forked from sdr/gr-osmosdr
441 lines
12 KiB
C++
441 lines
12 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2013-2017 Nuand LLC
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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 <iostream>
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#include <boost/assign.hpp>
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#include <boost/format.hpp>
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#include <boost/lexical_cast.hpp>
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#include <gnuradio/io_signature.h>
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#include <volk/volk.h>
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#include "arg_helpers.h"
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#include "bladerf_source_c.h"
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#include "osmosdr/source.h"
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using namespace boost::assign;
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/*
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* Create a new instance of bladerf_source_c and return
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* a boost shared_ptr. This is effectively the public constructor.
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*/
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bladerf_source_c_sptr make_bladerf_source_c(const std::string &args)
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{
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return gnuradio::get_initial_sptr(new bladerf_source_c(args));
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}
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/*
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* The private constructor
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*/
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bladerf_source_c::bladerf_source_c(const std::string &args)
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:gr::sync_block("bladerf_source_c",
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gr::io_signature::make(0, 0, 0),
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args_to_io_signature(args))
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{
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int status;
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std::string device_name;
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struct bladerf_version fpga_version;
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dict_t dict = params_to_dict(args);
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init(dict, BLADERF_RX);
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if (dict.count("sampling")) {
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std::string sampling = dict["sampling"];
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std::cerr << _pfx
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<< "Setting bladerf sampling to " << sampling
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<< std::endl;
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if (sampling == "internal") {
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status = bladerf_set_sampling(_dev.get(), BLADERF_SAMPLING_INTERNAL);
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if (status != 0) {
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std::cerr << _pfx
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<< "Problem while setting sampling mode: "
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<< bladerf_strerror(status)
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<< std::endl;
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}
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} else if (sampling == "external") {
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status = bladerf_set_sampling(_dev.get(), BLADERF_SAMPLING_EXTERNAL);
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if (status != 0) {
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std::cerr << _pfx
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<< "Problem while setting sampling mode: "
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<< bladerf_strerror(status)
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<< std::endl;
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}
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} else {
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std::cerr << _pfx << "Invalid sampling mode " << sampling << std::endl;
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}
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}
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/* Warn user about using an old FPGA version, as we no longer strip off the
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* markers that were pressent in the pre-v0.0.1 FPGA */
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if (bladerf_fpga_version(_dev.get(), &fpga_version) != 0) {
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std::cerr << _pfx << "Failed to get FPGA version" << std::endl;
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} else if (fpga_version.major <= 0 &&
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fpga_version.minor <= 0 && fpga_version.patch < 1) {
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std::cerr << _pfx
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<< "Warning: FPGA version v0.0.1 or later is required. Using an "
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<< "earlier FPGA version will result in misinterpeted samples."
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<< std::endl;
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}
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/* Bounds-checking output signature depending on our underlying hardware */
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size_t max_nchan = 1;
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if (get_board_type(_dev.get()) == BLADERF_REV_2) {
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max_nchan = 2;
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}
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if (get_num_channels() > max_nchan) {
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std::cerr << _pfx
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<< "Warning: number of channels specified on command line ("
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<< get_num_channels() << ") is greater than the maximum number "
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<< "supported by this device (" << max_nchan << "). Resetting "
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<< "to " << max_nchan << "."
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<< std::endl;
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set_output_signature( gr::io_signature::make(max_nchan, max_nchan, sizeof(gr_complex) ) );
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}
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_use_mimo = get_num_channels() > 1;
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}
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bool bladerf_source_c::start()
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{
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return bladerf_common::start(BLADERF_RX);
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}
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bool bladerf_source_c::stop()
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{
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return bladerf_common::stop(BLADERF_RX);
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}
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int bladerf_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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const float scaling = 2048.0f;
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int status;
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gr_complex *out = static_cast<gr_complex *>(output_items[0]);
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struct bladerf_metadata meta;
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struct bladerf_metadata *meta_ptr = NULL;
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if (noutput_items > _conv_buf_size) {
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void *tmp;
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_conv_buf_size = noutput_items;
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tmp = realloc(_conv_buf, _conv_buf_size * 2 * sizeof(int16_t));
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if (tmp == NULL) {
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throw std::runtime_error(_pfx + "Failed to realloc _conv_buf");
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}
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_conv_buf = static_cast<int16_t *>(tmp);
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}
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if (_use_metadata) {
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memset(&meta, 0, sizeof(meta));
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meta.flags = BLADERF_META_FLAG_RX_NOW;
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meta_ptr = &meta;
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}
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/* Grab all the samples into the temporary buffer */
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status = bladerf_sync_rx(_dev.get(), static_cast<void *>(_conv_buf),
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noutput_items, meta_ptr, _stream_timeout_ms);
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if (status != 0) {
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std::cerr << _pfx
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<< "bladerf_sync_rx error: " << bladerf_strerror(status)
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<< std::endl;
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_consecutive_failures++;
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if (_consecutive_failures >= MAX_CONSECUTIVE_FAILURES) {
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std::cerr << _pfx
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<< "Consecutive error limit hit. Shutting down."
