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() */
34typedef 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    AUDIO_POLICY_FORCE_SYSTEM_ENFORCED,
47
48    AUDIO_POLICY_FORCE_CFG_CNT,
49    AUDIO_POLICY_FORCE_CFG_MAX = AUDIO_POLICY_FORCE_CFG_CNT - 1,
50
51    AUDIO_POLICY_FORCE_DEFAULT = AUDIO_POLICY_FORCE_NONE,
52} audio_policy_forced_cfg_t;
53
54/* usages used for audio_policy->set_force_use() */
55typedef enum {
56    AUDIO_POLICY_FORCE_FOR_COMMUNICATION,
57    AUDIO_POLICY_FORCE_FOR_MEDIA,
58    AUDIO_POLICY_FORCE_FOR_RECORD,
59    AUDIO_POLICY_FORCE_FOR_DOCK,
60    AUDIO_POLICY_FORCE_FOR_SYSTEM,
61
62    AUDIO_POLICY_FORCE_USE_CNT,
63    AUDIO_POLICY_FORCE_USE_MAX = AUDIO_POLICY_FORCE_USE_CNT - 1,
64} audio_policy_force_use_t;
65
66/* device connection states used for audio_policy->set_device_connection_state()
67 */
68typedef enum {
69    AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE,
70    AUDIO_POLICY_DEVICE_STATE_AVAILABLE,
71
72    AUDIO_POLICY_DEVICE_STATE_CNT,
73    AUDIO_POLICY_DEVICE_STATE_MAX = AUDIO_POLICY_DEVICE_STATE_CNT - 1,
74} audio_policy_dev_state_t;
75
76typedef enum {
77    /* Used to generate a tone to notify the user of a
78     * notification/alarm/ringtone while they are in a call. */
79    AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION = 0,
80
81    AUDIO_POLICY_TONE_CNT,
82    AUDIO_POLICY_TONE_MAX                  = AUDIO_POLICY_TONE_CNT - 1,
83} audio_policy_tone_t;
84
85
86static inline bool audio_is_low_visibility(audio_stream_type_t stream)
87{
88    switch (stream) {
89    case AUDIO_STREAM_SYSTEM:
90    case AUDIO_STREAM_NOTIFICATION:
91    case AUDIO_STREAM_RING:
92        return true;
93    default:
94        return false;
95    }
96}
97
98
99__END_DECLS
100
101#endif  // ANDROID_AUDIO_POLICY_CORE_H
102