1 /*
2  * Copyright (c) 2021 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 "allocator_service_stub.h"
17 #include "hdf_base.h"
18 #include "hdf_device_desc.h"
19 #include "hdf_log.h"
20 #include "osal_mem.h"
21 
22 using HdfAllocatorService = struct HdfAllocatorService_ {
23     struct IDeviceIoService ioservice;
24     void *instance;
25 };
26 
27 static int32_t AllocatorServiceDispatch(struct HdfDeviceIoClient *client, int cmdId,
28     struct HdfSBuf *data, struct HdfSBuf *reply)
29 {
30     HdfAllocatorService *allocatorService = CONTAINER_OF(
31         client->device->service, HdfAllocatorService, ioservice);
32     return AllocatorServiceOnRemoteRequest(allocatorService->instance, cmdId, *data, *reply);
33 }
34 
35 int HdfAllocatorDriverInit(struct HdfDeviceObject *deviceObject)
36 {
37     (void)deviceObject;
38     return HDF_SUCCESS;
39 }
40 
41 int HdfAllocatorDriverBind(struct HdfDeviceObject *deviceObject)
42 {
43     HdfAllocatorService *allocatorService =
44         reinterpret_cast<HdfAllocatorService *>(OsalMemAlloc(sizeof(HdfAllocatorService)));
45     if (allocatorService == nullptr) {
46         HDF_LOGE("%{public}s: OsalMemAlloc failed", __func__);
47         return HDF_FAILURE;
48     }
49 
50     allocatorService->ioservice.Dispatch = AllocatorServiceDispatch;
51     allocatorService->ioservice.Open = NULL;
52     allocatorService->ioservice.Release = NULL;
53     allocatorService->instance = AllocatorServiceInstance();
54 
55     deviceObject->service = &allocatorService->ioservice;
56     HDF_LOGI("%{public}s: exit succ", __func__);
57     return HDF_SUCCESS;
58 }
59 
60 void HdfAllocatorDriverRelease(struct HdfDeviceObject *deviceObject)
61 {
62     HdfAllocatorService *allocatorService = CONTAINER_OF(deviceObject->service, HdfAllocatorService, ioservice);
63     AllocatorServiceRelease(allocatorService->instance);
64     OsalMemFree(allocatorService);
65 }
66 
67 struct HdfDriverEntry g_AllocatorDriverEntry = {
68     .moduleVersion = 1,
69     .moduleName = "allocator_service",
70     .Bind = HdfAllocatorDriverBind,
71     .Init = HdfAllocatorDriverInit,
72     .Release = HdfAllocatorDriverRelease,
73 };
74 
75 #ifdef __cplusplus
76 extern "C" {
77 #endif /* __cplusplus */
78 
79 HDF_INIT(g_AllocatorDriverEntry);
80 
81 #ifdef __cplusplus
82 }
83 #endif /* __cplusplus */
84