ASoC: SOF: ipc4-topology: Add prepare op for DAI type widgets

Define the prepare op for the DAI type widgets for IPC4.
The prepare op is responsible for choosing the input/output audio
formats for these widgets based on the runtime PCM params, assigning the
instance ID and updating the total memory usage for the pipelines these
widgets belong to.
Co-developed-by: Rander Wang <rander.wang@linux.intel.com>
Signed-off-by: Rander Wang <rander.wang@linux.intel.com>
Co-developed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220609032643.916882-7-ranjani.sridharan@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/ipc4-topology.c

@@ -706,8 +706,13 @@ static void sof_ipc4_unprepare_copier_module(struct snd_sof_widget *swidget)
 	pipeline = pipe_widget->private;
 	pipeline->mem_usage = 0;
 
-	if (WIDGET_IS_AIF(swidget->id))
+	if (WIDGET_IS_AIF(swidget->id)) {
 		ipc4_copier = swidget->private;
+	} else if (WIDGET_IS_DAI(swidget->id)) {
+		struct snd_sof_dai *dai = swidget->private;
+
+		ipc4_copier = dai->private;
+	}
 
 	if (ipc4_copier) {
 		kfree(ipc4_copier->ipc_config_data);
@@ -776,6 +781,34 @@ sof_ipc4_prepare_copier_module(struct snd_sof_widget *swidget,
 		ref_params = fe_params;
 		break;
 	}
+	case snd_soc_dapm_dai_in:
+	case snd_soc_dapm_dai_out:
+	{
+		struct snd_sof_dai *dai = swidget->private;
+
+		ipc4_copier = (struct sof_ipc4_copier *)dai->private;
+		copier_data = &ipc4_copier->data;
+		available_fmt = &ipc4_copier->available_fmt;
+		if (dir == SNDRV_PCM_STREAM_CAPTURE) {
+			available_fmt->ref_audio_fmt = available_fmt->out_audio_fmt;
+			ref_audio_fmt_size = sizeof(struct sof_ipc4_audio_format);
+
+			/*
+			 * modify the input params for the dai copier as it only supports
+			 * 32-bit always
+			 */
+			fmt = hw_param_mask(pipeline_params, SNDRV_PCM_HW_PARAM_FORMAT);
+			snd_mask_none(fmt);
+			snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S32_LE);
+		} else {
+			available_fmt->ref_audio_fmt = &available_fmt->base_config->audio_fmt;
+			ref_audio_fmt_size = sizeof(struct sof_ipc4_base_module_cfg);
+		}
+
+		ref_params = pipeline_params;
+
+		break;
+	}
 	default:
 		dev_err(sdev->dev, "unsupported type %d for copier %s",
 			swidget->id, swidget->widget->name);
@@ -879,9 +912,13 @@ static const struct sof_ipc_tplg_widget_ops tplg_ipc4_widget_ops[SND_SOC_DAPM_TY
 				  sof_ipc4_prepare_copier_module,
 				  sof_ipc4_unprepare_copier_module},
 	[snd_soc_dapm_dai_in] = {sof_ipc4_widget_setup_comp_dai, sof_ipc4_widget_free_comp_dai,
-				 dai_token_list, ARRAY_SIZE(dai_token_list), NULL, NULL, NULL},
+				 dai_token_list, ARRAY_SIZE(dai_token_list), NULL,
+				 sof_ipc4_prepare_copier_module,
+				 sof_ipc4_unprepare_copier_module},
 	[snd_soc_dapm_dai_out] = {sof_ipc4_widget_setup_comp_dai, sof_ipc4_widget_free_comp_dai,
-				  dai_token_list, ARRAY_SIZE(dai_token_list), NULL, NULL, NULL},
+				  dai_token_list, ARRAY_SIZE(dai_token_list), NULL,
+				  sof_ipc4_prepare_copier_module,
+				  sof_ipc4_unprepare_copier_module},
 	[snd_soc_dapm_scheduler] = {sof_ipc4_widget_setup_comp_pipeline, sof_ipc4_widget_free_comp,
 				    pipeline_token_list, ARRAY_SIZE(pipeline_token_list), NULL,
 				    NULL, NULL},