1 /* 2 * Copyright (C) 2025 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <fcntl.h> 20 #include <unistd.h> 21 22 #include <cstdint> 23 #include <mutex> 24 25 namespace aidl { 26 namespace google { 27 namespace hardware { 28 namespace power { 29 namespace impl { 30 namespace pixel { 31 32 class TaskRampupMultNode { 33 public: getInstance()34 static std::shared_ptr<TaskRampupMultNode> getInstance() { 35 static std::shared_ptr<TaskRampupMultNode> instance(new TaskRampupMultNode()); 36 return instance; 37 } 38 39 bool updateTaskRampupMult(int32_t tid, int32_t val); 40 bool isValid() const; 41 42 ~TaskRampupMultNode(); 43 44 private: 45 // singleton 46 TaskRampupMultNode(); 47 TaskRampupMultNode(TaskRampupMultNode const &) = delete; 48 TaskRampupMultNode &operator=(TaskRampupMultNode const &) = delete; 49 50 std::mutex mMutex; 51 int mTaskRampupFd = -1; 52 }; 53 54 } // namespace pixel 55 } // namespace impl 56 } // namespace power 57 } // namespace hardware 58 } // namespace google 59 } // namespace aidl 60