4 * R/O (V)FAT 12/16/32 filesystem implementation by Marcus Sundberg
6 * 2002-07-28 - rjones@nexus-tech.net - ported to ppcboot v1.1.6
7 * 2003-03-10 - kharris@nexus-tech.net - ported to uboot
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
31 #include <asm/byteorder.h>
35 * Convert a string to lowercase.
40 while (*str != '\0') {
46 static block_dev_desc_t *cur_dev = NULL;
47 static unsigned long part_offset = 0;
48 static int cur_part = 1;
50 #define DOS_PART_TBL_OFFSET 0x1be
51 #define DOS_PART_MAGIC_OFFSET 0x1fe
52 #define DOS_FS_TYPE_OFFSET 0x36
54 int disk_read (__u32 startblock, __u32 getsize, __u8 * bufptr)
56 startblock += part_offset;
59 if (cur_dev->block_read) {
60 return cur_dev->block_read (cur_dev->dev
61 , startblock, getsize, (unsigned long *)bufptr);
68 fat_register_device(block_dev_desc_t *dev_desc, int part_no)
70 unsigned char buffer[SECTOR_SIZE];
71 disk_partition_t info;
73 if (!dev_desc->block_read)
76 /* check if we have a MBR (on floppies we have only a PBR) */
77 if (dev_desc->block_read (dev_desc->dev, 0, 1, (ulong *) buffer) != 1) {
78 printf ("** Can't read from device %d **\n", dev_desc->dev);
81 if (buffer[DOS_PART_MAGIC_OFFSET] != 0x55 ||
82 buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) {
83 /* no signature found */
86 #if (defined(CONFIG_CMD_IDE) || \
87 defined(CONFIG_CMD_MG_DISK) || \
88 defined(CONFIG_CMD_SATA) || \
89 defined(CONFIG_CMD_SCSI) || \
90 defined(CONFIG_CMD_USB) || \
91 defined(CONFIG_MMC) || \
92 defined(CONFIG_SYSTEMACE) )
93 /* First we assume, there is a MBR */
94 if (!get_partition_info (dev_desc, part_no, &info)) {
95 part_offset = info.start;
97 } else if (!strncmp((char *)&buffer[DOS_FS_TYPE_OFFSET], "FAT", 3)) {
98 /* ok, we assume we are on a PBR only */
102 printf ("** Partition %d not valid on device %d **\n",
103 part_no, dev_desc->dev);
108 if (!strncmp((char *)&buffer[DOS_FS_TYPE_OFFSET],"FAT",3)) {
109 /* ok, we assume we are on a PBR only */
112 info.start = part_offset;
114 /* FIXME we need to determine the start block of the
115 * partition where the DOS FS resides. This can be done
116 * by using the get_partition_info routine. For this
117 * purpose the libpart must be included.
128 * Get the first occurence of a directory delimiter ('/' or '\') in a string.
129 * Return index into string if found, -1 otherwise.
136 while (*str != '\0') {
137 if (ISDIRDELIM(*str)) return str - start;
145 * Match volume_info fs_type strings.
146 * Return 0 on match, -1 otherwise.
149 compare_sign(char *str1, char *str2)
151 char *end = str1+SIGNLEN;
153 while (str1 != end) {
154 if (*str1 != *str2) {
166 * Extract zero terminated short name from a directory entry.
168 static void get_name (dir_entry *dirent, char *s_name)
172 memcpy (s_name, dirent->name, 8);
175 while (*ptr && *ptr != ' ')
177 if (dirent->ext[0] && dirent->ext[0] != ' ') {
180 memcpy (ptr, dirent->ext, 3);
182 while (*ptr && *ptr != ' ')
186 if (*s_name == DELETED_FLAG)
188 else if (*s_name == aRING)
189 *s_name = DELETED_FLAG;
194 * Get the entry at index 'entry' in a FAT (12/16/32) table.
195 * On failure 0x00 is returned.
