| /* |
| * Copyright (C) 2012 Invensense, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_SENSOR_BASE_H |
| #define ANDROID_SENSOR_BASE_H |
| |
| #include <stdint.h> |
| #include <errno.h> |
| #include <sys/cdefs.h> |
| #include <sys/types.h> |
| |
| #if defined ANDROID_JELLYBEAN |
| //build for Jellybean |
| #define LOGV_IF ALOGV_IF |
| #define LOGE_IF ALOGE_IF |
| #define LOGI_IF ALOGI_IF |
| #define LOGI ALOGI |
| #define LOGE ALOGE |
| #define LOGV ALOGV |
| #define LOGW ALOGW |
| #else |
| //build for ICS or earlier version |
| #endif |
| |
| #define FUNC_LOG \ |
| LOGV("%s", __PRETTY_FUNCTION__) |
| #define VFUNC_LOG \ |
| LOGV_IF(SensorBase::FUNC_ENTRY, \ |
| "Entering function '%s'", __PRETTY_FUNCTION__) |
| #define VHANDLER_LOG \ |
| LOGV_IF(SensorBase::HANDLER_ENTRY, \ |
| "Entering handler '%s'", __PRETTY_FUNCTION__) |
| #define CALL_MEMBER_FN(pobject, ptrToMember) ((pobject)->*(ptrToMember)) |
| |
| #define MAX_SYSFS_NAME_LEN (100) |
| #define IIO_BUFFER_LENGTH (480) |
| |
| /*****************************************************************************/ |
| |
| struct sensors_event_t; |
| |
| class SensorBase { |
| public: |
| /* Log enablers, each of these independent */ |
| static bool PROCESS_VERBOSE; /* process log messages */ |
| static bool EXTRA_VERBOSE; /* verbose log messages */ |
| static bool SYSFS_VERBOSE; /* log sysfs interactions as cat/echo for |
| repro purpose on a shell */ |
| /* Note that enabling this logs may affect performance */ |
| static bool FUNC_ENTRY; /* log entry in all one-time functions */ |
| static bool HANDLER_ENTRY; /* log entry in all handler functions */ |
| static bool ENG_VERBOSE; /* log a lot more info about the internals */ |
| static bool INPUT_DATA; /* log the data input from the events */ |
| static bool HANDLER_DATA; /* log the data fetched from the handlers */ |
| |
| protected: |
| const char *dev_name; |
| const char *data_name; |
| char input_name[PATH_MAX]; |
| int dev_fd; |
| int data_fd; |
| |
| int openInput(const char* inputName); |
| static int64_t getTimestamp(); |
| static int64_t timevalToNano(timeval const& t) { |
| return t.tv_sec * 1000000000LL + t.tv_usec * 1000; |
| } |
| |
| int open_device(); |
| int close_device(); |
| |
| public: |
| SensorBase(const char* dev_name, const char* data_name); |
| virtual ~SensorBase(); |
| |
| virtual int readEvents(sensors_event_t* data, int count) = 0; |
| int readSample(long *data, int64_t *timestamp); |
| int readRawSample(float *data, int64_t *timestamp); |
| virtual bool hasPendingEvents() const; |
| virtual int getFd() const; |
| virtual int setDelay(int32_t handle, int64_t ns); |
| virtual int enable(int32_t handle, int enabled); |
| virtual int query(int what, int* value); |
| virtual int batch(int handle, int flags, int64_t period_ns, int64_t timeout); |
| virtual int flush(int handle); |
| }; |
| |
| /*****************************************************************************/ |
| |
| #endif // ANDROID_SENSOR_BASE_H |