1 /*
2 * Copyright (C) 2015 Intel Corporation
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 <cutils/log.h>
18 #include "GroveTemperature.hpp"
19 #include "SensorsHAL.hpp"
20
21 struct sensor_t GroveTemperature::sensorDescription = {
22 .name = "Grove Temperature Sensor",
23 .vendor = "Murata",
24 .version = 1,
25 .handle = -1,
26 .type = SENSOR_TYPE_TEMPERATURE,
27 .maxRange = 125.0f,
28 .resolution = 1.0f,
29 .power = 0.001f,
30 .minDelay = 10,
31 .fifoReservedEventCount = 0,
32 .fifoMaxEventCount = 0,
33 .stringType = SENSOR_STRING_TYPE_TEMPERATURE,
34 .requiredPermission = "",
35 .maxDelay = 1000,
36 .flags = SENSOR_FLAG_ON_CHANGE_MODE,
37 .reserved = {},
38 };
39
createSensor(int pollFd)40 Sensor * GroveTemperature::createSensor(int pollFd) {
41 return new GroveTemperature(pollFd, 0);
42 }
43
initModule()44 void GroveTemperature::initModule() {
45 SensorContext::addSensorModule(&sensorDescription, createSensor);
46 }
47
GroveTemperature(int pollFd,int pin)48 GroveTemperature::GroveTemperature(int pollFd, int pin) : upm::GroveTemp(pin), pollFd(pollFd) {
49 handle = sensorDescription.handle;
50 type = SENSOR_TYPE_TEMPERATURE;
51 }
52
~GroveTemperature()53 GroveTemperature::~GroveTemperature() {}
54
pollEvents(sensors_event_t * data,int count)55 int GroveTemperature::pollEvents(sensors_event_t* data, int count) {
56 data->temperature = value();
57 return 1;
58 }
59
activate(int handle,int enabled)60 int GroveTemperature::activate(int handle, int enabled) {
61 /* start or stop the acquisition thread */
62 return activateAcquisitionThread(pollFd, handle, enabled);
63 }
64