* 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <part.h>
#include <malloc.h>
#include <linux/compiler.h>
+#include <linux/ctype.h>
+
+#ifdef CONFIG_SUPPORT_VFAT
+static const int vfat_enabled = 1;
+#else
+static const int vfat_enabled = 0;
+#endif
/*
* Convert a string to lowercase.
static void downcase(char *str)
{
while (*str != '\0') {
- TOLOWER(*str);
+ *str = tolower(*str);
str++;
}
}
static block_dev_desc_t *cur_dev;
-static unsigned int cur_part_nr;
static disk_partition_t cur_part_info;
#define DOS_BOOT_MAGIC_OFFSET 0x1fe
cur_part_info.start + block, nr_blocks, buf);
}
-int fat_register_device(block_dev_desc_t * dev_desc, int part_no)
+int fat_set_blk_dev(block_dev_desc_t *dev_desc, disk_partition_t *info)
{
ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, dev_desc->blksz);
- /* First close any currently found FAT filesystem */
- cur_dev = NULL;
-
-#if (defined(CONFIG_CMD_IDE) || \
- defined(CONFIG_CMD_SATA) || \
- defined(CONFIG_CMD_SCSI) || \
- defined(CONFIG_CMD_USB) || \
- defined(CONFIG_MMC) || \
- defined(CONFIG_SYSTEMACE) )
-
- /* Read the partition table, if present */
- if (!get_partition_info(dev_desc, part_no, &cur_part_info)) {
- cur_dev = dev_desc;
- cur_part_nr = part_no;
- }
-#endif
-
- /* Otherwise it might be a superfloppy (whole-disk FAT filesystem) */
- if (!cur_dev) {
- if (part_no != 0) {
- printf("** Partition %d not valid on device %d **\n",
- part_no, dev_desc->dev);
- return -1;
- }
-
- cur_dev = dev_desc;
- cur_part_nr = 1;
- cur_part_info.start = 0;
- cur_part_info.size = dev_desc->lba;
- cur_part_info.blksz = dev_desc->blksz;
- memset(cur_part_info.name, 0, sizeof(cur_part_info.name));
- memset(cur_part_info.type, 0, sizeof(cur_part_info.type));
- }
+ cur_dev = dev_desc;
+ cur_part_info = *info;
/* Make sure it has a valid FAT header */
if (disk_read(0, 1, buffer) != 1) {
return -1;
}
+int fat_register_device(block_dev_desc_t *dev_desc, int part_no)
+{
+ disk_partition_t info;
+
+ /* First close any currently found FAT filesystem */
+ cur_dev = NULL;
+
+ /* Read the partition table, if present */
+ if (get_partition_info(dev_desc, part_no, &info)) {
+ if (part_no != 0) {
+ printf("** Partition %d not valid on device %d **\n",
+ part_no, dev_desc->dev);
+ return -1;
+ }
+
+ info.start = 0;
+ info.size = dev_desc->lba;
+ info.blksz = dev_desc->blksz;
+ info.name[0] = 0;
+ info.type[0] = 0;
+ info.bootable = 0;
+#ifdef CONFIG_PARTITION_UUIDS
+ info.uuid[0] = 0;
+#endif
+ }
+
+ return fat_set_blk_dev(dev_desc, &info);
+}
/*
* Get the first occurence of a directory delimiter ('/' or '\') in a string.
} while (1);
}
-#ifdef CONFIG_SUPPORT_VFAT
/*
* Extract the file name information from 'slotptr' into 'l_name',
* starting at l_name[*idx].
