mirror of
https://github.com/eried/portapack-mayhem.git
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60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2016 Furrtek
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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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#ifndef __AUDIO_DMA_H__
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#define __AUDIO_DMA_H__
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#include <cstdint>
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#include "buffer.hpp"
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namespace audio {
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struct sample_t {
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union {
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struct {
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int16_t left;
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int16_t right;
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};
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uint32_t raw;
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};
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};
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using buffer_t = buffer_t<sample_t>;
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namespace dma {
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void init_audio_in();
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void init_audio_out();
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void disable();
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void shrink_tx_buffer(bool shrink);
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void beep_start(uint32_t freq, uint32_t sample_rate, uint32_t beep_duration_ms);
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void beep_stop();
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audio::buffer_t tx_empty_buffer();
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audio::buffer_t rx_empty_buffer();
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} /* namespace dma */
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} /* namespace audio */
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#endif /*__AUDIO_DMA_H__*/
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