IDF master 1d7068e4b (#5257)

esp-dsp: master 7cc5073
esp-face: master 420fc7e
esp-rainmaker: f1b82c7
esp32-camera: master 7a06a7e
esp_littlefs: master b58f00c

tools/sdk/esp32s2/include/lwip/port/esp32/include/netif/openthreadif.h

@@ -0,0 +1,52 @@
+// Copyright 2021 Espressif Systems (Shanghai) CO 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
+
+#ifndef _OPENTHREAD_LWIP_IF_H_
+#define _OPENTHREAD_LWIP_IF_H_
+
+#include "lwip/netif.h"
+#include "lwip/err.h"
+#include "lwip/ip6.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief This function initializes the OpenThread lwIP network interface.
+ *
+ * @param[in] netif     The lwIP interface to initialize
+ *
+ * @return
+ *      - ERR_OK
+ *
+ */
+err_t openthread_netif_init(struct netif *netif);
+
+/**
+ * @brief This function sends the buffer to the lwIP network interface
+ *
+ * @param[in] netif     The lwIP interface to send to.
+ * @param[in] buffer    The packet to send.
+ * @param[in] len       The length of the buffer.
+ * @param[in] eb        Unused.
+ *
+ */
+void openthread_netif_input(void *netif, void *buffer, size_t len, void *eb);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _OPENTHREAD_LWIP_IF_H_ */