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
HotplugThread(CameraHAL * hal)26 HotplugThread::HotplugThread(CameraHAL *hal)
27 : mModule(hal) {
28
29 }
30
~HotplugThread()31 HotplugThread::~HotplugThread() {
32
33 }
34
requestExit()35 void HotplugThread::requestExit() {
36 // Call parent to set up shutdown
37 Thread::requestExit();
38
39 // Cleanup other states?
40 }
41
threadLoop()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