components/bt: Shutdown Bluetooth before esp_restart.

components/bt/controller/bt.c

@@ -1439,6 +1439,23 @@ esp_err_t esp_bt_controller_deinit(void)
     return ESP_OK;
 }
 
+static void bt_shutdown(void)
+{
+    esp_err_t ret = ESP_OK;
+    ESP_LOGD(BTDM_LOG_TAG, "stop/deinit bt");
+
+    ret = esp_bt_controller_disable();
+    if (ESP_OK != ret) {
+        ESP_LOGW(BTDM_LOG_TAG, "controller disable ret=%d", ret);
+    }
+    ret = esp_bt_controller_deinit();
+    if (ESP_OK != ret) {
+        ESP_LOGW(BTDM_LOG_TAG, "controller deinit ret=%d", ret);
+    }
+    return;
+}
+
+
 esp_err_t esp_bt_controller_enable(esp_bt_mode_t mode)
 {
     int ret;
@@ -1488,6 +1505,10 @@ esp_err_t esp_bt_controller_enable(esp_bt_mode_t mode)
     }
 
     btdm_controller_status = ESP_BT_CONTROLLER_STATUS_ENABLED;
+    ret = esp_register_shutdown_handler(bt_shutdown);
+    if (ret != ESP_OK) {
+        ESP_LOGW(BTDM_LOG_TAG, "Register shutdown handler failed, ret = 0x%x", ret);
+    }
 
     return ESP_OK;
 }
@@ -1515,6 +1536,7 @@ esp_err_t esp_bt_controller_disable(void)
 
     esp_phy_disable();
     btdm_controller_status = ESP_BT_CONTROLLER_STATUS_INITED;
+    esp_unregister_shutdown_handler(bt_shutdown);
 
 #ifdef CONFIG_PM_ENABLE
     if (!s_btdm_allow_light_sleep) {

components/esp_system/system_api.c

@@ -17,7 +17,7 @@
 #endif
 
 
-#define SHUTDOWN_HANDLERS_NO 3
+#define SHUTDOWN_HANDLERS_NO 4
 static shutdown_handler_t shutdown_handlers[SHUTDOWN_HANDLERS_NO];
 
 esp_err_t esp_register_shutdown_handler(shutdown_handler_t handler)