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cinema-display/firmware/main/wps.c
Peter Siegmund 918efcfa17
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Signed-off-by: Peter Siegmund <developer@mars3142.org>
2025-12-07 00:02:36 +01:00

121 lines
4.4 KiB
C

#include "esp_event.h"
#include "esp_log.h"
#include "esp_wifi.h"
#include "nvs_flash.h"
static const char *TAG = "WPS_EXAMPLE";
// Function to start WPS (e.g., called by button interrupt)
void start_wps_process()
{
ESP_LOGI(TAG, "Starting WPS...");
// esp_wifi_wps_config_t wps_config = WPS_CONFIG_INIT_DEFAULT(WPS_TYPE_PBC);
// ESP_ERROR_CHECK(esp_wifi_wps_enable(&wps_config));
// ESP_ERROR_CHECK(esp_wifi_wps_start(0)); // Start WPS indefinitely (handle timeout via event)
}
static void wifi_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data)
{
if (event_base == WIFI_EVENT)
{
switch (event_id)
{
case WIFI_EVENT_STA_START:
ESP_LOGI(TAG, "WIFI_EVENT_STA_START: Wi-Fi station started.");
// Option 1: Start WPS directly here
// start_wps_process();
// Option 2: Wait for external trigger (e.g., button), see start_wps_process()
// Optional: Try to connect normally if credentials are stored
// esp_wifi_connect();
break;
case WIFI_EVENT_STA_CONNECTED:
ESP_LOGI(TAG, "WIFI_EVENT_STA_CONNECTED");
// If connected (e.g., from flash), disable WPS if it was still running
// esp_wifi_wps_disable();
break;
case WIFI_EVENT_STA_DISCONNECTED:
ESP_LOGI(TAG, "WIFI_EVENT_STA_DISCONNECTED");
// Possibly start normal connection attempt or wait for WPS trigger
// esp_wifi_connect(); // Or: Wait for button for WPS
break;
case WIFI_EVENT_STA_WPS_ER_SUCCESS:
ESP_LOGI(TAG, "WIFI_EVENT_STA_WPS_ER_SUCCESS");
// WPS successful, credentials were received.
// The Wi-Fi stack now automatically tries to connect.
// Disable WPS.
ESP_ERROR_CHECK(esp_wifi_wps_disable());
// Optional: Read and save credentials if needed (usually not required as the stack uses them internally)
break;
case WIFI_EVENT_STA_WPS_ER_FAILED:
ESP_LOGI(TAG, "WIFI_EVENT_STA_WPS_ER_FAILED");
ESP_ERROR_CHECK(esp_wifi_wps_disable());
// Here error handling: Info to user, possibly allow restart
break;
case WIFI_EVENT_STA_WPS_ER_TIMEOUT:
ESP_LOGI(TAG, "WIFI_EVENT_STA_WPS_ER_TIMEOUT");
ESP_ERROR_CHECK(esp_wifi_wps_disable());
// Here error handling: Info to user, possibly allow restart
break;
case WIFI_EVENT_STA_WPS_ER_PIN:
ESP_LOGI(TAG, "WIFI_EVENT_STA_WPS_ER_PIN");
// Relevant for PIN mode
// wifi_event_sta_wps_er_pin_t* event = (wifi_event_sta_wps_er_pin_t*) event_data;
// ESP_LOGI(TAG, "WPS PIN: %.*s", event->pin_code_len, event->pin_code); // Example: ESP32 generates PIN
break;
default:
break;
}
}
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 address: " IPSTR, IP2STR(&event->ip_info.ip));
// Connection successfully established
}
}
void wifi_init_sta_wps(void)
{
// 1. Initialize NVS
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);
// 2. Initialize TCP/IP stack
ESP_ERROR_CHECK(esp_netif_init());
// 3. Create event loop
ESP_ERROR_CHECK(esp_event_loop_create_default());
// 4. Create default Wi-Fi Station Netif
esp_netif_create_default_wifi_sta();
// 5. Initialize Wi-Fi driver
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
// 6. Register event handler
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &wifi_event_handler, NULL));
// 7. Set Wi-Fi mode to station
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
// 8. Start Wi-Fi (triggers WIFI_EVENT_STA_START)
ESP_ERROR_CHECK(esp_wifi_start());
ESP_LOGI(TAG, "Wi-Fi initialization completed.");
ESP_LOGI(TAG, "Ready for WPS trigger (e.g., button press or automatic start in STA_START).");
}