621 lines
22 KiB
C++
621 lines
22 KiB
C++
/*
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* Copyright (C) 2010 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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#include <sensor/Sensor.h>
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#include <inttypes.h>
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#include <binder/AppOpsManager.h>
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#include <binder/IPermissionController.h>
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#include <binder/IServiceManager.h>
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/*
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* The permission to use for activity recognition sensors (like step counter).
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* See sensor types for more details on what sensors should require this
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* permission.
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*/
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#define SENSOR_PERMISSION_ACTIVITY_RECOGNITION "android.permission.ACTIVITY_RECOGNITION"
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// ----------------------------------------------------------------------------
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namespace android {
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// ----------------------------------------------------------------------------
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Sensor::Sensor(const char * name) :
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mName(name), mHandle(0), mType(0),
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mMinValue(0), mMaxValue(0), mResolution(0),
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mPower(0), mMinDelay(0), mVersion(0), mFifoReservedEventCount(0),
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mFifoMaxEventCount(0), mRequiredAppOp(-1),
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mMaxDelay(0), mFlags(0) {
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}
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Sensor::Sensor(struct sensor_t const* hwSensor, int halVersion) :
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Sensor(*hwSensor, uuid_t(), halVersion) {
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}
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Sensor::Sensor(struct sensor_t const& hwSensor, const uuid_t& uuid, int halVersion) :
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Sensor("") {
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mName = hwSensor.name;
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mVendor = hwSensor.vendor;
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mVersion = hwSensor.version;
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mHandle = hwSensor.handle;
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mType = hwSensor.type;
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mMinValue = 0; // FIXME: minValue
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mMaxValue = hwSensor.maxRange; // FIXME: maxValue
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mResolution = hwSensor.resolution;
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mPower = hwSensor.power;
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mMinDelay = hwSensor.minDelay;
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mFlags = 0;
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mUuid = uuid;
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// Set fifo event count zero for older devices which do not support batching. Fused
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// sensors also have their fifo counts set to zero.
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if (halVersion > SENSORS_DEVICE_API_VERSION_1_0) {
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mFifoReservedEventCount = hwSensor.fifoReservedEventCount;
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mFifoMaxEventCount = hwSensor.fifoMaxEventCount;
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} else {
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mFifoReservedEventCount = 0;
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mFifoMaxEventCount = 0;
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}
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if (halVersion >= SENSORS_DEVICE_API_VERSION_1_3) {
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if (hwSensor.maxDelay > INT_MAX) {
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// Max delay is declared as a 64 bit integer for 64 bit architectures. But it should
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// always fit in a 32 bit integer, log error and cap it to INT_MAX.
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ALOGE("Sensor maxDelay overflow error %s %" PRId64, mName.string(),
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static_cast<int64_t>(hwSensor.maxDelay));
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mMaxDelay = INT_MAX;
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} else {
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mMaxDelay = static_cast<int32_t>(hwSensor.maxDelay);
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}
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} else {
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// For older hals set maxDelay to 0.
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mMaxDelay = 0;
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}
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// Ensure existing sensors have correct string type, required permissions and reporting mode.
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// Set reportingMode for all android defined sensor types, set wake-up flag only for proximity
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// sensor, significant motion, tilt, pick_up gesture, wake gesture and glance gesture on older
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// HALs. Newer HALs can define both wake-up and non wake-up proximity sensors.
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// All the OEM defined defined sensors have flags set to whatever is provided by the HAL.
