M33 LONG_FILENAME_HOST_SUPPORT

Marlin/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/Marlin_main.cpp

  *        syntax "M32 /path/filename#", or "M32 S<startpos bytes> !filename#"
  *        Call gcode file : "M32 P !filename#" and return to caller file after finishing (similar to #include).
  *        The '#' is necessary when calling from within sd files, as it stops buffer prereading
+ * M33  - Get the longname version of a path
  * M42  - Change pin status via gcode Use M42 Px Sy to set pin x to value y, when omitting Px the onboard led will be used.
  * M48  - Measure Z_Probe repeatability. M48 [P # of points] [X position] [Y position] [V_erboseness #] [E_ngage Probe] [L # of legs of travel]
  * M80  - Turn on Power Supply
     }
   }
 
+  #ifdef LONG_FILENAME_HOST_SUPPORT
+
+    /**
+     * M33: Get the long full path of a file or folder
+     *
+     * Parameters:
+     *   <dospath> Case-insensitive DOS-style path to a file or folder
+     *
+     * Example:
+     *   M33 miscel~1/armchair/armcha~1.gco
+     *
+     * Output:
+     *   /Miscellaneous/Armchair/Armchair.gcode
+     */
+    inline void gcode_M33() {
+      char *args = strchr_pointer + 4;
+      while (*args == ' ') ++args;
+      clear_asterisk(args);
+      card.printLongPath(args);
+    }
+
+  #endif
+
   /**
    * M928: Start SD Write
    */
           gcode_M30(); break;
         case 32: //M32 - Select file and start SD print
           gcode_M32(); break;
+
+        #ifdef LONG_FILENAME_HOST_SUPPORT
+          case 33: //M33 - Get the long full path to a file or folder
+            gcode_M33(); break;
+        #endif // LONG_FILENAME_HOST_SUPPORT
+
         case 928: //M928 - Start SD write
           gcode_M928(); break;
 

Marlin/cardreader.cpp

   lsDive("", root);
 }
 
+#ifdef LONG_FILENAME_HOST_SUPPORT
+
+  /**
+   * Get a long pretty path based on a DOS 8.3 path
+   */
+  void CardReader::printLongPath(char *path) {
+    lsAction = LS_GetFilename;
+
+    int i, pathLen = strlen(path);
+
+    // SERIAL_ECHOPGM("Full Path: "); SERIAL_ECHOLN(path);
+
+    // Zero out slashes to make segments
+    for (i = 0; i < pathLen; i++) if (path[i] == '/') path[i] = '\0';
+
+    SdFile diveDir = root; // start from the root for segment 1
+    for (i = 0; i < pathLen;) {
+
+      if (path[i] == '\0') i++; // move past a single nul
+
+      char *segment = &path[i]; // The segment after most slashes
+
+      // If a segment is empty (extra-slash) then exit
+      if (!*segment) break;
+
+      // Go to the next segment
+      while (path[++i]) { }
+
+      // SERIAL_ECHOPGM("Looking for segment: "); SERIAL_ECHOLN(segment);
+
+      // Find the item, setting the long filename
+      diveDir.rewind();
+      lsDive("", diveDir, segment);
+
+      // Print /LongNamePart to serial output
+      SERIAL_PROTOCOLCHAR('/');
+      SERIAL_PROTOCOL(longFilename[0] ? longFilename : "???");
+
+      // If the filename was printed then that's it
+      if (!filenameIsDir) break;
+
+      // SERIAL_ECHOPGM("Opening dir: "); SERIAL_ECHOLN(segment);
+
+      // Open the sub-item as the new dive parent
+      SdFile dir;
+      if (!dir.open(diveDir, segment, O_READ)) {
+        SERIAL_EOL;
+        SERIAL_ECHO_START;
+        SERIAL_ECHOPGM(MSG_SD_CANT_OPEN_SUBDIR);
+        SERIAL_ECHO(segment);
+        break;
+      }
+
+      diveDir.close();
+      diveDir = dir;
+
+    } // while i<pathLen
+
+    SERIAL_EOL;
+  }
+
+#endif // LONG_FILENAME_HOST_SUPPORT
+
 void CardReader::initsd() {
   cardOK = false;
   if (root.isOpen()) root.close();
     if (!cardOK) return; // fail
   }
 
-  char autoname[30];
+  char autoname[10];
   sprintf_P(autoname, PSTR("auto%i.g"), autostart_index);
   for (int8_t i = 0; i < (int8_t)strlen(autoname); i++) autoname[i] = tolower(autoname[i]);
 
   while (root.readDir(p, NULL) > 0) {
     for (int8_t i = 0; i < (int8_t)strlen((char*)p.name); i++) p.name[i] = tolower(p.name[i]);
     if (p.name[9] != '~' && strncmp((char*)p.name, autoname, 5) == 0) {
-      char cmd[30];
+      char cmd[4 + (FILENAME_LENGTH + 1) * MAX_DIR_DEPTH + 2];
       sprintf_P(cmd, PSTR("M23 %s"), autoname);
       enqueuecommand(cmd);
       enqueuecommands_P(PSTR("M24"));

Marlin/cardreader.h

   void getStatus();
   void printingHasFinished();
 
+  #ifdef LONG_FILENAME_HOST_SUPPORT
+    void printLongPath(char *path);
+  #endif
+
   void getfilename(uint16_t nr, const char* const match=NULL);
   uint16_t getnrfilenames();
 

Marlin/configurator/config/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/example_configurations/Felix/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/example_configurations/Hephestos/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/example_configurations/K8200/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/example_configurations/SCARA/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/example_configurations/WITBOX/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/example_configurations/delta/biv2.5/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/example_configurations/delta/generic/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/example_configurations/makibox/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

     //#define PROGRESS_MSG_ONCE
   #endif
 
+  // This allows hosts to request long names for files and folders with M33
+  //#define LONG_FILENAME_HOST_SUPPORT
+
 #endif // SDSUPPORT
 
 // @section more