portapack-mayhem/firmware/baseband/rssi_thread.cpp

81 lines
2.2 KiB
C++

/*
* 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 "rssi_thread.hpp"
#include "rssi.hpp"
#include "rssi_dma.hpp"
#include "rssi_stats_collector.hpp"
#include "message.hpp"
#include "portapack_shared_memory.hpp"
WORKING_AREA(rssi_thread_wa, 128);
Thread* RSSIThread::thread = nullptr;
RSSIThread::RSSIThread(bool auto_start, tprio_t priority)
: priority_{priority} {
if (auto_start) start();
}
RSSIThread::~RSSIThread() {
if (thread) {
chThdTerminate(thread);
chThdWait(thread);
thread = nullptr;
}
}
void RSSIThread::start() {
if (!thread) {
thread = chThdCreateStatic(
rssi_thread_wa, sizeof(rssi_thread_wa),
priority_, ThreadBase::fn, this);
}
}
void RSSIThread::run() {
rf::rssi::init();
rf::rssi::dma::allocate(4, 400);
RSSIStatisticsCollector stats;
rf::rssi::start();
while (!chThdShouldTerminate()) {
// TODO: Place correct sampling rate into buffer returned here:
const auto buffer_tmp = rf::rssi::dma::wait_for_buffer();
const rf::rssi::buffer_t buffer{
buffer_tmp.p, buffer_tmp.count, sampling_rate};
stats.process(
buffer,
[](const RSSIStatistics& statistics) {
const RSSIStatisticsMessage message{statistics};
shared_memory.application_queue.push(message);
});
}
rf::rssi::stop();
rf::rssi::dma::free();
}