198 get_fatent(fsdata *mydata, __u32 entry)
204 switch (mydata->fatsize) {
206 bufnum = entry / FAT32BUFSIZE;
207 offset = entry - bufnum * FAT32BUFSIZE;
210 bufnum = entry / FAT16BUFSIZE;
211 offset = entry - bufnum * FAT16BUFSIZE;
214 bufnum = entry / FAT12BUFSIZE;
215 offset = entry - bufnum * FAT12BUFSIZE;
219 /* Unsupported FAT size */
223 /* Read a new block of FAT entries into the cache. */
224 if (bufnum != mydata->fatbufnum) {
225 int getsize = FATBUFSIZE/FS_BLOCK_SIZE;
226 __u8 *bufptr = mydata->fatbuf;
227 __u32 fatlength = mydata->fatlength;
228 __u32 startblock = bufnum * FATBUFBLOCKS;
230 fatlength *= SECTOR_SIZE; /* We want it in bytes now */
231 startblock += mydata->fat_sect; /* Offset from start of disk */
233 if (getsize > fatlength) getsize = fatlength;
234 if (disk_read(startblock, getsize, bufptr) < 0) {
235 FAT_DPRINT("Error reading FAT blocks\n");
238 mydata->fatbufnum = bufnum;
241 /* Get the actual entry from the table */
242 switch (mydata->fatsize) {
244 ret = FAT2CPU32(((__u32*)mydata->fatbuf)[offset]);
247 ret = FAT2CPU16(((__u16*)mydata->fatbuf)[offset]);
250 __u32 off16 = (offset*3)/4;
253 switch (offset & 0x3) {
255 ret = FAT2CPU16(((__u16*)mydata->fatbuf)[off16]);
259 val1 = FAT2CPU16(((__u16*)mydata->fatbuf)[off16]);
261 val2 = FAT2CPU16(((__u16*)mydata->fatbuf)[off16+1]);
263 ret = (val2 << 4) | (val1 >> 12);
266 val1 = FAT2CPU16(((__u16*)mydata->fatbuf)[off16]);
268 val2 = FAT2CPU16(((__u16*)mydata->fatbuf)[off16+1]);
270 ret = (val2 << 8) | (val1 >> 8);
273 ret = FAT2CPU16(((__u16*)mydata->fatbuf)[off16]);;
274 ret = (ret & 0xfff0) >> 4;
282 FAT_DPRINT("ret: %d, offset: %d\n", ret, offset);
289 * Read at most 'size' bytes from the specified cluster into 'buffer'.
290 * Return 0 on success, -1 otherwise.
293 get_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer, unsigned long size)
299 startsect = mydata->data_begin + clustnum*mydata->clust_size;
301 startsect = mydata->rootdir_sect;
304 FAT_DPRINT("gc - clustnum: %d, startsect: %d\n", clustnum, startsect);
305 if (disk_read(startsect, size/FS_BLOCK_SIZE , buffer) < 0) {
306 FAT_DPRINT("Error reading data\n");
309 if(size % FS_BLOCK_SIZE) {
310 __u8 tmpbuf[FS_BLOCK_SIZE];
311 idx= size/FS_BLOCK_SIZE;
312 if (disk_read(startsect + idx, 1, tmpbuf) < 0) {
313 FAT_DPRINT("Error reading data\n");
316 buffer += idx*FS_BLOCK_SIZE;
318 memcpy(buffer, tmpbuf, size % FS_BLOCK_SIZE);
327 * Read at most 'maxsize' bytes from the file associated with 'dentptr'
329 * Return the number of bytes read or -1 on fatal errors.
332 get_contents(fsdata *mydata, dir_entry *dentptr, __u8 *buffer,
333 unsigned long maxsize)
335 unsigned long filesize = FAT2CPU32(dentptr->size), gotsize = 0;
336 unsigned int bytesperclust = mydata->clust_size * SECTOR_SIZE;
337 __u32 curclust = START(dentptr);
338 __u32 endclust, newclust;
339 unsigned long actsize;
341 FAT_DPRINT("Filesize: %ld bytes\n", filesize);
343 if (maxsize > 0 && filesize > maxsize) filesize = maxsize;
345 FAT_DPRINT("Reading: %ld bytes\n", filesize);
347 actsize=bytesperclust;
350 /* search for consecutive clusters */
351 while(actsize < filesize) {
352 newclust = get_fatent(mydata, endclust);
353 if((newclust -1)!=endclust)
355 if (CHECK_CLUST(newclust, mydata->fatsize)) {
356 FAT_DPRINT("curclust: 0x%x\n", newclust);
357 FAT_DPRINT("Invalid FAT entry\n");
361 actsize+= bytesperclust;
363 /* actsize >= file size */
364 actsize -= bytesperclust;
365 /* get remaining clusters */
366 if (get_cluster(mydata, curclust, buffer, (int)actsize) != 0) {
367 FAT_ERROR("Error reading cluster\n");
370 /* get remaining bytes */
371 gotsize += (int)actsize;
375 if (get_cluster(mydata, endclust, buffer, (int)actsize) != 0) {
376 FAT_ERROR("Error reading cluster\n");
382 if (get_cluster(mydata, curclust, buffer, (int)actsize) != 0) {
383 FAT_ERROR("Error reading cluster\n");
386 gotsize += (int)actsize;
389 curclust = get_fatent(mydata, endclust);
390 if (CHECK_CLUST(curclust, mydata->fatsize)) {
391 FAT_DPRINT("curclust: 0x%x\n", curclust);
392 FAT_ERROR("Invalid FAT entry\n");
395 actsize=bytesperclust;
401 #ifdef CONFIG_SUPPORT_VFAT
403 * Extract the file name information from 'slotptr' into 'l_name',
404 * starting at l_name[*idx].
