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      1 /*
      2  * Copyright (C) 2010 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 #ifndef ANDROID_GUI_SENSOR_H
     18 #define ANDROID_GUI_SENSOR_H
     19 
     20 #include <stdint.h>
     21 #include <sys/types.h>
     22 
     23 #include <utils/Errors.h>
     24 #include <utils/Flattenable.h>
     25 #include <utils/String8.h>
     26 #include <utils/Timers.h>
     27 
     28 #include <hardware/sensors.h>
     29 
     30 #include <android/sensor.h>
     31 
     32 // ----------------------------------------------------------------------------
     33 // Concrete types for the NDK
     34 struct ASensor { };
     35 
     36 // ----------------------------------------------------------------------------
     37 namespace android {
     38 // ----------------------------------------------------------------------------
     39 
     40 class Parcel;
     41 
     42 // ----------------------------------------------------------------------------
     43 
     44 class Sensor : public ASensor, public Flattenable
     45 {
     46 public:
     47     enum {
     48         TYPE_ACCELEROMETER  = ASENSOR_TYPE_ACCELEROMETER,
     49         TYPE_MAGNETIC_FIELD = ASENSOR_TYPE_MAGNETIC_FIELD,
     50         TYPE_GYROSCOPE      = ASENSOR_TYPE_GYROSCOPE,
     51         TYPE_LIGHT          = ASENSOR_TYPE_LIGHT,
     52         TYPE_PROXIMITY      = ASENSOR_TYPE_PROXIMITY
     53     };
     54 
     55             Sensor();
     56             Sensor(struct sensor_t const* hwSensor);
     57     virtual ~Sensor();
     58 
     59     const String8& getName() const;
     60     const String8& getVendor() const;
     61     int32_t getHandle() const;
     62     int32_t getType() const;
     63     float getMinValue() const;
     64     float getMaxValue() const;
     65     float getResolution() const;
     66     float getPowerUsage() const;
     67     int32_t getMinDelay() const;
     68     nsecs_t getMinDelayNs() const;
     69     int32_t getVersion() const;
     70 
     71     // Flattenable interface
     72     virtual size_t getFlattenedSize() const;
     73     virtual size_t getFdCount() const;
     74     virtual status_t flatten(void* buffer, size_t size,
     75             int fds[], size_t count) const;
     76     virtual status_t unflatten(void const* buffer, size_t size,
     77             int fds[], size_t count);
     78 
     79 private:
     80     String8 mName;
     81     String8 mVendor;
     82     int32_t mHandle;
     83     int32_t mType;
     84     float   mMinValue;
     85     float   mMaxValue;
     86     float   mResolution;
     87     float   mPower;
     88     int32_t mMinDelay;
     89     int32_t mVersion;
     90 };
     91 
     92 // ----------------------------------------------------------------------------
     93 }; // namespace android
     94 
     95 #endif // ANDROID_GUI_SENSOR_H
     96