forked from sdr/gr-osmosdr
776 lines
20 KiB
C++
776 lines
20 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2013 Dimitri Stolnikov <horiz0n@gmx.net>
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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/*
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* config.h is generated by configure. It contains the results
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* of probing for features, options etc. It should be the first
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* file included in your .cc file.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdexcept>
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#include <iostream>
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#include <boost/assign.hpp>
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#include <boost/format.hpp>
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#include <boost/detail/endian.hpp>
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#include <boost/algorithm/string.hpp>
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#include <boost/thread/thread.hpp>
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#include <gnuradio/io_signature.h>
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#include "hackrf_source_c.h"
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#include "arg_helpers.h"
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using namespace boost::assign;
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#define BUF_LEN (16 * 32 * 512) /* must be multiple of 512 */
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#define BUF_NUM 15
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#define BYTES_PER_SAMPLE 2 /* HackRF device produces 8 bit unsigned IQ data */
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#define HACKRF_FORMAT_ERROR(ret, msg) \
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boost::str( boost::format(msg " (%1%) %2%") \
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% ret % hackrf_error_name((enum hackrf_error)ret) )
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#define HACKRF_THROW_ON_ERROR(ret, msg) \
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if ( ret != HACKRF_SUCCESS ) \
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{ \
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throw std::runtime_error( HACKRF_FORMAT_ERROR(ret, msg) ); \
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}
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#define HACKRF_FUNC_STR(func, arg) \
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boost::str(boost::format(func "(%1%)") % arg) + " has failed"
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int hackrf_source_c::_usage = 0;
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boost::mutex hackrf_source_c::_usage_mutex;
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hackrf_source_c_sptr make_hackrf_source_c (const std::string & args)
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{
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return gnuradio::get_initial_sptr(new hackrf_source_c (args));
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}
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/*
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* Specify constraints on number of input and output streams.
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* This info is used to construct the input and output signatures
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* (2nd & 3rd args to gr::block's constructor). The input and
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* output signatures are used by the runtime system to
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* check that a valid number and type of inputs and outputs
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* are connected to this block. In this case, we accept
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* only 0 input and 1 output.
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*/
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static const int MIN_IN = 0; // mininum number of input streams
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static const int MAX_IN = 0; // maximum number of input streams
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static const int MIN_OUT = 1; // minimum number of output streams
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static const int MAX_OUT = 1; // maximum number of output streams
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/*
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* The private constructor
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*/
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hackrf_source_c::hackrf_source_c (const std::string &args)
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: gr::sync_block ("hackrf_source_c",
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gr::io_signature::make(MIN_IN, MAX_IN, sizeof (gr_complex)),
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gr::io_signature::make(MIN_OUT, MAX_OUT, sizeof (gr_complex))),
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_dev(NULL),
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_buf(NULL),
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_sample_rate(0),
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_center_freq(0),
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_freq_corr(0),
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_auto_gain(false),
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_amp_gain(0),
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_lna_gain(0),
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_vga_gain(0),
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_bandwidth(0)
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{
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int ret;
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std::string hackrf_serial;
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dict_t dict = params_to_dict(args);
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_buf_num = _buf_len = _buf_head = _buf_used = _buf_offset = 0;
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if (dict.count("buffers"))
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_buf_num = boost::lexical_cast< unsigned int >( dict["buffers"] );
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// if (dict.count("buflen"))
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// _buf_len = boost::lexical_cast< unsigned int >( dict["buflen"] );
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if (0 == _buf_num)
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_buf_num = BUF_NUM;
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if (0 == _buf_len || _buf_len % 512 != 0) /* len must be multiple of 512 */
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_buf_len = BUF_LEN;
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_samp_avail = _buf_len / BYTES_PER_SAMPLE;
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// create a lookup table for gr_complex values
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for (unsigned int i = 0; i <= 0xffff; i++) {
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#ifdef BOOST_LITTLE_ENDIAN
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_lut.push_back( gr_complex( (float(int8_t(i & 0xff))) * (1.0f/128.0f),
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(float(int8_t(i >> 8))) * (1.0f/128.0f) ) );
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#else // BOOST_BIG_ENDIAN
