1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this list of
8 * conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11 * of conditions and the following disclaimer in the documentation and/or other materials
12 * provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific prior written
16 * permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "hdf_device_desc.h"
32 #include "hdf_log.h"
33 #include "sample_service.h"
34
35 #define HDF_LOG_TAG sample_driver
36
SampleServiceGetData(void)37 static const char *SampleServiceGetData(void)
38 {
39 return "sample";
40 }
41
SampleServiceSetData(const char * data)42 static int32_t SampleServiceSetData(const char *data)
43 {
44 if (data == NULL) {
45 return HDF_ERR_INVALID_PARAM;
46 }
47 HDF_LOGD("%s:%s", __func__, data);
48 return HDF_SUCCESS;
49 }
50
HdfSampleDriverRelease(struct HdfDeviceObject * deviceObject)51 static void HdfSampleDriverRelease(struct HdfDeviceObject *deviceObject)
52 {
53 (void)deviceObject;
54 return;
55 }
56
HdfSampleDriverBind(struct HdfDeviceObject * deviceObject)57 static int HdfSampleDriverBind(struct HdfDeviceObject *deviceObject)
58 {
59 HDF_LOGD("%s::enter, deviceObject=%p", __func__, deviceObject);
60 if (deviceObject == NULL) {
61 return HDF_FAILURE;
62 }
63 static struct SampleService sampleService = {
64 .getData = SampleServiceGetData,
65 .setData = SampleServiceSetData,
66 };
67 deviceObject->service = &sampleService.service;
68 return HDF_SUCCESS;
69 }
70
HdfSampleDriverInit(struct HdfDeviceObject * deviceObject)71 static int HdfSampleDriverInit(struct HdfDeviceObject *deviceObject)
72 {
73 HDF_LOGD("%s::enter, deviceObject=%p", __func__, deviceObject);
74 if (deviceObject == NULL) {
75 HDF_LOGE("%s::ptr is null!", __func__);
76 return HDF_FAILURE;
77 }
78 HDF_LOGD("%s:Init success", __func__);
79 return HDF_SUCCESS;
80 }
81
82 struct HdfDriverEntry g_sampleDriverEntry = {
83 .moduleVersion = 1,
84 .moduleName = "sample_driver",
85 .Bind = HdfSampleDriverBind,
86 .Init = HdfSampleDriverInit,
87 .Release = HdfSampleDriverRelease,
88 };
89
90 HDF_INIT(g_sampleDriverEntry);
91