During the hw_params and hw_free stages, we need to map the stream tag and channels in the PCMSyCM registers.
The trigger callback is just a wrapper.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Reviewed-by: Rander Wang rander.wang@intel.com --- sound/soc/sof/intel/hda-dai.c | 72 +++++++++++++++++++++++++++++++++++ sound/soc/sof/intel/hda.h | 12 ++++++ 2 files changed, 84 insertions(+)
diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c index 08de9b614a83..c984fa79b1ef 100644 --- a/sound/soc/sof/intel/hda-dai.c +++ b/sound/soc/sof/intel/hda-dai.c @@ -429,6 +429,78 @@ static const struct snd_soc_dai_ops dmic_dai_ops = { .prepare = non_hda_dai_prepare, };
+int sdw_hda_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *cpu_dai, + int link_id) +{ + struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(cpu_dai, substream->stream); + const struct hda_dai_widget_dma_ops *ops; + struct hdac_ext_stream *hext_stream; + struct snd_sof_dev *sdev; + int ret; + + ret = non_hda_dai_hw_params(substream, params, cpu_dai); + if (ret < 0) { + dev_err(cpu_dai->dev, "%s: non_hda_dai_hw_params failed %d\n", __func__, ret); + return ret; + } + + ops = hda_dai_get_ops(substream, cpu_dai); + sdev = widget_to_sdev(w); + hext_stream = ops->get_hext_stream(sdev, cpu_dai, substream); + + if (!hext_stream) + return -ENODEV; + + /* in the case of SoundWire we need to program the PCMSyCM registers */ + ret = hdac_bus_eml_sdw_map_stream_ch(sof_to_bus(sdev), link_id, cpu_dai->id, + GENMASK(params_channels(params) - 1, 0), + hdac_stream(hext_stream)->stream_tag, + substream->stream); + if (ret < 0) { + dev_err(cpu_dai->dev, "%s: hdac_bus_eml_sdw_map_stream_ch failed %d\n", + __func__, ret); + return ret; + } + + return 0; +} + +int sdw_hda_dai_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai, + int link_id) +{ + struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(cpu_dai, substream->stream); + struct snd_sof_dev *sdev; + int ret; + + ret = hda_dai_hw_free(substream, cpu_dai); + if (ret < 0) { + dev_err(cpu_dai->dev, "%s: non_hda_dai_hw_free failed %d\n", __func__, ret); + return ret; + } + + sdev = widget_to_sdev(w); + + /* in the case of SoundWire we need to reset the PCMSyCM registers */ + ret = hdac_bus_eml_sdw_map_stream_ch(sof_to_bus(sdev), link_id, cpu_dai->id, + 0, 0, substream->stream); + if (ret < 0) { + dev_err(cpu_dai->dev, "%s: hdac_bus_eml_sdw_map_stream_ch failed %d\n", + __func__, ret); + return ret; + } + + return 0; +} + +int sdw_hda_dai_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *cpu_dai) +{ + return hda_dai_trigger(substream, cmd, cpu_dai); +} + static int hda_dai_suspend(struct hdac_bus *bus) { struct snd_soc_pcm_runtime *rtd; diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index 17164fc42501..4f60b722e5d5 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -824,6 +824,18 @@ static inline bool hda_common_check_sdw_irq(struct snd_sof_dev *sdev)
#endif
+int sdw_hda_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *cpu_dai, + int link_id); + +int sdw_hda_dai_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai, + int link_id); + +int sdw_hda_dai_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *cpu_dai); + /* common dai driver */ extern struct snd_soc_dai_driver skl_dai[]; int hda_dsp_dais_suspend(struct snd_sof_dev *sdev);