AudioPolicyManager.cpp revision b52c152d553556b2d227ffc943489de0c60b4b02
148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian/* 23703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall * Copyright (C) 2009 The Android Open Source Project 348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian * 448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian * Licensed under the Apache License, Version 2.0 (the "License"); 548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian * you may not use this file except in compliance with the License. 648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian * You may obtain a copy of the License at 748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian * 848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian * http://www.apache.org/licenses/LICENSE-2.0 93703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall * 103703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall * Unless required by applicable law or agreed to in writing, software 113703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall * distributed under the License is distributed on an "AS IS" BASIS, 123703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall * See the License for the specific language governing permissions and 143703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall * limitations under the License. 153703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall */ 163703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 173703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#define LOG_TAG "AudioPolicyManager" 183703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall//#define LOG_NDEBUG 0 193703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 203703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall//#define VERY_VERBOSE_LOGGING 213703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#ifdef VERY_VERBOSE_LOGGING 223703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#define ALOGVV ALOGV 233703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#else 243703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#define ALOGVV(a...) do { } while(0) 253703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#endif 263703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 273703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall// A device mask for all audio input devices that are considered "virtual" when evaluating 283703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall// active inputs in getActiveInput() 293703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL AUDIO_DEVICE_IN_REMOTE_SUBMIX 303703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall// A device mask for all audio output devices that are considered "remote" when evaluating 313703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall// active output devices in isStreamActiveRemotely() 323703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#define APM_AUDIO_OUT_DEVICE_REMOTE_ALL AUDIO_DEVICE_OUT_REMOTE_SUBMIX 333703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 343703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#include <inttypes.h> 353703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#include <math.h> 363703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 373703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#include <cutils/properties.h> 3848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian#include <utils/Log.h> 393703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#include <hardware/audio.h> 4048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian#include <hardware/audio_effect.h> 413703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#include <hardware_legacy/audio_policy_conf.h> 422b2ac210786c71bdd0ea5924d734a4b49c4a584eJesse Hall#include <media/AudioParameter.h> 433703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#include "AudioPolicyManager.h" 443703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 453703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hallnamespace android { 463703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 473703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall// ---------------------------------------------------------------------------- 483703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall// Definitions for audio_policy.conf file parsing 493703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall// ---------------------------------------------------------------------------- 503703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 513703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hallstruct StringToEnum { 522b2ac210786c71bdd0ea5924d734a4b49c4a584eJesse Hall const char *name; 533703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall uint32_t value; 543703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall}; 553703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 563703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#define STRING_TO_ENUM(string) { #string, string } 573703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 583703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 593703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hallconst StringToEnum sDeviceNameToEnumTable[] = { 603703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE), 613703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER), 623703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET), 633703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE), 643703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO), 653703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET), 663703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT), 673703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO), 683703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP), 693703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES), 703703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER), 713703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP), 723703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL), 733703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI), 743703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET), 753703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET), 7648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY), 7748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE), 7848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB), 7948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX), 8048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX), 8148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_OUT_LINE), 8248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC), 8348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPDIF), 8448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_OUT_FM), 8548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC), 8648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET), 8748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_ALL_SCO), 8848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET), 8948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL), 9048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_HDMI), 9148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL), 9248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX), 9348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC), 9448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX), 9548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET), 9648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET), 9748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY), 9848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_DEVICE), 9948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_FM_TUNER), 10048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_TV_TUNER), 1013703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall STRING_TO_ENUM(AUDIO_DEVICE_IN_LINE), 10248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_DEVICE_IN_SPDIF), 10348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian}; 10448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 10548efd950151369a5c049c8a92f36663a88206b4eMathias Agopianconst StringToEnum sFlagNameToEnumTable[] = { 10648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT), 10748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY), 10848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST), 10948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER), 11048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD), 11148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING), 11248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian}; 11348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 11448efd950151369a5c049c8a92f36663a88206b4eMathias Agopianconst StringToEnum sFormatNameToEnumTable[] = { 11548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT), 11648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT), 11748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_FORMAT_PCM_32_BIT), 11848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_24_BIT), 11948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_FORMAT_PCM_FLOAT), 12048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED), 12148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_FORMAT_MP3), 12248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_FORMAT_AAC), 12348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_FORMAT_VORBIS), 12448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian}; 12548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 12648efd950151369a5c049c8a92f36663a88206b4eMathias Agopianconst StringToEnum sOutChannelsNameToEnumTable[] = { 12748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO), 12848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO), 12948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1), 13048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1), 13148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian}; 13248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 13348efd950151369a5c049c8a92f36663a88206b4eMathias Agopianconst StringToEnum sInChannelsNameToEnumTable[] = { 13448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO), 13548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO), 13648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian STRING_TO_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK), 13748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian}; 13848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 13948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 14048efd950151369a5c049c8a92f36663a88206b4eMathias Agopianuint32_t AudioPolicyManager::stringToEnum(const struct StringToEnum *table, 14148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian size_t size, 14248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian const char *name) 14348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian{ 14448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian for (size_t i = 0; i < size; i++) { 14548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (strcmp(table[i].name, name) == 0) { 14648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGV("stringToEnum() found %s", table[i].name); 14748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return table[i].value; 14848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 14948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 15048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return 0; 15148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian} 15248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 15348efd950151369a5c049c8a92f36663a88206b4eMathias Agopianconst char *AudioPolicyManager::enumToString(const struct StringToEnum *table, 15448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian size_t size, 15548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian uint32_t value) 15648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian{ 15748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian for (size_t i = 0; i < size; i++) { 15848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (table[i].value == value) { 15948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return table[i].name; 16048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 16148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 16248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return ""; 16348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian} 16448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 16548efd950151369a5c049c8a92f36663a88206b4eMathias Agopianbool AudioPolicyManager::stringToBool(const char *value) 16648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian{ 16748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return ((strcasecmp("true", value) == 0) || (strcmp("1", value) == 0)); 16848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian} 16948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 17048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 17148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian// ---------------------------------------------------------------------------- 17248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian// AudioPolicyInterface implementation 17348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian// ---------------------------------------------------------------------------- 17448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 17548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 17648efd950151369a5c049c8a92f36663a88206b4eMathias Agopianstatus_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, 17748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian audio_policy_dev_state_t state, 17848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian const char *device_address) 17948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian{ 18048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian String8 address = String8(device_address); 18148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 18248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", device, state, device_address); 18348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 18448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // connect/disconnect only 1 device at a time 18548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 18648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 18748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // handle output devices 18848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (audio_is_output_device(device)) { 18948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian SortedVector <audio_io_handle_t> outputs; 19048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 19148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian sp<DeviceDescriptor> devDesc = new DeviceDescriptor(device, 19248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian address, 19348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 0); 19448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 1953703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 19648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // save a copy of the opened output descriptors before any output is opened or closed 19748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 19848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian mPreviousOutputs = mOutputs; 19948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian switch (state) 20048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian { 20148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // handle output device connection 20248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: 20348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (index >= 0) { 20448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGW("setDeviceConnectionState() device already connected: %x", device); 20548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return INVALID_OPERATION; 20648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 20748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGV("setDeviceConnectionState() connecting device %x", device); 20848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 20948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (checkOutputsForDevice(device, state, outputs, address) != NO_ERROR) { 21048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return INVALID_OPERATION; 21148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 21248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // outputs should never be empty here 2133703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 2143703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall "checkOutputsForDevice() returned no outputs but status OK"); 2153703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 2163703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall outputs.size()); 2173703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // register new device as available 21848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian index = mAvailableOutputDevices.add(devDesc); 2193703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (index >= 0) { 2203703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall mAvailableOutputDevices[index]->mId = nextUniqueId(); 2213703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall HwModule *module = getModuleForDevice(device); 2223703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOG_ASSERT(module != NULL, "setDeviceConnectionState():" 2233703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall "could not find HW module for device %08x", device); 2243703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall mAvailableOutputDevices[index]->mModule = module; 2253703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } else { 2263703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall return NO_MEMORY; 2273703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 2283703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 2293703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall break; 2303703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // handle output device disconnection 2313703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 2323703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (index < 0) { 23348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGW("setDeviceConnectionState() device not connected: %x", device); 23448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return INVALID_OPERATION; 23548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 23648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 23748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGV("setDeviceConnectionState() disconnecting device %x", device); 23848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // remove device from available output devices 23948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian mAvailableOutputDevices.remove(devDesc); 24048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 24148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian checkOutputsForDevice(device, state, outputs, address); 24248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // not currently handling multiple simultaneous submixes: ignoring remote submix 24348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // case and address 24448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } break; 24548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 24648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian default: 24748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGE("setDeviceConnectionState() invalid state: %x", state); 24848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return BAD_VALUE; 24948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 25048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 25148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 25248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // output is suspended before any tracks are moved to it 25348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian checkA2dpSuspend(); 25448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian checkOutputForAllStrategies(); 25548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // outputs must be closed after checkOutputForAllStrategies() is executed 25648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (!outputs.isEmpty()) { 25748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian for (size_t i = 0; i < outputs.size(); i++) { 25848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian AudioOutputDescriptor *desc = mOutputs.valueFor(outputs[i]); 25948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // close unused outputs after device disconnection or direct outputs that have been 26048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // opened by checkOutputsForDevice() to query dynamic parameters 26148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 26248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 26348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian (desc->mDirectOpenCount == 0))) { 26448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian closeOutput(outputs[i]); 26548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 26648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 26748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // check again after closing A2DP output to reset mA2dpSuspended if needed 26848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian checkA2dpSuspend(); 26948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 27048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 27148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian updateDevicesAndOutputs(); 27248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian for (size_t i = 0; i < mOutputs.size(); i++) { 27348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // do not force device change on duplicated output because if device is 0, it will 27448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // also force a device 0 for the two outputs it is duplicated to which may override 27548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // a valid device selection on those outputs. 