More fixes that were extracted from #2405

Firmware/Marlin.h

@@ -350,10 +350,6 @@ extern unsigned long t_fan_rising_edge;
 extern bool mesh_bed_leveling_flag;
 extern bool mesh_bed_run_from_menu;
 
-extern bool sortAlpha;
-
-extern char dir_names[][9];
-
 extern int8_t lcd_change_fil_state;
 // save/restore printing
 extern bool saved_printing;

Firmware/Marlin_main.cpp

@@ -228,10 +228,6 @@ bool fan_state[2];
 int fan_edge_counter[2];
 int fan_speed[2];
 
-char dir_names[MAX_DIR_DEPTH][9];
-
-bool sortAlpha = false;
-
 
 float extruder_multiplier[EXTRUDERS] = {1.0
   #if EXTRUDERS > 1
@@ -11281,8 +11277,8 @@ void restore_print_from_eeprom(bool mbl_was_active) {
 		}
 		dir_name[8] = '\0';
 		MYSERIAL.println(dir_name);
-		strcpy(dir_names[i], dir_name);
-		card.chdir(dir_name);
+		// strcpy(dir_names[i], dir_name);
+		card.chdir(dir_name, false);
 	}
 
 	for (int i = 0; i < 8; i++) {

Firmware/cardreader.cpp

@@ -32,6 +32,7 @@ CardReader::CardReader()
    workDirDepth = 0;
    file_subcall_ctr=0;
    memset(workDirParents, 0, sizeof(workDirParents));
+   presort_flag = false;
 
    autostart_stilltocheck=true; //the SD start is delayed, because otherwise the serial cannot answer fast enough to make contact with the host software.
    lastnr=0;
@@ -69,12 +70,15 @@ char *createFilename(char *buffer,const dir_t &p) //buffer>12characters
 +*/
 
 void CardReader::lsDive(const char *prepend, SdFile parent, const char * const match/*=NULL*/) {
+	static uint8_t recursionCnt = 0;
 	dir_t p;
 	uint8_t cnt = 0;
 		// Read the next entry from a directory
 		while (parent.readDir(p, longFilename) > 0) {
-			// If the entry is a directory and the action is LS_SerialPrint
-			if (DIR_IS_SUBDIR(&p) && lsAction != LS_Count && lsAction != LS_GetFilename) {
+			if (recursionCnt >= MAX_DIR_DEPTH)
+				return;
+			else if (DIR_IS_SUBDIR(&p) && lsAction != LS_Count && lsAction != LS_GetFilename) { // If the entry is a directory and the action is LS_SerialPrint
+				recursionCnt++;
 				// Get the short name for the item, which we know is a folder
 				char lfilename[FILENAME_LENGTH];
 				createFilename(lfilename, p);
@@ -108,6 +112,7 @@ void CardReader::lsDive(const char *prepend, SdFile parent, const char * const m
 				
 				if (lsAction == LS_SerialPrint_LFN)
 					puts_P(PSTR("DIR_EXIT"));
+				recursionCnt--;
 			}
 			else {
 				uint8_t pn0 = p.name[0];
@@ -241,18 +246,18 @@ void CardReader::initsd()
   
 }
 
-void CardReader::setroot()
+void CardReader::setroot(bool doPresort)
 {
-  /*if(!workDir.openRoot(&volume))
-  {
-    SERIAL_ECHOLNPGM(MSG_SD_WORKDIR_FAIL);
-  }*/
   workDir=root;
+  workDirDepth = 0;
   
   curDir=&workDir;
-  #ifdef SDCARD_SORT_ALPHA
-	  presort();
-  #endif
+#ifdef SDCARD_SORT_ALPHA
+	if (doPresort)
+		presort();
+	else
+		presort_flag = true;
+#endif
 }
 void CardReader::release()
 {
@@ -317,19 +322,17 @@ void CardReader::getAbsFilename(char *t)
  * @param[in,out] fileName
  *  expects file name including path
  *  in case of absolute path, file name without path is returned
- * @param[in,out] dir SdFile object to operate with,
- *  in case of absolute path, curDir is modified to point to dir,
- *  so it is not possible to create on stack inside this function,
- *  as curDir would point to destroyed object.
  */
-void CardReader::diveSubfolder (const char *fileName, SdFile& dir)
+bool CardReader::diveSubfolder (const char *&fileName)
 {
     curDir=&root;
-    if (!fileName) return;
+    if (!fileName)
+        return 1;
 
