forked from sdr/gr-osmosdr
606 lines
17 KiB
C++
606 lines
17 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_sink_c.h"
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#include "osmosdr/sink.h"
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using namespace boost::assign;
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/******************************************************************************
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* Functions
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******************************************************************************/
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/*
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* Create a new instance of bladerf_sink_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_sink_c_sptr make_bladerf_sink_c(const std::string &args)
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{
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return gnuradio::get_initial_sptr(new bladerf_sink_c(args));
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}
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/******************************************************************************
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* Private methods
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******************************************************************************/
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/*
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* The private constructor
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*/
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bladerf_sink_c::bladerf_sink_c(const std::string &args) :
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gr::sync_block( "bladerf_sink_c",
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args_to_io_signature(args),
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gr::io_signature::make(0, 0, 0)),
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_16icbuf(NULL),
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_32fcbuf(NULL),
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_in_burst(false),
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_running(false)
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{
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dict_t dict = params_to_dict(args);
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/* Perform src/sink agnostic initializations */
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init(dict, BLADERF_TX);
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/* Check for RX-only params */
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if (dict.count("loopback")) {
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BLADERF_WARNING("Warning: 'loopback' has been specified on a bladeRF "
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"sink, and will have no effect. This parameter should be "
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"specified on the associated bladeRF source.");
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}
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if (dict.count("rxmux")) {
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BLADERF_WARNING("Warning: 'rxmux' has been specified on a bladeRF sink, "
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"and will have no effect.");
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}
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/* Bias tee */
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if (dict.count("biastee")) {
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set_biastee_mode(dict["biastee"]);
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}
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/* Initialize channel <-> antenna map */
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for (std::string ant : get_antennas()) {
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_chanmap[str2channel(ant)] = -1;
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}
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/* Bounds-checking output signature depending on our underlying hardware */
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if (get_num_channels() > get_max_channels()) {
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BLADERF_WARNING("Warning: number of channels specified on command line ("
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<< get_num_channels() << ") is greater than the maximum "
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"number supported by this device (" << get_max_channels()
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<< "). Resetting to " << get_max_channels() << ".");
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set_input_signature(gr::io_signature::make(get_max_channels(),
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get_max_channels(),
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sizeof(gr_complex)));
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}
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/* Set up constraints */
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int const alignment_multiple = volk_get_alignment() / sizeof(gr_complex);
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set_alignment(std::max(1,alignment_multiple));
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set_max_noutput_items(_samples_per_buffer);
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set_output_multiple(get_num_channels());
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/* Set channel layout */
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_layout = (get_num_channels() > 1) ? BLADERF_TX_X2 : BLADERF_TX_X1;
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/* Initial wiring of antennas to channels */
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for (size_t ch = 0; ch < get_num_channels(); ++ch) {
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set_channel_enable(BLADERF_CHANNEL_TX(ch), true);
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_chanmap[BLADERF_CHANNEL_TX(ch)] = ch;
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}
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BLADERF_DEBUG("initialization complete");
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}
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/******************************************************************************
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* Public methods
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******************************************************************************/
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std::string bladerf_sink_c::name()
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{
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return "bladeRF transmitter";
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}
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std::vector<std::string> bladerf_sink_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_sink_c::get_max_channels()
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{
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return bladerf_common::get_max_channels(BLADERF_TX);
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}
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size_t bladerf_sink_c::get_num_channels()
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{
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return input_signature()->max_streams();
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}
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bool bladerf_sink_c::start()
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{
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int status;
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BLADERF_DEBUG("starting sink");
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gr::thread::scoped_lock guard(d_mutex);
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_in_burst = false;
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status = bladerf_sync_config(_dev.get(), _layout, _format, _num_buffers,
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_samples_per_buffer, _num_transfers,
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_stream_timeout);
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if (status != 0) {
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BLADERF_THROW_STATUS(status, "bladerf_sync_config failed");
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}
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for (size_t ch = 0; ch < get_max_channels(); ++ch) {
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bladerf_channel brfch = BLADERF_CHANNEL_TX(ch);
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status = bladerf_enable_module(_dev.get(), brfch, get_channel_enable(brfch));
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if (status != 0) {
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BLADERF_THROW_STATUS(status, "bladerf_enable_module failed");
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}
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}
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/* Allocate memory for conversions in work() */
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size_t alignment = volk_get_alignment();
