| Message ID | 20230125141016.29487-1-peter.ujfalusi@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | ASoC: ipc4-topology: use different channel mask for each sdw amp feedback | expand |
On 25/01/2023 16:10, Peter Ujfalusi wrote: > From: Bard Liao <yung-chuan.liao@linux.intel.com> The subject line is missing "SOF", sending v2 right away, sorry. > Currently, we use the same channel mask for aggregated speakers. > It works fine for playback because we duplicate the audio data for all > aggregated speakers. But we need to get audio data from each aggregated > speaker and combine them to the captured audio. So we need to set > non-overlapping channel mask for aggregated ALH DAIs. > > Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> > Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> > Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> > Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> > Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> > --- > sound/soc/sof/ipc4-topology.c | 26 ++++++++++++++++++++++++-- > 1 file changed, 24 insertions(+), 2 deletions(-) > > diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c > index 59f4d42f9011..34586cbb461f 100644 > --- a/sound/soc/sof/ipc4-topology.c > +++ b/sound/soc/sof/ipc4-topology.c > @@ -1203,8 +1203,11 @@ sof_ipc4_prepare_copier_module(struct snd_sof_widget *swidget, > struct sof_ipc4_copier_data *alh_data; > struct sof_ipc4_copier *alh_copier; > struct snd_sof_widget *w; > + u32 ch_count = 0; > u32 ch_mask = 0; > u32 ch_map; > + u32 step; > + u32 mask; > int i; > > blob = (struct sof_ipc4_alh_configuration_blob *)ipc4_copier->copier_config; > @@ -1214,11 +1217,15 @@ sof_ipc4_prepare_copier_module(struct snd_sof_widget *swidget, > /* Get channel_mask from ch_map */ > ch_map = copier_data->base_config.audio_fmt.ch_map; > for (i = 0; ch_map; i++) { > - if ((ch_map & 0xf) != 0xf) > + if ((ch_map & 0xf) != 0xf) { > ch_mask |= BIT(i); > + ch_count++; > + } > ch_map >>= 4; > } > > + step = ch_count / blob->alh_cfg.count; > + mask = GENMASK(step - 1, 0); > /* > * Set each gtw_cfg.node_id to blob->alh_cfg.mapping[] > * for all widgets with the same stream name > @@ -1233,7 +1240,22 @@ sof_ipc4_prepare_copier_module(struct snd_sof_widget *swidget, > alh_copier = (struct sof_ipc4_copier *)dai->private; > alh_data = &alh_copier->data; > blob->alh_cfg.mapping[i].alh_id = alh_data->gtw_cfg.node_id; > - blob->alh_cfg.mapping[i].channel_mask = ch_mask; > + /* > + * Set the same channel mask for playback as the audio data is > + * duplicated for all speakers. For capture, split the channels > + * among the aggregated DAIs. For example, with 4 channels on 2 > + * aggregated DAIs, the channel_mask should be 0x3 and 0xc for the > + * two DAI's. > + * The channel masks used depend on the cpu_dais used in the > + * dailink at the machine driver level, which actually comes from > + * the tables in soc_acpi files depending on the _ADR and devID > + * registers for each codec. > + */ > + if (w->id == snd_soc_dapm_dai_in) > + blob->alh_cfg.mapping[i].channel_mask = ch_mask; > + else > + blob->alh_cfg.mapping[i].channel_mask = mask << (step * i); > + > i++; > } > if (blob->alh_cfg.count > 1) {
diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c index 59f4d42f9011..34586cbb461f 100644 --- a/sound/soc/sof/ipc4-topology.c +++ b/sound/soc/sof/ipc4-topology.c @@ -1203,8 +1203,11 @@ sof_ipc4_prepare_copier_module(struct snd_sof_widget *swidget, struct sof_ipc4_copier_data *alh_data; struct sof_ipc4_copier *alh_copier; struct snd_sof_widget *w; + u32 ch_count = 0; u32 ch_mask = 0; u32 ch_map; + u32 step; + u32 mask; int i; blob = (struct sof_ipc4_alh_configuration_blob *)ipc4_copier->copier_config; @@ -1214,11 +1217,15 @@ sof_ipc4_prepare_copier_module(struct snd_sof_widget *swidget, /* Get channel_mask from ch_map */ ch_map = copier_data->base_config.audio_fmt.ch_map; for (i = 0; ch_map; i++) { - if ((ch_map & 0xf) != 0xf) + if ((ch_map & 0xf) != 0xf) { ch_mask |= BIT(i); + ch_count++; + } ch_map >>= 4; } + step = ch_count / blob->alh_cfg.count; + mask = GENMASK(step - 1, 0); /* * Set each gtw_cfg.node_id to blob->alh_cfg.mapping[] * for all widgets with the same stream name @@ -1233,7 +1240,22 @@ sof_ipc4_prepare_copier_module(struct snd_sof_widget *swidget, alh_copier = (struct sof_ipc4_copier *)dai->private; alh_data = &alh_copier->data; blob->alh_cfg.mapping[i].alh_id = alh_data->gtw_cfg.node_id; - blob->alh_cfg.mapping[i].channel_mask = ch_mask; + /* + * Set the same channel mask for playback as the audio data is + * duplicated for all speakers. For capture, split the channels + * among the aggregated DAIs. For example, with 4 channels on 2 + * aggregated DAIs, the channel_mask should be 0x3 and 0xc for the + * two DAI's. + * The channel masks used depend on the cpu_dais used in the + * dailink at the machine driver level, which actually comes from + * the tables in soc_acpi files depending on the _ADR and devID + * registers for each codec. + */ + if (w->id == snd_soc_dapm_dai_in) + blob->alh_cfg.mapping[i].channel_mask = ch_mask; + else + blob->alh_cfg.mapping[i].channel_mask = mask << (step * i); + i++; } if (blob->alh_cfg.count > 1) {