     const char *dirname_start, *dirname_end;
     if (fileName[0] == '/') // absolute path
     {
+        setroot(false);
         dirname_start = fileName + 1;
         while (*dirname_start)
         {
@@ -344,19 +347,10 @@ void CardReader::diveSubfolder (const char *fileName, SdFile& dir)
                 strncpy(subdirname, dirname_start, len);
                 subdirname[len] = 0;
                 SERIAL_ECHOLN(subdirname);
-                if (!dir.open(curDir, subdirname, O_READ))
-                {
-                    SERIAL_PROTOCOLRPGM(MSG_SD_OPEN_FILE_FAIL);
-                    SERIAL_PROTOCOL(subdirname);
-                    SERIAL_PROTOCOLLN('.');
-                    return;
-                }
-                else
-                {
-                    //SERIAL_ECHOLN("dive ok");
-                }
-
-                curDir = &dir;
+                if (!chdir(subdirname, false))
+                    return 0;
+
+                curDir = &workDir;
                 dirname_start = dirname_end + 1;
             }
             else // the reminder after all /fsa/fdsa/ is the filename
@@ -373,6 +367,7 @@ void CardReader::diveSubfolder (const char *fileName, SdFile& dir)
     {
         curDir = &workDir;
     }
+    return 1;
 }
 
 void CardReader::openFile(const char* name,bool read, bool replace_current/*=true*/)
@@ -423,9 +418,9 @@ void CardReader::openFile(const char* name,bool read, bool replace_current/*=tru
   }
   sdprinting = false;
 
-  SdFile myDir;
   const char *fname=name;
-  diveSubfolder(fname,myDir);
+  if (!diveSubfolder(fname))
+    return;
 
   if(read)
   {
@@ -438,10 +433,9 @@ void CardReader::openFile(const char* name,bool read, bool replace_current/*=tru
       SERIAL_PROTOCOLLN(filesize);
       sdpos = 0;
       
-      SERIAL_PROTOCOLLNRPGM(_N("File selected"));////MSG_SD_FILE_SELECTED
+      SERIAL_PROTOCOLLNRPGM(MSG_FILE_SELECTED);
+      lcd_setstatuspgm(MSG_FILE_SELECTED);
       getfilename(0, fname);
-      lcd_setstatus(longFilename[0] ? longFilename : fname);
-      lcd_setstatuspgm(PSTR("SD-PRINTING"));
     }
     else
     {
@@ -475,9 +469,9 @@ void CardReader::removeFile(const char* name)
     file.close();
     sdprinting = false;
 
-    SdFile myDir;
     const char *fname=name;
-    diveSubfolder(fname,myDir);
+    if (!diveSubfolder(fname))
+      return;
 
     if (file.remove(curDir, fname)) 
     {
@@ -670,7 +664,7 @@ uint16_t CardReader::getnrfilenames()
   return nrFiles;
 }
 
-void CardReader::chdir(const char * relpath)
+bool CardReader::chdir(const char * relpath, bool doPresort)
 {
   SdFile newfile;
   SdFile *parent=&root;
@@ -678,23 +672,32 @@ void CardReader::chdir(const char * relpath)
   if(workDir.isOpen())
     parent=&workDir;
   
-  if(!newfile.open(*parent,relpath, O_READ))
+  if(!newfile.open(*parent,relpath, O_READ) || ((workDirDepth + 1) >= MAX_DIR_DEPTH))
   {
    SERIAL_ECHO_START;
    SERIAL_ECHORPGM(_n("Cannot enter subdir: "));////MSG_SD_CANT_ENTER_SUBDIR
    SERIAL_ECHOLN(relpath);
+   return 0;
   }
   else
   {
+    strcpy(dir_names[workDirDepth], relpath);
+    puts(relpath);
+
     if (workDirDepth < MAX_DIR_DEPTH) {
       for (int d = ++workDirDepth; d--;)
         workDirParents[d+1] = workDirParents[d];
       workDirParents[0]=*parent;
     }
     workDir=newfile;
-	#ifdef SDCARD_SORT_ALPHA
+
+#ifdef SDCARD_SORT_ALPHA
+	if (doPresort)
 		presort();
-	#endif
+	else
+		presort_flag = true;
+#endif
+	return 1;
   }
 }
 

