From 154c4ddd5f7726730c606feaea7272310a535007 Mon Sep 17 00:00:00 2001 From: Dimitri Stolnikov Date: Sat, 4 Jan 2014 21:15:44 +0100 Subject: [PATCH] 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. --- CMakeLists.txt | 1 + README | 1 + cmake/Modules/FindLibAIRSPY.cmake | 24 ++ grc/gen_osmosdr_blocks.py | 2 + lib/CMakeLists.txt | 8 + lib/airspy/CMakeLists.txt | 37 ++ lib/airspy/airspy_source_c.cc | 609 ++++++++++++++++++++++++++++++ lib/airspy/airspy_source_c.h | 146 +++++++ lib/config.h.in | 1 + lib/device.cc | 9 +- lib/source_impl.cc | 18 + 11 files changed, 855 insertions(+), 1 deletion(-) create mode 100644 cmake/Modules/FindLibAIRSPY.cmake create mode 100644 lib/airspy/CMakeLists.txt create mode 100644 lib/airspy/airspy_source_c.cc create mode 100644 lib/airspy/airspy_source_c.h diff --git a/CMakeLists.txt b/CMakeLists.txt index a64b812..d580222 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -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) diff --git a/README b/README index 79c9d5c..d4efdf5 100644 --- a/README +++ b/README @@ -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 diff --git a/cmake/Modules/FindLibAIRSPY.cmake b/cmake/Modules/FindLibAIRSPY.cmake new file mode 100644 index 0000000..221edcc --- /dev/null +++ b/cmake/Modules/FindLibAIRSPY.cmake @@ -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) diff --git a/grc/gen_osmosdr_blocks.py b/grc/gen_osmosdr_blocks.py index 26141cc..fb963dc 100644 --- a/grc/gen_osmosdr_blocks.py +++ b/grc/gen_osmosdr_blocks.py @@ -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'] diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt index 1873694..cee66bf 100644 --- a/lib/CMakeLists.txt +++ b/lib/CMakeLists.txt @@ -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 ######################################################################## diff --git a/lib/airspy/CMakeLists.txt b/lib/airspy/CMakeLists.txt new file mode 100644 index 0000000..3e34aa6 --- /dev/null +++ b/lib/airspy/CMakeLists.txt @@ -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}) diff --git a/lib/airspy/airspy_source_c.cc b/lib/airspy/airspy_source_c.cc new file mode 100644 index 0000000..fdab994 --- /dev/null +++ b/lib/airspy/airspy_source_c.cc @@ -0,0 +1,609 @@ +/* -*- c++ -*- */ +/* + * Copyright 2013 Dimitri Stolnikov + * + * 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 +#include + +#include +#include +#include +#include +#include + +#include + +#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(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 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 airspy_source_c::get_devices() +{ + std::vector 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 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; +} diff --git a/lib/airspy/airspy_source_c.h b/lib/airspy/airspy_source_c.h new file mode 100644 index 0000000..9876c89 --- /dev/null +++ b/lib/airspy/airspy_source_c.h @@ -0,0 +1,146 @@ +/* -*- c++ -*- */ +/* + * Copyright 2013 Dimitri Stolnikov + * + * 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 +#include +#include + +#include + +#include + +#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_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 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 *_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 */ diff --git a/lib/config.h.in b/lib/config.h.in index c0b8800..fe9c2bf 100644 --- a/lib/config.h.in +++ b/lib/config.h.in @@ -14,5 +14,6 @@ #cmakedefine ENABLE_HACKRF #cmakedefine ENABLE_BLADERF #cmakedefine ENABLE_RFSPACE +#cmakedefine ENABLE_AIRSPY #endif // CONFIG_H_IN diff --git a/lib/device.cc b/lib/device.cc index d943ce6..e27daf6 100644 --- a/lib/device.cc +++ b/lib/device.cc @@ -70,6 +70,10 @@ #include #endif +#ifdef ENABLE_AIRSPY +#include +#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... */ diff --git a/lib/source_impl.cc b/lib/source_impl.cc index 055657f..5584d01 100644 --- a/lib/source_impl.cc +++ b/lib/source_impl.cc @@ -72,6 +72,10 @@ #include #endif +#ifdef ENABLE_AIRSPY +#include +#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 );