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rtl_tcp specific signal source block

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This commit is contained in:
Anthony Arnold 2015-05-08 16:59:38 +10:00
parent c9300c45a0
commit 128a7452d5
8 changed files with 672 additions and 42 deletions
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16
conf/gnss-sdr_GPS_L1_rtl_tcp_realtime.conf
View File

@ -9,7 +9,7 @@
;internal_fs_hz: Internal signal sampling frequency after the signal conditioning stage [Hz].
;FOR USE GNSS-SDR WITH RTLSDR DONGLES USER MUST SET THE CALIBRATED SAMPLE RATE HERE
; i.e. using front-end-cal as reported here:http://www.cttc.es/publication/turning-a-television-into-a-gnss-receiver/
GNSS-SDR.internal_fs_hz=1999898
GNSS-SDR.internal_fs_hz=1200000
;######### CONTROL_THREAD CONFIG ############
ControlThread.wait_for_flowgraph=false
@ -28,7 +28,7 @@ GNSS-SDR.SUPL_CI=0x31b0
;######### SIGNAL_SOURCE CONFIG ############
;#implementation: Use [File_Signal_Source] or [UHD_Signal_Source] or [GN3S_Signal_Source] [Osmosdr_Signal_Source]
SignalSource.implementation=Osmosdr_Signal_Source
SignalSource.implementation=RtlTcp_Signal_Source
;#filename: path to file with the captured GNSS signal samples to be processed
SignalSource.filename=/media/DATALOGGER_/signals/RTL-SDR/geo/pmt4.dat
@ -39,7 +39,7 @@ SignalSource.item_type=gr_complex
;#sampling_frequency: Original Signal sampling frequency in [Hz]
;FOR USE GNSS-SDR WITH RTLSDR DONGLES USER MUST SET THE CALIBRATED SAMPLE RATE HERE
; i.e. using front-end-cal as reported here:http://www.cttc.es/publication/turning-a-television-into-a-gnss-receiver/
SignalSource.sampling_frequency=2000000
SignalSource.sampling_frequency=1200000
;#freq: RF front-end center frequency in [Hz]
SignalSource.freq=1575420000
@ -72,9 +72,11 @@ SignalSource.dump_filename=../data/signal_source.dat
; it helps to not overload the CPU, but the processing time will be longer.
SignalSource.enable_throttle_control=false
;#Send optional arguments to the OsmoSdr Gnuradio block
;#Arguments are comma-delimited. See http://sdr.osmocom.org/trac/wiki/GrOsmoSDR for documentation.
SignalSource.osmosdr_args=rtl_tcp,offset_tune=1
;#Address of the rtl_tcp server
SignalSource.address=127.0.0.1
;#Port of the rtl_tcp server
SignalSource.port=1234
;######### SIGNAL_CONDITIONER CONFIG ############
;## It holds blocks to change data type, filter and resample input data.
@ -157,7 +159,7 @@ InputFilter.grid_density=16
;#InputFilter.IF is the intermediate frequency (in Hz) shifted down to zero Hz
;FOR USE GNSS-SDR WITH RTLSDR DONGLES USER MUST SET THE CALIBRATED SAMPLE RATE HERE
; i.e. using front-end-cal as reported here:http://www.cttc.es/publication/turning-a-television-into-a-gnss-receiver/
InputFilter.sampling_frequency=1999898
InputFilter.sampling_frequency=1200000
;# IF deviation due to front-end LO inaccuracies [HZ]
InputFilter.IF=80558

