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Diffstat (limited to 'uart-loader/fs/fat/fat.c')
-rw-r--r--uart-loader/fs/fat/fat.c927
1 files changed, 0 insertions, 927 deletions
diff --git a/uart-loader/fs/fat/fat.c b/uart-loader/fs/fat/fat.c
deleted file mode 100644
index bad4f6c..0000000
--- a/uart-loader/fs/fat/fat.c
+++ /dev/null
@@ -1,927 +0,0 @@
-/*
- * fat.c
- *
- * R/O (V)FAT 12/16/32 filesystem implementation by Marcus Sundberg
- *
- * 2002-07-28 - rjones@nexus-tech.net - ported to ppcboot v1.1.6
- * 2003-03-10 - kharris@nexus-tech.net - ported to uboot
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <config.h>
-#include <part.h>
-#include <fat.h>
-#include <asm/byteorder.h>
-
-#ifdef CFG_CMD_FAT
-
-/*
- * Convert a string to lowercase.
- */
-static void
-downcase(char *str)
-{
- while (*str != '\0') {
- TOLOWER(*str);
- str++;
- }
-}
-
-static block_dev_desc_t *cur_dev = NULL;
-static unsigned long part_offset = 0;
-static int cur_part = 1;
-
-#define DOS_PART_TBL_OFFSET 0x1be
-#define DOS_PART_MAGIC_OFFSET 0x1fe
-#define DOS_FS_TYPE_OFFSET 0x52
-
-int strncmp(const char * cs,const char * ct,size_t count)
-{
- register signed char __res = 0;
-
- while (count) {
- if ((__res = *cs - *ct++) != 0 || !*cs++)
- break;
- count--;
- }
-
- return __res;
-}
-
-char * strcpy(char * dest,const char *src)
-{
- char *tmp = dest;
-
- while ((*dest++ = *src++) != '\0')
- /* nothing */;
- return tmp;
-}
-
-int strcmp(const char * cs,const char * ct)
-{
- register signed char __res;
-
- while (1) {
- if ((__res = *cs - *ct++) != 0 || !*cs++)
- break;
- }
-
- return __res;
-}
-void * memcpy(void * dest,const void *src,size_t count)
-{
- char *tmp = (char *) dest, *s = (char *) src;
-
- while (count--)
- *tmp++ = *s++;
-
- return dest;
-}
-
-
-int disk_read (__u32 startblock, __u32 getsize, __u8 * bufptr)
-{
- startblock += part_offset;
- if (cur_dev == NULL)
- return -1;
- if (cur_dev->block_read) {
- return cur_dev->block_read (cur_dev->dev, startblock, getsize, (unsigned long *)bufptr);
- }
- return -1;
-}
-
-
-int
-fat_register_device(block_dev_desc_t *dev_desc, int part_no)
-{
- unsigned char buffer[SECTOR_SIZE];
-
- if (!dev_desc->block_read)
- return -1;
- cur_dev=dev_desc;
- /* check if we have a MBR (on floppies we have only a PBR) */
- if (dev_desc->block_read (dev_desc->dev, 0, 1, (ulong *) buffer) != 1) {
- printf ("** Can't read from device %d **\n", dev_desc->dev);
- return -1;
- }
- if (buffer[DOS_PART_MAGIC_OFFSET] != 0x55 ||
- buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) {
- /* no signature found */
- return -1;
- }
- if(!strncmp((char *)&buffer[DOS_FS_TYPE_OFFSET],"FAT",3)) {
- /* ok, we assume we are on a PBR only */
- cur_part = 1;
- part_offset=0;
- }
- else {
-#if (CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI) || \
- (CONFIG_COMMANDS & CFG_CMD_USB) || (CONFIG_COMMANDS & CFG_CMD_MMC) || defined(CONFIG_SYSTEMACE)
- disk_partition_t info;
- if(!get_partition_info(dev_desc, part_no, &info)) {
- part_offset = info.start;
- cur_part = part_no;
- }
- else {
- printf ("** Partition %d not valid on device %d **\n",part_no,dev_desc->dev);
- return -1;
- }
-#else
- /* FIXME we need to determine the start block of the
- * partition where the DOS FS resides. This can be done
- * by using the get_partition_info routine. For this
- * purpose the libpart must be included.
