You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
2.7 KiB
65 lines
2.7 KiB
/*
|
|
* Copyright (C) 2017 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@1.1;
|
|
|
|
import @1.0::IBroadcastRadio;
|
|
|
|
interface IBroadcastRadio extends @1.0::IBroadcastRadio {
|
|
|
|
/**
|
|
* Retrieve implementation properties.
|
|
* @return properties A Properties structure containing implementation
|
|
* description and capabilities.
|
|
*/
|
|
getProperties_1_1() generates (Properties properties);
|
|
|
|
/**
|
|
* Fetch image from radio module.
|
|
*
|
|
* This call is meant to make V1_0::MetaData lightweight - instead of
|
|
* passing an image data blob in the MetadataType.RAW field, the HAL
|
|
* implementation only passes the identifier, so the client may cache images
|
|
* or even not fetch them.
|
|
*
|
|
* The identifier may be any arbitrary number - sequential, sha256 prefix,
|
|
* or any other unique value selected by the vendor.
|
|
*
|
|
* The data should be a valid PNG, JPEG, GIF or BMP file.
|
|
* Image data with an invalid format must be handled gracefully in the same
|
|
* way as a missing image.
|
|
*
|
|
* The image identifier may become invalid after some time from passing it
|
|
* with metadata struct (due to resource cleanup at the HAL implementation).
|
|
* However, it must remain valid for a currently tuned program at least
|
|
* until currentProgramInfoChanged or programListChanged is called and
|
|
* metadata changes for the current program.
|
|
*
|
|
* There is still a race condition possible (if the HAL deletes the old
|
|
* image immediately after notifying about the new one) between
|
|
* currentProgramInfoChanged callback propagating through the framework and
|
|
* the HAL implementation removing previous image. In such case, client
|
|
* application may expect the new currentProgramInfoChanged callback with
|
|
* updated image identifier.
|
|
*
|
|
* @param id Identifier of an image;
|
|
* value of 0 is reserved and should be treated as invalid image.
|
|
* @return image A binary blob with image data
|
|
* or a zero-length vector if identifier doesn't exist.
|
|
*/
|
|
getImage(int32_t id) generates (vec<uint8_t> image);
|
|
};
|