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84 lines
2.9 KiB
84 lines
2.9 KiB
/* |
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* Copyright (C) 2012 The Android Open Source Project |
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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 COMPASS_SENSOR_H |
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#define COMPASS_SENSOR_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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#include "SensorBase.h" |
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// TODO: include 3rd-party compass vendor's header file |
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// p.s.: before using unified HAL, make sure 3rd-party compass |
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// solution's driver/HAL work well by themselves |
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#include "AkmSensor.h" |
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/*****************************************************************************/ |
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class CompassSensor : public SensorBase { |
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protected: |
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public: |
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CompassSensor(); |
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virtual ~CompassSensor(); |
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// TODO: make sure either 3rd-party compass solution has following virtual |
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// functions, or SensorBase.cpp could provide equal functionalities |
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virtual int getFd() const; |
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virtual int getRawFd() {return 0;}; |
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virtual int enable(int32_t handle, int enabled); |
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virtual int setDelay(int32_t handle, int64_t ns); |
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virtual int getEnable(int32_t handle); |
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virtual int64_t getDelay(int32_t handle); |
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virtual int64_t getMinDelay() { return -1; } // stub |
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// TODO: unnecessary for MPL solution (override 3rd-party solution) |
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virtual int readEvents(sensors_event_t *data, int count) { return 0; } |
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// TODO: following four APIs need further implementation for MPL's |
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// reference (look into .cpp for detailed information, also refer to |
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// 3rd-party's readEvents() for relevant APIs) |
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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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void fillList(struct sensor_t *list); |
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void getOrientationMatrix(signed char *orient); |
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int getAccuracy(); |
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virtual void getCompassBias(long *bias) {return;}; |
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// TODO: if 3rd-party provides calibrated compass data, just return 1 |
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int providesCalibration() { return 1; } |
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// TODO: hard-coded for 3rd-party's sensitivity transformation |
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long getSensitivity() { return (1L << 30); } |
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/* all 3rd pary solution have compasses on the primary bus, hence they |
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have no dependency on the MPU */ |
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int isIntegrated() { return 0; } |
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int checkCoilsReset(void) { return 0; }; |
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int isYasCompass(void) { return 0; }; |
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private: |
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AkmSensor *mCompassSensor; |
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}; |
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/*****************************************************************************/ |
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#endif // COMPASS_SENSOR_H
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