Merge pull request #3251 from gudnimg/farm-mode-setup-gudni

Optimize `farm_mode` initialisation in `setup()`

Firmware/Marlin_main.cpp

@@ -1102,10 +1102,10 @@ void setup()
 	setup_powerhold();
 
 	farm_mode = eeprom_read_byte((uint8_t*)EEPROM_FARM_MODE); 
-	if (farm_mode == 0xFF) 
+	if (farm_mode == 0xFF) {
 		farm_mode = false; //if farm_mode has not been stored to eeprom yet and farm number is set to zero or EEPROM is fresh, deactivate farm mode
-	if (farm_mode)
-	{
+		eeprom_update_byte((uint8_t*)EEPROM_FARM_MODE, farm_mode);
+	} else if (farm_mode) {
 		no_response = true; //we need confirmation by recieving PRUSA thx
 		important_status = 8;
 		prusa_statistics(8);
@@ -1117,9 +1117,8 @@ void setup()
 		//disabled filament autoload (PFW360)
 		fsensor_autoload_set(false);
 #endif //FILAMENT_SENSOR
-          // ~ FanCheck -> on
-          if(!(eeprom_read_byte((uint8_t*)EEPROM_FAN_CHECK_ENABLED)))
-               eeprom_update_byte((unsigned char *)EEPROM_FAN_CHECK_ENABLED,true);
+		// ~ FanCheck -> on
+		eeprom_update_byte((uint8_t*)EEPROM_FAN_CHECK_ENABLED, true);
 	}
 
 #ifdef TMC2130
@@ -1441,12 +1440,11 @@ void setup()
     enable_z();
 #endif
 
-	farm_mode = eeprom_read_byte((uint8_t*)EEPROM_FARM_MODE);
-	if (farm_mode == 0xFF) farm_mode = false; //if farm_mode has not been stored to eeprom yet and farm number is set to zero or EEPROM is fresh, deactivate farm mode
-	if (farm_mode)
-	{
-		prusa_statistics(8);
-	}
+    if (farm_mode) {
+        // The farm monitoring SW may accidentally expect 
+        // 2 messages of "printer started" to consider a printer working.
+        prusa_statistics(8);
+    }
 
 	// Enable Toshiba FlashAir SD card / WiFi enahanced card.
 	card.ToshibaFlashAir_enable(eeprom_read_byte((unsigned char*)EEPROM_TOSHIBA_FLASH_AIR_COMPATIBLITY) == 1);