1f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin/* 2f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * Copyright (C) 2011 The Android Open Source Project 3f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 4f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * Licensed under the Apache License, Version 2.0 (the "License"); 5f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * you may not use this file except in compliance with the License. 6f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * You may obtain a copy of the License at 7f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 8f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * http://www.apache.org/licenses/LICENSE-2.0 9f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 10f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * Unless required by applicable law or agreed to in writing, software 11f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * distributed under the License is distributed on an "AS IS" BASIS, 12f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * See the License for the specific language governing permissions and 14f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * limitations under the License. 15f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 16f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 17f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 18f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin#ifndef ANDROID_AUDIO_POLICY_INTERFACE_H 19f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin#define ANDROID_AUDIO_POLICY_INTERFACE_H 20f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 21f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin#include <stdint.h> 22f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin#include <sys/cdefs.h> 23f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin#include <sys/types.h> 24f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 25f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin#include <hardware/hardware.h> 26f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 27aa21172bcd4c332eec78d34ffdafd8cc0178ea95Dima Zavin#include <system/audio.h> 281199865d0cb68750e2b959cb3ed04e1bc0f1c9d1Dima Zavin#include <system/audio_policy.h> 29f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 30f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin__BEGIN_DECLS 31f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 32f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin/** 33f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * The id of this module 34f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 35f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin#define AUDIO_POLICY_HARDWARE_MODULE_ID "audio_policy" 36f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 37f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin/** 38f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * Name of the audio devices to open 39f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 40f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin#define AUDIO_POLICY_INTERFACE "policy" 41f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 42f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin/* ---------------------------------------------------------------------------- */ 43f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 44f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin/* 45f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * The audio_policy and audio_policy_service_ops structs define the 46f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * communication interfaces between the platform specific audio policy manager 47f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * and Android generic audio policy manager. 48f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * The platform specific audio policy manager must implement methods of the 49f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * audio_policy struct. 50f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * This implementation makes use of the audio_policy_service_ops to control 51f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * the activity and configuration of audio input and output streams. 52f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 53f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * The platform specific audio policy manager is in charge of the audio 54f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * routing and volume control policies for a given platform. 55f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * The main roles of this module are: 56f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * - keep track of current system state (removable device connections, phone 57f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * state, user requests...). 58f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * System state changes and user actions are notified to audio policy 59f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * manager with methods of the audio_policy. 60f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 61f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * - process get_output() queries received when AudioTrack objects are 62f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * created: Those queries return a handler on an output that has been 63f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * selected, configured and opened by the audio policy manager and that 64f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * must be used by the AudioTrack when registering to the AudioFlinger 65f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * with the createTrack() method. 66f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * When the AudioTrack object is released, a release_output() query 67f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * is received and the audio policy manager can decide to close or 68f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * reconfigure the output depending on other streams using this output and 69f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * current system state. 70f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 71f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * - similarly process get_input() and release_input() queries received from 72f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * AudioRecord objects and configure audio inputs. 73f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * - process volume control requests: the stream volume is converted from 74f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * an index value (received from UI) to a float value applicable to each 75f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * output as a function of platform specific settings and current output 76f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * route (destination device). It also make sure that streams are not 77f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * muted if not allowed (e.g. camera shutter sound in some countries). 78f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 79f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 80f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin/* XXX: this should be defined OUTSIDE of frameworks/base */ 81f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavinstruct effect_descriptor_s; 82f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 83f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavinstruct audio_policy { 84f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* 85f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * configuration functions 86f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 87f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 88f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* indicate a change in device connection status */ 89f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*set_device_connection_state)(struct audio_policy *pol, 90f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_devices_t device, 91f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_policy_dev_state_t state, 92f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin const char *device_address); 93f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 94ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent /* retrieve a device connection status */ 95f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_policy_dev_state_t (*get_device_connection_state)( 96f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin const struct audio_policy *pol, 97f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_devices_t device, 98f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin const char *device_address); 99f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 100f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* indicate a change in phone state. Valid phones states are defined 101f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * by audio_mode_t */ 1026df641e269639dbb81bb1c19f47d3b9e5e3ff7d7Glenn Kasten void (*set_phone_state)(struct audio_policy *pol, audio_mode_t state); 103f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 104080a80212b6ec954fe8a424d9fb286c5cf1d5021Glenn Kasten /* deprecated, never called (was "indicate a change in ringer mode") */ 105f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin void (*set_ringer_mode)(struct audio_policy *pol, uint32_t mode, 106f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin uint32_t mask); 107f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 108f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* force