- */
- part_offset=63;
- //part_offset=0;
- cur_part = 1;
-#endif
- }
- return 0;
-}
-
-
-/*
- * Get the first occurence of a directory delimiter ('/' or '\') in a string.
- * Return index into string if found, -1 otherwise.
- */
-static int
-dirdelim(char *str)
-{
- char *start = str;
-
- while (*str != '\0') {
- if (ISDIRDELIM(*str)) return str - start;
- str++;
- }
- return -1;
-}
-
-
-/*
- * Match volume_info fs_type strings.
- * Return 0 on match, -1 otherwise.
- */
-static int
-compare_sign(char *str1, char *str2)
-{
- char *end = str1+SIGNLEN;
-
- while (str1 != end) {
- if (*str1 != *str2) {
- return -1;
- }
- str1++;
- str2++;
- }
-
- return 0;
-}
-
-
-/*
- * Extract zero terminated short name from a directory entry.
- */
-static void get_name (dir_entry *dirent, char *s_name)
-{
- char *ptr;
-
- memcpy (s_name, dirent->name, 8);
- s_name[8] = '\0';
- ptr = s_name;
- while (*ptr && *ptr != ' ')
- ptr++;
- if (dirent->ext[0] && dirent->ext[0] != ' ') {
- *ptr = '.';
- ptr++;
- memcpy (ptr, dirent->ext, 3);
- ptr[3] = '\0';
- while (*ptr && *ptr != ' ')
- ptr++;
- }
- *ptr = '\0';
- if (*s_name == DELETED_FLAG)
- *s_name = '\0';
- else if (*s_name == aRING)
- *s_name = 'å';
- downcase (s_name);
-}
-
-/*
- * Get the entry at index 'entry' in a FAT (12/16/32) table.
- * On failure 0x00 is returned.
- */
-static __u32
-get_fatent(fsdata *mydata, __u32 entry)
-{
- __u32 bufnum;
- __u32 offset;
- __u32 ret = 0x00;
-
- switch (mydata->fatsize) {
- case 32:
- bufnum = entry / FAT32BUFSIZE;
- offset = entry - bufnum * FAT32BUFSIZE;
- break;
- case 16:
- bufnum = entry / FAT16BUFSIZE;
- offset = entry - bufnum * FAT16BUFSIZE;
- break;
- case 12:
- bufnum = entry / FAT12BUFSIZE;
- offset = entry - bufnum * FAT12BUFSIZE;
- break;
-
- default:
- /* Unsupported FAT size */
- return ret;
- }
- /* Read a new block of FAT entries into the cache. */
- if (bufnum != mydata->fatbufnum) {
- int getsize = FATBUFSIZE/FS_BLOCK_SIZE;
- __u8 *bufptr = mydata->fatbuf;
- __u32 fatlength = mydata->fatlength;
- __u32 startblock = bufnum * FATBUFBLOCKS;
- unsigned long i;
-
- fatlength *= SECTOR_SIZE; /* We want it in bytes now */
- startblock += mydata->fat_sect; /* Offset from start of disk */
-
- if (getsize > fatlength) getsize = fatlength;
- if (disk_read(startblock, getsize, bufptr) < 0) {
- FAT_DPRINT("Error reading FAT blocks\n");
- return ret;
- }
- mydata->fatbufnum = bufnum;
- }
-
- /* Get the actual entry from the table */
- switch (mydata->fatsize) {
- case 32:
- ret = FAT2CPU32(((__u32*)mydata->fatbuf)[offset]);
- break;
- case 16:
- ret = FAT2CPU16(((__u16*)mydata->fatbuf)[offset]);
- break;
- case 12: {
- __u32 off16 = (offset*3)/4;
- __u16 val1, val2;
-
- switch (offset & 0x3) {
- case 0:
- ret = FAT2CPU16(((__u16*)mydata->fatbuf)[off16]);
- ret &= 0xfff;
- break;
- case 1:
- val1 = FAT2CPU16(((__u16*)mydata->fatbuf)[off16]);
- val1 &= 0xf000;
- val2 = FAT2CPU16(((__u16*)mydata->fatbuf)[off16+1]);
- val2 &= 0x00ff;
- ret = (val2 << 4) | (val1 >> 12);
- break;
- case 2:
- val1 = FAT2CPU16(((__u16*)mydata->fatbuf)[off16]);
- val1 &= 0xff00;
- val2 = FAT2CPU16(((__u16*)mydata->fatbuf)[off16+1]);
- val2 &= 0x000f;
- ret = (val2 << 8) | (val1 >> 8);
- break;
- case 3:
- ret = FAT2CPU16(((__u16*)mydata->fatbuf)[off16]);;
- ret = (ret & 0xfff0) >> 4;
- break;
- default:
- break;
- }
- }
- break;
- }
- FAT_DPRINT("ret: %d, offset: %d\n", ret, offset);
-
- return ret;
-}
-
-
-/*
- * Read at most 'size' bytes from the specified cluster into 'buffer'.
