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Refactored out rtl_tcp stuff to libs

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This commit is contained in:
Anthony Arnold 2015-05-10 22:57:43 +10:00
parent 6d16921845
commit 5f3ae0c66b
12 changed files with 486 additions and 119 deletions
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5
conf/gnss-sdr_GPS_L1_rtl_tcp_realtime.conf
View File

@ -72,12 +72,15 @@ 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
;#Address of the rtl_tcp server
;#Address of the rtl_tcp server (IPv6 allowed)
SignalSource.address=127.0.0.1
;#Port of the rtl_tcp server
SignalSource.port=1234
;# Set to true if I/Q samples come swapped
SignalSource.swap_iq=false
;######### SIGNAL_CONDITIONER CONFIG ############
;## It holds blocks to change data type, filter and resample input data.

1
src/algorithms/signal_source/CMakeLists.txt
View File

@ -16,5 +16,6 @@
# along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
#
add_subdirectory(libs)
add_subdirectory(adapters)
add_subdirectory(gnuradio_blocks)

37
src/algorithms/signal_source/adapters/rtl_tcp_signal_source.cc
View File

@ -68,6 +68,7 @@ RtlTcpSignalSource::RtlTcpSignalSource(ConfigurationInterface* configuration,
item_type_ = configuration->property(role + ".item_type", default_item_type);
address_ = configuration->property(role + ".address", default_address);
port_ = configuration->property(role + ".port", default_port);
flip_iq_ = configuration->property(role + ".flip_iq", false);
if (item_type_.compare("short") == 0)
{
@ -81,7 +82,7 @@ RtlTcpSignalSource::RtlTcpSignalSource(ConfigurationInterface* configuration,
{
std::cout << "Connecting to " << address_ << ":" << port_ << std::endl;
LOG (INFO) << "Connecting to " << address_ << ":" << port_;
signal_source_ = rtl_tcp_make_signal_source_c (address_, port_);
signal_source_ = rtl_tcp_make_signal_source_c (address_, port_, flip_iq_);
}
catch( boost::exception & e )
{
@ -94,21 +95,29 @@ RtlTcpSignalSource::RtlTcpSignalSource(ConfigurationInterface* configuration,
// 3. set rx frequency
signal_source_->set_frequency(freq_);
// TODO set rx gain
// 4. set rx gain
signal_source_->set_agc_mode(true);
/*if (this->AGC_enabled_ == true)
{
signal_source_->set_agc_mode(true);
std::cout << "AGC enabled" << std::endl;
LOG(INFO) << "AGC enabled";
}
if (this->AGC_enabled_ == true)
{
std::cout << "AGC enabled" << std::endl;
LOG(INFO) << "AGC enabled";
signal_source_->set_agc_mode(true);
}
else
{
signal_source_->set_agc_mode(false);
signal_source_->set_gain(gain_, 0);
signal_source_->set_if_gain(if_gain_, 0);
}*/
{
std::cout << "AGC disabled" << std::endl;
LOG(INFO) << "AGC disabled";
signal_source_->set_agc_mode(false);
std::cout << "Setting gain to " << gain_ << std::endl;
LOG(INFO) << "Setting gain to " << gain_;
signal_source_->set_gain(gain_);
std::cout << "Setting IF gain to " << if_gain_ << std::endl;
LOG(INFO) << "Setting IF gain to " << if_gain_;
signal_source_->set_if_gain(if_gain_);
}
}
else
{

1
src/algorithms/signal_source/adapters/rtl_tcp_signal_source.h
View File

@ -87,6 +87,7 @@ private:
short port_;
bool AGC_enabled_;
double sample_rate_;
bool flip_iq_;
unsigned int in_stream_;
unsigned int out_stream_;

3
src/algorithms/signal_source/gnuradio_blocks/CMakeLists.txt
View File

@ -25,6 +25,7 @@ set(SIGNAL_SOURCE_GR_BLOCKS_SOURCES
include_directories(
$(CMAKE_CURRENT_SOURCE_DIR)
${CMAKE_SOURCE_DIR}/src/algorithms/signal_source/libs
${GLOG_INCLUDE_DIRS}
${GFlags_INCLUDE_DIRS}
${GNURADIO_RUNTIME_INCLUDE_DIRS}
@ -34,4 +35,4 @@ include_directories(
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} ${Boost_LIBRARIES})
target_link_libraries(signal_source_gr_blocks signal_source_lib ${GNURADIO_RUNTIME_LIBRARIES} ${Boost_LIBRARIES})