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<< std::endl;
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return WORK_DONE;
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}
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} else {
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_consecutive_failures = 0;
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}
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/* Convert them from fixed to floating point */
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volk_16i_s32f_convert_32f((float *) out, _conv_buf, scaling,
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2 * noutput_items);
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return noutput_items;
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}
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std::vector < std::string > bladerf_source_c::get_devices()
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{
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return bladerf_common::devices();
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}
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size_t bladerf_source_c::get_num_channels()
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{
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return output_signature()->max_streams();
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}
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osmosdr::meta_range_t bladerf_source_c::get_sample_rates()
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{
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return sample_rates();
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}
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double bladerf_source_c::set_sample_rate(double rate)
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{
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return bladerf_common::set_sample_rate(BLADERF_RX, rate);
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}
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double bladerf_source_c::get_sample_rate()
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{
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return bladerf_common::get_sample_rate(BLADERF_RX);
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}
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osmosdr::freq_range_t bladerf_source_c::get_freq_range(size_t chan)
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{
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return bladerf_common::get_freq_range(BLADERF_CHANNEL_RX(chan));
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}
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double bladerf_source_c::set_center_freq(double freq, size_t chan)
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{
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return bladerf_common::set_center_freq(freq, BLADERF_CHANNEL_RX(chan));
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}
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double bladerf_source_c::get_center_freq(size_t chan)
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{
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return bladerf_common::get_center_freq(BLADERF_CHANNEL_RX(chan));
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}
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double bladerf_source_c::set_freq_corr(double ppm, size_t chan)
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{
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/* TODO: Write the VCTCXO with a correction value (also changes TX ppm value!) */
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return get_freq_corr(BLADERF_CHANNEL_RX(chan));
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}
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double bladerf_source_c::get_freq_corr(size_t chan)
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{
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/* TODO: Return back the frequency correction in ppm */
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return 0;
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}
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std::vector < std::string > bladerf_source_c::get_gain_names(size_t chan)
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{
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return bladerf_common::get_gain_names(BLADERF_CHANNEL_RX(chan));
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}
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osmosdr::gain_range_t bladerf_source_c::get_gain_range(size_t chan)
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{
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return bladerf_common::get_gain_range(BLADERF_CHANNEL_RX(chan));
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}
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osmosdr::gain_range_t bladerf_source_c::get_gain_range(const std::string &name,
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size_t chan)
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{
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return bladerf_common::get_gain_range(name, BLADERF_CHANNEL_RX(chan));
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}
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bool bladerf_source_c::set_gain_mode(bool automatic, size_t chan)
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{
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return bladerf_common::set_gain_mode(automatic, BLADERF_CHANNEL_RX(chan));
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}
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bool bladerf_source_c::get_gain_mode(size_t chan)
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{
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return bladerf_common::get_gain_mode(BLADERF_CHANNEL_RX(chan));
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}
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double bladerf_source_c::set_gain(double gain, size_t chan)
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{
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return bladerf_common::set_gain(gain, BLADERF_CHANNEL_RX(chan));
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}
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double bladerf_source_c::set_gain(double gain, const std::string &name,
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size_t chan)
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{
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return bladerf_common::set_gain(gain, name, BLADERF_CHANNEL_RX(chan));
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}
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double bladerf_source_c::get_gain(size_t chan)
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{
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return bladerf_common::get_gain(BLADERF_CHANNEL_RX(chan));
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}
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double bladerf_source_c::get_gain(const std::string &name, size_t chan)
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{
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return bladerf_common::get_gain(name, BLADERF_CHANNEL_RX(chan));
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}
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std::vector < std::string > bladerf_source_c::get_antennas(size_t chan)
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{
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std::vector < std::string > antennas;
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antennas += "RX0";
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if (BLADERF_REV_2 == get_board_type(_dev.get())) {
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antennas += "RX1";
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}
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return antennas;
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}
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std::string bladerf_source_c::set_antenna(const std::string &antenna,
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size_t chan)
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{
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return get_antenna(BLADERF_CHANNEL_RX(chan));
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}
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std::string bladerf_source_c::get_antenna(size_t chan)
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{
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/* We only have a single receive antenna here */
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// TODO: this is a lie
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return "RX0";
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}
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void bladerf_source_c::set_dc_offset_mode(int mode, size_t chan)
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{
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if (osmosdr::source::DCOffsetOff == mode) {
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//_src->set_auto_dc_offset( false, chan );
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/* reset to default for off-state */
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set_dc_offset(std::complex < double >(0.0, 0.0), chan);
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} else if (osmosdr::source::DCOffsetManual == mode) {
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/* disable auto mode, but keep correcting with last known values */
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//_src->set_auto_dc_offset( false, chan );
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} else if (osmosdr::source::DCOffsetAutomatic == mode) {
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//_src->set_auto_dc_offset( true, chan );
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std::cerr << _pfx
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<< "Automatic DC correction mode is not implemented."
