1 /*
2  * Copyright (C) 2012 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 #pragma once
18 
19 
20 /////////////////////////////////////////////////
21 //      Definitions for audio policy configuration file (audio_policy.conf)
22 /////////////////////////////////////////////////
23 
24 #define AUDIO_HARDWARE_MODULE_ID_MAX_LEN 32
25 
26 #define AUDIO_POLICY_CONFIG_FILE "/system/etc/audio_policy.conf"
27 #define AUDIO_POLICY_VENDOR_CONFIG_FILE "/vendor/etc/audio_policy.conf"
28 
29 // global configuration
30 #define GLOBAL_CONFIG_TAG "global_configuration"
31 
32 #define ATTACHED_OUTPUT_DEVICES_TAG "attached_output_devices"
33 #define DEFAULT_OUTPUT_DEVICE_TAG "default_output_device"
34 #define ATTACHED_INPUT_DEVICES_TAG "attached_input_devices"
35 #define SPEAKER_DRC_ENABLED_TAG "speaker_drc_enabled"
36 #define AUDIO_HAL_VERSION_TAG "audio_hal_version"
37 
38 // hw modules descriptions
39 #define AUDIO_HW_MODULE_TAG "audio_hw_modules"
40 
41 #define OUTPUTS_TAG "outputs"
42 #define INPUTS_TAG "inputs"
43 
44 #define SAMPLING_RATES_TAG "sampling_rates"
45 #define FORMATS_TAG "formats"
46 #define CHANNELS_TAG "channel_masks"
47 #define DEVICES_TAG "devices"
48 #define FLAGS_TAG "flags"
49 
50 #define DYNAMIC_VALUE_TAG "dynamic" // special value for "channel_masks", "sampling_rates" and
51                                     // "formats" in outputs descriptors indicating that supported
52                                     // values should be queried after opening the output.
53 
54 #define APM_DEVICES_TAG "devices"
55 #define APM_DEVICE_TYPE "type"
56 #define APM_DEVICE_ADDRESS "address"
57 
58 #define MIXERS_TAG "mixers"
59 #define MIXER_TYPE "type"
60 #define MIXER_TYPE_MUX "mux"
61 #define MIXER_TYPE_MIX "mix"
62 
63 #define GAINS_TAG "gains"
64 #define GAIN_MODE "mode"
65 #define GAIN_CHANNELS "channel_mask"
66 #define GAIN_MIN_VALUE "min_value_mB"
67 #define GAIN_MAX_VALUE "max_value_mB"
68 #define GAIN_DEFAULT_VALUE "default_value_mB"
69 #define GAIN_STEP_VALUE "step_value_mB"
70 #define GAIN_MIN_RAMP_MS "min_ramp_ms"
71 #define GAIN_MAX_RAMP_MS "max_ramp_ms"
72