JP Abgrall | 5dcc6c9 | 2012-05-31 20:39:43 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 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_SENSOR_BASE_H |
| 18 | #define ANDROID_SENSOR_BASE_H |
| 19 | |
| 20 | #include <stdint.h> |
| 21 | #include <errno.h> |
| 22 | #include <sys/cdefs.h> |
| 23 | #include <sys/types.h> |
| 24 | |
| 25 | /*****************************************************************************/ |
| 26 | struct sensors_event_t; |
| 27 | |
| 28 | class SensorBase { |
| 29 | protected: |
| 30 | const char* mDevName; |
| 31 | const char* mDataName; |
| 32 | char mInputName[PATH_MAX]; |
| 33 | int mDevFd; |
| 34 | int mDataFd; |
| 35 | |
| 36 | int findTypeByName(const char *name, const char *type); |
| 37 | int openInput(const char* inputName); |
| 38 | static int64_t getTimestamp(); |
| 39 | int openDevice(); |
| 40 | int closeDevice(); |
| 41 | |
| 42 | public: |
| 43 | SensorBase(const char* dev_name, |
| 44 | const char* data_name); |
| 45 | |
| 46 | virtual ~SensorBase(); |
| 47 | |
| 48 | virtual int readEvents(sensors_event_t* data, int count) = 0; |
| 49 | virtual bool hasPendingEvents() const; |
| 50 | virtual int getFd() const; |
| 51 | virtual int setDelay(int32_t handle, int64_t ns); |
| 52 | virtual int enable(int32_t handle, int enabled) = 0; |
| 53 | }; |
| 54 | |
| 55 | /*****************************************************************************/ |
| 56 | |
| 57 | #endif // ANDROID_SENSOR_BASE_H |