Init commit

components/device_list/CMakeLists.txt

@@ -0,0 +1,4 @@
+idf_component_register(
+    SRCS "device_list.c"
+    INCLUDE_DIRS "include"
+)

components/device_list/device_list.c

@@ -0,0 +1,76 @@
+#include "device_list.h"
+#include <string.h>
+#include "esp_log.h"
+
+static device_info_t device_list[DEVICE_LIST_MAX_SIZE];
+static size_t device_count = 0;
+static const char *TAG = "device_list";
+
+void device_list_init(void)
+{
+    memset(device_list, 0, sizeof(device_list));
+    device_count = 0;
+
+    ESP_LOGI(TAG, "Device list initialized");
+}
+
+device_info_t *device_list_find_by_mac(const struct eth_addr *mac)
+{
+    if (mac == NULL)
+    {
+        return NULL;
+    }
+
+    for (size_t i = 0; i < device_count; i++)
+    {
+        if (memcmp(device_list[i].mac.addr, mac->addr, ETH_HWADDR_LEN) == 0)
+        {
+            return &device_list[i];
+        }
+    }
+
+    return NULL;
+}
+
+bool device_list_add_or_update(const device_info_t *device)
+{
+    device_info_t *existing_device = device_list_find_by_mac(&device->mac);
+
+    if (existing_device != NULL)
+    {
+        ip4_addr_copy(existing_device->ip, device->ip);
+        existing_device->last_seen = device->last_seen;
+        existing_device->active = device->active;
+
+        ESP_LOGI(TAG, "Device updated");
+        //ESP_LOGI(TAG, "Device updated: " MACSTR, MAC2STR(device->mac.addr));
+        return true;
+    }
+
+    if (device_count >= DEVICE_LIST_MAX_SIZE)
+    {
+        ESP_LOGW(TAG, "Device list is full");
+        return false;
+    }
+
+    device_list[device_count] = *device;
+    device_count++;
+
+    ESP_LOGI(TAG, "Device added (%u/%u)", (unsigned)device_count, DEVICE_LIST_MAX_SIZE);
+    return true;
+}
+
+size_t device_list_count(void)
+{
+    return device_count;
+}
+
+const device_info_t *device_list_get_by_index(size_t index)
+{
+    if (index >= device_count)
+    {
+        return NULL;
+    }
+
+    return &device_list[index];
+}

components/device_list/include/device_list.h

@@ -0,0 +1,26 @@
+#ifndef DEVICE_LIST_H
+#define DEVICE_LIST_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include "freertos/FreeRTOS.h"
+#include "lwip/ip4_addr.h"
+#include "lwip/prot/ethernet.h"
+
+#define DEVICE_LIST_MAX_SIZE 64
+
+typedef struct
+{
+    ip4_addr_t ip;
+    struct eth_addr mac;
+    TickType_t last_seen;
+    bool active;
+} device_info_t;
+
+void device_list_init(void);
+device_info_t *device_list_find_by_mac(const struct eth_addr *mac);
+bool device_list_add_or_update(const device_info_t *device);
+size_t device_list_count(void);
+const device_info_t *device_list_get_by_index(size_t index);
+
+#endif