52 lines
2.3 KiB
Text
52 lines
2.3 KiB
Text
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/*
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* Copyright (C) 2018 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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package android.hardware.gnss@2.0;
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import @1.0::IGnssMeasurement;
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import @1.1::IGnssMeasurement;
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import IGnssMeasurementCallback;
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/**
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* Extended interface for GNSS Measurements support.
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*/
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interface IGnssMeasurement extends @1.1::IGnssMeasurement {
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/**
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* Initializes the interface and registers the callback routines with the HAL. After a
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* successful call to 'setCallback_2_0' the HAL must begin to provide updates at an average
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* output rate of 1Hz (occasional intra-measurement time offsets in the range from 0-2000msec
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* can be tolerated.)
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*
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* @param callback Handle to GnssMeasurement callback interface.
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* @param enableFullTracking If true, GNSS chipset must switch off duty cycling. In such mode
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* no clock discontinuities are expected and, when supported, carrier phase should be
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* continuous in good signal conditions. All non-blacklisted, healthy constellations,
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* satellites and frequency bands that the chipset supports must be reported in this mode.
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* The GNSS chipset is allowed to consume more power in this mode. If false, API must behave
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* as in HAL V1_0, optimizing power via duty cycling, constellations and frequency limits,
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* etc.
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*
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* @return initRet Returns SUCCESS if successful. Returns ERROR_ALREADY_INIT if a callback has
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* already been registered without a corresponding call to 'close'. Returns ERROR_GENERIC
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* for any other error. The HAL must not generate any other updates upon returning this
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* error code.
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*/
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setCallback_2_0(IGnssMeasurementCallback callback, bool enableFullTracking)
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generates (GnssMeasurementStatus initRet);
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};
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