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_lut.push_back( gr_complex( (float(int8_t(i >> 8))) * (1.0f/128.0f),
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(float(int8_t(i & 0xff))) * (1.0f/128.0f) ) );
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#endif
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}
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{
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boost::mutex::scoped_lock lock( _usage_mutex );
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if ( _usage == 0 )
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hackrf_init(); /* call only once before the first open */
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_usage++;
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}
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_dev = NULL;
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#ifdef LIBHACKRF_HAVE_DEVICE_LIST
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if (dict.count("hackrf") && dict["hackrf"].length() > 0) {
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hackrf_serial = dict["hackrf"];
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if (hackrf_serial.length() > 1) {
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ret = hackrf_open_by_serial( hackrf_serial.c_str(), &_dev );
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} else {
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int dev_index = 0;
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try {
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dev_index = boost::lexical_cast< int >( hackrf_serial );
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} catch ( std::exception &ex ) {
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throw std::runtime_error(
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"Failed to use '" + hackrf_serial + "' as HackRF device index number: " + ex.what());
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}
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hackrf_device_list_t *list = hackrf_device_list();
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if (dev_index < list->devicecount) {
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ret = hackrf_device_list_open(list, dev_index, &_dev);
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} else {
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hackrf_device_list_free(list);
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throw std::runtime_error(
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"Failed to use '" + hackrf_serial + "' as HackRF device index: not enough devices");
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}
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hackrf_device_list_free(list);
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}
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} else
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#endif
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ret = hackrf_open( &_dev );
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HACKRF_THROW_ON_ERROR(ret, "Failed to open HackRF device")
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uint8_t board_id;
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ret = hackrf_board_id_read( _dev, &board_id );
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HACKRF_THROW_ON_ERROR(ret, "Failed to get HackRF board id")
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char version[40];
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memset(version, 0, sizeof(version));
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ret = hackrf_version_string_read( _dev, version, sizeof(version));
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HACKRF_THROW_ON_ERROR(ret, "Failed to read version string")
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#if 0
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read_partid_serialno_t serial_number;
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ret = hackrf_board_partid_serialno_read( _dev, &serial_number );
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HACKRF_THROW_ON_ERROR(ret, "Failed to read serial number")
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#endif
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std::cerr << "Using " << hackrf_board_id_name(hackrf_board_id(board_id)) << " "
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<< "with firmware " << version << " "
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<< std::endl;
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if ( BUF_NUM != _buf_num || BUF_LEN != _buf_len ) {
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std::cerr << "Using " << _buf_num << " buffers of size " << _buf_len << "."
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<< std::endl;
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}
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set_center_freq( (get_freq_range().start() + get_freq_range().stop()) / 2.0 );
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set_sample_rate( get_sample_rates().start() );
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set_bandwidth( 0 );
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set_gain( 0 ); /* disable AMP gain stage by default to protect full sprectrum pre-amp from physical damage */
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set_if_gain( 16 ); /* preset to a reasonable default (non-GRC use case) */
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set_bb_gain( 20 ); /* preset to a reasonable default (non-GRC use case) */
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// Check device args to find out if bias/phantom power is desired.
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if ( dict.count("bias") ) {
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bool bias = boost::lexical_cast<bool>( dict["bias"] );
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ret = hackrf_set_antenna_enable(_dev, static_cast<uint8_t>(bias));
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if ( ret != HACKRF_SUCCESS )
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{
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std::cerr << "Failed to apply antenna bias voltage state: " << bias << HACKRF_FORMAT_ERROR(ret, "") << std::endl;
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}
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else
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{
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std::cerr << (bias ? "Enabled" : "Disabled") << " antenna bias voltage" << std::endl;
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}
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}
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_buf = (unsigned short **) malloc(_buf_num * sizeof(unsigned short *));
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if (_buf) {
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for(unsigned int i = 0; i < _buf_num; ++i)
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_buf[i] = (unsigned short *) malloc(_buf_len);
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}
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// _thread = gr::thread::thread(_hackrf_wait, this);
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ret = hackrf_start_rx( _dev, _hackrf_rx_callback, (void *)this );
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HACKRF_THROW_ON_ERROR(ret, "Failed to start RX streaming")
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}
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/*
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* Our virtual destructor.
