1 /*
2  * Copyright (C) 2015 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 #include "AudioPolicyConfig.h"
20 #include "DeviceDescriptor.h"
21 #include "HwModule.h"
22 #include "audio_policy_conf.h"
23 #include <system/audio.h>
24 #include <utils/Log.h>
25 #include <utils/Vector.h>
26 #include <utils/SortedVector.h>
27 #include <cutils/config_utils.h>
28 #include <utils/RefBase.h>
29 #include <system/audio_policy.h>
30 
31 namespace android {
32 
33 // ----------------------------------------------------------------------------
34 // Definitions for audio_policy.conf file parsing
35 // ----------------------------------------------------------------------------
36 
37 class ConfigParsingUtils
38 {
39 public:
40     static status_t loadConfig(const char *path, AudioPolicyConfig &config);
41 
42 private:
43     static void loadAudioPortGain(cnode *root, AudioPort &audioPort, int index);
44     static void loadAudioPortGains(cnode *root, AudioPort &audioPort);
45     static void loadDeviceDescriptorGains(cnode *root, sp<DeviceDescriptor> &deviceDesc);
46     static status_t loadHwModuleDevice(cnode *root, DeviceVector &devices);
47     static status_t loadHwModuleProfile(cnode *root, sp<HwModule> &module, audio_port_role_t role);
48     static void loadDevicesFromTag(const char *tag, DeviceVector &devices,
49                             const DeviceVector &declaredDevices);
50     static void loadHwModules(cnode *root, HwModuleCollection &hwModules,
51                               AudioPolicyConfig &config);
52     static void loadGlobalConfig(cnode *root, AudioPolicyConfig &config,
53                                  const sp<HwModule> &primaryModule);
54     static void loadModuleGlobalConfig(cnode *root, const sp<HwModule> &module,
55                                        AudioPolicyConfig &config);
56     static status_t loadHwModule(cnode *root, sp<HwModule> &module, AudioPolicyConfig &config);
57 };
58 
59 }; // namespace android
60