Firmware/cardreader.h

@@ -39,9 +39,9 @@ public:
   
 
   void ls(bool printLFN);
-  void chdir(const char * relpath);
+  bool chdir(const char * relpath, bool doPresort);
   void updir();
-  void setroot();
+  void setroot(bool doPresort);
 
   #ifdef SDCARD_SORT_ALPHA
      void presort();
@@ -82,6 +82,10 @@ public:
   char longFilename[LONG_FILENAME_LENGTH];
   bool filenameIsDir;
   int lastnr; //last number of the autostart;
+#ifdef SDCARD_SORT_ALPHA
+  bool presort_flag;
+  char dir_names[MAX_DIR_DEPTH][9];
+#endif // SDCARD_SORT_ALPHA
 private:
   SdFile root,*curDir,workDir,workDirParents[MAX_DIR_DEPTH];
   uint16_t workDirDepth;
@@ -155,7 +159,7 @@ private:
   int16_t nrFiles; //counter for the files in the current directory and recycled as position counter for getting the nrFiles'th name in the directory.
   char* diveDirName;
 
-  void diveSubfolder (const char *fileName, SdFile& dir);
+  bool diveSubfolder (const char *&fileName);
   void lsDive(const char *prepend, SdFile parent, const char * const match=NULL);
 #ifdef SDCARD_SORT_ALPHA
   void flush_presort();

Firmware/messages.c

@@ -197,3 +197,4 @@ const char MSG_M112_KILL[] PROGMEM_N1 = "M112 called. Emergency Stop."; ////c=20
 const char MSG_ADVANCE_K[] PROGMEM_N1 = "Advance K:"; ////c=13
 const char MSG_POWERPANIC_DETECTED[] PROGMEM_N1 = "POWER PANIC DETECTED"; ////c=20
 const char MSG_LCD_STATUS_CHANGED[] PROGMEM_N1 = "LCD status changed";
+const char MSG_FILE_SELECTED[] PROGMEM_N1 = "File selected"; ////c=20

Firmware/messages.h

@@ -197,6 +197,7 @@ extern const char MSG_M112_KILL[];
 extern const char MSG_ADVANCE_K[];
 extern const char MSG_POWERPANIC_DETECTED[];
 extern const char MSG_LCD_STATUS_CHANGED[];
+extern const char MSG_FILE_SELECTED[];
 
 #if defined(__cplusplus)
 }

Firmware/ultralcd.cpp

@@ -4317,7 +4317,7 @@ static void lcd_sort_type_set() {
 		default: sdSort = SD_SORT_TIME;
 	}
 	eeprom_update_byte((unsigned char *)EEPROM_SD_SORT, sdSort);
-	presort_flag = true;
+	card.presort_flag = true;
 }
 #endif //SDCARD_SORT_ALPHA
 
@@ -8548,7 +8548,7 @@ static void menu_action_sdfile(const char* filename)
 
   for (uint_least8_t i = 0; i < depth; i++) {
 	  for (uint_least8_t j = 0; j < 8; j++) {
-		  eeprom_write_byte((uint8_t*)EEPROM_DIRS + j + 8 * i, dir_names[i][j]);
+		  eeprom_write_byte((uint8_t*)EEPROM_DIRS + j + 8 * i, card.dir_names[i][j]);
 	  }
   }
   
@@ -8566,12 +8566,8 @@ static void menu_action_sdfile(const char* filename)
 
 void menu_action_sddirectory(const char* filename)
 {
-	uint8_t depth = (uint8_t)card.getWorkDirDepth();
-
-	strcpy(dir_names[depth], filename);
-	MYSERIAL.println(dir_names[depth]);
-  card.chdir(filename);
-  lcd_encoder = 0;
+	card.chdir(filename, true);
+	lcd_encoder = 0;
 }
 
 /** LCD API **/