111 lines
4.9 KiB
Text
111 lines
4.9 KiB
Text
/*
|
|
* Copyright (C) 2015 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package android.hardware.broadcastradio@1.0;
|
|
|
|
import ITunerCallback;
|
|
|
|
interface ITuner {
|
|
|
|
/**
|
|
* Apply current radio band configuration (band, range, channel spacing...).
|
|
* Automatically cancels pending scan, step or tune.
|
|
* ITunerCallback.configChange() method MUST be called once the
|
|
* configuration is applied or a failure occurs or after a time out.
|
|
* @param config The band configuration to apply.
|
|
* @return result OK if configuration could be applied
|
|
* NOT_INITIALIZED in case of initialization error.
|
|
* INVALID_ARGUMENTS if configuration requested is invalid
|
|
*
|
|
*/
|
|
setConfiguration(BandConfig config) generates(Result result);
|
|
|
|
/**
|
|
* Retrieve current radio band configuration.
|
|
* @return result OK if valid configuration is returned,
|
|
* NOT_INITIALIZED in case of initialization error.
|
|
* @param config Current band configuration
|
|
*/
|
|
getConfiguration() generates(Result result, BandConfig config);
|
|
|
|
/**
|
|
* Start scanning up to next valid station.
|
|
* Shall be called only when a valid configuration has been applied.
|
|
* Automatically cancels pending scan, step or tune.
|
|
* ITunerCallback.tuneComplete() MUST be called once locked on a station
|
|
* or after a time out or full band scan if no station found.
|
|
* The status should indicate if a valid station is tuned or not.
|
|
* @param direction UP or DOWN.
|
|
* @param skipSubChannel valid for HD radio or digital radios only:
|
|
* ignore sub channels (e.g SPS for HD radio).
|
|
* @return result OK if scan successfully started
|
|
* INVALID_STATE if called out of sequence
|
|
* NOT_INITIALIZED if another error occurs
|
|
*/
|
|
scan(Direction direction, bool skipSubChannel) generates(Result result);
|
|
|
|
/**
|
|
* Move one channel spacing up or down.
|
|
* Must be called when a valid configuration has been applied.
|
|
* Automatically cancels pending scan, step or tune.
|
|
* ITunerCallback.tuneComplete() MUST be called once locked on a station
|
|
* or after a time out or full band scan if no station found.
|
|
* The status should indicate if a valid station is tuned or not.
|
|
* @param direction UP or DOWN.
|
|
* @param skipSubChannel valid for HD radio or digital radios only:
|
|
* ignore sub channels (e.g SPS for HD radio).
|
|
* @return result OK if scan successfully started
|
|
* INVALID_STATE if called out of sequence
|
|
* NOT_INITIALIZED if another error occurs
|
|
*/
|
|
step(Direction direction, bool skipSubChannel) generates(Result result);
|
|
|
|
/**
|
|
* Tune to specified channel.
|
|
* Must be called when a valid configuration has been applied.
|
|
* Automatically cancels pending scan, step or tune.
|
|
* ITunerCallback.tuneComplete() MUST be called once locked on a station
|
|
* or after a time out or full band scan if no station found.
|
|
* The status should indicate if a valid station is tuned or not.
|
|
* @param channel Channel to tune to. A frequency in kHz for AM/FM/HD Radio
|
|
* bands.
|
|
* @param subChannel Valid for HD radio or digital radios only
|
|
* (e.g SPS number for HD radio)..
|
|
* @return result OK if scan successfully started
|
|
* INVALID_ARGUMENTS if invalid arguments are passed
|
|
* INVALID_STATE if called out of sequence
|
|
* NOT_INITIALIZED if another error occurs
|
|
*/
|
|
tune(uint32_t channel, uint32_t subChannel) generates(Result result);
|
|
|
|
/**
|
|
* Cancel a scan, step or tune operation.
|
|
* Shall be called only while a scan, step or tune operation is pending.
|
|
* ITunerCallback.tuneComplete() MUST NOT be sent by the HAL.
|
|
* @return result OK if scan successfully started
|
|
* INVALID_STATE if called out of sequence
|
|
* NOT_INITIALIZED if another error occurs
|
|
*/
|
|
cancel() generates(Result result);
|
|
|
|
/**
|
|
* Retrieve current station information.
|
|
* @return result OK if scan successfully started
|
|
* NOT_INITIALIZED if another error occurs
|
|
* @return info Current program information.
|
|
*/
|
|
getProgramInformation() generates(Result result, ProgramInfo info);
|
|
};
|