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 typedef enum { 35 AUDIO_POLICY_FORCE_NONE, 36 AUDIO_POLICY_FORCE_SPEAKER, 37 AUDIO_POLICY_FORCE_HEADPHONES, 38 AUDIO_POLICY_FORCE_BT_SCO, 39 AUDIO_POLICY_FORCE_BT_A2DP, 40 AUDIO_POLICY_FORCE_WIRED_ACCESSORY, 41 AUDIO_POLICY_FORCE_BT_CAR_DOCK, 42 AUDIO_POLICY_FORCE_BT_DESK_DOCK, 43 AUDIO_POLICY_FORCE_ANALOG_DOCK, 44 AUDIO_POLICY_FORCE_DIGITAL_DOCK, 45 AUDIO_POLICY_FORCE_NO_BT_A2DP, /* A2DP sink is not preferred to speaker or wired HS */ 46 47 AUDIO_POLICY_FORCE_CFG_CNT, 48 AUDIO_POLICY_FORCE_CFG_MAX = AUDIO_POLICY_FORCE_CFG_CNT - 1, 49 50 AUDIO_POLICY_FORCE_DEFAULT = AUDIO_POLICY_FORCE_NONE, 51 } audio_policy_forced_cfg_t; 52 53 /* usages used for audio_policy->set_force_use() */ 54 typedef enum { 55 AUDIO_POLICY_FORCE_FOR_COMMUNICATION, 56 AUDIO_POLICY_FORCE_FOR_MEDIA, 57 AUDIO_POLICY_FORCE_FOR_RECORD, 58 AUDIO_POLICY_FORCE_FOR_DOCK, 59 60 AUDIO_POLICY_FORCE_USE_CNT, 61 AUDIO_POLICY_FORCE_USE_MAX = AUDIO_POLICY_FORCE_USE_CNT - 1, 62 } audio_policy_force_use_t; 63 64 /* device connection states used for audio_policy->set_device_connection_state() 65 */ 66 typedef enum { 67 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 68 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 69 70 AUDIO_POLICY_DEVICE_STATE_CNT, 71 AUDIO_POLICY_DEVICE_STATE_MAX = AUDIO_POLICY_DEVICE_STATE_CNT - 1, 72 } audio_policy_dev_state_t; 73 74 typedef enum { 75 /* Used to generate a tone to notify the user of a 76 * notification/alarm/ringtone while they are in a call. */ 77 AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION = 0, 78 79 AUDIO_POLICY_TONE_CNT, 80 AUDIO_POLICY_TONE_MAX = AUDIO_POLICY_TONE_CNT - 1, 81 } audio_policy_tone_t; 82 83 84 static inline bool audio_is_low_visibility(audio_stream_type_t stream) 85 { 86 switch (stream) { 87 case AUDIO_STREAM_SYSTEM: 88 case AUDIO_STREAM_NOTIFICATION: 89 case AUDIO_STREAM_RING: 90 return true; 91 default: 92 return false; 93 } 94 } 95 96 97 __END_DECLS 98 99 #endif // ANDROID_AUDIO_POLICY_CORE_H 100
