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 */
36typedef 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 */
62typedef 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 */
77typedef 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
85typedef 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
95static 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