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_16icbuf = reinterpret_cast<int16_t *>(volk_malloc(2*_samples_per_buffer*sizeof(int16_t), alignment));
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_32fcbuf = reinterpret_cast<gr_complex *>(volk_malloc(_samples_per_buffer*sizeof(gr_complex), alignment));
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_running = true;
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return true;
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}
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bool bladerf_sink_c::stop()
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{
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int status;
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BLADERF_DEBUG("stopping sink");
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gr::thread::scoped_lock guard(d_mutex);
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if (!_running) {
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BLADERF_WARNING("sink already stopped, nothing to do here");
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return true;
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}
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_running = false;
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for (size_t ch = 0; ch < get_max_channels(); ++ch) {
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bladerf_channel brfch = BLADERF_CHANNEL_TX(ch);
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status = bladerf_enable_module(_dev.get(), brfch, get_channel_enable(brfch));
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if (status != 0) {
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BLADERF_THROW_STATUS(status, "bladerf_enable_module failed");
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}
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}
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/* Deallocate conversion memory */
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volk_free(_16icbuf);
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volk_free(_32fcbuf);
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_16icbuf = NULL;
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_32fcbuf = NULL;
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return true;
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}
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int bladerf_sink_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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int status;
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size_t nstreams = num_streams(_layout);
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gr::thread::scoped_lock guard(d_mutex);
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// if we aren't running, nothing to do here
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if (!_running) {
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return 0;
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}
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// copy the samples from input_items
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gr_complex const **in = reinterpret_cast<gr_complex const **>(&input_items[0]);
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if (nstreams > 1) {
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// we need to interleave the streams as we copy
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gr_complex *intl_out = _32fcbuf;
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for (size_t i = 0; i < (noutput_items/nstreams); ++i) {
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for (size_t n = 0; n < nstreams; ++n) {
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memcpy(intl_out++, in[n]++, sizeof(gr_complex));
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}
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}
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} else {
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// no interleaving to do: simply copy everything
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memcpy(_32fcbuf, in[0], noutput_items * sizeof(gr_complex));
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}
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// convert floating point to fixed point and scale
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// input_items is gr_complex (2x float), so num_points is 2*noutput_items
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volk_32f_s32f_convert_16i(_16icbuf, reinterpret_cast<float const *>(_32fcbuf),
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SCALING_FACTOR, 2*noutput_items);
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// transmit the samples from the temp buffer
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if (BLADERF_FORMAT_SC16_Q11_META == _format) {
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status = transmit_with_tags(_16icbuf, noutput_items);
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} else {
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status = bladerf_sync_tx(_dev.get(), static_cast<void const *>(_16icbuf),
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noutput_items, NULL, _stream_timeout);
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}
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// handle failure
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if (status != 0) {
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BLADERF_WARNING("bladerf_sync_tx error: " << bladerf_strerror(status));
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++_failures;
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if (_failures >= MAX_CONSECUTIVE_FAILURES) {
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BLADERF_WARNING("Consecutive error limit hit. Shutting down.");
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return WORK_DONE;
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}
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} else {
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_failures = 0;
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}
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return noutput_items;
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}
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int bladerf_sink_c::transmit_with_tags(int16_t const *samples,
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int noutput_items)
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{
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int status;
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int count = 0;
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// For a long burst, we may be transmitting the burst contents over
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// multiple work calls, so we'll just be sending the entire buffer
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// Therefore, we initialize our indicies for this case.
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int start_idx = 0;
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int end_idx = (noutput_items - 1);
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struct bladerf_metadata meta;
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std::vector<gr::tag_t> tags;
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int const INVALID_IDX = -1;
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int16_t const zeros[8] = { 0 };
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memset(&meta, 0, sizeof(meta));
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BLADERF_DEBUG("transmit_with_tags(" << noutput_items << ")");
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// Important Note: We assume that these tags are ordered by their offsets.
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// This is true for GNU Radio 3.7.7.x, since the GR runtime libs store
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// these in a multimap.
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//
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// If you're using an earlier GNU Radio version, you may have to sort
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// the tags vector.
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get_tags_in_window(tags, 0, 0, noutput_items);
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if (tags.size() == 0) {
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if (_in_burst) {
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BLADERF_DEBUG("TX'ing " << noutput_items << " samples within a burst...");
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return bladerf_sync_tx(_dev.get(), samples, noutput_items,
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&meta, _stream_timeout);
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} else {
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BLADERF_WARNING("Dropping " << noutput_items
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<< " samples not in a burst.");
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}
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}
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for (gr::tag_t tag : tags) {
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// Upon seeing an SOB tag, update our offset. We'll TX the start of the
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// burst when we see an EOB or at the end of this function - whichever
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// occurs first.