405 * Return 1 if terminator (zero byte) is found, 0 otherwise.
408 slot2str(dir_slot *slotptr, char *l_name, int *idx)
412 for (j = 0; j <= 8; j += 2) {
413 l_name[*idx] = slotptr->name0_4[j];
414 if (l_name[*idx] == 0x00) return 1;
417 for (j = 0; j <= 10; j += 2) {
418 l_name[*idx] = slotptr->name5_10[j];
419 if (l_name[*idx] == 0x00) return 1;
422 for (j = 0; j <= 2; j += 2) {
423 l_name[*idx] = slotptr->name11_12[j];
424 if (l_name[*idx] == 0x00) return 1;
433 * Extract the full long filename starting at 'retdent' (which is really
434 * a slot) into 'l_name'. If successful also copy the real directory entry
436 * Return 0 on success, -1 otherwise.
438 __attribute__ ((__aligned__(__alignof__(dir_entry))))
439 __u8 get_vfatname_block[MAX_CLUSTSIZE];
441 get_vfatname(fsdata *mydata, int curclust, __u8 *cluster,
442 dir_entry *retdent, char *l_name)
445 dir_slot *slotptr = (dir_slot*) retdent;
446 __u8 *nextclust = cluster + mydata->clust_size * SECTOR_SIZE;
447 __u8 counter = (slotptr->id & ~LAST_LONG_ENTRY_MASK) & 0xff;
450 while ((__u8*)slotptr < nextclust) {
451 if (counter == 0) break;
452 if (((slotptr->id & ~LAST_LONG_ENTRY_MASK) & 0xff) != counter)
458 if ((__u8*)slotptr >= nextclust) {
462 curclust = get_fatent(mydata, curclust);
463 if (CHECK_CLUST(curclust, mydata->fatsize)) {
464 FAT_DPRINT("curclust: 0x%x\n", curclust);
465 FAT_ERROR("Invalid FAT entry\n");
468 if (get_cluster(mydata, curclust, get_vfatname_block,
469 mydata->clust_size * SECTOR_SIZE) != 0) {
470 FAT_DPRINT("Error: reading directory block\n");
473 slotptr2 = (dir_slot*) get_vfatname_block;
474 while (slotptr2->id > 0x01) {
477 /* Save the real directory entry */
478 realdent = (dir_entry*)slotptr2 + 1;
479 while ((__u8*)slotptr2 >= get_vfatname_block) {
480 slot2str(slotptr2, l_name, &idx);
484 /* Save the real directory entry */
485 realdent = (dir_entry*)slotptr;
490 if (slot2str(slotptr, l_name, &idx)) break;
491 } while (!(slotptr->id & LAST_LONG_ENTRY_MASK));
494 if (*l_name == DELETED_FLAG) *l_name = '\0';
495 else if (*l_name == aRING) *l_name = DELETED_FLAG;
498 /* Return the real directory entry */
499 memcpy(retdent, realdent, sizeof(dir_entry));
505 /* Calculate short name checksum */
507 mkcksum(const char *str)
512 for (i = 0; i < 11; i++) {
513 ret = (((ret&1)<<7)|((ret&0xfe)>>1)) + str[i];
522 * Get the directory entry associated with 'filename' from the directory
523 * starting at 'startsect'
525 __attribute__ ((__aligned__(__alignof__(dir_entry))))
526 __u8 get_dentfromdir_block[MAX_CLUSTSIZE];
527 static dir_entry *get_dentfromdir (fsdata * mydata, int startsect,
528 char *filename, dir_entry * retdent,
531 __u16 prevcksum = 0xffff;
532 __u32 curclust = START (retdent);
533 int files = 0, dirs = 0;
535 FAT_DPRINT ("get_dentfromdir: %s\n", filename);
540 if (get_cluster (mydata, curclust, get_dentfromdir_block,
