| /* |
| * Copyright (c) 2020 Arm Limited. All rights reserved. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * 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 |
| * |
| * 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 MAILBOX_HPP |
| #define MAILBOX_HPP |
| |
| #include <cstddef> |
| #include <list> |
| |
| namespace Mailbox { |
| |
| class Mailbox { |
| public: |
| Mailbox(); |
| virtual ~Mailbox(); |
| virtual bool sendMessage() = 0; |
| virtual void handleMessage() = 0; |
| virtual bool verifyHardware(); |
| typedef void (*CallbackFptr)(void *userArg); |
| void registerCallback(CallbackFptr callback, void *userArg); |
| void deregisterCallback(CallbackFptr callback, void *userArg); |
| |
| protected: |
| void notify(); |
| uint32_t read32(volatile uint32_t *baseAddr, const uint32_t offset); |
| void write32(volatile uint32_t *baseAddr, const uint32_t offset, const uint32_t value); |
| |
| private: |
| struct Callback { |
| bool operator==(const Callback &b) const; |
| CallbackFptr callback; |
| void *userArg; |
| }; |
| |
| std::list<Callback> callbacks; |
| }; |
| |
| } // namespace Mailbox |
| |
| #endif |