4 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
20 #ifndef _PRESSURE_SENSOR_H_
21 #define _PRESSURE_SENSOR_H_
23 #include <sensor_common.h>
25 #include <physical_sensor.h>
26 #include <sensor_hal.h>
28 class pressure_sensor : public physical_sensor {
31 virtual ~pressure_sensor();
34 sensor_type_t get_type(void);
36 static bool working(void *inst);
38 bool set_interval(unsigned long interval);
39 virtual bool get_properties(sensor_properties_s &properties);
40 int get_sensor_data(unsigned int type, sensor_data_t &data);
43 sensor_hal *m_sensor_hal;
46 float m_sea_level_pressure;
47 float m_temperature_offset;
48 float m_temperature_resolution;
50 virtual bool on_start(void);
51 virtual bool on_stop(void);
52 bool process_event(void);
53 float pressure_to_altitude(float pressure);
54 void raw_to_base(sensor_data_t &data);