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switch (mType) {
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case SENSOR_TYPE_ACCELEROMETER:
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mStringType = SENSOR_STRING_TYPE_ACCELEROMETER;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_AMBIENT_TEMPERATURE:
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mStringType = SENSOR_STRING_TYPE_AMBIENT_TEMPERATURE;
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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break;
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case SENSOR_TYPE_GAME_ROTATION_VECTOR:
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mStringType = SENSOR_STRING_TYPE_GAME_ROTATION_VECTOR;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR:
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mStringType = SENSOR_STRING_TYPE_GEOMAGNETIC_ROTATION_VECTOR;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_GRAVITY:
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mStringType = SENSOR_STRING_TYPE_GRAVITY;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_GYROSCOPE:
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mStringType = SENSOR_STRING_TYPE_GYROSCOPE;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_GYROSCOPE_UNCALIBRATED:
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mStringType = SENSOR_STRING_TYPE_GYROSCOPE_UNCALIBRATED;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_HEART_RATE: {
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mStringType = SENSOR_STRING_TYPE_HEART_RATE;
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mRequiredPermission = SENSOR_PERMISSION_BODY_SENSORS;
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AppOpsManager appOps;
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mRequiredAppOp = appOps.permissionToOpCode(String16(mRequiredPermission));
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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} break;
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case SENSOR_TYPE_LIGHT:
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mStringType = SENSOR_STRING_TYPE_LIGHT;
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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break;
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case SENSOR_TYPE_LINEAR_ACCELERATION:
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mStringType = SENSOR_STRING_TYPE_LINEAR_ACCELERATION;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_MAGNETIC_FIELD:
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mStringType = SENSOR_STRING_TYPE_MAGNETIC_FIELD;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED:
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mStringType = SENSOR_STRING_TYPE_MAGNETIC_FIELD_UNCALIBRATED;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_ORIENTATION:
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mStringType = SENSOR_STRING_TYPE_ORIENTATION;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_PRESSURE:
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mStringType = SENSOR_STRING_TYPE_PRESSURE;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_PROXIMITY:
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mStringType = SENSOR_STRING_TYPE_PROXIMITY;
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= SENSOR_FLAG_WAKE_UP;
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}
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break;
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case SENSOR_TYPE_RELATIVE_HUMIDITY:
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mStringType = SENSOR_STRING_TYPE_RELATIVE_HUMIDITY;
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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break;
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case SENSOR_TYPE_ROTATION_VECTOR:
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mStringType = SENSOR_STRING_TYPE_ROTATION_VECTOR;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_SIGNIFICANT_MOTION:
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mStringType = SENSOR_STRING_TYPE_SIGNIFICANT_MOTION;
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mFlags |= SENSOR_FLAG_ONE_SHOT_MODE;
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if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= SENSOR_FLAG_WAKE_UP;
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}
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break;
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case SENSOR_TYPE_STEP_COUNTER: {
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mStringType = SENSOR_STRING_TYPE_STEP_COUNTER;
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mRequiredPermission = SENSOR_PERMISSION_ACTIVITY_RECOGNITION;
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AppOpsManager appOps;
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mRequiredAppOp =
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appOps.permissionToOpCode(String16(mRequiredPermission));
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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} break;
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case SENSOR_TYPE_STEP_DETECTOR: {
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mStringType = SENSOR_STRING_TYPE_STEP_DETECTOR;
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mRequiredPermission = SENSOR_PERMISSION_ACTIVITY_RECOGNITION;
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AppOpsManager appOps;
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mRequiredAppOp =
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appOps.permissionToOpCode(String16(mRequiredPermission));
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mFlags |= SENSOR_FLAG_SPECIAL_REPORTING_MODE;
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} break;
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case SENSOR_TYPE_TEMPERATURE:
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mStringType = SENSOR_STRING_TYPE_TEMPERATURE;
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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break;
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case SENSOR_TYPE_TILT_DETECTOR:
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mStringType = SENSOR_STRING_TYPE_TILT_DETECTOR;
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mFlags |= SENSOR_FLAG_SPECIAL_REPORTING_MODE;
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if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= SENSOR_FLAG_WAKE_UP;
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}
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break;
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case SENSOR_TYPE_WAKE_GESTURE:
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mStringType = SENSOR_STRING_TYPE_WAKE_GESTURE;
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mFlags |= SENSOR_FLAG_ONE_SHOT_MODE;
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if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= SENSOR_FLAG_WAKE_UP;
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}
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break;
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case SENSOR_TYPE_GLANCE_GESTURE:
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mStringType = SENSOR_STRING_TYPE_GLANCE_GESTURE;
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mFlags |= SENSOR_FLAG_ONE_SHOT_MODE;
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if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= SENSOR_FLAG_WAKE_UP;
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}
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break;
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case SENSOR_TYPE_PICK_UP_GESTURE:
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mStringType = SENSOR_STRING_TYPE_PICK_UP_GESTURE;
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mFlags |= SENSOR_FLAG_ONE_SHOT_MODE;