- * Return 0 on success, -1 otherwise.
- */
-static int
-get_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer, unsigned long size)
-{
- int idx = 0;
- __u32 startsect;
-
- if (clustnum > 0) {
- startsect = mydata->data_begin + clustnum*mydata->clust_size;
- } else {
- startsect = mydata->rootdir_sect;
- }
-
- if (disk_read(startsect, size/FS_BLOCK_SIZE , buffer) < 0) {
- FAT_DPRINT("Error reading data\n");
- return -1;
- }
- if(size % FS_BLOCK_SIZE) {
- __u8 tmpbuf[FS_BLOCK_SIZE];
- idx= size/FS_BLOCK_SIZE;
- if (disk_read(startsect + idx, 1, tmpbuf) < 0) {
- FAT_DPRINT("Error reading data\n");
- return -1;
- }
- buffer += idx*FS_BLOCK_SIZE;
-
- memcpy(buffer, tmpbuf, size % FS_BLOCK_SIZE);
- return 0;
- }
-
- return 0;
-}
-
-
-/*
- * Read at most 'maxsize' bytes from the file associated with 'dentptr'
- * into 'buffer'.
- * Return the number of bytes read or -1 on fatal errors.
- */
-static long
-get_contents(fsdata *mydata, dir_entry *dentptr, __u8 *buffer,
- unsigned long maxsize)
-{
- unsigned long filesize = FAT2CPU32(dentptr->size), gotsize = 0;
- unsigned int bytesperclust = mydata->clust_size * SECTOR_SIZE;
- __u32 curclust = START(dentptr);
- __u32 endclust, newclust;
- unsigned long actsize;
-
- FAT_DPRINT("Filesize: %ld bytes\n", filesize);
-
- if (maxsize > 0 && filesize > maxsize) filesize = maxsize;
-
- FAT_DPRINT("Reading: %ld bytes\n", filesize);
-
- actsize=bytesperclust;
- endclust=curclust;
- do {
- /* search for consecutive clusters */
- while(actsize < filesize) {
- newclust = get_fatent(mydata, endclust);
- if((newclust -1)!=endclust)
- goto getit;
- if (newclust <= 0x0001 || newclust >= 0xfff0) {
- FAT_DPRINT("curclust: 0x%x\n", newclust);
- FAT_DPRINT("Invalid FAT entry\n");
- return gotsize;
- }
- endclust=newclust;
- actsize+= bytesperclust;
- }
- /* actsize >= file size */
- actsize -= bytesperclust;
- /* get remaining clusters */
- if (get_cluster(mydata, curclust, buffer, (int)actsize) != 0) {
- FAT_ERROR("Error reading cluster\n");
- return -1;
- }
- /* get remaining bytes */
- gotsize += (int)actsize;
- filesize -= actsize;
- buffer += actsize;
- actsize= filesize;
- if (get_cluster(mydata, endclust, buffer, (int)actsize) != 0) {
- FAT_ERROR("Error reading cluster\n");
- return -1;
- }
- gotsize+=actsize;
- return gotsize;
-getit:
- if (get_cluster(mydata, curclust, buffer, (int)actsize) != 0) {
- FAT_ERROR("Error reading cluster\n");
- return -1;
- }
- gotsize += (int)actsize;
- filesize -= actsize;
- buffer += actsize;
- curclust = get_fatent(mydata, endclust);
- if (curclust <= 0x0001 || curclust >= 0xfff0) {
- FAT_DPRINT("curclust: 0x%x\n", curclust);
- FAT_ERROR("Invalid FAT entry\n");
- return gotsize;
- }
- actsize=bytesperclust;
- endclust=curclust;
- } while (1);
-}
-
-
-#ifdef CONFIG_SUPPORT_VFAT
-/*
- * Extract the file name information from 'slotptr' into 'l_name',
- * starting at l_name[*idx].
