feat: ble mesh: improve ble mesh deinit when nimble enable

components/bt/esp_ble_mesh/api/core/esp_ble_mesh_common_api.c

@@ -65,7 +65,9 @@ esp_err_t esp_ble_mesh_init(esp_ble_mesh_prov_t *prov, esp_ble_mesh_comp_t *comp
 esp_err_t esp_ble_mesh_deinit(esp_ble_mesh_deinit_param_t *param)
 {
     btc_ble_mesh_prov_args_t arg = {0};
+    SemaphoreHandle_t semaphore = NULL;
     btc_msg_t msg = {0};
+    esp_err_t ret = ESP_OK;
 
     if (param == NULL) {
         return ESP_ERR_INVALID_ARG;
@@ -73,13 +75,36 @@ esp_err_t esp_ble_mesh_deinit(esp_ble_mesh_deinit_param_t *param)
 
     ESP_BLE_HOST_STATUS_CHECK(ESP_BLE_HOST_STATUS_ENABLED);
 
+    // Create a semaphore
+    if ((semaphore = xSemaphoreCreateCounting(1, 0)) == NULL) {
+        BT_ERR("Failed to create semaphore");
+        return ESP_ERR_NO_MEM;
+    }
+
     arg.mesh_deinit.param.erase_flash = param->erase_flash;
+    /* Transport semaphore pointer to BTC layer, and will give the semaphore in the BTC task */
+    arg.mesh_deinit.semaphore = semaphore;
 
     msg.sig = BTC_SIG_API_CALL;
     msg.pid = BTC_PID_PROV;
     msg.act = BTC_BLE_MESH_ACT_DEINIT_MESH;
 
-    return (btc_transfer_context(&msg, &arg, sizeof(btc_ble_mesh_prov_args_t), NULL, NULL)
-            == BT_STATUS_SUCCESS ? ESP_OK : ESP_FAIL);
+    if (btc_transfer_context(&msg, &arg, sizeof(btc_ble_mesh_prov_args_t), NULL, NULL) != BT_STATUS_SUCCESS) {
+        vSemaphoreDelete(semaphore);
+        BT_ERR("Failed to start mesh deinit");
+        return ESP_FAIL;
+    }
+
+    /* Take the Semaphore, wait BLE Mesh de-initialization to finish. */
+    xSemaphoreTake(semaphore, portMAX_DELAY);
+    /* Don't forget to delete the semaphore at the end. */
+    vSemaphoreDelete(semaphore);
+
+    ret = bt_mesh_host_deinit();
+    if (ret != ESP_OK) {
+        return ret;
+    }
+
+    return ESP_OK;
 }
 #endif /* CONFIG_BLE_MESH_DEINIT */

components/bt/esp_ble_mesh/btc/btc_ble_mesh_prov.c

@@ -2268,6 +2268,8 @@ void btc_ble_mesh_prov_call_handler(btc_msg_t *msg)
     case BTC_BLE_MESH_ACT_DEINIT_MESH:
         act = ESP_BLE_MESH_DEINIT_MESH_COMP_EVT;
         param.deinit_mesh_comp.err_code = bt_mesh_deinit((struct bt_mesh_deinit_param *)&arg->mesh_deinit.param);
+        /* Give the semaphore when BLE Mesh de-initialization is finished. */
+        xSemaphoreGive(arg->mesh_deinit.semaphore);
         break;
 #endif /* CONFIG_BLE_MESH_DEINIT */
     default:

components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_prov.h

@@ -309,6 +309,7 @@ typedef union {
     } model_unsub_group_addr;
     struct ble_mesh_deinit_args {
         esp_ble_mesh_deinit_param_t param;
+        SemaphoreHandle_t semaphore;
     } mesh_deinit;
 } btc_ble_mesh_prov_args_t;
 

components/bt/esp_ble_mesh/mesh_core/bluedroid_host/mesh_bearer_adapt.c

@@ -99,6 +99,11 @@ int bt_mesh_host_init(void)
     return 0;
 }
 
+int bt_mesh_host_deinit(void)
+{
+    return 0;
+}
+
 void bt_mesh_hci_init(void)
 {
     const uint8_t *features = controller_get_interface()->get_features_ble()->as_array;

components/bt/esp_ble_mesh/mesh_core/include/mesh_bearer_adapt.h

@@ -659,6 +659,7 @@ struct bt_mesh_gatt_attr {
 }
 
 int bt_mesh_host_init(void);
+int bt_mesh_host_deinit(void);
 
 int bt_le_adv_start(const struct bt_mesh_adv_param *param,
                     const struct bt_mesh_adv_data *ad, size_t ad_len,

components/bt/esp_ble_mesh/mesh_core/nimble_host/mesh_bearer_adapt.c

@@ -82,14 +82,15 @@ static uint8_t bt_mesh_gatts_addr[6];
 
 #endif /* defined(CONFIG_BLE_MESH_NODE) && CONFIG_BLE_MESH_NODE */
 
+static bool g_host_init = false;
+
 int bt_mesh_host_init(void)
 {
-    static bool init = false;
     int rc;
 
-    if (init == true) {
+    if (g_host_init  == true) {
         BT_WARN("Already initialized host for mesh!");
-        return 0;
+        return -EALREADY;
     }
 
     rc = btc_init();
@@ -103,7 +104,30 @@ int bt_mesh_host_init(void)
     }
 
     osi_alarm_init();
-    init = true;
+    g_host_init  = true;
+
+    return 0;
+}
+
+int bt_mesh_host_deinit(void)
+{
+    int rc;
+
+    if (g_host_init == false) {
+        return -EALREADY;
+    }
+
+    osi_alarm_deinit();
+
+    rc = osi_alarm_delete_mux();
+    if (rc != 0) {
+        return -1;
+    }
+
+    btc_deinit();
+
+    g_host_init = false;
+
     return 0;
 }