725ba8d01e
With this option, always keeps the dir in RAM, doubling as a cache for getfilename. A board with only 8K of SRAM is cutting it very close.
120 lines
3.5 KiB
C++
120 lines
3.5 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 **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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