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_0/allocator_stub.h"
21
22 #undef LOG_TAG
23 #define LOG_TAG "ALLOC_DRV"
24 #undef LOG_DOMAIN
25 #define LOG_DOMAIN 0xD002515
26
27 using namespace OHOS::HDI::Display::Buffer::V1_0;
28
29 struct HdfAllocatorHost {
30 struct IDeviceIoService ioService;
31 OHOS::sptr<OHOS::IRemoteObject> stub;
32 };
33
AllocatorDriverDispatch(struct HdfDeviceIoClient * client,int cmdId,struct HdfSBuf * data,struct HdfSBuf * reply)34 static int32_t AllocatorDriverDispatch(
35 struct HdfDeviceIoClient* client, int cmdId, struct HdfSBuf* data, struct HdfSBuf* reply)
36 {
37 if ((client == nullptr) || (client->device == nullptr)) {
38 HDF_LOGE("%{public}s: param is nullptr", __func__);
39 return HDF_ERR_INVALID_PARAM;
40 }
41 auto* hdfAllocatorHost =
42 CONTAINER_OF(client->device->service, struct HdfAllocatorHost, ioService);
43
44 OHOS::MessageParcel* dataParcel = nullptr;
45 OHOS::MessageParcel* replyParcel = nullptr;
46 OHOS::MessageOption option;
47
48 if (SbufToParcel(data, &dataParcel) != HDF_SUCCESS) {
49 HDF_LOGE("%{public}s: invalid data sbuf object to dispatch", __func__);
50 return HDF_ERR_INVALID_PARAM;
51 }
52 if (SbufToParcel(reply, &replyParcel) != HDF_SUCCESS) {
53 HDF_LOGE("%{public}s: invalid reply sbuf object to dispatch", __func__);
54 return HDF_ERR_INVALID_PARAM;
55 }
56
57 return hdfAllocatorHost->stub->SendRequest(cmdId, *dataParcel, *replyParcel, option);
58 }
59
HdfAllocatorDriverInit(struct HdfDeviceObject * deviceObject)60 static int HdfAllocatorDriverInit(struct HdfDeviceObject* deviceObject)
61 {
62 HDF_LOGI("%{public}s: enter", __func__);
63 return HDF_SUCCESS;
64 }
65
HdfAllocatorDriverBind(struct HdfDeviceObject * deviceObject)66 static int HdfAllocatorDriverBind(struct HdfDeviceObject* deviceObject)
67 {
68 HDF_LOGI("%{public}s: enter", __func__);
69 auto* hdfAllocatorHost = new (std::nothrow) HdfAllocatorHost;
70 if (hdfAllocatorHost == nullptr) {
71 HDF_LOGE("%{public}s: failed to create HdfAllocatorHost object", __func__);
72 return HDF_FAILURE;
73 }
74
75 hdfAllocatorHost->ioService.Dispatch = AllocatorDriverDispatch;
76 hdfAllocatorHost->ioService.Open = NULL;
77
78 hdfAllocatorHost->ioService.Release = NULL;
79
80 auto serviceImpl = IAllocator::Get(true);
81 if (serviceImpl == nullptr) {
82 HDF_LOGE("%{public}s: failed to get the implement of service", __func__);
83 delete hdfAllocatorHost;
84 return HDF_FAILURE;
85 }
86
87 hdfAllocatorHost->stub =
88 OHOS::HDI::ObjectCollector::GetInstance().GetOrNewObject(serviceImpl, IAllocator::GetDescriptor());
89 if (hdfAllocatorHost->stub == nullptr) {
90 HDF_LOGE("%{public}s: failed to get stub object", __func__);
91 delete hdfAllocatorHost;
92 return HDF_FAILURE;
93 }
94
95 deviceObject->service = &hdfAllocatorHost->ioService;
96 return HDF_SUCCESS;
97 }
98
HdfAllocatorDriverRelease(struct HdfDeviceObject * deviceObject)99 static void HdfAllocatorDriverRelease(struct HdfDeviceObject* deviceObject)
100 {
101 HDF_LOGI("%{public}s: enter", __func__);
102 if (deviceObject->service == nullptr) {
103 HDF_LOGE("%{public}s: service is nullptr", __func__);
104 return;
105 }
106
107 auto* hdfAllocatorHost = CONTAINER_OF(deviceObject->service, struct HdfAllocatorHost, ioService);
108 delete hdfAllocatorHost;
109 }
110
111 static struct HdfDriverEntry g_allocatorDriverEntry = {
112 .moduleVersion = 1,
113 .moduleName = "display_buffer",
114 .Bind = HdfAllocatorDriverBind,
115 .Init = HdfAllocatorDriverInit,
116 .Release = HdfAllocatorDriverRelease,
117 };
118
119 #ifdef __cplusplus
120 extern "C" {
121 #endif
122 HDF_INIT(g_allocatorDriverEntry);
123 #ifdef __cplusplus
124 }
125 #endif
126