- * Return 1 if terminator (zero byte) is found, 0 otherwise.
- */
-static int
-slot2str(dir_slot *slotptr, char *l_name, int *idx)
-{
- int j;
-
- for (j = 0; j <= 8; j += 2) {
- l_name[*idx] = slotptr->name0_4[j];
- if (l_name[*idx] == 0x00) return 1;
- (*idx)++;
- }
- for (j = 0; j <= 10; j += 2) {
- l_name[*idx] = slotptr->name5_10[j];
- if (l_name[*idx] == 0x00) return 1;
- (*idx)++;
- }
- for (j = 0; j <= 2; j += 2) {
- l_name[*idx] = slotptr->name11_12[j];
- if (l_name[*idx] == 0x00) return 1;
- (*idx)++;
- }
-
- return 0;
-}
-
-/* Calculate short name checksum */
-static __u8
-mkcksum(const char *str)
-{
- int i;
- __u8 ret = 0;
-
- for (i = 0; i < 11; i++) {
- ret = (((ret&1)<<7)|((ret&0xfe)>>1)) + str[i];
- }
-
- return ret;
-}
-#endif
-
-
-/*
- * Get the directory entry associated with 'filename' from the directory
- * starting at 'startsect'
- */
-
-
-static dir_entry *get_dentfromdir (fsdata * mydata, int startsect,
- char *filename, dir_entry * retdent,
- int dols)
-{
-
-}
-
-#if 0
-__u8 get_dentfromdir_block[MAX_CLUSTSIZE];
-static dir_entry *get_dentfromdir (fsdata * mydata, int startsect,
- char *filename, dir_entry * retdent,
- int dols)
-{
- __u16 prevcksum = 0xffff;
- __u32 curclust = START (retdent);
- int files = 0, dirs = 0;
-
- while (1) {
- dir_entry *dentptr;
- int i;
-
- if (get_cluster (mydata, curclust, get_dentfromdir_block,
- mydata->clust_size * SECTOR_SIZE) != 0) {
- FAT_DPRINT ("Error: reading directory block\n");
- return NULL;
- }
- dentptr = (dir_entry *) get_dentfromdir_block;
- for (i = 0; i < DIRENTSPERCLUST; i++) {
- char s_name[14], l_name[256];
-
- l_name[0] = '\0';
- if (dentptr->name[0] == DELETED_FLAG) {
- dentptr++;
- continue;
- }
- if ((dentptr->attr & ATTR_VOLUME)) {
- /* Volume label or VFAT entry */
- dentptr++;
- continue;
- }
- if (dentptr->name[0] == 0) {
- if (dols) {
- printf ("\n%d file(s), %d dir(s)\n\n", files, dirs);
- }
- FAT_DPRINT ("Dentname == NULL - %d\n", i);
- return NULL;
- }
-#ifdef CONFIG_SUPPORT_VFAT
- if (dols && mkcksum (dentptr->name) == prevcksum) {
- dentptr++;
- continue;
- }
-#endif
- get_name (dentptr, s_name);
- if (dols) {
- int isdir = (dentptr->attr & ATTR_DIR);
- char dirc;
- int doit = 0;
-
- if (isdir) {
- dirs++;
- dirc = '/';
- doit = 1;
- } else {
- dirc = ' ';
- if (s_name[0] != 0) {
- files++;
- doit = 1;
- }
- }
- if (doit) {
- if (dirc == ' ') {
- printf (" %8ld %s%c\n",
- (long) FAT2CPU32 (dentptr->size), s_name,
- dirc);
- } else {
- printf (" %s%c\n", s_name, dirc);
- }
- }
- dentptr++;
- continue;
- }
- if (strcmp (filename, s_name) && strcmp (filename, l_name)) {
- FAT_DPRINT ("Mismatch: |%s|%s|\n", s_name, l_name);
- dentptr++;
- continue;
- }
- memcpy (retdent, dentptr, sizeof (dir_entry));
-
- FAT_DPRINT ("DentName: %s", s_name);
