airspy: add support for AirSpy wideband receiver

Requires https://github.com/airspy/host

Usage example:

osmocom_fft -a airspy

The following named gain stages are available:

LNA: 0 to 15, step 1
MIX: 0 to 15, step 1
IF: 0 to 15, step 1

At the moment the gains are not in dB but gain indices internal to R820t
tuner.
wip-signat
Dimitri Stolnikov 9 years ago
parent 24f6f88a37
commit 154c4ddd5f
  1. 1
      CMakeLists.txt
  2. 1
      README
  3. 24
      cmake/Modules/FindLibAIRSPY.cmake
  4. 2
      grc/gen_osmosdr_blocks.py
  5. 8
      lib/CMakeLists.txt
  6. 37
      lib/airspy/CMakeLists.txt
  7. 609
      lib/airspy/airspy_source_c.cc
  8. 146
      lib/airspy/airspy_source_c.h
  9. 1
      lib/config.h.in
  10. 9
      lib/device.cc
  11. 18
      lib/source_impl.cc

@ -158,6 +158,7 @@ find_package(LibOsmoSDR)
find_package(LibRTLSDR)
find_package(LibMiriSDR)
find_package(LibHackRF)
find_package(LibAIRSPY)
find_package(LibbladeRF)
find_package(Doxygen)

@ -9,6 +9,7 @@ as well supports:
* MSi2500 based DVB-T dongles through libmirisdr
* gnuradio .cfile input through libgnuradio-blocks
* RFSPACE SDR-IQ, SDR-IP, NetSDR (incl. X2 option)
* AirSpy Wideband Receiver through libairspy
* Great Scott Gadgets HackRF through libhackrf
* Nuand LLC bladeRF through libbladeRF library
* Ettus USRP Devices through Ettus UHD library

@ -0,0 +1,24 @@
INCLUDE(FindPkgConfig)
PKG_CHECK_MODULES(PC_LIBAIRSPY libairspy)
FIND_PATH(
LIBAIRSPY_INCLUDE_DIRS
NAMES libairspy/airspy.h
HINTS $ENV{LIBAIRSPY_DIR}/include
${PC_LIBAIRSPY_INCLUDEDIR}
PATHS /usr/local/include
/usr/include
)
FIND_LIBRARY(
LIBAIRSPY_LIBRARIES
NAMES airspy
HINTS $ENV{LIBAIRSPY_DIR}/lib
${PC_LIBAIRSPY_LIBDIR}
PATHS /usr/local/lib
/usr/lib
)
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBAIRSPY DEFAULT_MSG LIBAIRSPY_LIBRARIES LIBAIRSPY_INCLUDE_DIRS)
MARK_AS_ADVANCED(LIBAIRSPY_LIBRARIES LIBAIRSPY_INCLUDE_DIRS)

@ -123,6 +123,7 @@ While primarily being developed for the OsmoSDR hardware, this block as well sup
* MSi2500 based DVB-T dongles through libmirisdr
* gnuradio .cfile input through libgnuradio-blocks
* RFSPACE SDR-IQ, SDR-IP, NetSDR (incl. X2 option)
* AirSpy Wideband Receiver through libairspy
#end if
* Great Scott Gadgets HackRF through libhackrf
* Nuand LLC bladeRF through libbladeRF library
@ -156,6 +157,7 @@ Lines ending with ... mean it's possible to bind devices together by specifying
netsdr=127.0.0.1[:50000][,nchan=2]
sdr-ip=127.0.0.1[:50000]
sdr-iq=/dev/ttyUSB0
airspy=0
#end if
hackrf=0[,buffers=32]
bladerf=0[,fpga='/path/to/the/bitstream.rbf']

@ -146,6 +146,14 @@ if(ENABLE_RFSPACE)
GR_INCLUDE_SUBDIRECTORY(rfspace)
endif(ENABLE_RFSPACE)
########################################################################
# Setup AIRSPY component
########################################################################
GR_REGISTER_COMPONENT("AIRSPY Receiver" ENABLE_AIRSPY LIBAIRSPY_FOUND)
if(ENABLE_AIRSPY)
GR_INCLUDE_SUBDIRECTORY(airspy)
endif(ENABLE_AIRSPY)
########################################################################
# Setup configuration file
########################################################################