27648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian setOutputDevice(mOutputs.keyAt(i), 27748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian getNewOutputDevice(mOutputs.keyAt(i), true /*fromCache*/), 27848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian !mOutputs.valueAt(i)->isDuplicated(), 27948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 0); 28048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 28148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 28248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (device == AUDIO_DEVICE_OUT_WIRED_HEADSET) { 28348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian device = AUDIO_DEVICE_IN_WIRED_HEADSET; 28448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } else if (device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO || 28548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET || 28648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT) { 28748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 28848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } else { 28948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian mpClientInterface->onAudioPortListUpdate(); 29048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return NO_ERROR; 29148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 29248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } // end if is output device 29348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 29448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // handle input devices 29548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (audio_is_input_device(device)) { 29648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian SortedVector <audio_io_handle_t> inputs; 29748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 29848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian sp<DeviceDescriptor> devDesc = new DeviceDescriptor(device, 29948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian address, 30048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 0); 30148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 30248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ssize_t index = mAvailableInputDevices.indexOf(devDesc); 30348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian switch (state) 30448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian { 30548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian // handle input device connection 30648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 30748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (index >= 0) { 30848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGW("setDeviceConnectionState() device already connected: %d", device); 30948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return INVALID_OPERATION; 31048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 31148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian HwModule *module = getModuleForDevice(device); 31248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (module == NULL) { 31348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 31448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian device); 31548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return INVALID_OPERATION; 31648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 31748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (checkInputsForDevice(device, state, inputs, address) != NO_ERROR) { 31848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return INVALID_OPERATION; 31948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 32048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 32148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian index = mAvailableInputDevices.add(devDesc); 32248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (index >= 0) { 3233703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall mAvailableInputDevices[index]->mId = nextUniqueId(); 3243703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall mAvailableInputDevices[index]->mModule = module; 3253703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } else { 3263703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall return NO_MEMORY; 3273703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 3283703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } break; 32948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 3303703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // handle input device disconnection 33148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 33248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (index < 0) { 33348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGW("setDeviceConnectionState() device not connected: %d", device); 33448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return INVALID_OPERATION; 33548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 33648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian checkInputsForDevice(device, state, inputs, address); 33748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian mAvailableInputDevices.remove(devDesc); 33848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } break; 33948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 34048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian default: 34148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGE("setDeviceConnectionState() invalid state: %x", state); 34248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return BAD_VALUE; 34348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 34448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 34548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian closeAllInputs(); 34648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 34748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian mpClientInterface->onAudioPortListUpdate(); 34848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return NO_ERROR; 34948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } // end if is input device 35048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 35148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGW("setDeviceConnectionState() invalid device: %x", device); 35248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return BAD_VALUE; 35348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian} 35448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 35548efd950151369a5c049c8a92f36663a88206b4eMathias Agopianaudio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 35648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian const char *device_address) 35748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian{ 35848efd950151369a5c049c8a92f36663a88206b4eMathias Agopian audio_policy_dev_state_t state = AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 35948efd950151369a5c049c8a92f36663a88206b4eMathias Agopian String8 address = String8(device_address); 3603703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall sp<DeviceDescriptor> devDesc = new DeviceDescriptor(device, 3613703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall String8(device_address), 3623703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 0); 36348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ssize_t index; 36448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian DeviceVector *deviceVector; 36548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 36648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (audio_is_output_device(device)) { 36748efd950151369a5c049c8a92f36663a88206b4eMathias Agopian deviceVector = &mAvailableOutputDevices; 3683703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } else if (audio_is_input_device(device)) { 3693703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall deviceVector = &mAvailableInputDevices; 37048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } else { 3713703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGW("getDeviceConnectionState() invalid device type %08x", device); 3723703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 37348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 37448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian 37548efd950151369a5c049c8a92f36663a88206b4eMathias Agopian index = deviceVector->indexOf(devDesc); 37648efd950151369a5c049c8a92f36663a88206b4eMathias Agopian if (index >= 0) { 3773703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall return AUDIO_POLICY_DEVICE_STATE_AVAILABLE; 3783703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } else { 3793703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 3803703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 3813703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall} 3823703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 3833703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hallvoid AudioPolicyManager::setPhoneState(audio_mode_t state) 3843703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall{ 3853703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGV("setPhoneState() state %d", state); 3863703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall audio_devices_t newDevice = AUDIO_DEVICE_NONE; 3873703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (state < 0 || state >= AUDIO_MODE_CNT) { 3883703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGW("setPhoneState() invalid state %d", state); 3893703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall return; 3903703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 3913703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 3923703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (state == mPhoneState ) { 3933703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGW("setPhoneState() setting same state %d", state); 3943703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall return; 3953703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 3963703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 3973703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // if leaving call state, handle special case of active streams 3983703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // pertaining to sonification strategy see handleIncallSonification() 3993703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (isInCall()) { 4003703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGV("setPhoneState() in call state management: new state is %d", state); 4013703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4023703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall handleIncallSonification((audio_stream_type_t)stream, false, true); 4033703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4043703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4053703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 4063703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // store previous phone state for management of sonification strategy below 4073703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall int oldState = mPhoneState; 4083703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall mPhoneState = state; 4093703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall bool force = false; 4103703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 4113703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // are we entering or starting a call 4123703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (!isStateInCall(oldState) && isStateInCall(state)) { 4133703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGV(" Entering call in setPhoneState()"); 4143703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // force routing command to audio hardware when starting a call 4153703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // even if no device change is needed 4163703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall force = true; 4173703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 4183703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 4193703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]; 4203703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4213703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } else if (isStateInCall(oldState) && !isStateInCall(state)) { 4223703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGV(" Exiting call in setPhoneState()"); 4233703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // force routing command to audio hardware when exiting a call 4243703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // even if no device change is needed 4253703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall force = true; 4263703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 4273703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 4283703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall sVolumeProfiles[AUDIO_STREAM_DTMF][j]; 4293703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4303703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } else if (isStateInCall(state) && (state != oldState)) { 4313703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGV(" Switching between telephony and VoIP in setPhoneState()"); 4323703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // force routing command to audio hardware when switching between telephony and VoIP 4333703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // even if no device change is needed 4343703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall force = true; 4353703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4363703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 4373703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // check for device and output changes triggered by new phone state 4383703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 4393703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall checkA2dpSuspend(); 4403703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall checkOutputForAllStrategies(); 4413703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall updateDevicesAndOutputs(); 4423703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 4433703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall AudioOutputDescriptor *hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 4443703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 4453703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // force routing command to audio hardware when ending call 4463703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // even if no device change is needed 4473703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (isStateInCall(oldState) && newDevice == AUDIO_DEVICE_NONE) { 4483703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall newDevice = hwOutputDesc->device(); 4493703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4503703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 4513703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall int delayMs = 0; 4523703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (isStateInCall(state)) { 4533703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall nsecs_t sysTime = systemTime(); 4543703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall for (size_t i = 0; i < mOutputs.size(); i++) { 4553703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall AudioOutputDescriptor *desc = mOutputs.valueAt(i); 4563703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // mute media and sonification strategies and delay device switch by the largest 4573703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // latency of any output where either strategy is active. 4583703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // This avoid sending the ring tone or music tail into the earpiece or headset. 4593703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if ((desc->isStrategyActive(STRATEGY_MEDIA, 4603703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall SONIFICATION_HEADSET_MUSIC_DELAY, 4613703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall sysTime) || 4623703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall desc->isStrategyActive(STRATEGY_SONIFICATION, 4633703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall SONIFICATION_HEADSET_MUSIC_DELAY, 4643703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall sysTime)) && 4653703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall (delayMs < (int)desc->mLatency*2)) { 4663703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall delayMs = desc->mLatency*2; 4673703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4683703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 4693703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 4703703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 4713703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 4723703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 4733703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 4743703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4753703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4763703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 4773703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // change routing is necessary 4783703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall setOutputDevice(mPrimaryOutput, newDevice, force, delayMs); 4793703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 4803703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // if entering in call state, handle special case of active streams 4813703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // pertaining to sonification strategy see handleIncallSonification() 4823703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (isStateInCall(state)) { 4833703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGV("setPhoneState() in call state management: new state is %d", state); 4843703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4853703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall handleIncallSonification((audio_stream_type_t)stream, true, true); 4863703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4873703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4883703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 4893703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 4903703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (state == AUDIO_MODE_RINGTONE && 4913703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 4923703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall mLimitRingtoneVolume = true; 4933703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } else { 4943703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall mLimitRingtoneVolume = false; 4953703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 4963703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall} 4973703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 4983703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hallvoid AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 4993703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall audio_policy_forced_cfg_t config) 5003703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall{ 5013703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); 5023703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall 5033703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall bool forceVolumeReeval = false; 5043703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall switch(usage) { 5053703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall case AUDIO_POLICY_FORCE_FOR_COMMUNICATION: 5063703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO && 5073703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall config != AUDIO_POLICY_FORCE_NONE) { 5083703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); 5093703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall return; 5103703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall } 5113703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall forceVolumeReeval = true; 5123703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall mForceUse[usage] = config; 5133703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall break; 5143703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall case AUDIO_POLICY_FORCE_FOR_MEDIA: 5153703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP && 5163703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 5173703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 5183703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE && 5193703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall config != AUDIO_POLICY_FORCE_NO_BT_A2DP) { 52048efd950151369a5c049c8a92f36663a88206b4eMathias Agopian ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); 52148efd950151369a5c049c8a92f36663a88206b4eMathias Agopian return; 52248efd950151369a5c049c8a92f36663a88206b4eMathias Agopian } 52348efd950151369a5c049c8a92f36663a88206b4eMathias Agopian mForceUse[usage] = config; 52448efd950151369a5c049c8a92f36663a88206b4eMathias Agopian break; 5253703f7f014846b8bf83e08a8bf25450dd0dcd7afJesse Hall case AUDIO_POLICY_FORCE_FOR_RECORD: 526 if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 527 config != AUDIO_POLICY_FORCE_NONE) { 528 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); 529 return; 530 } 531 mForceUse[usage] = config; 532 break; 533 case AUDIO_POLICY_FORCE_FOR_DOCK: 534 if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK && 535 config != AUDIO_POLICY_FORCE_BT_DESK_DOCK && 536 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 537 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 538 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) { 539 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); 540 } 541 forceVolumeReeval = true; 542 mForceUse[usage] = config; 543 break; 544 case AUDIO_POLICY_FORCE_FOR_SYSTEM: 545 if (config != AUDIO_POLICY_FORCE_NONE && 546 config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 547 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); 548 } 549 forceVolumeReeval = true; 550 mForceUse[usage] = config; 551 break; 552 default: 553 ALOGW("setForceUse() invalid usage %d", usage); 554 break; 555 } 556 557 // check for device and output changes triggered by new force usage 558 checkA2dpSuspend(); 559 checkOutputForAllStrategies(); 560 updateDevicesAndOutputs(); 561 for (size_t i = 0; i < mOutputs.size(); i++) { 562 audio_io_handle_t output = mOutputs.keyAt(i); 563 audio_devices_t newDevice = getNewOutputDevice(output, true /*fromCache*/); 564 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 565 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 566 applyStreamVolumes(output, newDevice, 0, true); 567 } 568 } 569 570 audio_io_handle_t activeInput = getActiveInput(); 571 if (activeInput != 0) { 572 setInputDevice(activeInput, getNewInputDevice(activeInput)); 573 } 574 575} 576 577audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 578{ 579 return mForceUse[usage]; 580} 581 582void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 583{ 584 ALOGV("setSystemProperty() property %s, value %s", property, value); 585} 586 587// Find a direct output profile compatible with the parameters passed, even if the input flags do 588// not explicitly request a direct output 589sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getProfileForDirectOutput( 590 audio_devices_t device, 591 uint32_t samplingRate, 592 audio_format_t format, 593 audio_channel_mask_t channelMask, 594 audio_output_flags_t flags) 595{ 596 for (size_t i = 0; i < mHwModules.size(); i++) { 597 if (mHwModules[i]->mHandle == 0) { 598 continue; 599 } 600 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 601 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 602 bool found = false; 603 if (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) { 604 if (profile->isCompatibleProfile(device, samplingRate, format, 605 channelMask, 606 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) { 607 found = true; 608 } 609 } else { 610 if (profile->isCompatibleProfile(device, samplingRate, format, 611 channelMask, 612 AUDIO_OUTPUT_FLAG_DIRECT)) { 613 found = true; 614 } 615 } 616 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) { 617 return profile; 618 } 619 } 620 } 621 return 0; 622} 623 624audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 625 uint32_t samplingRate, 626 audio_format_t format, 627 audio_channel_mask_t channelMask, 628 audio_output_flags_t flags, 629 const audio_offload_info_t *offloadInfo) 630{ 631 audio_io_handle_t output = 0; 632 uint32_t latency = 0; 633 routing_strategy strategy = getStrategy(stream); 634 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 635 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 636 device, stream, samplingRate, format, channelMask, flags); 637 638#ifdef AUDIO_POLICY_TEST 639 if (mCurOutput != 0) { 640 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 641 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 642 643 if (mTestOutputs[mCurOutput] == 0) { 644 ALOGV("getOutput() opening test output"); 645 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(NULL); 646 outputDesc->mDevice = mTestDevice; 647 outputDesc->mSamplingRate = mTestSamplingRate; 648 outputDesc->mFormat = mTestFormat; 649 outputDesc->mChannelMask = mTestChannels; 650 outputDesc->mLatency = mTestLatencyMs; 651 outputDesc->mFlags = 652 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 653 outputDesc->mRefCount[stream] = 0; 654 mTestOutputs[mCurOutput] = mpClientInterface->openOutput(0, &outputDesc->mDevice, 655 &outputDesc->mSamplingRate, 656 &outputDesc->mFormat, 657 &outputDesc->mChannelMask, 658 &outputDesc->mLatency, 659 outputDesc->mFlags, 660 offloadInfo); 661 if (mTestOutputs[mCurOutput]) { 662 AudioParameter outputCmd = AudioParameter(); 663 outputCmd.addInt(String8("set_id"),mCurOutput); 664 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 665 addOutput(mTestOutputs[mCurOutput], outputDesc); 666 } 667 } 668 return mTestOutputs[mCurOutput]; 669 } 670#endif //AUDIO_POLICY_TEST 671 672 // open a direct output if required by specified parameters 673 //force direct flag if offload flag is set: offloading implies a direct output stream 674 // and all common behaviors are driven by checking only the direct flag 675 // this should normally be set appropriately in the policy configuration file 676 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 677 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 678 } 679 680 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 681 // creating an offloaded track and tearing it down immediately after start when audioflinger 682 // detects there is an active non offloadable effect. 683 // FIXME: We should check the audio session here but we do not have it in this context. 684 // This may prevent offloading in rare situations where effects are left active by apps 685 // in the background. 686 sp<IOProfile> profile; 687 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 688 !isNonOffloadableEffectEnabled()) { 689 profile = getProfileForDirectOutput(device, 690 samplingRate, 691 format, 692 channelMask, 693 (audio_output_flags_t)flags); 694 } 695 696 if (profile != 0) { 697 AudioOutputDescriptor *outputDesc = NULL; 698 699 for (size_t i = 0; i < mOutputs.size(); i++) { 700 AudioOutputDescriptor *desc = mOutputs.valueAt(i); 701 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 702 outputDesc = desc; 703 // reuse direct output if currently open and configured with same parameters 704 if ((samplingRate == outputDesc->mSamplingRate) && 705 (format == outputDesc->mFormat) && 706 (channelMask == outputDesc->mChannelMask)) { 707 outputDesc->mDirectOpenCount++; 708 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 709 return mOutputs.keyAt(i); 710 } 711 } 712 } 713 // close direct output if currently open and configured with different parameters 714 if (outputDesc != NULL) { 715 closeOutput(outputDesc->mIoHandle); 716 } 717 outputDesc = new AudioOutputDescriptor(profile); 718 outputDesc->mDevice = device; 719 outputDesc->mSamplingRate = samplingRate; 720 outputDesc->mFormat = format; 721 outputDesc->mChannelMask = channelMask; 722 outputDesc->mLatency = 0; 723 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags); 724 outputDesc->mRefCount[stream] = 0; 725 outputDesc->mStopTime[stream] = 0; 726 outputDesc->mDirectOpenCount = 1; 727 output = mpClientInterface->openOutput(profile->mModule->mHandle, 728 &outputDesc->mDevice, 729 &outputDesc->mSamplingRate, 730 &outputDesc->mFormat, 731 &outputDesc->mChannelMask, 732 &outputDesc->mLatency, 733 outputDesc->mFlags, 734 offloadInfo); 735 736 // only accept an output with the requested parameters 737 if (output == 0 || 738 (samplingRate != 0 && samplingRate != outputDesc->mSamplingRate) || 739 (format != AUDIO_FORMAT_DEFAULT && format != outputDesc->mFormat) || 740 (channelMask != 0 && channelMask != outputDesc->mChannelMask)) { 741 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 742 "format %d %d, channelMask %04x %04x", output, samplingRate, 743 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 744 outputDesc->mChannelMask); 745 if (output != 0) { 746 mpClientInterface->closeOutput(output); 747 } 748 delete outputDesc; 749 return 0; 750 } 751 audio_io_handle_t srcOutput = getOutputForEffect(); 752 addOutput(output, outputDesc); 753 audio_io_handle_t dstOutput = getOutputForEffect(); 754 if (dstOutput == output) { 755 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 756 } 757 mPreviousOutputs = mOutputs; 758 ALOGV("getOutput() returns new direct output %d", output); 759 mpClientInterface->onAudioPortListUpdate(); 760 return output; 761 } 762 763 // ignoring channel mask due to downmix capability in mixer 764 765 // open a non direct output 766 767 // for non direct outputs, only PCM is supported 768 if (audio_is_linear_pcm(format)) { 769 // get which output is suitable for the specified stream. The actual 770 // routing change will happen when startOutput() will be called 771 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 772 773 output = selectOutput(outputs, flags); 774 } 775 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 776 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 777 778 ALOGV("getOutput() returns output %d", output); 779 780 return output; 781} 782 783audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 784 audio_output_flags_t flags) 785{ 786 // select one output among several that provide a path to a particular device or set of 787 // devices (the list was previously build by getOutputsForDevice()). 