copier: store gateway config in copier_data

Calculate actual size of copier module gateway config. Copy
and store it in copier_data. It needs to be available even
after copier is created e.g. during SET_PIPELINE_STATE IPC
when dai_config_dma_channel() is called second time and
DMA config is used to assing dma_channel_id value.

Signed-off-by: Ievgen Ganakov <ievgen.ganakov@intel.com>

src/audio/copier/copier.c

@@ -64,6 +64,8 @@ static int copier_init(struct processing_module *mod)
 	struct module_data *md = &mod->priv;
 	struct ipc4_copier_module_cfg *copier = (struct ipc4_copier_module_cfg *)md->cfg.init_data;
 	struct comp_ipc_config *config = &dev->ipc_config;
+	void *gtw_cfg;
+	size_t gtw_cfg_size;
 	int i, ret = 0;
 
 	cd = rzalloc(SOF_MEM_ZONE_RUNTIME, 0, SOF_MEM_CAPS_RAM, sizeof(*cd));
@@ -78,7 +80,33 @@ static int copier_init(struct processing_module *mod)
 	 */
 	if (memcpy_s(&cd->config, sizeof(cd->config), copier, sizeof(*copier)) < 0) {
 		ret = -EINVAL;
-		goto error;
+		goto error_cd;
+	}
+
+	/* Allocate memory and store gateway_cfg in runtime. Gateway cfg has to
+	 * be kept even after copier is created e.g. during SET_PIPELINE_STATE
+	 * IPC when dai_config_dma_channel() is called second time and DMA
+	 * config is used to assign dma_channel_id value.
+	 */
+	if (copier->gtw_cfg.config_length) {
+		gtw_cfg_size = copier->gtw_cfg.config_length << 2;
+		gtw_cfg = rzalloc(SOF_MEM_ZONE_RUNTIME, 0, SOF_MEM_CAPS_RAM,
+				  gtw_cfg_size);
+		if (!gtw_cfg) {
+			ret = -ENOMEM;
+			goto error_cd;
+		}
+
+		ret = memcpy_s(gtw_cfg, gtw_cfg_size, &copier->gtw_cfg.config_data,
+			       gtw_cfg_size);
+		if (ret < 0) {
+			comp_err(dev, "Unable to copy gateway config from copier blob");
+			goto error;
+		}
+
+		cd->gtw_cfg = gtw_cfg;
+	} else {
+		cd->gtw_cfg = NULL;
 	}
 
 	for (i = 0; i < IPC4_COPIER_MODULE_OUTPUT_PINS_COUNT; i++)
@@ -146,6 +174,8 @@ static int copier_init(struct processing_module *mod)
 	dev->state = COMP_STATE_READY;
 	return 0;
 error:
+	rfree(gtw_cfg);
+error_cd:
 	rfree(cd);
 	return ret;
 }
@@ -170,6 +200,8 @@ static int copier_free(struct processing_module *mod)
 		break;
 	}
 
+	if (cd)
+		rfree(cd->gtw_cfg);
 	rfree(cd);
 
 	return 0;

src/include/ipc4/copier.h

@@ -155,7 +155,7 @@ struct ipc4_copier_module_cfg {
 	/* audio format for output pin 0 */
 	struct ipc4_audio_format out_fmt;
 	uint32_t copier_feature_mask;
-	struct ipc4_copier_gateway_cfg  gtw_cfg;
+	struct ipc4_copier_gateway_cfg gtw_cfg;
 } __attribute__((packed, aligned(4)));
 
 enum ipc4_copier_module_config_params {
@@ -242,6 +242,7 @@ struct copier_data {
 	 * from the IPC data.
 	 */
 	struct ipc4_copier_module_cfg config;
+	void *gtw_cfg;
 	struct comp_dev *endpoint[IPC4_COPIER_MODULE_OUTPUT_PINS_COUNT];
 	struct comp_buffer *endpoint_buffer[IPC4_COPIER_MODULE_OUTPUT_PINS_COUNT];
 	uint32_t endpoint_num;