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if (pmt::symbol_to_string(tag.key) == "tx_sob") {
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if (_in_burst) {
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BLADERF_WARNING("Got SOB while already within a burst");
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return BLADERF_ERR_INVAL;
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} else {
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start_idx = static_cast<int>(tag.offset - nitems_read(0));
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BLADERF_DEBUG("Got SOB " << start_idx << " samples into work payload");
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meta.flags |= (BLADERF_META_FLAG_TX_NOW | BLADERF_META_FLAG_TX_BURST_START);
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_in_burst = true;
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}
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} else if (pmt::symbol_to_string(tag.key) == "tx_eob") {
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if (!_in_burst) {
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BLADERF_WARNING("Got EOB while not in burst");
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return BLADERF_ERR_INVAL;
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}
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// Upon seeing an EOB, transmit what we have and reset our state
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end_idx = static_cast<int>(tag.offset - nitems_read(0));
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BLADERF_DEBUG("Got EOB " << end_idx << " samples into work payload");
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if ((start_idx == INVALID_IDX) || (start_idx > end_idx)) {
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BLADERF_DEBUG("Buffer indicies are in an invalid state!");
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return BLADERF_ERR_INVAL;
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}
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count = end_idx - start_idx + 1;
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BLADERF_DEBUG("TXing @ EOB [" << start_idx << ":" << end_idx << "]");
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status = bladerf_sync_tx(_dev.get(),
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static_cast<void const *>(&samples[2 * start_idx]),
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count, &meta, _stream_timeout);
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if (status != 0) {
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return status;
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}
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/* TODO: libbladeRF should now take care of this for us,
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* as of the libbladeRF version that includes the
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* TX_UPDATE_TIMESTAMP flag. Verify this potentially remove this.
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* (The meta.flags changes would then be applied to the previous
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* bladerf_sync_tx() call.)
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*/
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BLADERF_DEBUG("TXing Zeros with burst end flag");
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meta.flags &= ~(BLADERF_META_FLAG_TX_NOW | BLADERF_META_FLAG_TX_BURST_START);
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meta.flags |= BLADERF_META_FLAG_TX_BURST_END;
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status = bladerf_sync_tx(_dev.get(), static_cast<void const *>(zeros),
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4, &meta, _stream_timeout);
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/* Reset our state */
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start_idx = INVALID_IDX;
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end_idx = (noutput_items - 1);
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meta.flags = 0;
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_in_burst = false;
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if (status != 0) {
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BLADERF_DEBUG("Failed to send zero samples to flush EOB");
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return status;
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}
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}
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}
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// We had a start of burst with no end yet - transmit those samples
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if (_in_burst) {
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count = end_idx - start_idx + 1;
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BLADERF_DEBUG("TXing SOB [" << start_idx << ":" << end_idx << "]");
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status = bladerf_sync_tx(_dev.get(),
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static_cast<void const *>(&samples[2 * start_idx]),
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count, &meta, _stream_timeout);
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}
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return status;
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}
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osmosdr::meta_range_t bladerf_sink_c::get_sample_rates()
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{
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return sample_rates(chan2channel(BLADERF_TX, 0));
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}
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double bladerf_sink_c::set_sample_rate(double rate)
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{
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return bladerf_common::set_sample_rate(rate, chan2channel(BLADERF_TX, 0));
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}
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double bladerf_sink_c::get_sample_rate()
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{
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return bladerf_common::get_sample_rate(chan2channel(BLADERF_TX, 0));
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}
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osmosdr::freq_range_t bladerf_sink_c::get_freq_range(size_t chan)
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{
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return bladerf_common::freq_range(chan2channel(BLADERF_TX, chan));
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}