788 // The priority is as follows: 789 // 1: the output with the highest number of requested policy flags 790 // 2: the primary output 791 // 3: the first output in the list 792 793 if (outputs.size() == 0) { 794 return 0; 795 } 796 if (outputs.size() == 1) { 797 return outputs[0]; 798 } 799 800 int maxCommonFlags = 0; 801 audio_io_handle_t outputFlags = 0; 802 audio_io_handle_t outputPrimary = 0; 803 804 for (size_t i = 0; i < outputs.size(); i++) { 805 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(outputs[i]); 806 if (!outputDesc->isDuplicated()) { 807 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 808 if (commonFlags > maxCommonFlags) { 809 outputFlags = outputs[i]; 810 maxCommonFlags = commonFlags; 811 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 812 } 813 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 814 outputPrimary = outputs[i]; 815 } 816 } 817 } 818 819 if (outputFlags != 0) { 820 return outputFlags; 821 } 822 if (outputPrimary != 0) { 823 return outputPrimary; 824 } 825 826 return outputs[0]; 827} 828 829status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 830 audio_stream_type_t stream, 831 int session) 832{ 833 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session); 834 ssize_t index = mOutputs.indexOfKey(output); 835 if (index < 0) { 836 ALOGW("startOutput() unknown output %d", output); 837 return BAD_VALUE; 838 } 839 840 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index); 841 842 // increment usage count for this stream on the requested output: 843 // NOTE that the usage count is the same for duplicated output and hardware output which is 844 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 845 outputDesc->changeRefCount(stream, 1); 846 847 if (outputDesc->mRefCount[stream] == 1) { 848 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 849 routing_strategy strategy = getStrategy(stream); 850 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 851 (strategy == STRATEGY_SONIFICATION_RESPECTFUL); 852 uint32_t waitMs = 0; 853 bool force = false; 854 for (size_t i = 0; i < mOutputs.size(); i++) { 855 AudioOutputDescriptor *desc = mOutputs.valueAt(i); 856 if (desc != outputDesc) { 857 // force a device change if any other output is managed by the same hw 858 // module and has a current device selection that differs from selected device. 859 // In this case, the audio HAL must receive the new device selection so that it can 860 // change the device currently selected by the other active output. 861 if (outputDesc->sharesHwModuleWith(desc) && 862 desc->device() != newDevice) { 863 force = true; 864 } 865 // wait for audio on other active outputs to be presented when starting 866 // a notification so that audio focus effect can propagate. 867 uint32_t latency = desc->latency(); 868 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 869 waitMs = latency; 870 } 871 } 872 } 873 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 874 875 // handle special case for sonification while in call 876 if (isInCall()) { 877 handleIncallSonification(stream, true, false); 878 } 879 880 // apply volume rules for current stream and device if necessary 881 checkAndSetVolume(stream, 882 mStreams[stream].getVolumeIndex(newDevice), 883 output, 884 newDevice); 885 886 // update the outputs if starting an output with a stream that can affect notification 887 // routing 888 handleNotificationRoutingForStream(stream); 889 if (waitMs > muteWaitMs) { 890 usleep((waitMs - muteWaitMs) * 2 * 1000); 891 } 892 } 893 return NO_ERROR; 894} 895 896 897status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 898 audio_stream_type_t stream, 899 int session) 900{ 901 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 902 ssize_t index = mOutputs.indexOfKey(output); 903 if (index < 0) { 904 ALOGW("stopOutput() unknown output %d", output); 905 return BAD_VALUE; 906 } 907 908 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index); 909 910 // handle special case for sonification while in call 911 if (isInCall()) { 912 handleIncallSonification(stream, false, false); 913 } 914 915 if (outputDesc->mRefCount[stream] > 0) { 916 // decrement usage count of this stream on the output 917 outputDesc->changeRefCount(stream, -1); 918 // store time at which the stream was stopped - see isStreamActive() 919 if (outputDesc->mRefCount[stream] == 0) { 920 outputDesc->mStopTime[stream] = systemTime(); 921 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 922 // delay the device switch by twice the latency because stopOutput() is executed when 923 // the track stop() command is received and at that time the audio track buffer can 924 // still contain data that needs to be drained. The latency only covers the audio HAL 925 // and kernel buffers. Also the latency does not always include additional delay in the 926 // audio path (audio DSP, CODEC ...) 927 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 928 929 // force restoring the device selection on other active outputs if it differs from the 930 // one being selected for this output 931 for (size_t i = 0; i < mOutputs.size(); i++) { 932 audio_io_handle_t curOutput = mOutputs.keyAt(i); 933 AudioOutputDescriptor *desc = mOutputs.valueAt(i); 934 if (curOutput != output && 935 desc->isActive() && 936 outputDesc->sharesHwModuleWith(desc) && 937 (newDevice != desc->device())) { 938 setOutputDevice(curOutput, 939 getNewOutputDevice(curOutput, false /*fromCache*/), 940 true, 941 outputDesc->mLatency*2); 942 } 943 } 944 // update the outputs if stopping one with a stream that can affect notification routing 945 handleNotificationRoutingForStream(stream); 946 } 947 return NO_ERROR; 948 } else { 949 ALOGW("stopOutput() refcount is already 0 for output %d", output); 950 return INVALID_OPERATION; 951 } 952} 953 954void AudioPolicyManager::releaseOutput(audio_io_handle_t output) 955{ 956 ALOGV("releaseOutput() %d", output); 957 ssize_t index = mOutputs.indexOfKey(output); 958 if (index < 0) { 959 ALOGW("releaseOutput() releasing unknown output %d", output); 960 return; 961 } 962 963#ifdef AUDIO_POLICY_TEST 964 int testIndex = testOutputIndex(output); 965 if (testIndex != 0) { 966 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index); 967 if (outputDesc->isActive()) { 968 mpClientInterface->closeOutput(output); 969 delete mOutputs.valueAt(index); 970 mOutputs.removeItem(output); 971 mTestOutputs[testIndex] = 0; 972 } 973 return; 974 } 975#endif //AUDIO_POLICY_TEST 976 977 AudioOutputDescriptor *desc = mOutputs.valueAt(index); 978 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 979 if (desc->mDirectOpenCount <= 0) { 980 ALOGW("releaseOutput() invalid open count %d for output %d", 981 desc->mDirectOpenCount, output); 982 return; 983 } 984 if (--desc->mDirectOpenCount == 0) { 985 closeOutput(output); 986 // If effects where present on the output, audioflinger moved them to the primary 987 // output by default: move them back to the appropriate output. 988 audio_io_handle_t dstOutput = getOutputForEffect(); 989 if (dstOutput != mPrimaryOutput) { 990 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput); 991 } 992 mpClientInterface->onAudioPortListUpdate(); 993 } 994 } 995} 996 997 998audio_io_handle_t AudioPolicyManager::getInput(audio_source_t inputSource, 999 uint32_t samplingRate, 1000 audio_format_t format, 1001 audio_channel_mask_t channelMask, 1002 audio_in_acoustics_t acoustics) 1003{ 1004 audio_io_handle_t input = 0; 1005 audio_devices_t device = getDeviceForInputSource(inputSource); 1006 1007 ALOGV("getInput() inputSource %d, samplingRate %d, format %d, channelMask %x, acoustics %x", 1008 inputSource, samplingRate, format, channelMask, acoustics); 1009 1010 if (device == AUDIO_DEVICE_NONE) { 1011 ALOGW("getInput() could not find device for inputSource %d", inputSource); 1012 return 0; 1013 } 1014 1015 // adapt channel selection to input source 1016 switch(inputSource) { 1017 case AUDIO_SOURCE_VOICE_UPLINK: 1018 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1019 break; 1020 case AUDIO_SOURCE_VOICE_DOWNLINK: 1021 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1022 break; 1023 case AUDIO_SOURCE_VOICE_CALL: 1024 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1025 break; 1026 default: 1027 break; 1028 } 1029 1030 sp<IOProfile> profile = getInputProfile(device, 1031 samplingRate, 1032 format, 1033 channelMask); 1034 if (profile == 0) { 1035 ALOGW("getInput() could not find profile for device %04x, samplingRate %d, format %d, " 1036 "channelMask %04x", 1037 device, samplingRate, format, channelMask); 1038 return 0; 1039 } 1040 1041 if (profile->mModule->mHandle == 0) { 1042 ALOGE("getInput(): HW module %s not opened", profile->mModule->mName); 1043 return 0; 1044 } 1045 1046 AudioInputDescriptor *inputDesc = new AudioInputDescriptor(profile); 1047 1048 inputDesc->mInputSource = inputSource; 1049 inputDesc->mDevice = device; 1050 inputDesc->mSamplingRate = samplingRate; 1051 inputDesc->mFormat = format; 1052 inputDesc->mChannelMask = channelMask; 1053 inputDesc->mRefCount = 0; 1054 input = mpClientInterface->openInput(profile->mModule->mHandle, 1055 &inputDesc->mDevice, 1056 &inputDesc->mSamplingRate, 1057 &inputDesc->mFormat, 1058 &inputDesc->mChannelMask); 1059 1060 // only accept input with the exact requested set of parameters 1061 if (input == 0 || 1062 (samplingRate != inputDesc->mSamplingRate) || 1063 (format != inputDesc->mFormat) || 1064 (channelMask != inputDesc->mChannelMask)) { 1065 ALOGI("getInput() failed opening input: samplingRate %d, format %d, channelMask %x", 1066 samplingRate, format, channelMask); 1067 if (input != 0) { 1068 mpClientInterface->closeInput(input); 1069 } 1070 delete inputDesc; 1071 return 0; 1072 } 1073 addInput(input, inputDesc); 1074 mpClientInterface->onAudioPortListUpdate(); 1075 return input; 1076} 1077 1078status_t AudioPolicyManager::startInput(audio_io_handle_t input) 1079{ 1080 ALOGV("startInput() input %d", input); 1081 ssize_t index = mInputs.indexOfKey(input); 1082 if (index < 0) { 1083 ALOGW("startInput() unknown input %d", input); 1084 return BAD_VALUE; 1085 } 1086 AudioInputDescriptor *inputDesc = mInputs.valueAt(index); 1087 1088#ifdef AUDIO_POLICY_TEST 1089 if (mTestInput == 0) 1090#endif //AUDIO_POLICY_TEST 1091 { 1092 // refuse 2 active AudioRecord clients at the same time except if the active input 1093 // uses AUDIO_SOURCE_HOTWORD in which case it is closed. 1094 audio_io_handle_t activeInput = getActiveInput(); 1095 if (!isVirtualInputDevice(inputDesc->mDevice) && activeInput != 0) { 1096 AudioInputDescriptor *activeDesc = mInputs.valueFor(activeInput); 1097 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1098 ALOGW("startInput() preempting already started low-priority input %d", activeInput); 1099 stopInput(activeInput); 1100 releaseInput(activeInput); 1101 } else { 1102 ALOGW("startInput() input %d failed: other input already started", input); 1103 return INVALID_OPERATION; 1104 } 1105 } 1106 } 1107 1108 setInputDevice(input, getNewInputDevice(input), true /* force */); 1109 1110 // automatically enable the remote submix output when input is started 1111 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1112 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1113 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1114 } 1115 1116 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1117 1118 inputDesc->mRefCount = 1; 1119 return NO_ERROR; 1120} 1121 1122status_t AudioPolicyManager::stopInput(audio_io_handle_t input) 1123{ 1124 ALOGV("stopInput() input %d", input); 1125 ssize_t index = mInputs.indexOfKey(input); 1126 if (index < 0) { 1127 ALOGW("stopInput() unknown input %d", input); 1128 return BAD_VALUE; 1129 } 1130 AudioInputDescriptor *inputDesc = mInputs.valueAt(index); 1131 1132 if (inputDesc->mRefCount == 0) { 1133 ALOGW("stopInput() input %d already stopped", input); 1134 return INVALID_OPERATION; 1135 } else { 1136 // automatically disable the remote submix output when input is stopped 1137 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1138 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1139 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1140 } 1141 1142 resetInputDevice(input); 1143 inputDesc->mRefCount = 0; 1144 return NO_ERROR; 1145 } 1146} 1147 1148void AudioPolicyManager::releaseInput(audio_io_handle_t input) 1149{ 1150 ALOGV("releaseInput() %d", input); 1151 ssize_t index = mInputs.indexOfKey(input); 1152 if (index < 0) { 1153 ALOGW("releaseInput() releasing unknown input %d", input); 1154 return; 1155 } 1156 mpClientInterface->closeInput(input); 1157 delete mInputs.valueAt(index); 1158 mInputs.removeItem(input); 1159 nextAudioPortGeneration(); 1160 mpClientInterface->onAudioPortListUpdate(); 1161 ALOGV("releaseInput() exit"); 1162} 1163 1164void AudioPolicyManager::closeAllInputs() { 1165 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1166 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1167 } 1168 mInputs.clear(); 1169 nextAudioPortGeneration(); 1170} 1171 1172void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1173 int indexMin, 1174 int indexMax) 1175{ 1176 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1177 if (indexMin < 0 || indexMin >= indexMax) { 1178 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax); 1179 return; 1180 } 1181 mStreams[stream].mIndexMin = indexMin; 1182 mStreams[stream].mIndexMax = indexMax; 1183} 1184 1185status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1186 int index, 1187 audio_devices_t device) 1188{ 1189 1190 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { 1191 return BAD_VALUE; 1192 } 1193 if (!audio_is_output_device(device)) { 1194 return BAD_VALUE; 1195 } 1196 1197 // Force max volume if stream cannot be muted 1198 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax; 1199 1200 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1201 stream, device, index); 1202 1203 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1204 // clear all device specific values 1205 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1206 mStreams[stream].mIndexCur.clear(); 1207 } 1208 mStreams[stream].mIndexCur.add(device, index); 1209 1210 // compute and apply stream volume on all outputs according to connected device 1211 status_t status = NO_ERROR; 1212 for (size_t i = 0; i < mOutputs.size(); i++) { 1213 audio_devices_t curDevice = 1214 getDeviceForVolume(mOutputs.valueAt(i)->device()); 1215 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || (device == curDevice)) { 1216 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1217 if (volStatus != NO_ERROR) { 1218 status = volStatus; 1219 } 1220 } 1221 } 1222 return status; 1223} 1224 1225status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1226 int *index, 1227 audio_devices_t device) 1228{ 1229 if (index == NULL) { 1230 return BAD_VALUE; 1231 } 1232 if (!audio_is_output_device(device)) { 1233 return BAD_VALUE; 1234 } 1235 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1236 // the strategy the stream belongs to. 1237 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1238 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1239 } 1240 device = getDeviceForVolume(device); 1241 1242 *index = mStreams[stream].getVolumeIndex(device); 1243 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1244 return NO_ERROR; 1245} 1246 1247audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1248 const SortedVector<audio_io_handle_t>& outputs) 1249{ 1250 // select one output among several suitable for global effects. 1251 // The priority is as follows: 1252 // 1: An offloaded output. If the effect ends up not being offloadable, 1253 // AudioFlinger will invalidate the track and the offloaded output 1254 // will be closed causing the effect to be moved to a PCM output. 1255 // 2: A deep buffer output 1256 // 3: the first output in the list 1257 1258 if (outputs.size() == 0) { 1259 return 0; 1260 } 1261 1262 audio_io_handle_t outputOffloaded = 0; 1263 audio_io_handle_t outputDeepBuffer = 0; 1264 1265 for (size_t i = 0; i < outputs.size(); i++) { 1266 AudioOutputDescriptor *desc = mOutputs.valueFor(outputs[i]); 1267 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1268 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1269 outputOffloaded = outputs[i]; 1270 } 1271 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1272 outputDeepBuffer = outputs[i]; 1273 } 1274 } 1275 1276 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1277 outputOffloaded, outputDeepBuffer); 1278 if (outputOffloaded != 0) { 1279 return outputOffloaded; 1280 } 1281 if (outputDeepBuffer != 0) { 1282 return outputDeepBuffer; 1283 } 1284 1285 return outputs[0]; 1286} 1287 1288audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1289{ 1290 // apply simple rule where global effects are attached to the same output as MUSIC streams 1291 1292 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1293 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1294 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1295 1296 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1297 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1298 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1299 1300 return output; 1301} 1302 1303status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1304 audio_io_handle_t io, 1305 uint32_t strategy, 1306 int session, 1307 int id) 1308{ 1309 ssize_t index = mOutputs.indexOfKey(io); 1310 if (index < 0) { 1311 index = mInputs.indexOfKey(io); 1312 if (index < 0) { 1313 ALOGW("registerEffect() unknown io %d", io); 1314 return INVALID_OPERATION; 1315 } 1316 } 1317 1318 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) { 1319 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB", 1320 desc->name, desc->memoryUsage); 1321 return INVALID_OPERATION; 1322 } 1323 mTotalEffectsMemory += desc->memoryUsage; 1324 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d", 1325 desc->name, io, strategy, session, id); 1326 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory); 1327 1328 EffectDescriptor *pDesc = new EffectDescriptor(); 1329 memcpy (&pDesc->mDesc, desc, sizeof(effect_descriptor_t)); 1330 pDesc->mIo = io; 1331 pDesc->mStrategy = (routing_strategy)strategy; 1332 pDesc->mSession = session; 1333 pDesc->mEnabled = false; 1334 1335 mEffects.add(id, pDesc); 1336 1337 return NO_ERROR; 1338} 1339 1340status_t AudioPolicyManager::unregisterEffect(int id) 1341{ 1342 ssize_t index = mEffects.indexOfKey(id); 1343 if (index < 0) { 1344 ALOGW("unregisterEffect() unknown effect ID %d", id); 1345 return INVALID_OPERATION; 1346 } 1347 1348 EffectDescriptor *pDesc = mEffects.valueAt(index); 1349 1350 setEffectEnabled(pDesc, false); 1351 1352 if (mTotalEffectsMemory < pDesc->mDesc.memoryUsage) { 1353 ALOGW("unregisterEffect() memory %d too big for total %d", 1354 pDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1355 pDesc->mDesc.memoryUsage = mTotalEffectsMemory; 1356 } 1357 mTotalEffectsMemory -= pDesc->mDesc.memoryUsage; 1358 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d", 1359 pDesc->mDesc.name, id, pDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1360 1361 mEffects.removeItem(id); 1362 delete pDesc; 1363 1364 return NO_ERROR; 1365} 1366 1367status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled) 1368{ 1369 ssize_t index = mEffects.indexOfKey(id); 1370 if (index < 0) { 1371 ALOGW("unregisterEffect() unknown effect ID %d", id); 1372 return INVALID_OPERATION; 1373 } 1374 1375 return setEffectEnabled(mEffects.valueAt(index), enabled); 1376} 1377 1378status_t AudioPolicyManager::setEffectEnabled(EffectDescriptor *pDesc, bool enabled) 1379{ 1380 if (enabled == pDesc->mEnabled) { 1381 ALOGV("setEffectEnabled(%s) effect already %s", 1382 enabled?"true":"false", enabled?"enabled":"disabled"); 1383 return INVALID_OPERATION; 1384 } 1385 1386 if (enabled) { 1387 if (mTotalEffectsCpuLoad + pDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) { 1388 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS", 1389 pDesc->mDesc.name, (float)pDesc->mDesc.cpuLoad/10); 1390 return INVALID_OPERATION; 1391 } 1392 mTotalEffectsCpuLoad += pDesc->mDesc.cpuLoad; 1393 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad); 1394 } else { 1395 if (mTotalEffectsCpuLoad < pDesc->mDesc.cpuLoad) { 1396 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d", 1397 pDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad); 1398 pDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad; 1399 } 1400 mTotalEffectsCpuLoad -= pDesc->mDesc.cpuLoad; 1401 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad); 1402 } 1403 pDesc->mEnabled = enabled; 1404 return NO_ERROR; 1405} 1406 1407bool AudioPolicyManager::isNonOffloadableEffectEnabled() 1408{ 1409 for (size_t i = 0; i < mEffects.size(); i++) { 1410 const EffectDescriptor * const pDesc = mEffects.valueAt(i); 1411 if (pDesc->mEnabled && (pDesc->mStrategy == STRATEGY_MEDIA) && 1412 ((pDesc->mDesc.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) == 0)) { 1413 ALOGV("isNonOffloadableEffectEnabled() non offloadable effect %s enabled on session %d", 1414 pDesc->mDesc.name, pDesc->mSession); 1415 return true; 1416 } 1417 } 1418 return false; 1419} 1420 1421bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 1422{ 1423 nsecs_t sysTime = systemTime(); 1424 for (size_t i = 0; i < mOutputs.size(); i++) { 1425 const AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i); 1426 if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1427 return true; 1428 } 1429 } 1430 return false; 1431} 1432 1433bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, 1434 uint32_t inPastMs) const 1435{ 1436 nsecs_t sysTime = systemTime(); 1437 for (size_t i = 0; i < mOutputs.size(); i++) { 1438 const AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i); 1439 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && 1440 outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1441 return true; 1442 } 1443 } 1444 return false; 1445} 1446 1447bool AudioPolicyManager::isSourceActive(audio_source_t source) const 1448{ 1449 for (size_t i = 0; i < mInputs.size(); i++) { 1450 const AudioInputDescriptor * inputDescriptor = mInputs.valueAt(i); 1451 if ((inputDescriptor->mInputSource == (int)source || 1452 (source == AUDIO_SOURCE_VOICE_RECOGNITION && 1453 inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) 1454 && (inputDescriptor->mRefCount > 0)) { 1455 return true; 1456 } 1457 } 1458 return false; 1459} 1460 1461 1462status_t AudioPolicyManager::dump(int fd) 1463{ 1464 const size_t SIZE = 256; 1465 char buffer[SIZE]; 1466 String8 result; 1467 1468 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 1469 result.append(buffer); 1470 1471 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 1472 result.append(buffer); 1473 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState); 1474 result.append(buffer); 1475 snprintf(buffer, SIZE, " Force use for communications %d\n", 1476 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 1477 result.append(buffer); 1478 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA]); 1479 result.append(buffer); 1480 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD]); 1481 result.append(buffer); 1482 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK]); 1483 result.append(buffer); 1484 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM]); 1485 result.append(buffer); 1486 1487 snprintf(buffer, SIZE, " Available output devices:\n"); 1488 result.append(buffer); 1489 write(fd, result.string(), result.size()); 1490 DeviceDescriptor::dumpHeader(fd, 2); 1491 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 1492 mAvailableOutputDevices[i]->dump(fd, 2); 1493 } 1494 snprintf(buffer, SIZE, "\n Available input devices:\n"); 1495 write(fd, buffer, strlen(buffer)); 1496 DeviceDescriptor::dumpHeader(fd, 2); 1497 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 1498 mAvailableInputDevices[i]->dump(fd, 2); 1499 } 1500 1501 snprintf(buffer, SIZE, "\nHW Modules dump:\n"); 1502 write(fd, buffer, strlen(buffer)); 1503 for (size_t i = 0; i < mHwModules.size(); i++) { 1504 snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1); 1505 write(fd, buffer, strlen(buffer)); 1506 mHwModules[i]->dump(fd); 1507 } 1508 1509 snprintf(buffer, SIZE, "\nOutputs dump:\n"); 1510 write(fd, buffer, strlen(buffer)); 1511 for (size_t i = 0; i < mOutputs.size(); i++) { 1512 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i)); 1513 write(fd, buffer, strlen(buffer)); 1514 mOutputs.valueAt(i)->dump(fd); 1515 } 1516 1517 snprintf(buffer, SIZE, "\nInputs dump:\n"); 1518 write(fd, buffer, strlen(buffer)); 1519 for (size_t i = 0; i < mInputs.size(); i++) { 1520 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i)); 1521 write(fd, buffer, strlen(buffer)); 1522 mInputs.valueAt(i)->dump(fd); 1523 } 1524 1525 snprintf(buffer, SIZE, "\nStreams dump:\n"); 1526 write(fd, buffer, strlen(buffer)); 1527 snprintf(buffer, SIZE, 1528 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n"); 1529 write(fd, buffer, strlen(buffer)); 1530 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 1531 snprintf(buffer, SIZE, " %02zu ", i); 1532 write(fd, buffer, strlen(buffer)); 1533 mStreams[i].dump(fd); 1534 } 1535 1536 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n", 1537 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory); 1538 write(fd, buffer, strlen(buffer)); 1539 1540 snprintf(buffer, SIZE, "Registered effects:\n"); 1541 write(fd, buffer, strlen(buffer)); 1542 for (size_t i = 0; i < mEffects.size(); i++) { 1543 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i)); 1544 write(fd, buffer, strlen(buffer)); 1545 mEffects.valueAt(i)->dump(fd); 1546 } 1547 1548 1549 return NO_ERROR; 1550} 1551 1552// This function checks for the parameters which can be offloaded. 1553// This can be enhanced depending on the capability of the DSP and policy 1554// of the system. 