cf749dbeda
For the MORE_RAM option we need to buffer both the short and long names, even though long names are sometimes redundant. Worst case, all the names are max length. We can save some RAM by not storing these. We could save more RAM by only storing the visible part of the long name.
121 lines
3.6 KiB
C++
121 lines
3.6 KiB
C++
#ifndef CARDREADER_H
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#define CARDREADER_H
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#ifdef SDSUPPORT
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#define MAX_DIR_DEPTH 10 // Maximum folder depth
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#define SORT_USES_RAM false // Buffer while sorting, else re-read from SD
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#define SORT_USES_MORE_RAM false // Always keep the directory in RAM
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#define SORT_LIMIT 64 // Maximum number of sorted items
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#define FOLDER_SORTING -1 // -1=above 0=none 1=below
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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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{
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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 replace_current=true);
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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 startFileprint();
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void pauseSDPrint();
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void getStatus();
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void printingHasFinished();
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void getfilename(const uint16_t nr);
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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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#ifdef SDCARD_SORT_ALPHA
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void presort();
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void flush_presort();
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void getfilename_sorted(const uint16_t nr);
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#endif
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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(){if(!isFileOpen()) return 0; if(filesize) return sdpos/((filesize+99)/100); else return 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;
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bool logging;
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bool sdprinting;
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bool cardOK;
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char filename[FILENAME_LENGTH];
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char longFilename[LONG_FILENAME_LENGTH];
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bool filenameIsDir;
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int lastnr; //last number of the autostart;
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private:
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SdFile root,*curDir,workDir,workDirParents[MAX_DIR_DEPTH];
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uint16_t workDirDepth;
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#ifdef SDCARD_SORT_ALPHA
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uint16_t sort_count;
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uint8_t *sort_order;
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#if SORT_USES_MORE_RAM
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char **sortshort;
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char **sortnames;
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uint8_t *isDir;
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#endif
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#endif
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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 filenames[SD_PROCEDURE_DEPTH][MAXPATHNAMELENGTH];
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uint32_t filesize;
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//int16_t n;
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unsigned long autostart_atmillis;
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uint32_t sdpos ;
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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);
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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 (SDCARDDETECT > -1)
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# ifdef SDCARDDETECTINVERTED
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# define IS_SD_INSERTED (READ(SDCARDDETECT)!=0)
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# else
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# define IS_SD_INSERTED (READ(SDCARDDETECT)==0)
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# endif //SDCARDTETECTINVERTED
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#else
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//If we don't have a card detect line, aways asume 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
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