mirror of https://github.com/gnss-sdr/gnss-sdr
232 lines
5.1 KiB
C++
232 lines
5.1 KiB
C++
/*!
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* \file channel_fsm.cc
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* \brief Implementation of a State Machine for channel
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* \authors Javier Arribas, 2019. javiarribas@gmail.com
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* Antonio Ramos, 2017. antonio.ramos(at)cttc.es
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* Luis Esteve, 2011. luis(at)epsilon-formacion.com
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2019 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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* GNSS-SDR 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 of the License, or
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* (at your option) any later version.
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*
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* GNSS-SDR 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 GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#include "channel_fsm.h"
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#include "channel_event.h"
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#include <glog/logging.h>
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#include <utility>
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ChannelFsm::ChannelFsm()
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{
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acq_ = nullptr;
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trk_ = nullptr;
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channel_ = 0U;
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d_state = 0U;
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}
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ChannelFsm::ChannelFsm(std::shared_ptr<AcquisitionInterface> acquisition) : acq_(std::move(acquisition))
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{
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trk_ = nullptr;
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channel_ = 0U;
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d_state = 0U;
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}
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bool ChannelFsm::Event_stop_channel()
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{
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std::lock_guard<std::mutex> lk(mx);
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DLOG(INFO) << "CH = " << channel_ << ". Ev stop channel";
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switch (d_state)
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{
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case 0: // already in stanby
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break;
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case 1: // acquisition
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d_state = 0;
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stop_acquisition();
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break;
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case 2: // tracking
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d_state = 0;
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stop_tracking();
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break;
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default:
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break;
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}
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return true;
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}
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bool ChannelFsm::Event_start_acquisition_fpga()
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{
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std::lock_guard<std::mutex> lk(mx);
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if ((d_state == 1) || (d_state == 2))
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{
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return false;
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}
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d_state = 1;
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DLOG(INFO) << "CH = " << channel_ << ". Ev start acquisition FPGA";
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return true;
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}
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bool ChannelFsm::Event_start_acquisition()
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{
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std::lock_guard<std::mutex> lk(mx);
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if ((d_state == 1) || (d_state == 2))
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{
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return false;
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}
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d_state = 1;
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start_acquisition();
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DLOG(INFO) << "CH = " << channel_ << ". Ev start acquisition";
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return true;
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}
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bool ChannelFsm::Event_valid_acquisition()
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{
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std::lock_guard<std::mutex> lk(mx);
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if (d_state != 1)
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{
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return false;
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}
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d_state = 2;
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start_tracking();
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DLOG(INFO) << "CH = " << channel_ << ". Ev valid acquisition";
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return true;
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}
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bool ChannelFsm::Event_failed_acquisition_repeat()
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{
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std::lock_guard<std::mutex> lk(mx);
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if (d_state != 1)
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{
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return false;
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}
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d_state = 1;
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start_acquisition();
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DLOG(INFO) << "CH = " << channel_ << ". Ev failed acquisition repeat";
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return true;
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}
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bool ChannelFsm::Event_failed_acquisition_no_repeat()
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{
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std::lock_guard<std::mutex> lk(mx);
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if (d_state != 1)
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{
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return false;
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}
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d_state = 3;
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request_satellite();
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DLOG(INFO) << "CH = " << channel_ << ". Ev failed acquisition no repeat";
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return true;
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}
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bool ChannelFsm::Event_failed_tracking_standby()
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{
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std::lock_guard<std::mutex> lk(mx);
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if (d_state != 2)
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{
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return false;
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}
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d_state = 0U;
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notify_stop_tracking();
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DLOG(INFO) << "CH = " << channel_ << ". Ev failed tracking standby";
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return true;
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}
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void ChannelFsm::set_acquisition(std::shared_ptr<AcquisitionInterface> acquisition)
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{
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std::lock_guard<std::mutex> lk(mx);
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acq_ = std::move(acquisition);
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}
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void ChannelFsm::set_tracking(std::shared_ptr<TrackingInterface> tracking)
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{
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std::lock_guard<std::mutex> lk(mx);
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trk_ = std::move(tracking);
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}
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void ChannelFsm::set_telemetry(std::shared_ptr<TelemetryDecoderInterface> telemetry)
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{
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std::lock_guard<std::mutex> lk(mx);
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nav_ = std::move(telemetry);
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}
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void ChannelFsm::set_queue(std::shared_ptr<Concurrent_Queue<pmt::pmt_t>> queue)
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{
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std::lock_guard<std::mutex> lk(mx);
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queue_ = std::move(queue);
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}
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void ChannelFsm::set_channel(uint32_t channel)
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{
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std::lock_guard<std::mutex> lk(mx);
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channel_ = channel;
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}
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void ChannelFsm::stop_acquisition()
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{
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acq_->stop_acquisition();
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}
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void ChannelFsm::stop_tracking()
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{
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trk_->stop_tracking();
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}
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void ChannelFsm::start_acquisition()
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{
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acq_->reset();
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nav_->reset();
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}
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void ChannelFsm::start_tracking()
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{
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trk_->start_tracking();
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queue_->push(pmt::make_any(channel_event_make(channel_, 1)));
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}
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void ChannelFsm::request_satellite()
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{
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queue_->push(pmt::make_any(channel_event_make(channel_, 0)));
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}
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void ChannelFsm::notify_stop_tracking()
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{
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queue_->push(pmt::make_any(channel_event_make(channel_, 2)));
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}
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