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105 lines
3.5 KiB
105 lines
3.5 KiB
/*
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* Copyright (C) 2014 Invensense, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_SENSOR_BASE_H
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#define ANDROID_SENSOR_BASE_H
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#include <stdint.h>
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#include <errno.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#if defined ANDROID_JELLYBEAN || defined ANDROID_KITKAT || defined ANDROID_LOLLIPOP
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//build for Jellybean or KitKat
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#define LOGV_IF ALOGV_IF
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#define LOGE_IF ALOGE_IF
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#define LOGI_IF ALOGI_IF
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#define LOGI ALOGI
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#define LOGE ALOGE
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#define LOGV ALOGV
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#define LOGW ALOGW
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#else
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//build for ICS or earlier version
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#endif
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#define FUNC_LOG \
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LOGV("%s", __PRETTY_FUNCTION__)
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#define VFUNC_LOG \
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LOGV_IF(SensorBase::FUNC_ENTRY, \
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"Entering function '%s'", __PRETTY_FUNCTION__)
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#define VHANDLER_LOG \
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LOGV_IF(SensorBase::HANDLER_ENTRY, \
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"Entering handler '%s'", __PRETTY_FUNCTION__)
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#define CALL_MEMBER_FN(pobject, ptrToMember) ((pobject)->*(ptrToMember))
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#define MAX_SYSFS_NAME_LEN (100)
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#define IIO_BUFFER_LENGTH (960)
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/*****************************************************************************/
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struct sensors_event_t;
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class SensorBase {
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public:
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/* Log enablers, each of these independent */
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static bool PROCESS_VERBOSE; /* process log messages */
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static bool EXTRA_VERBOSE; /* verbose log messages */
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static bool SYSFS_VERBOSE; /* log sysfs interactions as cat/echo for
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repro purpose on a shell */
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/* Note that enabling this logs may affect performance */
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static bool FUNC_ENTRY; /* log entry in all one-time functions */
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static bool HANDLER_ENTRY; /* log entry in all handler functions */
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static bool ENG_VERBOSE; /* log a lot more info about the internals */
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static bool INPUT_DATA; /* log the data input from the events */
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static bool HANDLER_DATA; /* log the data fetched from the handlers */
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static bool DEBUG_BATCHING; /* log the data for debugging batching */
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protected:
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const char *dev_name;
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const char *data_name;
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char input_name[PATH_MAX];
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int dev_fd;
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int data_fd;
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int openInput(const char* inputName);
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static int64_t getTimestamp();
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static int64_t timevalToNano(timeval const& t) {
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return t.tv_sec * 1000000000LL + t.tv_usec * 1000;
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}
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int open_device();
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int close_device();
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public:
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SensorBase(const char* dev_name, const char* data_name);
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virtual ~SensorBase();
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virtual int readEvents(sensors_event_t* data, int count) = 0;
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int readSample(long *data, int64_t *timestamp);
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int readRawSample(float *data, int64_t *timestamp);
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virtual bool hasPendingEvents() const;
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virtual int getFd() const;
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virtual int setDelay(int32_t handle, int64_t ns);
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virtual int enable(int32_t handle, int enabled);
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virtual int query(int what, int* value);
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virtual int batch(int handle, int flags, int64_t period_ns, int64_t timeout);
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virtual int flush(int handle);
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};
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/*****************************************************************************/
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#endif // ANDROID_SENSOR_BASE_H
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