using a specific device category for the specified usage */ 109f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin void (*set_force_use)(struct audio_policy *pol, 110f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_policy_force_use_t usage, 111f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_policy_forced_cfg_t config); 112f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 113ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent /* retrieve current device category forced for a given usage */ 114f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_policy_forced_cfg_t (*get_force_use)(const struct audio_policy *pol, 115f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_policy_force_use_t usage); 116f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 117f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* if can_mute is true, then audio streams that are marked ENFORCED_AUDIBLE 118f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * can still be muted. */ 119f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin void (*set_can_mute_enforced_audible)(struct audio_policy *pol, 120f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin bool can_mute); 121f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 122f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* check proper initialization */ 123f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*init_check)(const struct audio_policy *pol); 124f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 125f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* 126f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * Audio routing query functions 127f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 128f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 1290cacd8d44b3f6ff6ec947bb6b2db1e382ee73bdbGlenn Kasten /* request an output appropriate for playback of the supplied stream type and 130f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * parameters */ 131f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t (*get_output)(struct audio_policy *pol, 132f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream, 133f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin uint32_t samplingRate, 134fe79eb3f06967f863a637e546eb4421d0da2283bGlenn Kasten audio_format_t format, 135a635449697a2df5de98e72cfc24e926b641d5544Glenn Kasten audio_channel_mask_t channelMask, 136da4b0b26d170971448fdb04817b308900b5a6dd8Eric Laurent audio_output_flags_t flags); 137f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 138f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* indicates to the audio policy manager that the output starts being used 139f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * by corresponding stream. */ 140f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*start_output)(struct audio_policy *pol, 141f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t output, 142f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream, 143f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int session); 144f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 145f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* indicates to the audio policy manager that the output stops being used 146f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * by corresponding stream. */ 147f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*stop_output)(struct audio_policy *pol, 148f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t output, 149f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream, 150f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int session); 151f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 152f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* releases the output. */ 153f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin void (*release_output)(struct audio_policy *pol, audio_io_handle_t output); 154f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 155ae2e42b2447d011bd6cf9d5b4413dd3557de0035Glenn Kasten /* request an input appropriate for record from the supplied device with 156f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * supplied parameters. */ 157ae2e42b2447d011bd6cf9d5b4413dd3557de0035Glenn Kasten audio_io_handle_t (*get_input)(struct audio_policy *pol, audio_source_t inputSource, 158f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin uint32_t samplingRate, 159fe79eb3f06967f863a637e546eb4421d0da2283bGlenn Kasten audio_format_t format, 160a635449697a2df5de98e72cfc24e926b641d5544Glenn Kasten audio_channel_mask_t channelMask, 161f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_in_acoustics_t acoustics); 162f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 163f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* indicates to the audio policy manager that the input starts being used */ 164f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*start_input)(struct audio_policy *pol, audio_io_handle_t input); 165f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 166f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* indicates to the audio policy manager that the input stops being used. */ 167f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*stop_input)(struct audio_policy *pol, audio_io_handle_t input); 168f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 169f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* releases the input. */ 170f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin void (*release_input)(struct audio_policy *pol, audio_io_handle_t input); 171f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 172f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* 173f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * volume control functions 174f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 175f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 176f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* initialises stream volume conversion parameters by specifying volume 177ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent * index range. The index range for each stream is defined by AudioService. */ 178f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin void (*init_stream_volume)(struct audio_policy *pol, 179f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream, 180f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int index_min, 181f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int index_max); 182f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 183f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* sets the new stream volume at a level corresponding to the supplied 184ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent * index. The index is within the range specified by init_stream_volume() */ 185f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*set_stream_volume_index)(struct audio_policy *pol, 186f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream, 187f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int index); 188f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 189ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent /* retrieve current volume index for the specified stream */ 190f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*get_stream_volume_index)(const struct audio_policy *pol, 191f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream, 192f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int *index); 193f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 194ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent /* sets the new stream volume at a level corresponding to the supplied 195ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent * index for the specified device. 196ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent * The index is within the range specified by init_stream_volume() */ 197ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent int (*set_stream_volume_index_for_device)(struct audio_policy *pol, 198ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent audio_stream_type_t stream, 199ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent int index, 200ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent audio_devices_t device); 201ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent 202ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent /* retrieve current volume index for the specified stream for the specified device */ 203ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent int (*get_stream_volume_index_for_device)(const struct audio_policy *pol, 204ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent audio_stream_type_t stream, 205ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent int *index, 206ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent audio_devices_t device); 207ca20b17b419eec2b196877be38f9c4290449aeacEric Laurent 208f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* return the strategy corresponding to a given stream type */ 209f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin uint32_t (*get_strategy_for_stream)(const struct audio_policy *pol, 210f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream); 211f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 212f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* return the enabled output devices for the given stream type */ 21383c62ce4e319a11d14a27c6368811f9efc1e8c5aEric Laurent audio_devices_t (*get_devices_for_stream)(const struct audio_policy *pol, 214f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream); 215f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 216f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* Audio effect management */ 