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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) 2023
Matthias P. Braendli, matthias.braendli@mpb.li
http://opendigitalradio.org
DESCRIPTION:
It is an output driver using libiio targeting the PrecisionWave DEXTER board.
*/
/*
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_DEXTER
#include "iio.h"
#include <string>
#include <memory>
#include <ctime>
#include <mutex>
#include <thread>
#include <variant>
#include "output/SDR.h"
#include "ModPlugin.h"
#include "EtiReader.h"
#include "RemoteControl.h"
namespace Output {
enum class DexterClockState {
Startup,
Normal,
Holdover
};
class Dexter : public Output::SDRDevice
{
public:
Dexter(SDRDeviceConfig& config);
Dexter(const Dexter& other) = delete;
Dexter& operator=(const Dexter& other) = delete;
virtual ~Dexter();
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() const override;
virtual void set_bandwidth(double bandwidth) override;
virtual double get_bandwidth() const override;
virtual void transmit_frame(struct FrameData&& frame) override;
virtual run_statistics_t get_run_statistics() const override;
virtual double get_real_secs() const override;
virtual void set_rxgain(double rxgain) override;
virtual double get_rxgain() const override;
virtual size_t receive_frame(
complexf *buf,
size_t num_samples,
frame_timestamp& ts,
double timeout_secs) override;
// Return true if GPS and reference clock inputs are ok
virtual bool is_clk_source_ok() override;
virtual const char* device_name() const override;
virtual std::optional<double> get_temperature() const override;
private:
void channel_up();
void channel_down();
void handle_hw_time();
bool m_channel_is_up = false;
SDRDeviceConfig& m_conf;
struct iio_context* m_ctx = nullptr;
struct iio_device* m_dexter_dsp_tx = nullptr;
struct iio_device* m_ad9957 = nullptr;
struct iio_device* m_ad9957_tx0 = nullptr;
struct iio_channel* m_tx_channel = nullptr;
struct iio_buffer *m_buffer = nullptr;
/* Underflows are counted in a separate thread */
struct iio_context* m_underflow_ctx = nullptr;
std::atomic<bool> m_running = ATOMIC_VAR_INIT(false);
std::thread m_underflow_read_thread;
void underflow_read_process();
mutable std::mutex m_attr_thread_mutex;
size_t underflows = 0;
size_t prev_underflows = 0;
size_t num_late = 0;
size_t num_frames_modulated = 0;
size_t num_buffers_pushed = 0;
DexterClockState m_clock_state = DexterClockState::Startup;
// Only valid when m_clock_state is not Startup
uint64_t m_utc_seconds_at_startup = 0;
uint64_t m_clock_count_at_startup = 0;
// Only valid when m_clock_state Holdover
std::chrono::steady_clock::time_point m_holdover_since =
std::chrono::steady_clock::time_point::min();
std::time_t m_holdover_since_t = 0;
};
} // namespace Output
#endif //HAVE_DEXTER
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