1555bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 1556{ 1557 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 1558 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 1559 offloadInfo.sample_rate, offloadInfo.channel_mask, 1560 offloadInfo.format, 1561 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 1562 offloadInfo.has_video); 1563 1564 // Check if offload has been disabled 1565 char propValue[PROPERTY_VALUE_MAX]; 1566 if (property_get("audio.offload.disable", propValue, "0")) { 1567 if (atoi(propValue) != 0) { 1568 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 1569 return false; 1570 } 1571 } 1572 1573 // Check if stream type is music, then only allow offload as of now. 1574 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 1575 { 1576 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 1577 return false; 1578 } 1579 1580 //TODO: enable audio offloading with video when ready 1581 if (offloadInfo.has_video) 1582 { 1583 ALOGV("isOffloadSupported: has_video == true, returning false"); 1584 return false; 1585 } 1586 1587 //If duration is less than minimum value defined in property, return false 1588 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 1589 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 1590 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 1591 return false; 1592 } 1593 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 1594 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 1595 return false; 1596 } 1597 1598 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 1599 // creating an offloaded track and tearing it down immediately after start when audioflinger 1600 // detects there is an active non offloadable effect. 1601 // FIXME: We should check the audio session here but we do not have it in this context. 1602 // This may prevent offloading in rare situations where effects are left active by apps 1603 // in the background. 1604 if (isNonOffloadableEffectEnabled()) { 1605 return false; 1606 } 1607 1608 // See if there is a profile to support this. 1609 // AUDIO_DEVICE_NONE 1610 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 1611 offloadInfo.sample_rate, 1612 offloadInfo.format, 1613 offloadInfo.channel_mask, 1614 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 1615 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 1616 return (profile != 0); 1617} 1618 1619status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 1620 audio_port_type_t type, 1621 unsigned int *num_ports, 1622 struct audio_port *ports, 1623 unsigned int *generation) 1624{ 1625 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 1626 generation == NULL) { 1627 return BAD_VALUE; 1628 } 1629 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 1630 if (ports == NULL) { 1631 *num_ports = 0; 1632 } 1633 1634 size_t portsWritten = 0; 1635 size_t portsMax = *num_ports; 1636 *num_ports = 0; 1637 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 1638 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 1639 for (size_t i = 0; 1640 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 1641 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 1642 } 1643 *num_ports += mAvailableOutputDevices.size(); 1644 } 1645 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 1646 for (size_t i = 0; 1647 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 1648 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 1649 } 1650 *num_ports += mAvailableInputDevices.size(); 1651 } 1652 } 1653 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 1654 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 1655 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 1656 mInputs[i]->toAudioPort(&ports[portsWritten++]); 1657 } 1658 *num_ports += mInputs.size(); 1659 } 1660 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 1661 for (size_t i = 0; i < mOutputs.size() && portsWritten < portsMax; i++) { 1662 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 1663 } 1664 *num_ports += mOutputs.size(); 1665 } 1666 } 1667 *generation = curAudioPortGeneration(); 1668 ALOGV("listAudioPorts() got %d ports needed %d", portsWritten, *num_ports); 1669 return NO_ERROR; 1670} 1671 1672status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 1673{ 1674 return NO_ERROR; 1675} 1676 1677AudioPolicyManager::AudioOutputDescriptor *AudioPolicyManager::getOutputFromId( 1678 audio_port_handle_t id) const 1679{ 1680 AudioOutputDescriptor *outputDesc = NULL; 1681 for (size_t i = 0; i < mOutputs.size(); i++) { 1682 outputDesc = mOutputs.valueAt(i); 1683 if (outputDesc->mId == id) { 1684 break; 1685 } 1686 } 1687 return outputDesc; 1688} 1689 1690AudioPolicyManager::AudioInputDescriptor *AudioPolicyManager::getInputFromId( 1691 audio_port_handle_t id) const 1692{ 1693 AudioInputDescriptor *inputDesc = NULL; 1694 for (size_t i = 0; i < mInputs.size(); i++) { 1695 inputDesc = mInputs.valueAt(i); 1696 if (inputDesc->mId == id) { 1697 break; 1698 } 1699 } 1700 return inputDesc; 1701} 1702 1703AudioPolicyManager::HwModule *AudioPolicyManager::getModuleForDevice(audio_devices_t device) const 1704{ 1705 for (size_t i = 0; i < mHwModules.size(); i++) { 1706 if (mHwModules[i]->mHandle == 0) { 1707 continue; 1708 } 1709 if (audio_is_output_device(device)) { 1710 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 1711 { 1712 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 1713 return mHwModules[i]; 1714 } 1715 } 1716 } else { 1717 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) { 1718 if (mHwModules[i]->mInputProfiles[j]->mSupportedDevices.types() & 1719 device & ~AUDIO_DEVICE_BIT_IN) { 1720 return mHwModules[i]; 1721 } 1722 } 1723 } 1724 } 1725 return NULL; 1726} 1727 1728status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 1729 audio_patch_handle_t *handle, 1730 uid_t uid) 1731{ 1732 ALOGV("createAudioPatch()"); 1733 1734 if (handle == NULL || patch == NULL) { 1735 return BAD_VALUE; 1736 } 1737 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 1738 1739 if (patch->num_sources > 1 || patch->num_sinks > 1) { 1740 return INVALID_OPERATION; 1741 } 1742 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE || 1743 patch->sinks[0].role != AUDIO_PORT_ROLE_SINK) { 1744 return INVALID_OPERATION; 1745 } 1746 1747 sp<AudioPatch> patchDesc; 1748 ssize_t index = mAudioPatches.indexOfKey(*handle); 1749 1750 ALOGV("createAudioPatch sink id %d role %d type %d", patch->sinks[0].id, patch->sinks[0].role, 1751 patch->sinks[0].type); 1752 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 1753 patch->sources[0].role, 1754 patch->sources[0].type); 1755 1756 if (index >= 0) { 1757 patchDesc = mAudioPatches.valueAt(index); 1758 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 1759 mUidCached, patchDesc->mUid, uid); 1760 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 1761 return INVALID_OPERATION; 1762 } 1763 } else { 1764 *handle = 0; 1765 } 1766 1767 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 1768 // TODO add support for mix to mix connection 1769 if (patch->sinks[0].type != AUDIO_PORT_TYPE_DEVICE) { 1770 ALOGV("createAudioPatch() source mix sink not device"); 1771 return BAD_VALUE; 1772 } 1773 // output mix to output device connection 1774 AudioOutputDescriptor *outputDesc = getOutputFromId(patch->sources[0].id); 1775 if (outputDesc == NULL) { 1776 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 1777 return BAD_VALUE; 1778 } 1779 if (patchDesc != 0) { 1780 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 1781 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 1782 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 1783 return BAD_VALUE; 1784 } 1785 } 1786 sp<DeviceDescriptor> devDesc = 1787 mAvailableOutputDevices.getDeviceFromId(patch->sinks[0].id); 1788 if (devDesc == 0) { 1789 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[0].id); 1790 return BAD_VALUE; 1791 } 1792 1793 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->mType, 1794 patch->sources[0].sample_rate, 1795 patch->sources[0].format, 1796 patch->sources[0].channel_mask, 1797 AUDIO_OUTPUT_FLAG_NONE)) { 1798 return INVALID_OPERATION; 1799 } 1800 // TODO: reconfigure output format and channels here 1801 ALOGV("createAudioPatch() setting device %08x on output %d", 1802 devDesc->mType, outputDesc->mIoHandle); 1803 setOutputDevice(outputDesc->mIoHandle, 1804 devDesc->mType, 1805 true, 1806 0, 1807 handle); 1808 index = mAudioPatches.indexOfKey(*handle); 1809 if (index >= 0) { 1810 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 1811 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 1812 } 1813 patchDesc = mAudioPatches.valueAt(index); 1814 patchDesc->mUid = uid; 1815 ALOGV("createAudioPatch() success"); 1816 } else { 1817 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 1818 return INVALID_OPERATION; 1819 } 1820 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 1821 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 1822 // input device to input mix connection 1823 AudioInputDescriptor *inputDesc = getInputFromId(patch->sinks[0].id); 1824 if (inputDesc == NULL) { 1825 return BAD_VALUE; 1826 } 1827 if (patchDesc != 0) { 1828 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 1829 return BAD_VALUE; 1830 } 1831 } 1832 sp<DeviceDescriptor> devDesc = 1833 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 1834 if (devDesc == 0) { 1835 return BAD_VALUE; 1836 } 1837 1838 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->mType, 1839 patch->sinks[0].sample_rate, 1840 patch->sinks[0].format, 1841 patch->sinks[0].channel_mask, 1842 AUDIO_OUTPUT_FLAG_NONE)) { 1843 return INVALID_OPERATION; 1844 } 1845 // TODO: reconfigure output format and channels here 1846 ALOGV("createAudioPatch() setting device %08x on output %d", 1847 devDesc->mType, inputDesc->mIoHandle); 1848 setInputDevice(inputDesc->mIoHandle, 1849 devDesc->mType, 1850 true, 1851 handle); 1852 index = mAudioPatches.indexOfKey(*handle); 1853 if (index >= 0) { 1854 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 1855 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 1856 } 1857 patchDesc = mAudioPatches.valueAt(index); 1858 patchDesc->mUid = uid; 1859 ALOGV("createAudioPatch() success"); 1860 } else { 1861 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 1862 return INVALID_OPERATION; 1863 } 1864 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 1865 // device to device connection 1866 if (patchDesc != 0) { 1867 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id && 1868 patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 1869 return BAD_VALUE; 1870 } 1871 } 1872 1873 sp<DeviceDescriptor> srcDeviceDesc = 1874 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 1875 sp<DeviceDescriptor> sinkDeviceDesc = 1876 mAvailableOutputDevices.getDeviceFromId(patch->sinks[0].id); 1877 if (srcDeviceDesc == 0 || sinkDeviceDesc == 0) { 1878 return BAD_VALUE; 1879 } 1880 //update source and sink with our own data as the data passed in the patch may 1881 // be incomplete. 1882 struct audio_patch newPatch = *patch; 1883 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 1884 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[0], &patch->sinks[0]); 1885 1886 // TODO: add support for devices on different HW modules 1887 if (srcDeviceDesc->mModule != sinkDeviceDesc->mModule) { 1888 return INVALID_OPERATION; 1889 } 1890 // TODO: check from routing capabilities in config file and other conflicting patches 1891 1892 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 1893 if (index >= 0) { 1894 afPatchHandle = patchDesc->mAfPatchHandle; 1895 } 1896 1897 status_t status = mpClientInterface->createAudioPatch(&newPatch, 1898 &afPatchHandle, 1899 0); 1900 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 1901 status, afPatchHandle); 1902 if (status == NO_ERROR) { 1903 if (index < 0) { 1904 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 1905 &newPatch, uid); 1906 addAudioPatch(patchDesc->mHandle, patchDesc); 1907 } else { 1908 patchDesc->mPatch = newPatch; 1909 } 1910 patchDesc->mAfPatchHandle = afPatchHandle; 1911 *handle = patchDesc->mHandle; 1912 nextAudioPortGeneration(); 1913 mpClientInterface->onAudioPatchListUpdate(); 1914 } else { 1915 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 1916 status); 1917 return INVALID_OPERATION; 1918 } 1919 } else { 1920 return BAD_VALUE; 1921 } 1922 } else { 1923 return BAD_VALUE; 1924 } 1925 return NO_ERROR; 1926} 1927 1928status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 1929 uid_t uid) 1930{ 1931 ALOGV("releaseAudioPatch() patch %d", handle); 1932 1933 ssize_t index = mAudioPatches.indexOfKey(handle); 1934 1935 if (index < 0) { 1936 return BAD_VALUE; 1937 } 1938 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 1939 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 1940 mUidCached, patchDesc->mUid, uid); 1941 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 1942 return INVALID_OPERATION; 1943 } 1944 1945 struct audio_patch *patch = &patchDesc->mPatch; 1946 patchDesc->mUid = mUidCached; 1947 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 1948 AudioOutputDescriptor *outputDesc = getOutputFromId(patch->sources[0].id); 1949 if (outputDesc == NULL) { 1950 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 1951 return BAD_VALUE; 1952 } 1953 1954 setOutputDevice(outputDesc->mIoHandle, 1955 getNewOutputDevice(outputDesc->mIoHandle, true /*fromCache*/), 1956 true, 1957 0, 1958 NULL); 1959 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 1960 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 1961 AudioInputDescriptor *inputDesc = getInputFromId(patch->sinks[0].id); 1962 if (inputDesc == NULL) { 1963 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 1964 return BAD_VALUE; 1965 } 1966 setInputDevice(inputDesc->mIoHandle, 1967 getNewInputDevice(inputDesc->mIoHandle), 1968 true, 1969 NULL); 1970 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 1971 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 1972 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 1973 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 1974 status, patchDesc->mAfPatchHandle); 1975 removeAudioPatch(patchDesc->mHandle); 1976 nextAudioPortGeneration(); 1977 mpClientInterface->onAudioPatchListUpdate(); 1978 } else { 1979 return BAD_VALUE; 1980 } 1981 } else { 1982 return BAD_VALUE; 1983 } 1984 return NO_ERROR; 1985} 1986 1987status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 1988 struct audio_patch *patches, 1989 unsigned int *generation) 1990{ 1991 if (num_patches == NULL || (*num_patches != 0 && patches == NULL) || 1992 generation == NULL) { 1993 return BAD_VALUE; 1994 } 1995 ALOGV("listAudioPatches() num_patches %d patches %p available patches %d", 1996 *num_patches, patches, mAudioPatches.size()); 1997 if (patches == NULL) { 1998 *num_patches = 0; 1999 } 2000 2001 size_t patchesWritten = 0; 2002 size_t patchesMax = *num_patches; 2003 for (size_t i = 0; 2004 i < mAudioPatches.size() && patchesWritten < patchesMax; i++) { 2005 patches[patchesWritten] = mAudioPatches[i]->mPatch; 2006 patches[patchesWritten++].id = mAudioPatches[i]->mHandle; 2007 ALOGV("listAudioPatches() patch %d num_sources %d num_sinks %d", 2008 i, mAudioPatches[i]->mPatch.num_sources, mAudioPatches[i]->mPatch.num_sinks); 2009 } 2010 *num_patches = mAudioPatches.size(); 2011 2012 *generation = curAudioPortGeneration(); 2013 ALOGV("listAudioPatches() got %d patches needed %d", patchesWritten, *num_patches); 2014 return NO_ERROR; 2015} 2016 2017status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config __unused) 2018{ 2019 return NO_ERROR; 2020} 2021 2022void AudioPolicyManager::clearAudioPatches(uid_t uid) 2023{ 2024 for (ssize_t i = 0; i < (ssize_t)mAudioPatches.size(); i++) { 2025 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2026 if (patchDesc->mUid == uid) { 2027 // releaseAudioPatch() removes the patch from mAudioPatches 2028 if (releaseAudioPatch(mAudioPatches.keyAt(i), uid) == NO_ERROR) { 2029 i--; 2030 } 2031 } 2032 } 2033} 2034 2035status_t AudioPolicyManager::addAudioPatch(audio_patch_handle_t handle, 2036 const sp<AudioPatch>& patch) 2037{ 2038 ssize_t index = mAudioPatches.indexOfKey(handle); 2039 2040 if (index >= 0) { 2041 ALOGW("addAudioPatch() patch %d already in", handle); 2042 return ALREADY_EXISTS; 2043 } 2044 mAudioPatches.add(handle, patch); 2045 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d" 2046 "sink handle %d", 2047 handle, patch->mAfPatchHandle, patch->mPatch.num_sources, patch->mPatch.num_sinks, 2048 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id); 2049 return NO_ERROR; 2050} 2051 2052status_t AudioPolicyManager::removeAudioPatch(audio_patch_handle_t handle) 2053{ 2054 ssize_t index = mAudioPatches.indexOfKey(handle); 2055 2056 if (index < 0) { 2057 ALOGW("removeAudioPatch() patch %d not in", handle); 2058 return ALREADY_EXISTS; 2059 } 2060 ALOGV("removeAudioPatch() handle %d af handle %d", handle, 2061 mAudioPatches.valueAt(index)->mAfPatchHandle); 2062 mAudioPatches.removeItemsAt(index); 2063 return NO_ERROR; 2064} 2065 2066// ---------------------------------------------------------------------------- 2067// AudioPolicyManager 2068// ---------------------------------------------------------------------------- 2069 2070uint32_t AudioPolicyManager::nextUniqueId() 2071{ 2072 return android_atomic_inc(&mNextUniqueId); 2073} 2074 2075uint32_t AudioPolicyManager::nextAudioPortGeneration() 2076{ 2077 return android_atomic_inc(&mAudioPortGeneration); 2078} 2079 2080AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 2081 : 2082#ifdef AUDIO_POLICY_TEST 2083 Thread(false), 2084#endif //AUDIO_POLICY_TEST 2085 mPrimaryOutput((audio_io_handle_t)0), 2086 mPhoneState(AUDIO_MODE_NORMAL), 2087 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 2088 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0), 2089 mA2dpSuspended(false), 2090 mSpeakerDrcEnabled(false), mNextUniqueId(1), 2091 mAudioPortGeneration(1) 2092{ 2093 mUidCached = getuid(); 2094 mpClientInterface = clientInterface; 2095 2096 for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) { 2097 mForceUse[i] = AUDIO_POLICY_FORCE_NONE; 2098 } 2099 2100 mDefaultOutputDevice = new DeviceDescriptor(AUDIO_DEVICE_OUT_SPEAKER); 2101 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) { 2102 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) { 2103 ALOGE("could not load audio policy configuration file, setting defaults"); 2104 defaultAudioPolicyConfig(); 2105 } 2106 } 2107 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 2108 2109 // must be done after reading the policy 2110 initializeVolumeCurves(); 2111 2112 // open all output streams needed to access attached devices 2113 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 2114 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 2115 for (size_t i = 0; i < mHwModules.size(); i++) { 2116 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 2117 if (mHwModules[i]->mHandle == 0) { 2118 ALOGW("could not open HW module %s", mHwModules[i]->mName); 2119 continue; 2120 } 2121 // open all output streams needed to access attached devices 2122 // except for direct output streams that are only opened when they are actually 2123 // required by an app. 2124 // This also validates mAvailableOutputDevices list 2125 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2126 { 2127 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 2128 2129 if (outProfile->mSupportedDevices.isEmpty()) { 2130 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 2131 continue; 2132 } 2133 2134 audio_devices_t profileTypes = outProfile->mSupportedDevices.types(); 2135 if ((profileTypes & outputDeviceTypes) && 2136 ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0)) { 2137 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(outProfile); 2138 2139 outputDesc->mDevice = (audio_devices_t)(mDefaultOutputDevice->mDeviceType & profileTypes); 2140 audio_io_handle_t output = mpClientInterface->openOutput( 2141 outProfile->mModule->mHandle, 2142 &outputDesc->mDevice, 2143 &outputDesc->mSamplingRate, 2144 &outputDesc->mFormat, 2145 &outputDesc->mChannelMask, 2146 &outputDesc->mLatency, 2147 outputDesc->mFlags); 2148 if (output == 0) { 2149 ALOGW("Cannot open output stream for device %08x on hw module %s", 2150 outputDesc->mDevice, 2151 mHwModules[i]->mName); 2152 delete outputDesc; 2153 } else { 2154 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2155 audio_devices_t type = outProfile->mSupportedDevices[k]->mDeviceType; 2156 ssize_t index = 2157 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 2158 // give a valid ID to an attached device once confirmed it is reachable 2159 if ((index >= 0) && (mAvailableOutputDevices[index]->mId == 0)) { 2160 mAvailableOutputDevices[index]->mId = nextUniqueId(); 2161 mAvailableOutputDevices[index]->mModule = mHwModules[i]; 2162 } 2163 } 2164 if (mPrimaryOutput == 0 && 2165 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 2166 mPrimaryOutput = output; 2167 } 2168 addOutput(output, outputDesc); 2169 ALOGI("CSTOR setOutputDevice %08x", outputDesc->mDevice); 2170 setOutputDevice(output, 2171 outputDesc->mDevice, 2172 true); 2173 } 2174 } 2175 } 2176 // open input streams needed to access attached devices to validate 2177 // mAvailableInputDevices list 2178 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 2179 { 2180 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 2181 2182 if (inProfile->mSupportedDevices.isEmpty()) { 2183 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 2184 continue; 2185 } 2186 2187 audio_devices_t profileTypes = inProfile->mSupportedDevices.types(); 2188 if (profileTypes & inputDeviceTypes) { 2189 AudioInputDescriptor *inputDesc = new AudioInputDescriptor(inProfile); 2190 2191 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 2192 inputDesc->mDevice = inProfile->mSupportedDevices[0]->mDeviceType; 2193 audio_io_handle_t input = mpClientInterface->openInput( 2194 inProfile->mModule->mHandle, 2195 &inputDesc->mDevice, 2196 &inputDesc->mSamplingRate, 2197 &inputDesc->mFormat, 2198 &inputDesc->mChannelMask); 2199 2200 if (input != 0) { 2201 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2202 audio_devices_t type = inProfile->mSupportedDevices[k]->mDeviceType; 2203 ssize_t index = 2204 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 2205 // give a valid ID to an attached device once confirmed it is reachable 2206 if ((index >= 0) && (mAvailableInputDevices[index]->mId == 0)) { 2207 mAvailableInputDevices[index]->mId = nextUniqueId(); 2208 mAvailableInputDevices[index]->mModule = mHwModules[i]; 2209 } 2210 } 2211 mpClientInterface->closeInput(input); 2212 } else { 2213 ALOGW("Cannot open input stream for device %08x on hw module %s", 2214 inputDesc->mDevice, 2215 mHwModules[i]->mName); 2216 } 2217 delete inputDesc; 2218 } 2219 } 2220 } 2221 // make sure all attached devices have been allocated a unique ID 2222 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 2223 if (mAvailableOutputDevices[i]->mId == 0) { 2224 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->mDeviceType); 2225 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 2226 continue; 2227 } 2228 i++; 2229 } 2230 for (size_t i = 0; i < mAvailableInputDevices.size();) { 2231 if (mAvailableInputDevices[i]->mId == 0) { 2232 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->mDeviceType); 2233 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 2234 continue; 2235 } 2236 i++; 2237 } 2238 // make sure default device is reachable 2239 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 2240 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->mDeviceType); 2241 } 2242 2243 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 2244 2245 updateDevicesAndOutputs(); 2246 2247#ifdef AUDIO_POLICY_TEST 2248 if (mPrimaryOutput != 0) { 2249 AudioParameter outputCmd = AudioParameter(); 2250 outputCmd.addInt(String8("set_id"), 0); 2251 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2252 2253 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 2254 mTestSamplingRate = 44100; 2255 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 2256 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 2257 mTestLatencyMs = 0; 2258 mCurOutput = 0; 2259 mDirectOutput = false; 2260 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2261 mTestOutputs[i] = 0; 2262 } 2263 2264 const size_t SIZE = 256; 2265 char buffer[SIZE]; 2266 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 2267 run(buffer, ANDROID_PRIORITY_AUDIO); 2268 } 2269#endif //AUDIO_POLICY_TEST 2270} 2271 2272AudioPolicyManager::~AudioPolicyManager() 2273{ 2274#ifdef AUDIO_POLICY_TEST 2275 exit(); 2276#endif //AUDIO_POLICY_TEST 2277 for (size_t i = 0; i < mOutputs.size(); i++) { 2278 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 2279 delete mOutputs.valueAt(i); 2280 } 2281 for (size_t i = 0; i < mInputs.size(); i++) { 2282 mpClientInterface->closeInput(mInputs.keyAt(i)); 2283 delete mInputs.valueAt(i); 2284 } 2285 for (size_t i = 0; i < mHwModules.size(); i++) { 2286 delete mHwModules[i]; 2287 } 2288 mAvailableOutputDevices.clear(); 2289 mAvailableInputDevices.clear(); 2290} 2291 2292status_t AudioPolicyManager::initCheck() 2293{ 2294 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 2295} 2296 2297#ifdef AUDIO_POLICY_TEST 2298bool AudioPolicyManager::threadLoop() 2299{ 2300 ALOGV("entering threadLoop()"); 2301 while (!exitPending()) 2302 { 2303 String8 command; 2304 int valueInt; 2305 String8 value; 2306 2307 Mutex::Autolock _l(mLock); 2308 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 2309 2310 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 2311 AudioParameter param = AudioParameter(command); 2312 2313 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 2314 valueInt != 0) { 2315 ALOGV("Test command %s received", command.string()); 2316 String8 target; 2317 if (param.get(String8("target"), target) != NO_ERROR) { 2318 target = "Manager"; 2319 } 2320 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 2321 param.remove(String8("test_cmd_policy_output")); 2322 mCurOutput = valueInt; 2323 } 2324 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 2325 param.remove(String8("test_cmd_policy_direct")); 2326 if (value == "false") { 2327 mDirectOutput = false; 2328 } else if (value == "true") { 