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 <v2_0/daudio_manager_stub.h>
21
22 #include <shared_mutex>
23 using namespace OHOS::HDI::DistributedAudio::Audioext::V2_0;
24
25 namespace {
26 std::shared_mutex mutex_;
27 }
28
29 struct HdfDAudioManagerHost {
30 struct IDeviceIoService ioService;
31 OHOS::sptr<OHOS::IRemoteObject> stub;
32 };
33
DAudioManagerDriverDispatch(struct HdfDeviceIoClient * client,int cmdId,struct HdfSBuf * data,struct HdfSBuf * reply)34 static int32_t DAudioManagerDriverDispatch(struct HdfDeviceIoClient *client, int cmdId, struct HdfSBuf *data,
35 struct HdfSBuf *reply)
36 {
37 OHOS::MessageParcel *dataParcel = nullptr;
38 OHOS::MessageParcel *replyParcel = nullptr;
39 OHOS::MessageOption option;
40
41 if (SbufToParcel(data, &dataParcel) != HDF_SUCCESS) {
42 HDF_LOGE("%{public}s:invalid data sbuf object to dispatch", __func__);
43 return HDF_ERR_INVALID_PARAM;
44 }
45 if (SbufToParcel(reply, &replyParcel) != HDF_SUCCESS) {
46 HDF_LOGE("%{public}s:invalid reply sbuf object to dispatch", __func__);
47 return HDF_ERR_INVALID_PARAM;
48 }
49
50 std::shared_lock lock(mutex_);
51 if (client == nullptr || client->device == nullptr || client->device->service == nullptr) {
52 HDF_LOGE("%{public}s: client or client.device or service is nullptr", __func__);
53 return HDF_FAILURE;
54 }
55 auto *hdfDAudioManagerHost = CONTAINER_OF(client->device->service, struct HdfDAudioManagerHost, ioService);
56 if (hdfDAudioManagerHost == NULL || hdfDAudioManagerHost->stub == NULL) {
57 HDF_LOGE("%{public}s:invalid hdfAudioManagerHost", __func__);
58 return HDF_ERR_INVALID_PARAM;
59 }
60 return hdfDAudioManagerHost->stub->SendRequest(cmdId, *dataParcel, *replyParcel, option);
61 }
62
HdfDAudioManagerDriverInit(struct HdfDeviceObject * deviceObject)63 int HdfDAudioManagerDriverInit(struct HdfDeviceObject *deviceObject)
64 {
65 HDF_LOGI("Hdf daudio manager driver init.");
66 HdfDeviceSetClass(deviceObject, DEVICE_CLASS_AUDIO);
67 return HDF_SUCCESS;
68 }
69
HdfDAudioManagerDriverBind(struct HdfDeviceObject * deviceObject)70 int HdfDAudioManagerDriverBind(struct HdfDeviceObject *deviceObject)
71 {
72 HDF_LOGI("Hdf daudio manager driver bind.");
73 if (deviceObject == nullptr) {
74 HDF_LOGE("%{public}s: deviceObject is nullptr", __func__);
75 return HDF_FAILURE;
76 }
77
78 auto *hdfDAudioManagerHost = new (std::nothrow) HdfDAudioManagerHost;
79 if (hdfDAudioManagerHost == nullptr) {
80 HDF_LOGE("%{public}s: failed to create create HdfDAudioManagerHost object", __func__);
81 return HDF_FAILURE;
82 }
83
84 hdfDAudioManagerHost->ioService.Dispatch = DAudioManagerDriverDispatch;
85 hdfDAudioManagerHost->ioService.Open = NULL;
86 hdfDAudioManagerHost->ioService.Release = NULL;
87
88 auto serviceImpl = IDAudioManager::Get("daudio_ext_service", true);
89 if (serviceImpl == nullptr) {
90 HDF_LOGE("%{public}s: failed to get of implement service", __func__);
91 delete hdfDAudioManagerHost;
92 return HDF_FAILURE;
93 }
94
95 hdfDAudioManagerHost->stub = OHOS::HDI::ObjectCollector::GetInstance().GetOrNewObject(serviceImpl,
96 IDAudioManager::GetDescriptor());
97 if (hdfDAudioManagerHost->stub == nullptr) {
98 HDF_LOGE("%{public}s: failed to get stub object", __func__);
99 delete hdfDAudioManagerHost;
100 return HDF_FAILURE;
101 }
102
103 deviceObject->service = &hdfDAudioManagerHost->ioService;
104 return HDF_SUCCESS;
105 }
106
HdfDAudioManagerDriverRelease(struct HdfDeviceObject * deviceObject)107 void HdfDAudioManagerDriverRelease(struct HdfDeviceObject *deviceObject)
108 {
109 HDF_LOGI("Hdf daudio manager driver release.");
110 if (deviceObject == nullptr || deviceObject->service == nullptr) {
111 HDF_LOGE("HdfDAudioManagerDriverRelease not initted");
112 return;
113 }
114
115 std::unique_lock lock(mutex_);
116 auto *hdfDAudioManagerHost = CONTAINER_OF(deviceObject->service, struct HdfDAudioManagerHost, ioService);
117 if (hdfDAudioManagerHost != nullptr) {
118 hdfDAudioManagerHost->stub = nullptr;
119 }
120 delete hdfDAudioManagerHost;
121 hdfDAudioManagerHost = nullptr;
122 if (deviceObject != nullptr) {
123 deviceObject->service = nullptr;
124 }
125 }
126
127 struct HdfDriverEntry g_daudiomanagerDriverEntry = {
128 .moduleVersion = 1,
129 .moduleName = "daudioext",
130 .Bind = HdfDAudioManagerDriverBind,
131 .Init = HdfDAudioManagerDriverInit,
132 .Release = HdfDAudioManagerDriverRelease,
133 };
134
135 #ifndef __cplusplus
136 extern "C" {
137 #endif
138 HDF_INIT(g_daudiomanagerDriverEntry);
139 #ifndef __cplusplus
140 }
141 #endif
142