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<< std::endl;
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}
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}
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void bladerf_source_c::set_dc_offset(const std::complex < double > &offset,
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size_t chan)
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{
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int status;
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status = bladerf_common::set_dc_offset(BLADERF_RX, offset, chan);
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if (status != 0) {
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throw std::runtime_error(_pfx + "could not set dc offset: " +
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bladerf_strerror(status));
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}
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}
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void bladerf_source_c::set_iq_balance_mode(int mode, size_t chan)
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{
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if (osmosdr::source::IQBalanceOff == mode) {
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//_src->set_auto_iq_balance( false, chan );
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/* reset to default for off-state */
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set_iq_balance(std::complex < double >(0.0, 0.0), chan);
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} else if (osmosdr::source::IQBalanceManual == mode) {
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/* disable auto mode, but keep correcting with last known values */
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//_src->set_auto_iq_balance( false, chan );
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} else if (osmosdr::source::IQBalanceAutomatic == mode) {
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//_src->set_auto_iq_balance( true, chan );
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std::cerr << _pfx
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<< "Automatic IQ correction mode is not implemented."
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<< std::endl;
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}
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}
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void bladerf_source_c::set_iq_balance(const std::complex < double > &balance,
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size_t chan)
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{
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int status;
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status = bladerf_common::set_iq_balance(BLADERF_RX, balance, chan);
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if (status != 0) {
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throw std::runtime_error(_pfx + "could not set iq balance: " +
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bladerf_strerror(status));
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}
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}
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double bladerf_source_c::set_bandwidth(double bandwidth, size_t chan)
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{
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int status;
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uint32_t actual;
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if (bandwidth == 0.0) {
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/* bandwidth of 0 means automatic filter selection */
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/* select narrower filters to prevent aliasing */
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bandwidth = get_sample_rate() * 0.75;
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}
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status = bladerf_set_bandwidth(_dev.get(), BLADERF_RX, (uint32_t) bandwidth,
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&actual);
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if (status != 0) {
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throw std::runtime_error(_pfx + "could not set bandwidth: " +
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bladerf_strerror(status));
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}
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return get_bandwidth();
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}
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double bladerf_source_c::get_bandwidth(size_t chan)
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{
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int status;
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uint32_t bandwidth;
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status = bladerf_get_bandwidth(_dev.get(), BLADERF_RX, &bandwidth);
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if (status != 0) {
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throw std::runtime_error(_pfx + "could not get bandwidth: " +
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bladerf_strerror(status));
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}
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return (double) bandwidth;
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}
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osmosdr::freq_range_t bladerf_source_c::get_bandwidth_range(size_t chan)
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{
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return filter_bandwidths();
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}
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void bladerf_source_c::set_clock_source(const std::string &source,
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const size_t mboard)
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{
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bladerf_common::set_clock_source(source, mboard);
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}
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std::string bladerf_source_c::get_clock_source(const size_t mboard)
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{
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return bladerf_common::get_clock_source(mboard);
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}
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std::vector < std::string > bladerf_source_c::get_clock_sources(const size_t mboard)
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{
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return bladerf_common::get_clock_sources(mboard);
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}
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