Bluetooth: Mesh: light_temp_srv added publication

Implemented model publication as specified in Mesh Model Specification
v1.0.1, Section 6.4.4.1. Implemented similar to other publication
services in Bt Mesh. Tested in company own testing environment.

Co-authored-by: Aleksandr Khromykh <[email protected]>
Signed-off-by: Ilija Vorontsov <[email protected]>

Author: 2 people

include/bluetooth/mesh/light_temp_srv.h

@@ -150,6 +150,11 @@ struct bt_mesh_light_temp_srv {
 	const struct bt_mesh_light_ctl_srv *ctl;
 	/** Publish parameters. */
 	struct bt_mesh_model_pub pub;
+	/* Publication buffer */
+	struct net_buf_simple pub_buf;
+	/* Publication data */
+	uint8_t pub_data[BT_MESH_MODEL_BUF_LEN(
+		BT_MESH_LIGHT_CTL_STATUS, BT_MESH_LIGHT_CTL_MSG_MAXLEN_STATUS)];
 	/** Transaction ID tracker for the set messages. */
 	struct bt_mesh_tid_ctx prev_transaction;
 	/** Handler function structure. */

subsys/bluetooth/mesh/light_temp_srv.c

@@ -394,14 +394,29 @@ static void light_temp_srv_reset(struct bt_mesh_light_temp_srv *srv)
 	srv->range.max = BT_MESH_LIGHT_TEMP_MAX;
 }
 
+static int update_handler(const struct bt_mesh_model *model)
+{
+	struct bt_mesh_light_temp_srv *srv = model->rt->user_data;
+	struct bt_mesh_light_temp_status status = { 0 };
+
+	srv->handlers->get(srv, NULL, &status);
+	encode_status(srv->pub.msg, &status);
+
+	return 0;
+}
+
 static int bt_mesh_light_temp_srv_init(const struct bt_mesh_model *model)
 {
 	struct bt_mesh_light_temp_srv *srv = model->rt->user_data;
 	int err;
 
 	srv->model = model;
 	light_temp_srv_reset(srv);
-	net_buf_simple_init(srv->pub.msg, 0);
+
+	srv->pub.msg = &srv->pub_buf;
+	srv->pub.update = update_handler;
+	net_buf_simple_init_with_data(&srv->pub_buf, srv->pub_data,
+				      sizeof(srv->pub_data));
 
 #if IS_ENABLED(CONFIG_BT_SETTINGS) && IS_ENABLED(CONFIG_EMDS)
 	srv->emds_entry.entry.id = EMDS_MODEL_ID(model);