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if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= SENSOR_FLAG_WAKE_UP;
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}
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break;
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case SENSOR_TYPE_LOW_LATENCY_OFFBODY_DETECT:
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mStringType = SENSOR_STRING_TYPE_LOW_LATENCY_OFFBODY_DETECT;
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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break;
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case SENSOR_TYPE_WRIST_TILT_GESTURE:
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mStringType = SENSOR_STRING_TYPE_WRIST_TILT_GESTURE;
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mFlags |= SENSOR_FLAG_SPECIAL_REPORTING_MODE;
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if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= SENSOR_FLAG_WAKE_UP;
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}
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break;
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case SENSOR_TYPE_DEVICE_ORIENTATION:
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mStringType = SENSOR_STRING_TYPE_DEVICE_ORIENTATION;
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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break;
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case SENSOR_TYPE_DYNAMIC_SENSOR_META:
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mStringType = SENSOR_STRING_TYPE_DYNAMIC_SENSOR_META;
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mFlags |= SENSOR_FLAG_SPECIAL_REPORTING_MODE; // special trigger
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if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= SENSOR_FLAG_WAKE_UP;
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}
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break;
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case SENSOR_TYPE_POSE_6DOF:
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mStringType = SENSOR_STRING_TYPE_POSE_6DOF;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_STATIONARY_DETECT:
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mStringType = SENSOR_STRING_TYPE_STATIONARY_DETECT;
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mFlags |= SENSOR_FLAG_ONE_SHOT_MODE;
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if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= SENSOR_FLAG_WAKE_UP;
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}
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break;
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case SENSOR_TYPE_MOTION_DETECT:
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mStringType = SENSOR_STRING_TYPE_MOTION_DETECT;
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mFlags |= SENSOR_FLAG_ONE_SHOT_MODE;
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if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= SENSOR_FLAG_WAKE_UP;
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}
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break;
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case SENSOR_TYPE_HEART_BEAT:
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mStringType = SENSOR_STRING_TYPE_HEART_BEAT;
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mFlags |= SENSOR_FLAG_SPECIAL_REPORTING_MODE;
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break;
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// TODO: Placeholder for LLOB sensor type
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case SENSOR_TYPE_ACCELEROMETER_UNCALIBRATED:
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mStringType = SENSOR_STRING_TYPE_ACCELEROMETER_UNCALIBRATED;
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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break;
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case SENSOR_TYPE_HINGE_ANGLE:
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mStringType = SENSOR_STRING_TYPE_HINGE_ANGLE;
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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break;
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default:
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// Only pipe the stringType, requiredPermission and flags for custom sensors.
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if (halVersion > SENSORS_DEVICE_API_VERSION_1_0 && hwSensor.stringType) {
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mStringType = hwSensor.stringType;
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}
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if (halVersion > SENSORS_DEVICE_API_VERSION_1_0 && hwSensor.requiredPermission) {
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mRequiredPermission = hwSensor.requiredPermission;
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if (!strcmp(mRequiredPermission, SENSOR_PERMISSION_BODY_SENSORS)) {
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AppOpsManager appOps;
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mRequiredAppOp = appOps.permissionToOpCode(String16(SENSOR_PERMISSION_BODY_SENSORS));
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}
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}
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if (halVersion >= SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags = static_cast<uint32_t>(hwSensor.flags);
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} else {
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// This is an OEM defined sensor on an older HAL. Use minDelay to determine the
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// reporting mode of the sensor.
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if (mMinDelay > 0) {
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mFlags |= SENSOR_FLAG_CONTINUOUS_MODE;
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} else if (mMinDelay == 0) {
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mFlags |= SENSOR_FLAG_ON_CHANGE_MODE;
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} else if (mMinDelay < 0) {
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mFlags |= SENSOR_FLAG_ONE_SHOT_MODE;
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}
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}
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break;
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}
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if (halVersion >= SENSORS_DEVICE_API_VERSION_1_3) {
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// Wake-up flag of HAL 1.3 and above is set here
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mFlags |= (hwSensor.flags & SENSOR_FLAG_WAKE_UP);
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// Log error if the reporting mode is not as expected, but respect HAL setting.
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int actualReportingMode = (hwSensor.flags & REPORTING_MODE_MASK) >> REPORTING_MODE_SHIFT;
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int expectedReportingMode = (mFlags & REPORTING_MODE_MASK) >> REPORTING_MODE_SHIFT;
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if (actualReportingMode != expectedReportingMode) {
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ALOGE("Reporting Mode incorrect: sensor %s handle=%#010" PRIx32 " type=%" PRId32 " "
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"actual=%d expected=%d",
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mName.string(), mHandle, mType, actualReportingMode, expectedReportingMode);
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}
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}
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// Feature flags
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// Set DYNAMIC_SENSOR_MASK and ADDITIONAL_INFO_MASK flag here. Compatible with HAL 1_3.