@ -0,0 +1,37 @@
# Copyright 2012 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio 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, or (at your option)
# any later version.
#
# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
########################################################################
# This file included, use CMake directory variables
########################################################################
include_directories(
${CMAKE_CURRENT_SOURCE_DIR}
${LIBAIRSPY_INCLUDE_DIRS}
)
set(airspy_srcs
${CMAKE_CURRENT_SOURCE_DIR}/airspy_source_c.cc
)
########################################################################
# Append gnuradio-osmosdr library sources
########################################################################
list(APPEND gr_osmosdr_srcs ${airspy_srcs})
list(APPEND gr_osmosdr_libs ${LIBAIRSPY_LIBRARIES} ${GNURADIO_FILTER_LIBRARIES} ${GNURADIO_BLOCKS_LIBRARIES})

@ -0,0 +1,609 @@
/* -*- c++ -*- */
/*
* Copyright 2013 Dimitri Stolnikov <horiz0n@gmx.net>
*
* GNU Radio 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, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
/*
* config.h is generated by configure. It contains the results
* of probing for features, options etc. It should be the first
* file included in your .cc file.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdexcept>
#include <iostream>
#include <boost/assign.hpp>
#include <boost/format.hpp>
#include <boost/detail/endian.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/thread/thread.hpp>
#include <gnuradio/io_signature.h>
#include "airspy_source_c.h"
#include "arg_helpers.h"
using namespace boost::assign;
#define AIRSPY_THROW_ON_ERROR(ret, msg) \
if ( ret != AIRSPY_SUCCESS ) \
throw std::runtime_error( boost::str( boost::format(msg " (%d) %s") \
% ret % airspy_error_name((enum airspy_error)ret) ) );
#define AIRSPY_FUNC_STR(func, arg) \
boost::str(boost::format(func "(%d)") % arg) + " has failed"
int airspy_source_c::_usage = 0;
boost::mutex airspy_source_c::_usage_mutex;
airspy_source_c_sptr make_airspy_source_c (const std::string & args)
{
return gnuradio::get_initial_sptr(new airspy_source_c (args));
}
/*
* Specify constraints on number of input and output streams.
* This info is used to construct the input and output signatures
* (2nd & 3rd args to gr::block's constructor). The input and
* output signatures are used by the runtime system to
* check that a valid number and type of inputs and outputs
* are connected to this block. In this case, we accept
* only 0 input and 1 output.
*/
static const int MIN_IN = 0; // mininum number of input streams
static const int MAX_IN = 0; // maximum number of input streams
static const int MIN_OUT = 1; // minimum number of output streams
static const int MAX_OUT = 1; // maximum number of output streams
/*
* The private constructor
*/
airspy_source_c::airspy_source_c (const std::string &args)
: gr::sync_block ("airspy_source_c",
gr::io_signature::make(MIN_IN, MAX_IN, sizeof (gr_complex)),
gr::io_signature::make(MIN_OUT, MAX_OUT, sizeof (gr_complex))),
_dev(NULL),
_sample_rate(0),
_center_freq(0),
_freq_corr(0),
_auto_gain(false),
_lna_gain(0),
_mix_gain(0),
_vga_gain(0),
_bandwidth(0)
{
int ret;
dict_t dict = params_to_dict(args);
{
boost::mutex::scoped_lock lock( _usage_mutex );
if ( _usage == 0 )
airspy_init(); /* call only once before the first open */
_usage++;
}
_dev = NULL;
ret = airspy_open( &_dev );
AIRSPY_THROW_ON_ERROR(ret, "Failed to open AirSpy device")
uint8_t board_id;
ret = airspy_board_id_read( _dev, &board_id );
AIRSPY_THROW_ON_ERROR(ret, "Failed to get AirSpy board id")
char version[40];
memset(version, 0, sizeof(version));
ret = airspy_version_string_read( _dev, version, sizeof(version));
AIRSPY_THROW_ON_ERROR(ret, "Failed to read version string")
#if 0
read_partid_serialno_t serial_number;
ret = airspy_board_partid_serialno_read( _dev, &serial_number );
AIRSPY_THROW_ON_ERROR(ret, "Failed to read serial number")
#endif
std::cerr << "Using " << airspy_board_id_name(airspy_board_id(board_id)) << " "
<< "with firmware " << version << " "
<< std::endl;
set_center_freq( (get_freq_range().start() + get_freq_range().stop()) / 2.0 );
set_sample_rate( get_sample_rates().start() );
set_bandwidth( 0 );
set_gain( 8 ); /* preset to a reasonable default (non-GRC use case) */
set_mix_gain( 5 ); /* preset to a reasonable default (non-GRC use case) */
set_if_gain( 0 ); /* preset to a reasonable default (non-GRC use case) */
