feat: Implement Ethernet and Wi-Fi connection management with LED status indicators.

Provider/main/connect.cpp

@@ -1,3 +1,7 @@
+// C STD lib
+#include <assert.h>
+#include <string.h>
+
 // SDK
 #include "esp_err.h"
 #include "esp_eth.h"
@@ -8,12 +12,15 @@
 #include "esp_system.h"
 #include "esp_wifi.h"
 #include "ethernet_init.h"
-#include <assert.h>
-#include <string.h>
 
 // Project includes
 #include "types.hpp"
 
+// Forward declarations
+internal esp_err_t get_ip_info(esp_netif_ip_info_t *ip_info);
+internal void led_blink_number(int n, uint8_t r, uint8_t g, uint8_t b);
+internal void blink_last_ip_octet();
+
 // === Ethernet ===
 
 internal constexpr char kLogEthernet[] = "ETH";
@@ -39,6 +46,7 @@ void eth_on_got_ip(void *arg, esp_event_base_t event_base, int32_t event_id,
   }
   ESP_LOGI(kLogEthernet, "Got IPv4 event: Interface \"%s\" address: " IPSTR,
            esp_netif_get_desc(event->esp_netif), IP2STR(&event->ip_info.ip));
+
   xSemaphoreGive(s_semph_get_ip_addrs);
 }
 
@@ -109,6 +117,7 @@ internal esp_err_t connect_ethernet(bool blockUntilIPAcquired) {
   if (blockUntilIPAcquired) {
     ESP_LOGI(kLogEthernet, "Waiting for IP address.");
     xSemaphoreTake(s_semph_get_ip_addrs, portMAX_DELAY);
+    blink_last_ip_octet();
   }
 
   return ESP_OK;
@@ -130,6 +139,7 @@ internal esp_err_t check_ethernet_connection(uint32_t timeoutSeconds) {
            timeoutSeconds);
   if (xSemaphoreTake(s_semph_get_ip_addrs,
                      pdMS_TO_TICKS(timeoutSeconds * 1000))) {
+    blink_last_ip_octet();
     return ESP_OK;
   } else {
     return ESP_ERR_TIMEOUT;
@@ -154,6 +164,7 @@ void wifi_event_handler(void *arg, esp_event_base_t event_base,
     ip_event_got_ip_t *event = (ip_event_got_ip_t *)event_data;
     ESP_LOGI(kLogWifi, "Got IPv4 event: Interface \"%s\" address: " IPSTR,
              esp_netif_get_desc(event->esp_netif), IP2STR(&event->ip_info.ip));
+
     xSemaphoreGive(s_semph_get_wifi_ip_addrs);
   }
 }
@@ -220,6 +231,7 @@ internal esp_err_t connect_wifi(const char *ssid, const char *password,
   if (blockUntilIPAcquired) {
     ESP_LOGI(kLogWifi, "Waiting for IP address.");
     xSemaphoreTake(s_semph_get_wifi_ip_addrs, portMAX_DELAY);
+    blink_last_ip_octet();
   }
 
   return ESP_OK;
@@ -239,8 +251,37 @@ internal esp_err_t check_wifi_connection(uint32_t timeoutSeconds) {
   ESP_LOGI(kLogWifi, "Waiting for IP address for %d seconds.", timeoutSeconds);
   if (xSemaphoreTake(s_semph_get_wifi_ip_addrs,
                      pdMS_TO_TICKS(timeoutSeconds * 1000))) {
+    blink_last_ip_octet();
     return ESP_OK;
   } else {
     return ESP_ERR_TIMEOUT;
   }
 }
+
+internal esp_err_t get_ip_info(esp_netif_ip_info_t *ip_info) {
+  if (s_eth_netif) {
+    return esp_netif_get_ip_info(s_eth_netif, ip_info);
+  } else if (s_wifi_netif) {
+    return esp_netif_get_ip_info(s_wifi_netif, ip_info);
+  }
+  return ESP_FAIL;
+}
+
+internal void led_blink_number(int n, uint8_t r, uint8_t g, uint8_t b);
+
+internal void blink_last_ip_octet() {
+  esp_netif_ip_info_t ip_info;
+  if (get_ip_info(&ip_info) == ESP_OK) {
+    uint8_t last_octet = (ip_info.ip.addr >> 24) & 0xFF;
+    printf("IP Address: " IPSTR "\n", IP2STR(&ip_info.ip));
+
+    // Blink digits of last_octet
+    int h = last_octet / 100;
+    int t = (last_octet / 10) % 10;
+    int u = last_octet % 10;
+
+    led_blink_number(h, 255, 255, 255);
+    led_blink_number(t, 255, 255, 255);
+    led_blink_number(u, 255, 255, 255);
+  }
+}

Provider/main/led_status.cpp

@@ -53,4 +53,27 @@ internal void set_led_status(led_status status) {
     break;
   }
   led_strip_refresh(led_strip);
-}
+}
+internal void led_blink_number(int n, uint8_t r, uint8_t g, uint8_t b) {
+  if (n <= 0) {
+    for (int i = 0; i < 2; i++) {
+      led_strip_set_pixel(led_strip, 0, r, g, b);
+      led_strip_refresh(led_strip);
+      vTaskDelay(pdMS_TO_TICKS(50));
+      led_strip_clear(led_strip);
+      led_strip_refresh(led_strip);
+      vTaskDelay(pdMS_TO_TICKS(50));
+    }
+    vTaskDelay(pdMS_TO_TICKS(1000));
+    return;
+  }
+  for (int i = 0; i < n; i++) {
+    led_strip_set_pixel(led_strip, 0, r, g, b);
+    led_strip_refresh(led_strip);
+    vTaskDelay(pdMS_TO_TICKS(300));
+    led_strip_clear(led_strip);
+    led_strip_refresh(led_strip);
+    vTaskDelay(pdMS_TO_TICKS(300));
+  }
+  vTaskDelay(pdMS_TO_TICKS(1000));
+}

Provider/main/main.cpp

@@ -15,9 +15,9 @@
 
 // Project cpp (Unity Build entry)
 // clang-format off
+#include "led_status.cpp"
 #include "connect.cpp"
 #include "http_server.cpp"
-#include "led_status.cpp"
 // clang-format on
 
 internal constexpr bool kBlockUntilEthernetEstablished = false;