【HarmonyOS HiSpark IPC DIY Camera】hi3518-wifi配置与使用

ti

本帖最后由 l_xy 于 2020-11-19 16:24 编辑

主要是修改和3518相关的wpa_supplicant.conf hostapd.conf 两个文件，对wifi相关的ssid、passwd等进行配置

【编译生成wifi可执行文件】 请参考以下示例代码编译可执行程序wpa_supplicant：（SDK里面有这些代码，不做修改）
路径 ./applications/sample/camera/communication/wpa_supplicant/src/wpa_sample.c

#include
#include
#include
#include
pthread_t g_wpaThread;
char* g_wpaArg[20] = {0};
int g_wpaArgc = 0;
static void* ThreadMain()
{
printf("[WpaSample]init wpa_supplicant.n");
void *handleLibWpa = dlopen("/usr/lib/libwpa.so", RTLD_NOW | RTLD_LOCAL);
if (handleLibWpa == NULL) {
printf("[WpaSample]dlopen libwpa failed.n");
return NULL;
}
int (*func)(int, char **) = NULL;
func = dlsym(handleLibWpa, "wpa_main");
if (func == NULL) {
dlclose(handleLibWpa);
printf("[WpaSample]dlsym wpa_main failed.n");
return NULL;
}
int ret = func(g_wpaArgc, g_wpaArg);
printf("[WpaSample]run wpa_main failed, ret:%d.n", ret);
for (int i = 0; i < g_wpaArgc; i++) {
printf("[WpaSample]arg %d:%s.n", i, g_wpaArg);
}
if (dlclose(handleLibWpa) != 0) {
printf("[WpaSample]dlclose libwpa failed.n");
return NULL;
}
return NULL;
}
int main(int argc, char *argv[])
{
g_wpaArgc = argc;
for (int i = 0; i < g_wpaArgc; i++) {
g_wpaArg = argv;
}
int ret = pthread_create(&g_wpaThread, NULL, ThreadMain, NULL);
if (ret != 0) {
printf("[WpaSample]create thread failed error:%s.n", strerror(ret));
return 1;
}
pthread_join(g_wpaThread, NULL);
return 0;
}

复制代码

路径  ./applications/sample/camera/communication目录下面的BUILD.gn文件

import("//build/lite/config/component/lite_component.gni")

lite_component("sample") {

features = [

   "wpa_supplicant:wpa_sample",

]

}
复制代码

路径  ./applications/sample/camera/communication/wpa_supplicant目录下面的BUILD.gn文件

import("//build/lite/config/component/lite_component.gni")
sample_sources = [
"src/wpa_sample.c",
]
config_file = [
"config/wpa_supplicant.conf"
]
executable("wpa_sample_exe") {
output_name = "wpa_supplicant"
sources = sample_sources
}
group("wpa_sample") {
deps = [
":wpa_sample_exe",
]
}
copy("config") {
sources = config_file
outputs = [
"$root_out_dir/etc/wpa_supplicant.conf"
]
}

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路径 ./build/lite/product/ipcamera_hi3518ev300.json

【修改station模式的配置】将以下配置写到配置文件wpa_supplicant.conf

country=GB
ctrl_interface=udp
network={
#要连接的SSID
ssid="example"
#如果不需要加密就写key_mgmt=NONE
#key_mgmt=NONE
#如果需要加密就写这行密码
psk="12345678"
}

复制代码

【修改ap模式的配置】将以下配置写到配置文件hostapd.conf

interface=wlan0

driver=hdf wifi

ctrl_interface=udp

ssid=testap

hw_mode=g

channel=1

ignore_broadcast_ssid=0

#下面是wpa2-psk类型加密的配置

#如果不需要加密可以删除

auth_algs=1

wpa=2

wpa_passphrase=12345678

rsn_pairwise=CCMP
复制代码

【使用方法】
将wpa_supplicant、wpa_supplicant.conf、hostapd.conf拷贝到单板中
启动sta的命令：

./sdcard/wpa_supplicant -i wlan0 -c /sdcard/wpa_supplicant.conf
复制代码

启动ap的命令：

./sdcard/hostapd -i wlan0 /sdcard/hostapd.conf
复制代码

【WIFI设备检测】进入OHOS界面后，输入

ifconfig
复制代码

，检查wlan0网口是否加载正常，加载成功标识如下：
OHOS # ifconfig
wlan0 ip:0.0.0.0 netmask:0.0.0.0 gateway:0.0.0.0
      HWaddr 0a:11:31:aa:7e:1a MTU:1500 Stop Link UP
lo    ip:127.0.0.1 netmask:255.0.0.0 gateway:127.0.0.1
      ip6: ::1/64
      HWaddr 00 MTU:16436 Running Link UP

asllan · 2021-5-18 13:52:07

本帖最后由 asllan 于 2021-5-18 19:25 编辑

请问如何查看是否连上WiFi

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【HarmonyOS HiSpark IPC DIY Camera】hi3518-wifi配置与使用

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