| /* |
| * |
| * Copyright (c) 2020 Project CHIP Authors |
| * Copyright (c) 2019 Nest Labs, Inc. |
| * All rights reserved. |
| * |
| * 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. |
| */ |
| |
| /** |
| * @file |
| * Provides a generic implementation of ThreadStackManager features |
| * for use on platforms that use OpenThread with LwIP. |
| */ |
| |
| #pragma once |
| |
| #include <platform/OpenThread/GenericThreadStackManagerImpl_OpenThread.h> |
| |
| #include <lwip/netif.h> |
| #include <lwip/tcpip.h> |
| |
| #include <openthread/message.h> |
| |
| namespace chip { |
| namespace DeviceLayer { |
| |
| class ThreadStackManagerImpl; |
| |
| namespace Internal { |
| |
| /** |
| * Provides a generic implementation of ThreadStackManager features that works in conjunction |
| * with OpenThread and LwIP. |
| * |
| * This template contains implementations of select features from the ThreadStackManager abstract |
| * interface that are suitable for use on devices that employ OpenThread and LwIP together. It is |
| * intended to be inherited, directly or indirectly, by the ThreadStackManagerImpl class, which |
| * also appears as the template's ImplClass parameter. |
| */ |
| template <class ImplClass> |
| class GenericThreadStackManagerImpl_OpenThread_LwIP : public GenericThreadStackManagerImpl_OpenThread<ImplClass> |
| { |
| public: |
| // ===== Platform-specific methods directly callable by the application. |
| |
| struct netif * ThreadNetIf() const; |
| |
| protected: |
| // ===== Methods that implement the ThreadStackManager abstract interface. |
| |
| void _OnPlatformEvent(const ChipDeviceEvent * event); |
| |
| // ===== Members available to the implementation subclass. |
| |
| CHIP_ERROR DoInit(otInstance * otInst); |
| void UpdateThreadInterface(bool addrChange); |
| |
| private: |
| // ===== Private members for use by this class only. |
| |
| struct netif * mNetIf; |
| bool mAddrAssigned[LWIP_IPV6_NUM_ADDRESSES]; |
| |
| static err_t DoInitThreadNetIf(struct netif * netif); |
| static err_t SendPacket(struct netif * netif, struct pbuf * pkt, const struct ip6_addr * ipaddr); |
| static void ReceivePacket(otMessage * pkt, void * context); |
| |
| inline ImplClass * Impl() { return static_cast<ImplClass *>(this); } |
| }; |
| |
| // Instruct the compiler to instantiate the template only when explicitly told to do so. |
| extern template class GenericThreadStackManagerImpl_OpenThread_LwIP<ThreadStackManagerImpl>; |
| |
| template <class ImplClass> |
| inline struct netif * GenericThreadStackManagerImpl_OpenThread_LwIP<ImplClass>::ThreadNetIf() const |
| { |
| return mNetIf; |
| } |
| |
| } // namespace Internal |
| } // namespace DeviceLayer |
| } // namespace chip |