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if (halVersion >= SENSORS_DEVICE_API_VERSION_1_3) {
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mFlags |= hwSensor.flags & (DYNAMIC_SENSOR_MASK | ADDITIONAL_INFO_MASK);
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}
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// Set DIRECT_REPORT_MASK and DIRECT_CHANNEL_MASK flags. Compatible with HAL 1_3.
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if (halVersion >= SENSORS_DEVICE_API_VERSION_1_3) {
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// only on continuous sensors direct report mode is defined
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if ((mFlags & REPORTING_MODE_MASK) == SENSOR_FLAG_CONTINUOUS_MODE) {
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mFlags |= hwSensor.flags
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& (SENSOR_FLAG_MASK_DIRECT_REPORT | SENSOR_FLAG_MASK_DIRECT_CHANNEL);
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}
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}
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// Set DATA_INJECTION flag here. Defined in HAL 1_4.
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if (halVersion >= SENSORS_DEVICE_API_VERSION_1_4) {
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mFlags |= (hwSensor.flags & DATA_INJECTION_MASK);
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}
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if (mRequiredPermission.length() > 0) {
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// If the sensor is protected by a permission we need to know if it is
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// a runtime one to determine whether we can use the permission cache.
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sp<IBinder> binder = defaultServiceManager()->getService(String16("permission"));
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if (binder != nullptr) {
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sp<IPermissionController> permCtrl = interface_cast<IPermissionController>(binder);
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mRequiredPermissionRuntime = permCtrl->isRuntimePermission(
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String16(mRequiredPermission));
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}
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}
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}
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Sensor::~Sensor() {
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}
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const String8& Sensor::getName() const {
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return mName;
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}
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const String8& Sensor::getVendor() const {
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return mVendor;
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}
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int32_t Sensor::getHandle() const {
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return mHandle;
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}
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int32_t Sensor::getType() const {
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return mType;
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}
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float Sensor::getMinValue() const {
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return mMinValue;
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}
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float Sensor::getMaxValue() const {
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return mMaxValue;
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}
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float Sensor::getResolution() const {
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return mResolution;
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}
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float Sensor::getPowerUsage() const {
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return mPower;
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}
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int32_t Sensor::getMinDelay() const {
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return mMinDelay;
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}
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nsecs_t Sensor::getMinDelayNs() const {
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return getMinDelay() * 1000;
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}
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int32_t Sensor::getVersion() const {
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return mVersion;
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}
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uint32_t Sensor::getFifoReservedEventCount() const {
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return mFifoReservedEventCount;
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}
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uint32_t Sensor::getFifoMaxEventCount() const {
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return mFifoMaxEventCount;
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}
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const String8& Sensor::getStringType() const {
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return mStringType;
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}
