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ASoC: SOF: Intel: add helper for link DMA cleanups

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We do the same operations from different places, add a helper to
enforce consistency and make the programming sequences clearer.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220421203201.1550328-14-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2022-04-21 15:32:00 -05:00 committed by Mark Brown
parent 722cbbfaed
commit 880924cad1
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 45 additions and 67 deletions
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112
sound/soc/sof/intel/hda-dai.c
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@ -128,6 +128,40 @@ hda_link_stream_assign(struct hdac_bus *bus,
return res;
}
static int hda_link_dma_cleanup(struct snd_pcm_substream *substream,
struct hdac_stream *hstream,
struct snd_soc_dai *cpu_dai,
struct snd_soc_dai *codec_dai,
bool trigger_suspend_stop)
{
struct hdac_ext_stream *hext_stream = snd_soc_dai_get_dma_data(cpu_dai, substream);
struct hdac_bus *bus = hstream->bus;
struct sof_intel_hda_stream *hda_stream;
struct hdac_ext_link *link;
int stream_tag;
link = snd_hdac_ext_bus_get_link(bus, codec_dai->component->name);
if (!link)
return -EINVAL;
if (trigger_suspend_stop)
snd_hdac_ext_link_stream_clear(hext_stream);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
stream_tag = hdac_stream(hext_stream)->stream_tag;
snd_hdac_ext_link_clear_stream_id(link, stream_tag);
}
snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
snd_hdac_ext_stream_release(hext_stream, HDAC_EXT_STREAM_TYPE_LINK);
hext_stream->link_prepared = 0;
/* free the host DMA channel reserved by hostless streams */
hda_stream = hstream_to_sof_hda_stream(hext_stream);
hda_stream->host_reserved = 0;
return 0;
}
static int hda_link_dma_params(struct hdac_ext_stream *hext_stream,
struct hda_pipe_params *params)
{
@ -221,13 +255,7 @@ static int hda_link_dma_trigger(struct snd_pcm_substream *substream, int cmd)
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
struct hdac_ext_stream *hext_stream = snd_soc_dai_get_dma_data(cpu_dai, substream);
struct hdac_ext_link *link;
struct hdac_bus *bus = hstream->bus;
int stream_tag;
link = snd_hdac_ext_bus_get_link(bus, codec_dai->component->name);
if (!link)
return -EINVAL;
int ret;
dev_dbg(cpu_dai->dev, "%s: cmd=%d\n", __func__, cmd);
if (!hext_stream)
@ -240,15 +268,9 @@ static int hda_link_dma_trigger(struct snd_pcm_substream *substream, int cmd)
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
snd_hdac_ext_link_stream_clear(hext_stream);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
stream_tag = hdac_stream(hext_stream)->stream_tag;
snd_hdac_ext_link_clear_stream_id(link, stream_tag);
}
snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
snd_hdac_ext_stream_release(hext_stream, HDAC_EXT_STREAM_TYPE_LINK);
hext_stream->link_prepared = 0;
ret = hda_link_dma_cleanup(substream, hstream, cpu_dai, codec_dai, true);
if (ret < 0)
return ret;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
@ -267,36 +289,13 @@ static int hda_link_dma_hw_free(struct snd_pcm_substream *substream)
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
struct sof_intel_hda_stream *hda_stream;
struct hdac_bus *bus = hstream->bus;
struct hdac_ext_stream *hext_stream;
struct hdac_ext_link *link;
int stream_tag;
hext_stream = snd_soc_dai_get_dma_data(cpu_dai, substream);
if (!hext_stream) {
dev_dbg(cpu_dai->dev, "%s: hext_stream is not assigned\n", __func__);
return -EINVAL;
}
if (!hext_stream)
return 0;
link = snd_hdac_ext_bus_get_link(bus, codec_dai->component->name);
if (!link)
return -EINVAL;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
stream_tag = hdac_stream(hext_stream)->stream_tag;
snd_hdac_ext_link_clear_stream_id(link, stream_tag);
}
snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
snd_hdac_ext_stream_release(hext_stream, HDAC_EXT_STREAM_TYPE_LINK);
hext_stream->link_prepared = 0;
/* free the host DMA channel reserved by hostless streams */
hda_stream = hstream_to_sof_hda_stream(hext_stream);
hda_stream->host_reserved = 0;
return 0;
return hda_link_dma_cleanup(substream, hstream, cpu_dai, codec_dai, false);
}
static int hda_dai_widget_update(struct snd_soc_dapm_widget *w,
@ -457,15 +456,11 @@ static int hda_dai_suspend(struct hdac_bus *bus)
{
struct snd_soc_pcm_runtime *rtd;
struct hdac_ext_stream *hext_stream;
struct hdac_ext_link *link;
struct hdac_stream *s;
const char *name;
int stream_tag;
int ret;
/* set internal flag for BE */
list_for_each_entry(s, &bus->stream_list, list) {
struct sof_intel_hda_stream *hda_stream;
hext_stream = stream_to_hdac_ext_stream(s);
@ -482,34 +477,17 @@ static int hda_dai_suspend(struct hdac_bus *bus)
rtd = asoc_substream_to_rtd(hext_stream->link_substream);
cpu_dai = asoc_rtd_to_cpu(rtd, 0);
codec_dai = asoc_rtd_to_codec(rtd, 0);
name = codec_dai->component->name;
link = snd_hdac_ext_bus_get_link(bus, name);
if (!link)
return -EINVAL;
/*
* we don't need to call snd_hdac_ext_link_stream_clear(he_stream)
* since we can only reach this case in the pause_push state, and
* the TRIGGER_PAUSE_PUSH already stops the DMA
*/
if (hdac_stream(hext_stream)->direction == SNDRV_PCM_STREAM_PLAYBACK) {
stream_tag = hdac_stream(hext_stream)->stream_tag;
snd_hdac_ext_link_clear_stream_id(link, stream_tag);
}
snd_soc_dai_set_dma_data(cpu_dai, hext_stream->link_substream, NULL);
snd_hdac_ext_stream_release(hext_stream, HDAC_EXT_STREAM_TYPE_LINK);
hext_stream->link_prepared = 0;
/* free the host DMA channel reserved by hostless streams */
hda_stream = hstream_to_sof_hda_stream(hext_stream);
hda_stream->host_reserved = 0;
ret = hda_link_dma_cleanup(hext_stream->link_substream, s,
cpu_dai, codec_dai, false);
if (ret < 0)
return ret;
/* for consistency with TRIGGER_SUSPEND we free DAI resources */
ret = hda_dai_hw_free_ipc(hdac_stream(hext_stream)->direction, cpu_dai);
if (ret < 0)
return ret;
}
}
return 0;