mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
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87 lines
2.9 KiB
C++
87 lines
2.9 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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/*
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Creator: @htotoo
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*/
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#ifndef __PROC_WEATHER_H__
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#define __PROC_WEATHER_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 "message.hpp"
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#include "dsp_decimate.hpp"
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#pragma GCC push_options
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#pragma GCC optimize("Os")
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#include "fprotos/subghzdprotos.hpp"
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#pragma GCC pop_options
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#define OOK_EST_HIGH_RATIO 3 // Constant for slowness of OOK high level estimator
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#define OOK_EST_LOW_RATIO 5 // Constant for slowness of OOK low level (noise) estimator (very slow)
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#define OOK_MAX_HIGH_LEVEL 450000
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class SubGhzDProcessor : 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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enum {
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STATE_IDLE = 0,
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STATE_PULSE = 1,
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STATE_GAP_START = 2,
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STATE_GAP = 3,
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} sig_state = STATE_IDLE;
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uint32_t low_estimate = 100;
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uint32_t high_estimate = 12000;
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uint32_t min_high_level = 10;
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uint8_t numg = 0; // count of matched signals to filter spikes
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size_t baseband_fs = 0; // will be set later by configure message
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uint32_t nsPerDecSamp = 0;
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/* Array Buffer aux. used in decim0 and decim1 IQ c16 signed data ; (decim0 defines the max length of the array) */
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std::array<complex16_t, 512> dst{}; // decim0 /4 , 2048/4 = 512 complex I,Q
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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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/* Decimates */
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dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0{};
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dsp::decimate::FIRC16xR16x16Decim2 decim_1{};
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uint32_t currentDuration = 0;
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uint32_t threshold = 0x0630;
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bool currentHiLow = false;
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bool configured{false};
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FProtoListGeneral* protoList = new SubGhzDProtos(); // holds all the protocols we can parse
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void configure(const SubGhzFPRxConfigureMessage& message);
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/* NB: Threads should be the last members in the class definition. */
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BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive};
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RSSIThread rssi_thread{};
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};
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#endif /*__PROC_WEATHER_H__*/
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