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ASoC: Intel: avs: Store pointer to link_stream in dma_data

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While the HDAudio codec driver expectations must be met - store valid
pointer to HDAudio LINK stream in substream->runtime->private_data - the
code is more readable and easier to maintain if dma_data stores pointers
to both HOST and LINK stream.

DAI BE operations can refer to the LINK stream with data->link_stream,
similarly to how DAI FE operations access the HOST stream with
data->host_stream.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20240426095733.3946951-8-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski
2024-04-26 11:57:32 +02:00
committed by Mark Brown
parent 0f8843ca4f
commit cdcb770a60
1 changed files with 19 additions and 21 deletions
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40
sound/soc/intel/avs/pcm.c
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@@ -23,13 +23,12 @@ struct avs_dma_data {
struct avs_tplg_path_template *template;
struct avs_path *path;
struct avs_dev *adev;
/*
* link stream is stored within substream's runtime
* private_data to fulfill the needs of codec BE path
*
* host stream assigned
*/
struct hdac_ext_stream *host_stream;
/* LINK-stream utilized in BE operations while HOST in FE ones. */
union {
struct hdac_ext_stream *link_stream;
struct hdac_ext_stream *host_stream;
};
struct snd_pcm_substream *substream;
};
@@ -263,6 +262,7 @@ static int avs_dai_hda_be_startup(struct snd_pcm_substream *substream, struct sn
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct hdac_ext_stream *link_stream;
struct avs_dma_data *data;
struct hda_codec *codec;
int ret;
@@ -278,18 +278,18 @@ static int avs_dai_hda_be_startup(struct snd_pcm_substream *substream, struct sn
return -EBUSY;
}
data = snd_soc_dai_get_dma_data(dai, substream);
data->link_stream = link_stream;
substream->runtime->private_data = link_stream;
return 0;
}
static void avs_dai_hda_be_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
{
struct hdac_ext_stream *link_stream;
struct avs_dma_data *data = snd_soc_dai_get_dma_data(dai, substream);
link_stream = substream->runtime->private_data;
snd_hdac_ext_stream_release(link_stream, HDAC_EXT_STREAM_TYPE_LINK);
snd_hdac_ext_stream_release(data->link_stream, HDAC_EXT_STREAM_TYPE_LINK);
substream->runtime->private_data = NULL;
avs_dai_shutdown(substream, dai);
}
@@ -297,16 +297,13 @@ static int avs_dai_hda_be_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params, struct snd_soc_dai *dai)
{
struct avs_dma_data *data;
struct hdac_ext_stream *link_stream;
data = snd_soc_dai_get_dma_data(dai, substream);
if (data->path)
return 0;
link_stream = substream->runtime->private_data;
return avs_dai_be_hw_params(substream, hw_params, dai,
hdac_stream(link_stream)->stream_tag - 1);
hdac_stream(data->link_stream)->stream_tag - 1);
}
static int avs_dai_hda_be_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
@@ -323,7 +320,7 @@ static int avs_dai_hda_be_hw_free(struct snd_pcm_substream *substream, struct sn
if (!data->path)
return 0;
link_stream = substream->runtime->private_data;
link_stream = data->link_stream;
link_stream->link_prepared = false;
avs_path_free(data->path);
data->path = NULL;
@@ -347,13 +344,16 @@ static int avs_dai_hda_be_prepare(struct snd_pcm_substream *substream, struct sn
struct snd_soc_pcm_stream *stream_info;
struct hdac_ext_stream *link_stream;
struct hdac_ext_link *link;
struct avs_dma_data *data;
struct hda_codec *codec;
struct hdac_bus *bus;
unsigned int format_val;
unsigned int bits;
int ret;
link_stream = runtime->private_data;
data = snd_soc_dai_get_dma_data(dai, substream);
link_stream = data->link_stream;
if (link_stream->link_prepared)
return 0;
@@ -387,14 +387,12 @@ static int avs_dai_hda_be_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct hdac_ext_stream *link_stream;
struct avs_dma_data *data;
int ret = 0;
dev_dbg(dai->dev, "entry %s cmd=%d\n", __func__, cmd);
data = snd_soc_dai_get_dma_data(dai, substream);
link_stream = substream->runtime->private_data;
switch (cmd) {
case SNDRV_PCM_TRIGGER_RESUME:
@@ -403,7 +401,7 @@ static int avs_dai_hda_be_trigger(struct snd_pcm_substream *substream, int cmd,
fallthrough;
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
snd_hdac_ext_stream_start(link_stream);
snd_hdac_ext_stream_start(data->link_stream);
ret = avs_path_pause(data->path);
if (ret < 0) {
@@ -426,7 +424,7 @@ static int avs_dai_hda_be_trigger(struct snd_pcm_substream *substream, int cmd,
if (ret < 0)
dev_err(dai->dev, "pause BE path failed: %d\n", ret);
snd_hdac_ext_stream_clear(link_stream);
snd_hdac_ext_stream_clear(data->link_stream);
ret = avs_path_reset(data->path);
if (ret < 0)