コード例 #1
0
ファイル: pff.c プロジェクト: Bylos/neurometh_msp430fr5969
static
FRESULT dir_find (
	DIR *dj,		/* Pointer to the directory object linked to the file name */
	BYTE *dir		/* 32-byte working buffer */
)
{
	FRESULT res;
	BYTE c;


	res = dir_rewind(dj);			/* Rewind directory object */
	if (res != FR_OK) return res;

	do {
		res = disk_readp(dir, dj->sect, (dj->index % 16) * 32, 32)	/* Read an entry */
			? FR_DISK_ERR : FR_OK;
		if (res != FR_OK) break;
		c = dir[DIR_Name];	/* First character */
		if (c == 0) { res = FR_NO_FILE; break; }	/* Reached to end of table */
		if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
			break;
		res = dir_next(dj);					/* Next entry */
	} while (res == FR_OK);

	return res;
}
コード例 #2
0
ファイル: pff.c プロジェクト: Bylos/neurometh_msp430fr5969
static
FRESULT follow_path (	/* FR_OK(0): successful, !=0: error code */
	DIR *dj,			/* Directory object to return last directory and found object */
	BYTE *dir,			/* 32-byte working buffer */
	const char *path	/* Full-path string to find a file or directory */
)
{
	FRESULT res;


	while (*path == ' ') path++;		/* Strip leading spaces */
	if (*path == '/') path++;			/* Strip heading separator if exist */
	dj->sclust = 0;						/* Set start directory (always root dir) */

	if ((BYTE)*path < ' ') {			/* Null path means the root directory */
		res = dir_rewind(dj);
		dir[0] = 0;

	} else {							/* Follow path */
		for (;;) {
			res = create_name(dj, &path);	/* Get a segment */
			if (res != FR_OK) break;
			res = dir_find(dj, dir);		/* Find it */
			if (res != FR_OK) break;		/* Could not find the object */
			if (dj->fn[11]) break;			/* Last segment match. Function completed. */
			if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow path because it is a file */
				res = FR_NO_FILE; break;
			}
			dj->sclust = get_clust(dir);	/* Follow next */
		}
	}

	return res;
}
コード例 #3
0
ファイル: pff.c プロジェクト: Bylos/neurometh_msp430fr5969
FRESULT pf_opendir (
	DIR *dj,			/* Pointer to directory object to create */
	const char *path	/* Pointer to the directory path */
)
{
	FRESULT res;
	BYTE sp[12], dir[32];
	FATFS *fs = FatFs;


	if (!fs) {				/* Check file system */
		res = FR_NOT_ENABLED;
	} else {
		dj->fn = sp;
		res = follow_path(dj, dir, path);		/* Follow the path to the directory */
		if (res == FR_OK) {						/* Follow completed */
			if (dir[0]) {						/* It is not the root dir */
				if (dir[DIR_Attr] & AM_DIR)		/* The object is a directory */
					dj->sclust = get_clust(dir);
				else							/* The object is not a directory */
					res = FR_NO_FILE;
			}
			if (res == FR_OK)
				res = dir_rewind(dj);			/* Rewind dir */
		}
	}

	return res;
}
コード例 #4
0
ファイル: pff.c プロジェクト: Bylos/neurometh_msp430fr5969
FRESULT pf_readdir (
	DIR *dj,			/* Pointer to the open directory object */
	FILINFO *fno		/* Pointer to file information to return */
)
{
	FRESULT res;
	BYTE sp[12], dir[32];
	FATFS *fs = FatFs;


	if (!fs) {				/* Check file system */
		res = FR_NOT_ENABLED;
	} else {
		dj->fn = sp;
		if (!fno) {
			res = dir_rewind(dj);
		} else {
			res = dir_read(dj, dir);	/* Get current directory item */
			if (res == FR_NO_FILE) res = FR_OK;
			if (res == FR_OK) {				/* A valid entry is found */
				get_fileinfo(dj, dir, fno);	/* Get the object information */
				res = dir_next(dj);			/* Increment read index for next */
				if (res == FR_NO_FILE) res = FR_OK;
			}
		}
	}

	return res;
}
コード例 #5
0
ファイル: pff.c プロジェクト: bsmr-multicopter/mbtx
static
FRESULT dir_find (
	DIR *dj,		/* Pointer to the directory object linked to the file name */
	BYTE *dir		/* 32-byte working buffer */
)
{
	FRESULT res;
	BYTE c;


	res = dir_rewind(dj);			/* Rewind directory object */
	if (res != FR_OK) return res;

	do {
		if ( (dj->index & 7) == 0 )
		{ // Need to read data
			res = disk_readp( Abuff.DirBuffer, dj->sect, (WORD)((dj->index & 8) * 32), 256)	/* Read half a sector */
				? FR_DISK_ERR : FR_OK;
		}
		else
		{
			res = FR_OK ;
		}
		if (res != FR_OK) break;
		memcpy( dir, &Abuff.DirBuffer[((dj->index % 8) * 32)], 32 ) ;
		c = dir[DIR_Name];	/* First character */
		if (c == 0) { res = FR_NO_FILE; break; }	/* Reached to end of table */
		if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
			break;
		res = dir_next(dj);					/* Next entry */
	} while (res == FR_OK);

