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Added microphone TX (very basic for now)

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furrtek 2017-03-12 07:10:51 +00:00
parent 2d75722b74
commit 229ec3ea75
6 changed files with 282 additions and 1 deletions
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59
firmware/baseband/audio_input.cpp Normal file
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/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* 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 "audio_input.hpp"
#include "portapack_shared_memory.hpp"
#include "audio_dma.hpp"
#include "message.hpp"
#include <cstdint>
#include <cstddef>
#include <array>
void AudioInput::configure(
const iir_biquad_config_t& hpf_config,
const float squelch_threshold
) {
//hpf.configure(hpf_config);
//squelch.set_threshold(squelch_threshold);
}
void AudioInput::read_audio_buffer(buffer_s16_t& audio) {
//std::array<int16_t, 32> audio_int;
auto audio_buffer = audio::dma::rx_empty_buffer();
for(size_t i=0; i<audio_buffer.count; i++) {
//const int32_t sample_int = audio.p[i] * k;
//const int32_t sample_saturated = __SSAT(sample_int, 16);
audio.p[i] = audio_buffer.p[i].left;
//audio_int[i] = sample_saturated;
}
/*if( stream && send_to_fifo ) {
stream->write(audio_int.data(), audio_buffer.count * sizeof(audio_int[0]));
}*/
//feed_audio_stats(audio);
}