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authorMatthias P. Braendli <matthias.braendli@mpb.li>2023-11-21 22:12:14 +0100
committerMatthias P. Braendli <matthias.braendli@mpb.li>2023-11-21 22:12:14 +0100
commit5fe36a627405b8fc65bdb212a6d505b9a6c8e489 (patch)
tree8646d654e0467be8603c5ad37fb6cd89656dfd26 /src/output/Dexter.h
parent477ac4639a7c7f74f07a6164096fc7de102528ff (diff)
parentf84065c3cc6fff0edb771f85190f7228f4d740b6 (diff)
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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
+