_fifo = new boost::circular_buffer<gr_complex>(5000000);
if (!_fifo) {
throw std::runtime_error( std::string(__FUNCTION__) + " " +
"Failed to allocate a sample FIFO!" );
}
}
/*
* Our virtual destructor.
*/
airspy_source_c::~airspy_source_c ()
{
int ret;
if (_dev) {
if ( airspy_is_streaming( _dev ) == AIRSPY_TRUE )
{
ret = airspy_stop_rx( _dev );
AIRSPY_THROW_ON_ERROR(ret, "Failed to stop RX streaming")
}
ret = airspy_close( _dev );
AIRSPY_THROW_ON_ERROR(ret, "Failed to close AirSpy")
_dev = NULL;
{
boost::mutex::scoped_lock lock( _usage_mutex );
_usage--;
if ( _usage == 0 )
airspy_exit(); /* call only once after last close */
}
}
if (_fifo)
{
delete _fifo;
_fifo = NULL;
}
}
int airspy_source_c::_airspy_rx_callback(airspy_transfer *transfer)
{
airspy_source_c *obj = (airspy_source_c *)transfer->ctx;
return obj->airspy_rx_callback((float *)transfer->samples, transfer->sample_count);
}
int airspy_source_c::airspy_rx_callback(void *samples, int sample_count)
{
size_t i, n_avail, to_copy, num_samples = sample_count;
float *sample = (float *)samples;
_fifo_lock.lock();
n_avail = _fifo->capacity() - _fifo->size();
to_copy = (n_avail < num_samples ? n_avail : num_samples);
for (i = 0; i < to_copy; i++ )
{
/* Push sample to the fifo */
_fifo->push_back( gr_complex( *sample, *(sample+1) ) );
/* offset to the next I+Q sample */
sample += 2;
}
_fifo_lock.unlock();
/* We have made some new samples available to the consumer in work() */
if (to_copy) {
//std::cerr << "+" << std::flush;
_samp_avail.notify_one();
}
/* Indicate overrun, if neccesary */
if (to_copy < num_samples)
std::cerr << "O" << std::flush;
return 0; // TODO: return -1 on error/stop
}
bool airspy_source_c::start()
{
if ( ! _dev )
return false;
int ret = airspy_start_rx( _dev, _airspy_rx_callback, (void *)this );
if ( ret != AIRSPY_SUCCESS ) {
std::cerr << "Failed to start RX streaming (" << ret << ")" << std::endl;
return false;
}
return true;
}
bool airspy_source_c::stop()
{
if ( ! _dev )
return false;
int ret = airspy_stop_rx( _dev );
if ( ret != AIRSPY_SUCCESS ) {
std::cerr << "Failed to stop RX streaming (" << ret << ")" << std::endl;
return false;
}
return true;
}
int airspy_source_c::work( int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items )
{
gr_complex *out = (gr_complex *)output_items[0];
bool running = false;
if ( _dev )
running = (airspy_is_streaming( _dev ) == AIRSPY_TRUE);
if ( ! running )
return WORK_DONE;
boost::unique_lock<boost::mutex> lock(_fifo_lock);
/* Wait until we have the requested number of samples */
int n_samples_avail = _fifo->size();
while (n_samples_avail < noutput_items) {
_samp_avail.wait(lock);
n_samples_avail = _fifo->size();
}
for(int i = 0; i < noutput_items; ++i) {
out[i] = _fifo->at(0);
_fifo->pop_front();
}
//std::cerr << "-" << std::flush;
return noutput_items;
}
std::vector<std::string> airspy_source_c::get_devices()
{
std::vector<std::string> devices;
std::string label;
#if 0
for (unsigned int i = 0; i < 1 /* TODO: missing libairspy api */; i++) {
std::string args = "airspy=" + boost::lexical_cast< std::string >( i );
label.clear();
label = "AirSpy"; /* TODO: missing libairspy api */
boost::algorithm::trim(label);
args += ",label='" + label + "'";
devices.push_back( args );
}
#else
{
boost::mutex::scoped_lock lock( _usage_mutex );
if ( _usage == 0 )
airspy_init(); /* call only once before the first open */
_usage++;
}
int ret;
airspy_device *dev = NULL;
ret = airspy_open(&dev);
if ( AIRSPY_SUCCESS == ret )
{
std::string args = "airspy=0";
label = "AirSpy";
uint8_t board_id;
ret = airspy_board_id_read( dev, &board_id );
if ( AIRSPY_SUCCESS == ret )
{
label += std::string(" ") + airspy_board_id_name(airspy_board_id(board_id));
}
args += ",label='" + label + "'";
devices.push_back( args );
ret = airspy_close(dev);
}
{
boost::mutex::scoped_lock lock( _usage_mutex );
_usage--;
if ( _usage == 0 )
airspy_exit(); /* call only once after last close */
}
#endif
return devices;
}
size_t airspy_source_c::get_num_channels()
{
return 1;
}
osmosdr::meta_range_t airspy_source_c::get_sample_rates()
{
osmosdr::meta_range_t range;
range += osmosdr::range_t( 10e6 );
return range;
}
double airspy_source_c::set_sample_rate( double rate )
{
int ret = AIRSPY_SUCCESS;
if (_dev) {
// ret = airspy_set_sample_rate( _dev, rate );
if ( AIRSPY_SUCCESS == ret ) {
//_sample_rate = rate;
_sample_rate = get_sample_rates().start();
} else {
AIRSPY_THROW_ON_ERROR( ret, AIRSPY_FUNC_STR( "airspy_set_sample_rate", rate ) )
