portapack-mayhem/firmware/common/buffer_exchange.cpp

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/*
* Copyright (C) 2016 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 "buffer_exchange.hpp"
// DEBUG:
#include "hackrf_gpio.hpp"
using namespace hackrf::one;
BufferExchange* BufferExchange::obj { nullptr };
BufferExchange::BufferExchange(
CaptureConfig* const config
) // : config_capture { config }
{
obj = this;
direction = CAPTURE;
fifo_buffers_for_baseband = config->fifo_buffers_empty;
fifo_buffers_for_application = config->fifo_buffers_full;
}
BufferExchange::BufferExchange(
ReplayConfig* const config
) // : config_replay { config }
{
obj = this;
direction = REPLAY;
fifo_buffers_for_baseband = config->fifo_buffers_full;
fifo_buffers_for_application = config->fifo_buffers_empty;
}
BufferExchange::~BufferExchange() {
obj = nullptr;
fifo_buffers_for_baseband = nullptr;
fifo_buffers_for_application = nullptr;
}
StreamBuffer* BufferExchange::get(FIFO<StreamBuffer*>* fifo) {
while(true) {
StreamBuffer* p { nullptr };
fifo->out(p);
led_tx.on(); // DEBUG
if( p ) {
return p;
}
chSysLock();
thread = chThdSelf();
chSchGoSleepS(THD_STATE_SUSPENDED);
chSysUnlock();
}
}