1 /*
2 * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <hdf_base.h>
17 #include <hdf_device_desc.h>
18 #include <hdf_log.h>
19 #include <hdf_sbuf_ipc.h>
20 #include <v1_0/audio_manager_stub.h>
21
22 #include "audio_manager_interface_impl.h"
23 #include <shared_mutex>
24
25 using namespace OHOS::HDI::DistributedAudio::Audio::V1_0;
26
27 namespace {
28 std::shared_mutex mutex_;
29 }
30
31 struct HdfAudioManagerHost {
32 struct IDeviceIoService ioService;
33 OHOS::sptr<OHOS::IRemoteObject> stub;
34 };
35
AudioManagerDriverDispatch(struct HdfDeviceIoClient * client,int cmdId,struct HdfSBuf * data,struct HdfSBuf * reply)36 static int32_t AudioManagerDriverDispatch(struct HdfDeviceIoClient *client, int cmdId, struct HdfSBuf *data,
37 struct HdfSBuf *reply)
38 {
39 OHOS::MessageParcel *dataParcel = nullptr;
40 OHOS::MessageParcel *replyParcel = nullptr;
41 OHOS::MessageOption option;
42 if (SbufToParcel(data, &dataParcel) != HDF_SUCCESS) {
43 HDF_LOGE("%{public}s:invalid data sbuf object to dispatch", __func__);
44 return HDF_ERR_INVALID_PARAM;
45 }
46 if (SbufToParcel(reply, &replyParcel) != HDF_SUCCESS) {
47 HDF_LOGE("%{public}s:invalid reply sbuf object to dispatch", __func__);
48 return HDF_ERR_INVALID_PARAM;
49 }
50
51 std::shared_lock lock(mutex_);
52 if (client == nullptr || client->device == nullptr || client->device->service == nullptr) {
53 HDF_LOGE("%{public}s: client or client.device or service is nullptr", __func__);
54 return HDF_FAILURE;
55 }
56 auto *hdfAudioManagerHost = CONTAINER_OF(client->device->service, struct HdfAudioManagerHost, ioService);
57 if (hdfAudioManagerHost == NULL || hdfAudioManagerHost->stub == NULL) {
58 HDF_LOGE("%{public}s:invalid hdfAudioManagerHost", __func__);
59 return HDF_ERR_INVALID_PARAM;
60 }
61 return hdfAudioManagerHost->stub->SendRequest(cmdId, *dataParcel, *replyParcel, option);
62 }
63
HdfAudioManagerDriverInit(struct HdfDeviceObject * deviceObject)64 int HdfAudioManagerDriverInit(struct HdfDeviceObject *deviceObject)
65 {
66 HDF_LOGI("Hdf audio manager driver init.");
67 AudioManagerInterfaceImpl::GetAudioManager()->SetDeviceObject(deviceObject);
68 HdfDeviceSetClass(deviceObject, DEVICE_CLASS_AUDIO);
69 return HDF_SUCCESS;
70 }
71
HdfAudioManagerDriverBind(struct HdfDeviceObject * deviceObject)72 int HdfAudioManagerDriverBind(struct HdfDeviceObject *deviceObject)
73 {
74 HDF_LOGI("Hdf audio manager driver bind.");
75
76 if (deviceObject == nullptr) {
77 HDF_LOGE("%{public}s: deviceObject is nullptr", __func__);
78 return HDF_FAILURE;
79 }
80
81 auto *hdfAudioManagerHost = new (std::nothrow) HdfAudioManagerHost;
82 if (hdfAudioManagerHost == nullptr) {
83 HDF_LOGE("%{public}s: failed to create create HdfAudioManagerHost object", __func__);
84 return HDF_FAILURE;
85 }
86
87 hdfAudioManagerHost->ioService.Dispatch = AudioManagerDriverDispatch;
88 hdfAudioManagerHost->ioService.Open = NULL;
89 hdfAudioManagerHost->ioService.Release = NULL;
90
91 auto serviceImpl = IAudioManager::Get("daudio_primary_service", true);
92 if (serviceImpl == nullptr) {
93 HDF_LOGE("%{public}s: failed to get of implement service", __func__);
94 delete hdfAudioManagerHost;
95 return HDF_FAILURE;
96 }
97
98 hdfAudioManagerHost->stub = OHOS::HDI::ObjectCollector::GetInstance().GetOrNewObject(serviceImpl,
99 IAudioManager::GetDescriptor());
100 if (hdfAudioManagerHost->stub == nullptr) {
101 HDF_LOGE("%{public}s: failed to get stub object", __func__);
102 delete hdfAudioManagerHost;
103 return HDF_FAILURE;
104 }
105
106 deviceObject->service = &hdfAudioManagerHost->ioService;
107 return HDF_SUCCESS;
108 }
109
HdfAudioManagerDriverRelease(struct HdfDeviceObject * deviceObject)110 void HdfAudioManagerDriverRelease(struct HdfDeviceObject *deviceObject)
111 {
112 HDF_LOGI("Hdf audio manager driver release.");
113 if (deviceObject == nullptr || deviceObject->service == nullptr) {
114 HDF_LOGE("%{public}s: deviceObject or service is nullptr", __func__);
115 return;
116 }
117 std::unique_lock lock(mutex_);
118 auto *hdfAudioManagerHost = CONTAINER_OF(deviceObject->service, struct HdfAudioManagerHost, ioService);
119 if (hdfAudioManagerHost != nullptr) {
120 hdfAudioManagerHost->stub = nullptr;
121 }
122 delete hdfAudioManagerHost;
123 hdfAudioManagerHost = nullptr;
124 if (deviceObject != nullptr) {
125 deviceObject->service = nullptr;
126 }
127 }
128
129 struct HdfDriverEntry g_audiomanagerDriverEntry = {
130 .moduleVersion = 1,
131 .moduleName = "daudio",
132 .Bind = HdfAudioManagerDriverBind,
133 .Init = HdfAudioManagerDriverInit,
134 .Release = HdfAudioManagerDriverRelease,
135 };
136
137 #ifndef __cplusplus
138 extern "C" {
139 #endif
140 HDF_INIT(g_audiomanagerDriverEntry);
141 #ifndef __cplusplus
142 }
143 #endif
144