vtoycli/fat_io_lib/include/fat_misc.h

   1 #ifndef __FAT_MISC_H__
   2 #define __FAT_MISC_H__
   3
   4 #include "fat_defs.h"
   5 #include "fat_opts.h"
   6
   7 //-----------------------------------------------------------------------------
   8 // Defines
   9 //-----------------------------------------------------------------------------
  10 #define MAX_LONGFILENAME_ENTRIES    20
  11 #define MAX_LFN_ENTRY_LENGTH        13
  12
  13 //-----------------------------------------------------------------------------
  14 // Macros
  15 //-----------------------------------------------------------------------------
  16 #define GET_32BIT_WORD(buffer, location)    ( ((uint32)buffer[location+3]<<24) + ((uint32)buffer[location+2]<<16) + ((uint32)buffer[location+1]<<8) + (uint32)buffer[location+0] )
  17 #define GET_16BIT_WORD(buffer, location)    ( ((uint16)buffer[location+1]<<8) + (uint16)buffer[location+0] )
  18
  19 #define SET_32BIT_WORD(buffer, location, value)    { buffer[location+0] = (uint8)((value)&0xFF); \
  20                                                   buffer[location+1] = (uint8)((value>>8)&0xFF); \
  21                                                   buffer[location+2] = (uint8)((value>>16)&0xFF); \
  22                                                   buffer[location+3] = (uint8)((value>>24)&0xFF); }
  23
  24 #define SET_16BIT_WORD(buffer, location, value)    { buffer[location+0] = (uint8)((value)&0xFF); \
  25                                                   buffer[location+1] = (uint8)((value>>8)&0xFF); }
  26
  27 //-----------------------------------------------------------------------------
  28 // Structures
  29 //-----------------------------------------------------------------------------
  30 struct lfn_cache
  31 {
  32 #if FATFS_INC_LFN_SUPPORT
  33     // Long File Name Structure (max 260 LFN length)
  34     uint8 String[MAX_LONGFILENAME_ENTRIES][MAX_LFN_ENTRY_LENGTH];
  35     uint8 Null;
  36 #endif
  37     uint8 no_of_strings;
  38 };
  39
  40 //-----------------------------------------------------------------------------
  41 // Prototypes
  42 //-----------------------------------------------------------------------------
  43 void    fatfs_lfn_cache_init(struct lfn_cache *lfn, int wipeTable);
  44 void    fatfs_lfn_cache_entry(struct lfn_cache *lfn, uint8 *entryBuffer);
  45 char*   fatfs_lfn_cache_get(struct lfn_cache *lfn);
  46 int     fatfs_entry_lfn_text(struct fat_dir_entry *entry);
  47 int     fatfs_entry_lfn_invalid(struct fat_dir_entry *entry);
  48 int     fatfs_entry_lfn_exists(struct lfn_cache *lfn, struct fat_dir_entry *entry);
  49 int     fatfs_entry_sfn_only(struct fat_dir_entry *entry);
  50 int     fatfs_entry_is_dir(struct fat_dir_entry *entry);
  51 int     fatfs_entry_is_file(struct fat_dir_entry *entry);
  52 int     fatfs_lfn_entries_required(char *filename);
  53 void    fatfs_filename_to_lfn(char *filename, uint8 *buffer, int entry, uint8 sfnChk);
  54 void    fatfs_sfn_create_entry(char *shortfilename, uint32 size, uint32 startCluster, struct fat_dir_entry *entry, int dir);
  55 int     fatfs_lfn_create_sfn(char *sfn_output, char *filename);
  56 int     fatfs_lfn_generate_tail(char *sfn_output, char *sfn_input, uint32 tailNum);
  57 void    fatfs_convert_from_fat_time(uint16 fat_time, int *hours, int *minutes, int *seconds);
  58 void    fatfs_convert_from_fat_date(uint16 fat_date, int *day, int *month, int *year);
  59 uint16  fatfs_convert_to_fat_time(int hours, int minutes, int seconds);
  60 uint16  fatfs_convert_to_fat_date(int day, int month, int year);
  61 void    fatfs_print_sector(uint32 sector, uint8 *data);
  62
  63 #endif