1 /*
2 * Copyright (c) 2024 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 <dirent.h>
17 #include <sys/stat.h>
18 #include <sys/types.h>
19 #include <dlfcn.h>
20 #include "wifi_vendor_hal_list.h"
21 #include "wifi_vendor_hal_stubs.h"
22
23 namespace OHOS {
24 namespace HDI {
25 namespace Wlan {
26 namespace Chip {
27 namespace V1_0 {
28
29 const std::string VENDOR_HAL_PATH = "libwifi_hal_hw.z.so";
30
WifiVendorHalList(const std::weak_ptr<IfaceTool> ifaceTool)31 WifiVendorHalList::WifiVendorHalList(
32 const std::weak_ptr<IfaceTool> ifaceTool)
33 : ifaceTool_(ifaceTool) {}
34
GetHals()35 std::vector<std::shared_ptr<WifiVendorHal>> WifiVendorHalList::GetHals()
36 {
37 if (vendorHals_.empty()) {
38 InitVendorHalsDescriptorList();
39 for (auto& desc : descs_) {
40 std::shared_ptr<WifiVendorHal> hal =
41 std::make_shared<WifiVendorHal>(ifaceTool_, desc.fn,
42 desc.primary);
43 vendorHals_.push_back(hal);
44 }
45 }
46 return vendorHals_;
47 }
48
InitVendorHalsDescriptorList()49 void WifiVendorHalList::InitVendorHalsDescriptorList()
50 {
51 WifiHalLibDesc desc;
52 std::string path = VENDOR_HAL_PATH;
53 desc.primary = true;
54 if (LoadVendorHalLib(path, desc)) {
55 if (desc.primary) {
56 descs_.insert(descs_.begin(), desc);
57 } else {
58 descs_.push_back(desc);
59 }
60 }
61 }
62
LoadVendorHalLib(const std::string & path,WifiHalLibDesc & desc)63 bool WifiVendorHalList::LoadVendorHalLib(const std::string& path, WifiHalLibDesc &desc)
64 {
65 void* h = dlopen(path.c_str(), RTLD_NOW | RTLD_LOCAL);
66 InitWifiVendorHalFuncTableT initfn;
67 WifiError res;
68 if (!h) {
69 HDF_LOGE("failed to open vendor hal library: %{public}s", path.c_str());
70 return false;
71 }
72 initfn = reinterpret_cast<InitWifiVendorHalFuncTableT>(dlsym(
73 h, "InitWifiVendorHalFuncTable"));
74 if (!initfn) {
75 HDF_LOGE("InitWifiVendorHalFuncTable not found in: %{public}s", path.c_str());
76 goto out_err;
77 }
78 if (!InitHalFuncTableWithStubs(&desc.fn)) {
79 HDF_LOGE("Can not initialize the basic function pointer table");
80 goto out_err;
81 }
82 res = initfn(&desc.fn);
83 if (res != HAL_SUCCESS) {
84 HDF_LOGE("failed to initialize the vendor func table in: %{public}s, error: %{public}d",
85 path.c_str(), res);
86 goto out_err;
87 }
88 res = desc.fn.vendorHalPreInit();
89 if (res != HAL_SUCCESS && res != HAL_NOT_SUPPORTED) {
90 HDF_LOGE("early initialization failed in: %{public}s, error: %{public}d", path.c_str(), res);
91 goto out_err;
92 }
93 desc.handle = h;
94 return true;
95 out_err:
96 dlclose(h);
97 return false;
98 }
99
100 } // namespace v1_0
101 } // namespace Chip
102 } // namespace Wlan
103 } // namespace HDI
104 } // namespace OHOS