mirror of
https://github.com/eried/portapack-mayhem.git
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109 lines
2.2 KiB
C++
109 lines
2.2 KiB
C++
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/*
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* Copyright (C) 2014 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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#ifndef __AUDIO_H__
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#define __AUDIO_H__
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#include "buffer.hpp"
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#include "i2s.hpp"
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using namespace lpc43xx;
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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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constexpr i2s::ConfigTX i2s0_config_tx {
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.dao = i2s::DAO {
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.wordwidth = i2s::WordWidth::Bits16,
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.mono = 0,
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.stop = 1,
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.reset = 0,
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.ws_sel = 0,
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.ws_halfperiod = 0x0f,
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.mute = 1,
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},
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.txrate = i2s::MCLKRate {
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.x_divider = 0,
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.y_divider = 0,
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},
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.txbitrate = i2s::BitRate {
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.bitrate = 7,
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},
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.txmode = i2s::Mode {
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.clksel = i2s::ClockSelect::BaseAudioClkOrExternalMCLK,
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.four_pin = 0,
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.mclk_out_en = 1,
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},
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};
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constexpr i2s::ConfigRX i2s0_config_rx {
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.dai = i2s::DAI {
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.wordwidth = i2s::WordWidth::Bits16,
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.mono = 0,
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.stop = 1,
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.reset = 0,
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.ws_sel = 1,
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.ws_halfperiod = 0x0f,
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},
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.rxrate = i2s::MCLKRate {
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.x_divider = 0,
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.y_divider = 0,
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},
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.rxbitrate = i2s::BitRate {
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.bitrate = 7,
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},
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.rxmode = i2s::Mode {
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.clksel = i2s::ClockSelect::BaseAudioClkOrExternalMCLK,
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.four_pin = 1,
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.mclk_out_en = 0,
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},
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};
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constexpr i2s::ConfigDMA i2s0_config_dma {
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.dma1 = i2s::DMA {
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.rx_enable = 1,
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.tx_enable = 0,
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.rx_depth = 4,
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.tx_depth = 0,
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},
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.dma2 = i2s::DMA {
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.rx_enable = 0,
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.tx_enable = 1,
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.rx_depth = 0,
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.tx_depth = 4,
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},
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};
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} /* namespace audio */
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#endif/*__AUDIO_H__*/
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