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const String8& Sensor::getRequiredPermission() const {
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return mRequiredPermission;
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}
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bool Sensor::isRequiredPermissionRuntime() const {
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return mRequiredPermissionRuntime;
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}
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int32_t Sensor::getRequiredAppOp() const {
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return mRequiredAppOp;
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}
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int32_t Sensor::getMaxDelay() const {
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return mMaxDelay;
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}
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uint32_t Sensor::getFlags() const {
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return mFlags;
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}
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bool Sensor::isWakeUpSensor() const {
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return (mFlags & SENSOR_FLAG_WAKE_UP) != 0;
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}
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bool Sensor::isDynamicSensor() const {
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return (mFlags & SENSOR_FLAG_DYNAMIC_SENSOR) != 0;
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}
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bool Sensor::isDataInjectionSupported() const {
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return (mFlags & SENSOR_FLAG_DATA_INJECTION) != 0;
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}
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bool Sensor::hasAdditionalInfo() const {
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return (mFlags & SENSOR_FLAG_ADDITIONAL_INFO) != 0;
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}
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int32_t Sensor::getHighestDirectReportRateLevel() const {
|
|
return ((mFlags & SENSOR_FLAG_MASK_DIRECT_REPORT) >> SENSOR_FLAG_SHIFT_DIRECT_REPORT);
|
|
}
|
|
|
|
bool Sensor::isDirectChannelTypeSupported(int32_t sharedMemType) const {
|
|
switch (sharedMemType) {
|
|
case SENSOR_DIRECT_MEM_TYPE_ASHMEM:
|
|
return mFlags & SENSOR_FLAG_DIRECT_CHANNEL_ASHMEM;
|
|
case SENSOR_DIRECT_MEM_TYPE_GRALLOC:
|
|
return mFlags & SENSOR_FLAG_DIRECT_CHANNEL_GRALLOC;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
int32_t Sensor::getReportingMode() const {
|
|
return ((mFlags & REPORTING_MODE_MASK) >> REPORTING_MODE_SHIFT);
|
|
}
|
|
|
|
const Sensor::uuid_t& Sensor::getUuid() const {
|
|
return mUuid;
|
|
}
|
|
|
|
void Sensor::setId(int32_t id) {
|
|
mUuid.i64[0] = id;
|
|
mUuid.i64[1] = 0;
|
|
}
|
|
|
|
void Sensor::capMinDelayMicros(int32_t cappedMinDelay) {
|
|
if (mMinDelay < cappedMinDelay) {
|
|
mMinDelay = cappedMinDelay;
|
|
}
|
|
}
|
|
|
|
void Sensor::capHighestDirectReportRateLevel(int32_t cappedRateLevel) {
|
|
if (cappedRateLevel < getHighestDirectReportRateLevel()) {
|
|
mFlags &= ~SENSOR_FLAG_MASK_DIRECT_REPORT;
|
|
mFlags |= cappedRateLevel << SENSOR_FLAG_SHIFT_DIRECT_REPORT;
|
|
}
|
|
}
|
|
|
|
int32_t Sensor::getId() const {
|
|
return int32_t(mUuid.i64[0]);
|
|
}
|
|
|
|
size_t Sensor::getFlattenedSize() const {
|
|
size_t fixedSize =
|
|
sizeof(mVersion) + sizeof(mHandle) + sizeof(mType) +
|
|
sizeof(mMinValue) + sizeof(mMaxValue) + sizeof(mResolution) +
|
|
sizeof(mPower) + sizeof(mMinDelay) + sizeof(mFifoMaxEventCount) +
|
|
sizeof(mFifoMaxEventCount) + sizeof(mRequiredPermissionRuntime) +
|
|
sizeof(mRequiredAppOp) + sizeof(mMaxDelay) + sizeof(mFlags) + sizeof(mUuid);
|
|
|
|
size_t variableSize =
|
|
sizeof(uint32_t) + FlattenableUtils::align<4>(mName.length()) +
|
|
sizeof(uint32_t) + FlattenableUtils::align<4>(mVendor.length()) +
|
|
sizeof(uint32_t) + FlattenableUtils::align<4>(mStringType.length()) +
|
|
sizeof(uint32_t) + FlattenableUtils::align<4>(mRequiredPermission.length());
|
|
|
|
return fixedSize + variableSize;
|
|
}
|
|
|
|
status_t Sensor::flatten(void* buffer, size_t size) const {
|
|
if (size < getFlattenedSize()) {
|
|
return NO_MEMORY;
|
|
}
|
|
|
|
flattenString8(buffer, size, mName);
|
|
flattenString8(buffer, size, mVendor);
|
|
FlattenableUtils::write(buffer, size, mVersion);
|
|
FlattenableUtils::write(buffer, size, mHandle);
|
|
FlattenableUtils::write(buffer, size, mType);
|
|
FlattenableUtils::write(buffer, size, mMinValue);
|
|
FlattenableUtils::write(buffer, size, mMaxValue);
|
|
FlattenableUtils::write(buffer, size, mResolution);
|
|
FlattenableUtils::write(buffer, size, mPower);
|
|
FlattenableUtils::write(buffer, size, mMinDelay);
|
|
FlattenableUtils::write(buffer, size, mFifoReservedEventCount);
|
|
FlattenableUtils::write(buffer, size, mFifoMaxEventCount);
|
|
flattenString8(buffer, size, mStringType);
|
|
flattenString8(buffer, size, mRequiredPermission);
|
|
FlattenableUtils::write(buffer, size, mRequiredPermissionRuntime);
|
|
FlattenableUtils::write(buffer, size, mRequiredAppOp);
|
|
FlattenableUtils::write(buffer, size, mMaxDelay);
|
|
FlattenableUtils::write(buffer, size, mFlags);
|
|
if (mUuid.i64[1] != 0) {
|
|
// We should never hit this case with our current API, but we
|
|
// could via a careless API change. If that happens,
|
|
// this code will keep us from leaking our UUID (while probably
|
|
// breaking dynamic sensors). See b/29547335.
