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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) 2018
Matthias P. Braendli, matthias.braendli@mpb.li
http://opendigitalradio.org
DESCRIPTION:
It is an output driver for the USRP family of devices, and uses the UHD
library.
*/
/*
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
#ifdef HAVE_OUTPUT_UHD
#include <uhd/utils/safe_main.hpp>
#include <uhd/usrp/multi_usrp.hpp>
#include <chrono>
#include <memory>
#include <string>
#include <atomic>
#include <thread>
#include "Log.h"
#include "output/SDR.h"
#include "output/USRPTime.h"
#include "TimestampDecoder.h"
#include "RemoteControl.h"
#include "ThreadsafeQueue.h"
#include <stdio.h>
#include <sys/types.h>
// If the timestamp is further in the future than
// 100 seconds, abort
#define TIMESTAMP_ABORT_FUTURE 100
// Add a delay to increase buffers when
// frames are too far in the future
#define TIMESTAMP_MARGIN_FUTURE 0.5
namespace Output {
class UHD : public Output::SDRDevice
{
public:
UHD(SDRDeviceConfig& config);
UHD(const UHD& other) = delete;
UHD& operator=(const UHD& other) = delete;
~UHD();
virtual void tune(double lo_offset, double frequency) override;
virtual double get_tx_freq(void) const override;
virtual void set_txgain(double txgain) override;
virtual double get_txgain(void) const override;
virtual void transmit_frame(const struct FrameData& frame) override;
virtual RunStatistics get_run_statistics(void) const override;
virtual double get_real_secs(void) const override;
virtual void set_rxgain(double rxgain) override;
virtual double get_rxgain(void) const override;
virtual size_t receive_frame(
complexf *buf,
size_t num_samples,
struct frame_timestamp& ts,
double timeout_secs) override;
// Return true if GPS and reference clock inputs are ok
virtual bool is_clk_source_ok(void) const override;
virtual const char* device_name(void) const override;
private:
SDRDeviceConfig& m_conf;
uhd::usrp::multi_usrp::sptr m_usrp;
uhd::tx_streamer::sptr m_tx_stream;
uhd::rx_streamer::sptr m_rx_stream;
std::shared_ptr<USRPTime> m_device_time;
size_t num_underflows = 0;
size_t num_overflows = 0;
size_t num_late_packets = 0;
size_t num_frames_modulated = 0;
size_t num_underflows_previous = 0;
size_t num_late_packets_previous = 0;
// Used to print statistics once a second
std::chrono::steady_clock::time_point last_print_time;
// Returns true if we want to verify loss of refclk
bool refclk_loss_needs_check(void) const;
mutable bool suppress_refclk_loss_check = false;
// Poll asynchronous metadata from UHD
std::atomic<bool> m_running;
std::thread m_async_rx_thread;
void stop_threads(void);
void print_async_thread(void);
};
} // namespace Output
#endif // HAVE_OUTPUT_UHD
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