541 mydata->clust_size * SECTOR_SIZE) != 0) {
542 FAT_DPRINT ("Error: reading directory block\n");
545 dentptr = (dir_entry *) get_dentfromdir_block;
546 for (i = 0; i < DIRENTSPERCLUST; i++) {
547 char s_name[14], l_name[256];
550 if (dentptr->name[0] == DELETED_FLAG) {
554 if ((dentptr->attr & ATTR_VOLUME)) {
555 #ifdef CONFIG_SUPPORT_VFAT
556 if ((dentptr->attr & ATTR_VFAT) &&
557 (dentptr->name[0] & LAST_LONG_ENTRY_MASK)) {
558 prevcksum = ((dir_slot *) dentptr)
560 get_vfatname (mydata, curclust, get_dentfromdir_block,
563 int isdir = (dentptr->attr & ATTR_DIR);
573 if (l_name[0] != 0) {
580 printf (" %8ld %s%c\n",
581 (long) FAT2CPU32 (dentptr->size),
584 printf (" %s%c\n", l_name, dirc);
590 FAT_DPRINT ("vfatname: |%s|\n", l_name);
594 /* Volume label or VFAT entry */
599 if (dentptr->name[0] == 0) {
601 printf ("\n%d file(s), %d dir(s)\n\n", files, dirs);
603 FAT_DPRINT ("Dentname == NULL - %d\n", i);
606 #ifdef CONFIG_SUPPORT_VFAT
607 if (dols && mkcksum (dentptr->name) == prevcksum) {
612 get_name (dentptr, s_name);
614 int isdir = (dentptr->attr & ATTR_DIR);
624 if (s_name[0] != 0) {
631 printf (" %8ld %s%c\n",
632 (long) FAT2CPU32 (dentptr->size), s_name,
635 printf (" %s%c\n", s_name, dirc);
641 if (strcmp (filename, s_name) && strcmp (filename, l_name)) {
642 FAT_DPRINT ("Mismatch: |%s|%s|\n", s_name, l_name);
646 memcpy (retdent, dentptr, sizeof (dir_entry));
648 FAT_DPRINT ("DentName: %s", s_name);
649 FAT_DPRINT (", start: 0x%x", START (dentptr));
650 FAT_DPRINT (", size: 0x%x %s\n",
651 FAT2CPU32 (dentptr->size),
652 (dentptr->attr & ATTR_DIR) ? "(DIR)" : "");
656 curclust = get_fatent (mydata, curclust);
657 if (CHECK_CLUST(curclust, mydata->fatsize)) {
658 FAT_DPRINT ("curclust: 0x%x\n", curclust);
659 FAT_ERROR ("Invalid FAT entry\n");
669 * Read boot sector and volume info from a FAT filesystem
672 read_bootsectandvi(boot_sector *bs, volume_info *volinfo, int *fatsize)
674 __u8 block[FS_BLOCK_SIZE];
675 volume_info *vistart;
678 if (disk_read(0, 1, block) < 0) {
679 FAT_DPRINT("Error: reading block\n");
683 memcpy(bs, block, sizeof(boot_sector));
684 bs->reserved = FAT2CPU16(bs->reserved);
685 bs->fat_length = FAT2CPU16(bs->fat_length);
686 bs->secs_track = FAT2CPU16(bs->secs_track);
687 bs->heads = FAT2CPU16(bs->heads);
689 bs->hidden = FAT2CPU32(bs->hidden);
691 bs->total_sect = FAT2CPU32(bs->total_sect);
694 if (bs->fat_length == 0) {
696 bs->fat32_length = FAT2CPU32(bs->fat32_length);
697 bs->flags = FAT2CPU16(bs->flags);
698 bs->root_cluster = FAT2CPU32(bs->root_cluster);
699 bs->info_sector = FAT2CPU16(bs->info_sector);
700 bs->backup_boot = FAT2CPU16(bs->backup_boot);
701 vistart = (volume_info*) (block + sizeof(boot_sector));
704 vistart = (volume_info*) &(bs->fat32_length);
707 memcpy(volinfo, vistart, sizeof(volume_info));
710 * Terminate fs_type string. Writing past the end of vistart
711 * is ok - it's just the buffer.
