Merge branch 'feature/add_apis_to_compatible_with_esp_netif' into 'master'

tcpip_adapter: add header file and wrapper APIs to make code compatible with "esp_netif"

See merge request sdk/ESP8266_RTOS_SDK!1273

Author: donghengqaz

components/tcpip_adapter/esp_netif.c

@@ -0,0 +1,27 @@
+// Copyright 2020-2021 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "esp_netif.h"
+
+esp_err_t esp_netif_init(void)
+{
+    tcpip_adapter_init();
+
+    return ESP_OK;
+}
+
+esp_err_t esp_netif_deinit(void)
+{
+    return ESP_OK;
+}

components/tcpip_adapter/include/esp_netif.h

@@ -0,0 +1,58 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include <stdint.h>
+#include "sdkconfig.h"
+#include "esp_wifi_types.h"
+#include "tcpip_adapter.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup ESP_NETIF_INIT_API ESP-NETIF Initialization API
+ * @brief Add these APIs to make code compatible with esp-idf's newer branch
+ *
+ */
+
+/** @addtogroup ESP_NETIF_INIT_API
+ * @{
+ */
+
+/**
+ * @brief  Wrapper API to call "tcpip_adapter_init()" really
+ *
+ * @return
+ *         - ESP_OK on success
+
+ * @note This function should be called exactly once from application code, when the application starts up.
+ */
+esp_err_t esp_netif_init(void);
+
+/**
+ * @brief  Empty function
+ *
+ *          Note: Deinitialization is not supported yet
+ *
+ * @return
+ *         - ESP_OK on success
+ */
+esp_err_t esp_netif_deinit(void);
+
+#ifdef __cplusplus
+}
+#endif