topology: add uuid token handling to process components

Parse the uuid for process components, then pass the generic process
component type SOF_COMP_PROCESS and the uuid entry address to the
firmware for the process component creation.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>

Author: keyonjie

sound/soc/sof/topology.c

@@ -461,6 +461,16 @@ static enum sof_comp_type find_process_comp_type(enum sof_ipc_process_type type)
 	return SOF_COMP_NONE;
 }
 
+/* get the uuid entry address from the uuid dictionary */
+static int sof_get_uid_entry(guid_t *uuid)
+{
+	/*
+	 * will be implemented once the uuid dictionary is available
+	 * from the FW extended manifest.
+	 */
+	return 0;
+}
+
 /*
  * Topology Token Parsing.
  * New tokens should be added to headers and parsing tables below.
@@ -492,6 +502,17 @@ static int get_token_u16(void *elem, void *object, u32 offset, u32 size)
 	return 0;
 }
 
+static int get_token_uuid(void *elem, void *object, u32 offset, u32 size)
+{
+	struct snd_soc_tplg_vendor_uuid_elem *velem = elem;
+	u32 *val = (u32 *)((u8 *)object + offset);
+	guid_t uuid;
+
+	guid_copy(&uuid, (guid_t *)velem->uuid);
+	*val = sof_get_uid_entry(&uuid);
+	return 0;
+}
+
 static int get_token_comp_format(void *elem, void *object, u32 offset, u32 size)
 {
 	struct snd_soc_tplg_vendor_string_elem *velem = elem;
@@ -725,6 +746,13 @@ static const struct sof_topology_token core_tokens[] = {
 		offsetof(struct sof_ipc_comp, core), 0},
 };
 
+/* widget */
+static const struct sof_topology_token uuid_tokens[] = {
+	{SOF_TKN_COMP_UUID,
+		SND_SOC_TPLG_TUPLE_TYPE_UUID, get_token_uuid,
+		offsetof(struct sof_ipc_comp, uid), 0},
+};
+
 /*
  * DMIC PDM Tokens
  * SOF_TKN_INTEL_DMIC_PDM_CTRL_ID should be the first token
@@ -2177,6 +2205,16 @@ static int sof_process_load(struct snd_soc_component *scomp, int index,
 		goto out;
 	}
 
+	/* get the process uuid token */
+	ret = sof_parse_tokens(scomp, &process->comp, uuid_tokens,
+			       ARRAY_SIZE(uuid_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(scomp->dev, "error: parse process tokens failed %d\n",
+			le32_to_cpu(private->size));
+		return ret;
+	}
+
 	/* configure iir IPC message */
 	process->comp.hdr.size = ipc_size;
 	process->comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
@@ -2185,6 +2223,12 @@ static int sof_process_load(struct snd_soc_component *scomp, int index,
 	process->comp.pipeline_id = index;
 	process->config.hdr.size = sizeof(process->config);
 
+	if (process->comp.uid) {
+		dev_dbg(scomp->dev, "tplg: process component, uuid address: 0x%x\n",
+			process->comp.uid);
+		process->comp.type = SOF_COMP_PROCESS;
+	}
+
 	ret = sof_parse_tokens(scomp, &process->config, comp_tokens,
 			       ARRAY_SIZE(comp_tokens), private->array,
 			       le32_to_cpu(private->size));