thebears/marlin_skr
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# This is a combination of 4 commits.

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# The first commit's message is:
SD Card Alpha Sorting

First iteration of alphabetical sorting for SD cards, both
slow+efficient and fast+rammy. Option for folders to sort first, last,
or not at all.

# This is the 2nd commit message:

Expand on More RAM concept, address minor bugs

# This is the 3rd commit message:

Improvements, more SORT_USES_MORE_RAM

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.

# This is the 4th commit message:

Completed SORT_USES_MORE_RAM implementation

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.
This commit is contained in:
Scott Lahteine
2014-11-24 14:03:20 -08:00
parent 1977b4490f
commit de725bd408
5 changed files with 237 additions and 52 deletions
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33
Marlin/cardreader.h
View File

@@ -3,7 +3,11 @@
#ifdef SDSUPPORT
#define MAX_DIR_DEPTH 10
#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};
@@ -28,7 +32,7 @@ public:
void getStatus();
void printingHasFinished();
void getfilename(const uint8_t nr);
void getfilename(const uint16_t nr);
uint16_t getnrfilenames();
void getAbsFilename(char *t);
@@ -39,6 +43,12 @@ public:
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(); }
FORCE_INLINE bool eof() { return sdpos>=filesize ;};
@@ -50,20 +60,29 @@ public:
public:
bool saving;
bool logging;
bool sdprinting ;
bool cardOK ;
char filename[13];
bool sdprinting;
bool cardOK;
char filename[FILENAME_LENGTH];
char longFilename[LONG_FILENAME_LENGTH];
bool filenameIsDir;
int lastnr; //last number of the autostart;
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
Sd2Card card;
SdVolume volume;
SdFile file;
#define SD_PROCEDURE_DEPTH 1
#define MAXPATHNAMELENGTH (13*MAX_DIR_DEPTH+MAX_DIR_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];
@@ -75,7 +94,7 @@ private:
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.
int16_t nrFiles; //counter for the files in the current directory and recycled as position counter for getting the nrFiles'th name in the directory.
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);
};