217f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t (*get_output_for_effect)(struct audio_policy *pol, 21848915acb392773c1fcb86e2711eab468410a0baaGlenn Kasten const struct effect_descriptor_s *desc); 219f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 220f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*register_effect)(struct audio_policy *pol, 22148915acb392773c1fcb86e2711eab468410a0baaGlenn Kasten const struct effect_descriptor_s *desc, 222f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t output, 223f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin uint32_t strategy, 224f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int session, 225f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int id); 226f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 227f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*unregister_effect)(struct audio_policy *pol, int id); 228f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 22978d2c69af4ab35ac6ae8e78fc3a61e7023a60769Eric Laurent int (*set_effect_enabled)(struct audio_policy *pol, int id, bool enabled); 23078d2c69af4ab35ac6ae8e78fc3a61e7023a60769Eric Laurent 231f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin bool (*is_stream_active)(const struct audio_policy *pol, 2325161a847dd2108bec49f1ce3fa1d1c3e3cd0c851Glenn Kasten audio_stream_type_t stream, 233f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin uint32_t in_past_ms); 234f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 23520c7f50cd5d60ee7d76f2f502866187992e7675bJean-Michel Trivi bool (*is_source_active)(const struct audio_policy *pol, 23620c7f50cd5d60ee7d76f2f502866187992e7675bJean-Michel Trivi audio_source_t source); 23720c7f50cd5d60ee7d76f2f502866187992e7675bJean-Michel Trivi 238f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* dump state */ 239f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*dump)(const struct audio_policy *pol, int fd); 240f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin}; 241f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 242c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent/* audio hw module handle used by load_hw_module(), open_output_on_module() 243c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent * and open_input_on_module() */ 244c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurenttypedef int audio_module_handle_t; 245c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent 246f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavinstruct audio_policy_service_ops { 247f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* 248f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * Audio output Control functions 249f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 250f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 251f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* Opens an audio output with the requested parameters. 252f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 253f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * The parameter values can indicate to use the default values in case the 254f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * audio policy manager has no specific requirements for the output being 255f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * opened. 256f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 257f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * When the function returns, the parameter values reflect the actual 258f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * values used by the audio hardware output stream. 259f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 260f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * The audio policy manager can check if the proposed parameters are 261f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * suitable or not and act accordingly. 262f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 263f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t (*open_output)(void *service, 264c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_devices_t *pDevices, 265f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin uint32_t *pSamplingRate, 266fe79eb3f06967f863a637e546eb4421d0da2283bGlenn Kasten audio_format_t *pFormat, 267c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_channel_mask_t *pChannelMask, 268f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin uint32_t *pLatencyMs, 269da4b0b26d170971448fdb04817b308900b5a6dd8Eric Laurent audio_output_flags_t flags); 270f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 271f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* creates a special output that is duplicated to the two outputs passed as 272f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * arguments. The duplication is performed by 273f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * a special mixer thread in the AudioFlinger. 274f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 275f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t (*open_duplicate_output)(void *service, 276f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t output1, 277f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t output2); 278f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 279f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* closes the output stream */ 280f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*close_output)(void *service, audio_io_handle_t output); 281f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 282f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* suspends the output. 283f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 284f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * When an output is suspended, the corresponding audio hardware output 285f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * stream is placed in standby and the AudioTracks attached to the mixer 286f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * thread are still processed but the output mix is discarded. 287f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 288f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*suspend_output)(void *service, audio_io_handle_t output); 289f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 290f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* restores a suspended output. */ 291f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*restore_output)(void *service, audio_io_handle_t output); 292f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 293f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* */ 294f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* Audio input Control functions */ 295f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* */ 296f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 297e57a2d2ec601c54852a1cf55c11186bbf5c6c8f5Glenn Kasten /* opens an audio input 298e57a2d2ec601c54852a1cf55c11186bbf5c6c8f5Glenn Kasten * deprecated - new implementations should use open_input_on_module, 299e57a2d2ec601c54852a1cf55c11186bbf5c6c8f5Glenn Kasten * and the acoustics parameter is ignored 300e57a2d2ec601c54852a1cf55c11186bbf5c6c8f5Glenn Kasten */ 301f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t (*open_input)(void *service, 302c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_devices_t *pDevices, 303f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin uint32_t *pSamplingRate, 304fe79eb3f06967f863a637e546eb4421d0da2283bGlenn Kasten audio_format_t *pFormat, 305c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_channel_mask_t *pChannelMask, 306114c2fd2d3d953763edb4372324c993bd66cbe91Glenn Kasten audio_in_acoustics_t acoustics); 307f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 308f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* closes an audio input */ 309f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*close_input)(void *service, audio_io_handle_t input); 310f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 311f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* */ 312f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* misc control functions */ 313f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* */ 314f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 315f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* set a stream volume for a particular output. 316f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 317f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * For the same user setting, a given stream type can have different 318f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * volumes for each output (destination device) it is attached to. 319f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 320f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*set_stream_volume)(void *service, 321f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream, 322f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin float volume, 323f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t output, 324f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int delay_ms); 325f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 326f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* reroute a given stream type to the specified output */ 327f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*set_stream_output)(void *service, 328f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream, 329f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t output); 330f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 331f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* function enabling to send proprietary informations directly from audio 332f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * policy manager to audio hardware interface. */ 333f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin void (*set_parameters)(void *service, 334f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t io_handle, 335f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin const char *kv_pairs, 336f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int delay_ms); 337f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 338f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* function enabling to receive proprietary informations directly from 339f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * audio hardware interface to audio policy manager. 