67
src/algorithms/signal_source/adapters/CMakeLists.txt
View File

@ -25,7 +25,7 @@ if(ENABLE_GN3S)
# find_package(GrGN3S)
# if not found, build it with ExternalPackage_Add
include(ExternalProject)
include(ExternalProject)
ExternalProject_Add(
gr-gn3s
SOURCE_DIR ${CMAKE_SOURCE_DIR}/drivers/gr-gn3s
@ -34,21 +34,21 @@ if(ENABLE_GN3S)
PATCH_COMMAND ""
INSTALL_COMMAND ""
)
# Set up variables
set(GRGN3S_INCLUDE_DIRS ${GRGN3S_DIR}/include ${GRGN3S_DIR} ${GRGN3S_DIR}/src)
set(GRGN3S_LIBRARIES
set(GRGN3S_LIBRARIES
"${CMAKE_CURRENT_BINARY_DIR}/../../../../gr-gn3s/lib/${CMAKE_FIND_LIBRARY_PREFIXES}gr-gn3s${CMAKE_SHARED_LIBRARY_SUFFIX}"
)
)
set(OPT_LIBRARIES ${OPT_LIBRARIES} ${GRGN3S_LIBRARIES})
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${GRGN3S_INCLUDE_DIRS})
set(OPT_DRIVER_SOURCES ${OPT_DRIVER_SOURCES} gn3s_signal_source.cc)
# Copy GN3S firmware binary file to install folder
message(STATUS "Copying the GN3S firmware binary file to install folder")
file(COPY ${CMAKE_SOURCE_DIR}/firmware/GN3S_v2/bin/gn3s_firmware.ihx
message(STATUS "Copying the GN3S firmware binary file to install folder")
file(COPY ${CMAKE_SOURCE_DIR}/firmware/GN3S_v2/bin/gn3s_firmware.ihx
DESTINATION ${CMAKE_SOURCE_DIR}/install/
)
)
endif(ENABLE_GN3S)
if(ENABLE_FLEXIBAND)
@ -61,15 +61,15 @@ if(ENABLE_FLEXIBAND)
find_package(teleorbit REQUIRED)
if(NOT TELEORBIT_FOUND)
message(FATAL_ERROR "Teleorbit Flexiband GNURadio driver required to build gnss-sdr with the optional FLEXIBAND adapter")
endif(NOT TELEORBIT_FOUND)
endif(NOT TELEORBIT_FOUND)
# Set up variables
set(FLEXIBAND_DRIVER_INCLUDE_DIRS
${OPT_DRIVER_INCLUDE_DIRS}
set(FLEXIBAND_DRIVER_INCLUDE_DIRS
${OPT_DRIVER_INCLUDE_DIRS}
${TELEORBIT_INCLUDE_DIR}/teleorbit
)
set(OPT_LIBRARIES ${OPT_LIBRARIES} ${TELEORBIT_LIBRARIES})
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${FLEXIBAND_DRIVER_INCLUDE_DIRS})
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${FLEXIBAND_DRIVER_INCLUDE_DIRS})
set(OPT_DRIVER_SOURCES ${OPT_DRIVER_SOURCES} flexiband_signal_source.cc)
endif(ENABLE_FLEXIBAND)
@ -83,7 +83,7 @@ if(ENABLE_ARRAY)
endif(OS_IS_MACOSX)
# find_package(GrDbfcttc)
# if not found, build it with ExternalPackage_Add
include(ExternalProject)
include(ExternalProject)
ExternalProject_Add(
gr-dbfcttc
SOURCE_DIR ${CMAKE_SOURCE_DIR}/drivers/gr-dbfcttc
@ -93,12 +93,12 @@ if(ENABLE_ARRAY)
CMAKE_ARGS ${MACOSX_ARGS}
INSTALL_COMMAND ""
)
# Set up variables
set(GRDBFCTTC_INCLUDE_DIRS ${GRDBFCTTC_DIR}/include ${GRDBFCTTC_DIR} ${GRDBFCTTC_DIR}/src)
set(GRDBFCTTC_LIBRARIES
set(GRDBFCTTC_LIBRARIES
"${CMAKE_CURRENT_BINARY_DIR}/../../../../gr-dbfcttc/lib/${CMAKE_FIND_LIBRARY_PREFIXES}gnuradio-dbfcttc${CMAKE_SHARED_LIBRARY_SUFFIX}"
)
)
set(OPT_LIBRARIES ${OPT_LIBRARIES} ${GRDBFCTTC_LIBRARIES})
