diff options
| -rw-r--r-- | fs/ext4/ext4fs.c | 37 | ||||
| -rw-r--r-- | fs/fat/fat.c | 17 | ||||
| -rw-r--r-- | fs/fs.c | 118 | ||||
| -rw-r--r-- | include/ext4fs.h | 3 | ||||
| -rw-r--r-- | include/fat.h | 2 |
5 files changed, 67 insertions, 110 deletions
diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c index 7fdb463..4dddde2 100644 --- a/fs/ext4/ext4fs.c +++ b/fs/ext4/ext4fs.c @@ -191,3 +191,40 @@ int ext4fs_read(char *buf, unsigned len) return ext4fs_read_file(ext4fs_file, 0, len, buf); } + +int ext4fs_probe(block_dev_desc_t *fs_dev_desc, + disk_partition_t *fs_partition) +{ + ext4fs_set_blk_dev(fs_dev_desc, fs_partition); + + if (!ext4fs_mount(fs_partition->size)) { + ext4fs_close(); + return -1; + } + + return 0; +} + +int ext4_read_file(const char *filename, void *buf, int offset, int len) +{ + int file_len; + int len_read; + + if (offset != 0) { + printf("** Cannot support non-zero offset **\n"); + return -1; + } + + file_len = ext4fs_open(filename); + if (file_len < 0) { + printf("** File not found %s **\n", filename); + return -1; + } + + if (len == 0) + len = file_len; + + len_read = ext4fs_read(buf, len); + + return len_read; +} diff --git a/fs/fat/fat.c b/fs/fat/fat.c index 66d5473..b0fac5e 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -1260,3 +1260,20 @@ 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) +{ +} @@ -50,110 +50,6 @@ static inline void fs_close_unsupported(void) { } -#ifdef CONFIG_FS_FAT -static int fs_probe_fat(block_dev_desc_t *fs_dev_desc, - disk_partition_t *fs_partition) -{ - return fat_set_blk_dev(fs_dev_desc, fs_partition); -} - -static void fs_close_fat(void) -{ -} - -#define fs_ls_fat file_fat_ls - -static int fs_read_fat(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; -} -#else -static inline int fs_probe_fat(void) -{ - return -1; -} - -static inline void fs_close_fat(void) -{ -} - -#define fs_ls_fat fs_ls_unsupported -#define fs_read_fat fs_read_unsupported -#endif - -#ifdef CONFIG_FS_EXT4 -static int fs_probe_ext(block_dev_desc_t *fs_dev_desc, - disk_partition_t *fs_partition) -{ - ext4fs_set_blk_dev(fs_dev_desc, fs_partition); - - if (!ext4fs_mount(fs_partition->size)) { - ext4fs_close(); - return -1; - } - - return 0; -} - -static void fs_close_ext(void) -{ - ext4fs_close(); -} - -#define fs_ls_ext ext4fs_ls - -static int fs_read_ext(const char *filename, void *buf, int offset, int len) -{ - int file_len; - int len_read; - - if (offset != 0) { - printf("** Cannot support non-zero offset **\n"); - return -1; - } - - file_len = ext4fs_open(filename); - if (file_len < 0) { - printf("** File not found %s **\n", filename); - ext4fs_close(); - return -1; - } - - if (len == 0) - len = file_len; - - len_read = ext4fs_read(buf, len); - ext4fs_close(); - - if (len_read != len) { - printf("** Unable to read file %s **\n", filename); - return -1; - } - - return len_read; -} -#else -static inline int fs_probe_ext(void) -{ - return -1; -} - -static inline void fs_close_ext(void) -{ -} - -#define fs_ls_ext fs_ls_unsupported -#define fs_read_ext fs_read_unsupported -#endif - struct fstype_info { int fstype; int (*probe)(block_dev_desc_t *fs_dev_desc, @@ -167,19 +63,19 @@ static struct fstype_info fstypes[] = { #ifdef CONFIG_FS_FAT { .fstype = FS_TYPE_FAT, - .probe = fs_probe_fat, - .close = fs_close_fat, + .probe = fat_set_blk_dev, + .close = fat_close, .ls = file_fat_ls, - .read = fs_read_fat, + .read = fat_read_file, }, #endif #ifdef CONFIG_FS_EXT4 { .fstype = FS_TYPE_EXT, - .probe = fs_probe_ext, - .close = fs_close_ext, + .probe = ext4fs_probe, + .close = ext4fs_close, .ls = ext4fs_ls, - .read = fs_read_ext, + .read = ext4_read_file, }, #endif { @@ -248,6 +144,7 @@ static void fs_close(void) struct fstype_info *info = fs_get_info(fs_type); info->close(); + fs_type = FS_TYPE_ANY; } @@ -259,6 +156,7 @@ int fs_ls(const char *dirname) ret = info->ls(dirname); + fs_type = FS_TYPE_ANY; fs_close(); return ret; diff --git a/include/ext4fs.h b/include/ext4fs.h index 3b59d15..025a2e8 100644 --- a/include/ext4fs.h +++ b/include/ext4fs.h @@ -138,4 +138,7 @@ void ext4fs_free_node(struct ext2fs_node *node, struct ext2fs_node *currroot); int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf); void ext4fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info); long int read_allocated_block(struct ext2_inode *inode, int fileblock); +int ext4fs_probe(block_dev_desc_t *fs_dev_desc, + disk_partition_t *fs_partition); +int ext4_read_file(const char *filename, void *buf, int offset, int len); #endif diff --git a/include/fat.h b/include/fat.h index b28c3fd..9701323 100644 --- a/include/fat.h +++ b/include/fat.h @@ -213,4 +213,6 @@ int fat_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info); int fat_register_device(block_dev_desc_t *dev_desc, int part_no); int file_fat_write(const char *filename, void *buffer, unsigned long maxsize); +int fat_read_file(const char *filename, void *buf, int offset, int len); +void fat_close(void); #endif /* _FAT_H_ */ |