Bearpi开发板HarmonyOS之WiFi STA联网

wifi_device.h接口简介

• 启用Wifi STA 模式
  WifiErrorCode EnableWifi(void);

• 禁用Wifi STA 模式
  WifiErrorCode DisableWifi(void);

• 检查Wifi STA模式是否启用
  int IsWifiActive(void);

• 扫描热点信息
  WifiErrorCode Scan(void);

• 获取所有扫描到的热点列表
  WifiErrorCode GetScanInfoList(WifiScanInfo* result, unsigned int* size);

• 配置连接到热点信息
  WifiErrorCode AddDeviceConfig(const WifiDeviceConfig* config, int* result);

• 获取配置连接到热点信息
  WifiErrorCode GetDeviceConfigs(WifiDeviceConfig* result, unsigned int* size);

• 删除指定的热点配置信息
  WifiErrorCode RemoveDevice(int networkId);

• 接到指定的热点
  WifiErrorCode ConnectTo(int networkId);

• 断开Wifi连接
  WifiErrorCode Disconnect(void);

• 获取热点连接信息
  WifiErrorCode GetLinkedInfo(WifiLinkedInfo* result);

• 获取设备的MAC地址
  WifiErrorCode GetDeviceMacAddress(unsigned char* result);

连接到指定wifi代码

#include 
#include 
#include "ohos_init.h"
#include 
#include "cmsis_os2.h"
#include "wifiiot_gpio.h"
#include "wifiiot_gpio_ex.h"
#include "wifiiot_adc.h"
#include "wifiiot_errno.h"
#include "wifiiot_uart.h"
#include "lwip/netifapi.h"
#include "wifi_hotspot.h"
#include "wifi_device.h"
#include "wifi_error_code.h"

#include "lwip/netif.h"
#include "lwip/ip4_addr.h"
#include "lwip/api_shell.h"


#define DEF_TIMEOUT 15
#define ONE_SECOND 1

static void WiFiInit(void);
static void WaitSacnResult(void);
static int WaitConnectResult(void);
static void OnWifiScanStateChangedHandler(int state, int size);
static void OnWifiConnectionChangedHandler(int state, WifiLinkedInfo *info);
static void OnHotspotStaJoinHandler(StationInfo *info);
static void OnHotspotStateChangedHandler(int state);
static void OnHotspotStaLeaveHandler(StationInfo *info);

static int g_staScanSuccess = 0;
static int g_ConnectSuccess = 0;
static int ssid_count = 0;
WifiEvent g_wifiEventHandler = {0};
WifiErrorCode error;

#define SELECT_WLAN_PORT "wlan0"

#define SELECT_WIFI_SSID "JamesZhou"
#define SELECT_WIFI_PASSWORD "12345678"
#define SELECT_WIFI_SECURITYTYPE WIFI_SEC_TYPE_PSK


static void WiFiInit(void)
{
  g_wifiEventHandler.OnHotspotStaLeave = OnHotspotStaLeaveHandler;
  g_wifiEventHandler.OnHotspotStateChanged = OnHotspotStateChangedHandler;
  g_wifiEventHandler.OnHotspotStaJoin = OnHotspotStaJoinHandler;
  g_wifiEventHandler.OnWifiConnectionChanged = OnWifiConnectionChangedHandler;
  g_wifiEventHandler.OnWifiScanStateChanged = OnWifiScanStateChangedHandler;

  error = RegisterWifiEvent(&g_wifiEventHandler);

    if (error != WIFI_SUCCESS)
    {
        printf("register wifi event fail!\r\n");
    }
    else
    {
        printf("register wifi event succeed!\r\n");
    }

}


static void OnWifiScanStateChangedHandler(int state, int size)
{
  (void)state;
  if(size > 0)
  {
    ssid_count = size;
    g_staScanSuccess = 1;
  }
}

static void OnWifiConnectionChangedHandler(int state, WifiLinkedInfo *info)
{
    (void)info;
    if(state > 0)
    {
       g_ConnectSuccess = 1;
       printf("callback function for wifi connect\r\n");
    }
    else
    {
        printf("connect error,please check password\r\n");
    }

}
static void OnHotspotStateChangedHandler(int state)
{
    printf("HotspotStateChanged:state is %d.\n", state);
   
}

static void OnHotspotStaJoinHandler(StationInfo *info)
{
    (void)info;
    printf("STA join AP\n");
}

static void OnHotspotStaLeaveHandler(StationInfo *info)
{
    (void)info;
    printf("HotspotStaLeave:info is null.\n");

}


static void WaitSacnResult(void)
{

   int scanTimeout = DEF_TIMEOUT;
   while(scanTimeout)
   {
        sleep(ONE_SECOND);
        scanTimeout--;
        if (g_staScanSuccess == 1)
        {
            printf("WaitSacnResult:wait success[%d]s\n", (DEF_TIMEOUT - scanTimeout));
            break;
        }
   }
  if (scanTimeout  0)
    {
        sleep(1);
        ConnectTimeout--;
        if (g_ConnectSuccess == 1)
        {
            printf("WaitConnectResult:wait success[%d]s\n", (DEF_TIMEOUT - ConnectTimeout));
            break;
        }
    }
    if (ConnectTimeout