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*/
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hackrf_source_c::~hackrf_source_c ()
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{
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if (_dev) {
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// _thread.join();
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int ret = hackrf_stop_rx( _dev );
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if ( ret != HACKRF_SUCCESS )
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{
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std::cerr << HACKRF_FORMAT_ERROR(ret, "Failed to stop RX streaming") << std::endl;
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}
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ret = hackrf_close( _dev );
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if ( ret != HACKRF_SUCCESS )
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{
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std::cerr << HACKRF_FORMAT_ERROR(ret, "Failed to close HackRF") << std::endl;
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}
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_dev = NULL;
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{
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boost::mutex::scoped_lock lock( _usage_mutex );
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_usage--;
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if ( _usage == 0 )
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hackrf_exit(); /* call only once after last close */
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}
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}
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if (_buf) {
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for(unsigned int i = 0; i < _buf_num; ++i) {
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free(_buf[i]);
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}
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free(_buf);
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_buf = NULL;
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}
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}
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int hackrf_source_c::_hackrf_rx_callback(hackrf_transfer *transfer)
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{
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hackrf_source_c *obj = (hackrf_source_c *)transfer->rx_ctx;
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return obj->hackrf_rx_callback(transfer->buffer, transfer->valid_length);
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}
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int hackrf_source_c::hackrf_rx_callback(unsigned char *buf, uint32_t len)
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{
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{
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boost::mutex::scoped_lock lock( _buf_mutex );
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int buf_tail = (_buf_head + _buf_used) % _buf_num;
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memcpy(_buf[buf_tail], buf, len);
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if (_buf_used == _buf_num) {
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std::cerr << "O" << std::flush;
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_buf_head = (_buf_head + 1) % _buf_num;
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} else {
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_buf_used++;
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}
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}
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_buf_cond.notify_one();
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return 0; // TODO: return -1 on error/stop
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}
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void hackrf_source_c::_hackrf_wait(hackrf_source_c *obj)
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{
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obj->hackrf_wait();
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}
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void hackrf_source_c::hackrf_wait()
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{
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}
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bool hackrf_source_c::start()
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{
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if ( ! _dev )
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return false;
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#if 0
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int ret = hackrf_start_rx( _dev, _hackrf_rx_callback, (void *)this );
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if ( ret != HACKRF_SUCCESS ) {
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std::cerr << "Failed to start RX streaming (" << ret << ")" << std::endl;
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return false;
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}
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#endif
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return true;
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}
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bool hackrf_source_c::stop()
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{
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if ( ! _dev )
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return false;
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#if 0
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int ret = hackrf_stop_rx( _dev );