}
}
return get_sample_rate();
}
double airspy_source_c::get_sample_rate()
{
return _sample_rate;
}
osmosdr::freq_range_t airspy_source_c::get_freq_range( size_t chan )
{
osmosdr::freq_range_t range;
range += osmosdr::range_t( 24e6, 1766e6 );
return range;
}
double airspy_source_c::set_center_freq( double freq, size_t chan )
{
int ret;
#define APPLY_PPM_CORR(val, ppm) ((val) * (1.0 + (ppm) * 0.000001))
if (_dev) {
double corr_freq = APPLY_PPM_CORR( freq, _freq_corr );
ret = airspy_set_freq( _dev, uint64_t(corr_freq) );
if ( AIRSPY_SUCCESS == ret ) {
_center_freq = freq;
} else {
AIRSPY_THROW_ON_ERROR( ret, AIRSPY_FUNC_STR( "airspy_set_freq", corr_freq ) )
}
}
return get_center_freq( chan );
}
double airspy_source_c::get_center_freq( size_t chan )
{
return _center_freq;
}
double airspy_source_c::set_freq_corr( double ppm, size_t chan )
{
_freq_corr = ppm;
set_center_freq( _center_freq );
return get_freq_corr( chan );
}
double airspy_source_c::get_freq_corr( size_t chan )
{
return _freq_corr;
}
std::vector<std::string> airspy_source_c::get_gain_names( size_t chan )
{
std::vector< std::string > names;
names += "LNA";
names += "MIX";
names += "IF";
return names;
}
osmosdr::gain_range_t airspy_source_c::get_gain_range( size_t chan )
{
return get_gain_range( "LNA", chan );
}
osmosdr::gain_range_t airspy_source_c::get_gain_range( const std::string & name, size_t chan )
{
if ( "LNA" == name ) {
return osmosdr::gain_range_t( 0, 15, 1 );
}
if ( "MIX" == name ) {
return osmosdr::gain_range_t( 0, 15, 1 );
}
if ( "IF" == name ) {
return osmosdr::gain_range_t( 0, 15, 1 );
}
return osmosdr::gain_range_t();
}
bool airspy_source_c::set_gain_mode( bool automatic, size_t chan )
{
_auto_gain = automatic;
return get_gain_mode(chan);
}
bool airspy_source_c::get_gain_mode( size_t chan )
{
return _auto_gain;
}
double airspy_source_c::set_gain( double gain, size_t chan )
{
int ret = AIRSPY_SUCCESS;
osmosdr::gain_range_t gains = get_gain_range( "LNA", chan );
if (_dev) {
double clip_gain = gains.clip( gain, true );
uint8_t value = clip_gain;
ret = airspy_set_lna_gain( _dev, value );
if ( AIRSPY_SUCCESS == ret ) {
_lna_gain = clip_gain;
} else {
// AIRSPY_THROW_ON_ERROR( ret, AIRSPY_FUNC_STR( "airspy_set_lna_gain", value ) )
}
}
return _lna_gain;
}
double airspy_source_c::set_gain( double gain, const std::string & name, size_t chan)
{
if ( "LNA" == name ) {
return set_gain( gain, chan );
}
if ( "MIX" == name ) {
return set_mix_gain( gain, chan );
}
if ( "IF" == name ) {
return set_if_gain( gain, chan );
}
return set_gain( gain, chan );
}
double airspy_source_c::get_gain( size_t chan )
{
return _lna_gain;
}
double airspy_source_c::get_gain( const std::string & name, size_t chan )
{
if ( "LNA" == name ) {
return get_gain( chan );
}
if ( "MIX" == name ) {
return _mix_gain;
}
if ( "IF" == name ) {
return _vga_gain;
}
return get_gain( chan );
}
double airspy_source_c::set_mix_gain(double gain, size_t chan)
{
int ret;
osmosdr::gain_range_t gains = get_gain_range( "MIX", chan );
if (_dev) {
double clip_gain = gains.clip( gain, true );
uint8_t value = clip_gain;
ret = airspy_set_mixer_gain( _dev, value );
if ( AIRSPY_SUCCESS == ret ) {
_mix_gain = clip_gain;
} else {
// AIRSPY_THROW_ON_ERROR( ret, AIRSPY_FUNC_STR( "airspy_set_mixer_gain", value ) )
}
}
return _mix_gain;
}
double airspy_source_c::set_if_gain(double gain, size_t chan)
{
int ret;
osmosdr::gain_range_t gains = get_gain_range( "MIX", chan );
if (_dev) {
double clip_gain = gains.clip( gain, true );
uint8_t value = clip_gain;
ret = airspy_set_vga_gain( _dev, value );
if ( AIRSPY_SUCCESS == ret ) {
_vga_gain = clip_gain;
} else {
// AIRSPY_THROW_ON_ERROR( ret, AIRSPY_FUNC_STR( "airspy_set_vga_gain", value ) )
}
}
return _vga_gain;
}
std::vector< std::string > airspy_source_c::get_antennas( size_t chan )
{
std::vector< std::string > antennas;
antennas += get_antenna( chan );
return antennas;
}
std::string airspy_source_c::set_antenna( const std::string & antenna, size_t chan )
{
return get_antenna( chan );
}
std::string airspy_source_c::get_antenna( size_t chan )
{
return "RX";
}
double airspy_source_c::set_bandwidth( double bandwidth, size_t chan )
{
return get_bandwidth( chan );
}
double airspy_source_c::get_bandwidth( size_t chan )
{
return 10e6;
}
osmosdr::freq_range_t airspy_source_c::get_bandwidth_range( size_t chan )
{
osmosdr::freq_range_t bandwidths;
bandwidths += osmosdr::range_t( get_bandwidth( chan ) );
return bandwidths;
}

