances */ 1
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};
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ConfigManager config;
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const double sampleRates[] = {
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250000,
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1024000,
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1536000,
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1792000,
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1920000,
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2048000,
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2160000,
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2560000,
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2880000,
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3200000
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};
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const char* sampleRatesTxt[] = {
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"250KHz",
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"1.024MHz",
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"1.536MHz",
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"1.792MHz",
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"1.92MHz",
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"2.048MHz",
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"2.16MHz",
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"2.56MHz",
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"2.88MHz",
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"3.2MHz"
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};
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const char* directSamplingModesTxt = "Disabled\0I branch\0Q branch\0";
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class RTLSDRSourceModule : public ModuleManager::Instance {
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public:
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RTLSDRSourceModule(std::string name) {
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this->name = name;
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sampleRate = sampleRates[0];
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handler.ctx = this;
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handler.selectHandler = menuSelected;
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handler.deselectHandler = menuDeselected;
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handler.menuHandler = menuHandler;
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handler.startHandler = start;
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handler.stopHandler = stop;
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handler.tuneHandler = tune;
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handler.stream = &stream;
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for (int i = 0; i < 10; i++) {
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sampleRateListTxt += sampleRatesTxt[i];
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sampleRateListTxt += '\0';
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}
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refresh();
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// Select device from config here
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selectFirst();
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core::setInputSampleRate(sampleRate);
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sigpath::sourceManager.registerSource("RTL-SDR", &handler);
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}
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~RTLSDRSourceModule() {
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}
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void enable() {
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enabled = true;
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}
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void disable() {
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enabled = false;
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}
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bool isEnabled() {
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return enabled;
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}
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void refresh() {
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devNames.clear();
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devListTxt = "";
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devCount = rtlsdr_get_device_count();
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char buf[1024];
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for (int i = 0; i < devCount; i++) {
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const char* devName = rtlsdr_get_device_name(i);
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sprintf(buf, "%s [%d]", devName, i);
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devNames.push_back(buf);
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devListTxt += buf;
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devListTxt += '\0';
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}
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}
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void selectFirst() {
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if (devCount > 0) {
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selectById(0);
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}
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}
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void selectByName(std::string name) {
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for (int i = 0; i < devCount; i++) {
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if (name == devNames[i]) {
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selectById(i);
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return;
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}
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}
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selectFirst();
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}
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void selectById(int id) {
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selectedDevName = devNames[id];
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if (rtlsdr_open(&openDev, id) < 0) {
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spdlog::error("Could not open RTL-SDR");
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return;
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}
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gainList.clear();
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int gains[256];
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int n = rtlsdr_get_tuner_gains(openDev, gains);
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gainList = std::vector<int>(gains, gains + n);
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std::sort(gainList.begin(), gainList.end());
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if (gainId >= gainList.size()) { gainId = gainList.size() - 1; }
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// Create config if needed
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// Load config
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rtlsdr_close(openDev);
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}
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private:
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std::string getBandwdithScaled(double bw) {
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char buf[1024];
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if (bw >= 1000000.0) {
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sprintf(buf, "%.1lfMHz", bw / 1000000.0);
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}
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else if (bw >= 1000.0) {
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sprintf(buf, "%.1lfKHz", bw / 1000.0);
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}
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else {
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sprintf(buf, "%.1lfHz", bw);
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}
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return std::string(buf);
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}
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static void menuSelected(void* ctx) {
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RTLSDRSourceModule* _this = (RTLSDRSourceModule*)ctx;
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core::setInputSampleRate(_this->sampleRate);
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spdlog::info("RTLSDRSourceModule '{0}': Menu Select!", _this->name);
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}
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static void menuDeselected(void* ctx) {
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RTLSDRSourceModule* _this = (RTLSDRSourceModule*)ctx;
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spdlog::info("RTLSDRSourceModule '{0}': Menu Deselect!", _this->name);
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}
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static void start(void* ctx) {
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RTLSDRSourceModule* _this = (RTLSDRSourceModule*)ctx;
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if (_this->running) {
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return;
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}
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if (rtlsdr_open(&_this->openDev, _this->devId) < 0) {
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spdlog::error("Could not open RTL-SDR");
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return;
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}
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rtlsdr_set_sample_rate(_this->openDev, _this->sampleRate);
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rtlsdr_set_center_freq(_this->openDev, _this->freq);
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rtlsdr_set_tuner_bandwidth(_this->openDev, 0);
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rtlsdr_set_direct_sampling(_this->openDev, _this->directSamplingMode);
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rtlsdr_set_agc_mode(_this->openDev, _this->directSamplingMode);
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rtlsdr_set_tuner_gain(_this->openDev, _this->gainList[_this->gainId]);
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if (_this->tunerAgc) {
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rtlsdr_set_tuner_gain_mode(_this->openDev, 0);
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}
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else {
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rtlsdr_set_tuner_gain_mode(_this->openDev, 1);
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rtlsdr_set_tuner_gain(_this->openDev, _this->gainList[_this->gainId]);
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}
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_this->asyncCount = (int)roundf(_this->sampleRate / (200 * 512)) * 512;
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_this->workerThread = std::thread(&RTLSDRSourceModule::worker, _this);
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_this->running = true;
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spdlog::info("RTLSDRSourceModule '{0}': Start!", _this->name);
