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feat: add wifi scaner in uart.

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Signed-off-by: Bo <boironic@gmail.com>
This commit is contained in:
Bo
2026-02-10 01:16:00 +08:00
committed by lvbo
parent 5bcb28abbd
commit e79e4e4932
9 changed files with 606 additions and 111 deletions
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84
main/wifi/wifi_manager.c
View File

@@ -16,6 +16,23 @@ static int s_retry_count = 0;
static char s_ip_str[16] = "0.0.0.0";
static bool s_connected = false;
static const char *wifi_reason_to_str(wifi_err_reason_t reason)
{
switch (reason) {
case WIFI_REASON_AUTH_EXPIRE: return "AUTH_EXPIRE";
case WIFI_REASON_AUTH_FAIL: return "AUTH_FAIL";
case WIFI_REASON_ASSOC_EXPIRE: return "ASSOC_EXPIRE";
case WIFI_REASON_ASSOC_FAIL: return "ASSOC_FAIL";
case WIFI_REASON_HANDSHAKE_TIMEOUT: return "HANDSHAKE_TIMEOUT";
case WIFI_REASON_NO_AP_FOUND: return "NO_AP_FOUND";
case WIFI_REASON_BEACON_TIMEOUT: return "BEACON_TIMEOUT";
case WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT: return "4WAY_HANDSHAKE_TIMEOUT";
case WIFI_REASON_MIC_FAILURE: return "MIC_FAILURE";
case WIFI_REASON_CONNECTION_FAIL: return "CONNECTION_FAIL";
default: return "UNKNOWN";
}
}
static void event_handler(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
@@ -23,6 +40,10 @@ static void event_handler(void *arg, esp_event_base_t event_base,
esp_wifi_connect();
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
s_connected = false;
wifi_event_sta_disconnected_t *disc = (wifi_event_sta_disconnected_t *)event_data;
if (disc) {
ESP_LOGW(TAG, "Disconnected (reason=%d:%s)", disc->reason, wifi_reason_to_str(disc->reason));
}
if (s_retry_count < MIMI_WIFI_MAX_RETRY) {
/* Exponential backoff: 1s, 2s, 4s, 8s, ... capped at 30s */
uint32_t delay_ms = MIMI_WIFI_RETRY_BASE_MS << s_retry_count;
@@ -148,3 +169,66 @@ EventGroupHandle_t wifi_manager_get_event_group(void)
{
return s_wifi_event_group;
}
void wifi_manager_scan_and_print(void)
{
wifi_scan_config_t scan_cfg = {
.ssid = NULL,
.bssid = NULL,
.channel = 0,
.show_hidden = true,
};
ESP_LOGI(TAG, "Scanning nearby APs...");
/* Pause auto-connect to allow scan */
esp_wifi_disconnect();
vTaskDelay(pdMS_TO_TICKS(200));
esp_err_t err = esp_wifi_scan_start(&scan_cfg, true /* block */);
if (err == ESP_ERR_WIFI_STATE) {
/* Try a quick stop/start cycle and scan again */
esp_wifi_stop();
vTaskDelay(pdMS_TO_TICKS(200));
esp_wifi_start();
vTaskDelay(pdMS_TO_TICKS(200));
err = esp_wifi_scan_start(&scan_cfg, true /* block */);
}
if (err != ESP_OK) {
ESP_LOGE(TAG, "Scan failed: %s", esp_err_to_name(err));
esp_wifi_connect();
return;
}
uint16_t ap_count = 0;
esp_wifi_scan_get_ap_num(&ap_count);
if (ap_count == 0) {
ESP_LOGW(TAG, "No APs found");
esp_wifi_connect();
return;
}
wifi_ap_record_t *ap_list = calloc(ap_count, sizeof(wifi_ap_record_t));
if (!ap_list) {
ESP_LOGE(TAG, "Out of memory for AP list");
return;
}
uint16_t ap_max = ap_count;
if (esp_wifi_scan_get_ap_records(&ap_max, ap_list) != ESP_OK) {
ESP_LOGE(TAG, "Failed to get AP records");
free(ap_list);
esp_wifi_connect();
return;
}
ESP_LOGI(TAG, "Found %u APs:", ap_max);
for (uint16_t i = 0; i < ap_max; i++) {
const wifi_ap_record_t *ap = &ap_list[i];
ESP_LOGI(TAG, " [%u] SSID=%s RSSI=%d CH=%d Auth=%d",
i + 1, (const char *)ap->ssid, ap->rssi, ap->primary, ap->authmode);
}
free(ap_list);
esp_wifi_connect();
}

5
main/wifi/wifi_manager.h
View File

@@ -44,3 +44,8 @@ esp_err_t wifi_manager_set_credentials(const char *ssid, const char *password);
* Get the event group for WiFi state (WIFI_CONNECTED_BIT / WIFI_FAIL_BIT).
*/
EventGroupHandle_t wifi_manager_get_event_group(void);
/**
* Scan and print nearby APs.
*/
void wifi_manager_scan_and_print(void);