Exemplos de power_up_sst em C++ (Cpp)

Exemplo n.º 1

Arquivo: pcm.c Projeto: ratsbu11/android_kernel_asus_zenfone5

static int sst_media_open(struct snd_pcm_substream *substream,
		struct snd_soc_dai *dai)
{
	int ret_val = 0;
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct sst_runtime_stream *stream;

	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
	if (!stream)
		return -ENOMEM;

	spin_lock_init(&stream->status_lock);

	/* get the sst ops */
	mutex_lock(&sst_dsp_lock);
	if (!sst_dsp ||
	    !try_module_get(sst_dsp->dev->driver->owner)) {
		pr_err("no device available to run\n");
		ret_val = -ENODEV;
		goto out_ops;
	}
	stream->ops = sst_dsp->ops;
	mutex_unlock(&sst_dsp_lock);

	stream->stream_info.str_id = 0;
	sst_set_stream_status(stream, SST_PLATFORM_UNINIT);
	stream->stream_info.mad_substream = substream;
	runtime->private_data = stream;

	if (strstr(dai->name, "Power-cpu-dai"))
		return power_up_sst(stream);

	/* Make sure, that the period size is always even */
	snd_pcm_hw_constraint_step(substream->runtime, 0,
			   SNDRV_PCM_HW_PARAM_PERIODS, 2);

	pr_debug("buf_ptr %llu\n", stream->stream_info.buffer_ptr);
	return snd_pcm_hw_constraint_integer(runtime,
			 SNDRV_PCM_HW_PARAM_PERIODS);
out_ops:
	kfree(stream);
	mutex_unlock(&sst_dsp_lock);
	return ret_val;
}

Exemplo n.º 2

Arquivo: sst-mfld-platform-pcm.c Projeto: 383530895/linux

static int sst_media_open(struct snd_pcm_substream *substream,
		struct snd_soc_dai *dai)
{
	int ret_val = 0;
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct sst_runtime_stream *stream;

	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
	if (!stream)
		return -ENOMEM;
	spin_lock_init(&stream->status_lock);

	/* get the sst ops */
	mutex_lock(&sst_lock);
	if (!sst ||
	    !try_module_get(sst->dev->driver->owner)) {
		dev_err(dai->dev, "no device available to run\n");
		ret_val = -ENODEV;
		goto out_ops;
	}
	stream->ops = sst->ops;
	mutex_unlock(&sst_lock);

	stream->stream_info.str_id = 0;

	stream->stream_info.arg = substream;
	/* allocate memory for SST API set */
	runtime->private_data = stream;

	ret_val = power_up_sst(stream);
	if (ret_val < 0)
		return ret_val;

	/* Make sure, that the period size is always even */
	snd_pcm_hw_constraint_step(substream->runtime, 0,
			   SNDRV_PCM_HW_PARAM_PERIODS, 2);

	return snd_pcm_hw_constraint_integer(runtime,
			 SNDRV_PCM_HW_PARAM_PERIODS);
out_ops:
	kfree(stream);
	mutex_unlock(&sst_lock);
	return ret_val;
}