233
src/algorithms/signal_source/gnuradio_blocks/rtl_tcp_signal_source_c.cc
View File

@ -3,6 +3,8 @@
* \brief An rtl_tcp signal source reader.
* \author Anthony Arnold, 2015. anthony.arnold(at)uqconnect.edu.au
*
* This module contains logic taken from gr-omsosdr
* <http://git.osmocom.org/gr-osmosdr>
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
@ -29,8 +31,11 @@
*/
#include "rtl_tcp_signal_source_c.h"
#include "rtl_tcp_commands.h"
#include "rtl_tcp_dongle_info.h"
#include <glog/logging.h>
#include <boost/thread/thread.hpp>
#include <map>
using google::LogMessage;
@ -38,119 +43,93 @@ namespace ip = boost::asio::ip;
using boost::asio::ip::tcp;
// Buffer constants
// TODO: Make these configurable
enum {
RTL_TCP_BUFFER_SIZE = 1024 * 16, // 16 KB
RTL_TCP_PAYLOAD_SIZE = 1024 * 4 // 4 KB
};
// command ids
enum {
CMD_ID_SET_FREQUENCY = 1,
CMD_ID_SET_SAMPLE_RATE = 2,
CMD_ID_SET_GAIN_MODE = 3,
CMD_ID_SET_GAIN = 4,
CMD_ID_SET_IF_GAIN = 6,
CMD_ID_SET_AGC_MODE = 8
};
// 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)
{
}
};
// set gain mode command
struct set_gain_mode_command : command {
set_gain_mode_command (bool manual)
: command (CMD_ID_SET_GAIN_MODE, static_cast<unsigned int>( manual ))
{
}
};
// set agc mode command
struct set_agc_mode_command : command {
set_agc_mode_command (bool manual)
: command (CMD_ID_SET_AGC_MODE, static_cast<unsigned int>( manual ))
{
}
};
rtl_tcp_signal_source_c_sptr
rtl_tcp_make_signal_source_c(const std::string &address,
short port)
short port,
bool flip_iq)
{
return gnuradio::get_initial_sptr (new rtl_tcp_signal_source_c (address, port));
return gnuradio::get_initial_sptr (new rtl_tcp_signal_source_c (address,
port,
flip_iq));
}
rtl_tcp_signal_source_c::rtl_tcp_signal_source_c(const std::string &address,
short port)
short port,
bool flip_iq)
: gr::sync_block ("rtl_tcp_signal_source_c",
gr::io_signature::make(0, 0, 0),
gr::io_signature::make(1, 1, sizeof(gr_complex))),
socket_ (io_service_),
data_ (RTL_TCP_PAYLOAD_SIZE),
flip_iq_(flip_iq),
buffer_ (RTL_TCP_BUFFER_SIZE),
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);
// 1. Setup lookup table
for (unsigned i = 0; i < 0xff; i++) {
lookup_[i] = ((float)(i & 0xff) - 127.4f) * (1.0f / 128.0f);
}
// 2. Set socket options
socket_.set_option (boost::asio::socket_base::reuse_address (true), ec);
if (ec) {
std::cout << "Failed to set reuse address option." << std::endl;
LOG (WARNING) << "Failed to set reuse address option";
}
socket_.set_option (boost::asio::socket_base::linger (true, 0), ec);
if (ec) {
std::cout << "Failed to set linger option." << std::endl;
LOG (WARNING) << "Failed to set linger option";
}
// 3. Connect socket
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";
LOG (ERROR) << 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 << "Failed to connect to " << addr << ":" << port
<< "(" << ec << ")" << std::endl;
LOG (ERROR) << "Failed to connect to " << addr << ":" << port
<< "(" << ec << ")";
return;
}
std::cout << "Connected to " << addr << ":" << port << std::endl;
LOG (WARNING) << "Connected to " << addr << ":" << port;
// 4. Set nodelay
socket_.set_option (tcp::no_delay (true), ec);
if (ec) {
std::cout << "Failed to set no delay option." << std::endl;
LOG (WARNING) << "Failed to set no delay option";
}
// 5. Receive dongle info
rtl_tcp_dongle_info info;
ec = info.read (socket_);
if (ec) {
std::cout << "Failed to read dongle info." << std::endl;
LOG (WARNING) << "Failed to read dongle info";
}
else if (info.is_valid ()) {
std::cout << "Found " << info.get_type_name() << " tuner." << std::endl;
LOG (INFO) << "Found " << info.get_type_name() << " tuner.";
}
// 6. Start reading
boost::asio::async_read (socket_, boost::asio::buffer (data_),
