1 /*
2 * Copyright (c) 2023 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_1/metadata_stub.h"
21
22 #undef LOG_TAG
23 #define LOG_TAG "METADATA_DRV"
24 #undef LOG_DOMAIN
25 #define LOG_DOMAIN 0xD002515
26
27 using namespace OHOS::HDI::Display::Buffer::V1_1;
28
29 struct HdfMetadataHost {
30 struct IDeviceIoService ioService;
31 OHOS::sptr<OHOS::IRemoteObject> stub;
32 };
33
MetadataDriverDispatch(struct HdfDeviceIoClient * client,int cmdId,struct HdfSBuf * data,struct HdfSBuf * reply)34 static int32_t MetadataDriverDispatch(struct HdfDeviceIoClient *client, int cmdId, struct HdfSBuf *data,
35 struct HdfSBuf *reply)
36 {
37 auto *hdfMetadataHost = CONTAINER_OF(client->device->service, struct HdfMetadataHost, ioService);
38
39 OHOS::MessageParcel *dataParcel = nullptr;
40 OHOS::MessageParcel *replyParcel = nullptr;
41 OHOS::MessageOption option;
42
43 if (SbufToParcel(data, &dataParcel) != HDF_SUCCESS) {
44 HDF_LOGE("%{public}s: invalid data sbuf object to dispatch", __func__);
45 return HDF_ERR_INVALID_PARAM;
46 }
47 if (SbufToParcel(reply, &replyParcel) != HDF_SUCCESS) {
48 HDF_LOGE("%{public}s: invalid reply sbuf object to dispatch", __func__);
49 return HDF_ERR_INVALID_PARAM;
50 }
51
52 return hdfMetadataHost->stub->SendRequest(cmdId, *dataParcel, *replyParcel, option);
53 }
54
HdfMetadataDriverInit(struct HdfDeviceObject * deviceObject)55 static int HdfMetadataDriverInit(struct HdfDeviceObject *deviceObject)
56 {
57 HDF_LOGI("%{public}s: driver init start", __func__);
58 return HDF_SUCCESS;
59 }
60
HdfMetadataDriverBind(struct HdfDeviceObject * deviceObject)61 static int HdfMetadataDriverBind(struct HdfDeviceObject *deviceObject)
62 {
63 HDF_LOGI("%{public}s: driver bind start", __func__);
64 auto *hdfMetadataHost = new (std::nothrow) HdfMetadataHost;
65 if (hdfMetadataHost == nullptr) {
66 HDF_LOGE("%{public}s: failed to create create HdfMetadataHost object", __func__);
67 return HDF_FAILURE;
68 }
69
70 hdfMetadataHost->ioService.Dispatch = MetadataDriverDispatch;
71 hdfMetadataHost->ioService.Open = NULL;
72 hdfMetadataHost->ioService.Release = NULL;
73
74 auto serviceImpl = OHOS::HDI::Display::Buffer::V1_1::IMetadata::Get(true);
75 if (serviceImpl == nullptr) {
76 HDF_LOGE("%{public}s: failed to get of implement service", __func__);
77 delete hdfMetadataHost;
78 return HDF_FAILURE;
79 }
80
81 hdfMetadataHost->stub = OHOS::HDI::ObjectCollector::GetInstance().GetOrNewObject(serviceImpl,
82 OHOS::HDI::Display::Buffer::V1_1::IMetadata::GetDescriptor());
83 if (hdfMetadataHost->stub == nullptr) {
84 HDF_LOGE("%{public}s: failed to get stub object", __func__);
85 delete hdfMetadataHost;
86 return HDF_FAILURE;
87 }
88
89 deviceObject->service = &hdfMetadataHost->ioService;
90 return HDF_SUCCESS;
91 }
92
HdfMetadataDriverRelease(struct HdfDeviceObject * deviceObject)93 static void HdfMetadataDriverRelease(struct HdfDeviceObject *deviceObject)
94 {
95 HDF_LOGI("%{public}s: driver release start", __func__);
96 if (deviceObject->service == nullptr) {
97 return;
98 }
99
100 auto *hdfMetadataHost = CONTAINER_OF(deviceObject->service, struct HdfMetadataHost, ioService);
101 if (hdfMetadataHost != nullptr) {
102 delete hdfMetadataHost;
103 }
104 }
105
106 static struct HdfDriverEntry g_metadataDriverEntry = {
107 .moduleVersion = 1,
108 .moduleName = "display_buffer",
109 .Bind = HdfMetadataDriverBind,
110 .Init = HdfMetadataDriverInit,
111 .Release = HdfMetadataDriverRelease,
112 };
113
114 #ifdef __cplusplus
115 extern "C" {
116 #endif /* __cplusplus */
117 HDF_INIT(g_metadataDriverEntry);
118 #ifdef __cplusplus
119 }
120 #endif /* __cplusplus */
121