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double bladerf_sink_c::set_center_freq(double freq, size_t chan)
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{
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return bladerf_common::set_center_freq(freq, chan2channel(BLADERF_TX, chan));
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}
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double bladerf_sink_c::get_center_freq(size_t chan)
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{
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return bladerf_common::get_center_freq(chan2channel(BLADERF_TX, chan));
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}
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double bladerf_sink_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 RX ppm value!) */
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BLADERF_WARNING("Frequency correction is not implemented.");
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return get_freq_corr(chan2channel(BLADERF_TX, chan));
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}
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double bladerf_sink_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_sink_c::get_gain_names(size_t chan)
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{
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return bladerf_common::get_gain_names(chan2channel(BLADERF_TX, chan));
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}
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osmosdr::gain_range_t bladerf_sink_c::get_gain_range(size_t chan)
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{
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return bladerf_common::get_gain_range(chan2channel(BLADERF_TX, chan));
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}
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osmosdr::gain_range_t bladerf_sink_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, chan2channel(BLADERF_TX, chan));
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}
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bool bladerf_sink_c::set_gain_mode(bool automatic, size_t chan)
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{
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return bladerf_common::set_gain_mode(automatic,
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chan2channel(BLADERF_TX, chan));
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}
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bool bladerf_sink_c::get_gain_mode(size_t chan)
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{
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return bladerf_common::get_gain_mode(chan2channel(BLADERF_TX, chan));
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}
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double bladerf_sink_c::set_gain(double gain, size_t chan)
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{
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return bladerf_common::set_gain(gain, chan2channel(BLADERF_TX, chan));
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}
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double bladerf_sink_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, chan2channel(BLADERF_TX, chan));
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}
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double bladerf_sink_c::get_gain(size_t chan)
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{
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return bladerf_common::get_gain(chan2channel(BLADERF_TX, chan));
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}
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double bladerf_sink_c::get_gain(const std::string &name, size_t chan)
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{
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return bladerf_common::get_gain(name, chan2channel(BLADERF_TX, chan));
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|
}
|
|
|
|
std::vector<std::string> bladerf_sink_c::get_antennas(size_t chan)
|
|
{
|
|
return bladerf_common::get_antennas(BLADERF_TX);
|
|
}
|
|
|
|
std::string bladerf_sink_c::set_antenna(const std::string &antenna,
|
|
size_t chan)
|
|
{
|
|
bool _was_running = _running;
|
|
|
|
if (_was_running) {
|
|
stop();
|
|
}
|
|
|
|
bladerf_common::set_antenna(BLADERF_TX, chan, antenna);
|
|
|
|
if (_was_running) {
|
|
start();
|
|
}
|
|
|
|
return get_antenna(chan);
|
|
}
|
|
|
|
std::string bladerf_sink_c::get_antenna(size_t chan)
|
|
{
|
|
return channel2str(chan2channel(BLADERF_TX, chan));
|
|
}
|
|
|
|
void bladerf_sink_c::set_dc_offset(const std::complex < double > &offset,
|
|
size_t chan)
|
|
{
|
|
int status;
|
|
|
|
status = bladerf_common::set_dc_offset(offset, chan2channel(BLADERF_TX, chan));
|
|
|
|
if (status != 0) {
|
|
BLADERF_THROW_STATUS(status, "could not set dc offset");
|
|
}
|
|
}
|
|
|
|
void bladerf_sink_c::set_iq_balance(const std::complex < double > &balance,
|
|
size_t chan)
|
|
{
|
|
int status;
|
|
|
|
status = bladerf_common::set_iq_balance(balance, chan2channel(BLADERF_TX, chan));
|
|
|
|
if (status != 0) {
|
|
BLADERF_THROW_STATUS(status, "could not set iq balance");
|
|
}
|
|
}
|
|
|
|
osmosdr::freq_range_t bladerf_sink_c::get_bandwidth_range(size_t chan)
|
|
{
|
|
return filter_bandwidths(chan2channel(BLADERF_TX, chan));
|
|
}
|
|
|
|
double bladerf_sink_c::set_bandwidth(double bandwidth, size_t chan)
|
|
{
|
|
return bladerf_common::set_bandwidth(bandwidth, chan2channel(BLADERF_TX, chan));
|
|
}
|
|
|
|
double bladerf_sink_c::get_bandwidth(size_t chan)
|
|
{
|
|
return bladerf_common::get_bandwidth(chan2channel(BLADERF_TX, chan));
|
|
}
|
|
|
|
std::vector < std::string > bladerf_sink_c::get_clock_sources(size_t mboard)
|
|
{
|
|
return bladerf_common::get_clock_sources(mboard);
|
|
}
|
|
|
|
void bladerf_sink_c::set_clock_source(const std::string &source,
|
|
size_t mboard)
|
|
{
|
|
bladerf_common::set_clock_source(source, mboard);
|
|
}
|
|
|
|
std::string bladerf_sink_c::get_clock_source(size_t mboard)
|
|
{
|
|
return bladerf_common::get_clock_source(mboard);
|
|
}
|
|
|
|
void bladerf_sink_c::set_biastee_mode(const std::string &mode)
|
|
{
|
|
int status;
|
|
bool enable;
|
|
|
|
if (mode == "on" || mode == "1" || mode == "rx") {
|
|
enable = true;
|
|
} else {
|
|
enable = false;
|
|
}
|
|
|
|
status = bladerf_set_bias_tee(_dev.get(), BLADERF_CHANNEL_TX(0), enable);
|
|
if (BLADERF_ERR_UNSUPPORTED == status) {
|
|
// unsupported, but not worth crashing out
|
|
BLADERF_WARNING("Bias-tee not supported by device");
|
|
} else if (status != 0) {
|
|
BLADERF_THROW_STATUS(status, "Failed to set bias-tee");
|
|
}
|
|
}
|