boost::bind (&rtl_tcp_signal_source_c::handle_read,
this, _1, _2));
@ -175,9 +154,14 @@ int rtl_tcp_signal_source_c::work (int noutput_items,
this));
for ( ; i < noutput_items && unread_ > 1; i++ ) {
float re = buffer_[--unread_];
float im = buffer_[--unread_];
out[i] = gr_complex (re, im);
float re = buffer_[--unread_];
if (flip_iq_) {
out[i] = gr_complex (im, re);
}
else {
out[i] = gr_complex (re, im);
}
}
}
not_full_.notify_one ();
@ -187,7 +171,7 @@ int rtl_tcp_signal_source_c::work (int noutput_items,
void rtl_tcp_signal_source_c::set_frequency (int frequency) {
boost::system::error_code ec =
set_frequency_command (frequency).send(socket_);
rtl_tcp_command (RTL_TCP_SET_FREQUENCY, frequency, socket_);
if (ec) {
std::cout << "Failed to set frequency" << std::endl;
LOG (WARNING) << "Failed to set frequency";
@ -196,7 +180,7 @@ void rtl_tcp_signal_source_c::set_frequency (int frequency) {
void rtl_tcp_signal_source_c::set_sample_rate (int sample_rate) {
boost::system::error_code ec =
set_sample_rate_command (sample_rate).send(socket_);
rtl_tcp_command (RTL_TCP_SET_SAMPLE_RATE, sample_rate, socket_);
if (ec) {
std::cout << "Failed to set sample rate" << std::endl;
LOG (WARNING) << "Failed to set sample rate";
@ -205,18 +189,79 @@ void rtl_tcp_signal_source_c::set_sample_rate (int sample_rate) {
void rtl_tcp_signal_source_c::set_agc_mode (bool agc) {
boost::system::error_code ec =
set_gain_mode_command (!agc).send (socket_);
if (ec) {
std::cout << "Failed to set gain mode" << std::endl;
LOG (WARNING) << "Failed to set gain mode";
}
ec =
set_agc_mode_command (agc).send (socket_);
if (ec) {
std::cout << "Failed to set gain mode" << std::endl;
LOG (WARNING) << "Failed to set gain mode";
}
boost::system::error_code ec =
rtl_tcp_command (RTL_TCP_SET_GAIN_MODE, !agc, socket_);
if (ec) {
std::cout << "Failed to set gain mode" << std::endl;
LOG (WARNING) << "Failed to set gain mode";
}
ec =
rtl_tcp_command (RTL_TCP_SET_AGC_MODE, agc, socket_);
if (ec) {
std::cout << "Failed to set gain mode" << std::endl;
LOG (WARNING) << "Failed to set gain mode";
}
}
void rtl_tcp_signal_source_c::set_gain (int gain) {
boost::system::error_code ec =
rtl_tcp_command (RTL_TCP_SET_GAIN, gain, socket_);
if (ec) {
std::cout << "Failed to set gain" << std::endl;
LOG (WARNING) << "Failed to set gain";
}
}
void rtl_tcp_signal_source_c::set_if_gain (int gain) {
// from gr-osmosdr
struct range {
double start, stop, step;
};
std::vector<range> ranges = {
{ -3, 6, 9 },
{ 0, 9, 3 },
{ 0, 9, 3 },
{ 0, 2, 1 },
{ 3, 15, 3},
{ 3, 15, 3}
};
std::map <int, double> gains;
for (int i = 0; i < static_cast<int>(ranges.size ()); i++) {
gains[i+1] = ranges[i].start;
}
for (int i = ranges.size() - 1; i >= 0; i--) {
const range &r = ranges[i];
double error = gain;
for (double g = r.start; g < r.stop; g += r.step) {
double sum = 0;
for (int j = 0; j < static_cast<int> ( gains.size() ); j++) {
if (i == j) {
sum += g;
}
else {
sum += gains[j + 1];
}
}
double err = std::abs (gain - sum);
if (err < error) {
error = err;
gains[i+1] = g;
}
}
}
for (unsigned stage = 1; stage <= gains.size(); stage++) {
int stage_gain = static_cast<int>( gains[stage] * 10 );
unsigned param = (stage << 16) | (stage_gain & 0xffff);
boost::system::error_code ec =
rtl_tcp_command (RTL_TCP_SET_IF_GAIN, param, socket_);
if (ec) {
std::cout << "Failed to set if gain" << std::endl;
LOG (WARNING) << "Failed to set if gain";
}
}
}
void
@ -252,7 +297,7 @@ rtl_tcp_signal_source_c::handle_read (const boost::system::error_code &ec,
unread_++;
}
}
// let woker know that more data is available
// let woker know that more data is available
not_empty_.notify_one ();
// Read some more
boost::asio::async_read (socket_,