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if ( ret != HACKRF_SUCCESS ) {
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std::cerr << "Failed to stop RX streaming (" << ret << ")" << std::endl;
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return false;
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}
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#endif
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return true;
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}
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int hackrf_source_c::work( int noutput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items )
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{
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gr_complex *out = (gr_complex *)output_items[0];
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bool running = false;
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if ( _dev )
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running = (hackrf_is_streaming( _dev ) == HACKRF_TRUE);
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{
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boost::mutex::scoped_lock lock( _buf_mutex );
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while (_buf_used < 3 && running) // collect at least 3 buffers
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_buf_cond.wait( lock );
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}
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if ( ! running )
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return WORK_DONE;
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unsigned short *buf = _buf[_buf_head] + _buf_offset;
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if (noutput_items <= _samp_avail) {
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for (int i = 0; i < noutput_items; ++i)
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*out++ = _lut[ *(buf + i) ];
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_buf_offset += noutput_items;
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_samp_avail -= noutput_items;
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} else {
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for (int i = 0; i < _samp_avail; ++i)
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*out++ = _lut[ *(buf + i) ];
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{
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boost::mutex::scoped_lock lock( _buf_mutex );
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_buf_head = (_buf_head + 1) % _buf_num;
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_buf_used--;
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}
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buf = _buf[_buf_head];
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int remaining = noutput_items - _samp_avail;
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for (int i = 0; i < remaining; ++i)
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*out++ = _lut[ *(buf + i) ];
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_buf_offset = remaining;
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_samp_avail = (_buf_len / BYTES_PER_SAMPLE) - remaining;
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}
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return noutput_items;
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}
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std::vector<std::string> hackrf_source_c::get_devices()
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{
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std::vector<std::string> devices;
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std::string label;
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{
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boost::mutex::scoped_lock lock( _usage_mutex );
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if ( _usage == 0 )
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hackrf_init(); /* call only once before the first open */
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_usage++;
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}
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#ifdef LIBHACKRF_HAVE_DEVICE_LIST
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hackrf_device_list_t *list = hackrf_device_list();
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for (int i = 0; i < list->devicecount; i++) {
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label = "HackRF ";
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label += hackrf_usb_board_id_name( list->usb_board_ids[i] );
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std::string args;
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if (list->serial_numbers[i]) {
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std::string serial = boost::lexical_cast< std::string >( list->serial_numbers[i] );
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if (serial.length() > 6)
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serial = serial.substr(serial.length() - 6, 6);
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args = "hackrf=" + serial;
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label += " " + serial;
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} else
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args = "hackrf"; /* will pick the first one, serial number is required for choosing a specific one */
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boost::algorithm::trim(label);
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args += ",label='" + label + "'";
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devices.push_back( args );
