first working version

Firmware/Configuration.h

@@ -77,10 +77,8 @@
 #define EEPROM_FERROR_COUNT      (EEPROM_UVLO_MESH_BED_LEVELING-16)
 // Power loss errors
 #define EEPROM_POWER_COUNT       (EEPROM_UVLO_MESH_BED_LEVELING-17)
-#define UVLO_DIR_LEVEL        (EEPROM_POWER_COUNT-1)
-#define UVLO_FIRST_LEVEL_FOLDER  (EEPROM_FOLDER_LEVEL-8)
-#define UVLO_SECOND_LEVEL_FOLDER  (EEPROM_FIRST_LEVEL-8)
-#define UVLO_THIRD_LEVEL_FOLDER  (EEPROM_SECOND_LEVEL-8)
+#define EEPROM_DIR_DEPTH        (EEPROM_POWER_COUNT-1)
+#define EEPROM_DIRS  (EEPROM_DIR_DEPTH-80) //8 chars for each dir name, max 10 levels
 
 //TMC2130 configuration
 #define EEPROM_TMC_AXIS_SIZE  //axis configuration block size

Firmware/Marlin.h

@@ -350,6 +350,8 @@ extern bool mesh_bed_run_from_menu;
 
 extern float distance_from_min[2];
 
+extern char dir_names[3][9];
+
 extern void calculate_volumetric_multipliers();
 
 // Similar to the default Arduino delay function, 

Firmware/Marlin_main.cpp

@@ -320,6 +320,7 @@ bool fan_state[2];
 int fan_edge_counter[2];
 int fan_speed[2];
 
+char dir_names[3][9];
 
 bool volumetric_enabled = false;
 float filament_size[EXTRUDERS] = { DEFAULT_NOMINAL_FILAMENT_DIA
@@ -7272,11 +7273,27 @@ void restore_print_from_eeprom() {
 	char cmd[30];
 	char* c;
 	char filename[13];
+	uint8_t depth = 0;
+	char dir_name[9];
 
 	fan_speed_rec = eeprom_read_byte((uint8_t*)EEPROM_UVLO_FAN_SPEED);
 	EEPROM_read_B(EEPROM_UVLO_FEEDRATE, &feedrate_rec);
 	SERIAL_ECHOPGM("Feedrate:");
 	MYSERIAL.println(feedrate_rec);
+
+	depth = eeprom_read_byte((uint8_t*)EEPROM_DIR_DEPTH);
+	
+	MYSERIAL.println(int(depth));
+	for (int i = 0; i < depth; i++) {
+		for (int j = 0; j < 8; j++) {
+			dir_name[j] = eeprom_read_byte((uint8_t*)EEPROM_DIRS + j + 8 * i);
+			
+		}
+		dir_name[8] = '\0';
+		MYSERIAL.println(dir_name);
+		card.chdir(dir_name);
+	}
+
 	for (int i = 0; i < 8; i++) {
 		filename[i] = eeprom_read_byte((uint8_t*)EEPROM_FILENAME + i);
 		

Firmware/SdBaseFile.cpp

@@ -284,7 +284,6 @@ bool SdBaseFile::getFilename(char* name) {
     name[0] = '/';
     name[1] = '\0';
     return true;
-	dir_level = 0;
   }
   // cache entry
   dir_t* p = cacheDirEntry(SdVolume::CACHE_FOR_READ);

Firmware/cardreader.cpp

@@ -233,6 +233,15 @@ void CardReader::openLogFile(char* name)
   openFile(name, false);
 }
 
+void CardReader::getDirName(char* name, uint8_t level)
+{	
+		workDirParents[level].getFilename(name);
+}
+
+uint16_t CardReader::getWorkDirDepth() {
+	return workDirDepth;
+}
+
 void CardReader::getAbsFilename(char *t)
 {
   uint8_t cnt=0;
@@ -635,7 +644,7 @@ void CardReader::updir()
   {
     --workDirDepth;
     workDir = workDirParents[0];
-    int d;
+	int d;
     for (int d = 0; d < workDirDepth; d++)
       workDirParents[d] = workDirParents[d+1];
   }

Firmware/cardreader.h

@@ -33,6 +33,8 @@ public:
   uint16_t getnrfilenames();
   
   void getAbsFilename(char *t);
+  void getDirName(char* name, uint8_t level);
+  uint16_t getWorkDirDepth();
   
 
   void ls();

Firmware/ultralcd.cpp

@@ -6131,12 +6131,33 @@ static void menu_action_sdfile(const char* filename, char* longFilename)
   for (int i = 0; i < 8; i++) {
 	  eeprom_write_byte((uint8_t*)EEPROM_FILENAME + i, filename[i]);
   }
+
+  uint8_t depth = (uint8_t)card.getWorkDirDepth();
+
+  char dir_name[9];
+
+  for (uint8_t i = 0; i < depth; i++) {
+//	  card.getDirName(dir_name, i + 1);
+	  MYSERIAL.println(dir_name);
+	  for (int j = 0; j < 8; j++) {
+		  eeprom_write_byte((uint8_t*)EEPROM_DIRS + j + 8*i, dir_names[i][j]);
+	  }
+
+  }
+  //MYSERIAL.println(int(depth));
+  eeprom_write_byte((uint8_t*)EEPROM_DIR_DEPTH, depth);
+
   enquecommand_P(PSTR("M24"));
   lcd_return_to_status();
 }
 static void menu_action_sddirectory(const char* filename, char* longFilename)
 {
 	MYSERIAL.println(filename);
+
+	uint8_t depth = (uint8_t)card.getWorkDirDepth();
+
+	strcpy(dir_names[depth], filename);
+	MYSERIAL.println(dir_names[depth]);
   card.chdir(filename);
   encoderPosition = 0;
 }