24
src/algorithms/signal_source/gnuradio_blocks/rtl_tcp_signal_source_c.h
View File

@ -53,7 +53,8 @@ typedef boost::shared_ptr<rtl_tcp_signal_source_c>
rtl_tcp_signal_source_c_sptr
rtl_tcp_make_signal_source_c(const std::string &address,
short port);
short port,
bool flip_iq = false);
/*!
* \brief This class reads interleaved I/Q samples
@ -71,22 +72,27 @@ public:
void set_frequency (int frequency);
void set_sample_rate (int sample_rate);
void set_agc_mode (bool agc);
void set_gain (int gain);
void set_if_gain (int gain);
private:
typedef boost::circular_buffer_space_optimized<float> buffer_type;
friend rtl_tcp_signal_source_c_sptr
rtl_tcp_make_signal_source_c(const std::string &address,
short port);
short port,
bool flip_iq);
rtl_tcp_signal_source_c(const std::string &address,
short port);
short port,
bool flip_iq);
// IO members
boost::asio::io_service io_service_;
boost::asio::ip::tcp::socket socket_;
std::vector<unsigned char> data_;
bool flip_iq_;
// producer-consumer helpers
boost::mutex mutex_;
boost::condition not_full_;
@ -94,13 +100,13 @@ private:
buffer_type buffer_;
size_t unread_;
// lookup for scaling bytes
boost::array<float, 256> lookup_;
// lookup for scaling data
boost::array<float, 0xff> lookup_;
// async read callback
void handle_read (const boost::system::error_code &ec,
size_t bytes_transferred);
inline bool not_full ( ) const {
return unread_ < buffer_.capacity( );
}

25
src/algorithms/signal_source/libs/CMakeLists.txt Normal file
View File

@ -0,0 +1,25 @@
# Copyright (C) 2012-2015 (see AUTHORS file for a list of contributors)
#
# 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/>.
#
set (SIGNAL_SOURCE_LIB_SOURCES
rtl_tcp_commands.cc
rtl_tcp_dongle_info.cc)
file(GLOB SIGNAL_SOURCE_LIB_HEADERS "*.h")
add_library(signal_source_lib ${SIGNAL_SOURCE_LIB_SOURCES} ${SIGNAL_SOURCE_LIB_HEADERS})
source_group(Headers FILES ${SIGNAL_SOURCE_LIB_HEADERS})

53
src/algorithms/signal_source/libs/rtl_tcp_commands.cc Normal file
View File

@ -0,0 +1,53 @@
/*!
* \file rtl_tcp_commands.cc
* \brief Defines methods for communicating with rtl_tcp
* \author Anthony Arnold, 2015. anthony.arnold(at)uqconnect.edu.au
*
* This file contains information taken from librtlsdr:
* http://git.osmocom.org/rtl-sdr/
* -------------------------------------------------------------------------
*
* 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_commands.h"
#include <string.h>
using boost::asio::ip::tcp;
boost::system::error_code
rtl_tcp_command (RTL_TCP_COMMAND id, unsigned param, tcp::socket &socket) {
// Data payload
unsigned char data[sizeof (unsigned char) + sizeof (unsigned)];
data[0] = static_cast<unsigned char> (id);
unsigned nparam =
boost::asio::detail::socket_ops::host_to_network_long (param);
::memcpy (&data[1], &nparam, sizeof (nparam));
boost::system::error_code ec;
socket.send (boost::asio::buffer (data), 0, ec);
return ec;
}

