refactor: simplify OTA update process by removing unnecessary buffer and adjusting offsets

platformio.ini

@@ -66,7 +66,7 @@ extra_scripts =
     pre:scripts/pre_spiffs.py    ; wird als zweites ausgeführt
     pre:scripts/combine_html.py  ; wird als drittes ausgeführt
     scripts/gzip_files.py
-    scripts/create_full_bin.py  ; Neues Skript zur Erstellung der full.bin
+    # scripts/create_full_bin.py  # Nicht mehr benötigt, da full.bin im Workflow erstellt wird
 
 ; Remove or comment out the targets line
 ;targets = buildfs, build

src/ota.cpp

@@ -28,24 +28,14 @@ void handleOTAUpload(AsyncWebServerRequest *request, String filename, size_t ind
     static size_t contentLength = 0;
     static bool isFullImage = false;
     static uint32_t currentOffset = 0;
-    static uint8_t *spiffsBuffer = nullptr;
-    static size_t spiffsSize = 0;
-    static const uint32_t SPIFFS_START = 0x3D0000;  // Korrigierter SPIFFS start address aus partitions.csv
-    static const uint32_t SPIFFS_SIZE = 0x30000;   // Korrigierte SPIFFS size aus partitions.csv
     
-    // Stop all tasks to save resources
+    // Offset-Definitionen aus dem Workflow
-    if (!tasksAreStopped && (RfidReaderTask || BambuMqttTask || ScaleTask)) {
+    static const uint32_t BOOTLOADER_OFFSET = 0x1000;
-        stopAllTasks();
+    static const uint32_t PARTITIONS_OFFSET = 0x8000;
-        tasksAreStopped = true;
+    static const uint32_t FIRMWARE_OFFSET = 0x10000;
-    }
+    static const uint32_t SPIFFS_OFFSET = 0x3D0000;
     
     if (!index) {
-        // Reset static variables
-        if (spiffsBuffer) {
-            free(spiffsBuffer);
-            spiffsBuffer = nullptr;
-        }
-        
         contentLength = request->contentLength();
         Serial.printf("Update size: %u bytes\n", contentLength);
         
@@ -54,69 +44,34 @@ void handleOTAUpload(AsyncWebServerRequest *request, String filename, size_t ind
             return;
         }
 
-        if (data[0] == ESP_MAGIC) {
+        // Stop all tasks to save resources
-            isFullImage = (contentLength > SPIFFS_START);
+        if (!tasksAreStopped && (RfidReaderTask || BambuMqttTask || ScaleTask)) {
-            
+            stopAllTasks();
-            if (isFullImage) {
+            tasksAreStopped = true;
-                if (!Update.begin(SPIFFS_START, U_FLASH)) {
-                    Serial.printf("Not enough space for firmware: %u required\n", SPIFFS_START);
-                    request->send(400, "application/json", "{\"status\":\"error\",\"message\":\"Not enough space available\"}");
-                    return;
         }
 
-                spiffsSize = SPIFFS_SIZE;
+        isFullImage = (contentLength > SPIFFS_OFFSET);
-                spiffsBuffer = (uint8_t*)malloc(spiffsSize);
+        if (!isFullImage) {
-                if (!spiffsBuffer) {
+            // Regular firmware update
-                    Serial.println("Failed to allocate SPIFFS buffer");
+            if (!Update.begin(contentLength)) {
-                    request->send(400, "application/json", "{\"status\":\"error\",\"message\":\"Memory allocation failed\"}");
-                    return;
-                }
-                memset(spiffsBuffer, 0xFF, spiffsSize);
-                Serial.println("Full image update started");
-            } else {
-                if (!Update.begin(contentLength, U_FLASH)) {
                 Serial.printf("Not enough space: %u required\n", contentLength);
                 request->send(400, "application/json", "{\"status\":\"error\",\"message\":\"Not enough space available\"}");
                 return;
             }
             Serial.println("Firmware update started");
-            }
         } else {
-            request->send(400, "application/json", "{\"status\":\"error\",\"message\":\"Invalid image format\"}");
+            // Full image update - start with bootloader
+            if (!Update.begin(contentLength, U_FLASH)) {
+                Serial.printf("Not enough space for full image: %u required\n", contentLength);
+                request->send(400, "application/json", "{\"status\":\"error\",\"message\":\"Not enough space available\"}");
                 return;
             }
+            Serial.println("Full image update started");
+        }
         currentOffset = 0;
     }
 
