1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef SENSOR_DATA_EVENT_H 17 #define SENSOR_DATA_EVENT_H 18 19 namespace OHOS { 20 namespace Sensors { 21 constexpr int32_t RESERVED_DATA_LEN = 3; 22 constexpr int32_t EXTRA_INFO_DATA_LEN = 14; 23 constexpr int32_t DEFAULT_SENSOR_DATA_DIMS = 16; 24 25 enum { 26 WAKE_UP_SENSOR = 1u, 27 CONTINUOUS_SENSOR = 0u, 28 ON_CHANGE_SENSOR = 2u, 29 ONE_SHOT_SENSOR = 4u, 30 }; 31 32 struct SensorData { 33 float data[DEFAULT_SENSOR_DATA_DIMS]; 34 uint32_t reserved[RESERVED_DATA_LEN]; 35 }; 36 37 struct ExtraInfo { 38 int32_t sensorId; 39 int32_t type; // type of payload data, see ExtraInfo 40 int32_t serial; // sequence number of this frame for this type 41 union { 42 // for each frame, a single data type, either int32_t or float, should be used. 43 int32_t data_int32[EXTRA_INFO_DATA_LEN]; 44 float data_float[EXTRA_INFO_DATA_LEN]; 45 }; 46 }; 47 48 struct ExtraSensorInfo { 49 ExtraInfo additional_info; 50 }; 51 } // namespace Sensors 52 } // namespace OHOS 53 #endif // SENSOR_DATA_EVENT_H 54