64 lines
2.6 KiB
Text
64 lines
2.6 KiB
Text
/*
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* Copyright (C) 2017 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.broadcastradio@1.1;
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import @1.0::ITunerCallback;
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/**
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* Some methods of @1.1::ITunerCallback are updated versions of those from
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* @1.0:ITunerCallback. All 1.1 HAL implementations must call both
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* (eg. tuneComplete and tuneComplete_1_1), while 1.1 clients may ignore 1.0
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* ones, to avoid receiving a callback twice.
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*/
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interface ITunerCallback extends @1.0::ITunerCallback {
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/**
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* Method called by the HAL when a tuning operation completes
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* following a step(), scan() or tune() command.
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* @param result OK if tune succeeded or TIMEOUT in case of time out.
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* @param info A ProgramInfo structure describing the tuned station.
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*/
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oneway tuneComplete_1_1(Result result, ProgramInfo info);
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/**
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* Method called by the HAL when a frequency switch occurs.
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* @param info A ProgramInfo structure describing the new tuned station.
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*/
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oneway afSwitch_1_1(ProgramInfo info);
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/**
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* Called by the HAL when background scan initiated by startBackgroundScan
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* finishes. If the list was changed, programListChanged must be called too.
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* @param result OK if the scan succeeded, client may retrieve the actual
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* list with ITuner::getProgramList.
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* TEMPORARILY_UNAVAILABLE if the scan was interrupted due to
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* hardware becoming temporarily unavailable.
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* NOT_INITIALIZED other error, ie. HW failure.
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*/
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oneway backgroundScanComplete(ProgramListResult result);
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/**
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* Called each time the internally cached program list changes. HAL may not
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* call it immediately, ie. it may wait for a short time to accumulate
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* multiple list change notifications into a single event.
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*
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* It may be triggered either by an explicitly issued background scan,
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* or a scan issued by the device internally.
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*
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* Client may retrieve the actual list with ITuner::getProgramList.
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*/
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oneway programListChanged();
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};
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