713 fstype = vistart->fs_type;
716 if (*fatsize == 32) {
717 if (compare_sign(FAT32_SIGN, vistart->fs_type) == 0) {
721 if (compare_sign(FAT12_SIGN, vistart->fs_type) == 0) {
725 if (compare_sign(FAT16_SIGN, vistart->fs_type) == 0) {
731 FAT_DPRINT("Error: broken fs_type sign\n");
735 __attribute__ ((__aligned__(__alignof__(dir_entry))))
736 __u8 do_fat_read_block[MAX_CLUSTSIZE];
738 do_fat_read (const char *filename, void *buffer, unsigned long maxsize,
741 #if CONFIG_NIOS /* NIOS CPU cannot access big automatic arrays */
744 char fnamecopy[2048];
748 fsdata *mydata = &datablock;
750 __u16 prevcksum = 0xffff;
752 int rootdir_size, cursect;
754 int files = 0, dirs = 0;
758 if (read_bootsectandvi (&bs, &volinfo, &mydata->fatsize)) {
759 FAT_DPRINT ("Error: reading boot sector\n");
762 if (mydata->fatsize == 32) {
763 mydata->fatlength = bs.fat32_length;
765 mydata->fatlength = bs.fat_length;
767 mydata->fat_sect = bs.reserved;
768 cursect = mydata->rootdir_sect
769 = mydata->fat_sect + mydata->fatlength * bs.fats;
770 mydata->clust_size = bs.cluster_size;
771 if (mydata->fatsize == 32) {
772 rootdir_size = mydata->clust_size;
773 mydata->data_begin = mydata->rootdir_sect /* + rootdir_size */
774 - (mydata->clust_size * 2);
776 rootdir_size = ((bs.dir_entries[1] * (int) 256 + bs.dir_entries[0])
777 * sizeof (dir_entry)) / SECTOR_SIZE;
778 mydata->data_begin = mydata->rootdir_sect + rootdir_size
779 - (mydata->clust_size * 2);
781 mydata->fatbufnum = -1;
783 FAT_DPRINT ("FAT%d, fatlength: %d\n", mydata->fatsize,
785 FAT_DPRINT ("Rootdir begins at sector: %d, offset: %x, size: %d\n"
786 "Data begins at: %d\n",
787 mydata->rootdir_sect, mydata->rootdir_sect * SECTOR_SIZE,
788 rootdir_size, mydata->data_begin);
789 FAT_DPRINT ("Cluster size: %d\n", mydata->clust_size);
791 /* "cwd" is always the root... */
792 while (ISDIRDELIM (*filename))
794 /* Make a copy of the filename and convert it to lowercase */
795 strcpy (fnamecopy, filename);
796 downcase (fnamecopy);
797 if (*fnamecopy == '\0') {
801 } else if ((idx = dirdelim (fnamecopy)) >= 0) {
803 fnamecopy[idx] = '\0';
804 subname = fnamecopy + idx + 1;
805 /* Handle multiple delimiters */
806 while (ISDIRDELIM (*subname))
815 if (disk_read (cursect, mydata->clust_size, do_fat_read_block) < 0) {
816 FAT_DPRINT ("Error: reading rootdir block\n");
819 dentptr = (dir_entry *) do_fat_read_block;
820 for (i = 0; i < DIRENTSPERBLOCK; i++) {
821 char s_name[14], l_name[256];
824 if ((dentptr->attr & ATTR_VOLUME)) {
825 #ifdef CONFIG_SUPPORT_VFAT
826 if ((dentptr->attr & ATTR_VFAT) &&
827 (dentptr->name[0] & LAST_LONG_ENTRY_MASK)) {
828 prevcksum = ((dir_slot *) dentptr)->alias_checksum;
829 get_vfatname (mydata, 0, do_fat_read_block, dentptr, l_name);
830 if (dols == LS_ROOT) {
831 int isdir = (dentptr->attr & ATTR_DIR);
841 if (l_name[0] != 0) {
848 printf (" %8ld %s%c\n",
849 (long) FAT2CPU32 (dentptr->size),
