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 /* request to open a direct output with get_output() (by opposition to 34 * sharing an output with other AudioTracks) 35 */ 36 typedef enum { 37 AUDIO_POLICY_OUTPUT_FLAG_INDIRECT = 0x0, 38 AUDIO_POLICY_OUTPUT_FLAG_DIRECT = 0x1 39 } audio_policy_output_flags_t; 40 41 /* device categories used for audio_policy->set_force_use() */ 42 typedef enum { 43 AUDIO_POLICY_FORCE_NONE, 44 AUDIO_POLICY_FORCE_SPEAKER, 45 AUDIO_POLICY_FORCE_HEADPHONES, 46 AUDIO_POLICY_FORCE_BT_SCO, 47 AUDIO_POLICY_FORCE_BT_A2DP, 48 AUDIO_POLICY_FORCE_WIRED_ACCESSORY, 49 AUDIO_POLICY_FORCE_BT_CAR_DOCK, 50 AUDIO_POLICY_FORCE_BT_DESK_DOCK, 51 AUDIO_POLICY_FORCE_ANALOG_DOCK, 52 AUDIO_POLICY_FORCE_DIGITAL_DOCK, 53 54 AUDIO_POLICY_FORCE_CFG_CNT, 55 AUDIO_POLICY_FORCE_CFG_MAX = AUDIO_POLICY_FORCE_CFG_CNT - 1, 56 57 AUDIO_POLICY_FORCE_DEFAULT = AUDIO_POLICY_FORCE_NONE, 58 } audio_policy_forced_cfg_t; 59 60 /* usages used for audio_policy->set_force_use() */ 61 typedef enum { 62 AUDIO_POLICY_FORCE_FOR_COMMUNICATION, 63 AUDIO_POLICY_FORCE_FOR_MEDIA, 64 AUDIO_POLICY_FORCE_FOR_RECORD, 65 AUDIO_POLICY_FORCE_FOR_DOCK, 66 67 AUDIO_POLICY_FORCE_USE_CNT, 68 AUDIO_POLICY_FORCE_USE_MAX = AUDIO_POLICY_FORCE_USE_CNT - 1, 69 } audio_policy_force_use_t; 70 71 /* device connection states used for audio_policy->set_device_connection_state() 72 */ 73 typedef enum { 74 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 75 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 76 77 AUDIO_POLICY_DEVICE_STATE_CNT, 78 AUDIO_POLICY_DEVICE_STATE_MAX = AUDIO_POLICY_DEVICE_STATE_CNT - 1, 79 } audio_policy_dev_state_t; 80 81 typedef enum { 82 /* Used to generate a tone to notify the user of a 83 * notification/alarm/ringtone while they are in a call. */ 84 AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION = 0, 85 86 AUDIO_POLICY_TONE_CNT, 87 AUDIO_POLICY_TONE_MAX = AUDIO_POLICY_TONE_CNT - 1, 88 } audio_policy_tone_t; 89 90 91 static inline bool audio_is_low_visibility(audio_stream_type_t stream) 92 { 93 switch (stream) { 94 case AUDIO_STREAM_SYSTEM: 95 case AUDIO_STREAM_NOTIFICATION: 96 case AUDIO_STREAM_RING: 97 return true; 98 default: 99 return false; 100 } 101 } 102 103 104 __END_DECLS 105 106 #endif // ANDROID_AUDIO_POLICY_CORE_H 107