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${GRDBFCTTC_INCLUDE_DIRS})
set(OPT_DRIVER_SOURCES ${OPT_DRIVER_SOURCES} raw_array_signal_source.cc)
@ -108,33 +108,34 @@ endif(ENABLE_ARRAY)
if(ENABLE_OSMOSDR)
################################################################################
# OsmoSDR - http://sdr.osmocom.org/trac/
################################################################################
################################################################################
find_package(GrOsmoSDR REQUIRED)
if(NOT GROSMOSDR_FOUND)
message(FATAL_ERROR "gr-osmosdr required to build gnss-sdr with the optional OSMOSDR driver")
endif(NOT GROSMOSDR_FOUND)
endif(NOT GROSMOSDR_FOUND)
# set OSMO include dirs
set(OSMO_DRIVER_INCLUDE_DIRS
${OPT_DRIVER_INCLUDE_DIRS}
set(OSMO_DRIVER_INCLUDE_DIRS
${OPT_DRIVER_INCLUDE_DIRS}
${GROSMOSDR_INCLUDE_DIR}/osmosdr
)
set(OPT_DRIVER_SOURCES ${OPT_DRIVER_SOURCES} osmosdr_signal_source.cc)
set(OPT_LIBRARIES ${OPT_LIBRARIES} ${GROSMOSDR_LIBRARIES})
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${OSMO_DRIVER_INCLUDE_DIRS})
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${OSMO_DRIVER_INCLUDE_DIRS})
endif(ENABLE_OSMOSDR)
if(ENABLE_UHD)
set(OPT_DRIVER_SOURCES ${OPT_DRIVER_SOURCES} uhd_signal_source.cc)
set(OPT_LIBRARIES ${OPT_LIBRARIES} ${UHD_LIBRARIES} ${GNURADIO_UHD_LIBRARIES})
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${UHD_INCLUDE_DIRS})
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${UHD_INCLUDE_DIRS})
endif(ENABLE_UHD)
set(SIGNAL_SOURCE_ADAPTER_SOURCES file_signal_source.cc
gen_signal_source.cc
nsr_file_signal_source.cc
set(SIGNAL_SOURCE_ADAPTER_SOURCES file_signal_source.cc
gen_signal_source.cc
nsr_file_signal_source.cc
spir_file_signal_source.cc
rtl_tcp_signal_source.cc
${OPT_DRIVER_SOURCES}
)
@ -147,7 +148,7 @@ include_directories(
${CMAKE_SOURCE_DIR}/src/algorithms/libs
${CMAKE_SOURCE_DIR}/src/algorithms/signal_source/gnuradio_blocks
${GLOG_INCLUDE_DIRS}
${GFlags_INCLUDE_DIRS}
${GFlags_INCLUDE_DIRS}
${Boost_INCLUDE_DIRS}
${GNURADIO_RUNTIME_INCLUDE_DIRS}
${VOLK_INCLUDE_DIRS}
@ -162,10 +163,10 @@ add_definitions(-DGNSSSDR_INSTALL_DIR="${CMAKE_INSTALL_PREFIX}")
file(GLOB SIGNAL_SOURCE_ADAPTER_HEADERS "*.h")
add_library(signal_source_adapters ${SIGNAL_SOURCE_ADAPTER_SOURCES} ${SIGNAL_SOURCE_ADAPTER_HEADERS})
source_group(Headers FILES ${SIGNAL_SOURCE_ADAPTER_HEADERS})
target_link_libraries(signal_source_adapters signal_source_gr_blocks
${Boost_LIBRARIES}
${GNURADIO_PMT_LIBRARIES}
${GNURADIO_BLOCKS_LIBRARIES}
${OPT_LIBRARIES}
target_link_libraries(signal_source_adapters signal_source_gr_blocks
${Boost_LIBRARIES}
${GNURADIO_PMT_LIBRARIES}
${GNURADIO_BLOCKS_LIBRARIES}
${OPT_LIBRARIES}
gnss_sp_libs
)