2329 mDirectOutput = true; 2330 } 2331 } 2332 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 2333 param.remove(String8("test_cmd_policy_input")); 2334 mTestInput = valueInt; 2335 } 2336 2337 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 2338 param.remove(String8("test_cmd_policy_format")); 2339 int format = AUDIO_FORMAT_INVALID; 2340 if (value == "PCM 16 bits") { 2341 format = AUDIO_FORMAT_PCM_16_BIT; 2342 } else if (value == "PCM 8 bits") { 2343 format = AUDIO_FORMAT_PCM_8_BIT; 2344 } else if (value == "Compressed MP3") { 2345 format = AUDIO_FORMAT_MP3; 2346 } 2347 if (format != AUDIO_FORMAT_INVALID) { 2348 if (target == "Manager") { 2349 mTestFormat = format; 2350 } else if (mTestOutputs[mCurOutput] != 0) { 2351 AudioParameter outputParam = AudioParameter(); 2352 outputParam.addInt(String8("format"), format); 2353 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2354 } 2355 } 2356 } 2357 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 2358 param.remove(String8("test_cmd_policy_channels")); 2359 int channels = 0; 2360 2361 if (value == "Channels Stereo") { 2362 channels = AUDIO_CHANNEL_OUT_STEREO; 2363 } else if (value == "Channels Mono") { 2364 channels = AUDIO_CHANNEL_OUT_MONO; 2365 } 2366 if (channels != 0) { 2367 if (target == "Manager") { 2368 mTestChannels = channels; 2369 } else if (mTestOutputs[mCurOutput] != 0) { 2370 AudioParameter outputParam = AudioParameter(); 2371 outputParam.addInt(String8("channels"), channels); 2372 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2373 } 2374 } 2375 } 2376 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 2377 param.remove(String8("test_cmd_policy_sampleRate")); 2378 if (valueInt >= 0 && valueInt <= 96000) { 2379 int samplingRate = valueInt; 2380 if (target == "Manager") { 2381 mTestSamplingRate = samplingRate; 2382 } else if (mTestOutputs[mCurOutput] != 0) { 2383 AudioParameter outputParam = AudioParameter(); 2384 outputParam.addInt(String8("sampling_rate"), samplingRate); 2385 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2386 } 2387 } 2388 } 2389 2390 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 2391 param.remove(String8("test_cmd_policy_reopen")); 2392 2393 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mPrimaryOutput); 2394 mpClientInterface->closeOutput(mPrimaryOutput); 2395 2396 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle; 2397 2398 delete mOutputs.valueFor(mPrimaryOutput); 2399 mOutputs.removeItem(mPrimaryOutput); 2400 2401 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(NULL); 2402 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 2403 mPrimaryOutput = mpClientInterface->openOutput(moduleHandle, 2404 &outputDesc->mDevice, 2405 &outputDesc->mSamplingRate, 2406 &outputDesc->mFormat, 2407 &outputDesc->mChannelMask, 2408 &outputDesc->mLatency, 2409 outputDesc->mFlags); 2410 if (mPrimaryOutput == 0) { 2411 ALOGE("Failed to reopen hardware output stream, samplingRate: %d, format %d, channels %d", 2412 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 2413 } else { 2414 AudioParameter outputCmd = AudioParameter(); 2415 outputCmd.addInt(String8("set_id"), 0); 2416 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2417 addOutput(mPrimaryOutput, outputDesc); 2418 } 2419 } 2420 2421 2422 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 2423 } 2424 } 2425 return false; 2426} 2427 2428void AudioPolicyManager::exit() 2429{ 2430 { 2431 AutoMutex _l(mLock); 2432 requestExit(); 2433 mWaitWorkCV.signal(); 2434 } 2435 requestExitAndWait(); 2436} 2437 2438int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 2439{ 2440 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2441 if (output == mTestOutputs[i]) return i; 2442 } 2443 return 0; 2444} 2445#endif //AUDIO_POLICY_TEST 2446 2447// --- 2448 2449void AudioPolicyManager::addOutput(audio_io_handle_t output, AudioOutputDescriptor *outputDesc) 2450{ 2451 outputDesc->mIoHandle = output; 2452 outputDesc->mId = nextUniqueId(); 2453 mOutputs.add(output, outputDesc); 2454 nextAudioPortGeneration(); 2455} 2456 2457void AudioPolicyManager::addInput(audio_io_handle_t input, AudioInputDescriptor *inputDesc) 2458{ 2459 inputDesc->mIoHandle = input; 2460 inputDesc->mId = nextUniqueId(); 2461 mInputs.add(input, inputDesc); 2462 nextAudioPortGeneration(); 2463} 2464 2465String8 AudioPolicyManager::addressToParameter(audio_devices_t device, const String8 address) 2466{ 2467 if (device & AUDIO_DEVICE_OUT_ALL_A2DP) { 2468 return String8("a2dp_sink_address=")+address; 2469 } 2470 return address; 2471} 2472 2473status_t AudioPolicyManager::checkOutputsForDevice(audio_devices_t device, 2474 audio_policy_dev_state_t state, 2475 SortedVector<audio_io_handle_t>& outputs, 2476 const String8 address) 2477{ 2478 AudioOutputDescriptor *desc; 2479 2480 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 2481 // first list already open outputs that can be routed to this device 2482 for (size_t i = 0; i < mOutputs.size(); i++) { 2483 desc = mOutputs.valueAt(i); 2484 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) { 2485 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 2486 outputs.add(mOutputs.keyAt(i)); 2487 } 2488 } 2489 // then look for output profiles that can be routed to this device 2490 SortedVector< sp<IOProfile> > profiles; 2491 for (size_t i = 0; i < mHwModules.size(); i++) 2492 { 2493 if (mHwModules[i]->mHandle == 0) { 2494 continue; 2495 } 2496 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2497 { 2498 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 2499 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 2500 profiles.add(mHwModules[i]->mOutputProfiles[j]); 2501 } 2502 } 2503 } 2504 2505 if (profiles.isEmpty() && outputs.isEmpty()) { 2506 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 2507 return BAD_VALUE; 2508 } 2509 2510 // open outputs for matching profiles if needed. Direct outputs are also opened to 2511 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 2512 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 2513 sp<IOProfile> profile = profiles[profile_index]; 2514 2515 // nothing to do if one output is already opened for this profile 2516 size_t j; 2517 for (j = 0; j < mOutputs.size(); j++) { 2518 desc = mOutputs.valueAt(j); 2519 if (!desc->isDuplicated() && desc->mProfile == profile) { 2520 break; 2521 } 2522 } 2523 if (j != mOutputs.size()) { 2524 continue; 2525 } 2526 2527 ALOGV("opening output for device %08x with params %s", device, address.string()); 2528 desc = new AudioOutputDescriptor(profile); 2529 desc->mDevice = device; 2530 audio_offload_info_t offloadInfo = AUDIO_INFO_INITIALIZER; 2531 offloadInfo.sample_rate = desc->mSamplingRate; 2532 offloadInfo.format = desc->mFormat; 2533 offloadInfo.channel_mask = desc->mChannelMask; 2534 2535 audio_io_handle_t output = mpClientInterface->openOutput(profile->mModule->mHandle, 2536 &desc->mDevice, 2537 &desc->mSamplingRate, 2538 &desc->mFormat, 2539 &desc->mChannelMask, 2540 &desc->mLatency, 2541 desc->mFlags, 2542 &offloadInfo); 2543 if (output != 0) { 2544 // Here is where the out_set_parameters() for card & device gets called 2545 if (!address.isEmpty()) { 2546 mpClientInterface->setParameters(output, addressToParameter(device, address)); 2547 } 2548 2549 // Here is where we step through and resolve any "dynamic" fields 2550 String8 reply; 2551 char *value; 2552 if (profile->mSamplingRates[0] == 0) { 2553 reply = mpClientInterface->getParameters(output, 2554 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 2555 ALOGV("checkOutputsForDevice() direct output sup sampling rates %s", 2556 reply.string()); 2557 value = strpbrk((char *)reply.string(), "="); 2558 if (value != NULL) { 2559 profile->loadSamplingRates(value + 1); 2560 } 2561 } 2562 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 2563 reply = mpClientInterface->getParameters(output, 2564 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 2565 ALOGV("checkOutputsForDevice() direct output sup formats %s", 2566 reply.string()); 2567 value = strpbrk((char *)reply.string(), "="); 2568 if (value != NULL) { 2569 profile->loadFormats(value + 1); 2570 } 2571 } 2572 if (profile->mChannelMasks[0] == 0) { 2573 reply = mpClientInterface->getParameters(output, 2574 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 2575 ALOGV("checkOutputsForDevice() direct output sup channel masks %s", 2576 reply.string()); 2577 value = strpbrk((char *)reply.string(), "="); 2578 if (value != NULL) { 2579 profile->loadOutChannels(value + 1); 2580 } 2581 } 2582 if (((profile->mSamplingRates[0] == 0) && 2583 (profile->mSamplingRates.size() < 2)) || 2584 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 2585 (profile->mFormats.size() < 2)) || 2586 ((profile->mChannelMasks[0] == 0) && 2587 (profile->mChannelMasks.size() < 2))) { 2588 ALOGW("checkOutputsForDevice() direct output missing param"); 2589 mpClientInterface->closeOutput(output); 2590 output = 0; 2591 } else if (profile->mSamplingRates[0] == 0) { 2592 mpClientInterface->closeOutput(output); 2593 desc->mSamplingRate = profile->mSamplingRates[1]; 2594 offloadInfo.sample_rate = desc->mSamplingRate; 2595 output = mpClientInterface->openOutput( 2596 profile->mModule->mHandle, 2597 &desc->mDevice, 2598 &desc->mSamplingRate, 2599 &desc->mFormat, 2600 &desc->mChannelMask, 2601 &desc->mLatency, 2602 desc->mFlags, 2603 &offloadInfo); 2604 } 2605 2606 if (output != 0) { 2607 addOutput(output, desc); 2608 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) { 2609 audio_io_handle_t duplicatedOutput = 0; 2610 2611 // set initial stream volume for device 2612 applyStreamVolumes(output, device, 0, true); 2613 2614 //TODO: configure audio effect output stage here 2615 2616 // open a duplicating output thread for the new output and the primary output 2617 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 2618 mPrimaryOutput); 2619 if (duplicatedOutput != 0) { 2620 // add duplicated output descriptor 2621 AudioOutputDescriptor *dupOutputDesc = new AudioOutputDescriptor(NULL); 2622 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 2623 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 2624 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 2625 dupOutputDesc->mFormat = desc->mFormat; 2626 dupOutputDesc->mChannelMask = desc->mChannelMask; 2627 dupOutputDesc->mLatency = desc->mLatency; 2628 addOutput(duplicatedOutput, dupOutputDesc); 2629 applyStreamVolumes(duplicatedOutput, device, 0, true); 2630 } else { 2631 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 2632 mPrimaryOutput, output); 2633 mpClientInterface->closeOutput(output); 2634 mOutputs.removeItem(output); 2635 nextAudioPortGeneration(); 2636 output = 0; 2637 } 2638 } 2639 } 2640 } 2641 if (output == 0) { 2642 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 2643 delete desc; 2644 profiles.removeAt(profile_index); 2645 profile_index--; 2646 } else { 2647 outputs.add(output); 2648 ALOGV("checkOutputsForDevice(): adding output %d", output); 2649 } 2650 } 2651 2652 if (profiles.isEmpty()) { 2653 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 2654 return BAD_VALUE; 2655 } 2656 } else { // Disconnect 2657 // check if one opened output is not needed any more after disconnecting one device 2658 for (size_t i = 0; i < mOutputs.size(); i++) { 2659 desc = mOutputs.valueAt(i); 2660 if (!desc->isDuplicated() && 2661 !(desc->mProfile->mSupportedDevices.types() & 2662 mAvailableOutputDevices.types())) { 2663 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", mOutputs.keyAt(i)); 2664 outputs.add(mOutputs.keyAt(i)); 2665 } 2666 } 2667 // Clear any profiles associated with the disconnected device. 2668 for (size_t i = 0; i < mHwModules.size(); i++) 2669 { 2670 if (mHwModules[i]->mHandle == 0) { 2671 continue; 2672 } 2673 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2674 { 2675 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 2676 if (profile->mSupportedDevices.types() & device) { 2677 ALOGV("checkOutputsForDevice(): " 2678 "clearing direct output profile %zu on module %zu", j, i); 2679 if (profile->mSamplingRates[0] == 0) { 2680 profile->mSamplingRates.clear(); 2681 profile->mSamplingRates.add(0); 2682 } 2683 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 2684 profile->mFormats.clear(); 2685 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 2686 } 2687 if (profile->mChannelMasks[0] == 0) { 2688 profile->mChannelMasks.clear(); 2689 profile->mChannelMasks.add(0); 2690 } 2691 } 2692 } 2693 } 2694 } 2695 return NO_ERROR; 2696} 2697 2698status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device, 2699 audio_policy_dev_state_t state, 2700 SortedVector<audio_io_handle_t>& inputs, 2701 const String8 address) 2702{ 2703 AudioInputDescriptor *desc; 2704 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 2705 // first list already open inputs that can be routed to this device 2706 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 2707 desc = mInputs.valueAt(input_index); 2708 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 2709 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 2710 inputs.add(mInputs.keyAt(input_index)); 2711 } 2712 } 2713 2714 // then look for input profiles that can be routed to this device 2715 SortedVector< sp<IOProfile> > profiles; 2716 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 2717 { 2718 if (mHwModules[module_idx]->mHandle == 0) { 2719 continue; 2720 } 2721 for (size_t profile_index = 0; 2722 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 2723 profile_index++) 2724 { 2725 if (mHwModules[module_idx]->mInputProfiles[profile_index]->mSupportedDevices.types() 2726 & (device & ~AUDIO_DEVICE_BIT_IN)) { 2727 ALOGV("checkInputsForDevice(): adding profile %d from module %d", 2728 profile_index, module_idx); 2729 profiles.add(mHwModules[module_idx]->mInputProfiles[profile_index]); 2730 } 2731 } 2732 } 2733 2734 if (profiles.isEmpty() && inputs.isEmpty()) { 2735 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 2736 return BAD_VALUE; 2737 } 2738 2739 // open inputs for matching profiles if needed. Direct inputs are also opened to 2740 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 2741 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 2742 2743 sp<IOProfile> profile = profiles[profile_index]; 2744 // nothing to do if one input is already opened for this profile 2745 size_t input_index; 2746 for (input_index = 0; input_index < mInputs.size(); input_index++) { 2747 desc = mInputs.valueAt(input_index); 2748 if (desc->mProfile == profile) { 2749 break; 2750 } 2751 } 2752 if (input_index != mInputs.size()) { 2753 continue; 2754 } 2755 2756 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 2757 desc = new AudioInputDescriptor(profile); 2758 desc->mDevice = device; 2759 2760 audio_io_handle_t input = mpClientInterface->openInput(profile->mModule->mHandle, 2761 &desc->mDevice, 2762 &desc->mSamplingRate, 2763 &desc->mFormat, 2764 &desc->mChannelMask); 2765 2766 if (input != 0) { 2767 if (!address.isEmpty()) { 2768 mpClientInterface->setParameters(input, addressToParameter(device, address)); 2769 } 2770 2771 // Here is where we step through and resolve any "dynamic" fields 2772 String8 reply; 2773 char *value; 2774 if (profile->mSamplingRates[0] == 0) { 2775 reply = mpClientInterface->getParameters(input, 2776 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 2777 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 2778 reply.string()); 2779 value = strpbrk((char *)reply.string(), "="); 2780 if (value != NULL) { 2781 profile->loadSamplingRates(value + 1); 2782 } 2783 } 2784 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 2785 reply = mpClientInterface->getParameters(input, 2786 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 2787 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 2788 value = strpbrk((char *)reply.string(), "="); 2789 if (value != NULL) { 2790 profile->loadFormats(value + 1); 2791 } 2792 } 2793 if (profile->mChannelMasks[0] == 0) { 2794 reply = mpClientInterface->getParameters(input, 2795 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 2796 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 2797 reply.string()); 2798 value = strpbrk((char *)reply.string(), "="); 2799 if (value != NULL) { 2800 profile->loadInChannels(value + 1); 2801 } 2802 } 2803 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 2804 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 2805 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 2806 ALOGW("checkInputsForDevice() direct input missing param"); 2807 mpClientInterface->closeInput(input); 2808 input = 0; 2809 } 2810 2811 if (input != 0) { 2812 addInput(input, desc); 2813 } 2814 } // endif input != 0 2815 2816 if (input == 0) { 2817 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 2818 delete desc; 2819 profiles.removeAt(profile_index); 2820 profile_index--; 2821 } else { 2822 inputs.add(input); 2823 ALOGV("checkInputsForDevice(): adding input %d", input); 2824 } 2825 } // end scan profiles 2826 2827 if (profiles.isEmpty()) { 2828 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 2829 return BAD_VALUE; 2830 } 2831 } else { 2832 // Disconnect 2833 // check if one opened input is not needed any more after disconnecting one device 2834 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 2835 desc = mInputs.valueAt(input_index); 2836 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types())) { 2837 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 2838 mInputs.keyAt(input_index)); 2839 inputs.add(mInputs.keyAt(input_index)); 2840 } 2841 } 2842 // Clear any profiles associated with the disconnected device. 2843 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 2844 if (mHwModules[module_index]->mHandle == 0) { 2845 continue; 2846 } 2847 for (size_t profile_index = 0; 2848 profile_index < mHwModules[module_index]->mInputProfiles.size(); 2849 profile_index++) { 2850 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 2851 if (profile->mSupportedDevices.types() & device) { 2852 ALOGV("checkInputsForDevice(): clearing direct input profile %d on module %d", 2853 profile_index, module_index); 2854 if (profile->mSamplingRates[0] == 0) { 2855 profile->mSamplingRates.clear(); 2856 profile->mSamplingRates.add(0); 2857 } 2858 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 2859 profile->mFormats.clear(); 2860 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 2861 } 2862 if (profile->mChannelMasks[0] == 0) { 2863 profile->mChannelMasks.clear(); 2864 profile->mChannelMasks.add(0); 2865 } 2866 } 2867 } 2868 } 2869 } // end disconnect 2870 2871 return NO_ERROR; 2872} 2873 2874 2875void AudioPolicyManager::closeOutput(audio_io_handle_t output) 2876{ 2877 ALOGV("closeOutput(%d)", output); 2878 2879 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 2880 if (outputDesc == NULL) { 2881 ALOGW("closeOutput() unknown output %d", output); 2882 return; 2883 } 2884 2885 // look for duplicated outputs connected to the output being removed. 2886 for (size_t i = 0; i < mOutputs.size(); i++) { 2887 AudioOutputDescriptor *dupOutputDesc = mOutputs.valueAt(i); 2888 if (dupOutputDesc->isDuplicated() && 2889 (dupOutputDesc->mOutput1 == outputDesc || 2890 dupOutputDesc->mOutput2 == outputDesc)) { 2891 AudioOutputDescriptor *outputDesc2; 2892 if (dupOutputDesc->mOutput1 == outputDesc) { 2893 outputDesc2 = dupOutputDesc->mOutput2; 2894 } else { 2895 outputDesc2 = dupOutputDesc->mOutput1; 2896 } 2897 // As all active tracks on duplicated output will be deleted, 2898 // and as they were also referenced on the other output, the reference 2899 // count for their stream type must be adjusted accordingly on 2900 // the other output. 2901 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 2902 int refCount = dupOutputDesc->mRefCount[j]; 2903 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 2904 } 2905 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 2906 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 2907 2908 mpClientInterface->closeOutput(duplicatedOutput); 2909 delete mOutputs.valueFor(duplicatedOutput); 2910 mOutputs.removeItem(duplicatedOutput); 2911 } 2912 } 2913 2914 AudioParameter param; 2915 param.add(String8("closing"), String8("true")); 2916 mpClientInterface->setParameters(output, param.toString()); 2917 2918 mpClientInterface->closeOutput(output); 2919 delete outputDesc; 2920 mOutputs.removeItem(output); 2921 mPreviousOutputs = mOutputs; 2922 nextAudioPortGeneration(); 2923} 2924 2925SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device, 2926 DefaultKeyedVector<audio_io_handle_t, AudioOutputDescriptor *> openOutputs) 2927{ 2928 SortedVector<audio_io_handle_t> outputs; 2929 2930 ALOGVV("getOutputsForDevice() device %04x", device); 2931 for (size_t i = 0; i < openOutputs.size(); i++) { 2932 ALOGVV("output %d isDuplicated=%d device=%04x", 2933 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 2934 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 2935 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 2936 outputs.add(openOutputs.keyAt(i)); 2937 } 2938 } 2939 return outputs; 2940} 2941 2942bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 2943 SortedVector<audio_io_handle_t>& outputs2) 2944{ 2945 if (outputs1.size() != outputs2.size()) { 2946 return false; 2947 } 2948 for (size_t i = 0; i < outputs1.size(); i++) { 2949 if (outputs1[i] != outputs2[i]) { 2950 return false; 2951 } 2952 } 2953 return true; 2954} 2955 2956void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 2957{ 2958 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 2959 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 2960 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 2961 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 2962 2963 if (!vectorsEqual(srcOutputs,dstOutputs)) { 2964 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 2965 strategy, srcOutputs[0], dstOutputs[0]); 2966 // mute strategy while moving tracks from one output to another 2967 for (size_t i = 0; i < srcOutputs.size(); i++) { 2968 AudioOutputDescriptor *desc = mOutputs.valueFor(srcOutputs[i]); 2969 if (desc->isStrategyActive(strategy)) { 2970 setStrategyMute(strategy, true, srcOutputs[i]); 2971 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 2972 } 2973 } 2974 2975 // Move effects associated to this strategy from previous output to new output 2976 if (strategy == STRATEGY_MEDIA) { 2977 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 2978 SortedVector<audio_io_handle_t> moved; 2979 for (size_t i = 0; i < mEffects.size(); i++) { 2980 EffectDescriptor *desc = mEffects.valueAt(i); 2981 if (desc->mSession == AUDIO_SESSION_OUTPUT_MIX && 2982 desc->mIo != fxOutput) { 2983 if (moved.indexOf(desc->mIo) < 0) { 2984 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 2985 mEffects.keyAt(i), fxOutput); 2986 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, desc->mIo, 2987 fxOutput); 2988 moved.add(desc->mIo); 2989 } 2990 desc->mIo = fxOutput; 2991 } 2992 } 2993 } 2994 // Move tracks associated to this strategy from previous output to new output 2995 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 2996 if (getStrategy((audio_stream_type_t)i) == strategy) { 2997 mpClientInterface->invalidateStream((audio_stream_type_t)i); 2998 } 2999 } 3000 } 3001} 3002 3003void AudioPolicyManager::checkOutputForAllStrategies() 3004{ 3005 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3006 checkOutputForStrategy(STRATEGY_PHONE); 3007 checkOutputForStrategy(STRATEGY_SONIFICATION); 3008 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3009 checkOutputForStrategy(STRATEGY_MEDIA); 3010 checkOutputForStrategy(STRATEGY_DTMF); 3011} 3012 3013audio_io_handle_t AudioPolicyManager::getA2dpOutput() 3014{ 3015 for (size_t i = 0; i < mOutputs.size(); i++) { 3016 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i); 3017 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { 3018 return mOutputs.keyAt(i); 3019 } 3020 } 3021 3022 return 0; 3023} 3024 3025void AudioPolicyManager::checkA2dpSuspend() 3026{ 3027 audio_io_handle_t a2dpOutput = getA2dpOutput(); 3028 if (a2dpOutput == 0) { 3029 mA2dpSuspended = false; 3030 return; 3031 } 3032 3033 bool isScoConnected = 3034 (mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) != 0; 3035 // suspend A2DP output if: 3036 // (NOT already suspended) && 3037 // ((SCO device is connected && 3038 // (forced usage for communication || for record is SCO))) || 3039 // (phone state is ringing || in call) 3040 // 3041 // restore A2DP output if: 3042 // (Already suspended) && 3043 // ((SCO device is NOT connected || 3044 // (forced usage NOT for communication && NOT for record is SCO))) && 3045 // (phone state is NOT ringing && NOT in call) 3046 // 3047 if (mA2dpSuspended) { 3048 if ((!isScoConnected || 3049 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO) && 3050 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] != AUDIO_POLICY_FORCE_BT_SCO))) && 3051 ((mPhoneState != AUDIO_MODE_IN_CALL) && 3052 (mPhoneState != AUDIO_MODE_RINGTONE))) { 3053 3054 mpClientInterface->restoreOutput(a2dpOutput); 3055 mA2dpSuspended = false; 3056 } 3057 } else { 3058 if ((isScoConnected && 3059 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 3060 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO))) || 3061 ((mPhoneState == AUDIO_MODE_IN_CALL) || 3062 (mPhoneState == AUDIO_MODE_RINGTONE))) { 3063 3064 mpClientInterface->suspendOutput(a2dpOutput); 3065 mA2dpSuspended = true; 3066 } 3067 } 3068} 3069 3070audio_devices_t AudioPolicyManager::getNewOutputDevice(audio_io_handle_t output, bool fromCache) 3071{ 3072 audio_devices_t device = AUDIO_DEVICE_NONE; 3073 3074 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 3075 3076 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3077 if (index >= 0) { 3078 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3079 if (patchDesc->mUid != mUidCached) { 3080 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 3081 outputDesc->device(), outputDesc->mPatchHandle); 3082 return outputDesc->device(); 3083 } 3084 } 3085 3086 // check the following by order of priority to request a routing change if necessary: 3087 // 1: the strategy enforced audible is active on the output: 3088 // use device for strategy enforced audible 3089 // 2: we are in call or the strategy phone is active on the output: 3090 // use device for strategy phone 3091 // 3: the strategy sonification is active on the output: 3092 // use device for strategy sonification 3093 // 4: the strategy "respectful" sonification is active on the output: 3094 // use device for strategy "respectful" sonification 3095 // 5: the strategy media is active on the output: 3096 // use device for strategy media 3097 // 6: the strategy DTMF is active on the output: 3098 // use device for strategy DTMF 3099 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) { 3100 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3101 } else if (isInCall() || 3102 outputDesc->isStrategyActive(STRATEGY_PHONE)) { 3103 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 3104 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) { 3105 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 3106 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) { 3107 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 3108 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) { 3109 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 3110 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) { 3111 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 3112 } 3113 3114 ALOGV("getNewOutputDevice() selected device %x", device); 3115 return device; 3116} 3117 3118audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 3119{ 3120 AudioInputDescriptor *inputDesc = mInputs.valueFor(input); 3121 3122 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3123 if (index >= 0) { 3124 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3125 if (patchDesc->mUid != mUidCached) { 3126 ALOGV("getNewInputDevice() device %08x forced by patch %d", 3127 inputDesc->mDevice, inputDesc->mPatchHandle); 3128 return inputDesc->mDevice; 3129 } 3130 } 3131 3132 audio_devices_t device = getDeviceForInputSource(inputDesc->mInputSource); 3133 3134 ALOGV("getNewInputDevice() selected device %x", device); 3135 return device; 3136} 3137 3138uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 3139 return (uint32_t)getStrategy(stream); 3140} 3141 3142audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 3143 // By checking the range of stream before calling getStrategy, we avoid 3144 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 3145 // and then return STRATEGY_MEDIA, but we want to return the empty set. 3146 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_CNT) { 3147 return AUDIO_DEVICE_NONE; 3148 } 3149 audio_devices_t devices; 3150 AudioPolicyManager::routing_strategy strategy = getStrategy(stream); 3151 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 3152 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 3153 for (size_t i = 0; i < outputs.size(); i++) { 3154 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(outputs[i]); 3155 if (outputDesc->isStrategyActive(strategy)) { 3156 devices = outputDesc->device(); 3157 break; 3158 } 3159 } 3160 return devices; 3161} 3162 3163AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy( 3164 audio_stream_type_t stream) { 3165 // stream to strategy mapping 3166 switch (stream) { 3167 case AUDIO_STREAM_VOICE_CALL: 3168 case AUDIO_STREAM_BLUETOOTH_SCO: 3169 return STRATEGY_PHONE; 3170 case AUDIO_STREAM_RING: 3171 case AUDIO_STREAM_ALARM: 3172 return STRATEGY_SONIFICATION; 3173 case AUDIO_STREAM_NOTIFICATION: 3174 return STRATEGY_SONIFICATION_RESPECTFUL; 3175 case AUDIO_STREAM_DTMF: 3176 return STRATEGY_DTMF; 3177 default: 3178 ALOGE("unknown stream type"); 3179 case AUDIO_STREAM_SYSTEM: 3180 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs 3181 // while key clicks are played produces a poor result 3182 case AUDIO_STREAM_TTS: 3183 case AUDIO_STREAM_MUSIC: 3184 return STRATEGY_MEDIA; 3185 case AUDIO_STREAM_ENFORCED_AUDIBLE: 3186 return STRATEGY_ENFORCED_AUDIBLE; 3187 } 3188} 3189 3190void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 3191 switch(stream) { 3192 case AUDIO_STREAM_MUSIC: 3193 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3194 updateDevicesAndOutputs(); 3195 break; 3196 default: 3197 break; 3198 } 3199} 3200 3201audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 3202 bool fromCache) 3203{ 3204 uint32_t device = AUDIO_DEVICE_NONE; 3205 3206 if (fromCache) { 3207 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 3208 strategy, mDeviceForStrategy[strategy]); 3209 return mDeviceForStrategy[strategy]; 3210 } 3211 audio_devices_t availableOutputDeviceTypes = mAvailableOutputDevices.types(); 3212 switch (strategy) { 3213 3214 case STRATEGY_SONIFICATION_RESPECTFUL: 3215 if (isInCall()) { 3216 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3217 } else if (isStreamActiveRemotely(AUDIO_STREAM_MUSIC, 3218 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 3219 // while media is playing on a remote device, use the the sonification behavior. 3220 // Note that we test this usecase before testing if media is playing because 3221 // the isStreamActive() method only informs about the activity of a stream, not 3222 // if it's for local playback. Note also that we use the same delay between both tests 3223 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3224 } else if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 3225 // while media is playing (or has recently played), use the same device 3226 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 3227 } else { 3228 // when media is not playing anymore, fall back on the sonification behavior 3229 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3230 } 3231 3232 break; 3233 3234 case STRATEGY_DTMF: 3235 if (!isInCall()) { 3236 // when off call, DTMF strategy follows the same rules as MEDIA strategy 3237 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 3238 break; 3239 } 3240 // when in call, DTMF and PHONE strategies follow the same rules 3241 // FALL THROUGH 3242 3243 case STRATEGY_PHONE: 3244 // for phone strategy, we first consider the forced use and then the available devices by order 3245 // of priority 3246 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 3247 case AUDIO_POLICY_FORCE_BT_SCO: 3248 if (!isInCall() || strategy != STRATEGY_DTMF) { 3249 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 3250 if (device) break; 3251 } 3252 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 3253 if (device) break; 3254 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; 3255 if (device) break; 3256 // if SCO device is requested but no SCO device is available, fall back to default case 3257 // FALL THROUGH 3258 3259 default: // FORCE_NONE 3260 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP 3261 if (!isInCall() && 3262 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3263 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3264 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 3265 if (device) break; 3266 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 3267 if (device) break; 3268 } 3269 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 3270 if (device) break; 3271 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 3272 if (device) break; 3273 if (mPhoneState != AUDIO_MODE_IN_CALL) { 3274 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 3275 if (device) break; 3276 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 3277 if (device) break; 3278 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 3279 if (device) break; 3280 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 3281 if (device) break; 3282 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 3283 if (device) break; 3284 } 3285 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_EARPIECE; 3286 if (device) break; 3287 device = mDefaultOutputDevice->mDeviceType; 3288 if (device == AUDIO_DEVICE_NONE) { 3289 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); 3290 } 3291 break; 3292 3293 case AUDIO_POLICY_FORCE_SPEAKER: 3294 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to 3295 // A2DP speaker when forcing to speaker output 3296 if (!isInCall() && 3297 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3298 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3299 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 3300 if (device) break; 3301 } 3302 if (mPhoneState != AUDIO_MODE_IN_CALL) { 3303 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 3304 if (device) break; 3305 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 3306 if (device) break; 3307 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 3308 if (device) break; 3309 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 3310 if (device) break; 3311 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 3312 if (device) break; 3313 } 3314 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 3315 if (device) break; 3316 device = mDefaultOutputDevice->mDeviceType; 3317 if (device == AUDIO_DEVICE_NONE) { 3318 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); 3319 } 3320 break; 3321 } 3322 break; 3323 3324 case STRATEGY_SONIFICATION: 3325 3326 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by 3327 // handleIncallSonification(). 3328 if (isInCall()) { 3329 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); 3330 break; 3331 } 3332 // FALL THROUGH 3333 3334 case STRATEGY_ENFORCED_AUDIBLE: 3335 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION 3336 // except: 3337 // - when in call where it doesn't default to STRATEGY_PHONE behavior 3338 // - in countries where not enforced in which case it follows STRATEGY_MEDIA 3339 3340 if ((strategy == STRATEGY_SONIFICATION) || 3341 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) { 3342 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 3343 if (device == AUDIO_DEVICE_NONE) { 3344 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); 3345 } 3346 } 3347 // The second device used for sonification is the same as the device used by media strategy 3348 // FALL THROUGH 3349 3350 case STRATEGY_MEDIA: { 3351 uint32_t device2 = AUDIO_DEVICE_NONE; 3352 if (strategy != STRATEGY_SONIFICATION) { 3353 // no sonification on remote submix (e.g. WFD) 3354 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 3355 } 3356 if ((device2 == AUDIO_DEVICE_NONE) && 3357 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3358 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3359 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 3360 if (device2 == AUDIO_DEVICE_NONE) { 3361 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 3362 } 3363 if (device2 == AUDIO_DEVICE_NONE) { 3364 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 3365 } 3366 } 3367 if (device2 == AUDIO_DEVICE_NONE) { 3368 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 3369 } 3370 if (device2 == AUDIO_DEVICE_NONE) { 3371 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 3372 } 3373 if (device2 == AUDIO_DEVICE_NONE) { 3374 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 3375 } 3376 if (device2 == AUDIO_DEVICE_NONE) { 3377 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 3378 } 3379 if (device2 == AUDIO_DEVICE_NONE) { 3380 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 3381 } 3382 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { 3383 // no sonification on aux digital (e.g. HDMI) 3384 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 3385 } 3386 if ((device2 == AUDIO_DEVICE_NONE) && 3387 (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) { 3388 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 3389 } 3390 if (device2 == AUDIO_DEVICE_NONE) { 3391 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 3392 } 3393 3394 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or 3395 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise 3396 device |= device2; 3397 if (device) break; 3398 device = mDefaultOutputDevice->mDeviceType; 3399 if (device == AUDIO_DEVICE_NONE) { 3400 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); 3401 } 3402 } break; 3403 3404 default: 3405 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); 3406 break; 3407 } 3408 3409 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); 3410 return device; 3411} 3412 3413void AudioPolicyManager::updateDevicesAndOutputs() 3414{ 3415 for (int i = 0; i < NUM_STRATEGIES; i++) { 3416 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 3417 } 3418 mPreviousOutputs = mOutputs; 3419} 3420 3421uint32_t AudioPolicyManager::checkDeviceMuteStrategies(AudioOutputDescriptor *outputDesc, 3422 audio_devices_t prevDevice, 3423 uint32_t delayMs) 3424{ 3425 // mute/unmute strategies using an incompatible device combination 3426 // if muting, wait for the audio in pcm buffer to be drained before proceeding 3427 // if unmuting, unmute only after the specified delay 3428 if (outputDesc->isDuplicated()) { 3429 return 0; 3430 } 3431 3432 uint32_t muteWaitMs = 0; 3433 audio_devices_t device = outputDesc->device(); 3434 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 3435 3436 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 3437 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 3438 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 3439 bool doMute = false; 3440 3441 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 3442 doMute = true; 3443 outputDesc->mStrategyMutedByDevice[i] = true; 3444 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 3445 doMute = true; 3446 outputDesc->mStrategyMutedByDevice[i] = false; 3447 } 3448 if (doMute) { 3449 for (size_t j = 0; j < mOutputs.size(); j++) { 3450 AudioOutputDescriptor *desc = mOutputs.valueAt(j); 3451 // skip output if it does not share any device with current output 3452 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 3453 == AUDIO_DEVICE_NONE) { 3454 continue; 3455 } 3456 audio_io_handle_t curOutput = mOutputs.keyAt(j); 3457 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 3458 mute ? "muting" : "unmuting", i, curDevice, curOutput); 3459 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 3460 if (desc->isStrategyActive((routing_strategy)i)) { 3461 if (mute) { 3462 // FIXME: should not need to double latency if volume could be applied 3463 // immediately by the audioflinger mixer. We must account for the delay 3464 // between now and the next time the audioflinger thread for this output 3465 // will process a buffer (which corresponds to one buffer size, 3466 // usually 1/2 or 1/4 of the latency). 3467 if (muteWaitMs < desc->latency() * 2) { 3468 muteWaitMs = desc->latency() * 2; 3469 } 3470 } 3471 } 3472 } 3473 } 3474 } 3475 3476 // temporary mute output if device selection changes to avoid volume bursts due to 3477 // different per device volumes 3478 if (outputDesc->isActive() && (device != prevDevice)) { 3479 if (muteWaitMs < outputDesc->latency() * 2) { 3480 muteWaitMs = outputDesc->latency() * 2; 3481 } 3482 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 3483 if (outputDesc->isStrategyActive((routing_strategy)i)) { 3484 setStrategyMute((routing_strategy)i, true, outputDesc->mIoHandle); 3485 // do tempMute unmute after twice the mute wait time 3486 setStrategyMute((routing_strategy)i, false, outputDesc->mIoHandle, 3487 muteWaitMs *2, device); 3488 } 3489 } 3490 } 3491 3492 // wait for the PCM output buffers to empty before proceeding with the rest of the command 3493 if (muteWaitMs > delayMs) { 3494 muteWaitMs -= delayMs; 3495 usleep(muteWaitMs * 1000); 3496 return muteWaitMs; 3497 } 3498 return 0; 3499} 3500 3501uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output, 3502 audio_devices_t device, 3503 bool force, 3504 int delayMs, 3505 audio_patch_handle_t *patchHandle) 3506{ 3507 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 3508 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 3509 AudioParameter param; 3510 uint32_t muteWaitMs; 3511 3512 if (outputDesc->isDuplicated()) { 3513 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mIoHandle, device, force, delayMs); 3514 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mIoHandle, device, force, delayMs); 3515 return muteWaitMs; 3516 } 3517 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 3518 // output profile 3519 if ((device != AUDIO_DEVICE_NONE) && 3520 ((device & outputDesc->mProfile->mSupportedDevices.types()) == 0)) { 3521 return 0; 3522 } 3523 3524 // filter devices according to output selected 3525 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types()); 3526 3527 audio_devices_t prevDevice = outputDesc->mDevice; 3528 3529 ALOGV("setOutputDevice() prevDevice %04x", prevDevice); 3530 3531 if (device != AUDIO_DEVICE_NONE) { 3532 outputDesc->mDevice = device; 3533 } 3534 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 3535 3536 // Do not change the routing if: 3537 // - the requested device is AUDIO_DEVICE_NONE 3538 // - the requested device is the same as current device and force is not specified. 3539 // Doing this check here allows the caller to call setOutputDevice() without conditions 3540 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force) { 3541 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", device, output); 3542 return muteWaitMs; 3543 } 3544 3545 ALOGV("setOutputDevice() changing device"); 3546 3547 // do the routing 3548 if (device == AUDIO_DEVICE_NONE) { 3549 resetOutputDevice(output, delayMs, NULL); 3550 } else { 3551 DeviceVector deviceList = mAvailableOutputDevices.getDevicesFromType(device); 3552 if (!deviceList.isEmpty()) { 3553 struct audio_patch patch; 3554 outputDesc->toAudioPortConfig(&patch.sources[0]); 3555 patch.num_sources = 1; 3556 patch.num_sinks = 0; 3557 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 3558 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 3559 patch.num_sinks++; 3560 } 3561 ssize_t index; 3562 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 3563 index = mAudioPatches.indexOfKey(*patchHandle); 3564 } else { 3565 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3566 } 3567 sp< AudioPatch> patchDesc; 3568 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 3569 if (index >= 0) { 3570 patchDesc = mAudioPatches.valueAt(index); 3571 afPatchHandle = patchDesc->mAfPatchHandle; 3572 } 3573 3574 status_t status = mpClientInterface->createAudioPatch(&patch, 3575 &afPatchHandle, 3576 delayMs); 3577 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 3578 "num_sources %d num_sinks %d", 3579 status, afPatchHandle, patch.num_sources, patch.num_sinks); 3580 if (status == NO_ERROR) { 3581 if (index < 0) { 3582 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 3583 &patch, mUidCached); 3584 addAudioPatch(patchDesc->mHandle, patchDesc); 3585 } else { 3586 patchDesc->mPatch = patch; 3587 } 3588 patchDesc->mAfPatchHandle = afPatchHandle; 3589 patchDesc->mUid = mUidCached; 3590 if (patchHandle) { 3591 *patchHandle = patchDesc->mHandle; 3592 } 3593 outputDesc->mPatchHandle = patchDesc->mHandle; 3594 nextAudioPortGeneration(); 3595 mpClientInterface->onAudioPatchListUpdate(); 3596 } 3597 } 3598 } 3599 3600 // update stream volumes according to new device 3601 applyStreamVolumes(output, device, delayMs); 3602 3603 return muteWaitMs; 3604} 3605 3606status_t AudioPolicyManager::resetOutputDevice(audio_io_handle_t output, 3607 int delayMs, 3608 audio_patch_handle_t *patchHandle) 3609{ 3610 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 3611 ssize_t index; 3612 if (patchHandle) { 3613 index = mAudioPatches.indexOfKey(*patchHandle); 3614 } else { 3615 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3616 } 3617 if (index < 0) { 3618 return INVALID_OPERATION; 3619 } 3620 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3621 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 3622 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 3623 outputDesc->mPatchHandle = 0; 3624 removeAudioPatch(patchDesc->mHandle); 3625 nextAudioPortGeneration(); 3626 mpClientInterface->onAudioPatchListUpdate(); 3627 return status; 3628} 3629 3630status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 3631 audio_devices_t device, 3632 bool force, 3633 audio_patch_handle_t *patchHandle) 3634{ 3635 status_t status = NO_ERROR; 3636 3637 AudioInputDescriptor *inputDesc = mInputs.valueFor(input); 3638 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 3639 inputDesc->mDevice = device; 3640 3641 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 3642 if (!deviceList.isEmpty()) { 3643 struct audio_patch patch; 3644 inputDesc->toAudioPortConfig(&patch.sinks[0]); 3645 patch.num_sinks = 1; 3646 //only one input device for now 3647 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 3648 patch.num_sources = 1; 3649 ssize_t index; 3650 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 3651 index = mAudioPatches.indexOfKey(*patchHandle); 3652 } else { 3653 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3654 } 3655 sp< AudioPatch> patchDesc; 3656 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 3657 if (index >= 0) { 3658 patchDesc = mAudioPatches.valueAt(index); 3659 afPatchHandle = patchDesc->mAfPatchHandle; 3660 } 3661 3662 status_t status = mpClientInterface->createAudioPatch(&patch, 3663 &afPatchHandle, 3664 0); 3665 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 3666 status, afPatchHandle); 3667 if (status == NO_ERROR) { 3668 if (index < 0) { 3669 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 3670 &patch, mUidCached); 3671 addAudioPatch(patchDesc->mHandle, patchDesc); 3672 } else { 3673 patchDesc->mPatch = patch; 3674 } 3675 patchDesc->mAfPatchHandle = afPatchHandle; 3676 patchDesc->mUid = mUidCached; 3677 if (patchHandle) { 3678 *patchHandle = patchDesc->mHandle; 3679 } 3680 inputDesc->mPatchHandle = patchDesc->mHandle; 3681 nextAudioPortGeneration(); 3682 mpClientInterface->onAudioPatchListUpdate(); 3683 } 3684 } 3685 } 3686 return status; 3687} 3688 3689status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 3690 audio_patch_handle_t *patchHandle) 3691{ 3692 AudioInputDescriptor *inputDesc = mInputs.valueFor(input); 3693 ssize_t index; 3694 if (patchHandle) { 3695 index = mAudioPatches.indexOfKey(*patchHandle); 3696 } else { 3697 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3698 } 3699 if (index < 0) { 3700 return INVALID_OPERATION; 3701 } 3702 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3703 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3704 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 3705 inputDesc->mPatchHandle = 0; 3706 removeAudioPatch(patchDesc->mHandle); 3707 nextAudioPortGeneration(); 3708 mpClientInterface->onAudioPatchListUpdate(); 3709 return status; 3710} 3711 3712sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 3713 uint32_t samplingRate, 3714 audio_format_t format, 3715 audio_channel_mask_t channelMask) 3716{ 3717 // Choose an input profile based on the requested capture parameters: select the first available 3718 // profile supporting all requested parameters. 3719 3720 for (size_t i = 0; i < mHwModules.size(); i++) 3721 { 3722 if (mHwModules[i]->mHandle == 0) { 3723 continue; 3724 } 3725 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 3726 { 3727 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 3728 // profile->log(); 3729 if (profile->isCompatibleProfile(device, samplingRate, format, 3730 channelMask, AUDIO_OUTPUT_FLAG_NONE)) { 3731 return profile; 3732 } 3733 } 3734 } 3735 return NULL; 3736} 3737 3738audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 3739{ 3740 uint32_t device = AUDIO_DEVICE_NONE; 3741 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 3742 ~AUDIO_DEVICE_BIT_IN; 3743 switch (inputSource) { 3744 case AUDIO_SOURCE_VOICE_UPLINK: 3745 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 3746 device = AUDIO_DEVICE_IN_VOICE_CALL; 3747 break; 3748 } 3749 // FALL THROUGH 3750 3751 case AUDIO_SOURCE_DEFAULT: 3752 case AUDIO_SOURCE_MIC: 3753 case AUDIO_SOURCE_VOICE_RECOGNITION: 3754 case AUDIO_SOURCE_HOTWORD: 3755 case AUDIO_SOURCE_VOICE_COMMUNICATION: 3756 if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO && 3757 availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 3758 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 3759 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 3760 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 3761 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 3762 device = AUDIO_DEVICE_IN_USB_DEVICE; 3763 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 3764 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 3765 } 3766 break; 3767 case AUDIO_SOURCE_CAMCORDER: 3768 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 3769 device = AUDIO_DEVICE_IN_BACK_MIC; 3770 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 3771 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 3772 } 3773 break; 3774 case AUDIO_SOURCE_VOICE_DOWNLINK: 3775 case AUDIO_SOURCE_VOICE_CALL: 3776 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 3777 device = AUDIO_DEVICE_IN_VOICE_CALL; 3778 } 3779 break; 3780 case AUDIO_SOURCE_REMOTE_SUBMIX: 3781 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 3782 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 3783 } 3784 break; 3785 default: 3786 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); 3787 break; 3788 } 3789 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); 3790 return device; 3791} 3792 3793bool AudioPolicyManager::isVirtualInputDevice(audio_devices_t device) 3794{ 3795 if ((device & AUDIO_DEVICE_BIT_IN) != 0) { 3796 device &= ~AUDIO_DEVICE_BIT_IN; 3797 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0)) 3798 return true; 3799 } 3800 return false; 3801} 3802 3803audio_io_handle_t AudioPolicyManager::getActiveInput(bool ignoreVirtualInputs) 3804{ 3805 for (size_t i = 0; i < mInputs.size(); i++) { 3806 const AudioInputDescriptor * input_descriptor = mInputs.valueAt(i); 3807 if ((input_descriptor->mRefCount > 0) 3808 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) { 3809 return mInputs.keyAt(i); 3810 } 3811 } 3812 return 0; 3813} 3814 3815 3816audio_devices_t AudioPolicyManager::getDeviceForVolume(audio_devices_t device) 3817{ 3818 if (device == AUDIO_DEVICE_NONE) { 3819 // this happens when forcing a route update and no track is active on an output. 3820 // In this case the returned category is not important. 