Remove sync preset loading (ugly core check)

WS buffer check for ESP32-S2
Delay for Serial init on CDC USB

wled00/fcn_declare.h

@@ -191,8 +191,8 @@ int16_t loadPlaylist(JsonObject playlistObject, byte presetId = 0);
 void handlePlaylist();
 
 //presets.cpp
-void handlePresets(bool force = false);
-bool applyPreset(byte index, byte callMode = CALL_MODE_DIRECT_CHANGE, bool fromJson = false);
+void handlePresets();
+bool applyPreset(byte index, byte callMode = CALL_MODE_DIRECT_CHANGE);
 inline bool applyTemporaryPreset() {return applyPreset(255);};
 void savePreset(byte index, const char* pname = nullptr, JsonObject saveobj = JsonObject());
 inline void saveTemporaryPreset() {savePreset(255);};

wled00/presets.cpp

@@ -11,29 +11,36 @@ static char *tmpRAMbuffer = nullptr;
 static volatile byte presetToApply = 0;
 static volatile byte callModeToApply = 0;
 
-bool applyPreset(byte index, byte callMode, bool fromJson)
+bool applyPreset(byte index, byte callMode)
 {
   DEBUG_PRINT(F("Request to apply preset: "));
   DEBUG_PRINTLN(index);
   presetToApply = index;
   callModeToApply = callMode;
+/*
   // the following is needed in case of HTTP JSON API call to return correct state to the caller
   // fromJson is true in case when deserializeState() was called with presetId==0
   if (fromJson) handlePresets(true); // force immediate processing
+*/
   return true;
 }
 
-void handlePresets(bool force)
+void handlePresets()
 {
   bool changePreset = false;
   uint8_t tmpPreset = presetToApply; // store temporary since deserializeState() may call applyPreset()
   uint8_t tmpMode   = callModeToApply;
 
-  if (tmpPreset == 0 || (fileDoc && !force)) return; // JSON buffer already allocated and not force apply or no preset waiting
+  if (tmpPreset == 0 || (fileDoc /*&& !force*/)) return; // JSON buffer already allocated and not force apply or no preset waiting
 
   JsonObject fdo;
   const char *filename = tmpPreset < 255 ? "/presets.json" : "/tmp.json";
 
+/*
+ * The following code is no longer needed as handlePreset() is never run from
+ * network callback.
+ * **************************************************************************
+ * 
   //crude way to determine if this was called by a network request
   uint8_t core = 1;
   #ifdef ARDUINO_ARCH_ESP32
@@ -80,7 +87,7 @@ void handlePresets(bool force)
   }
 
   if (force) return; // something went wrong with force option (most likely WS request), quit and wait for async load
-
+*/
   // allocate buffer
   if (!requestJSONBufferLock(9)) return;  // will also assign fileDoc
 

wled00/wled.cpp

@@ -267,6 +267,9 @@ void WLED::setup()
 
   Serial.begin(115200);
   Serial.setTimeout(50);
+  #if defined(WLED_DEBUG) && (defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32C3))
+  delay(2500);  // allow CDC USB serial to initialise
+  #endif
   DEBUG_PRINTLN();
   DEBUG_PRINT(F("---WLED "));
   DEBUG_PRINT(versionString);

wled00/wled.h

@@ -8,7 +8,7 @@
  */
 
 // version code in format yymmddb (b = daily build)
-#define VERSION 2209161
+#define VERSION 2209191
 
 //uncomment this if you have a "my_config.h" file you'd like to use
 //#define WLED_USE_MY_CONFIG

wled00/ws.cpp

@@ -111,13 +111,18 @@ void sendDataWs(AsyncWebSocketClient * client)
   DEBUG_PRINTF("JSON buffer size: %u for WS request (%u).\n", doc.memoryUsage(), len);
 
   size_t heap1 = ESP.getFreeHeap();
-  buffer = ws.makeBuffer(len); // will not allocate correct memory sometimes
+  buffer = ws.makeBuffer(len); // will not allocate correct memory sometimes on ESP8266
+  #ifdef ESP8266
   size_t heap2 = ESP.getFreeHeap();
+  #else
+  size_t heap2 = 0; // ESP32 variants do not have the same issue and will work without checking heap allocation
+  #endif
   if (!buffer || heap1-heap2<len) {
     releaseJSONBufferLock();
     DEBUG_PRINTLN(F("WS buffer allocation failed."));
     ws.closeAll(1013); //code 1013 = temporary overload, try again later
     ws.cleanupClients(0); //disconnect all clients to release memory
+    ws._cleanBuffers();
     return; //out of memory
   }