- FAT_DPRINT (", start: 0x%x", START (dentptr));
- FAT_DPRINT (", size: 0x%x %s\n",
- FAT2CPU32 (dentptr->size),
- (dentptr->attr & ATTR_DIR) ? "(DIR)" : "");
-
- return retdent;
- }
- curclust = get_fatent (mydata, curclust);
- if (curclust <= 0x0001 || curclust >= 0xfff0) {
- FAT_DPRINT ("curclust: 0x%x\n", curclust);
- FAT_ERROR ("Invalid FAT entry\n");
- return NULL;
- }
- }
-
- return NULL;
-}
-#endif
-
-
-/*
- * Read boot sector and volume info from a FAT filesystem
- */
-static int
-read_bootsectandvi(boot_sector *bs, volume_info *volinfo, int *fatsize)
-{
- __u8 block[FS_BLOCK_SIZE];
- volume_info *vistart;
-
- FAT_DPRINT("Reading boot sector\n");
-
- if (disk_read(0, 1, block) < 0) {
- FAT_DPRINT("Error: reading block\n");
- return -1;
- }
-
- memcpy(bs, block, sizeof(boot_sector));
- bs->reserved = FAT2CPU16(bs->reserved);
- bs->fat_length = FAT2CPU16(bs->fat_length);
- bs->secs_track = FAT2CPU16(bs->secs_track);
- bs->heads = FAT2CPU16(bs->heads);
-#if 0 /* UNUSED */
- bs->hidden = FAT2CPU32(bs->hidden);
-#endif
- bs->total_sect = FAT2CPU32(bs->total_sect);
-
- /* FAT32 entries */
- if (bs->fat_length == 0) {
- /* Assume FAT32 */
- bs->fat32_length = FAT2CPU32(bs->fat32_length);
- bs->flags = FAT2CPU16(bs->flags);
- bs->root_cluster = FAT2CPU32(bs->root_cluster);
- bs->info_sector = FAT2CPU16(bs->info_sector);
- bs->backup_boot = FAT2CPU16(bs->backup_boot);
- vistart = (volume_info*) (block + sizeof(boot_sector));
- *fatsize = 32;
- } else {
- vistart = (volume_info*) &(bs->fat32_length);
- *fatsize = 0;
- }
- memcpy(volinfo, vistart, sizeof(volume_info));
-
- /* Terminate fs_type string. Writing past the end of vistart
- is ok - it's just the buffer. */
- vistart->fs_type[8] = '\0';
-
- if (*fatsize == 32) {
- if (compare_sign(FAT32_SIGN, vistart->fs_type) == 0) {
- return 0;
- }
- } else {
- if (compare_sign(FAT12_SIGN, vistart->fs_type) == 0) {
- *fatsize = 12;
- return 0;
- }
- if (compare_sign(FAT16_SIGN, vistart->fs_type) == 0) {
- *fatsize = 16;
- return 0;
- }
- }
-
- FAT_DPRINT("Error: broken fs_type sign\n");
- return -1;
-}
-
-#if 0
-__u8 do_fat_read_block[MAX_CLUSTSIZE]; /* Block buffer */
-#endif
-
-__u8 *fnamecopy = 0x80500000;
-__u8 *do_fat_read_block = 0x80500880;
-
-boot_sector bs;
-volume_info volinfo;
-fsdata datablock;
-
-long
-do_fat_read(const char *filename, void *buffer, unsigned long maxsize,
- int dols)
-{
-#if CONFIG_NIOS /* NIOS CPU cannot access big automatic arrays */
- static
-#endif
- fsdata *mydata = &datablock;
- dir_entry *dentptr;
- __u16 prevcksum = 0xffff;
- char *subname = "";
- int rootdir_size, cursect;
- int idx, isdir = 0;
- int files = 0, dirs = 0;
- long ret = 0;
- int firsttime;
-
- if (read_bootsectandvi (&bs, &volinfo, &mydata->fatsize)) {