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}
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hackrf_device_list_free(list);
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#else
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int ret;
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hackrf_device *dev = NULL;
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ret = hackrf_open(&dev);
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if ( HACKRF_SUCCESS == ret )
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{
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std::string args = "hackrf=0";
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label = "HackRF";
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uint8_t board_id;
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ret = hackrf_board_id_read( dev, &board_id );
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if ( HACKRF_SUCCESS == ret )
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{
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label += std::string(" ") + hackrf_board_id_name(hackrf_board_id(board_id));
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}
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args += ",label='" + label + "'";
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devices.push_back( args );
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ret = hackrf_close(dev);
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}
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#endif
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{
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boost::mutex::scoped_lock lock( _usage_mutex );
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_usage--;
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if ( _usage == 0 )
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hackrf_exit(); /* call only once after last close */
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}
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return devices;
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}
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size_t hackrf_source_c::get_num_channels()
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{
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return 1;
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}
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osmosdr::meta_range_t hackrf_source_c::get_sample_rates()
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{
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osmosdr::meta_range_t range;
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/* we only add integer rates here because of better phase noise performance.
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* the user is allowed to request arbitrary (fractional) rates within these
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* boundaries. */
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range += osmosdr::range_t( 8e6 );
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range += osmosdr::range_t( 10e6 );
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range += osmosdr::range_t( 12.5e6 );
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range += osmosdr::range_t( 16e6 );
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range += osmosdr::range_t( 20e6 ); /* confirmed to work on fast machines */
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return range;
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}
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double hackrf_source_c::set_sample_rate( double rate )
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{
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int ret;
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if (_dev) {
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ret = hackrf_set_sample_rate( _dev, rate );
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if ( HACKRF_SUCCESS == ret ) {
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_sample_rate = rate;
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//set_bandwidth( 0.0 ); /* bandwidth of 0 means automatic filter selection */
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} else {
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HACKRF_THROW_ON_ERROR( ret, HACKRF_FUNC_STR( "hackrf_set_sample_rate", rate ) )
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}
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}
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return get_sample_rate();
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}
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double hackrf_source_c::get_sample_rate()
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{
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return _sample_rate;
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}
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osmosdr::freq_range_t hackrf_source_c::get_freq_range( size_t chan )
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{
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osmosdr::freq_range_t range;
|
|
|
|
range += osmosdr::range_t( _sample_rate / 2, 7250e6 - _sample_rate / 2 );
|
|
|
|
return range;
|
|
}
|
|
|
|
double hackrf_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 = hackrf_set_freq( _dev, uint64_t(corr_freq) );
|
|
if ( HACKRF_SUCCESS == ret ) {
|
|
_center_freq = freq;
|
|
} else {
|
|
HACKRF_THROW_ON_ERROR( ret, HACKRF_FUNC_STR( "hackrf_set_freq", corr_freq ) )
|
|
}
|
|
}
|
|
|
|
return get_center_freq( chan );
|
|
}
|
|
|
|
double hackrf_source_c::get_center_freq( size_t chan )
|
|
{
|
|
return _center_freq;
|
|
}
|
|
|
|
