mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-27 00:09:36 -05:00
109 lines
2.2 KiB
C++
109 lines
2.2 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __AUDIO_H__
|
||
|
|
#define __AUDIO_H__
|
||
|
|
|
||
|
|
#include "buffer.hpp"
|
||
|
|
|
||
|
|
#include "i2s.hpp"
|
||
|
|
using namespace lpc43xx;
|
||
|
|
|
||
|
|
namespace audio {
|
||
|
|
|
||
|
|
struct sample_t {
|
||
|
|
union {
|
||
|
|
struct {
|
||
|
|
int16_t left;
|
||
|
|
int16_t right;
|
||
|
|
};
|
||
|
|
uint32_t raw;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
using buffer_t = buffer_t<sample_t>;
|
||
|
|
|
||
|
|
constexpr i2s::ConfigTX i2s0_config_tx {
|
||
|
|
.dao = i2s::DAO {
|
||
|
|
.wordwidth = i2s::WordWidth::Bits16,
|
||
|
|
.mono = 0,
|
||
|
|
.stop = 1,
|
||
|
|
.reset = 0,
|
||
|
|
.ws_sel = 0,
|
||
|
|
.ws_halfperiod = 0x0f,
|
||
|
|
.mute = 1,
|
||
|
|
},
|
||
|
|
.txrate = i2s::MCLKRate {
|
||
|
|
.x_divider = 0,
|
||
|
|
.y_divider = 0,
|
||
|
|
},
|
||
|
|
.txbitrate = i2s::BitRate {
|
||
|
|
.bitrate = 7,
|
||
|
|
},
|
||
|
|
.txmode = i2s::Mode {
|
||
|
|
.clksel = i2s::ClockSelect::BaseAudioClkOrExternalMCLK,
|
||
|
|
.four_pin = 0,
|
||
|
|
.mclk_out_en = 1,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
constexpr i2s::ConfigRX i2s0_config_rx {
|
||
|
|
.dai = i2s::DAI {
|
||
|
|
.wordwidth = i2s::WordWidth::Bits16,
|
||
|
|
.mono = 0,
|
||
|
|
.stop = 1,
|
||
|
|
.reset = 0,
|
||
|
|
.ws_sel = 1,
|
||
|
|
.ws_halfperiod = 0x0f,
|
||
|
|
},
|
||
|
|
.rxrate = i2s::MCLKRate {
|
||
|
|
.x_divider = 0,
|
||
|
|
.y_divider = 0,
|
||
|
|
},
|
||
|
|
.rxbitrate = i2s::BitRate {
|
||
|
|
.bitrate = 7,
|
||
|
|
},
|
||
|
|
.rxmode = i2s::Mode {
|
||
|
|
.clksel = i2s::ClockSelect::BaseAudioClkOrExternalMCLK,
|
||
|
|
.four_pin = 1,
|
||
|
|
.mclk_out_en = 0,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
constexpr i2s::ConfigDMA i2s0_config_dma {
|
||
|
|
.dma1 = i2s::DMA {
|
||
|
|
.rx_enable = 1,
|
||
|
|
.tx_enable = 0,
|
||
|
|
.rx_depth = 4,
|
||
|
|
.tx_depth = 0,
|
||
|
|
},
|
||
|
|
.dma2 = i2s::DMA {
|
||
|
|
.rx_enable = 0,
|
||
|
|
.tx_enable = 1,
|
||
|
|
.rx_depth = 0,
|
||
|
|
.tx_depth = 4,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
} /* namespace audio */
|
||
|
|
|
||
|
|
#endif/*__AUDIO_H__*/
|