3821 device = AUDIO_DEVICE_OUT_SPEAKER; 3822 } else if (popcount(device) > 1) { 3823 // Multiple device selection is either: 3824 // - speaker + one other device: give priority to speaker in this case. 3825 // - one A2DP device + another device: happens with duplicated output. In this case 3826 // retain the device on the A2DP output as the other must not correspond to an active 3827 // selection if not the speaker. 3828 if (device & AUDIO_DEVICE_OUT_SPEAKER) { 3829 device = AUDIO_DEVICE_OUT_SPEAKER; 3830 } else { 3831 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); 3832 } 3833 } 3834 3835 ALOGW_IF(popcount(device) != 1, 3836 "getDeviceForVolume() invalid device combination: %08x", 3837 device); 3838 3839 return device; 3840} 3841 3842AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device) 3843{ 3844 switch(getDeviceForVolume(device)) { 3845 case AUDIO_DEVICE_OUT_EARPIECE: 3846 return DEVICE_CATEGORY_EARPIECE; 3847 case AUDIO_DEVICE_OUT_WIRED_HEADSET: 3848 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: 3849 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: 3850 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: 3851 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: 3852 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: 3853 return DEVICE_CATEGORY_HEADSET; 3854 case AUDIO_DEVICE_OUT_SPEAKER: 3855 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: 3856 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: 3857 case AUDIO_DEVICE_OUT_AUX_DIGITAL: 3858 case AUDIO_DEVICE_OUT_USB_ACCESSORY: 3859 case AUDIO_DEVICE_OUT_USB_DEVICE: 3860 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: 3861 default: 3862 return DEVICE_CATEGORY_SPEAKER; 3863 } 3864} 3865 3866float AudioPolicyManager::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, 3867 int indexInUi) 3868{ 3869 device_category deviceCategory = getDeviceCategory(device); 3870 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; 3871 3872 // the volume index in the UI is relative to the min and max volume indices for this stream type 3873 int nbSteps = 1 + curve[VOLMAX].mIndex - 3874 curve[VOLMIN].mIndex; 3875 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / 3876 (streamDesc.mIndexMax - streamDesc.mIndexMin); 3877 3878 // find what part of the curve this index volume belongs to, or if it's out of bounds 3879 int segment = 0; 3880 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds 3881 return 0.0f; 3882 } else if (volIdx < curve[VOLKNEE1].mIndex) { 3883 segment = 0; 3884 } else if (volIdx < curve[VOLKNEE2].mIndex) { 3885 segment = 1; 3886 } else if (volIdx <= curve[VOLMAX].mIndex) { 3887 segment = 2; 3888 } else { // out of bounds 3889 return 1.0f; 3890 } 3891 3892 // linear interpolation in the attenuation table in dB 3893 float decibels = curve[segment].mDBAttenuation + 3894 ((float)(volIdx - curve[segment].mIndex)) * 3895 ( (curve[segment+1].mDBAttenuation - 3896 curve[segment].mDBAttenuation) / 3897 ((float)(curve[segment+1].mIndex - 3898 curve[segment].mIndex)) ); 3899 3900 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) 3901 3902 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", 3903 curve[segment].mIndex, volIdx, 3904 curve[segment+1].mIndex, 3905 curve[segment].mDBAttenuation, 3906 decibels, 3907 curve[segment+1].mDBAttenuation, 3908 amplification); 3909 3910 return amplification; 3911} 3912 3913const AudioPolicyManager::VolumeCurvePoint 3914 AudioPolicyManager::sDefaultVolumeCurve[AudioPolicyManager::VOLCNT] = { 3915 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 3916}; 3917 3918const AudioPolicyManager::VolumeCurvePoint 3919 AudioPolicyManager::sDefaultMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 3920 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 3921}; 3922 3923const AudioPolicyManager::VolumeCurvePoint 3924 AudioPolicyManager::sSpeakerMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 3925 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 3926}; 3927 3928const AudioPolicyManager::VolumeCurvePoint 3929 AudioPolicyManager::sSpeakerSonificationVolumeCurve[AudioPolicyManager::VOLCNT] = { 3930 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 3931}; 3932 3933const AudioPolicyManager::VolumeCurvePoint 3934 AudioPolicyManager::sSpeakerSonificationVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 3935 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} 3936}; 3937 3938// AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 3939// AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. 3940// AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). 3941// The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 3942 3943const AudioPolicyManager::VolumeCurvePoint 3944 AudioPolicyManager::sDefaultSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 3945 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 3946}; 3947 3948const AudioPolicyManager::VolumeCurvePoint 3949 AudioPolicyManager::sDefaultSystemVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 3950 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} 3951}; 3952 3953const AudioPolicyManager::VolumeCurvePoint 3954 AudioPolicyManager::sHeadsetSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 3955 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 3956}; 3957 3958const AudioPolicyManager::VolumeCurvePoint 3959 AudioPolicyManager::sDefaultVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 3960 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 3961}; 3962 3963const AudioPolicyManager::VolumeCurvePoint 3964 AudioPolicyManager::sSpeakerVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 3965 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 3966}; 3967 3968const AudioPolicyManager::VolumeCurvePoint 3969 *AudioPolicyManager::sVolumeProfiles[AUDIO_STREAM_CNT] 3970 [AudioPolicyManager::DEVICE_CATEGORY_CNT] = { 3971 { // AUDIO_STREAM_VOICE_CALL 3972 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 3973 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 3974 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE 3975 }, 3976 { // AUDIO_STREAM_SYSTEM 3977 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 3978 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 3979 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE 3980 }, 3981 { // AUDIO_STREAM_RING 3982 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 3983 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 3984 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE 3985 }, 3986 { // AUDIO_STREAM_MUSIC 3987 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 3988 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 3989 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE 3990 }, 3991 { // AUDIO_STREAM_ALARM 3992 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 3993 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 3994 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE 3995 }, 3996 { // AUDIO_STREAM_NOTIFICATION 3997 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 3998 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 3999 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE 4000 }, 4001 { // AUDIO_STREAM_BLUETOOTH_SCO 4002 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 4003 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4004 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE 4005 }, 4006 { // AUDIO_STREAM_ENFORCED_AUDIBLE 4007 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4008 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4009 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE 4010 }, 4011 { // AUDIO_STREAM_DTMF 4012 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4013 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4014 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE 4015 }, 4016 { // AUDIO_STREAM_TTS 4017 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 4018 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4019 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE 4020 }, 4021}; 4022 4023void AudioPolicyManager::initializeVolumeCurves() 4024{ 4025 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4026 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 4027 mStreams[i].mVolumeCurve[j] = 4028 sVolumeProfiles[i][j]; 4029 } 4030 } 4031 4032 // Check availability of DRC on speaker path: if available, override some of the speaker curves 4033 if (mSpeakerDrcEnabled) { 4034 mStreams[AUDIO_STREAM_SYSTEM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4035 sDefaultSystemVolumeCurveDrc; 4036 mStreams[AUDIO_STREAM_RING].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4037 sSpeakerSonificationVolumeCurveDrc; 4038 mStreams[AUDIO_STREAM_ALARM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4039 sSpeakerSonificationVolumeCurveDrc; 4040 mStreams[AUDIO_STREAM_NOTIFICATION].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4041 sSpeakerSonificationVolumeCurveDrc; 4042 } 4043} 4044 4045float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 4046 int index, 4047 audio_io_handle_t output, 4048 audio_devices_t device) 4049{ 4050 float volume = 1.0; 4051 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 4052 StreamDescriptor &streamDesc = mStreams[stream]; 4053 4054 if (device == AUDIO_DEVICE_NONE) { 4055 device = outputDesc->device(); 4056 } 4057 4058 // if volume is not 0 (not muted), force media volume to max on digital output 4059 if (stream == AUDIO_STREAM_MUSIC && 4060 index != mStreams[stream].mIndexMin && 4061 (device == AUDIO_DEVICE_OUT_AUX_DIGITAL || 4062 device == AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET || 4063 device == AUDIO_DEVICE_OUT_USB_ACCESSORY || 4064 device == AUDIO_DEVICE_OUT_USB_DEVICE)) { 4065 return 1.0; 4066 } 4067 4068 volume = volIndexToAmpl(device, streamDesc, index); 4069 4070 // if a headset is connected, apply the following rules to ring tones and notifications 4071 // to avoid sound level bursts in user's ears: 4072 // - always attenuate ring tones and notifications volume by 6dB 4073 // - if music is playing, always limit the volume to current music volume, 4074 // with a minimum threshold at -36dB so that notification is always perceived. 4075 const routing_strategy stream_strategy = getStrategy(stream); 4076 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 4077 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 4078 AUDIO_DEVICE_OUT_WIRED_HEADSET | 4079 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 4080 ((stream_strategy == STRATEGY_SONIFICATION) 4081 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 4082 || (stream == AUDIO_STREAM_SYSTEM) 4083 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 4084 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) && 4085 streamDesc.mCanBeMuted) { 4086 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 4087 // when the phone is ringing we must consider that music could have been paused just before 4088 // by the music application and behave as if music was active if the last music track was 4089 // just stopped 4090 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 4091 mLimitRingtoneVolume) { 4092 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 4093 float musicVol = computeVolume(AUDIO_STREAM_MUSIC, 4094 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice), 4095 output, 4096 musicDevice); 4097 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 4098 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 4099 if (volume > minVol) { 4100 volume = minVol; 4101 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 4102 } 4103 } 4104 } 4105 4106 return volume; 4107} 4108 4109status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 4110 int index, 4111 audio_io_handle_t output, 4112 audio_devices_t device, 4113 int delayMs, 4114 bool force) 4115{ 4116 4117 // do not change actual stream volume if the stream is muted 4118 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 4119 ALOGVV("checkAndSetVolume() stream %d muted count %d", 4120 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 4121 return NO_ERROR; 4122 } 4123 4124 // do not change in call volume if bluetooth is connected and vice versa 4125 if ((stream == AUDIO_STREAM_VOICE_CALL && 4126 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 4127 (stream == AUDIO_STREAM_BLUETOOTH_SCO && 4128 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO)) { 4129 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 4130 stream, mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 4131 return INVALID_OPERATION; 4132 } 4133 4134 float volume = computeVolume(stream, index, output, device); 4135 // We actually change the volume if: 4136 // - the float value returned by computeVolume() changed 4137 // - the force flag is set 4138 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 4139 force) { 4140 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 4141 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 4142 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 4143 // enabled 4144 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4145 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs); 4146 } 4147 mpClientInterface->setStreamVolume(stream, volume, output, delayMs); 4148 } 4149 4150 if (stream == AUDIO_STREAM_VOICE_CALL || 4151 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4152 float voiceVolume; 4153 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 4154 if (stream == AUDIO_STREAM_VOICE_CALL) { 4155 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; 4156 } else { 4157 voiceVolume = 1.0; 4158 } 4159 4160 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 4161 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 4162 mLastVoiceVolume = voiceVolume; 4163 } 4164 } 4165 4166 return NO_ERROR; 4167} 4168 4169void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output, 4170 audio_devices_t device, 4171 int delayMs, 4172 bool force) 4173{ 4174 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 4175 4176 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4177 checkAndSetVolume((audio_stream_type_t)stream, 4178 mStreams[stream].getVolumeIndex(device), 4179 output, 4180 device, 4181 delayMs, 4182 force); 4183 } 4184} 4185 4186void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 4187 bool on, 4188 audio_io_handle_t output, 4189 int delayMs, 4190 audio_devices_t device) 4191{ 4192 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 4193 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4194 if (getStrategy((audio_stream_type_t)stream) == strategy) { 4195 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device); 4196 } 4197 } 4198} 4199 4200void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 4201 bool on, 4202 audio_io_handle_t output, 4203 int delayMs, 4204 audio_devices_t device) 4205{ 4206 StreamDescriptor &streamDesc = mStreams[stream]; 4207 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 4208 if (device == AUDIO_DEVICE_NONE) { 4209 device = outputDesc->device(); 4210 } 4211 4212 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 4213 stream, on, output, outputDesc->mMuteCount[stream], device); 4214 4215 if (on) { 4216 if (outputDesc->mMuteCount[stream] == 0) { 4217 if (streamDesc.mCanBeMuted && 4218 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 4219 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) { 4220 checkAndSetVolume(stream, 0, output, device, delayMs); 4221 } 4222 } 4223 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 4224 outputDesc->mMuteCount[stream]++; 4225 } else { 4226 if (outputDesc->mMuteCount[stream] == 0) { 4227 ALOGV("setStreamMute() unmuting non muted stream!"); 4228 return; 4229 } 4230 if (--outputDesc->mMuteCount[stream] == 0) { 4231 checkAndSetVolume(stream, 4232 streamDesc.getVolumeIndex(device), 4233 output, 4234 device, 4235 delayMs); 4236 } 4237 } 4238} 4239 4240void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 4241 bool starting, bool stateChange) 4242{ 4243 // if the stream pertains to sonification strategy and we are in call we must 4244 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 4245 // in the device used for phone strategy and play the tone if the selected device does not 4246 // interfere with the device used for phone strategy 4247 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 4248 // many times as there are active tracks on the output 4249 const routing_strategy stream_strategy = getStrategy(stream); 4250 if ((stream_strategy == STRATEGY_SONIFICATION) || 4251 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 4252 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mPrimaryOutput); 4253 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 4254 stream, starting, outputDesc->mDevice, stateChange); 4255 if (outputDesc->mRefCount[stream]) { 4256 int muteCount = 1; 4257 if (stateChange) { 4258 muteCount = outputDesc->mRefCount[stream]; 4259 } 4260 if (audio_is_low_visibility(stream)) { 4261 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 4262 for (int i = 0; i < muteCount; i++) { 4263 setStreamMute(stream, starting, mPrimaryOutput); 4264 } 4265 } else { 4266 ALOGV("handleIncallSonification() high visibility"); 4267 if (outputDesc->device() & 4268 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 4269 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 4270 for (int i = 0; i < muteCount; i++) { 4271 setStreamMute(stream, starting, mPrimaryOutput); 4272 } 4273 } 4274 if (starting) { 4275 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 4276 AUDIO_STREAM_VOICE_CALL); 4277 } else { 4278 mpClientInterface->stopTone(); 4279 } 4280 } 4281 } 4282 } 4283} 4284 4285bool AudioPolicyManager::isInCall() 4286{ 4287 return isStateInCall(mPhoneState); 4288} 4289 4290bool AudioPolicyManager::isStateInCall(int state) { 4291 return ((state == AUDIO_MODE_IN_CALL) || 4292 (state == AUDIO_MODE_IN_COMMUNICATION)); 4293} 4294 4295uint32_t AudioPolicyManager::getMaxEffectsCpuLoad() 4296{ 4297 return MAX_EFFECTS_CPU_LOAD; 4298} 4299 4300uint32_t AudioPolicyManager::getMaxEffectsMemory() 4301{ 4302 return MAX_EFFECTS_MEMORY; 4303} 4304 4305 4306// --- AudioOutputDescriptor class implementation 4307 4308AudioPolicyManager::AudioOutputDescriptor::AudioOutputDescriptor( 4309 const sp<IOProfile>& profile) 4310 : mId(0), mIoHandle(0), mSamplingRate(0), mFormat(AUDIO_FORMAT_DEFAULT), 4311 mChannelMask(0), mLatency(0), 4312 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), 4313 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0) 4314{ 4315 // clear usage count for all stream types 4316 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4317 mRefCount[i] = 0; 4318 mCurVolume[i] = -1.0; 4319 mMuteCount[i] = 0; 4320 mStopTime[i] = 0; 4321 } 4322 for (int i = 0; i < NUM_STRATEGIES; i++) { 4323 mStrategyMutedByDevice[i] = false; 4324 } 4325 if (profile != NULL) { 4326 mSamplingRate = profile->mSamplingRates[0]; 4327 mFormat = profile->mFormats[0]; 4328 mChannelMask = profile->mChannelMasks[0]; 4329 mFlags = profile->mFlags; 4330 } 4331} 4332 4333audio_devices_t AudioPolicyManager::AudioOutputDescriptor::device() const 4334{ 4335 if (isDuplicated()) { 4336 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); 4337 } else { 4338 return mDevice; 4339 } 4340} 4341 4342uint32_t AudioPolicyManager::AudioOutputDescriptor::latency() 4343{ 4344 if (isDuplicated()) { 4345 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; 4346 } else { 4347 return mLatency; 4348 } 4349} 4350 4351bool AudioPolicyManager::AudioOutputDescriptor::sharesHwModuleWith( 4352 const AudioOutputDescriptor *outputDesc) 4353{ 4354 if (isDuplicated()) { 4355 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); 4356 } else if (outputDesc->isDuplicated()){ 4357 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); 4358 } else { 4359 return (mProfile->mModule == outputDesc->mProfile->mModule); 4360 } 4361} 4362 4363void AudioPolicyManager::AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, 4364 int delta) 4365{ 4366 // forward usage count change to attached outputs 4367 if (isDuplicated()) { 4368 mOutput1->changeRefCount(stream, delta); 4369 mOutput2->changeRefCount(stream, delta); 4370 } 4371 if ((delta + (int)mRefCount[stream]) < 0) { 4372 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", 4373 delta, stream, mRefCount[stream]); 4374 mRefCount[stream] = 0; 4375 return; 4376 } 4377 mRefCount[stream] += delta; 4378 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); 4379} 4380 4381audio_devices_t AudioPolicyManager::AudioOutputDescriptor::supportedDevices() 4382{ 4383 if (isDuplicated()) { 4384 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); 4385 } else { 4386 return mProfile->mSupportedDevices.types() ; 4387 } 4388} 4389 4390bool AudioPolicyManager::AudioOutputDescriptor::isActive(uint32_t inPastMs) const 4391{ 4392 return isStrategyActive(NUM_STRATEGIES, inPastMs); 4393} 4394 4395bool AudioPolicyManager::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy, 4396 uint32_t inPastMs, 4397 nsecs_t sysTime) const 4398{ 4399 if ((sysTime == 0) && (inPastMs != 0)) { 4400 sysTime = systemTime(); 4401 } 4402 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 4403 if (((getStrategy((audio_stream_type_t)i) == strategy) || 4404 (NUM_STRATEGIES == strategy)) && 4405 isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 4406 return true; 4407 } 4408 } 4409 return false; 4410} 4411 4412bool AudioPolicyManager::AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream, 4413 uint32_t inPastMs, 4414 nsecs_t sysTime) const 4415{ 4416 if (mRefCount[stream] != 0) { 4417 return true; 4418 } 4419 if (inPastMs == 0) { 4420 return false; 4421 } 4422 if (sysTime == 0) { 4423 sysTime = systemTime(); 4424 } 4425 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { 4426 return true; 4427 } 4428 return false; 4429} 4430 4431void AudioPolicyManager::AudioOutputDescriptor::toAudioPortConfig( 4432 struct audio_port_config *dstConfig, 4433 const struct audio_port_config *srcConfig) const 4434{ 4435 dstConfig->id = mId; 4436 dstConfig->role = AUDIO_PORT_ROLE_SOURCE; 4437 dstConfig->type = AUDIO_PORT_TYPE_MIX; 4438 dstConfig->sample_rate = mSamplingRate; 4439 dstConfig->channel_mask = mChannelMask; 4440 dstConfig->format = mFormat; 4441 dstConfig->gain.index = -1; 4442 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 4443 AUDIO_PORT_CONFIG_FORMAT; 4444 // use supplied variable configuration parameters if any 4445 if (srcConfig != NULL) { 4446 if (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 4447 dstConfig->sample_rate = srcConfig->sample_rate; 4448 } 4449 if (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 4450 dstConfig->channel_mask = srcConfig->channel_mask; 4451 } 4452 if (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 4453 dstConfig->format = srcConfig->format; 4454 } 4455 if (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 4456 dstConfig->gain = srcConfig->gain; 4457 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 4458 } 4459 } 4460 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 4461 dstConfig->ext.mix.handle = mIoHandle; 4462 dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; 4463} 4464 4465void AudioPolicyManager::AudioOutputDescriptor::toAudioPort( 4466 struct audio_port *port) const 4467{ 4468 mProfile->toAudioPort(port); 4469 port->id = mId; 4470 toAudioPortConfig(&port->active_config); 4471 port->ext.mix.hw_module = mProfile->mModule->mHandle; 4472 port->ext.mix.handle = mIoHandle; 4473 port->ext.mix.latency_class = 4474 mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; 4475} 4476 4477status_t AudioPolicyManager::AudioOutputDescriptor::dump(int fd) 4478{ 4479 const size_t SIZE = 256; 4480 char buffer[SIZE]; 4481 String8 result; 4482 4483 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 4484 result.append(buffer); 4485 snprintf(buffer, SIZE, " Format: %08x\n", mFormat); 4486 result.append(buffer); 4487 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 4488 result.append(buffer); 4489 snprintf(buffer, SIZE, " Latency: %d\n", mLatency); 4490 result.append(buffer); 4491 snprintf(buffer, SIZE, " Flags %08x\n", mFlags); 4492 result.append(buffer); 4493 snprintf(buffer, SIZE, " Devices %08x\n", device()); 4494 result.append(buffer); 4495 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); 4496 result.append(buffer); 4497 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 4498 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", 4499 i, mCurVolume[i], mRefCount[i], mMuteCount[i]); 4500 result.append(buffer); 4501 } 4502 write(fd, result.string(), result.size()); 4503 4504 return NO_ERROR; 4505} 4506 4507// --- AudioInputDescriptor class implementation 4508 4509AudioPolicyManager::AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile) 4510 : mId(0), mIoHandle(0), mSamplingRate(0), 4511 mFormat(AUDIO_FORMAT_DEFAULT), mChannelMask(0), 4512 mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), mRefCount(0), 4513 mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile) 4514{ 4515 if (profile != NULL) { 4516 mSamplingRate = profile->mSamplingRates[0]; 4517 mFormat = profile->mFormats[0]; 4518 mChannelMask = profile->mChannelMasks[0]; 4519 } 4520} 4521 4522void AudioPolicyManager::AudioInputDescriptor::toAudioPortConfig( 4523 struct audio_port_config *dstConfig, 4524 const struct audio_port_config *srcConfig) const 4525{ 4526 dstConfig->id = mId; 4527 dstConfig->role = AUDIO_PORT_ROLE_SINK; 4528 dstConfig->type = AUDIO_PORT_TYPE_MIX; 4529 dstConfig->sample_rate = mSamplingRate; 4530 dstConfig->channel_mask = mChannelMask; 4531 dstConfig->format = mFormat; 4532 dstConfig->gain.index = -1; 4533 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 4534 AUDIO_PORT_CONFIG_FORMAT; 4535 // use supplied variable configuration parameters if any 4536 if (srcConfig != NULL) { 4537 if (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 4538 dstConfig->sample_rate = srcConfig->sample_rate; 4539 } 4540 if (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 4541 dstConfig->channel_mask = srcConfig->channel_mask; 4542 } 4543 if (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 4544 dstConfig->format = srcConfig->format; 4545 } 4546 if (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 4547 dstConfig->gain = srcConfig->gain; 4548 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 4549 } 4550 } 4551} 4552 4553void AudioPolicyManager::AudioInputDescriptor::toAudioPort( 4554 struct audio_port *port) const 4555{ 4556 mProfile->toAudioPort(port); 4557 port->id = mId; 4558 toAudioPortConfig(&port->active_config); 4559 port->ext.mix.hw_module = mProfile->mModule->mHandle; 4560 port->ext.mix.handle = mIoHandle; 4561 port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL; 4562} 4563 4564status_t AudioPolicyManager::AudioInputDescriptor::dump(int fd) 4565{ 4566 const size_t SIZE = 256; 4567 char buffer[SIZE]; 4568 String8 result; 4569 4570 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 4571 result.append(buffer); 4572 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 4573 result.append(buffer); 4574 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 4575 result.append(buffer); 4576 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 4577 result.append(buffer); 4578 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount); 4579 result.append(buffer); 4580 write(fd, result.string(), result.size()); 4581 4582 return NO_ERROR; 4583} 4584 4585// --- StreamDescriptor class implementation 4586 4587AudioPolicyManager::StreamDescriptor::StreamDescriptor() 4588 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) 4589{ 4590 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); 4591} 4592 4593int AudioPolicyManager::StreamDescriptor::getVolumeIndex(audio_devices_t device) 4594{ 4595 device = AudioPolicyManager::getDeviceForVolume(device); 4596 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT 4597 if (mIndexCur.indexOfKey(device) < 0) { 4598 device = AUDIO_DEVICE_OUT_DEFAULT; 4599 } 4600 return mIndexCur.valueFor(device); 4601} 4602 4603void AudioPolicyManager::StreamDescriptor::dump(int fd) 4604{ 4605 const size_t SIZE = 256; 4606 char buffer[SIZE]; 4607 String8 result; 4608 4609 snprintf(buffer, SIZE, "%s %02d %02d ", 4610 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); 4611 result.append(buffer); 4612 for (size_t i = 0; i < mIndexCur.size(); i++) { 4613 snprintf(buffer, SIZE, "%04x : %02d, ", 4614 mIndexCur.keyAt(i), 4615 mIndexCur.valueAt(i)); 4616 result.append(buffer); 4617 } 4618 result.append("\n"); 4619 4620 write(fd, result.string(), result.size()); 4621} 4622 4623// --- EffectDescriptor class implementation 4624 4625status_t AudioPolicyManager::EffectDescriptor::dump(int fd) 4626{ 4627 const size_t SIZE = 256; 4628 char buffer[SIZE]; 4629 String8 result; 4630 4631 snprintf(buffer, SIZE, " I/O: %d\n", mIo); 4632 result.append(buffer); 4633 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy); 4634 result.append(buffer); 4635 snprintf(buffer, SIZE, " Session: %d\n", mSession); 4636 result.append(buffer); 4637 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name); 4638 result.append(buffer); 4639 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled"); 4640 result.append(buffer); 4641 write(fd, result.string(), result.size()); 4642 4643 return NO_ERROR; 4644} 4645 4646// --- HwModule class implementation 4647 4648AudioPolicyManager::HwModule::HwModule(const char *name) 4649 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), mHandle(0) 4650{ 4651} 4652 4653AudioPolicyManager::HwModule::~HwModule() 4654{ 4655 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 4656 mOutputProfiles[i]->mSupportedDevices.clear(); 4657 } 4658 for (size_t i = 0; i < mInputProfiles.size(); i++) { 4659 mInputProfiles[i]->mSupportedDevices.clear(); 4660 } 4661 free((void *)mName); 4662} 4663 4664void AudioPolicyManager::HwModule::dump(int fd) 4665{ 4666 const size_t SIZE = 256; 4667 char buffer[SIZE]; 4668 String8 result; 4669 4670 snprintf(buffer, SIZE, " - name: %s\n", mName); 4671 result.append(buffer); 4672 snprintf(buffer, SIZE, " - handle: %d\n", mHandle); 4673 result.append(buffer); 4674 write(fd, result.string(), result.size()); 4675 if (mOutputProfiles.size()) { 4676 write(fd, " - outputs:\n", strlen(" - outputs:\n")); 4677 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 4678 snprintf(buffer, SIZE, " output %zu:\n", i); 4679 write(fd, buffer, strlen(buffer)); 4680 mOutputProfiles[i]->dump(fd); 4681 } 4682 } 4683 if (mInputProfiles.size()) { 4684 write(fd, " - inputs:\n", strlen(" - inputs:\n")); 4685 for (size_t i = 0; i < mInputProfiles.size(); i++) { 4686 snprintf(buffer, SIZE, " input %zu:\n", i); 4687 write(fd, buffer, strlen(buffer)); 4688 mInputProfiles[i]->dump(fd); 4689 } 4690 } 4691} 4692 4693// --- AudioPort class implementation 4694 4695void AudioPolicyManager::AudioPort::toAudioPort(struct audio_port *port) const 4696{ 4697 port->role = mRole; 4698 port->type = mType; 4699 unsigned int i; 4700 for (i = 0; i < mSamplingRates.size() && i < AUDIO_PORT_MAX_SAMPLING_RATES; i++) { 4701 port->sample_rates[i] = mSamplingRates[i]; 4702 } 4703 port->num_sample_rates = i; 4704 for (i = 0; i < mChannelMasks.size() && i < AUDIO_PORT_MAX_CHANNEL_MASKS; i++) { 4705 port->channel_masks[i] = mChannelMasks[i]; 4706 } 4707 port->num_channel_masks = i; 4708 for (i = 0; i < mFormats.size() && i < AUDIO_PORT_MAX_FORMATS; i++) { 4709 port->formats[i] = mFormats[i]; 4710 } 4711 port->num_formats = i; 4712 port->num_gains = 0; 4713} 4714 4715 4716void AudioPolicyManager::AudioPort::loadSamplingRates(char *name) 4717{ 4718 char *str = strtok(name, "|"); 4719 4720 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling 4721 // rates should be read from the output stream after it is opened for the first time 4722 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 4723 mSamplingRates.add(0); 4724 return; 4725 } 4726 4727 while (str != NULL) { 4728 uint32_t rate = atoi(str); 4729 if (rate != 0) { 4730 ALOGV("loadSamplingRates() adding rate %d", rate); 4731 mSamplingRates.add(rate); 4732 } 4733 str = strtok(NULL, "|"); 4734 } 4735 return; 4736} 4737 4738void AudioPolicyManager::AudioPort::loadFormats(char *name) 4739{ 4740 char *str = strtok(name, "|"); 4741 4742 // by convention, "0' in the first entry in mFormats indicates the supported formats 4743 // should be read from the output stream after it is opened for the first time 4744 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 4745 mFormats.add(AUDIO_FORMAT_DEFAULT); 4746 return; 4747 } 4748 4749 while (str != NULL) { 4750 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable, 4751 ARRAY_SIZE(sFormatNameToEnumTable), 4752 str); 4753 if (format != AUDIO_FORMAT_DEFAULT) { 4754 mFormats.add(format); 4755 } 4756 str = strtok(NULL, "|"); 4757 } 4758 return; 4759} 4760 4761void AudioPolicyManager::AudioPort::loadInChannels(char *name) 4762{ 4763 const char *str = strtok(name, "|"); 4764 4765 ALOGV("loadInChannels() %s", name); 4766 4767 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 4768 mChannelMasks.add(0); 4769 return; 4770 } 4771 4772 while (str != NULL) { 4773 audio_channel_mask_t channelMask = 4774 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 4775 ARRAY_SIZE(sInChannelsNameToEnumTable), 4776 str); 4777 if (channelMask != 0) { 4778 ALOGV("loadInChannels() adding channelMask %04x", channelMask); 4779 mChannelMasks.add(channelMask); 4780 } 4781 str = strtok(NULL, "|"); 4782 } 4783 return; 4784} 4785 4786void AudioPolicyManager::AudioPort::loadOutChannels(char *name) 4787{ 4788 const char *str = strtok(name, "|"); 4789 4790 ALOGV("loadOutChannels() %s", name); 4791 4792 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel 4793 // masks should be read from the output stream after it is opened for the first time 4794 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 4795 mChannelMasks.add(0); 4796 return; 4797 } 4798 4799 while (str != NULL) { 4800 audio_channel_mask_t channelMask = 4801 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 4802 ARRAY_SIZE(sOutChannelsNameToEnumTable), 4803 str); 4804 if (channelMask != 0) { 4805 mChannelMasks.add(channelMask); 4806 } 4807 str = strtok(NULL, "|"); 4808 } 4809 return; 4810} 4811 4812// --- IOProfile class implementation 4813 4814AudioPolicyManager::IOProfile::IOProfile(audio_port_role_t role, HwModule *module) 4815 : AudioPort(AUDIO_PORT_TYPE_MIX, role, module), mFlags((audio_output_flags_t)0) 4816{ 4817} 4818 4819AudioPolicyManager::IOProfile::~IOProfile() 4820{ 4821} 4822 4823// checks if the IO profile is compatible with specified parameters. 4824// Sampling rate, format and channel mask must be specified in order to 4825// get a valid a match 4826bool AudioPolicyManager::IOProfile::isCompatibleProfile(audio_devices_t device, 4827 uint32_t samplingRate, 4828 audio_format_t format, 4829 audio_channel_mask_t channelMask, 4830 audio_output_flags_t flags) const 4831{ 4832 if (samplingRate == 0 || !audio_is_valid_format(format) || channelMask == 0) { 4833 return false; 4834 } 4835 4836 if ((mSupportedDevices.types() & device) != device) { 4837 return false; 4838 } 4839 if ((mFlags & flags) != flags) { 4840 return false; 4841 } 4842 size_t i; 4843 for (i = 0; i < mSamplingRates.size(); i++) 4844 { 4845 if (mSamplingRates[i] == samplingRate) { 4846 break; 4847 } 4848 } 4849 if (i == mSamplingRates.size()) { 4850 return false; 4851 } 4852 for (i = 0; i < mFormats.size(); i++) 4853 { 4854 if (mFormats[i] == format) { 4855 break; 4856 } 4857 } 4858 if (i == mFormats.size()) { 4859 return false; 4860 } 4861 for (i = 0; i < mChannelMasks.size(); i++) 4862 { 4863 if (mChannelMasks[i] == channelMask) { 4864 break; 4865 } 4866 } 4867 if (i == mChannelMasks.size()) { 4868 return false; 4869 } 4870 return true; 4871} 4872 4873void AudioPolicyManager::IOProfile::dump(int fd) 4874{ 4875 const size_t SIZE = 256; 4876 char buffer[SIZE]; 4877 String8 result; 4878 4879 snprintf(buffer, SIZE, " - sampling rates: "); 4880 result.append(buffer); 4881 for (size_t i = 0; i < mSamplingRates.size(); i++) { 4882 snprintf(buffer, SIZE, "%d", mSamplingRates[i]); 4883 result.append(buffer); 4884 result.append(i == (mSamplingRates.size() - 1) ? "\n" : ", "); 4885 } 4886 4887 snprintf(buffer, SIZE, " - channel masks: "); 4888 result.append(buffer); 4889 for (size_t i = 0; i < mChannelMasks.size(); i++) { 4890 snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]); 4891 result.append(buffer); 4892 result.append(i == (mChannelMasks.size() - 1) ? "\n" : ", "); 4893 } 4894 4895 snprintf(buffer, SIZE, " - formats: "); 4896 result.append(buffer); 4897 for (size_t i = 0; i < mFormats.size(); i++) { 4898 snprintf(buffer, SIZE, "0x%08x", mFormats[i]); 4899 result.append(buffer); 4900 result.append(i == (mFormats.size() - 1) ? "\n" : ", "); 4901 } 4902 4903 snprintf(buffer, SIZE, " - devices:\n"); 4904 result.append(buffer); 4905 write(fd, result.string(), result.size()); 4906 DeviceDescriptor::dumpHeader(fd, 6); 4907 for (size_t i = 0; i < mSupportedDevices.size(); i++) { 4908 mSupportedDevices[i]->dump(fd, 6); 4909 } 4910 4911 snprintf(buffer, SIZE, " - flags: 0x%04x\n", mFlags); 4912 result.append(buffer); 4913 4914 write(fd, result.string(), result.size()); 4915} 4916 4917void AudioPolicyManager::IOProfile::log() 4918{ 4919 const size_t SIZE = 256; 4920 char buffer[SIZE]; 4921 String8 result; 4922 4923 ALOGV(" - sampling rates: "); 4924 for (size_t i = 0; i < mSamplingRates.size(); i++) { 4925 ALOGV(" %d", mSamplingRates[i]); 4926 } 4927 4928 ALOGV(" - channel masks: "); 4929 for (size_t i = 0; i < mChannelMasks.size(); i++) { 4930 ALOGV(" 0x%04x", mChannelMasks[i]); 4931 } 4932 4933 ALOGV(" - formats: "); 4934 for (size_t i = 0; i < mFormats.size(); i++) { 4935 ALOGV(" 0x%08x", mFormats[i]); 4936 } 4937 4938 ALOGV(" - devices: 0x%04x\n", mSupportedDevices.types()); 4939 ALOGV(" - flags: 0x%04x\n", mFlags); 4940} 4941 4942 4943// --- DeviceDescriptor implementation 4944 4945bool AudioPolicyManager::DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const 4946{ 4947 // Devices are considered equal if they: 4948 // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE) 4949 // - have the same address or one device does not specify the address 4950 // - have the same channel mask or one device does not specify the channel mask 4951 return (mDeviceType == other->mDeviceType) && 4952 (mAddress == "" || other->mAddress == "" || mAddress == other->mAddress) && 4953 (mChannelMask == 0 || other->mChannelMask == 0 || 4954 mChannelMask == other->mChannelMask); 4955} 4956 4957void AudioPolicyManager::DeviceVector::refreshTypes() 4958{ 4959 mDeviceTypes = AUDIO_DEVICE_NONE; 4960 for(size_t i = 0; i < size(); i++) { 4961 mDeviceTypes |= itemAt(i)->mDeviceType; 4962 } 4963 ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes); 4964} 4965 4966ssize_t AudioPolicyManager::DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const 4967{ 4968 for(size_t i = 0; i < size(); i++) { 4969 if (item->equals(itemAt(i))) { 4970 return i; 4971 } 4972 } 4973 return -1; 4974} 4975 4976ssize_t AudioPolicyManager::DeviceVector::add(const sp<DeviceDescriptor>& item) 4977{ 4978 ssize_t ret = indexOf(item); 4979 4980 if (ret < 0) { 4981 ret = SortedVector::add(item); 4982 if (ret >= 0) { 4983 refreshTypes(); 4984 } 4985 } else { 4986 ALOGW("DeviceVector::add device %08x already in", item->mDeviceType); 4987 ret = -1; 4988 } 4989 return ret; 4990} 4991 4992ssize_t AudioPolicyManager::DeviceVector::remove(const sp<DeviceDescriptor>& item) 4993{ 4994 size_t i; 4995 ssize_t ret = indexOf(item); 4996 4997 if (ret < 0) { 4998 ALOGW("DeviceVector::remove device %08x not in", item->mDeviceType); 4999 } else { 5000 ret = SortedVector::removeAt(ret); 5001 if (ret >= 0) { 5002 refreshTypes(); 5003 } 5004 } 5005 return ret; 5006} 5007 5008void AudioPolicyManager::DeviceVector::loadDevicesFromType(audio_devices_t types) 5009{ 5010 DeviceVector deviceList; 5011 5012 uint32_t role_bit = AUDIO_DEVICE_BIT_IN & types; 5013 types &= ~role_bit; 5014 5015 while (types) { 5016 uint32_t i = 31 - __builtin_clz(types); 5017 uint32_t type = 1 << i; 5018 types &= ~type; 5019 add(new DeviceDescriptor(type | role_bit)); 5020 } 5021} 5022 5023sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDevice( 5024 audio_devices_t type, String8 address) const 5025{ 5026 sp<DeviceDescriptor> device; 5027 for (size_t i = 0; i < size(); i++) { 5028 if (itemAt(i)->mDeviceType == type) { 5029 device = itemAt(i); 5030 if (itemAt(i)->mAddress = address) { 5031 break; 5032 } 5033 } 5034 } 5035 ALOGV("DeviceVector::getDevice() for type %d address %s found %p", 5036 type, address.string(), device.get()); 5037 return device; 5038} 5039 5040sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromId( 5041 audio_port_handle_t id) const 5042{ 5043 sp<DeviceDescriptor> device; 5044 for (size_t i = 0; i < size(); i++) { 5045 ALOGV("DeviceVector::getDeviceFromId(%d) itemAt(%d)->mId %d", id, i, itemAt(i)->mId); 5046 if (itemAt(i)->mId == id) { 5047 device = itemAt(i); 5048 break; 5049 } 5050 } 5051 return device; 5052} 5053 5054AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromType( 5055 audio_devices_t type) const 5056{ 5057 DeviceVector devices; 5058 for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) { 5059 if (itemAt(i)->mDeviceType & type & ~AUDIO_DEVICE_BIT_IN) { 5060 devices.add(itemAt(i)); 5061 type &= ~itemAt(i)->mDeviceType; 5062 ALOGV("DeviceVector::getDevicesFromType() for type %x found %p", 5063 itemAt(i)->mDeviceType, itemAt(i).get()); 5064 } 5065 } 5066 return devices; 5067} 5068 5069void AudioPolicyManager::DeviceDescriptor::toAudioPortConfig( 5070 struct audio_port_config *dstConfig, 5071 const struct audio_port_config *srcConfig) const 5072{ 5073 dstConfig->id = mId; 5074 dstConfig->role = audio_is_output_device(mDeviceType) ? 5075 AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE; 5076 dstConfig->type = AUDIO_PORT_TYPE_DEVICE; 5077 dstConfig->channel_mask = mChannelMask; 5078 dstConfig->gain.index = -1; 5079 dstConfig->config_mask = AUDIO_PORT_CONFIG_CHANNEL_MASK; 5080 // use supplied variable configuration parameters if any 5081 if (srcConfig != NULL) { 5082 if (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 5083 dstConfig->channel_mask = srcConfig->channel_mask; 5084 } 5085 if (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 5086 dstConfig->gain = srcConfig->gain; 5087 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 5088 } 5089 } 5090 dstConfig->ext.device.type = mDeviceType; 5091 dstConfig->ext.device.hw_module = mModule->mHandle; 5092 strncpy(dstConfig->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 5093} 5094 5095void AudioPolicyManager::DeviceDescriptor::toAudioPort(struct audio_port *port) const 5096{ 5097 AudioPort::toAudioPort(port); 5098 port->id = mId; 5099 toAudioPortConfig(&port->active_config); 5100 port->ext.device.type = mDeviceType; 5101 port->ext.device.hw_module = mModule->mHandle; 5102 strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 5103} 5104 5105void AudioPolicyManager::DeviceDescriptor::dumpHeader(int fd, int spaces) 5106{ 5107 const size_t SIZE = 256; 5108 char buffer[SIZE]; 5109 5110 snprintf(buffer, SIZE, "%*s%-48s %-2s %-8s %-32s \n", 5111 spaces, "", "Type", "ID", "Cnl Mask", "Address"); 5112 write(fd, buffer, strlen(buffer)); 5113} 5114 5115status_t AudioPolicyManager::DeviceDescriptor::dump(int fd, int spaces) const 5116{ 5117 const size_t SIZE = 256; 5118 char buffer[SIZE]; 5119 5120 snprintf(buffer, SIZE, "%*s%-48s %2d %08x %-32s \n", 5121 spaces, "", 5122 enumToString(sDeviceNameToEnumTable, 5123 ARRAY_SIZE(sDeviceNameToEnumTable), 5124 mDeviceType), 5125 mId, mChannelMask, mAddress.string()); 5126 write(fd, buffer, strlen(buffer)); 5127 5128 return NO_ERROR; 5129} 5130 5131 5132// --- audio_policy.conf file parsing 5133 5134audio_output_flags_t AudioPolicyManager::parseFlagNames(char *name) 5135{ 5136 uint32_t flag = 0; 5137 5138 // it is OK to cast name to non const here as we are not going to use it after 5139 // strtok() modifies it 5140 char *flagName = strtok(name, "|"); 5141 while (flagName != NULL) { 5142 if (strlen(flagName) != 0) { 5143 flag |= stringToEnum(sFlagNameToEnumTable, 5144 ARRAY_SIZE(sFlagNameToEnumTable), 5145 flagName); 5146 } 5147 flagName = strtok(NULL, "|"); 5148 } 5149 //force direct flag if offload flag is set: offloading implies a direct output stream 5150 // and all common behaviors are driven by checking only the direct flag 5151 // this should normally be set appropriately in the policy configuration file 5152 if ((flag & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 5153 flag |= AUDIO_OUTPUT_FLAG_DIRECT; 5154 } 5155 5156 return (audio_output_flags_t)flag; 5157} 5158 5159audio_devices_t AudioPolicyManager::parseDeviceNames(char *name) 5160{ 5161 uint32_t device = 0; 5162 5163 char *devName = strtok(name, "|"); 5164 while (devName != NULL) { 5165 if (strlen(devName) != 0) { 5166 device |= stringToEnum(sDeviceNameToEnumTable, 5167 ARRAY_SIZE(sDeviceNameToEnumTable), 5168 devName); 5169 } 5170 devName = strtok(NULL, "|"); 5171 } 5172 return device; 5173} 5174 5175status_t AudioPolicyManager::loadInput(cnode *root, HwModule *module) 5176{ 5177 cnode *node = root->first_child; 5178 5179 sp<IOProfile> profile = new IOProfile(AUDIO_PORT_ROLE_SINK, module); 5180 5181 while (node) { 5182 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 5183 profile->loadSamplingRates((char *)node->value); 5184 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 5185 profile->loadFormats((char *)node->value); 5186 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5187 profile->loadInChannels((char *)node->value); 5188 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 5189 profile->mSupportedDevices.loadDevicesFromType(parseDeviceNames((char *)node->value)); 5190 } 5191 node = node->next; 5192 } 5193 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 5194 "loadInput() invalid supported devices"); 5195 ALOGW_IF(profile->mChannelMasks.size() == 0, 5196 "loadInput() invalid supported channel masks"); 5197 ALOGW_IF(profile->mSamplingRates.size() == 0, 5198 "loadInput() invalid supported sampling rates"); 5199 ALOGW_IF(profile->mFormats.size() == 0, 5200 "loadInput() invalid supported formats"); 5201 if (!profile->mSupportedDevices.isEmpty() && 5202 (profile->mChannelMasks.size() != 0) && 5203 (profile->mSamplingRates.size() != 0) && 5204 (profile->mFormats.size() != 0)) { 5205 5206 ALOGV("loadInput() adding input Supported Devices %04x", 5207 profile->mSupportedDevices.types()); 5208 5209 module->mInputProfiles.add(profile); 5210 return NO_ERROR; 5211 } else { 5212 return BAD_VALUE; 5213 } 5214} 5215 5216status_t AudioPolicyManager::loadOutput(cnode *root, HwModule *module) 5217{ 5218 cnode *node = root->first_child; 5219 5220 sp<IOProfile> profile = new IOProfile(AUDIO_PORT_ROLE_SOURCE, module); 5221 5222 while (node) { 5223 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 5224 profile->loadSamplingRates((char *)node->value); 5225 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 5226 profile->loadFormats((char *)node->value); 5227 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5228 profile->loadOutChannels((char *)node->value); 5229 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 5230 profile->mSupportedDevices.loadDevicesFromType(parseDeviceNames((char *)node->value)); 5231 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 5232 profile->mFlags = parseFlagNames((char *)node->value); 5233 } 5234 node = node->next; 5235 } 5236 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 5237 "loadOutput() invalid supported devices"); 5238 ALOGW_IF(profile->mChannelMasks.size() == 0, 5239 "loadOutput() invalid supported channel masks"); 5240 ALOGW_IF(profile->mSamplingRates.size() == 0, 5241 "loadOutput() invalid supported sampling rates"); 5242 ALOGW_IF(profile->mFormats.size() == 0, 5243 "loadOutput() invalid supported formats"); 5244 if (!profile->mSupportedDevices.isEmpty() && 5245 (profile->mChannelMasks.size() != 0) && 5246 (profile->mSamplingRates.size() != 0) && 5247 (profile->mFormats.size() != 0)) { 5248 5249 ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x", 5250 profile->mSupportedDevices.types(), profile->mFlags); 5251 5252 module->mOutputProfiles.add(profile); 5253 return NO_ERROR; 5254 } else { 5255 return BAD_VALUE; 5256 } 5257} 5258 5259void AudioPolicyManager::loadHwModule(cnode *root) 5260{ 5261 cnode *node = config_find(root, OUTPUTS_TAG); 5262 status_t status = NAME_NOT_FOUND; 5263 5264 HwModule *module = new HwModule(root->name); 5265 5266 if (node != NULL) { 5267 node = node->first_child; 5268 while (node) { 5269 ALOGV("loadHwModule() loading output %s", node->name); 5270 status_t tmpStatus = loadOutput(node, module); 5271 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 5272 status = tmpStatus; 5273 } 5274 node = node->next; 5275 } 5276 } 5277 node = config_find(root, INPUTS_TAG); 5278 if (node != NULL) { 5279 node = node->first_child; 5280 while (node) { 5281 ALOGV("loadHwModule() loading input %s", node->name); 5282 status_t tmpStatus = loadInput(node, module); 5283 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 5284 status = tmpStatus; 5285 } 5286 node = node->next; 5287 } 5288 } 5289 if (status == NO_ERROR) { 5290 mHwModules.add(module); 5291 } else { 5292 delete module; 5293 } 5294} 5295 5296void AudioPolicyManager::loadHwModules(cnode *root) 5297{ 5298 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG); 5299 if (node == NULL) { 5300 return; 5301 } 5302 5303 node = node->first_child; 5304 while (node) { 5305 ALOGV("loadHwModules() loading module %s", node->name); 5306 loadHwModule(node); 5307 node = node->next; 5308 } 5309} 5310 5311void AudioPolicyManager::loadGlobalConfig(cnode *root) 5312{ 5313 cnode *node = config_find(root, GLOBAL_CONFIG_TAG); 5314 if (node == NULL) { 5315 return; 5316 } 5317 node = node->first_child; 5318 while (node) { 5319 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) { 5320 mAvailableOutputDevices.loadDevicesFromType(parseDeviceNames((char *)node->value)); 5321 ALOGV("loadGlobalConfig() Attached Output Devices %08x", 5322 mAvailableOutputDevices.types()); 5323 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) { 5324 audio_devices_t device = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable, 5325 ARRAY_SIZE(sDeviceNameToEnumTable), 5326 (char *)node->value); 5327 if (device != AUDIO_DEVICE_NONE) { 5328 mDefaultOutputDevice = new DeviceDescriptor(device); 5329 } else { 5330 ALOGW("loadGlobalConfig() default device not specified"); 5331 } 5332 ALOGV("loadGlobalConfig() mDefaultOutputDevice %08x", mDefaultOutputDevice->mDeviceType); 5333 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) { 5334 mAvailableInputDevices.loadDevicesFromType(parseDeviceNames((char *)node->value)); 5335 ALOGV("loadGlobalConfig() Available InputDevices %08x", mAvailableInputDevices.types()); 5336 } else if (strcmp(SPEAKER_DRC_ENABLED_TAG, node->name) == 0) { 5337 mSpeakerDrcEnabled = stringToBool((char *)node->value); 5338 ALOGV("loadGlobalConfig() mSpeakerDrcEnabled = %d", mSpeakerDrcEnabled); 5339 } 5340 node = node->next; 5341 } 5342} 5343 5344status_t AudioPolicyManager::loadAudioPolicyConfig(const char *path) 5345{ 5346 cnode *root; 5347 char *data; 5348 5349 data = (char *)load_file(path, NULL); 5350 if (data == NULL) { 5351 return -ENODEV; 5352 } 5353 root = config_node("", ""); 5354 config_load(root, data); 5355 5356 loadGlobalConfig(root); 5357 loadHwModules(root); 5358 5359 config_free(root); 5360 free(root); 5361 free(data); 5362 5363 ALOGI("loadAudioPolicyConfig() loaded %s\n", path); 5364 5365 return NO_ERROR; 5366} 5367 5368void AudioPolicyManager::defaultAudioPolicyConfig(void) 5369{ 5370 HwModule *module; 5371 sp<IOProfile> profile; 5372 sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(AUDIO_DEVICE_IN_BUILTIN_MIC); 5373 mAvailableOutputDevices.add(mDefaultOutputDevice); 5374 mAvailableInputDevices.add(defaultInputDevice); 5375 5376 module = new HwModule("primary"); 5377 5378 profile = new IOProfile(AUDIO_PORT_ROLE_SOURCE, module); 5379 profile->mSamplingRates.add(44100); 5380 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 5381 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 5382 profile->mSupportedDevices.add(mDefaultOutputDevice); 5383 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 5384 module->mOutputProfiles.add(profile); 5385 5386 profile = new IOProfile(AUDIO_PORT_ROLE_SINK, module); 5387 profile->mSamplingRates.add(8000); 5388 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 5389 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 5390 profile->mSupportedDevices.add(defaultInputDevice); 5391 module->mInputProfiles.add(profile); 5392 5393 mHwModules.add(module); 5394} 5395 5396}; // namespace android 5397