airspy USB bitpacking

code/IQSource/IQSource_SoapySDR.cpp

@@ -349,6 +349,20 @@ bool IQSource_SoapySDR::setOption(const std::string& option, const void* p_data)
 		}
 		return true;
 	}
+	else if(option == "usb_pack_double")
+	{
+		double value = *reinterpret_cast<double*>(p_data_nonconst);
+		if(p_device_)
+		{
+			if(b_verbose)
+				cout<<"Set "<<option<<" = "<<setprecision(12)<<value<<endl;
+			if(value)
+				p_device_->writeSetting("bitpack", "true");
+			else
+				p_device_->writeSetting("bitpack", "false");
+		}
+		return true;
+	}
 	else
 	{
 		cout<<"IQSource_SoapySDR::setOption error. Unknown option: "<<option<<endl;
@@ -423,6 +437,19 @@ bool IQSource_SoapySDR::getOption(const std::string& option, void* p_data)
 		}
 		return false;
 	}
+	else if(option == "usb_pack_double")
+	{
+		if(p_device_)
+		{
+			double biastee_val =
+						p_device_->readSetting("bitpack") == string("true");
+			*reinterpret_cast<double*>(p_data) = biastee_val;
+			if(b_verbose)
+				cout<<"getOption "<<option<<" "<<biastee_val<<endl;
+			return true;
+		}
+		return false;
+	}
 	else
 	{
 		cout<<"IQSource_SoapySDR::getOption error. Unknown option: "<<option<<endl;

code/websocketServer/GLOBALS.h

@@ -85,6 +85,7 @@ public:
 	bool 	live_print_ = true;
 	bool 	afc_ = false;
 	double  ppm_ = 0;
+	bool 	usb_pack_ = false; // airspy usb bitpack
 	std::string 	sentence_cmd_ = "";
 	std::string 	habitat_payload_ = "";
 
@@ -110,6 +111,7 @@ public:
 			oFile<<"rtty = "<<GLOBALS::get().rtty_ascii_bits_<<endl;
 			oFile<<"rtty = "<<GLOBALS::get().rtty_ascii_stops_<<endl;
 			oFile<<"afc = "<<GLOBALS::get().afc_<<endl;
+			oFile<<"usb_pack = "<<GLOBALS::get().usb_pack_<<endl;
 			oFile<<"sentence_cmd = "<<GLOBALS::get().sentence_cmd_<<endl;
 			oFile<<"payload = "<<GLOBALS::get().habitat_payload_<<endl;
 		}
@@ -140,6 +142,7 @@ public:
 		cout<<"\trtty_ascii_bits: "<<GLOBALS::get().rtty_ascii_bits_<<endl;
 		cout<<"\trtty_ascii_stops: "<<GLOBALS::get().rtty_ascii_stops_<<endl;
 		cout<<"\tbiast: "<<GLOBALS::get().biast_<<endl;
+		cout<<"\tusb_pack: "<<GLOBALS::get().usb_pack_<<endl;
 	}
 
 

code/websocketServer/main.cpp

@@ -146,6 +146,8 @@ bool SetupDevice(SoapySDR::Kwargs& o_device)
 	double biastee = GLOBALS::get().biast_;
 	GLOBALS::get().p_iq_source_->setOption("biastee_double", &biastee);
 	GLOBALS::get().p_iq_source_->setOption("sampling_rate_double", &GLOBALS::get().sampling_rate_);
+	double usb_pack = GLOBALS::get().usb_pack_;
+	GLOBALS::get().p_iq_source_->setOption("usb_pack_double", &usb_pack);
 
 	// this works only if device is running. not yet here
 	// GLOBALS::get().p_iq_source_->setOption("ppm_double", &GLOBALS::get().ppm_);

code/websocketServer/program_options.cpp

@@ -93,6 +93,7 @@ void prog_opts(int ac, char* av[])
 			("biast",	po::value<bool>(), "biasT, values: 0, 1")
 			("bias_t",	po::value<bool>(), "biasT, values: 0, 1")
 			("afc",		po::value<bool>(), "Auto Frequency Correction, values: 0, 1")
+			("usb_pack",		po::value<bool>(), "AirSpy USB bit packing")
 
 			("sentence_cmd",	po::value<string>(), "Call external command with sentence as parameter")
 
@@ -204,6 +205,10 @@ void prog_opts(int ac, char* av[])
 		{
 			GLOBALS::get().afc_ = vm["afc"].as<bool>();
 		}
+		if (vm.count("usb_pack"))
+		{
+			GLOBALS::get().usb_pack_ = vm["usb_pack"].as<bool>();
+		}
 		if (vm.count("rtty"))
 		{
 			vector<float> rtty_tokens = vm["rtty"].as< vector<float> >();