mirror of
https://github.com/cesanta/mongoose.git
synced 2024-12-21 13:42:15 +08:00
105 lines
3.7 KiB
C
105 lines
3.7 KiB
C
// Code taken from the ESP32 IDF WiFi station Example
|
|
|
|
#include <string.h>
|
|
#include "esp_event.h"
|
|
#include "esp_log.h"
|
|
#include "esp_system.h"
|
|
#include "esp_wifi.h"
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/event_groups.h"
|
|
#include "freertos/task.h"
|
|
#include "nvs_flash.h"
|
|
|
|
#include "lwip/err.h"
|
|
#include "lwip/sys.h"
|
|
|
|
#include "mongoose.h"
|
|
|
|
static EventGroupHandle_t s_wifi_event_group;
|
|
|
|
/* The event group allows multiple bits for each event, but we only care about
|
|
* two events:
|
|
* - we are connected to the AP with an IP
|
|
* - we failed to connect after the maximum amount of retries */
|
|
#define WIFI_CONNECTED_BIT BIT0
|
|
#define WIFI_FAIL_BIT BIT1
|
|
|
|
static int s_retry_num = 0;
|
|
|
|
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) {
|
|
if (s_retry_num < 3) {
|
|
esp_wifi_connect();
|
|
s_retry_num++;
|
|
MG_INFO(("retry to connect to the AP"));
|
|
} else {
|
|
xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT);
|
|
}
|
|
MG_ERROR(("connect to the AP fail"));
|
|
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
|
|
ip_event_got_ip_t *event = (ip_event_got_ip_t *) event_data;
|
|
MG_INFO(("IP ADDRESS:" IPSTR, IP2STR(&event->ip_info.ip)));
|
|
s_retry_num = 0;
|
|
xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
|
|
}
|
|
}
|
|
|
|
void wifi_init(const char *ssid, const char *pass) {
|
|
esp_err_t ret = nvs_flash_init();
|
|
if (ret == ESP_ERR_NVS_NO_FREE_PAGES ||
|
|
ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
|
|
ESP_ERROR_CHECK(nvs_flash_erase());
|
|
ret = nvs_flash_init();
|
|
}
|
|
ESP_ERROR_CHECK(ret);
|
|
|
|
s_wifi_event_group = xEventGroupCreate();
|
|
|
|
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));
|
|
|
|
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));
|
|
|
|
wifi_config_t c = {.sta = {.threshold = {.authmode = WIFI_AUTH_WPA2_PSK},
|
|
.pmf_cfg = {.capable = true, .required = false}}};
|
|
snprintf((char *) c.sta.ssid, sizeof(c.sta.ssid), "%s", ssid);
|
|
snprintf((char *) c.sta.password, sizeof(c.sta.password), "%s", pass);
|
|
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
|
|
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &c));
|
|
ESP_ERROR_CHECK(esp_wifi_start());
|
|
MG_DEBUG(("wifi_init_sta finished."));
|
|
|
|
EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
|
|
WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
|
|
pdFALSE, pdFALSE, portMAX_DELAY);
|
|
|
|
if (bits & WIFI_CONNECTED_BIT) {
|
|
MG_INFO(("connected to ap SSID:%s password:%s", ssid, pass));
|
|
} else if (bits & WIFI_FAIL_BIT) {
|
|
MG_ERROR(("Failed to connect to SSID:%s, password:%s", ssid, pass));
|
|
} else {
|
|
MG_ERROR(("UNEXPECTED EVENT"));
|
|
}
|
|
|
|
/* The event will not be processed after unregister */
|
|
ESP_ERROR_CHECK(esp_event_handler_instance_unregister(
|
|
IP_EVENT, IP_EVENT_STA_GOT_IP, instance_got_ip));
|
|
ESP_ERROR_CHECK(esp_event_handler_instance_unregister(
|
|
WIFI_EVENT, ESP_EVENT_ANY_ID, instance_any_id));
|
|
vEventGroupDelete(s_wifi_event_group);
|
|
}
|