|
|
ALOGW("Sensor with UUID being flattened; sending 0. Expect "
|
|
"bad dynamic sensor behavior");
|
|
uuid_t tmpUuid; // default constructor makes this 0.
|
|
FlattenableUtils::write(buffer, size, tmpUuid);
|
|
} else {
|
|
FlattenableUtils::write(buffer, size, mUuid);
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t Sensor::unflatten(void const* buffer, size_t size) {
|
|
if (!unflattenString8(buffer, size, mName)) {
|
|
return NO_MEMORY;
|
|
}
|
|
if (!unflattenString8(buffer, size, mVendor)) {
|
|
return NO_MEMORY;
|
|
}
|
|
|
|
size_t fixedSize1 =
|
|
sizeof(mVersion) + sizeof(mHandle) + sizeof(mType) + sizeof(mMinValue) +
|
|
sizeof(mMaxValue) + sizeof(mResolution) + sizeof(mPower) + sizeof(mMinDelay) +
|
|
sizeof(mFifoMaxEventCount) + sizeof(mFifoMaxEventCount);
|
|
if (size < fixedSize1) {
|
|
return NO_MEMORY;
|
|
}
|
|
|
|
FlattenableUtils::read(buffer, size, mVersion);
|
|
FlattenableUtils::read(buffer, size, mHandle);
|
|
FlattenableUtils::read(buffer, size, mType);
|
|
FlattenableUtils::read(buffer, size, mMinValue);
|
|
FlattenableUtils::read(buffer, size, mMaxValue);
|
|
FlattenableUtils::read(buffer, size, mResolution);
|
|
FlattenableUtils::read(buffer, size, mPower);
|
|
FlattenableUtils::read(buffer, size, mMinDelay);
|
|
FlattenableUtils::read(buffer, size, mFifoReservedEventCount);
|
|
FlattenableUtils::read(buffer, size, mFifoMaxEventCount);
|
|
|
|
if (!unflattenString8(buffer, size, mStringType)) {
|
|
return NO_MEMORY;
|
|
}
|
|
if (!unflattenString8(buffer, size, mRequiredPermission)) {
|
|
return NO_MEMORY;
|
|
}
|
|
|
|
size_t fixedSize2 =
|
|
sizeof(mRequiredPermissionRuntime) + sizeof(mRequiredAppOp) + sizeof(mMaxDelay) +
|
|
sizeof(mFlags) + sizeof(mUuid);
|
|
if (size < fixedSize2) {
|
|
return NO_MEMORY;
|
|
}
|
|
|
|
FlattenableUtils::read(buffer, size, mRequiredPermissionRuntime);
|
|
FlattenableUtils::read(buffer, size, mRequiredAppOp);
|
|
FlattenableUtils::read(buffer, size, mMaxDelay);
|
|
FlattenableUtils::read(buffer, size, mFlags);
|
|
FlattenableUtils::read(buffer, size, mUuid);
|
|
return NO_ERROR;
|
|
}
|
|
|
|
void Sensor::flattenString8(void*& buffer, size_t& size,
|
|
const String8& string8) {
|
|
uint32_t len = static_cast<uint32_t>(string8.length());
|
|
FlattenableUtils::write(buffer, size, len);
|
|
memcpy(static_cast<char*>(buffer), string8.string(), len);
|
|
FlattenableUtils::advance(buffer, size, len);
|
|
size -= FlattenableUtils::align<4>(buffer);
|
|
}
|
|
|
|
bool Sensor::unflattenString8(void const*& buffer, size_t& size, String8& outputString8) {
|
|
uint32_t len;
|
|
if (size < sizeof(len)) {
|
|
return false;
|
|
}
|
|
FlattenableUtils::read(buffer, size, len);
|
|
if (size < len) {
|
|
return false;
|
|
}
|
|
outputString8.setTo(static_cast<char const*>(buffer), len);
|
|
FlattenableUtils::advance(buffer, size, FlattenableUtils::align<4>(len));
|
|
return true;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
}; // namespace android
|