70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
|
#include "wifi.h"
|
||
|
|
|
||
|
|
/* The examples use simple WiFi configuration that you can set via
|
||
|
|
'make menuconfig'.
|
||
|
|
|
||
|
|
If you'd rather not, just change the below entries to strings with
|
||
|
|
the config you want - ie #define EXAMPLE_WIFI_SSID "mywifissid"
|
||
|
|
*/
|
||
|
|
#define EXAMPLE_WIFI_SSID "mi"
|
||
|
|
#define EXAMPLE_WIFI_PASS "00000000"
|
||
|
|
|
||
|
|
|
||
|
|
/* FreeRTOS event group to signal when we are connected & ready to make a request */
|
||
|
|
static EventGroupHandle_t wifi_event_group;
|
||
|
|
|
||
|
|
/* The event group allows multiple bits for each event,
|
||
|
|
but we only care about one event - are we connected
|
||
|
|
to the AP with an IP? */
|
||
|
|
const int CONNECTED_BIT = BIT0;
|
||
|
|
|
||
|
|
/* Constants that aren't configurable in menuconfig */
|
||
|
|
static const char *TAG = "WIFI";
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
static esp_err_t event_handler(void *ctx, system_event_t *event)
|
||
|
|
{
|
||
|
|
switch(event->event_id) {
|
||
|
|
case SYSTEM_EVENT_STA_START:
|
||
|
|
esp_wifi_connect();
|
||
|
|
break;
|
||
|
|
case SYSTEM_EVENT_STA_GOT_IP:
|
||
|
|
xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
|
||
|
|
break;
|
||
|
|
case SYSTEM_EVENT_STA_DISCONNECTED:
|
||
|
|
/* This is a workaround as ESP32 WiFi libs don't currently
|
||
|
|
auto-reassociate. */
|
||
|
|
esp_wifi_connect();
|
||
|
|
xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return ESP_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
void initialise_wifi(void)
|
||
|
|
{
|
||
|
|
tcpip_adapter_init();
|
||
|
|
wifi_event_group = xEventGroupCreate();
|
||
|
|
ESP_ERROR_CHECK( esp_event_loop_init(event_handler, NULL) );
|
||
|
|
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
|
||
|
|
ESP_ERROR_CHECK( esp_wifi_init(&cfg) );
|
||
|
|
ESP_ERROR_CHECK( esp_wifi_set_storage(WIFI_STORAGE_RAM) );
|
||
|
|
wifi_config_t wifi_config = {
|
||
|
|
.sta = {
|
||
|
|
.ssid = EXAMPLE_WIFI_SSID,
|
||
|
|
.password = EXAMPLE_WIFI_PASS,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
ESP_LOGI(TAG, "Setting WiFi configuration SSID %s...", wifi_config.sta.ssid);
|
||
|
|
ESP_ERROR_CHECK( esp_wifi_set_mode(WIFI_MODE_STA) );
|
||
|
|
ESP_ERROR_CHECK( esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config) );
|
||
|
|
ESP_ERROR_CHECK( esp_wifi_start() );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|