HackRF-Treasure-Chest/Software/portapack-mayhem/firmware/baseband/proc_mictx.cpp

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2022-09-22 18:26:57 +02:00
/*
* 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_mictx.hpp"
#include "portapack_shared_memory.hpp"
#include "sine_table_int8.hpp"
#include "tonesets.hpp"
#include "event_m4.hpp"
#include <cstdint>
void MicTXProcessor::execute(const buffer_c8_t& buffer){
// This is called at 1536000/2048 = 750Hz
if (!configured) return;
audio_input.read_audio_buffer(audio_buffer);
modulator->set_gain_vumeter_beep(audio_gain, play_beep ) ;
modulator->execute(audio_buffer, buffer, configured, beep_index, beep_timer, txprogress_message, level_message, power_acc_count, divider ); // Now "Key Tones & CTCSS" baseband additon inside FM mod. dsp_modulate.cpp"
/* Original fw 1.3.1 good reference, beep and vu-meter
for (size_t i = 0; i < buffer.count; i++) {
if (!play_beep) {
sample = audio_buffer.p[i >> 6] >> 8; // 1536000 / 64 = 24000
sample *= audio_gain;
power_acc += (sample < 0) ? -sample : sample; // Power average for UI vu-meter
if (power_acc_count) {
power_acc_count--;
} else {
power_acc_count = divider;
level_message.value = power_acc / (divider / 4); // Why ?
shared_memory.application_queue.push(level_message);
power_acc = 0;
}
} else {
if (beep_timer) {
beep_timer--;
} else {
beep_timer = baseband_fs * 0.05; // 50ms
if (beep_index == BEEP_TONES_NB) {
configured = false;
shared_memory.application_queue.push(txprogress_message);
} else {
beep_gen.configure(beep_deltas[beep_index], 1.0);
beep_index++;
}
}
sample = beep_gen.process(0); // TODO : Pending how to move inside modulate.cpp
}
*/
/* Original fw 1.3.1 good reference FM moulation version, including "key tones CTCSS" fw 1.3.1
sample = tone_gen.process(sample);
// FM
if (configured) {
delta = sample * fm_delta;
phase += delta;
sphase = phase >> 24;
re = (sine_table_i8[(sphase + 64) & 255]);
im = (sine_table_i8[sphase]);
} else {
re = 0;
im = 0;
}
buffer.p[i] = { re, im };
} */
}
void MicTXProcessor::on_message(const Message* const msg) {
const AudioTXConfigMessage config_message = *reinterpret_cast<const AudioTXConfigMessage*>(msg);
const RequestSignalMessage request_message = *reinterpret_cast<const RequestSignalMessage*>(msg);
switch(msg->id) {
case Message::ID::AudioTXConfig:
if (fm_enabled) {
dsp::modulate::FM *fm = new dsp::modulate::FM();
// Config fm_delta private var inside DSP modulate.cpp
fm->set_fm_delta(config_message.deviation_hz * (0xFFFFFFUL / baseband_fs));
// Config properly the private tone_gen function parameters inside DSP modulate.cpp
fm->set_tone_gen_configure(config_message.tone_key_delta, config_message.tone_key_mix_weight);
modulator = fm;
}
if (usb_enabled) {
modulator = new dsp::modulate::SSB();
modulator->set_mode(dsp::modulate::Mode::USB);
}
if (lsb_enabled) {
modulator = new dsp::modulate::SSB();
modulator->set_mode(dsp::modulate::Mode::LSB);
}
if (am_enabled) {
modulator = new dsp::modulate::AM();
modulator->set_mode(dsp::modulate::Mode::AM);
}
if (dsb_enabled) {
modulator = new dsp::modulate::AM();
modulator->set_mode(dsp::modulate::Mode::DSB);
}
modulator->set_over(baseband_fs / 24000); // Keep no change.
am_enabled = config_message.am_enabled;
usb_enabled = config_message.usb_enabled;
lsb_enabled = config_message.lsb_enabled;
dsb_enabled = config_message.dsb_enabled;
if (!am_enabled || !usb_enabled || !lsb_enabled || !dsb_enabled) {
fm_enabled = true;
}
audio_gain = config_message.audio_gain;
divider = config_message.divider;
power_acc_count = 0;
// now this config moved, in the case Message::ID::AudioTXConfig , only FM case.
// tone_gen.configure(config_message.tone_key_delta, config_message.tone_key_mix_weight);
txprogress_message.done = true;
play_beep = false;
configured = true;
break;
case Message::ID::RequestSignal:
if (request_message.signal == RequestSignalMessage::Signal::BeepRequest) {
beep_index = 0;
beep_timer = 0;
play_beep = true;
}
break;
default:
break;
}
}
int main() {
EventDispatcher event_dispatcher { std::make_unique<MicTXProcessor>() };
event_dispatcher.run();
return 0;
}