-    if (isFullImage) {
+    // Write data
-        // Firmware Teil
-        if (currentOffset < SPIFFS_START) {
-            size_t writeLen = min(len, (size_t)(SPIFFS_START - currentOffset));
-            if (Update.write(data, writeLen) != writeLen) {
-                String errorMsg = Update.errorString();
-                if (errorMsg != "No Error") {
-                    Update.printError(Serial);
-                    if (spiffsBuffer) free(spiffsBuffer);
-                    request->send(400, "application/json", "{\"status\":\"error\",\"message\":\"Error writing firmware: " + errorMsg + "\"}");
-                    return;
-                }
-            }
-        }
-        
-        // SPIFFS Teil
-        if (currentOffset + len > SPIFFS_START) {
-            uint32_t spiffsOffset = (currentOffset >= SPIFFS_START) ? 
-                                  (currentOffset - SPIFFS_START) : 0;
-            uint32_t dataOffset = (currentOffset < SPIFFS_START) ? 
-                                (SPIFFS_START - currentOffset) : 0;
-            
-            if (spiffsOffset < spiffsSize) {
-                size_t copyLen = min(len - dataOffset, spiffsSize - spiffsOffset);
-                memcpy(spiffsBuffer + spiffsOffset, data + dataOffset, copyLen);
-                Serial.printf("Collecting SPIFFS data: offset=%u, len=%u\n", spiffsOffset, copyLen);
-            }
-        }
-    } else {
     if (Update.write(data, len) != len) {
         String errorMsg = Update.errorString();
         if (errorMsg != "No Error") {
@@ -125,65 +80,16 @@ void handleOTAUpload(AsyncWebServerRequest *request, String filename, size_t ind
             return;
         }
     }
-    }
     
     currentOffset += len;
     
     if (final) {
         if (Update.end(true)) {
-            Serial.println("Firmware update complete");
+            Serial.println("Update complete");
-            
-            if (isFullImage && spiffsBuffer) {
-                Serial.println("Starting SPIFFS update");
-                
-                if (SPIFFS.begin(true)) {
-                    SPIFFS.end();
-                }
-                
-                if (!Update.begin(spiffsSize, U_SPIFFS)) {
-                    Serial.println("Could not begin SPIFFS update");
-                    free(spiffsBuffer);
-                    request->send(400, "application/json", "{\"status\":\"error\",\"message\":\"SPIFFS update initialization failed\"}");
-                    return;
-                }
-                
-                Serial.printf("Writing SPIFFS data: %u bytes\n", spiffsSize);
-                if (Update.write(spiffsBuffer, spiffsSize) != spiffsSize) {
-                    Serial.println("SPIFFS Write Failed");
-                    Update.printError(Serial);
-                    free(spiffsBuffer);
-                    request->send(400, "application/json", "{\"status\":\"error\",\"message\":\"SPIFFS write failed\"}");
-                    return;
-                }
-                
-                if (!Update.end(true)) {
-                    Serial.println("SPIFFS End Failed");
-                    Update.printError(Serial);
-                    free(spiffsBuffer);
-                    request->send(400, "application/json", "{\"status\":\"error\",\"message\":\"SPIFFS finish failed\"}");
-                    return;
-                }
-                
-                free(spiffsBuffer);
-                spiffsBuffer = nullptr;
-                Serial.println("SPIFFS update complete");
-                
-                if (!SPIFFS.begin(true)) {
-                    Serial.println("SPIFFS mount after update failed");
-                    request->send(400, "application/json", "{\"status\":\"error\",\"message\":\"SPIFFS verification failed\"}");
-                    return;
-                }
-                SPIFFS.end();
-            }
-            
             request->send(200, "application/json", "{\"status\":\"success\",\"message\":\"Update successful! Device will restart...\",\"restart\":true}");
             delay(1000);
             ESP.restart();
         } else {
-            if (spiffsBuffer) {
-                free(spiffsBuffer);
-                spiffsBuffer = nullptr;
-            }
             String errorMsg = Update.errorString();
             if (errorMsg != "No Error") {
                 Update.printError(Serial);