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Renamed proc_weather, bc now multifunctional

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HTotoo
2023-12-09 16:47:44 +01:00
parent d2cb93d957
commit 39fabab022
6 changed files with 9 additions and 9 deletions
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firmware/baseband/proc_weather.cpp
-103
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@@ -1,103 +0,0 @@
/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* This file is part of PortaPack.
*
* This program 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 2, or (at your option)
* any later version.
*
* This program 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 this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "proc_weather.hpp"
#include "portapack_shared_memory.hpp"
#include "event_m4.hpp"
void WeatherProcessor::execute(const buffer_c8_t& buffer) {
if (!configured) return;
// SR = 4Mhz , and we are decimating by /8 in total , decim1_out clock 4Mhz /8= 500khz samples/sec.
// buffer has 2048 complex i8 I,Q signed samples
// decim0 out: 2048/4 = 512 complex i16 I,Q signed samples
// decim1 out: 512/2 = 256 complex i16 I,Q signed samples
// Regarding Filters, we are re-using existing FIR filters, @4Mhz, FIR decim1 ilter, BW =+-220Khz (at -3dB's). BW = 440kHZ.
const auto decim_0_out = decim_0.execute(buffer, dst_buffer); // Input:2048 complex/4 (decim factor) = 512_output complex (1024 I/Q samples)
const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer); // Input:512 complex/2 (decim factor) = 256_output complex ( 512 I/Q samples)
for (size_t i = 0; i < decim_1_out.count; i++) {
int16_t re = decim_1_out.p[i].real();
int16_t im = decim_1_out.p[i].imag();
uint32_t mag = ((uint32_t)re * (uint32_t)re) + ((uint32_t)im * (uint32_t)im);
mag = (mag >> 12); // Decim samples are calculated with saturated gain . (we could also reduce that sat. param at configure time)
bool meashl = (mag > threshold);
tm += mag;
if (meashl == currentHiLow && currentDuration < 10'000'000) // allow pass 'end' signal
{
if (currentDuration < UINT32_MAX) currentDuration += nsPerDecSamp;
} else { // called on change, so send the last duration and dir.
if (protoList) protoList->feed(currentHiLow, currentDuration / 1000);
currentDuration = nsPerDecSamp;
currentHiLow = meashl;
}
}
cnt += decim_1_out.count; // TODO , check if it is necessary that xdecim factor.
if (cnt > 30'000) {
threshold = (tm / cnt) / 2;
cnt = 0;
tm = 0;
if (threshold < 50) threshold = 50;
if (threshold > 1700) threshold = 1700;
}
}
void WeatherProcessor::on_message(const Message* const message) {
if (message->id == Message::ID::WeatherRxConfigure)
configure(*reinterpret_cast<const SubGhzFPRxConfigureMessage*>(message));
}
void WeatherProcessor::configure(const SubGhzFPRxConfigureMessage& message) {
constexpr size_t decim_0_output_fs = baseband_fs / decim_0.decimation_factor;
// constexpr size_t decim_1_output_fs = decim_0_output_fs / decim_1.decimation_factor; //unused
decim_0.configure(taps_200k_wfm_decim_0.taps);
decim_1.configure(taps_200k_wfm_decim_1.taps);
if (protoMode != message.protoMode) {
// change it.
FProtoListGeneral* tmp = protoList;
protoList = NULL;
protoMode = message.protoMode;
if (tmp) free(tmp); // takes some time
if (protoMode == 0) protoList = new WeatherProtos();
if (protoMode == 1) protoList = new SubGhzDProtos();
}
modulation = message.modulation; // NIY
if (protoList != NULL) {
protoList->setModulation(modulation);
}
configured = true;
}
int main() {
EventDispatcher event_dispatcher{std::make_unique<WeatherProcessor>()};
event_dispatcher.run();
return 0;
}