148 lines
4.9 KiB
C
148 lines
4.9 KiB
C
#include <string.h>
|
|
#include "esp_timer.h"
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/task.h"
|
|
#include "esp_wifi.h"
|
|
#include "esp_event.h"
|
|
#include "freertos/event_groups.h"
|
|
#include "esp_log.h"
|
|
#include "esp_netif.h"
|
|
#include <lwip/sockets.h>
|
|
|
|
#include "wifi.h"
|
|
|
|
#define WIFI_CONNECTED_BIT BIT0
|
|
#define WIFI_FAIL_BIT BIT1
|
|
|
|
static const char *TAG = "smart-oil-heater-control-system-wifi";
|
|
|
|
static EventGroupHandle_t s_wifi_event_group;
|
|
static void event_handler(void *arg, esp_event_base_t event_base,
|
|
int32_t event_id, void *event_data);
|
|
static bool parse_bssid(const char *bssid_str, uint8_t *bssid);
|
|
|
|
void initWifi(void)
|
|
{
|
|
s_wifi_event_group = xEventGroupCreate();
|
|
ESP_ERROR_CHECK(esp_netif_init());
|
|
ESP_ERROR_CHECK(esp_event_loop_create_default());
|
|
|
|
esp_netif_t *my_sta = esp_netif_create_default_wifi_sta();
|
|
esp_netif_dhcpc_stop(my_sta);
|
|
esp_netif_ip_info_t ip_info;
|
|
ip_info.ip.addr = ipaddr_addr(CONFIG_STATIC_IP_ADDR);
|
|
ip_info.gw.addr = ipaddr_addr(CONFIG_STATIC_GATEWAY_IP_ADDR);
|
|
ip_info.netmask.addr = ipaddr_addr(CONFIG_STATIC_IP_NETMASK);
|
|
esp_netif_set_ip_info(my_sta, &ip_info);
|
|
|
|
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 wifi_config = {
|
|
.sta = {
|
|
.ssid = CONFIG_SSID,
|
|
.password = CONFIG_WIFI_PASSWORD,
|
|
.threshold.authmode = WIFI_AUTH_WPA2_PSK,
|
|
},
|
|
};
|
|
|
|
#if CONFIG_ENV_WIFI_BSSID_LOCK
|
|
/* Lock to specific AP by BSSID */
|
|
if (parse_bssid(CONFIG_ENV_WIFI_BSSID, wifi_config.sta.bssid))
|
|
{
|
|
wifi_config.sta.bssid_set = true;
|
|
ESP_LOGI(TAG, "BSSID lock enabled: %s", CONFIG_ENV_WIFI_BSSID);
|
|
}
|
|
else
|
|
{
|
|
ESP_LOGE(TAG, "Invalid BSSID format: %s", CONFIG_ENV_WIFI_BSSID);
|
|
wifi_config.sta.bssid_set = false;
|
|
}
|
|
#endif
|
|
|
|
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());
|
|
|
|
ESP_ERROR_CHECK(esp_wifi_set_max_tx_power(78)); // Set max power to 19.5 dBm (78 in units of 0.25 dBm)
|
|
ESP_ERROR_CHECK(esp_wifi_set_ps(WIFI_PS_MIN_MODEM)); // Use power-saving mode
|
|
|
|
ESP_LOGI(TAG, "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)
|
|
{
|
|
ESP_LOGI(TAG, "Connected to ap SSID:%s", CONFIG_SSID);
|
|
}
|
|
else if (bits & WIFI_FAIL_BIT)
|
|
{
|
|
ESP_LOGI(TAG, "Failed to connect to SSID:%s", CONFIG_SSID);
|
|
}
|
|
else
|
|
{
|
|
ESP_LOGE(TAG, "Unexpected event");
|
|
}
|
|
vEventGroupDelete(s_wifi_event_group);
|
|
}
|
|
|
|
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)
|
|
{
|
|
esp_wifi_connect();
|
|
ESP_LOGI(TAG, "Retry to connect to the AP");
|
|
}
|
|
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;
|
|
ESP_LOGI(TAG, "Got ip:" IPSTR, IP2STR(&event->ip_info.ip));
|
|
xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Parse BSSID string to byte array
|
|
*
|
|
* @param bssid_str BSSID string in format "XX:XX:XX:XX:XX:XX"
|
|
* @param bssid Output byte array (6 bytes)
|
|
* @return true on success, false on parse error
|
|
*/
|
|
static bool parse_bssid(const char *bssid_str, uint8_t *bssid)
|
|
{
|
|
unsigned int tmp[6];
|
|
int parsed = sscanf(bssid_str, "%x:%x:%x:%x:%x:%x",
|
|
&tmp[0], &tmp[1], &tmp[2],
|
|
&tmp[3], &tmp[4], &tmp[5]);
|
|
if (parsed != 6)
|
|
{
|
|
return false;
|
|
}
|
|
for (int i = 0; i < 6; i++)
|
|
{
|
|
bssid[i] = (uint8_t)tmp[i];
|
|
}
|
|
return true;
|
|
} |