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							125 lines
						
					
					
						
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							125 lines
						
					
					
						
							4.0 KiB
						
					
					
				/**
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 * Marlin 3D Printer Firmware
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 * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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 *
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 * Based on Sprinter and grbl.
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 * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
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 */
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#ifndef CARDREADER_H
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#define CARDREADER_H
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#if ENABLED(SDSUPPORT)
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#define MAX_DIR_DEPTH 10          // Maximum folder depth
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#include "SdFile.h"
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enum LsAction { LS_SerialPrint, LS_Count, LS_GetFilename };
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class CardReader {
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public:
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  CardReader();
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  void initsd();
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  void write_command(char *buf);
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  //files auto[0-9].g on the sd card are performed in a row
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  //this is to delay autostart and hence the initialisaiton of the sd card to some seconds after the normal init, so the device is available quick after a reset
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  void checkautostart(bool x);
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  void openFile(char* name, bool read, bool push_current=false);
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  void openLogFile(char* name);
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  void removeFile(char* name);
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  void closefile(bool store_location=false);
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  void release();
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  void openAndPrintFile(const char *name);
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  void startFileprint();
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  void pauseSDPrint();
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  void getStatus();
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  void printingHasFinished();
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  #if ENABLED(LONG_FILENAME_HOST_SUPPORT)
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    void printLongPath(char *path);
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  #endif
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  void getfilename(uint16_t nr, const char* const match=NULL);
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  uint16_t getnrfilenames();
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  void getAbsFilename(char *t);
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  void ls();
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  void chdir(const char *relpath);
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  void updir();
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  void setroot();
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  FORCE_INLINE bool isFileOpen() { return file.isOpen(); }
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  FORCE_INLINE bool eof() { return sdpos >= filesize; }
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  FORCE_INLINE int16_t get() { sdpos = file.curPosition(); return (int16_t)file.read(); }
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  FORCE_INLINE void setIndex(long index) { sdpos = index; file.seekSet(index); }
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  FORCE_INLINE uint8_t percentDone() { return (isFileOpen() && filesize) ? sdpos / ((filesize + 99) / 100) : 0; }
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  FORCE_INLINE char* getWorkDirName() { workDir.getFilename(filename); return filename; }
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public:
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  bool saving, logging, sdprinting, cardOK, filenameIsDir;
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  char filename[FILENAME_LENGTH], longFilename[LONG_FILENAME_LENGTH];
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  int autostart_index;
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private:
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  SdFile root, *curDir, workDir, workDirParents[MAX_DIR_DEPTH];
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  uint8_t workDirDepth;
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  Sd2Card card;
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  SdVolume volume;
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  SdFile file;
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  #define SD_PROCEDURE_DEPTH 1
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  #define MAXPATHNAMELENGTH (FILENAME_LENGTH*MAX_DIR_DEPTH + MAX_DIR_DEPTH + 1)
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  uint8_t file_subcall_ctr;
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  uint32_t filespos[SD_PROCEDURE_DEPTH];
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  char proc_filenames[SD_PROCEDURE_DEPTH][MAXPATHNAMELENGTH];
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  uint32_t filesize;
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  uint32_t sdpos;
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  millis_t next_autostart_ms;
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  bool autostart_stilltocheck; //the sd start is delayed, because otherwise the serial cannot answer fast enought to make contact with the hostsoftware.
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  LsAction lsAction; //stored for recursion.
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  uint16_t nrFiles; //counter for the files in the current directory and recycled as position counter for getting the nrFiles'th name in the directory.
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  char* diveDirName;
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  void lsDive(const char *prepend, SdFile parent, const char * const match=NULL);
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};
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extern CardReader card;
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#define IS_SD_PRINTING (card.sdprinting)
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#if PIN_EXISTS(SD_DETECT)
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  #if ENABLED(SD_DETECT_INVERTED)
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    #define IS_SD_INSERTED (READ(SD_DETECT_PIN) != 0)
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  #else
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    #define IS_SD_INSERTED (READ(SD_DETECT_PIN) == 0)
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  #endif
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#else
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  //No card detect line? Assume the card is inserted.
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  #define IS_SD_INSERTED true
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#endif
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#else
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#define IS_SD_PRINTING (false)
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#endif //SDSUPPORT
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#endif //__CARDREADER_H
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