1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_VEHICLE_INTERNAL_H 18 #define ANDROID_VEHICLE_INTERNAL_H 19 20 #include <hardware/vehicle.h> 21 22 __BEGIN_DECLS 23 24 /** 25 * Define all internal properties used in VNS. This is not shared with vehicle HAL, but 26 * used for internal synchronization / testing purpose. 27 */ 28 29 /** 30 * Represents state of audio stream. Audio HAL should set this when a steam is starting or ending. 31 * Actual streaming of data should be done only after getting focus for the given stream from 32 * car audio module. Focus can be already granted when stream is started. Focus state can be 33 * monitored by monitoring VEHICLE_PROPERTY_AUDIO_FOCUS. If car does not support 34 * VEHICLE_PROPERTY_AUDIO_FOCUS, there is no need to monitor focus as focus is assumed to be 35 * granted always. 36 * Data has the following format: 37 * int32_array[0] : vehicle_audio_stream_state 38 * int32_array[1] : stream number 39 * 40 * @value_type VEHICLE_VALUE_TYPE_INT32_VEC2 41 * @change_mode VEHICLE_PROP_CHANGE_MODE_ON_CHANGE 42 * @access VEHICLE_PROP_ACCESS_READ_WRITE 43 * @data_member int32_array 44 */ 45 #define VEHICLE_PROPERTY_INTERNAL_AUDIO_STREAM_STATE (0x74000000) 46 47 enum vehicle_audio_stream_state { 48 VEHICLE_AUDIO_STREAM_STATE_STOPPED = 0, 49 VEHICLE_AUDIO_STREAM_STATE_STARTED = 1, 50 }; 51 52 enum vehicle_audio_stream_state_index { 53 VEHICLE_AUDIO_STREAM_STATE_INDEX_STATE = 0, 54 VEHICLE_AUDIO_STREAM_STATE_INDEX_STREAM = 1, 55 }; 56 57 __END_DECLS 58 59 #endif /* ANDROID_VEHICLE_INTERNAL_H */ 60
