1 /* 2 * Copyright (C) 2017 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 #include "BaseSensorObject.h" 18 #include "SensorEventCallback.h" 19 #include "Utils.h" 20 21 #include <cstring> 22 23 namespace android { 24 namespace SensorHalExt { 25 26 BaseSensorObject::BaseSensorObject() : mCallback(nullptr) { 27 } 28 29 bool BaseSensorObject::setEventCallback(SensorEventCallback* callback) { 30 if (mCallback != nullptr) { 31 return false; 32 } 33 mCallback = callback; 34 return true; 35 } 36 37 void BaseSensorObject::getUuid(uint8_t* uuid) const { 38 // default uuid denoting uuid feature is not supported on this sensor. 39 memset(uuid, 0, 16); 40 } 41 42 int BaseSensorObject::flush() { 43 static const sensors_event_t event = { 44 .type = SENSOR_TYPE_META_DATA, 45 .timestamp = TIMESTAMP_AUTO_FILL // timestamp will be filled at dispatcher 46 }; 47 generateEvent(event); 48 return 0; 49 } 50 51 void BaseSensorObject::generateEvent(const sensors_event_t &e) { 52 if (mCallback) { 53 mCallback->submitEvent(SP_THIS, e); 54 } 55 } 56 57 } // namespace SensorHalExt 58 } // namespace android 59 60
