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/*
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Her Majesty the
Queen in Right of Canada (Communications Research Center Canada)
Copyright (C) 2017
Matthias P. Braendli, matthias.braendli@mpb.li
http://opendigitalradio.org
DESCRIPTION:
Common interface for all SDR outputs
*/
/*
This file is part of ODR-DabMod.
ODR-DabMod is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
ODR-DabMod is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ODR-DabMod. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ModPlugin.h"
#include "EtiReader.h"
namespace Output {
using complexf = std::complex<float>;
enum refclk_lock_loss_behaviour_t { CRASH, IGNORE };
/* This structure is used as initial configuration for all SDR devices.
* It must also contain all remote-controllable settings, otherwise
* they will get lost on a modulator restart. */
struct SDRDeviceConfig {
std::string device;
long masterClockRate = 32768000;
unsigned sampleRate = 2048000;
double frequency = 0.0;
double lo_offset = 0.0;
double txgain = 0.0;
double rxgain = 0.0;
bool enableSync = false;
// When working with timestamps, mute the frames that
// do not have a timestamp
bool muteNoTimestamps = false;
unsigned dabMode = 0;
unsigned maxGPSHoldoverTime = 0;
/* allowed values for UHD : auto, int, sma, mimo */
std::string refclk_src;
/* allowed values for UHD : int, sma, mimo */
std::string pps_src;
/* allowed values for UHD : pos, neg */
std::string pps_polarity;
/* What to do when the reference clock PLL loses lock */
refclk_lock_loss_behaviour_t refclk_lock_loss_behaviour;
// muting can only be changed using the remote control
bool muting = false;
// TCP port on which to serve TX and RX samples for the
// digital pre distortion learning tool
uint16_t dpdFeedbackServerPort = 0;
};
// Each frame contains one OFDM frame, and its
// associated timestamp
struct FrameData {
// Buffer holding frame data
std::vector<uint8_t> buf;
// A full timestamp contains a TIST according to standard
// and time information within MNSC with tx_second.
struct frame_timestamp ts;
};
// All SDR Devices must implement the SDRDevice interface
class SDRDevice {
public:
struct RunStatistics {
size_t num_underruns;
size_t num_late_packets;
size_t num_overruns;
size_t num_frames_modulated; //TODO increment
};
// TODO make some functions const
virtual void tune(double lo_offset, double frequency) = 0;
virtual double get_tx_freq(void) = 0;
virtual void set_txgain(double txgain) = 0;
virtual double get_txgain(void) = 0;
virtual void transmit_frame(const struct FrameData& frame) = 0;
virtual RunStatistics get_run_statistics(void) = 0;
virtual double get_real_secs(void) = 0;
// Return true if GPS and reference clock inputs are ok
virtual bool is_clk_source_ok(void) = 0;
virtual const char* device_name(void) = 0;
};
class SDR : public ModOutput, public RemoteControllable {
public:
SDR(SDRDeviceConfig& config, std::shared_ptr<SDRDevice> device);
SDR(const SDR& other) = delete;
SDR operator=(const SDR& other) = delete;
~SDR();
virtual int process(Buffer *dataIn) override;
virtual const char* name() override;
void setETISource(EtiSource *etiSource);
/*********** REMOTE CONTROL ***************/
/* Base function to set parameters. */
virtual void set_parameter(const std::string& parameter,
const std::string& value) override;
/* Getting a parameter always returns a string. */
virtual const std::string get_parameter(
const std::string& parameter) const override;
private:
void stop(void);
void process_thread_entry(void);
void handle_frame(struct FrameData &frame);
SDRDeviceConfig& m_config;
std::atomic<bool> m_running;
std::thread m_device_thread;
ThreadsafeQueue<FrameData> m_queue;
std::shared_ptr<SDRDevice> m_device;
std::string m_name;
EtiSource *m_eti_source = nullptr;
bool sourceContainsTimestamp = false;
bool last_tx_time_initialised = false;
uint32_t last_tx_second = 0;
uint32_t last_tx_pps = 0;
};
}
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