188
src/algorithms/signal_source/adapters/rtl_tcp_signal_source.cc Normal file
View File

@ -0,0 +1,188 @@
/*!
* \file rtl_tcp_signal_source.cc
* \brief Signal source for the Realtek RTL2832U USB dongle DVB-T receiver
* over TCP.
* (see http://sdr.osmocom.org/trac/wiki/rtl-sdr for more information)
* \author Anthony Arnold, 2015. anthony.arnold(at)uqconnect.edu.au
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNSS-SDR is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#include "rtl_tcp_signal_source.h"
#include <glog/logging.h>
#include <iostream>
#include <boost/format.hpp>
#include "configuration_interface.h"
#include "gnss_sdr_valve.h"
#include "GPS_L1_CA.h"
using google::LogMessage;
RtlTcpSignalSource::RtlTcpSignalSource(ConfigurationInterface* configuration,
std::string role, unsigned int in_stream, unsigned int out_stream,
boost::shared_ptr<gr::msg_queue> queue) :
role_(role), in_stream_(in_stream), out_stream_(out_stream),
queue_(queue)
{
// DUMP PARAMETERS
std::string empty = "";
std::string default_dump_file = "./data/signal_source.dat";
std::string default_item_type = "gr_complex";
samples_ = configuration->property(role + ".samples", 0);
dump_ = configuration->property(role + ".dump", false);
dump_filename_ = configuration->property(role + ".dump_filename",
default_dump_file);
// rtl_tcp PARAMTERS
std::string default_address = "127.0.0.1";
short default_port = 1234;
AGC_enabled_ = configuration->property(role + ".AGC_enabled", true);
freq_ = configuration->property(role + ".freq", GPS_L1_FREQ_HZ);
gain_ = configuration->property(role + ".gain", (double)40.0);
rf_gain_ = configuration->property(role + ".rf_gain", (double)40.0);
if_gain_ = configuration->property(role + ".if_gain", (double)40.0);
sample_rate_ = configuration->property(role + ".sampling_frequency", (double)2.0e6);
item_type_ = configuration->property(role + ".item_type", default_item_type);
address_ = configuration->property(role + ".address", default_address);
port_ = configuration->property(role + ".port", default_port);
if (item_type_.compare("short") == 0)
{
item_size_ = sizeof(short);
}
else if (item_type_.compare("gr_complex") == 0)
{
item_size_ = sizeof(gr_complex);
// 1. Make the gr block
try
{
std::cout << "Connecting to " << address_ << ":" << port_ << std::endl;
LOG (INFO) << "Connecting to " << address_ << ":" << port_;
signal_source_ = rtl_tcp_make_signal_source_cc (address_, port_);
}
catch( boost::exception & e )
{
DLOG(FATAL) << "Boost exception: " << boost::diagnostic_information(e);
}
// 2 set sampling rate
signal_source_->set_sample_rate(sample_rate_);
// 3. set rx frequency
signal_source_->set_frequency(freq_);
// 4. set rx gain
/*if (this->AGC_enabled_ == true)
{
osmosdr_source_->set_gain_mode(true);
std::cout << "AGC enabled" << std::endl;
LOG(INFO) << "AGC enabled";
}
else
{
osmosdr_source_->set_gain_mode(false);
osmosdr_source_->set_gain(gain_, 0);
osmosdr_source_->set_if_gain(if_gain_, 0);
osmosdr_source_->set_bb_gain(rf_gain_, 0);
}*/
}
else
{
LOG(WARNING) << item_type_ << " unrecognized item type. Using short.";
item_size_ = sizeof(short);
}
if (samples_ != 0)
{
DLOG(INFO) << "Send STOP signal after " << samples_ << " samples";
valve_ = gnss_sdr_make_valve(item_size_, samples_, queue_);
DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
}
if (dump_)
{
DLOG(INFO) << "Dumping output into file " << dump_filename_;
file_sink_ = gr::blocks::file_sink::make(item_size_, dump_filename_.c_str());
DLOG(INFO) << "file_sink(" << file_sink_->unique_id() << ")";
}
deinterleave_ = gr::blocks::deinterleave::make (sizeof (float));
ftoc_ = gr::blocks::float_to_complex::make ( 1 );
}
RtlTcpSignalSource::~RtlTcpSignalSource()
{}
void RtlTcpSignalSource::connect(gr::top_block_sptr top_block) {
// deinterleave and convert to complex
top_block->connect (signal_source_, 0, deinterleave_, 0);
top_block->connect (deinterleave_, 0, ftoc_, 0);
top_block->connect (deinterleave_, 1, ftoc_, 1);
if ( samples_ ) {
top_block->connect (ftoc_, 0, valve_, 0);
DLOG(INFO) << "connected rtl tcp source to valve";
if ( dump_ ) {
top_block->connect(valve_, 0, file_sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
else if ( dump_ ) {
top_block->connect(ftoc_, 0, file_sink_, 0);
DLOG(INFO) << "connected rtl tcp source to file sink";
}
}
void RtlTcpSignalSource::disconnect(gr::top_block_sptr top_block) {
top_block->disconnect (signal_source_, 0, deinterleave_, 0);
top_block->disconnect (deinterleave_, 0, ftoc_, 0);
top_block->disconnect (deinterleave_, 1, ftoc_, 1);
if ( samples_ ) {
top_block->disconnect (ftoc_, 0, valve_, 0);
if ( dump_ ) {
top_block->disconnect(valve_, 0, file_sink_, 0);
}
}
else if ( dump_ ) {
top_block->disconnect(ftoc_, 0, file_sink_, 0);
}
}
gr::basic_block_sptr RtlTcpSignalSource::get_left_block() {
LOG(WARNING) << "Trying to get signal source left block.";
return gr::basic_block_sptr();
}
gr::basic_block_sptr RtlTcpSignalSource::get_right_block() {
if (samples_ != 0) {
return valve_;
}
else {
return ftoc_;
}
}

