1 /*
2 * Copyright (c) 2025 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 "usbd_wrapper.h"
21 #include "v1_0/usb_serial_ddk_stub.h"
22
23 #define HDF_LOG_TAG usb_serial_ddk_driver
24
25 using namespace OHOS::HDI::Usb::UsbSerialDdk::V1_0;
26
27 struct HdfUsbSerialDdkHost {
28 struct IDeviceIoService ioService;
29 OHOS::sptr<OHOS::IRemoteObject> stub;
30 };
31
UsbSerialDdkDriverDispatch(struct HdfDeviceIoClient * client,int cmdId,struct HdfSBuf * data,struct HdfSBuf * reply)32 static int32_t UsbSerialDdkDriverDispatch(
33 struct HdfDeviceIoClient *client, int cmdId, struct HdfSBuf *data, struct HdfSBuf *reply)
34 {
35 auto *hdfUsbSerialDdkHost = CONTAINER_OF(client->device->service, struct HdfUsbSerialDdkHost, ioService);
36 if (hdfUsbSerialDdkHost == nullptr) {
37 HDF_LOGE("%{public}s: hdfUsbSerialDdkHost = nullptr", __func__);
38 return HDF_FAILURE;
39 }
40
41 OHOS::MessageParcel *dataParcel = nullptr;
42 OHOS::MessageParcel *replyParcel = nullptr;
43 OHOS::MessageOption option;
44
45 if (SbufToParcel(data, &dataParcel) != HDF_SUCCESS) {
46 HDF_LOGE("%{public}s: invalid data sbuf object to dispatch", __func__);
47 return HDF_ERR_INVALID_PARAM;
48 }
49 if (SbufToParcel(reply, &replyParcel) != HDF_SUCCESS) {
50 HDF_LOGE("%{public}s: invalid reply sbuf object to dispatch", __func__);
51 return HDF_ERR_INVALID_PARAM;
52 }
53
54 return hdfUsbSerialDdkHost->stub->SendRequest(cmdId, *dataParcel, *replyParcel, option);
55 }
56
HdfUsbSerialDdkDriverInit(struct HdfDeviceObject * deviceObject)57 static int HdfUsbSerialDdkDriverInit(struct HdfDeviceObject *deviceObject)
58 {
59 HDF_LOGI("%{public}s: driver init start", __func__);
60 return HDF_SUCCESS;
61 }
62
HdfUsbSerialDdkDriverBind(struct HdfDeviceObject * deviceObject)63 static int HdfUsbSerialDdkDriverBind(struct HdfDeviceObject *deviceObject)
64 {
65 HDF_LOGI("%{public}s: driver bind start", __func__);
66 auto *hdfUsbSerialDdkHost = new (std::nothrow) HdfUsbSerialDdkHost;
67 if (hdfUsbSerialDdkHost == nullptr) {
68 HDF_LOGE("%{public}s: failed to create create hdfUsbSerialDdkHost object", __func__);
69 return HDF_FAILURE;
70 }
71
72 hdfUsbSerialDdkHost->ioService.Dispatch = UsbSerialDdkDriverDispatch;
73 hdfUsbSerialDdkHost->ioService.Open = nullptr;
74 hdfUsbSerialDdkHost->ioService.Release = nullptr;
75
76 auto serviceImpl = OHOS::HDI::Usb::UsbSerialDdk::V1_0::IUsbSerialDdk::Get(true);
77 if (serviceImpl == nullptr) {
78 HDF_LOGE("%{public}s: failed to get of implement service", __func__);
79 delete hdfUsbSerialDdkHost;
80 return HDF_FAILURE;
81 }
82
83 hdfUsbSerialDdkHost->stub = OHOS::HDI::ObjectCollector::GetInstance().GetOrNewObject(
84 serviceImpl, OHOS::HDI::Usb::UsbSerialDdk::V1_0::IUsbSerialDdk::GetDescriptor());
85 if (hdfUsbSerialDdkHost->stub == nullptr) {
86 HDF_LOGE("%{public}s: failed to get stub object", __func__);
87 delete hdfUsbSerialDdkHost;
88 return HDF_FAILURE;
89 }
90
91 deviceObject->service = &hdfUsbSerialDdkHost->ioService;
92 return HDF_SUCCESS;
93 }
94
HdfUsbSerialDdkDriverRelease(struct HdfDeviceObject * deviceObject)95 static void HdfUsbSerialDdkDriverRelease(struct HdfDeviceObject *deviceObject)
96 {
97 HDF_LOGI("%{public}s: driver release start", __func__);
98 if (deviceObject->service == nullptr) {
99 return;
100 }
101
102 auto *hdfUsbSerialDdkHost = CONTAINER_OF(deviceObject->service, struct HdfUsbSerialDdkHost, ioService);
103 if (hdfUsbSerialDdkHost != nullptr) {
104 delete hdfUsbSerialDdkHost;
105 }
106 }
107
108 static struct HdfDriverEntry g_usbSeruakddkDriverEntry = {
109 .moduleVersion = 1,
110 .moduleName = "",
111 .Bind = HdfUsbSerialDdkDriverBind,
112 .Init = HdfUsbSerialDdkDriverInit,
113 .Release = HdfUsbSerialDdkDriverRelease,
114 };
115 #ifdef __cplusplus
116 extern "C" {
117 #endif /* __cplusplus */
118 HDF_INIT(g_usbSeruakddkDriverEntry);
119 #ifdef __cplusplus
120 }
121 #endif /* __cplusplus */
122