基于Hi3861平台的OpenHarmony设备配网示例，超详细，设备配网全过程

/* * Copyright (c) 2020 Nanjing Xiaoxiongpai Intelligent Technology Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <stdio.h> #include <string.h> #include <unistd.h> #include "lwip/netif.h" #include "lwip/netifapi.h" #include "lwip/ip4_addr.h" #include "lwip/api_shell.h" #include "cmsis_os2.h" #include "hos_types.h" #include "wifi_device.h" #include "wifiiot_errno.h" #include "ohos_init.h" #include "wifi_connect.h" #define DEF_TIMEOUT 15 #define ONE_SECOND 1 #define SELECT_WIFI_SECURITYTYPE WIFI_SEC_TYPE_PSK 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); // findMyTargetSSID == 1，SSID匹配成功 static int findMyTargetSSID = 0; // 递归查询匹配SSID次数，超过10次，终止 static int repeatFindMyTargetSSIDCount = 0; // g_staScanSuccess == 1，扫描成功 static int g_staScanSuccess = 0; // g_ConnectSuccess == 1，连接成功 static int g_ConnectSuccess = 0; // ssid 数量 static int ssid_count = 0; WifiEvent g_wifiEventHandler = {0}; WifiErrorCode error; #define SELECT_WLAN_PORT "wlan0" int WifiConnect(wifi_profile_connect_t *wifi_profile) { // 进来直接先拷贝要连接的热点信息，下面只需要保证扫描到无线网络就行了 WifiDeviceConfig select_ap_config = {0}; strcpy(select_ap_config.ssid, wifi_profile->wifi_ssid); strcpy(select_ap_config.preSharedKey, wifi_profile->wifi_passwd); select_ap_config.securityType = SELECT_WIFI_SECURITYTYPE; WifiScanInfo *info = NULL; static struct netif *g_lwip_netif = NULL; unsigned int size = WIFI_SCAN_HOTSPOT_LIMIT; osDelay(200); printf("<--System Init-->\r\n"); // 初始化WIFI WiFiInit(); // 使能WIFI if (EnableWifi() != WIFI_SUCCESS) { printf("EnableWifi failed, error = %d\r\n", error); return -1; } // 判断WIFI是否激活 if (IsWifiActive() == 0) { printf("Wifi station is not actived.\r\n"); return -1; } // 分配空间，保存WiFi信息 info = malloc(sizeof(WifiScanInfo) * WIFI_SCAN_HOTSPOT_LIMIT); if (info == NULL) { return -1; } // do{ // //重置标志位 // ssid_count = 0; // g_staScanSuccess = 0; // //开始扫描 // Scan(); // //等待扫描结果 // WaitSacnResult(); // //获取扫描列表 // error = GetScanInfoList(info, &size); // }while(g_staScanSuccess != 1); // //打印WiFi列表 // printf("********************\r\n"); // for(uint8_t i = 0; i < ssid_count; i++) // { // printf("no:%03d, ssid:%-30s, rssi:%5d\r\n", i+1, info[i].ssid, info[i].rssi/100); // } // printf("********************\r\n"); // //连接指定的WiFi热点 // for(uint8_t i = 0; i < ssid_count; i++) // { // printf(">>>>>>马上进行匹配:%s",select_ap_config.ssid); // if (strcmp(select_ap_config.ssid, info[i].ssid) == 0) // { // int result; // printf(">>>>>匹配到的ssid:%s\r\n",info[i].ssid); // printf("Select:%3d wireless, Waiting...\r\n", i+1); // // 拷贝要连接的热点信息，直接传ssid和psk进来，到这里就丢失了 // // WifiDeviceConfig select_ap_config = {0}; // // strcpy(select_ap_config.ssid, info[i].ssid); // // strcpy(select_ap_config.preSharedKey, wifi_profile->wifi_passwd); // select_ap_config.securityType = SELECT_WIFI_SECURITYTYPE; // if (AddDeviceConfig(&select_ap_config, &result) == WIFI_SUCCESS) // { // if (ConnectTo(result) == WIFI_SUCCESS && WaitConnectResult() == 1) // { // printf("WiFi connect succeed!\r\n"); // g_lwip_netif = netifapi_netif_find(SELECT_WLAN_PORT); // break; // } // } // } // if(i == ssid_count-1) // { // printf("ERROR: No wifi as expected\r\n"); // while(1) osDelay(100); // } // } for (;;) { if(NULL != g_lwip_netif || repeatFindMyTargetSSIDCount>=10) { // 连接成功或者次数超过10次，跳出循环 break; } printf(">>>>>>第%d次循环<<<<<<<\r\n",(repeatFindMyTargetSSIDCount+1)); do { // 重置标志位 ssid_count = 0; g_staScanSuccess = 0; // 开始扫描 Scan(); // 等待扫描结果 WaitSacnResult(); // 获取扫描列表 error = GetScanInfoList(info, &size); } while (g_staScanSuccess != 1); // 打印WiFi列表 printf("********************\r\n"); for (uint8_t i = 0; i < ssid_count; i++) { printf("no:%03d, ssid:%-30s, rssi:%5d\r\n", i + 1, info[i].ssid, info[i].rssi / 100); } printf("********************\r\n"); // 连接指定的WiFi热点 for (uint8_t i = 0; i < ssid_count; i++) { if (strcmp(select_ap_config.ssid, info[i].ssid) == 0) { int result; printf(">>>>>匹配到的ssid:%s\r\n", info[i].ssid); printf("Select:%3d wireless, Waiting...\r\n", i + 1); // 拷贝要连接的热点信息，直接传ssid和psk进来，到这里就丢失了 // WifiDeviceConfig select_ap_config = {0}; // strcpy(select_ap_config.ssid, info[i].ssid); // strcpy(select_ap_config.preSharedKey, wifi_profile->wifi_passwd); select_ap_config.securityType = SELECT_WIFI_SECURITYTYPE; if (AddDeviceConfig(&select_ap_config, &result) == WIFI_SUCCESS) { if (ConnectTo(result) == WIFI_SUCCESS && WaitConnectResult() == 1) { printf("WiFi connect succeed!\r\n"); g_lwip_netif = netifapi_netif_find(SELECT_WLAN_PORT); break; } } } if (i == ssid_count - 1) { printf("NotFound Avaliable Wifi SSID， Waiting 200ms Retry...\r\n"); repeatFindMyTargetSSIDCount += 1; // 每次间隔200毫秒，扫描网络列表 osDelay(200); } } } if(repeatFindMyTargetSSIDCount >=10 && NULL == g_lwip_netif) { printf("Retry connect wifi count >=10 ，Error：No wifi as expected.\r\n"); // 挂起 while (1) osDelay(100); } // 启动DHCP if (g_lwip_netif) { dhcp_start(g_lwip_netif); printf("begain to dhcp\r\n"); } // 等待DHCP for (;;) { if (dhcp_is_bound(g_lwip_netif) == ERR_OK) { printf("<-- DHCP state:OK -->\r\n"); // 打印获取到的IP信息 netifapi_netif_common(g_lwip_netif, dhcp_clients_info_show, NULL); break; } printf("<-- DHCP