1 /* 2 * Copyright (C) 2015 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 //#define LOG_NDEBUG 0 18 #define LOG_TAG "HotplugThread" 19 20 #include <log/log.h> 21 22 #include "HotplugThread.h" 23 24 namespace usb_camera_hal { 25 26 HotplugThread::HotplugThread(CameraHAL *hal) 27 : mModule(hal) { 28 29 } 30 31 HotplugThread::~HotplugThread() { 32 33 } 34 35 void HotplugThread::requestExit() { 36 // Call parent to set up shutdown 37 Thread::requestExit(); 38 39 // Cleanup other states? 40 } 41 42 bool HotplugThread::threadLoop() { 43 (void)mModule; // silence warning about unused member. 44 45 /** 46 * Check camera connection status change, if connected, do below: 47 * 1. Create camera device, add to mCameras. 48 * 2. Init static info (mCameras[id]->initStaticInfo()) 49 * 3. Notify on_status_change callback 50 * 51 * If unconnected, similarly, do below: 52 * 1. Destroy camera device and remove it from mCameras. 53 * 2. Notify on_status_change callback 54 * 55 * DO NOT have a tight polling loop here, to avoid excessive CPU utilization. 56 */ 57 58 return true; 59 } 60 61 } // namespace usb_camera_hal 62
