59 lines
2 KiB
C
59 lines
2 KiB
C
/*
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* Copyright (C) 2015 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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#ifndef ANDROID_VEHICLE_INTERNAL_H
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#define ANDROID_VEHICLE_INTERNAL_H
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#include <hardware/vehicle.h>
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__BEGIN_DECLS
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/**
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* Define all internal properties used in VNS. This is not shared with vehicle HAL, but
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* used for internal synchronization / testing purpose.
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*/
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/**
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* Represents state of audio stream. Audio HAL should set this when a steam is starting or ending.
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* Actual streaming of data should be done only after getting focus for the given stream from
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* car audio module. Focus can be already granted when stream is started. Focus state can be
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* monitored by monitoring VEHICLE_PROPERTY_AUDIO_FOCUS. If car does not support
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* VEHICLE_PROPERTY_AUDIO_FOCUS, there is no need to monitor focus as focus is assumed to be
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* granted always.
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* Data has the following format:
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* int32_array[0] : vehicle_audio_stream_state
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* int32_array[1] : stream number
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*
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* @value_type VEHICLE_VALUE_TYPE_INT32_VEC2
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* @change_mode VEHICLE_PROP_CHANGE_MODE_ON_CHANGE
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* @access VEHICLE_PROP_ACCESS_READ_WRITE
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* @data_member int32_array
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*/
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#define VEHICLE_PROPERTY_INTERNAL_AUDIO_STREAM_STATE (0x74000000)
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enum vehicle_audio_stream_state {
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VEHICLE_AUDIO_STREAM_STATE_STOPPED = 0,
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VEHICLE_AUDIO_STREAM_STATE_STARTED = 1,
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};
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enum vehicle_audio_stream_state_index {
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VEHICLE_AUDIO_STREAM_STATE_INDEX_STATE = 0,
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VEHICLE_AUDIO_STREAM_STATE_INDEX_STREAM = 1,
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};
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__END_DECLS
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#endif /* ANDROID_VEHICLE_INTERNAL_H */
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