114
src/algorithms/signal_source/adapters/rtl_tcp_signal_source.h Normal file
View File

@ -0,0 +1,114 @@
/*!
* \file rtl_tcp_signal_source.h
* \brief Signal source which reads from rtl_tcp.
* (see http://sdr.osmocom.org/trac/wiki/rtl-sdr for more information)
* \author Anthony Arnold, 2015. anthony.arnold(at)uqconnect.edu.au
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNSS-SDR is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_RTL_TCP_SIGNAL_SOURCE_H
#define GNSS_SDR_RTL_TCP_SIGNAL_SOURCE_H
#include <string>
#include <boost/shared_ptr.hpp>
#include <gnuradio/msg_queue.h>
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/deinterleave.h>
#include <gnuradio/blocks/float_to_complex.h>
#include "rtl_tcp_signal_source_cc.h"
#include "gnss_block_interface.h"
class ConfigurationInterface;
/*!
* \brief This class reads from rtl_tcp, which streams interleaved
* I/Q samples over TCP.
* (see http://sdr.osmocom.org/trac/wiki/rtl-sdr)
*/
class RtlTcpSignalSource: public GNSSBlockInterface
{
public:
RtlTcpSignalSource(ConfigurationInterface* configuration,
std::string role, unsigned int in_stream,
unsigned int out_stream, boost::shared_ptr<gr::msg_queue> queue);
virtual ~RtlTcpSignalSource();
std::string role()
{
return role_;
}
/*!
* \brief Returns "RtlTcp_Signal_Source"
*/
std::string implementation()
{
return "RtlTcp_Signal_Source";
}
size_t item_size()
{
return item_size_;
}
void connect(gr::top_block_sptr top_block);
void disconnect(gr::top_block_sptr top_block);
gr::basic_block_sptr get_left_block();
gr::basic_block_sptr get_right_block();
private:
std::string role_;
// rtl_tcp settings
std::string address_;
short port_;
bool AGC_enabled_;
double sample_rate_;
unsigned int in_stream_;
unsigned int out_stream_;
double freq_;
double gain_;
double if_gain_;
double rf_gain_;
std::string item_type_;
size_t item_size_;
long samples_;
bool dump_;
std::string dump_filename_;
rtl_tcp_signal_source_cc_sptr signal_source_;
gr::blocks::deinterleave::sptr deinterleave_;
gr::blocks::float_to_complex::sptr ftoc_;
boost::shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr file_sink_;
boost::shared_ptr<gr::msg_queue> queue_;
};
#endif /*GNSS_SDR_RTL_TCP_SIGNAL_SOURCE_H */

6
src/algorithms/signal_source/gnuradio_blocks/CMakeLists.txt
View File

@ -17,9 +17,10 @@
#
set(SIGNAL_SOURCE_GR_BLOCKS_SOURCES
set(SIGNAL_SOURCE_GR_BLOCKS_SOURCES
unpack_byte_2bit_samples.cc
unpack_intspir_1bit_samples.cc
rtl_tcp_signal_source_cc.cc
)
include_directories(
@ -27,9 +28,10 @@ include_directories(
${GLOG_INCLUDE_DIRS}
${GFlags_INCLUDE_DIRS}
${GNURADIO_RUNTIME_INCLUDE_DIRS}
${Boost_INCLUDE_DIRS}
)
file(GLOB SIGNAL_SOURCE_GR_BLOCKS_HEADERS "*.h")
add_library(signal_source_gr_blocks ${SIGNAL_SOURCE_GR_BLOCKS_SOURCES} ${SIGNAL_SOURCE_GR_BLOCKS_HEADERS})
source_group(Headers FILES ${SIGNAL_SOURCE_GR_BLOCKS_HEADERS})
target_link_libraries(signal_source_gr_blocks ${GNURADIO_RUNTIME_LIBRARIES})
target_link_libraries(signal_source_gr_blocks ${GNURADIO_RUNTIME_LIBRARIES} ${Boost_LIBRARIES})

207
src/algorithms/signal_source/gnuradio_blocks/rtl_tcp_signal_source_cc.cc Normal file
View File

