1 /*
2 * Copyright (c) 2021-2022 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_log.h>
18 #include <iproxy_broker.h>
19 #include <iservice_registry.h>
20 #include <object_collector.h>
21
22 #include "idevmgr_hdi.h"
23 #include "iservmgr_hdi.h"
24
25 #define HDF_LOG_TAG idevmgr_client
26
27 namespace OHOS {
28 namespace HDI {
29 namespace DeviceManager {
30 namespace V1_0 {
31 enum DevmgrCmdId : uint32_t {
32 DEVMGR_SERVICE_ATTACH_DEVICE_HOST = 1,
33 DEVMGR_SERVICE_ATTACH_DEVICE,
34 DEVMGR_SERVICE_DETACH_DEVICE,
35 DEVMGR_SERVICE_LOAD_DEVICE,
36 DEVMGR_SERVICE_UNLOAD_DEVICE,
37 DEVMGR_SERVICE_QUERY_DEVICE,
38 DEVMGR_SERVICE_LIST_ALL_DEVICE,
39 };
40
41 class DeviceManagerProxy : public IProxyBroker<IDeviceManager> {
42 public:
DeviceManagerProxy(const sptr<IRemoteObject> & impl)43 explicit DeviceManagerProxy(const sptr<IRemoteObject> &impl) : IProxyBroker<IDeviceManager>(impl) {}
~DeviceManagerProxy()44 ~DeviceManagerProxy() {}
45 int32_t LoadDevice(const std::string &serviceName) override;
46 int32_t UnloadDevice(const std::string &serviceName) override;
47 int32_t ListAllDevice(std::vector<HdiDevHostInfo> &deviceInfos) override;
48
49 private:
50 static inline BrokerDelegator<DeviceManagerProxy> delegator_;
51 };
52
LoadDevice(const std::string & serviceName)53 int32_t DeviceManagerProxy::LoadDevice(const std::string &serviceName)
54 {
55 MessageParcel data;
56 MessageParcel reply;
57 MessageOption option;
58 HDF_LOGI("load device: %{public}s", serviceName.data());
59 if (!data.WriteInterfaceToken(GetDescriptor())) {
60 return HDF_FAILURE;
61 }
62 if (!data.WriteCString(serviceName.data())) {
63 return HDF_FAILURE;
64 }
65
66 int status = Remote()->SendRequest(DEVMGR_SERVICE_LOAD_DEVICE, data, reply, option);
67 if (status != HDF_SUCCESS) {
68 HDF_LOGE("load device failed, %{public}d", status);
69 }
70 return status;
71 }
72
UnloadDevice(const std::string & serviceName)73 int32_t DeviceManagerProxy::UnloadDevice(const std::string &serviceName)
74 {
75 MessageParcel data;
76 MessageParcel reply;
77 MessageOption option;
78 HDF_LOGI("unload device: %{public}s", serviceName.data());
79 if (!data.WriteInterfaceToken(DeviceManagerProxy::GetDescriptor())) {
80 return HDF_FAILURE;
81 }
82 if (!data.WriteCString(serviceName.data())) {
83 return HDF_FAILURE;
84 }
85
86 int status = Remote()->SendRequest(DEVMGR_SERVICE_UNLOAD_DEVICE, data, reply, option);
87 if (status != HDF_SUCCESS) {
88 HDF_LOGE("unload device failed, %{public}d", status);
89 }
90 return status;
91 }
92
HdfDevMgrDbgFillDeviceInfo(std::vector<HdiDevHostInfo> & hostInfos,MessageParcel & reply)93 static void HdfDevMgrDbgFillDeviceInfo(std::vector<HdiDevHostInfo> &hostInfos, MessageParcel &reply)
94 {
95 while (true) {
96 struct DevInfo devInfo;
97 uint32_t devCnt;
98 struct HdiDevHostInfo hostInfo;
99 const char *name = reply.ReadCString();
100 if (name == nullptr) {
101 break;
102 }
103 hostInfo.hostName = name;
104 hostInfo.hostId = reply.ReadUint32();
105 devCnt = reply.ReadUint32();
106 for (uint32_t i = 0; i < devCnt; i++) {
107 name = reply.ReadCString();
108 devInfo.deviceName = (name == nullptr) ? "" : name;
109 devInfo.devId = reply.ReadUint32();
110 name = reply.ReadCString();
111 devInfo.servName = (name == nullptr) ? "" : name;
112 hostInfo.devInfo.push_back(devInfo);
113 }
114 hostInfos.push_back(hostInfo);
115 }
116 return;
117 }
118
ListAllDevice(std::vector<HdiDevHostInfo> & deviceInfos)119 int32_t DeviceManagerProxy::ListAllDevice(std::vector<HdiDevHostInfo> &deviceInfos)
120 {
121 MessageParcel data;
122 MessageParcel reply;
123
124 if (!data.WriteInterfaceToken(GetDescriptor())) {
125 return HDF_FAILURE;
126 }
127
128 MessageOption option;
129 int status = Remote()->SendRequest(DEVMGR_SERVICE_LIST_ALL_DEVICE, data, reply, option);
130 if (status != HDF_SUCCESS) {
131 HDF_LOGE("list all device info failed, %{public}d", status);
132 } else {
133 HdfDevMgrDbgFillDeviceInfo(deviceInfos, reply);
134 }
135 return status;
136 }
137
Get()138 sptr<IDeviceManager> IDeviceManager::Get()
139 {
140 auto servmgr = ServiceManager::V1_0::IServiceManager::Get();
141 if (servmgr == nullptr) {
142 HDF_LOGE("failed to get hdi service manager");
143 return nullptr;
144 }
145 sptr<IRemoteObject> remote = servmgr->GetService("hdf_device_manager");
146 if (remote != nullptr) {
147 return hdi_facecast<IDeviceManager>(remote);
148 }
149
150 HDF_LOGE("hdf device manager not exist");
151 return nullptr;
152 }
153 } // namespace V1_0
154 } // namespace DeviceManager
155 } // namespace HDI
156 } // namespace OHOS