audio: dai: Pass bespoke config size through dai_set_config chain

Update dai_set_config() to accept and propagate the size parameter
for bespoke DAI configuration data, matching the updated Zephyr
DAI driver API.

Changes:
- Add size_t size parameter to dai_set_config() function
- Update dai_set_config() signature in dai-zephyr.h header
- Pass copier_cfg->gtw_cfg.config_length as size in IPC4 dai_config()
- Forward size parameter to dai_config_set() Zephyr driver API call

This change completes the integration with the new Zephyr DAI API
that requires explicit size validation for bespoke configuration
blobs, enabling proper bounds checking in DAI drivers.

Signed-off-by: Adrian Bonislawski <adrian.bonislawski@intel.com>

Author: abonislawski

src/audio/dai-zephyr.c

@@ -143,7 +143,7 @@ static int dai_trigger_op(struct dai *dai, int cmd, int direction)
 
 /* called from src/ipc/ipc3/handler.c and src/ipc/ipc4/dai.c */
 __cold int dai_set_config(struct dai *dai, struct ipc_config_dai *common_config,
-			  const void *spec_config)
+			  const void *spec_config, size_t size)
 {
 	const struct device *dev = dai->dev;
 	const struct sof_ipc_dai_config *sof_cfg = spec_config;
@@ -198,7 +198,7 @@ __cold int dai_set_config(struct dai *dai, struct ipc_config_dai *common_config,
 		return -EINVAL;
 	}
 
-	return dai_config_set(dev, &cfg, cfg_params);
+	return dai_config_set(dev, &cfg, cfg_params, size);
 }
 
 /* called from ipc/ipc3/dai.c */

src/include/sof/lib/dai-legacy.h

@@ -419,7 +419,7 @@ void dai_put(struct dai *dai);
  * \brief Digital Audio interface formatting
  */
 static inline int dai_set_config(struct dai *dai, struct ipc_config_dai *config,
-				 const void *spec_config)
+				 const void *spec_config, size_t size)
 {
 	return dai->drv->ops.set_config(dai, config, spec_config);
 }

src/include/sof/lib/dai-zephyr.h

@@ -237,7 +237,8 @@ void dai_put(struct dai *dai);
 /**
  * \brief Digital Audio interface formatting
  */
-int dai_set_config(struct dai *dai, struct ipc_config_dai *config, const void *spec_config);
+int dai_set_config(struct dai *dai, struct ipc_config_dai *config,
+		   const void *spec_config, size_t size);
 
 /**
  * \brief Get Digital Audio interface DMA Handshake

src/ipc/ipc3/handler.c

@@ -579,7 +579,7 @@ static int ipc_dai_config_set(struct sof_ipc_dai_config *config,
 	}
 
 	/* configure DAI */
-	ret = dai_set_config(dai, config_dai, config);
+	ret = dai_set_config(dai, config_dai, config, sizeof(*config));
 	dai_put(dai); /* free ref immediately */
 	if (ret < 0) {
 		ipc_cmd_err(&ipc_tr, "ipc: dai %d,%d config failed %d", config->type,

src/ipc/ipc4/dai.c

@@ -396,7 +396,8 @@ __cold int dai_config(struct dai_data *dd, struct comp_dev *dev,
 	if (ret < 0)
 		return ret;
 
-	return dai_set_config(dd->dai, common_config, copier_cfg->gtw_cfg.config_data);
+	return dai_set_config(dd->dai, common_config,
+			      copier_cfg->gtw_cfg.config_data, copier_cfg->gtw_cfg.config_length);
 }
 
 #if CONFIG_ZEPHYR_NATIVE_DRIVERS