55
src/algorithms/signal_source/libs/rtl_tcp_commands.h Normal file
View File

@ -0,0 +1,55 @@
/*!
* \file rtl_tcp_commands.h
* \brief Defines structures and constants for communicating with rtl_tcp
* \author Anthony Arnold, 2015. anthony.arnold(at)uqconnect.edu.au
*
* This file contains information taken from librtlsdr:
* http://git.osmocom.org/rtl-sdr/
* -------------------------------------------------------------------------
*
* 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_COMMANDS_H
#define GNSS_SDR_RTL_TCP_COMMANDS_H
#include <boost/asio/ip/tcp.hpp>
/// Command IDs for configuration rtl_tcp
enum RTL_TCP_COMMAND {
RTL_TCP_SET_FREQUENCY = 1,
RTL_TCP_SET_SAMPLE_RATE = 2,
RTL_TCP_SET_GAIN_MODE = 3,
RTL_TCP_SET_GAIN = 4,
RTL_TCP_SET_IF_GAIN = 6,
RTL_TCP_SET_AGC_MODE = 8
};
/*!
* \brief Send a command to rtl_tcp over the given socket.
*/
boost::system::error_code
rtl_tcp_command (RTL_TCP_COMMAND id, unsigned param,
boost::asio::ip::tcp::socket &socket);
#endif // GNSS_SDR_RTL_TCP_COMMANDS_H

90
src/algorithms/signal_source/libs/rtl_tcp_dongle_info.cc Normal file
View File

@ -0,0 +1,90 @@
/*!
* \file rtl_tcp_dongle_info.cc
* \brief Defines methods for retrieving and validating rtl_tcp donle
* info.
* \author Anthony Arnold, 2015. anthony.arnold(at)uqconnect.edu.au
*
* This file contains information taken from librtlsdr:
* http://git.osmocom.org/rtl-sdr/
* -------------------------------------------------------------------------
*
* 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_dongle_info.h"
#include <string.h>
using boost::asio::ip::tcp;
rtl_tcp_dongle_info::rtl_tcp_dongle_info ()
: tuner_type_ (0), tuner_gain_count_ (0)
{
::memset (magic_, 0, sizeof (magic_));
}
boost::system::error_code rtl_tcp_dongle_info::read (tcp::socket &socket) {
boost::system::error_code ec;
unsigned char data[sizeof (char) * 4 + sizeof (uint32_t) * 2];
socket.receive (boost::asio::buffer (data), 0, ec);
if (!ec) {
::memcpy (magic_, data, 4);
uint32_t type;
::memcpy (&type, &data[4], 4);
tuner_type_ =
boost::asio::detail::socket_ops::network_to_host_long (type);
uint32_t count;
::memcpy (&count, &data[8], 4);
tuner_gain_count_ =
boost::asio::detail::socket_ops::network_to_host_long (count);
}
return ec;
}
const char *rtl_tcp_dongle_info::get_type_name () const {
switch (get_tuner_type()) {
default:
return "UNKNOWN";
case TUNER_E4000:
return "E4000";
case TUNER_FC0012:
return "FC0012";
case TUNER_FC0013:
return "FC0013";
case TUNER_FC2580:
return "FC2580";
case TUNER_R820T:
return "R820T";
case TUNER_R828D:
return "R828D";
}
}
bool rtl_tcp_dongle_info::is_valid () const {
return ::memcmp (magic_, "RTL0", 4) == 0;
}

78
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/*!
* \file rtl_tcp_dongle_info.h
* \brief Interface for a structure sent by rtl_tcp defining the hardware.
* \author Anthony Arnold, 2015. anthony.arnold(at)uqconnect.edu.au
*
* This file contains information taken from librtlsdr:
* http://git.osmocom.org/rtl-sdr/
* -------------------------------------------------------------------------
*
* 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_DONGLE_INFO_H
#define GNSS_SDR_RTL_TCP_DONGLE_INFO_H
#include <boost/asio/ip/tcp.hpp>
/*!
* \brief This class represents the dongle information
* which is sent by rtl_tcp.
*/
class rtl_tcp_dongle_info {
public:
enum {
TUNER_UNKNOWN = 0,
TUNER_E4000,
TUNER_FC0012,
TUNER_FC0013,
TUNER_FC2580,
TUNER_R820T,
TUNER_R828D
};
private:
char magic_[4];
uint32_t tuner_type_;
uint32_t tuner_gain_count_;
public:
rtl_tcp_dongle_info ();
boost::system::error_code read (
boost::asio::ip::tcp::socket &socket);
bool is_valid () const;
const char *get_type_name () const;
inline uint32_t get_tuner_type () const {
return tuner_type_;
}
inline uint32_t get_tuner_gain_count () const {
return tuner_gain_count_;
}
};
#endif // GNSS_SDR_RTL_TCP_DONGLE_INFO_H