340f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * 341f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * Returns a pointer to a heap allocated string. The caller is responsible 3420cacd8d44b3f6ff6ec947bb6b2db1e382ee73bdbGlenn Kasten * for freeing the memory for it using free(). 343f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 344f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 345f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin char * (*get_parameters)(void *service, audio_io_handle_t io_handle, 346f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin const char *keys); 347f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 348f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* request the playback of a tone on the specified stream. 349f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * used for instance to replace notification sounds when playing over a 350f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * telephony device during a phone call. 351f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 352f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*start_tone)(void *service, 353f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_policy_tone_t tone, 354f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_stream_type_t stream); 355f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 356f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*stop_tone)(void *service); 357f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 358f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* set down link audio volume. */ 359f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*set_voice_volume)(void *service, 360f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin float volume, 361f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int delay_ms); 362f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 363f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin /* move effect to the specified output */ 364f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*move_effects)(void *service, 365f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int session, 366f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t src_output, 367f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin audio_io_handle_t dst_output); 368c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent 369c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent /* loads an audio hw module. 370c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent * 371c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent * The module name passed is the base name of the HW module library, e.g "primary" or "a2dp". 372c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent * The function returns a handle on the module that will be used to specify a particular 373c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent * module when calling open_output_on_module() or open_input_on_module() 374c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent */ 375c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_module_handle_t (*load_hw_module)(void *service, 376c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent const char *name); 377c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent 378c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent /* Opens an audio output on a particular HW module. 379c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent * 380c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent * Same as open_output() but specifying a specific HW module on which the output must be opened. 381c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent */ 382c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_io_handle_t (*open_output_on_module)(void *service, 383c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_module_handle_t module, 384c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_devices_t *pDevices, 385c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent uint32_t *pSamplingRate, 386c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_format_t *pFormat, 387c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_channel_mask_t *pChannelMask, 388c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent uint32_t *pLatencyMs, 389da4b0b26d170971448fdb04817b308900b5a6dd8Eric Laurent audio_output_flags_t flags); 390c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent 391c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent /* Opens an audio input on a particular HW module. 392c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent * 393c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent * Same as open_input() but specifying a specific HW module on which the input must be opened. 394c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent * Also removed deprecated acoustics parameter 395c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent */ 396c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_io_handle_t (*open_input_on_module)(void *service, 397c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_module_handle_t module, 398c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_devices_t *pDevices, 399c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent uint32_t *pSamplingRate, 400c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_format_t *pFormat, 401c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent audio_channel_mask_t *pChannelMask); 402c65a2fe3925f46b4d4301cef97b308dbc3e22da9Eric Laurent 403f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin}; 404f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 405f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin/**********************************************************************/ 406f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 407f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin/** 408f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM 409f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * and the fields of this data structure must begin with hw_module_t 410f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin * followed by module specific information. 411f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin */ 412f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavintypedef struct audio_policy_module { 413f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin struct hw_module_t common; 414f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin} audio_policy_module_t; 415f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 416f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavinstruct audio_policy_device { 417f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin struct hw_device_t common; 418f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 419f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*create_audio_policy)(const struct audio_policy_device *device, 420f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin struct audio_policy_service_ops *aps_ops, 421f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin void *service, 422f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin struct audio_policy **ap); 423f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 424f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin int (*destroy_audio_policy)(const struct audio_policy_device *device, 425f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin struct audio_policy *ap); 426f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin}; 427f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 428f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin/** convenience API for opening and closing a supported device */ 429f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 430f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavinstatic inline int audio_policy_dev_open(const hw_module_t* module, 431f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin struct audio_policy_device** device) 432f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin{ 433f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin return module->methods->open(module, AUDIO_POLICY_INTERFACE, 434f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin (hw_device_t**)device); 435f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin} 436f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 437f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavinstatic inline int audio_policy_dev_close(struct audio_policy_device* device) 438f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin{ 439f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin return device->common.close(&device->common); 440f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin} 441f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 442f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 443f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin__END_DECLS 444f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin 445f1504dbca386fc454b8ded7669012f3d4d27eab7Dima Zavin#endif // ANDROID_AUDIO_POLICY_INTERFACE_H 446