- printf ("Error: reading boot sector\n");
- return -1;
- }
- if (mydata->fatsize == 32) {
- mydata->fatlength = bs.fat32_length;
- } else {
- mydata->fatlength = bs.fat_length;
- }
- mydata->fat_sect = bs.reserved;
- cursect = mydata->rootdir_sect
- = mydata->fat_sect + mydata->fatlength * bs.fats;
- mydata->clust_size = bs.cluster_size;
- if (mydata->fatsize == 32) {
- rootdir_size = mydata->clust_size;
- mydata->data_begin = mydata->rootdir_sect /* + rootdir_size */
- - (mydata->clust_size * 2);
- } else {
- rootdir_size = ((bs.dir_entries[1] * (int) 256 + bs.dir_entries[0])
- * sizeof (dir_entry)) / SECTOR_SIZE;
- mydata->data_begin = mydata->rootdir_sect + rootdir_size
- - (mydata->clust_size * 2);
- }
- mydata->fatbufnum = -1;
-
- FAT_DPRINT ("FAT%d, fatlength: %d\n", mydata->fatsize,
- mydata->fatlength);
- FAT_DPRINT ("Rootdir begins at sector: %d, offset: %x, size: %d\n"
- "Data begins at: %d\n",
- mydata->rootdir_sect, mydata->rootdir_sect * SECTOR_SIZE,
- rootdir_size, mydata->data_begin);
- FAT_DPRINT ("Cluster size: %d\n", mydata->clust_size);
-
- /* "cwd" is always the root... */
- while (ISDIRDELIM (*filename))
- filename++;
- /* Make a copy of the filename and convert it to lowercase */
- strcpy (fnamecopy, filename);
- downcase (fnamecopy);
- if (*fnamecopy == '\0') {
- if (!dols){
- printf("\n not there\n");
- return -1;
- }
- dols = LS_ROOT;
- } else if ((idx = dirdelim (fnamecopy)) >= 0) {
- isdir = 1;
- fnamecopy[idx] = '\0';
- subname = fnamecopy + idx + 1;
- /* Handle multiple delimiters */
- while (ISDIRDELIM (*subname))
- subname++;
- } else if (dols) {
- isdir = 1;
- }
-
- while (1) {
- int i;
-
- if (disk_read (cursect, mydata->clust_size, do_fat_read_block) < 0) {
- printf ("Error: reading rootdir block\n");
- return -1;
- }
- dentptr = (dir_entry *) do_fat_read_block;
- for (i = 0; i < DIRENTSPERBLOCK; i++) {
- char s_name[14], l_name[256];
-
- l_name[0] = '\0';
- if ((dentptr->attr & ATTR_VOLUME)) {
- /* Volume label or VFAT entry */
- dentptr++;
- continue;
- } else if (dentptr->name[0] == 0) {
- FAT_DPRINT ("RootDentname == NULL - %d\n", i);
- if (dols == LS_ROOT) {
- printf ("\n%d file(s), %d dir(s)\n\n", files, dirs);
- return 0;
- }
- return -1;
- }
-#ifdef CONFIG_SUPPORT_VFAT
- else if (dols == LS_ROOT
- && mkcksum (dentptr->name) == prevcksum) {
- dentptr++;
- continue;
- }
-#endif
- get_name (dentptr, s_name);
- if (dols == LS_ROOT) {
- int isdir = (dentptr->attr & ATTR_DIR);
- char dirc;
- int doit = 0;
-
- if (isdir) {
- dirc = '/';
- if (s_name[0] != 0) {
- dirs++;
- doit = 1;
- }
- } else {
- dirc = ' ';
- if (s_name[0] != 0) {
- files++;
- doit = 1;
- }
- }
- if (doit) {
- if (dirc == ' ') {
- printf (" %8ld %s%c\n",
- (long) FAT2CPU32 (dentptr->size), s_name,
- dirc);
- } else {
- printf (" %s%c\n", s_name, dirc);