@ -0,0 +1,146 @@
/* -*- c++ -*- */
/*
* Copyright 2013 Dimitri Stolnikov <horiz0n@gmx.net>
*
* This file is part of GNU Radio
*
* GNU Radio 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, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_AIRSPY_SOURCE_C_H
#define INCLUDED_AIRSPY_SOURCE_C_H
#include <boost/circular_buffer.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/condition_variable.hpp>
#include <gnuradio/sync_block.h>
#include <libairspy/airspy.h>
#include "source_iface.h"
class airspy_source_c;
/*
* We use boost::shared_ptr's instead of raw pointers for all access
* to gr::blocks (and many other data structures). The shared_ptr gets
* us transparent reference counting, which greatly simplifies storage
* management issues. This is especially helpful in our hybrid
* C++ / Python system.
*
* See http://www.boost.org/libs/smart_ptr/smart_ptr.htm
*
* As a convention, the _sptr suffix indicates a boost::shared_ptr
*/
typedef boost::shared_ptr<airspy_source_c> airspy_source_c_sptr;
/*!
* \brief Return a shared_ptr to a new instance of airspy_source_c.
*
* To avoid accidental use of raw pointers, airspy_source_c's
* constructor is private. make_airspy_source_c is the public
* interface for creating new instances.
*/
airspy_source_c_sptr make_airspy_source_c (const std::string & args = "");
/*!
* \brief Provides a stream of complex samples.
* \ingroup block
*/
class airspy_source_c :
public gr::sync_block,
public source_iface
{
private:
// The friend declaration allows make_airspy_source_c to
// access the private constructor.
friend airspy_source_c_sptr make_airspy_source_c (const std::string & args);
/*!
* \brief Provides a stream of complex samples.
*/
airspy_source_c (const std::string & args); // private constructor
public:
~airspy_source_c (); // public destructor
bool start();
bool stop();
int work( int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items );
static std::vector< std::string > get_devices();
size_t get_num_channels( void );
osmosdr::meta_range_t get_sample_rates( void );
double set_sample_rate( double rate );
double get_sample_rate( void );
osmosdr::freq_range_t get_freq_range( size_t chan = 0 );
double set_center_freq( double freq, size_t chan = 0 );
double get_center_freq( size_t chan = 0 );
double set_freq_corr( double ppm, size_t chan = 0 );
double get_freq_corr( size_t chan = 0 );
std::vector<std::string> get_gain_names( size_t chan = 0 );
osmosdr::gain_range_t get_gain_range( size_t chan = 0 );
osmosdr::gain_range_t get_gain_range( const std::string & name, size_t chan = 0 );
bool set_gain_mode( bool automatic, size_t chan = 0 );
bool get_gain_mode( size_t chan = 0 );
double set_gain( double gain, size_t chan = 0 );
double set_gain( double gain, const std::string & name, size_t chan = 0 );
double get_gain( size_t chan = 0 );
double get_gain( const std::string & name, size_t chan = 0 );
double set_mix_gain(double gain, size_t chan = 0 );
double set_if_gain( double gain, size_t chan = 0 );
std::vector< std::string > get_antennas( size_t chan = 0 );
std::string set_antenna( const std::string & antenna, size_t chan = 0 );
std::string get_antenna( size_t chan = 0 );
double set_bandwidth( double bandwidth, size_t chan = 0 );
double get_bandwidth( size_t chan = 0 );
osmosdr::freq_range_t get_bandwidth_range( size_t chan = 0 );
private:
static int _airspy_rx_callback(airspy_transfer* transfer);
int airspy_rx_callback(void *samples, int sample_count);
static int _usage;
static boost::mutex _usage_mutex;
airspy_device *_dev;
boost::circular_buffer<gr_complex> *_fifo;
boost::mutex _fifo_lock;
boost::condition_variable _samp_avail;
double _sample_rate;
double _center_freq;
double _freq_corr;
bool _auto_gain;
double _lna_gain;
double _mix_gain;
double _vga_gain;
double _bandwidth;
};
#endif /* INCLUDED_AIRSPY_SOURCE_C_H */

