diff options
Diffstat (limited to 'fs/fat')
| -rw-r--r-- | fs/fat/fat.c | 64 | ||||
| -rw-r--r-- | fs/fat/file.c | 4 |
2 files changed, 43 insertions, 25 deletions
diff --git a/fs/fat/fat.c b/fs/fat/fat.c index a823b5a..e98e50a 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -31,7 +31,7 @@ #include <asm/byteorder.h> #include <part.h> -#if (CONFIG_COMMANDS & CFG_CMD_FAT) +#if defined(CONFIG_CMD_FAT) /* * Convert a string to lowercase. @@ -59,7 +59,8 @@ int disk_read (__u32 startblock, __u32 getsize, __u8 * bufptr) 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 cur_dev->block_read (cur_dev->dev + , startblock, getsize, (unsigned long *)bufptr); } return -1; } @@ -69,10 +70,11 @@ int fat_register_device(block_dev_desc_t *dev_desc, int part_no) { unsigned char buffer[SECTOR_SIZE]; + disk_partition_t info; if (!dev_desc->block_read) return -1; - cur_dev=dev_desc; + 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); @@ -87,27 +89,40 @@ fat_register_device(block_dev_desc_t *dev_desc, int part_no) /* 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) || defined(CONFIG_SYSTEMACE) - disk_partition_t info; - if(!get_partition_info(dev_desc, part_no, &info)) { + } else { +#if (defined(CONFIG_CMD_IDE) || \ + defined(CONFIG_CMD_SCSI) || \ + defined(CONFIG_CMD_USB) || \ + (defined(CONFIG_MMC) && defined(CONFIG_LPC2292)) || \ + defined(CONFIG_SYSTEMACE) ) + /* First we assume, there is a MBR */ + 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); + } else 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 { + 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=32; - cur_part = 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; + info.start = part_offset; + } 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 = 32; + cur_part = 1; + } #endif } return 0; @@ -971,8 +986,10 @@ file_fat_detectfs(void) 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) +#if defined(CONFIG_CMD_IDE) || \ + defined(CONFIG_CMD_SCSI) || \ + defined(CONFIG_CMD_USB) || \ + (CONFIG_MMC) printf("Interface: "); switch(cur_dev->if_type) { case IF_TYPE_IDE : printf("IDE"); break; @@ -993,7 +1010,8 @@ file_fat_detectfs(void) 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); + printf("Partition %d: Filesystem: %s \"%s\"\n" + ,cur_part,volinfo.fs_type,vol_label); return 0; } @@ -1012,4 +1030,4 @@ file_fat_read(const char *filename, void *buffer, unsigned long maxsize) return do_fat_read(filename, buffer, maxsize, LS_NO); } -#endif /* #if (CONFIG_COMMANDS & CFG_CMD_FAT) */ +#endif diff --git a/fs/fat/file.c b/fs/fat/file.c index f999ac5..514dbae 100644 --- a/fs/fat/file.c +++ b/fs/fat/file.c @@ -32,7 +32,7 @@ #include <linux/stat.h> #include <linux/time.h> -#if (CONFIG_COMMANDS & CFG_CMD_FAT) +#if defined(CONFIG_CMD_FAT) /* Supported filesystems */ static const struct filesystem filesystems[] = { @@ -205,4 +205,4 @@ file_read(const char *filename, void *buffer, unsigned long maxsize) return filesystems[current_filesystem].read(arg, buffer, maxsize); } -#endif /* #if (CONFIG_COMMANDS & CFG_CMD_FAT) */ +#endif |