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}
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static void stop(void* ctx) {
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RTLSDRSourceModule* _this = (RTLSDRSourceModule*)ctx;
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if (!_this->running) {
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return;
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}
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_this->running = false;
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_this->stream.stopWriter();
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rtlsdr_cancel_async(_this->openDev);
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if (_this->workerThread.joinable()) { _this->workerThread.join(); }
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_this->stream.clearWriteStop();
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rtlsdr_close(_this->openDev);
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spdlog::info("RTLSDRSourceModule '{0}': Stop!", _this->name);
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}
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static void tune(double freq, void* ctx) {
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RTLSDRSourceModule* _this = (RTLSDRSourceModule*)ctx;
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if (_this->running) {
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rtlsdr_set_center_freq(_this->openDev, freq);
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}
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_this->freq = freq;
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spdlog::info("RTLSDRSourceModule '{0}': Tune: {1}!", _this->name, freq);
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}
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static void menuHandler(void* ctx) {
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RTLSDRSourceModule* _this = (RTLSDRSourceModule*)ctx;
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float menuWidth = ImGui::GetContentRegionAvailWidth();
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if (_this->running) { style::beginDisabled(); }
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ImGui::SetNextItemWidth(menuWidth);
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if (ImGui::Combo(CONCAT("##_airspy_dev_sel_", _this->name), &_this->devId, _this->devListTxt.c_str())) {
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// Select RTL device here
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core::setInputSampleRate(_this->sampleRate);
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// Save config here
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}
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if (ImGui::Combo(CONCAT("##_airspy_sr_sel_", _this->name), &_this->srId, _this->sampleRateListTxt.c_str())) {
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_this->sampleRate = sampleRates[_this->srId];
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core::setInputSampleRate(_this->sampleRate);
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// Save config here
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}
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ImGui::SameLine();
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float refreshBtnWdith = menuWidth - ImGui::GetCursorPosX();
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if (ImGui::Button(CONCAT("Refresh##_airspy_refr_", _this->name), ImVec2(refreshBtnWdith, 0))) {
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_this->refresh();
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// Reselect dev from config here
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core::setInputSampleRate(_this->sampleRate);
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}
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if (_this->running) { style::endDisabled(); }
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// Rest of rtlsdr config here
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ImGui::Text("Direct Sampling");
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ImGui::SameLine();
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ImGui::SetNextItemWidth(menuWidth - ImGui::GetCursorPosX());
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if (ImGui::Combo(CONCAT("##_rtlsdr_ds_", _this->name), &_this->directSamplingMode, directSamplingModesTxt)) {
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if (_this->running) {
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rtlsdr_set_direct_sampling(_this->openDev, _this->directSamplingMode);
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}
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// Save config here
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}
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if (ImGui::Checkbox(CONCAT("RTL AGC##_rtlsdr_rtl_agc_", _this->name), &_this->rtlAgc)) {
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if (_this->running) {
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rtlsdr_set_agc_mode(_this->openDev, _this->rtlAgc);
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}
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// Save config here
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}
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if (ImGui::Checkbox(CONCAT("Tuner AGC##_rtlsdr_tuner_agc_", _this->name), &_this->tunerAgc)) {
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if (_this->running) {
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if (_this->tunerAgc) {
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rtlsdr_set_tuner_gain_mode(_this->openDev, 0);
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}
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else {
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rtlsdr_set_tuner_gain_mode(_this->openDev, 1);
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rtlsdr_set_tuner_gain(_this->openDev, _this->gainList[_this->gainId]);
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}
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}
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// Save config here
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}
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if (_this->tunerAgc) { style::beginDisabled(); }
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ImGui::SetNextItemWidth(menuWidth);
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if (ImGui::SliderInt(CONCAT("##_rtlsdr_gain_", _this->name), &_this->gainId, 0, _this->gainList.size() - 1, "")) {
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if (_this->running) {
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rtlsdr_set_tuner_gain(_this->openDev, _this->gainList[_this->gainId]);
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}
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// Save config here
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}
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if (_this->tunerAgc) { style::endDisabled(); }
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}
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void worker() {
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rtlsdr_reset_buffer(openDev);
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rtlsdr_read_async(openDev, asyncHandler, this, 0, asyncCount);
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}
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static void asyncHandler(unsigned char *buf, uint32_t len, void *ctx) {
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RTLSDRSourceModule* _this = (RTLSDRSourceModule*)ctx;
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int sampCount = len / 2;
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for (int i = 0; i < sampCount; i++) {
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_this->stream.writeBuf[i].i = (float)(buf[(i * 2) + 1] - 127) / 128.0f;
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_this->stream.writeBuf[i].q = (float)(buf[i * 2] - 127) / 128.0f;
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}
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if (!_this->stream.swap(sampCount)) { return; }
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}
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std::string name;
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rtlsdr_dev_t* openDev;
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bool enabled = true;
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dsp::stream<dsp::complex_t> stream;
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double sampleRate;
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SourceManager::SourceHandler handler;
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bool running = false;
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double freq;
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std::string selectedDevName = "";
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int devId = 0;
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int srId = 0;
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int devCount = 0;
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std::thread workerThread;
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bool biasT = false;
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int gainId = 0;
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std::vector<int> gainList;
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bool rtlAgc = false;
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bool tunerAgc = false;
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int directSamplingMode = 0;
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// Handler stuff
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int asyncCount = 0;
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std::vector<std::string> devNames;
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std::string devListTxt;
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std::string sampleRateListTxt;
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};
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MOD_EXPORT void _INIT_() {
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json def = json({});
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def["devices"] = json({});
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def["device"] = "";
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config.setPath(options::opts.root + "/rtl_sdr_config.json");
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config.load(def);
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config.enableAutoSave();
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}
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MOD_EXPORT ModuleManager::Instance* _CREATE_INSTANCE_(std::string name) {
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return new RTLSDRSourceModule(name);
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}
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MOD_EXPORT void _DELETE_INSTANCE_(ModuleManager::Instance* instance) {
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delete (RTLSDRSourceModule*)instance;
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}
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MOD_EXPORT void _END_() {
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config.disableAutoSave();
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config.save();
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}
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