Firmware/Marlin/cardreader.h

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#ifndef CARDREADER_H
#define CARDREADER_H
#ifdef SDSUPPORT
#define MAX_DIR_DEPTH 10 // Maximum folder depth
#define SORT_USES_RAM false // Buffer while sorting, else re-read from SD
#define SORT_USES_MORE_RAM false // Always keep the directory in RAM
#define SORT_LIMIT 64 // Maximum number of sorted items
#define FOLDER_SORTING -1 // -1=above 0=none 1=below
#include "SdFile.h"
enum LsAction {LS_SerialPrint,LS_Count,LS_GetFilename};
class CardReader
{
public:
CardReader();
void initsd();
void write_command(char *buf);
//files auto[0-9].g on the sd card are performed in a row
//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
void checkautostart(bool x);
void openFile(char* name,bool read,bool replace_current=true);
void openLogFile(char* name);
void removeFile(char* name);
void closefile(bool store_location=false);
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void release();
void startFileprint();
void pauseSDPrint();
void getStatus();
void printingHasFinished();
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void getfilename(const uint16_t nr);
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);
void updir();
void setroot();
#ifdef SDCARD_SORT_ALPHA
void presort();
void flush_presort();
void getfilename_sorted(const uint16_t nr);
#endif
FORCE_INLINE bool isFileOpen() { return file.isOpen(); }
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FORCE_INLINE bool eof() { return sdpos>=filesize ;};
FORCE_INLINE int16_t get() { sdpos = file.curPosition();return (int16_t)file.read();};
FORCE_INLINE void setIndex(long index) {sdpos = index;file.seekSet(index);};
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;};
public:
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bool saving;
bool logging;
bool sdprinting;
bool cardOK;
char filename[FILENAME_LENGTH];
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char longFilename[LONG_FILENAME_LENGTH];
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bool filenameIsDir;
int lastnr; //last number of the autostart;
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private:
SdFile root,*curDir,workDir,workDirParents[MAX_DIR_DEPTH];
uint16_t workDirDepth;
#ifdef SDCARD_SORT_ALPHA
uint16_t sort_count;
uint8_t *sort_order;
#if SORT_USES_MORE_RAM
char **sortshort;
char **sortnames;
uint8_t *isDir;
#endif
#endif
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Sd2Card card;
SdVolume volume;
SdFile file;
#define SD_PROCEDURE_DEPTH 1
#define MAXPATHNAMELENGTH (FILENAME_LENGTH*MAX_DIR_DEPTH+MAX_DIR_DEPTH+1)
uint8_t file_subcall_ctr;
uint32_t filespos[SD_PROCEDURE_DEPTH];
char filenames[SD_PROCEDURE_DEPTH][MAXPATHNAMELENGTH];
uint32_t filesize;
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//int16_t n;
unsigned long autostart_atmillis;
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.
LsAction lsAction; //stored for recursion.
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.
char* diveDirName;
void lsDive(const char *prepend,SdFile parent);
};
extern CardReader card;
#define IS_SD_PRINTING (card.sdprinting)
#if (SDCARDDETECT > -1)
# ifdef SDCARDDETECTINVERTED
# define IS_SD_INSERTED (READ(SDCARDDETECT)!=0)
# else
# define IS_SD_INSERTED (READ(SDCARDDETECT)==0)
# endif //SDCARDTETECTINVERTED
#else
//If we don't have a card detect line, aways asume the card is inserted
# define IS_SD_INSERTED true
#endif
#else
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#define IS_SD_PRINTING (false)
#endif //SDSUPPORT
#endif