diff options
Diffstat (limited to 'drivers/staging/exfat/exfat.h')
-rw-r--r-- | drivers/staging/exfat/exfat.h | 186 |
1 files changed, 24 insertions, 162 deletions
diff --git a/drivers/staging/exfat/exfat.h b/drivers/staging/exfat/exfat.h index 3abab33e932c..2aac1e000977 100644 --- a/drivers/staging/exfat/exfat.h +++ b/drivers/staging/exfat/exfat.h @@ -30,6 +30,8 @@ #undef DEBUG #endif +#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */ + #define DENTRY_SIZE 32 /* dir entry size */ #define DENTRY_SIZE_BITS 5 @@ -206,28 +208,6 @@ static inline u16 get_row_index(u16 i) #define FM_REGULAR 0x00 #define FM_SYMLINK 0x40 -/* return values */ -#define FFS_SUCCESS 0 -#define FFS_MEDIAERR 1 -#define FFS_FORMATERR 2 -#define FFS_MOUNTED 3 -#define FFS_NOTMOUNTED 4 -#define FFS_ALIGNMENTERR 5 -#define FFS_SEMAPHOREERR 6 -#define FFS_INVALIDPATH 7 -#define FFS_INVALIDFID 8 -#define FFS_NOTFOUND 9 -#define FFS_FILEEXIST 10 -#define FFS_PERMISSIONERR 11 -#define FFS_NOTOPENED 12 -#define FFS_MAXOPENED 13 -#define FFS_FULL 14 -#define FFS_EOF 15 -#define FFS_DIRBUSY 16 -#define FFS_MEMORYERR 17 -#define FFS_NAMETOOLONG 18 -#define FFS_ERROR 19 - #define NUM_UPCASE 2918 #define DOS_CUR_DIR_NAME ". " @@ -618,7 +598,7 @@ struct fs_info_t { u32 dev_ejected; /* block device operation error flag */ struct fs_func *fs_func; - struct semaphore v_sem; + struct mutex v_mutex; /* FAT cache */ struct buf_cache_t FAT_cache_array[FAT_CACHE_SIZE]; @@ -749,14 +729,7 @@ static inline struct exfat_inode_info *EXFAT_I(struct inode *inode) /* NLS management function */ u16 nls_upper(struct super_block *sb, u16 a); -int nls_dosname_cmp(struct super_block *sb, u8 *a, u8 *b); int nls_uniname_cmp(struct super_block *sb, u16 *a, u16 *b); -void nls_uniname_to_dosname(struct super_block *sb, - struct dos_name_t *p_dosname, - struct uni_name_t *p_uniname, bool *p_lossy); -void nls_dosname_to_uniname(struct super_block *sb, - struct uni_name_t *p_uniname, - struct dos_name_t *p_dosname); void nls_uniname_to_cstring(struct super_block *sb, u8 *p_cstring, struct uni_name_t *p_uniname); void nls_cstring_to_uniname(struct super_block *sb, @@ -764,48 +737,33 @@ void nls_cstring_to_uniname(struct super_block *sb, bool *p_lossy); /* buffer cache management */ -void buf_init(struct super_block *sb); -void buf_shutdown(struct super_block *sb); -int FAT_read(struct super_block *sb, u32 loc, u32 *content); -s32 FAT_write(struct super_block *sb, u32 loc, u32 content); -u8 *FAT_getblk(struct super_block *sb, sector_t sec); -void FAT_modify(struct super_block *sb, sector_t sec); -void FAT_release_all(struct super_block *sb); -void FAT_sync(struct super_block *sb); -u8 *buf_getblk(struct super_block *sb, sector_t sec); -void buf_modify(struct super_block *sb, sector_t sec); -void buf_lock(struct super_block *sb, sector_t sec); -void buf_unlock(struct super_block *sb, sector_t sec); -void buf_release(struct super_block *sb, sector_t sec); -void buf_release_all(struct super_block *sb); -void buf_sync(struct super_block *sb); +void exfat_buf_init(struct super_block *sb); +void exfat_buf_shutdown(struct super_block *sb); +int exfat_fat_read(struct super_block *sb, u32 loc, u32 *content); +s32 exfat_fat_write(struct super_block *sb, u32 loc, u32 content); +u8 *exfat_fat_getblk(struct super_block *sb, sector_t sec); +void exfat_fat_modify(struct super_block *sb, sector_t sec); +void exfat_fat_release_all(struct super_block *sb); +void exfat_fat_sync(struct super_block *sb); +u8 *exfat_buf_getblk(struct super_block *sb, sector_t sec); +void exfat_buf_modify(struct super_block *sb, sector_t sec); +void exfat_buf_lock(struct super_block *sb, sector_t sec); +void exfat_buf_unlock(struct super_block *sb, sector_t sec); +void exfat_buf_release(struct super_block *sb, sector_t sec); +void