@ -0,0 +1,207 @@
/*!
* \file rtl_tcp_signal_source_cc.cc
* \brief An rtl_tcp signal source reader.
* \author Anthony Arnold, 2015. anthony.arnold(at)uqconnect.edu.au
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNSS-SDR is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#include "rtl_tcp_signal_source_cc.h"
#include <glog/logging.h>
#include <boost/thread.hpp>
using google::LogMessage;
namespace ip = boost::asio::ip;
using boost::asio::ip::tcp;
// command ids
enum {
CMD_ID_SET_FREQUENCY = 1,
CMD_ID_SET_SAMPLE_RATE = 2
};
// rtl_tcp command
struct command {
enum {
data_size = 1 + sizeof (unsigned int)
};
boost::array<unsigned char, data_size> data_;
command (unsigned char cmd, unsigned int param)
{
data_[0] = cmd;
unsigned int nparam =
boost::asio::detail::socket_ops::host_to_network_long (param);
memcpy (&data_[1], &nparam, sizeof (nparam));
}
boost::system::error_code send (tcp::socket &socket_) {
boost::system::error_code ec;
socket_.send (boost::asio::buffer (data_), 0, ec);
return ec;
}
};
// set frequency command
struct set_frequency_command : command {
set_frequency_command (unsigned int freq)
: command (CMD_ID_SET_FREQUENCY, freq)
{
}
};
// set sample rate command
struct set_sample_rate_command : command {
set_sample_rate_command (unsigned int sample_rate)
: command (CMD_ID_SET_SAMPLE_RATE, sample_rate)
{
}
};
rtl_tcp_signal_source_cc_sptr
rtl_tcp_make_signal_source_cc(const std::string &address,
short port)
{
return gnuradio::get_initial_sptr (new rtl_tcp_signal_source_cc (address, port));
}
rtl_tcp_signal_source_cc::rtl_tcp_signal_source_cc(const std::string &address,
short port)
: gr::sync_block ("rtl_tcp_signal_source_cc",
gr::io_signature::make(0, 0, 0),
gr::io_signature::make(1, 1, sizeof(float))),
socket_ (io_service_),
buffer_ (1048576),
unread_ (0)
{
boost::system::error_code ec;
for (int i = 0; i < 256; i++) {
lookup_[i] = (((float)(i & 0xff)) - 127.4f) * (1.0f / 128.0f);
}
ip::address addr = ip::address::from_string (address, ec);
if (ec) {
std::cout << address << " is not an IP address" << std::endl;
LOG (WARNING) << address << " is not an IP address";
return;
}
socket_.connect(tcp::endpoint (addr, port), ec);
if (ec) {
std::cout << "Failed to connect to " << addr << ":" << port
<< "(" << ec << ")" << std::endl;
LOG (WARNING) << "Failed to connect to " << addr << ":" << port
<< "(" << ec << ")";
return;
}
std::cout << "Connected to " << addr << ":" << port << std::endl;
LOG (WARNING) << "Connected to " << addr << ":" << port;
boost::asio::async_read (socket_, boost::asio::buffer (data_),
boost::bind (&rtl_tcp_signal_source_cc::handle_read,
this, _1, _2));
boost::thread (boost::bind (&boost::asio::io_service::run, &io_service_));
//io_service_.poll ();
}
rtl_tcp_signal_source_cc::~rtl_tcp_signal_source_cc()
{
io_service_.stop ();
}
int rtl_tcp_signal_source_cc::work (int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
float *out = reinterpret_cast <float *>( output_items[0] );
int i = 0;
{
boost::mutex::scoped_lock lock (mutex_);
not_empty_.wait (lock, boost::bind (&rtl_tcp_signal_source_cc::not_empty,
this));
for ( ; i < noutput_items && unread_ > 0; i++ ) {
out[i] = buffer_[--unread_];
}
}
not_full_.notify_one ();
return i == 0 ? -1 : i;
}
void rtl_tcp_signal_source_cc::set_frequency (int frequency) {
boost::system::error_code ec =
set_frequency_command (frequency).send(socket_);
if (ec) {
std::cout << "Failed to set frequency" << std::endl;
LOG (WARNING) << "Failed to set frequency";
}
}
void rtl_tcp_signal_source_cc::set_sample_rate (int sample_rate) {
boost::system::error_code ec =
set_sample_rate_command (sample_rate).send(socket_);
if (ec) {
std::cout << "Failed to set sample rate" << std::endl;
LOG (WARNING) << "Failed to set sample rate";
}
}
void rtl_tcp_signal_source_cc::handle_read (const boost::system::error_code &ec,
size_t bytes_transferred)
{
if (ec) {
std::cout << "Error during read: " << ec << std::endl;
LOG (WARNING) << "Error during read: " << ec;
not_empty_.notify_one ();
}
else {
{
boost::mutex::scoped_lock lock (mutex_);
not_full_.wait (lock, boost::bind (&rtl_tcp_signal_source_cc::not_full,
this));
for (size_t i = 0; i < bytes_transferred; i++) {
while (!not_full( )) {
not_empty_.notify_one ();
not_full_.wait (lock, boost::bind (&rtl_tcp_signal_source_cc::not_full,
this));
}
buffer_.push_front (lookup_ [data_[i]]);
unread_++;
}
}
not_empty_.notify_one ();
boost::asio::async_read (socket_, boost::asio::buffer (data_),
boost::bind (&rtl_tcp_signal_source_cc::handle_read,
this, _1, _2));
}
}

