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