circuitpython/ports/stm/common-hal/audiobusio/MEMS_Audio.c

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

97 lines
2.6 KiB
C
Raw Normal View History

/*
* The MIT License (MIT)
*
* Copyright (c) 2022 Matthew McGowan for Blues Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <assert.h>
#include <stm32l4xx_hal.h>
#include "MEMS_Audio.h"
#include "MEMS_Audio_ll.h"
static void default_pcm_data_available(MemsAudio *audio, pcm_sample_t *pcmSamples, size_t pcmLength) {
}
/**
* @brief Initializes the MemsAudio instance. Only one instance can be initialized and used at a given time.
*
* @param audio
* @return mems_audio_err_t
*/
mems_audio_err_t mems_audio_init(MemsAudio *audio) {
if (!audio->pcm_data_available) {
audio->pcm_data_available = default_pcm_data_available;
}
return mems_audio_ll_init(audio);
}
/**
* @brief Uninitializes the MemsAudio instance.
*
* @param audio
* @return mems_audio_err_t
*/
mems_audio_err_t mems_audio_uninit(MemsAudio *audio) {
return mems_audio_ll_uninit(audio);
}
/**
* @brief Asynchronously records audio.
*
* @param audio
* @param pdmBuffer
* @param pdmBufferLength
* @return mems_audio_err_t
*/
mems_audio_err_t mems_audio_record(MemsAudio *audio) {
return mems_audio_ll_record(audio);
}
/**
* @brief Pause recording audio.
*/
mems_audio_err_t mems_audio_pause(MemsAudio *audio) {
return mems_audio_ll_pause(audio);
}
/**
* @brief Resume recording audio.
*
* @param audio
* @return mems_audio_err_t
*/
mems_audio_err_t mems_audio_resume(MemsAudio *audio) {
return mems_audio_ll_resume(audio);
}
/**
* @brief Stop recording audio and
*
* @param audio
* @return mems_audio_err_t
*/
mems_audio_err_t mems_audio_stop(MemsAudio *audio) {
return mems_audio_ll_stop(audio);
}