@ -14,5 +14,6 @@
#cmakedefine ENABLE_HACKRF
#cmakedefine ENABLE_BLADERF
#cmakedefine ENABLE_RFSPACE
#cmakedefine ENABLE_AIRSPY
#endif // CONFIG_H_IN

@ -70,6 +70,10 @@
#include <rfspace_source_c.h>
#endif
#ifdef ENABLE_AIRSPY
#include <airspy_source_c.h>
#endif
#include "arg_helpers.h"
using namespace osmosdr;
@ -158,7 +162,10 @@ devices_t device::find(const device_t &hint)
BOOST_FOREACH( std::string dev, rfspace_source_c::get_devices( fake ) )
devices.push_back( device_t(dev) );
#endif
#ifdef ENABLE_AIRSPY
BOOST_FOREACH( std::string dev, airspy_source_c::get_devices() )
devices.push_back( device_t(dev) );
#endif
/* software-only sources should be appended at the very end,
* hopefully resulting in hardware sources to be shown first
* in a graphical interface etc... */

@ -72,6 +72,10 @@
#include <rfspace_source_c.h>
#endif
#ifdef ENABLE_AIRSPY
#include <airspy_source_c.h>
#endif
#include "arg_helpers.h"
#include "source_impl.h"
@ -134,6 +138,9 @@ source_impl::source_impl( const std::string &args )
#endif
#ifdef ENABLE_RFSPACE
dev_types.push_back("rfspace");
#endif
#ifdef ENABLE_AIRSPY
dev_types.push_back("airspy");
#endif
std::cerr << "gr-osmosdr "
<< GR_OSMOSDR_VERSION << " (" << GR_OSMOSDR_LIBVER << ") "
@ -194,6 +201,10 @@ source_impl::source_impl( const std::string &args )
BOOST_FOREACH( std::string dev, hackrf_source_c::get_devices() )
dev_list.push_back( dev );
#endif
#ifdef ENABLE_AIRSPY
BOOST_FOREACH( std::string dev, airspy_source_c::get_devices() )
dev_list.push_back( dev );
#endif
// std::cerr << std::endl;
// BOOST_FOREACH( std::string dev, dev_list )
@ -290,6 +301,13 @@ source_impl::source_impl( const std::string &args )
}
#endif
#ifdef ENABLE_AIRSPY
if ( dict.count("airspy") ) {
airspy_source_c_sptr src = make_airspy_source_c( arg );
block = src; iface = src.get();
}
#endif
if ( iface != NULL && long(block.get()) != 0 ) {
_devs.push_back( iface );

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