mirror of https://github.com/gnss-sdr/gnss-sdr
120 lines
4.3 KiB
C++
120 lines
4.3 KiB
C++
/*!
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* \file channel.h
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* \brief Interface of a GNSS channel.
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* \author Carlos Aviles, 2010. carlos.avilesr(at)googlemail.com
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* Luis Esteve, 2011. luis(at)epsilon-formacion.com
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*
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* It holds blocks for acquisition, tracking,
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* navigation data extraction and pseudorange calculation.
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*
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* -----------------------------------------------------------------------------
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*
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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* This file is part of GNSS-SDR.
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*
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* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#ifndef GNSS_SDR_CHANNEL_H
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#define GNSS_SDR_CHANNEL_H
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#include "channel_fsm.h"
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#include "channel_interface.h"
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#include "channel_msg_receiver_cc.h"
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#include "concurrent_queue.h"
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#include "gnss_signal.h"
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#include "gnss_synchro.h"
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#include <gnuradio/block.h>
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#include <pmt/pmt.h>
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <mutex>
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#include <string>
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/** \addtogroup Channel
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* Classes containing a GNSS channel.
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* \{ */
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/** \addtogroup Channel_adapters channel_adapters
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* Classes that wrap an AcquisitionInterface,
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* a TrackingInterface and a TelemetryDecoderInterface, and handles
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* their interaction.
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* \{ */
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class ConfigurationInterface;
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class AcquisitionInterface;
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class TrackingInterface;
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class TelemetryDecoderInterface;
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/*!
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* \brief This class represents a GNSS channel. It wraps an AcquisitionInterface,
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* a TrackingInterface and a TelemetryDecoderInterface, and handles
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* their interaction through a Finite State Machine
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*
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*/
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class Channel : public ChannelInterface
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{
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public:
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//! Constructor
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Channel(const ConfigurationInterface* configuration,
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uint32_t channel,
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std::shared_ptr<AcquisitionInterface> acq,
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std::shared_ptr<TrackingInterface> trk,
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std::shared_ptr<TelemetryDecoderInterface> nav,
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const std::string& role,
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const std::string& signal_str,
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Concurrent_Queue<pmt::pmt_t>* queue);
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~Channel() = default; //!< Destructor
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void connect(gr::top_block_sptr top_block) override; //!< Connects the tracking block to the top_block and to the telemetry
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void disconnect(gr::top_block_sptr top_block) override;
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gr::basic_block_sptr get_left_block() override;
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gr::basic_block_sptr get_left_block_trk() override; //!< Gets the GNU Radio tracking block input pointer
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gr::basic_block_sptr get_right_block_trk() override; //!< Gets the GNU Radio tracking block output pointer
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gr::basic_block_sptr get_left_block_acq() override; //!< Gets the GNU Radio acquisition block input pointer
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gr::basic_block_sptr get_right_block_acq() override; //!< Gets the GNU Radio acquisition block output pointer
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gr::basic_block_sptr get_right_block() override; //!< Gets the GNU Radio channel block output pointer
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inline std::string role() override { return role_; }
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inline std::string implementation() override { return std::string("Channel"); } //!< Returns "Channel"
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inline size_t item_size() override { return 2 * sizeof(float); }
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Gnss_Signal get_signal() override;
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void start_acquisition() override; //!< Start the State Machine
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void stop_channel() override; //!< Stop the State Machine
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void set_signal(const Gnss_Signal& gnss_signal_) override; //!< Sets the channel GNSS signal
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void assist_acquisition_doppler(double Carrier_Doppler_hz) override;
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inline std::shared_ptr<AcquisitionInterface> acquisition() const { return acq_; }
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inline std::shared_ptr<TrackingInterface> tracking() const { return trk_; }
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inline std::shared_ptr<TelemetryDecoderInterface> telemetry() const { return nav_; }
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private:
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bool glonass_dll_pll_c_aid_tracking_check() const;
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std::shared_ptr<ChannelFsm> channel_fsm_;
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std::shared_ptr<AcquisitionInterface> acq_;
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std::shared_ptr<TrackingInterface> trk_;
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std::shared_ptr<TelemetryDecoderInterface> nav_;
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channel_msg_receiver_cc_sptr channel_msg_rx_;
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Gnss_Synchro gnss_synchro_{};
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Gnss_Signal gnss_signal_;
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std::string role_;
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std::mutex mx_;
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uint32_t channel_;
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int glonass_extend_correlation_ms_;
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bool connected_;
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bool repeat_;
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bool flag_enable_fpga_;
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};
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/** \} */
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/** \} */
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#endif // GNSS_SDR_CHANNEL_H
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