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53 lines
1.6 KiB
53 lines
1.6 KiB
4 months ago
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/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef HOTPLUG_THREAD_H_
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#define HOTPLUG_THREAD_H_
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#include <utils/Thread.h>
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#include "CameraHAL.h"
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namespace usb_camera_hal {
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/**
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* Thread for managing usb camera hotplug. It does below:
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* 1. Monitor camera hotplug status, and notify the status changes by calling
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* module callback methods.
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* 2. When camera is plugged, create camera device instance, initialize the camera
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* static info. When camera is unplugged, destroy the camera device instance and
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* static metadata. As an optimization option, the camera device instance (including
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* the static info) could be cached when the same camera plugged/unplugged multiple
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* times.
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*/
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class CameraHAL;
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class HotplugThread : public android::Thread {
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public:
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explicit HotplugThread(CameraHAL *hal);
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~HotplugThread();
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// Override below two methods for proper cleanup.
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virtual bool threadLoop();
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virtual void requestExit();
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private:
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CameraHAL *mModule;
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};
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} // namespace usb_camera_hal
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#endif // HOTPLUG_THREAD_H_
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