double hackrf_source_c::set_freq_corr( double ppm, size_t chan )
|
|
{
|
|
_freq_corr = ppm;
|
|
|
|
set_center_freq( _center_freq );
|
|
|
|
return get_freq_corr( chan );
|
|
}
|
|
|
|
double hackrf_source_c::get_freq_corr( size_t chan )
|
|
{
|
|
return _freq_corr;
|
|
}
|
|
|
|
std::vector<std::string> hackrf_source_c::get_gain_names( size_t chan )
|
|
{
|
|
std::vector< std::string > names;
|
|
|
|
names += "RF";
|
|
names += "IF";
|
|
names += "BB";
|
|
|
|
return names;
|
|
}
|
|
|
|
osmosdr::gain_range_t hackrf_source_c::get_gain_range( size_t chan )
|
|
{
|
|
return get_gain_range( "RF", chan );
|
|
}
|
|
|
|
osmosdr::gain_range_t hackrf_source_c::get_gain_range( const std::string & name, size_t chan )
|
|
{
|
|
if ( "RF" == name ) {
|
|
return osmosdr::gain_range_t( 0, 14, 14 );
|
|
}
|
|
|
|
if ( "IF" == name ) {
|
|
return osmosdr::gain_range_t( 0, 40, 8 );
|
|
}
|
|
|
|
if ( "BB" == name ) {
|
|
return osmosdr::gain_range_t( 0, 62, 2 );
|
|
}
|
|
|
|
return osmosdr::gain_range_t();
|
|
}
|
|
|
|
bool hackrf_source_c::set_gain_mode( bool automatic, size_t chan )
|
|
{
|
|
_auto_gain = automatic;
|
|
|
|
return get_gain_mode(chan);
|
|
}
|
|
|
|
bool hackrf_source_c::get_gain_mode( size_t chan )
|
|
{
|
|
return _auto_gain;
|
|
}
|
|
|
|
double hackrf_source_c::set_gain( double gain, size_t chan )
|
|
{
|
|
int ret;
|
|
osmosdr::gain_range_t rf_gains = get_gain_range( "RF", chan );
|
|
|
|
if (_dev) {
|
|
double clip_gain = rf_gains.clip( gain, true );
|
|
uint8_t value = clip_gain == 14.0f ? 1 : 0;
|
|
|
|
ret = hackrf_set_amp_enable( _dev, value );
|
|
if ( HACKRF_SUCCESS == ret ) {
|
|
_amp_gain = clip_gain;
|
|
} else {
|
|
HACKRF_THROW_ON_ERROR( ret, HACKRF_FUNC_STR( "hackrf_set_amp_enable", value ) )
|
|
}
|
|
}
|
|
|
|
return _amp_gain;
|
|
}
|
|
|
|
double hackrf_source_c::set_gain( double gain, const std::string & name, size_t chan)
|
|
{
|
|
if ( "RF" == name ) {
|
|
return set_gain( gain, chan );
|
|
}
|
|
|
|
if ( "IF" == name ) {
|
|
return set_if_gain( gain, chan );
|
|
}
|
|
|
|
if ( "BB" == name ) {
|
|
return set_bb_gain( gain, chan );
|
|
}
|
|
|
|
return set_gain( gain, chan );
|
|
}
|
|
|
|
double hackrf_source_c::get_gain( size_t chan )
|
|
{
|
|
return _amp_gain;
|
|
}
|
|
|
|
double hackrf_source_c::get_gain( const std::string & name, size_t chan )
|
|
{
|
|
if ( "RF" == name ) {
|
|
return get_gain( chan );
|
|
}
|
|
|
|
if ( "IF" == name ) {
|
|
return _lna_gain;
|
|
}
|
|
|
|
if ( "BB" == name ) {
|
|
return _vga_gain;
|
|
}
|
|
|
|
return get_gain( chan );
|
|
}
|
|
|
|
double hackrf_source_c::set_if_gain(double gain, size_t chan)
|
|
{
|
|
int ret;
|
|
osmosdr::gain_range_t rf_gains = get_gain_range( "IF", chan );
|
|
|
|
if (_dev) {
|
|
double clip_gain = rf_gains.clip( gain, true );
|
|
|
|
ret = hackrf_set_lna_gain( _dev, uint32_t(clip_gain) );
|
|
if ( HACKRF_SUCCESS == ret ) {
|
|
_lna_gain = clip_gain;
|
|
} else {
|
|
HACKRF_THROW_ON_ERROR( ret, HACKRF_FUNC_STR( "hackrf_set_lna_gain", clip_gain ) )
|
|
}
|
|
}
|
|
|
|
return _lna_gain;
|
|
}
|
|
|
|
double hackrf_source_c::set_bb_gain( double gain, size_t chan )
|
|
{
|
|
int ret;
|
|
osmosdr::gain_range_t if_gains = get_gain_range( "BB", chan );
|
|
|
|
if (_dev) {
|
|
double clip_gain = if_gains.clip( gain, true );
|
|
|
|
ret = hackrf_set_vga_gain( _dev, uint32_t(clip_gain) );
|
|
if ( HACKRF_SUCCESS == ret ) {
|
|
_vga_gain = clip_gain;
|
|
} else {
|
|
HACKRF_THROW_ON_ERROR( ret, HACKRF_FUNC_STR( "hackrf_set_vga_gain", clip_gain ) )
|
|
}
|
|
}
|
|
|
|
return _vga_gain;
|
|
}
|
|
|
|
std::vector< std::string > hackrf_source_c::get_antennas( size_t chan )
|
|
{
|
|
std::vector< std::string > antennas;
|
|
|
|
antennas += get_antenna( chan );
|
|
|
|
return antennas;
|
|
}
|
|
|
|
std::string hackrf_source_c::set_antenna( const std::string & antenna, size_t chan )
|
|
{
|
|
return get_antenna( chan );
|
|
}
|
|
|
|
std::string hackrf_source_c::get_antenna( size_t chan )
|
|
{
|
|
return "TX/RX";
|
|
}
|
|
|
|
double hackrf_source_c::set_bandwidth( double bandwidth, size_t chan )
|
|
{
|
|
int ret;
|
|
// osmosdr::freq_range_t bandwidths = get_bandwidth_range( chan );
|
|
|
|
if ( bandwidth == 0.0 ) /* bandwidth of 0 means automatic filter selection */
|
|
bandwidth = _sample_rate * 0.75; /* select narrower filters to prevent aliasing */
|
|
|
|
if ( _dev ) {
|
|
/* compute best default value depending on sample rate (auto filter) */
|
|
uint32_t bw = hackrf_compute_baseband_filter_bw( uint32_t(bandwidth) );
|
|
ret = hackrf_set_baseband_filter_bandwidth( _dev, bw );
|
|
if ( HACKRF_SUCCESS == ret ) {
|
|
_bandwidth = bw;
|
|
} else {
|
|
HACKRF_THROW_ON_ERROR( ret, HACKRF_FUNC_STR( "hackrf_set_baseband_filter_bandwidth", bw ) )
|
|
}
|
|
}
|
|
|
|
return _bandwidth;
|
|
}
|
|
|
|
double hackrf_source_c::get_bandwidth( size_t chan )
|
|
{
|
|
return _bandwidth;
|
|
}
|
|
|
|
osmosdr::freq_range_t hackrf_source_c::get_bandwidth_range( size_t chan )
|
|
{
|
|
osmosdr::freq_range_t bandwidths;
|
|
|
|
// TODO: read out from libhackrf when an API is available
|
|
|
|
bandwidths += osmosdr::range_t( 1750000 );
|
|
bandwidths += osmosdr::range_t( 2500000 );
|
|
bandwidths += osmosdr::range_t( 3500000 );
|
|
bandwidths += osmosdr::range_t( 5000000 );
|
|
bandwidths += osmosdr::range_t( 5500000 );
|
|
bandwidths += osmosdr::range_t( 6000000 );
|
|
bandwidths += osmosdr::range_t( 7000000 );
|
|
bandwidths += osmosdr::range_t( 8000000 );
|
|
bandwidths += osmosdr::range_t( 9000000 );
|
|
bandwidths += osmosdr::range_t( 10000000 );
|
|
bandwidths += osmosdr::range_t( 12000000 );
|
|
bandwidths += osmosdr::range_t( 14000000 );
|
|
bandwidths += osmosdr::range_t( 15000000 );
|
|
bandwidths += osmosdr::range_t( 20000000 );
|
|
bandwidths += osmosdr::range_t( 24000000 );
|
|
bandwidths += osmosdr::range_t( 28000000 );
|
|
|
|
return bandwidths;
|
|
}
|