100
src/algorithms/signal_source/gnuradio_blocks/rtl_tcp_signal_source_cc.h Normal file
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@ -0,0 +1,100 @@
/*!
* \file rtl_tcp_signal_source_cc.h
* \brief Interface of an rtl_tcp signal source reader.
* \author Anthony Arnold, 2015. anthony.arnold(at)uqconnect.edu.au
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNSS-SDR is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_RTL_TCP_SIGNAL_SOURCE_CC_H
#define GNSS_SDR_RTL_TCP_SIGNAL_SOURCE_CC_H
#include <boost/asio.hpp>
#include <gnuradio/sync_block.h>
#include <string>
#include <boost/thread/mutex.hpp>
#include <boost/thread/condition.hpp>
#include <boost/array.hpp>
#include <boost/circular_buffer.hpp>
class rtl_tcp_signal_source_cc;
typedef boost::shared_ptr<rtl_tcp_signal_source_cc>
rtl_tcp_signal_source_cc_sptr;
rtl_tcp_signal_source_cc_sptr
rtl_tcp_make_signal_source_cc(const std::string &address,
short port);
/*!
* \brief This class reads interleaved I/Q samples
* from an rtl_tcp server.
*/
class rtl_tcp_signal_source_cc : public gr::sync_block
{
public:
~rtl_tcp_signal_source_cc();
int work (int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
void set_frequency (int frequency);
void set_sample_rate (int sample_rate);
private:
friend rtl_tcp_signal_source_cc_sptr
rtl_tcp_make_signal_source_cc(const std::string &address,
short port);
rtl_tcp_signal_source_cc(const std::string &address,
short port);
boost::asio::io_service io_service_;
boost::asio::ip::tcp::socket socket_;
boost::mutex mutex_;
boost::condition not_full_;
boost::condition not_empty_;
boost::circular_buffer<float> buffer_;
size_t unread_;
boost::array<float, 256> lookup_;
boost::array<unsigned char, 256> data_;
void handle_read (const boost::system::error_code &ec,
size_t bytes_transferred);
inline bool not_full ( ) const {
return unread_ < buffer_.capacity( );
}
inline bool not_empty ( ) const {
return unread_ > 0;
}
};
#endif //GNSS_SDR_RTL_TCP_SIGNAL_SOURCE_CC_H

16
src/core/receiver/gnss_block_factory.cc
View File

@ -46,6 +46,7 @@
#include "file_signal_source.h"
#include "nsr_file_signal_source.h"
#include "spir_file_signal_source.h"
#include "rtl_tcp_signal_source.h"
#include "null_sink_output_filter.h"
#include "file_output_filter.h"
#include "channel.h"
@ -427,6 +428,21 @@ std::unique_ptr<GNSSBlockInterface> GNSSBlockFactory::GetBlock(
out_streams, queue));
block = std::move(block_);
}
catch (const std::exception &e)
{
std::cout << "GNSS-SDR program ended." << std::endl;
exit(1);
}
}
else if (implementation.compare("RtlTcp_Signal_Source") == 0)
{
try
{
std::unique_ptr<GNSSBlockInterface> block_(new RtlTcpSignalSource(configuration.get(), role, in_streams,
out_streams, queue));
block = std::move(block_);
}
catch (const std::exception &e)
{