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 "DeviceDescriptor.h"
20 #include <utils/RefBase.h>
21 #include <utils/String8.h>
22 #include <utils/Errors.h>
23 #include <utils/Vector.h>
24 #include <system/audio.h>
25 #include <cutils/config_utils.h>
26 
27 namespace android {
28 
29 class IOProfile;
30 
31 class HwModule : public RefBase
32 {
33 public:
34     HwModule(const char *name);
35     ~HwModule();
36 
37     status_t loadOutput(cnode *root);
38     status_t loadInput(cnode *root);
39     status_t loadDevice(cnode *root);
40 
41     status_t addOutputProfile(String8 name, const audio_config_t *config,
42             audio_devices_t device, String8 address);
43     status_t removeOutputProfile(String8 name);
44     status_t addInputProfile(String8 name, const audio_config_t *config,
45             audio_devices_t device, String8 address);
46     status_t removeInputProfile(String8 name);
47 
getHandle()48     audio_module_handle_t getHandle() const { return mHandle; }
49 
50     void dump(int fd);
51 
52     const char *const        mName; // base name of the audio HW module (primary, a2dp ...)
53     uint32_t                 mHalVersion; // audio HAL API version
54     audio_module_handle_t    mHandle;
55     Vector < sp<IOProfile> > mOutputProfiles; // output profiles exposed by this module
56     Vector < sp<IOProfile> > mInputProfiles;  // input profiles exposed by this module
57     DeviceVector             mDeclaredDevices; // devices declared in audio_policy.conf
58 };
59 
60 class HwModuleCollection : public Vector< sp<HwModule> >
61 {
62 public:
63     sp<HwModule> getModuleFromName(const char *name) const;
64 
65     sp <HwModule> getModuleForDevice(audio_devices_t device) const;
66 
67     sp<DeviceDescriptor>  getDeviceDescriptor(const audio_devices_t device,
68                                               const char *device_address,
69                                               const char *device_name) const;
70 
71     status_t dump(int fd) const;
72 };
73 
74 }; // namespace android
75