75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
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/*
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* Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "buffer_exchange.hpp"
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BufferExchange* BufferExchange::obj { nullptr };
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BufferExchange::BufferExchange(
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CaptureConfig* const config
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) // : config_capture { config }
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{
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obj = this;
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// In capture mode, baseband wants empty buffers, app waits for full buffers
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fifo_buffers_for_baseband = config->fifo_buffers_empty;
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fifo_buffers_for_application = config->fifo_buffers_full;
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}
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BufferExchange::BufferExchange(
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ReplayConfig* const config
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) // : config_replay { config }
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{
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obj = this;
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// In replay mode, baseband wants full buffers, app waits for empty buffers
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fifo_buffers_for_baseband = config->fifo_buffers_full;
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fifo_buffers_for_application = config->fifo_buffers_empty;
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}
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BufferExchange::~BufferExchange() {
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obj = nullptr;
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fifo_buffers_for_baseband = nullptr;
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fifo_buffers_for_application = nullptr;
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}
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StreamBuffer* BufferExchange::get(FIFO<StreamBuffer*>* fifo) {
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while(true) {
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StreamBuffer* p { nullptr };
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fifo->out(p);
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if( p ) {
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return p;
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}
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// Put thread to sleep, woken up by M4 IRQ
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chSysLock();
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thread = chThdSelf();
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chSchGoSleepS(THD_STATE_SUSPENDED);
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chSysUnlock();
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}
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}
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StreamBuffer* BufferExchange::get_prefill(FIFO<StreamBuffer*>* fifo) {
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StreamBuffer* p { nullptr };
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fifo->out(p);
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return p;
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}
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