	return res;
}
コード例 #6
0
ファイル: pff.c プロジェクト: EgoIncarnate/mist-board
FRESULT pf_readdir (
	DIR *dj,			/* Pointer to the open directory object */
	FILINFO *fno		/* Pointer to file information to return */
)
{
	FRESULT res;
	BYTE sp[12], dir[32];
	FATFS *fs = FatFs;


	if (!fs) {				/* Check file system */
		res = FR_NOT_ENABLED;
	} else {
		dj->fn = sp;
		if (!fno) {
			res = dir_rewind(dj);
		} else {
			res = dir_read(dj, dir, &fno->lfname[0]);
			if (res == FR_NO_FILE) res = FR_OK;
			if (res == FR_OK) {				/* A valid entry is found */
				get_fileinfo(dj, dir, fno);	/* Get the object information */
				res = dir_next2(dj);			/* Increment index for next */
				if (res == FR_NO_FILE) res = FR_OK;
			}
		}
	}

	if (fno->lfname[0] == '\0') strcpy(&fno->lfname[0],&fno->fname[0]);
	//printf("%s %s(%d)\n",&fno->fname[0], &fno->lfname[0],strlen(&fno->lfname[0]));
	return res;
}
コード例 #7
0
ファイル: pff.c プロジェクト: AgustinParmisano/pinguino32
static FRESULT follow_path (	/* FR_OK(0): successful, !=0: error code */
	DIR *dj,			/* Directory object to return last directory and found object */
	const char *path	/* Full-path string to find a file or directory */
)
{
	FRESULT res;
	u8 *dir;
	u8 t[15];

//	memcpypgm2ram(t, path, 15);

	while (*path == ' ') path++;		/* Skip leading spaces */
	if (*path == '/') path++;			/* Strip heading separator */
	dj->sclust = 0;						/* Set start directory (always root dir) */

//	memcpypgm2ram(t, path, 15);

	if ((u8)*path <= ' ') {			/* Null path means the root directory */
		res = dir_rewind(dj);
		FatFs->buf[0] = 0;

	} else {							/* Follow path */
		for (;;) {
			res = create_name(dj, &path);	/* Get a segment */
			if (res != FR_OK) break;
         res = dir_find(dj);
			if (res != FR_OK) {				/* Could not find the object */
				if (res == FR_NO_FILE && !*(dj->fn+11))
					res = FR_NO_PATH;
				break;
			}
			if (*(dj->fn+11)) break;		/* Last segment match. Function completed. */
			dir = FatFs->buf;				/* There is next segment. Follow the sub directory */
			if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
				res = FR_NO_PATH; break;
			}
			dj->sclust =
#if _FS_FAT32
				((u32)LD_WORD(dir+DIR_FstClusHI) << 16) |
#endif
				LD_WORD(dir+DIR_FstClusLO);
		}
	}

	return res;
}
コード例 #8
0
ファイル: FileSystem.cpp プロジェクト: NXPmicro/mbed
size_t FileSystem::dir_size(fs_dir_t dir)
{
    off_t off = dir_tell(dir);
    size_t size = 0;
    struct dirent *ent = new struct dirent;

    dir_rewind(dir);
    while (true) {
        int res = dir_read(dir, ent);
        if (res <= 0) {
            break;
        }

        size += 1;
    }
    dir_seek(dir, off);

    delete ent;
    return size;
}
コード例 #9
0
ファイル: pff.c プロジェクト: Andrew0Hill/keyboard
FRESULT pf_opendir (
	DIR *dj,			/* Pointer to directory object to create */
	const char *path	/* Pointer to the directory path */
)
{
	FRESULT res;
	BYTE sp[12], dir[32];
	FATFS *fs = FatFs;


	if (!fs) {				/* Check file system */
		res = FR_NOT_ENABLED;
	} else {
		fs->buf = dir;
		dj->fn = sp;
		res = follow_path(dj, path);			/* Follow the path to the directory */
		if (res == FR_OK) {						/* Follow completed */
			if (dir[0]) {						/* It is not the root dir */
				if (dir[DIR_Attr] & AM_DIR) {	/* The object is a directory */
					dj->sclust =
#if _FS_FAT32
					((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) |
#endif
					LD_WORD(dir+DIR_FstClusLO);
				} else {						/* The object is not a directory */
					res = FR_NO_PATH;
				}
			}
			if (res == FR_OK) {
				res = dir_rewind(dj);			/* Rewind dir */
			}
		}
		if (res == FR_NO_FILE) res = FR_NO_PATH;
	}

	return res;
}