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https://github.com/portapack-mayhem/mayhem-firmware.git
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033c4e9a5b
* Updated style * Updated files * fixed new line * Updated spacing * File fix WIP * Updated to clang 13 * updated comment style * Removed old comment code
102 lines
2.8 KiB
C++
102 lines
2.8 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2016 Furrtek
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __PROC_AFSKRX_H__
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#define __PROC_AFSKRX_H__
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#include "baseband_processor.hpp"
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#include "baseband_thread.hpp"
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#include "rssi_thread.hpp"
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#include "dsp_decimate.hpp"
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#include "dsp_demodulate.hpp"
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#include "audio_output.hpp"
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#include "fifo.hpp"
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#include "message.hpp"
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class AFSKRxProcessor : public BasebandProcessor {
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public:
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void execute(const buffer_c8_t& buffer) override;
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void on_message(const Message* const message) override;
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private:
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static constexpr size_t baseband_fs = 3072000;
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static constexpr size_t audio_fs = baseband_fs / 8 / 8 / 2;
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size_t samples_per_bit{};
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enum State {
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WAIT_START = 0,
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WAIT_STOP,
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RECEIVE
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};
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BasebandThread baseband_thread{baseband_fs, this, NORMALPRIO + 20, baseband::Direction::Receive};
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RSSIThread rssi_thread{NORMALPRIO + 10};
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std::array<complex16_t, 512> dst{};
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const buffer_c16_t dst_buffer{
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dst.data(),
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dst.size()};
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std::array<float, 32> audio{};
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const buffer_f32_t audio_buffer{
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audio.data(),
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audio.size()};
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// Array size ok down to 375 bauds (24000 / 375)
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std::array<int32_t, 64> delay_line{0};
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dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0{};
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dsp::decimate::FIRC16xR16x32Decim8 decim_1{};
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dsp::decimate::FIRAndDecimateComplex channel_filter{};
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dsp::demodulate::FM demod{};
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AudioOutput audio_output{};
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State state{};
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size_t delay_line_index{};
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uint32_t bit_counter{0};
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uint32_t word_bits{0};
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uint32_t sample_bits{0};
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uint32_t phase{}, phase_inc{};
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int32_t sample_mixed{}, prev_mixed{}, sample_filtered{}, prev_filtered{};
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uint32_t word_length{};
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uint32_t word_mask{};
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uint32_t trigger_value{};
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bool configured{false};
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bool wait_start{};
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bool bit_value{};
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bool trigger_word{};
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bool triggered{};
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void configure(const AFSKRxConfigureMessage& message);
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AFSKDataMessage data_message{false, 0};
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};
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#endif /*__PROC_TPMS_H__*/
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