1 /* 2 * Copyright (C) 2011 Samsung 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 <fcntl.h> 18 #include <errno.h> 19 #include <math.h> 20 #include <poll.h> 21 #include <unistd.h> 22 #include <dirent.h> 23 #include <sys/select.h> 24 #include <cutils/log.h> 25 #include <pthread.h> 26 27 #include "PressureSensor.h" 28 29 /* 30 * The BMP driver gives pascal values. 31 * It needs to be changed into hectoPascal 32 */ 33 #define PRESSURE_HECTO (1.0f/100.0f) 34 PressureSensor()35PressureSensor::PressureSensor() 36 : SamsungSensorBase(NULL, "barometer", ABS_PRESSURE) 37 { 38 mPendingEvent.sensor = ID_PR; 39 mPendingEvent.type = SENSOR_TYPE_PRESSURE; 40 } 41 handleEvent(input_event const * event)42bool PressureSensor::handleEvent(input_event const *event) { 43 mPendingEvent.pressure = event->value * PRESSURE_HECTO; 44 return true; 45 } 46