Prepare OTA execution

esp32_device/.vscode/settings.json

@@ -54,6 +54,7 @@
     "gpio.h": "c",
     "esp_system.h": "c",
     "relays.h": "c",
-    "esp_app_desc.h": "c"
+    "esp_app_desc.h": "c",
+    "ota.h": "c"
   }
 }

esp32_device/main/CMakeLists.txt

@@ -1,4 +1,4 @@
-idf_component_register(SRCS "relays.c" "sync_response.c" "jwt.c" "secure_api.c" "http_client.c" "ethernet.c" "unsecure_api.c" "system.c" "crypto.c" "random.c" "storage.c" "main.c"
+idf_component_register(SRCS "ota.c" "relays.c" "sync_response.c" "jwt.c" "secure_api.c" "http_client.c" "ethernet.c" "unsecure_api.c" "system.c" "crypto.c" "random.c" "storage.c" "main.c"
                         "dev_name.c"
                     INCLUDE_DIRS ".")
 

esp32_device/main/main.c

@@ -12,6 +12,7 @@
 #include "ethernet.h"
 #include "constants.h"
 #include "relays.h"
+#include "ota.h"
 
 static const char *TAG = "main";
 
@@ -206,6 +207,32 @@ void app_main(void)
 
         sync_response_print(res);
 
+        // Check for firmware update
+        if (res->available_update)
+        {
+            ESP_LOGI(TAG, "Will perform system upgrade to version %s!", res->available_update);
+            relays_turn_off_all();
+
+            secure_api_report_log_message(Info, "Device is starting the OTA procedure...");
+
+            if (ota_perform_update(res->available_update))
+            {
+                ESP_LOGI(TAG, "OTA update succesfully executed, will reboot...");
+                secure_api_report_log_message(Info, "Device successfully updated!");
+            }
+            else
+            {
+                ESP_LOGE(TAG, "OTA update failed! Will reboot...");
+                secure_api_report_log_message(Error, "Device update failed!");
+            }
+
+            secure_api_report_log_message(Info, "Device will restart after OTA procedure...");
+
+            system_sleep(SYNC_TIME_INTERVAL);
+            reboot();
+        }
+
+        // Update relays configuration
         for (size_t i = 0; i < relays_count(); i++)
         {
             relays_set(i, sync_response_is_relay_on(res, i));

esp32_device/main/ota.c

@@ -0,0 +1,7 @@
+#include "ota.h"
+
+bool ota_perform_update(const char *version)
+{
+    // TODO
+    return false;
+}

esp32_device/main/ota.h

@@ -0,0 +1,24 @@
+/**
+ * OTA functions
+ */
+
+#pragma once
+
+#include <stddef.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /**
+     * Update device to a desired version
+     *
+     * Returns TRUE in case of success / FALSE otherwise
+     */
+    bool ota_perform_update(const char *version);
+
+#ifdef __cplusplus
+}
+#endif