mayhem-firmware/firmware/baseband/baseband_thread.cpp

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/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* 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 "baseband_thread.hpp"
#include "dsp_types.hpp"
#include "baseband.hpp"
#include "baseband_stats_collector.hpp"
#include "baseband_sgpio.hpp"
#include "baseband_dma.hpp"
#include "rssi.hpp"
#include "i2s.hpp"
#include "proc_am_audio.hpp"
#include "proc_nfm_audio.hpp"
#include "proc_wfm_audio.hpp"
#include "proc_ais.hpp"
#include "proc_wideband_spectrum.hpp"
#include "proc_tpms.hpp"
#include "proc_ert.hpp"
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#include "proc_capture.hpp"
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#include "portapack_shared_memory.hpp"
#include <array>
static baseband::SGPIO baseband_sgpio;
WORKING_AREA(baseband_thread_wa, 4096);
Thread* BasebandThread::start(const tprio_t priority) {
return chThdCreateStatic(baseband_thread_wa, sizeof(baseband_thread_wa),
priority, ThreadBase::fn,
this
);
}
void BasebandThread::set_configuration(const BasebandConfiguration& new_configuration) {
if( new_configuration.mode != baseband_configuration.mode ) {
disable();
// TODO: Timing problem around disabling DMA and nulling and deleting old processor
auto old_p = baseband_processor;
baseband_processor = nullptr;
delete old_p;
baseband_processor = create_processor(new_configuration.mode);
enable();
}
baseband_configuration = new_configuration;
}
void BasebandThread::on_message(const Message* const message) {
if( message->id == Message::ID::BasebandConfiguration ) {
set_configuration(reinterpret_cast<const BasebandConfigurationMessage*>(message)->configuration);
} else {
if( baseband_processor ) {
baseband_processor->on_message(message);
}
}
}
void BasebandThread::run() {
baseband_sgpio.init();
baseband::dma::init();
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const auto baseband_buffer = std::make_unique<std::array<baseband::sample_t, 8192>>();
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baseband::dma::configure(
baseband_buffer->data(),
direction()
);
//baseband::dma::allocate(4, 2048);
BasebandStatsCollector stats {
chSysGetIdleThread(),
thread_main,
thread_rssi,
chThdSelf()
};
while(true) {
// TODO: Place correct sampling rate into buffer returned here:
const auto buffer_tmp = baseband::dma::wait_for_rx_buffer();
if( buffer_tmp ) {
buffer_c8_t buffer {
buffer_tmp.p, buffer_tmp.count, baseband_configuration.sampling_rate
};
if( baseband_processor ) {
baseband_processor->execute(buffer);
}
stats.process(buffer,
[](const BasebandStatistics& statistics) {
const BasebandStatisticsMessage message { statistics };
shared_memory.application_queue.push(message);
}
);
}
}
}
BasebandProcessor* BasebandThread::create_processor(const int32_t mode) {
switch(mode) {
case 0: return new NarrowbandAMAudio();
case 1: return new NarrowbandFMAudio();
case 2: return new WidebandFMAudio();
case 3: return new AISProcessor();
case 4: return new WidebandSpectrum();
case 5: return new TPMSProcessor();
case 6: return new ERTProcessor();
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case 7: return new CaptureProcessor();
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default: return nullptr;
}
}
void BasebandThread::disable() {
if( baseband_processor ) {
i2s::i2s0::tx_mute();
baseband::dma::disable();
baseband_sgpio.streaming_disable();
rf::rssi::stop();
}
}
void BasebandThread::enable() {
if( baseband_processor ) {
if( direction() == baseband::Direction::Receive ) {
rf::rssi::start();
}
baseband_sgpio.configure(direction());
baseband::dma::enable(direction());
baseband_sgpio.streaming_enable();
}
}