__u8 ret = 0;
- for (i = 0; i < sizeof(name); i++)
+ for (i = 0; i < 8; i++)
ret = (((ret & 1) << 7) | ((ret & 0xfe) >> 1)) + name[i];
- for (i = 0; i < sizeof(ext); i++)
+ for (i = 0; i < 3; i++)
ret = (((ret & 1) << 7) | ((ret & 0xfe) >> 1)) + ext[i];
return ret;
}
-#endif /* CONFIG_SUPPORT_VFAT */
/*
* Get the directory entry associated with 'filename' from the directory
continue;
}
if ((dentptr->attr & ATTR_VOLUME)) {
-#ifdef CONFIG_SUPPORT_VFAT
- if ((dentptr->attr & ATTR_VFAT) == ATTR_VFAT &&
+ if (vfat_enabled &&
+ (dentptr->attr & ATTR_VFAT) == ATTR_VFAT &&
(dentptr->name[0] & LAST_LONG_ENTRY_MASK)) {
prevcksum = ((dir_slot *)dentptr)->alias_checksum;
get_vfatname(mydata, curclust,
continue;
}
debug("vfatname: |%s|\n", l_name);
- } else
-#endif
- {
+ } else {
/* Volume label or VFAT entry */
dentptr++;
continue;
debug("Dentname == NULL - %d\n", i);
return NULL;
}
-#ifdef CONFIG_SUPPORT_VFAT
- __u8 csum = mkcksum(dentptr->name, dentptr->ext);
- if (dols && csum == prevcksum) {
- prevcksum = 0xffff;
- dentptr++;
- continue;
+ if (vfat_enabled) {
+ __u8 csum = mkcksum(dentptr->name, dentptr->ext);
+ if (dols && csum == prevcksum) {
+ prevcksum = 0xffff;
+ dentptr++;
+ continue;
+ }
}
-#endif
+
get_name(dentptr, s_name);
if (dols) {
int isdir = (dentptr->attr & ATTR_DIR);
long
do_fat_read_at(const char *filename, unsigned long pos, void *buffer,
- unsigned long maxsize, int dols)
+ unsigned long maxsize, int dols, int dogetsize)
{
char fnamecopy[2048];
boot_sector bs;
return -1;
}
-#ifdef CONFIG_SUPPORT_VFAT
- debug("VFAT Support enabled\n");
-#endif
+ if (vfat_enabled)
+ debug("VFAT Support enabled\n");
+
debug("FAT%d, fat_sect: %d, fatlength: %d\n",
mydata->fatsize, mydata->fat_sect, mydata->fatlength);
debug("Rootdir begins at cluster: %d, sector: %d, offset: %x\n"
continue;
}
- csum = mkcksum(dentptr->name, dentptr->ext);
+ if (vfat_enabled)
+ csum = mkcksum(dentptr->name, dentptr->ext);
+
if (dentptr->attr & ATTR_VOLUME) {
-#ifdef CONFIG_SUPPORT_VFAT
- if ((dentptr->attr & ATTR_VFAT) == ATTR_VFAT &&
+ if (vfat_enabled &&
+ (dentptr->attr & ATTR_VFAT) == ATTR_VFAT &&
(dentptr->name[0] & LAST_LONG_ENTRY_MASK)) {
prevcksum =
((dir_slot *)dentptr)->alias_checksum;
}
debug("Rootvfatname: |%s|\n",
l_name);
- } else
-#endif
- {
+ } else {
/* Volume label or VFAT entry */
dentptr++;
continue;
}
goto exit;
}
-#ifdef CONFIG_SUPPORT_VFAT
- else if (dols == LS_ROOT && csum == prevcksum) {
+ else if (vfat_enabled &&
+ dols == LS_ROOT && csum == prevcksum) {
prevcksum = 0xffff;
dentptr++;
continue;
}
-#endif
+
get_name(dentptr, s_name);
if (dols == LS_ROOT) {
subname = nextname;
}
- ret = get_contents(mydata, dentptr, pos, buffer, maxsize);
+ if (dogetsize)
+ ret = FAT2CPU32(dentptr->size);
+ else
+ ret = get_contents(mydata, dentptr, pos, buffer, maxsize);
debug("Size: %d, got: %ld\n", FAT2CPU32(dentptr->size), ret);
exit:
long
do_fat_read(const char *filename, void *buffer, unsigned long maxsize, int dols)
{
- return do_fat_read_at(filename, 0, buffer, maxsize, dols);
+ return do_fat_read_at(filename, 0, buffer, maxsize, dols, 0);
}
int file_fat_detectfs(void)
vol_label[11] = '\0';
volinfo.fs_type[5] = '\0';
- printf("Partition %d: Filesystem: %s \"%s\"\n", cur_part_nr,
- volinfo.fs_type, vol_label);
+ printf("Filesystem: %s \"%s\"\n", volinfo.fs_type, vol_label);
return 0;
}
return do_fat_read(dir, NULL, 0, LS_YES);
}
+int fat_exists(const char *filename)
+{
+ int sz;
+ sz = do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1);
+ return sz >= 0;
+}
+
long file_fat_read_at(const char *filename, unsigned long pos, void *buffer,
unsigned long maxsize)
{
printf("reading %s\n", filename);
- return do_fat_read_at(filename, pos, buffer, maxsize, LS_NO);
+ return do_fat_read_at(filename, pos, buffer, maxsize, LS_NO, 0);
}
long file_fat_read(const char *filename, void *buffer, unsigned long maxsize)
{
return file_fat_read_at(filename, 0, buffer, maxsize);
}
+
+int fat_read_file(const char *filename, void *buf, int offset, int len)
+{
+ int len_read;
+
+ len_read = file_fat_read_at(filename, offset, buf, len);
+ if (len_read == -1) {
+ printf("** Unable to read file %s **\n", filename);
+ return -1;
+ }
+
+ return len_read;
+}
+
+void fat_close(void)
+{
+}
projects / karo-tx-uboot.git / blobdiff