1 /* 2 * Copyright (c) 2021-2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef HDI_SESSION_H 17 #define HDI_SESSION_H 18 #include <unordered_map> 19 #include <vector> 20 #include <memory> 21 #include "common/include/display_common.h" 22 #include "display_log.h" 23 #include "hdi_device_interface.h" 24 #include "hdi_display.h" 25 #include "hdi_netlink_monitor.h" 26 #include "v1_0/display_composer_type.h" 27 #include <mutex> 28 29 namespace OHOS { 30 namespace HDI { 31 namespace DISPLAY { 32 class HdiSession { 33 public: 34 void Init(); 35 static HdiSession &GetInstance(); 36 37 template<typename... Args> CallDisplayFunction(uint32_t devId,int32_t (HdiDisplay::* member)(Args...),Args...args)38 int32_t CallDisplayFunction(uint32_t devId, int32_t (HdiDisplay::*member)(Args...), Args... args) 39 { 40 DISPLAY_LOGD("device Id : %{public}d", devId); 41 DISPLAY_CHK_RETURN((devId == INVALIDE_DISPLAY_ID), DISPLAY_FAILURE, DISPLAY_LOGE("invalide device id")); 42 std::lock_guard<std::mutex> lock(mMutex); 43 auto iter = mHdiDisplays.find(devId); 44 DISPLAY_CHK_RETURN((iter == mHdiDisplays.end()), DISPLAY_FAILURE, 45 DISPLAY_LOGE("can not find display %{public}d", devId)); 46 auto display = iter->second.get(); 47 if (display == nullptr) { 48 DISPLAY_LOGD("CallDisplayFunction display is null"); 49 return DISPLAY_FAILURE; 50 } 51 return (display->*member)(std::forward<Args>(args)...); 52 } 53 54 template<typename... Args> CallLayerFunction(uint32_t devId,uint32_t layerId,int32_t (HdiLayer::* member)(Args...),Args...args)55 int32_t CallLayerFunction(uint32_t devId, uint32_t layerId, int32_t (HdiLayer::*member)(Args...), Args... args) 56 { 57 DISPLAY_LOGD("device Id : %{public}d", devId); 58 DISPLAY_CHK_RETURN((devId == INVALIDE_DISPLAY_ID), DISPLAY_FAILURE, DISPLAY_LOGE("invalide device id")); 59 std::lock_guard<std::mutex> lock(mMutex); 60 auto iter = mHdiDisplays.find(devId); 61 DISPLAY_CHK_RETURN((iter == mHdiDisplays.end()), DISPLAY_FAILURE, 62 DISPLAY_LOGE("can not find display %{public}d", devId)); 63 auto display = iter->second.get(); 64 if (display == nullptr) { 65 DISPLAY_LOGD("CallLayerFunction display is null"); 66 return DISPLAY_FAILURE; 67 } 68 auto layer = display->GetHdiLayer(layerId); 69 DISPLAY_CHK_RETURN((layer == nullptr), DISPLAY_FAILURE, 70 DISPLAY_LOGE("can not find the layer %{public}d", layerId)); 71 return (layer->*member)(std::forward<Args>(args)...); 72 } 73 74 int32_t RegHotPlugCallback(HotPlugCallback callback, void *data); 75 void DoHotPlugCallback(uint32_t devId, bool connect); 76 void HandleHotplug(bool plugIn); 77 78 private: 79 std::shared_ptr<HdiNetLinkMonitor> mNetLinkMonitor; 80 std::unordered_map<uint32_t, std::shared_ptr<HdiDisplay>> mHdiDisplays; 81 std::vector<std::shared_ptr<HdiDeviceInterface>> mHdiDevices; 82 std::unordered_map<HotPlugCallback, void *> mHotPlugCallBacks; 83 std::mutex mMutex; 84 }; 85 } // namespace OHOS 86 } // namespace HDI 87 } // namespace DISPLAY 88 89 #endif // HDI_SESSION_H 90