- }
- }
- dentptr++;
- continue;
- }
- if (strcmp (fnamecopy, s_name) && strcmp (fnamecopy, l_name)) {
- FAT_DPRINT ("RootMismatch: |%s|%s|\n", s_name, l_name);
- dentptr++;
- continue;
- }
- if (isdir && !(dentptr->attr & ATTR_DIR))
- return -1;
-
- FAT_DPRINT ("RootName: %s", s_name);
- FAT_DPRINT (", start: 0x%x", START (dentptr));
- FAT_DPRINT (", size: 0x%x %s\n",
- FAT2CPU32 (dentptr->size), isdir ? "(DIR)" : "");
-
- goto rootdir_done; /* We got a match */
- }
- cursect++;
- }
- rootdir_done:
-
- firsttime = 1;
- while (isdir) {
- int startsect = mydata->data_begin
- + START (dentptr) * mydata->clust_size;
- dir_entry dent;
- char *nextname = NULL;
-
- dent = *dentptr;
- dentptr = &dent;
- idx = dirdelim (subname);
- if (idx >= 0) {
- subname[idx] = '\0';
- nextname = subname + idx + 1;
- /* Handle multiple delimiters */
- while (ISDIRDELIM (*nextname))
- nextname++;
- if (dols && *nextname == '\0')
- firsttime = 0;
- } else {
- if (dols && firsttime) {
- firsttime = 0;
- } else {
- isdir = 0;
- }
- }
-
- if (get_dentfromdir (mydata, startsect, subname, dentptr,
- isdir ? 0 : dols) == NULL) {
- if (dols && !isdir)
- return 0;
- return -1;
- }
-
- if (idx >= 0) {
- if (!(dentptr->attr & ATTR_DIR))
- return -1;
- subname = nextname;
- }
- }
- ret = get_contents (mydata, dentptr, buffer, maxsize);
- FAT_DPRINT ("Size: %d, got: %ld\n", FAT2CPU32 (dentptr->size), ret);
-
- return ret;
-}
-
-
-int
-file_fat_detectfs(void)
-{
- boot_sector bs;
- volume_info volinfo;
- int fatsize;
- char vol_label[12];
-
- if(cur_dev==NULL) {
- printf("No current device\n");
- return 1;
- }
-#if (CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI) || \
- (CONFIG_COMMANDS & CFG_CMD_USB) || (CONFIG_MMC)
- printf("Interface: ");
- switch(cur_dev->if_type) {
- case IF_TYPE_IDE : printf("IDE"); break;
- case IF_TYPE_SCSI : printf("SCSI"); break;
- case IF_TYPE_ATAPI : printf("ATAPI"); break;
- case IF_TYPE_USB : printf("USB"); break;
- case IF_TYPE_DOC : printf("DOC"); break;
- case IF_TYPE_MMC : printf("MMC"); break;
- default : printf("Unknown");
- }
- printf("\n Device %d: ",cur_dev->dev);
- dev_print(cur_dev);
-#endif
- if(read_bootsectandvi(&bs, &volinfo, &fatsize)) {
- printf("\nNo valid FAT fs found\n");
- return 1;
- }
- memcpy (vol_label, volinfo.volume_label, 11);
- vol_label[11] = '\0';
- volinfo.fs_type[5]='\0';
- printf("Partition %d: Filesystem: %s \"%s\"\n",cur_part,volinfo.fs_type,vol_label);
- return 0;
-}
-
-
-int
-file_fat_ls(const char *dir)
-{
- return do_fat_read(dir, NULL, 0, LS_YES);
-}
-
-
-long
-file_fat_read(const char *filename, void *buffer, unsigned long maxsize)
-{
- long ret;
- ret = do_fat_read(filename, buffer, maxsize, LS_NO);
- return ret;
-}
-
-#endif /* #if (CONFIG_COMMANDS & CFG_CMD_FAT) */