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
28namespace OHOS {
29namespace HDI {
30namespace DISPLAY {
31class HdiSession {
32public:
33    void Init();
34    static HdiSession &GetInstance();
35
36    template<typename... Args>
37    int32_t CallDisplayFunction(uint32_t devId, int32_t (HdiDisplay::*member)(Args...), Args... args)
38    {
39        DISPLAY_LOGD("device Id : %{public}d", devId);
40        DISPLAY_CHK_RETURN((devId == INVALIDE_DISPLAY_ID), DISPLAY_FAILURE, DISPLAY_LOGE("invalide device id"));
41        auto iter = mHdiDisplays.find(devId);
42        DISPLAY_CHK_RETURN((iter == mHdiDisplays.end()), DISPLAY_FAILURE,
43            DISPLAY_LOGE("can not find display %{public}d", devId));
44        auto display = iter->second.get();
45        return (display->*member)(std::forward<Args>(args)...);
46    }
47
48    template<typename... Args>
49    int32_t CallLayerFunction(uint32_t devId, uint32_t layerId, int32_t (HdiLayer::*member)(Args...), Args... args)
50    {
51        DISPLAY_LOGD("device Id : %{public}d", devId);
52        DISPLAY_CHK_RETURN((devId == INVALIDE_DISPLAY_ID), DISPLAY_FAILURE, DISPLAY_LOGE("invalide device id"));
53        auto iter = mHdiDisplays.find(devId);
54        DISPLAY_CHK_RETURN((iter == mHdiDisplays.end()), DISPLAY_FAILURE,
55            DISPLAY_LOGE("can not find display %{public}d", devId));
56        auto display = iter->second.get();
57        auto layer = display->GetHdiLayer(layerId);
58        DISPLAY_CHK_RETURN((layer == nullptr), DISPLAY_FAILURE,
59            DISPLAY_LOGE("can not find the layer %{public}d", layerId));
60        return (layer->*member)(std::forward<Args>(args)...);
61    }
62
63    int32_t RegHotPlugCallback(HotPlugCallback callback, void *data);
64    void DoHotPlugCallback(uint32_t devId, bool connect);
65    void HandleHotplug(bool plugIn);
66
67private:
68    std::shared_ptr<HdiNetLinkMonitor> mNetLinkMonitor;
69    std::unordered_map<uint32_t, std::shared_ptr<HdiDisplay>> mHdiDisplays;
70    std::vector<std::shared_ptr<HdiDeviceInterface>> mHdiDevices;
71    std::unordered_map<HotPlugCallback, void *> mHotPlugCallBacks;
72};
73} // namespace OHOS
74} // namespace HDI
75} // namespace DISPLAY
76
77#endif // HDI_SESSION_H
78