1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 18 #ifndef ANDROID_AUDIO_POLICY_CORE_H 19 #define ANDROID_AUDIO_POLICY_CORE_H 20 21 #include <stdint.h> 22 #include <sys/cdefs.h> 23 #include <sys/types.h> 24 25 #include <cutils/bitops.h> 26 27 __BEGIN_DECLS 28 29 /* The enums were moved here mostly from 30 * frameworks/base/include/media/AudioSystem.h 31 */ 32 33 /* device categories used for audio_policy->set_force_use() 34 * These must match the values in AudioSystem.java 35 */ 36 typedef enum { 37 AUDIO_POLICY_FORCE_NONE, 38 AUDIO_POLICY_FORCE_SPEAKER, 39 AUDIO_POLICY_FORCE_HEADPHONES, 40 AUDIO_POLICY_FORCE_BT_SCO, 41 AUDIO_POLICY_FORCE_BT_A2DP, 42 AUDIO_POLICY_FORCE_WIRED_ACCESSORY, 43 AUDIO_POLICY_FORCE_BT_CAR_DOCK, 44 AUDIO_POLICY_FORCE_BT_DESK_DOCK, 45 AUDIO_POLICY_FORCE_ANALOG_DOCK, 46 AUDIO_POLICY_FORCE_DIGITAL_DOCK, 47 AUDIO_POLICY_FORCE_NO_BT_A2DP, /* A2DP sink is not preferred to speaker or wired HS */ 48 AUDIO_POLICY_FORCE_SYSTEM_ENFORCED, 49 AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED, 50 AUDIO_POLICY_FORCE_ENCODED_SURROUND_NEVER, 51 AUDIO_POLICY_FORCE_ENCODED_SURROUND_ALWAYS, 52 53 AUDIO_POLICY_FORCE_CFG_CNT, 54 AUDIO_POLICY_FORCE_CFG_MAX = AUDIO_POLICY_FORCE_CFG_CNT - 1, 55 56 AUDIO_POLICY_FORCE_DEFAULT = AUDIO_POLICY_FORCE_NONE, 57 } audio_policy_forced_cfg_t; 58 59 /* usages used for audio_policy->set_force_use() 60 * These must match the values in AudioSystem.java 61 */ 62 typedef enum { 63 AUDIO_POLICY_FORCE_FOR_COMMUNICATION, 64 AUDIO_POLICY_FORCE_FOR_MEDIA, 65 AUDIO_POLICY_FORCE_FOR_RECORD, 66 AUDIO_POLICY_FORCE_FOR_DOCK, 67 AUDIO_POLICY_FORCE_FOR_SYSTEM, 68 AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO, 69 AUDIO_POLICY_FORCE_FOR_ENCODED_SURROUND, 70 71 AUDIO_POLICY_FORCE_USE_CNT, 72 AUDIO_POLICY_FORCE_USE_MAX = AUDIO_POLICY_FORCE_USE_CNT - 1, 73 } audio_policy_force_use_t; 74 75 /* device connection states used for audio_policy->set_device_connection_state() 76 */ 77 typedef enum { 78 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 79 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 80 81 AUDIO_POLICY_DEVICE_STATE_CNT, 82 AUDIO_POLICY_DEVICE_STATE_MAX = AUDIO_POLICY_DEVICE_STATE_CNT - 1, 83 } audio_policy_dev_state_t; 84 85 typedef enum { 86 /* Used to generate a tone to notify the user of a 87 * notification/alarm/ringtone while they are in a call. */ 88 AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION = 0, 89 90 AUDIO_POLICY_TONE_CNT, 91 AUDIO_POLICY_TONE_MAX = AUDIO_POLICY_TONE_CNT - 1, 92 } audio_policy_tone_t; 93 94 95 static inline bool audio_is_low_visibility(audio_stream_type_t stream) 96 { 97 switch (stream) { 98 case AUDIO_STREAM_SYSTEM: 99 case AUDIO_STREAM_NOTIFICATION: 100 case AUDIO_STREAM_RING: 101 return true; 102 default: 103 return false; 104 } 105 } 106 107 108 __END_DECLS 109 110 #endif // ANDROID_AUDIO_POLICY_CORE_H 111
