Function _audio_dev_control

components/drivers/audio/dev_audio.c:557–632

* @brief Control audio device * * @param[in] dev pointer to device * * @param[in] cmd audio cmd, it can be one of value in @ref group_audio_control * * @param[in] args command argument * * @return error code, RT_EOK is successful otherwise means failure */

 * @return error code, RT_EOK is successful otherwise means failure
 */
static rt_err_t _audio_dev_control(struct rt_device *dev, int cmd, void *args)
{
    rt_err_t result = RT_EOK;
    struct rt_audio_device *audio;
    RT_ASSERT(dev != RT_NULL);
    audio = (struct rt_audio_device *) dev;

    /* dev stat...*/
    switch (cmd)
    {
    case AUDIO_CTL_GETCAPS:
    {
        struct rt_audio_caps *caps = (struct rt_audio_caps *) args;

        LOG_D("AUDIO_CTL_GETCAPS: main_type = %d,sub_type = %d", caps->main_type, caps->sub_type);
        if (audio->ops->getcaps != RT_NULL)
        {
            result = audio->ops->getcaps(audio, caps);
        }

        break;
    }

    case AUDIO_CTL_CONFIGURE:
    {
        struct rt_audio_caps *caps = (struct rt_audio_caps *) args;

        LOG_D("AUDIO_CTL_CONFIGURE: main_type = %d,sub_type = %d", caps->main_type, caps->sub_type);
        if (audio->ops->configure != RT_NULL)
        {
            result = audio->ops->configure(audio, caps);
        }

        break;
    }

    case AUDIO_CTL_START:
    {
        int stream = *(int *) args;

        LOG_D("AUDIO_CTL_START: stream = %d", stream);
        if (stream == AUDIO_STREAM_REPLAY)
        {
            result = _aduio_replay_start(audio);
        }
        else
        {
            result = _audio_record_start(audio);
        }

        break;
    }

    case AUDIO_CTL_STOP:
    {
        int stream = *(int *) args;

        LOG_D("AUDIO_CTL_STOP: stream = %d", stream);