852 printf (" %s%c\n", l_name, dirc);
858 FAT_DPRINT ("Rootvfatname: |%s|\n", l_name);
862 /* Volume label or VFAT entry */
866 } else if (dentptr->name[0] == 0) {
867 FAT_DPRINT ("RootDentname == NULL - %d\n", i);
868 if (dols == LS_ROOT) {
869 printf ("\n%d file(s), %d dir(s)\n\n", files, dirs);
874 #ifdef CONFIG_SUPPORT_VFAT
875 else if (dols == LS_ROOT
876 && mkcksum (dentptr->name) == prevcksum) {
881 get_name (dentptr, s_name);
882 if (dols == LS_ROOT) {
883 int isdir = (dentptr->attr & ATTR_DIR);
889 if (s_name[0] != 0) {
895 if (s_name[0] != 0) {
902 printf (" %8ld %s%c\n",
903 (long) FAT2CPU32 (dentptr->size), s_name,
906 printf (" %s%c\n", s_name, dirc);
912 if (strcmp (fnamecopy, s_name) && strcmp (fnamecopy, l_name)) {
913 FAT_DPRINT ("RootMismatch: |%s|%s|\n", s_name, l_name);
917 if (isdir && !(dentptr->attr & ATTR_DIR))
920 FAT_DPRINT ("RootName: %s", s_name);
921 FAT_DPRINT (", start: 0x%x", START (dentptr));
922 FAT_DPRINT (", size: 0x%x %s\n",
923 FAT2CPU32 (dentptr->size), isdir ? "(DIR)" : "");
925 goto rootdir_done; /* We got a match */
933 int startsect = mydata->data_begin
934 + START (dentptr) * mydata->clust_size;
936 char *nextname = NULL;
941 idx = dirdelim (subname);
944 nextname = subname + idx + 1;
945 /* Handle multiple delimiters */
946 while (ISDIRDELIM (*nextname))
948 if (dols && *nextname == '\0')
951 if (dols && firsttime) {
958 if (get_dentfromdir (mydata, startsect, subname, dentptr,
959 isdir ? 0 : dols) == NULL) {
966 if (!(dentptr->attr & ATTR_DIR))
971 ret = get_contents (mydata, dentptr, buffer, maxsize);
972 FAT_DPRINT ("Size: %d, got: %ld\n", FAT2CPU32 (dentptr->size), ret);
979 file_fat_detectfs(void)
987 printf("No current device\n");
990 #if defined(CONFIG_CMD_IDE) || \
991 defined(CONFIG_CMD_MG_DISK) || \
992 defined(CONFIG_CMD_SATA) || \
993 defined(CONFIG_CMD_SCSI) || \
994 defined(CONFIG_CMD_USB) || \
996 printf("Interface: ");
997 switch(cur_dev->if_type) {
998 case IF_TYPE_IDE : printf("IDE"); break;
999 case IF_TYPE_SATA : printf("SATA"); break;
1000 case IF_TYPE_SCSI : printf("SCSI"); break;
1001 case IF_TYPE_ATAPI : printf("ATAPI"); break;
1002 case IF_TYPE_USB : printf("USB"); break;
1003 case IF_TYPE_DOC : printf("DOC"); break;
1004 case IF_TYPE_MMC : printf("MMC"); break;
1005 default : printf("Unknown");
1007 printf("\n Device %d: ",cur_dev->dev);
1010 if(read_bootsectandvi(&bs, &volinfo, &fatsize)) {
1011 printf("\nNo valid FAT fs found\n");
1014 memcpy (vol_label, volinfo.volume_label, 11);
1015 vol_label[11] = '\0';
1016 volinfo.fs_type[5]='\0';
1017 printf("Partition %d: Filesystem: %s \"%s\"\n"
1018 ,cur_part,volinfo.fs_type,vol_label);
1024 file_fat_ls(const char *dir)
1026 return do_fat_read(dir, NULL, 0, LS_YES);
1031 file_fat_read(const char *filename, void *buffer, unsigned long maxsize)
1033 printf("reading %s\n",filename);
1034 return do_fat_read(filename, buffer, maxsize, LS_NO);