90 lines
3.3 KiB
C
90 lines
3.3 KiB
C
#include "wifi_station.h"
|
||
#include "esp_wifi.h"
|
||
#include "esp_log.h"
|
||
|
||
/* 待连接AP的ssid、password，连接失败重试次数 可以通过idf.py menuconfig配置 */
|
||
#define ESP_WIFI_SSID CONFIG_ESP_WIFI_SSID
|
||
#define ESP_WIFI_PASS CONFIG_ESP_WIFI_PASSWORD
|
||
#define ESP_MAXIMUM_RETRY CONFIG_ESP_MAXIMUM_RETRY
|
||
|
||
static const char *TAG = "wifi station";
|
||
static int s_retry_num = 0;
|
||
|
||
/* 修正：该函数还需要仔细编写，以处理在运行过程中发生的断连等多种事件，增加程序的健壮性 */
|
||
static void event_handler(void *arg, esp_event_base_t event_base,
|
||
int32_t event_id, void *event_data)
|
||
{
|
||
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START)
|
||
{
|
||
esp_wifi_connect();
|
||
}
|
||
else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED)
|
||
{
|
||
/* disconnected: 重试ESP_MAXIMUM_RETRY次*/
|
||
ESP_LOGI(TAG, "connect to the AP fail");
|
||
if (s_retry_num < ESP_MAXIMUM_RETRY)
|
||
{
|
||
esp_wifi_connect();
|
||
s_retry_num++;
|
||
ESP_LOGI(TAG, "retry to connect to the AP");
|
||
}
|
||
else
|
||
{
|
||
ESP_LOGI(TAG, "Failed to connect to SSID:%s, password:%s",
|
||
ESP_WIFI_SSID, ESP_WIFI_PASS);
|
||
}
|
||
}
|
||
else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_CONNECTED)
|
||
{
|
||
ESP_LOGI(TAG, "connected to ap SSID:%s password:%s",
|
||
ESP_WIFI_SSID, ESP_WIFI_PASS);
|
||
}
|
||
else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP)
|
||
{
|
||
/* connected后lwip任务自动启动DHCP服务，分配ip */
|
||
ip_event_got_ip_t *event = (ip_event_got_ip_t *)event_data;
|
||
ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip));
|
||
s_retry_num = 0;
|
||
}
|
||
}
|
||
|
||
|
||
void wifi_init_sta(void)
|
||
{
|
||
ESP_LOGI(TAG, "ESP_WIFI_INIT_STA");
|
||
|
||
/* 初始化 */
|
||
ESP_ERROR_CHECK(esp_netif_init());
|
||
ESP_ERROR_CHECK(esp_event_loop_create_default());
|
||
esp_netif_create_default_wifi_sta();
|
||
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
|
||
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
|
||
|
||
/* 注册WIFI和IP事件 */
|
||
esp_event_handler_instance_t instance_any_id;
|
||
esp_event_handler_instance_t instance_got_ip;
|
||
ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
|
||
ESP_EVENT_ANY_ID,
|
||
&event_handler,
|
||
NULL,
|
||
&instance_any_id));
|
||
ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,
|
||
IP_EVENT_STA_GOT_IP,
|
||
&event_handler,
|
||
NULL,
|
||
&instance_got_ip));
|
||
|
||
/* 配置、开启WIFI */
|
||
wifi_config_t wifi_config = {
|
||
.sta = {
|
||
.ssid = ESP_WIFI_SSID,
|
||
.password = ESP_WIFI_PASS,
|
||
.threshold.authmode = WIFI_AUTH_WPA2_PSK,
|
||
},
|
||
};
|
||
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
|
||
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
|
||
ESP_ERROR_CHECK(esp_wifi_start());
|
||
}
|
||
|