The existing code relies on conversions from cpu_dai to the sdev structure pointer based on the cpu_dai component. This works fine for HDaudio but will not work for SoundWire DAIs which are registered by a different component. That's a problem preventing reuse of the HDaudio DMA stream allocation for SoundWire DAIs starting with the LunarLake platform.
This patch introduces a set of helpers to perform the conversion, and an indirect way of retrieving the sdev pointer based on the swidget->comp intermediate pointer.
Suggested-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Rander Wang rander.wang@intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com --- sound/soc/sof/intel/hda-dai.c | 40 ++++++++++++++++++++++++++--------- 1 file changed, 30 insertions(+), 10 deletions(-)
diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c index 61eb25cfdbe1..7e71cce7f531 100644 --- a/sound/soc/sof/intel/hda-dai.c +++ b/sound/soc/sof/intel/hda-dai.c @@ -27,20 +27,26 @@ static bool hda_use_tplg_nhlt; module_param_named(sof_use_tplg_nhlt, hda_use_tplg_nhlt, bool, 0444); MODULE_PARM_DESC(sof_use_tplg_nhlt, "SOF topology nhlt override");
+static struct snd_sof_dev *widget_to_sdev(struct snd_soc_dapm_widget *w) +{ + struct snd_sof_widget *swidget = w->dobj.private; + struct snd_soc_component *component = swidget->scomp; + + return snd_soc_component_get_drvdata(component); +} + int hda_dai_config(struct snd_soc_dapm_widget *w, unsigned int flags, struct snd_sof_dai_config_data *data) { struct snd_sof_widget *swidget = w->dobj.private; const struct sof_ipc_tplg_ops *tplg_ops; - struct snd_soc_component *component; struct snd_sof_dev *sdev; int ret;
if (!swidget) return 0;
- component = swidget->scomp; - sdev = snd_soc_component_get_drvdata(component); + sdev = widget_to_sdev(w); tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->dai_config) { @@ -57,14 +63,24 @@ int hda_dai_config(struct snd_soc_dapm_widget *w, unsigned int flags,
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
+static struct snd_sof_dev *dai_to_sdev(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai) +{ + struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(cpu_dai, substream->stream); + + return widget_to_sdev(w); +} + static const struct hda_dai_widget_dma_ops * hda_dai_get_ops(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai) { struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(cpu_dai, substream->stream); - struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(cpu_dai->component); struct snd_sof_widget *swidget = w->dobj.private; + struct snd_sof_dev *sdev; struct snd_sof_dai *sdai;
+ sdev = widget_to_sdev(w); + /* * The swidget parameter of hda_select_dai_widget_ops() is ignored in * case of DSPless mode @@ -96,14 +112,16 @@ static int hda_link_dma_cleanup(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai, struct snd_soc_dai *codec_dai) { - struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(cpu_dai->component); const struct hda_dai_widget_dma_ops *ops = hda_dai_get_ops(substream, cpu_dai); struct hdac_stream *hstream = &hext_stream->hstream; struct hdac_bus *bus = hstream->bus; struct sof_intel_hda_stream *hda_stream; struct hdac_ext_link *hlink; + struct snd_sof_dev *sdev; int stream_tag;
+ sdev = dai_to_sdev(substream, cpu_dai); + hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, codec_dai->component->name); if (!hlink) return -EINVAL; @@ -140,7 +158,7 @@ static int hda_link_dma_hw_params(struct snd_pcm_substream *substream, unsigned int link_bps; int stream_tag;
- sdev = snd_soc_component_get_drvdata(cpu_dai->component); + sdev = dai_to_sdev(substream, cpu_dai); bus = sof_to_bus(sdev);
hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, codec_dai->component->name); @@ -190,11 +208,11 @@ static int hda_link_dma_hw_params(struct snd_pcm_substream *substream,
static int hda_dai_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai) { - struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(cpu_dai->component); const struct hda_dai_widget_dma_ops *ops = hda_dai_get_ops(substream, cpu_dai); struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); struct hdac_ext_stream *hext_stream; + struct snd_sof_dev *sdev = dai_to_sdev(substream, cpu_dai);
if (!ops) { dev_err(sdev->dev, "DAI widget ops not set\n"); @@ -213,11 +231,11 @@ static int hda_dai_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(dai, substream->stream); - struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(dai->component); const struct hda_dai_widget_dma_ops *ops = hda_dai_get_ops(substream, dai); struct hdac_ext_stream *hext_stream; struct snd_sof_dai_config_data data = { 0 }; unsigned int flags = SOF_DAI_CONFIG_FLAGS_HW_PARAMS; + struct snd_sof_dev *sdev = widget_to_sdev(w); int ret;
if (!ops) { @@ -255,16 +273,18 @@ static int hda_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_d */ static int hda_dai_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { - struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(dai->component); const struct hda_dai_widget_dma_ops *ops = hda_dai_get_ops(substream, dai); struct hdac_ext_stream *hext_stream; struct snd_soc_pcm_runtime *rtd; struct snd_soc_dai *codec_dai; + struct snd_sof_dev *sdev; int ret;
dev_dbg(dai->dev, "cmd=%d dai %s direction %d\n", cmd, dai->name, substream->stream);
+ sdev = dai_to_sdev(substream, dai); + hext_stream = ops->get_hext_stream(sdev, dai, substream); if (!hext_stream) return -EINVAL; @@ -344,7 +364,7 @@ static int hda_dai_suspend(struct hdac_bus *bus) codec_dai = asoc_rtd_to_codec(rtd, 0); w = snd_soc_dai_get_widget(cpu_dai, hdac_stream(hext_stream)->direction); swidget = w->dobj.private; - sdev = snd_soc_component_get_drvdata(swidget->scomp); + sdev = widget_to_sdev(w); sdai = swidget->private; ops = sdai->platform_private;