portapack-mayhem/firmware/baseband/baseband_thread.cpp

116 lines
3.0 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 "baseband_thread.hpp"
#include "dsp_types.hpp"
#include "baseband.hpp"
#include "baseband_sgpio.hpp"
#include "baseband_dma.hpp"
#include "rssi.hpp"
#include "i2s.hpp"
using namespace lpc43xx;
#include "portapack_shared_memory.hpp"
#include "utility.hpp"
#include <array>
static baseband::SGPIO baseband_sgpio;
WORKING_AREA(baseband_thread_wa, 4096);
Thread* BasebandThread::thread = nullptr;
BasebandThread::BasebandThread(
uint32_t sampling_rate,
BasebandProcessor* const baseband_processor,
const tprio_t priority,
const baseband::Direction direction
) : baseband_processor { baseband_processor },
_direction { direction },
sampling_rate { sampling_rate }
{
thread = chThdCreateStatic(baseband_thread_wa, sizeof(baseband_thread_wa),
priority, ThreadBase::fn,
this
);
}
BasebandThread::~BasebandThread() {
chThdTerminate(thread);
chThdWait(thread);
thread = nullptr;
}
void BasebandThread::run() {
baseband_sgpio.init();
baseband::dma::init();
const auto baseband_buffer = std::make_unique<std::array<baseband::sample_t, 8192>>();
baseband::dma::configure(
baseband_buffer->data(),
direction()
);
//baseband::dma::allocate(4, 2048);
baseband_sgpio.configure(direction());
baseband::dma::enable(direction());
baseband_sgpio.streaming_enable();
if (_direction == baseband::Direction::Transmit) {
while( !chThdShouldTerminate() ) {
// TODO: Place correct sampling rate into buffer returned here:
const baseband::buffer_t buffer_tmp = baseband::dma::wait_for_tx_buffer();
if( buffer_tmp ) {
buffer_c8_t buffer {
buffer_tmp.p, buffer_tmp.count, sampling_rate
};
if( baseband_processor ) {
baseband_processor->execute(buffer);
}
}
}
} else {
while( !chThdShouldTerminate() ) {
// TODO: Place correct sampling rate into buffer returned here:
const baseband::buffer_t buffer_tmp = baseband::dma::wait_for_rx_buffer();
if( buffer_tmp ) {
buffer_c8_t buffer {
buffer_tmp.p, buffer_tmp.count, sampling_rate
};
if( baseband_processor ) {
baseband_processor->execute(buffer);
}
}
}
}
i2s::i2s0::tx_mute();
baseband::dma::disable();
baseband_sgpio.streaming_disable();
}