exfat_buf_release_all(struct super_block *sb); +void exfat_buf_sync(struct super_block *sb); /* fs management functions */ void fs_set_vol_flags(struct super_block *sb, u32 new_flag); void fs_error(struct super_block *sb); /* cluster management functions */ -s32 clear_cluster(struct super_block *sb, u32 clu); -s32 fat_alloc_cluster(struct super_block *sb, s32 num_alloc, - struct chain_t *p_chain); -s32 exfat_alloc_cluster(struct super_block *sb, s32 num_alloc, - struct chain_t *p_chain); -void fat_free_cluster(struct super_block *sb, struct chain_t *p_chain, - s32 do_relse); -void exfat_free_cluster(struct super_block *sb, struct chain_t *p_chain, - s32 do_relse); -u32 find_last_cluster(struct super_block *sb, struct chain_t *p_chain); s32 count_num_clusters(struct super_block *sb, struct chain_t *dir); -s32 fat_count_used_clusters(struct super_block *sb); -s32 exfat_count_used_clusters(struct super_block *sb); void exfat_chain_cont_cluster(struct super_block *sb, u32 chain, s32 len); /* allocation bitmap management functions */ s32 load_alloc_bitmap(struct super_block *sb); void free_alloc_bitmap(struct super_block *sb); -s32 set_alloc_bitmap(struct super_block *sb, u32 clu); -s32 clr_alloc_bitmap(struct super_block *sb, u32 clu); -u32 test_alloc_bitmap(struct super_block *sb, u32 clu); void sync_alloc_bitmap(struct super_block *sb); /* upcase table management functions */ @@ -813,63 +771,8 @@ s32 load_upcase_table(struct super_block *sb); void free_upcase_table(struct super_block *sb); /* dir entry management functions */ -u32 fat_get_entry_type(struct dentry_t *p_entry); -u32 exfat_get_entry_type(struct dentry_t *p_entry); -void fat_set_entry_type(struct dentry_t *p_entry, u32 type); -void exfat_set_entry_type(struct dentry_t *p_entry, u32 type); -u32 fat_get_entry_attr(struct dentry_t *p_entry); -u32 exfat_get_entry_attr(struct dentry_t *p_entry); -void fat_set_entry_attr(struct dentry_t *p_entry, u32 attr); -void exfat_set_entry_attr(struct dentry_t *p_entry, u32 attr); -u8 fat_get_entry_flag(struct dentry_t *p_entry); -u8 exfat_get_entry_flag(struct dentry_t *p_entry); -void fat_set_entry_flag(struct dentry_t *p_entry, u8 flag); -void exfat_set_entry_flag(struct dentry_t *p_entry, u8 flag); -u32 fat_get_entry_clu0(struct dentry_t *p_entry); -u32 exfat_get_entry_clu0(struct dentry_t *p_entry); -void fat_set_entry_clu0(struct dentry_t *p_entry, u32 start_clu); -void exfat_set_entry_clu0(struct dentry_t *p_entry, u32 start_clu); -u64 fat_get_entry_size(struct dentry_t *p_entry); -u64 exfat_get_entry_size(struct dentry_t *p_entry); -void fat_set_entry_size(struct dentry_t *p_entry, u64 size); -void exfat_set_entry_size(struct dentry_t *p_entry, u64 size); struct timestamp_t *tm_current(struct timestamp_t *tm); -void fat_get_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, - u8 mode); -void exfat_get_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, - u8 mode); -void fat_set_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, - u8 mode); -void exfat_set_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, - u8 mode); -s32 fat_init_dir_entry(struct super_block *sb, struct chain_t *p_dir, s32 entry, - u32 type, u32 start_clu, u64 size); -s32 exfat_init_dir_entry(struct super_block *sb, struct chain_t *p_dir, - s32 entry, u32 type, u32 start_clu, u64 size); -s32 fat_init_ext_dir_entry(struct super_block *sb, struct chain_t *p_dir, - s32 entry, s32 num_entries, - struct uni_name_t *p_uniname, - struct dos_name_t *p_dosname); -s32 exfat_init_ext_dir_entry(struct super_block *sb, struct chain_t *p_dir, - s32 entry, s32 num_entries, - struct uni_name_t *p_uniname, - struct dos_name_t *p_dosname); -void init_dos_entry(struct dos_dentry_t *ep, u32 type, u32 start_clu); -void init_ext_entry(struct ext_dentry_t *ep, s32 order, u8 chksum, - u16 *uniname); -void init_file_entry(struct file_dentry_t *ep, u32 type); -void init_strm_entry(struct strm_dentry_t *ep, u8 flags, u32 start_clu, - u64 size); -void init_name_entry(struct name_dentry_t *ep, u16 *uniname); -void fat_delete_dir_entry(struct super_block *sb, struct chain_t *p_dir, - s32 entry, s32 order, s32 num_entries); -void exfat_delete_dir_entry(struct super_block *sb, struct chain_t *p_dir, - s32 entry, s32 order, s32 num_entries); - -s32 find_location(struct super_block *sb, struct chain_t *p_dir, s32 entry, - sector_t *sector, s32 *offset); -struct dentry_t *get_entry_with_sector(struct super_block *sb, sector_t sector, - s32 offset); + struct dentry_t *get_entry_in_dir(struct super_block *sb, struct chain_t *p_dir, s32 entry, sector_t *sector); struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb, @@ -877,24 +780,6 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb, u32 type, struct dentry_t **file_ep); void release_entry_set(struct entry_set_cache_t *es); -s32 write_whole_entry_set(struct super_block *sb, struct entry_set_cache_t *es); -s32 write_partial_entries_in_entry_set(struct super_block *sb, - struct entry_set_cache_t *es, - struct dentry_t *ep, u32 count); -s32 search_deleted_or_unused_entry(struct super_block *sb, - struct chain_t *p_dir, s32 num_entries); -s32 find_empty_entry(struct inode *inode, struct chain_t *p_dir, - s32 num_entries); -s32 fat_find_dir_entry(struct super_block *sb, struct chain_t *p_dir, - struct uni_name_t *p_uniname, s32 num_entries, - struct dos_name_t *p_dosname, u32 type); -s32 exfat_find_dir_entry(struct super_block *sb, struct chain_t *p_dir, - struct uni_name_t *p_uniname, s32 num_entries, - struct dos_name_t *p_dosname, u32 type); -s32 fat_count_ext_entries(struct super_block *sb, struct chain_t *p_dir, - s32 entry, struct dentry_t *p_entry); -s32 exfat_count_ext_entries(struct super_block *sb, struct chain_t *p_dir, - s32 entry, struct dentry_t *p_entry); s32 count_dos_name_entries(struct super_block *sb, struct chain_t *p_dir, u32 type); void update_dir_checksum(struct super_block *sb, struct chain_t *p_dir, @@ -907,36 +792,13 @@ bool is_dir_empty(struct super_block *sb, struct chain_t *p_dir); s32 get_num_entries_and_dos_name(struct super_block *sb, struct chain_t *p_dir, struct uni_name_t *p_uniname, s32 *entries, struct dos_name_t *p_dosname); -void get_uni_name_from_dos_entry(struct super_block *sb, - struct dos_dentry_t *ep, - struct uni_name_t *p_uniname, u8 mode); -void fat_get_uni_name_from_ext_entry(struct super_block *sb, - struct chain_t *p_dir, s32 entry, - u16 *uniname); -void exfat_get_uni_name_from_ext_entry(struct super_block *sb, - struct chain_t *p_dir, s32 entry, - u16 *uniname); -s32 extract_uni_name_from_ext_entry(struct ext_dentry_t *ep, - u16 *uniname, s32 order); -s32 extract_uni_name_from_name_entry(struct name_dentry_t *ep, - u16 *uniname, s32 order); -s32 fat_generate_dos_name(struct super_block *sb, struct chain_t *p_dir, - struct dos_name_t *p_dosname); -void fat_attach_count_to_dos_name(u8 *dosname, s32 count); -s32 fat_calc_num_entries(struct uni_name_t *p_uniname); -s32 exfat_calc_num_entries(struct uni_name_t *p_uniname); -u8 calc_checksum_1byte(void *data, s32 len, u8 chksum); u16 calc_checksum_2byte(void *data, s32 len, u16 chksum, s32 type); -u32 calc_checksum_4byte(void *data, s32 len, u32 chksum, s32 type); /* name resolution functions */ s32 resolve_path(struct inode *inode, char *path, struct chain_t *p_dir, struct uni_name_t *p_uniname); -s32 resolve_name(u8 *name, u8 **arg); /* file operation functions */ -s32 fat16_mount(struct super_block *sb, struct pbr_sector_t *p_pbr); -s32 fat32_mount(struct super_block *sb, struct pbr_sector_t *p_pbr); s32 exfat_mount(struct super_block *sb, struct pbr_sector_t *p_pbr); s32 create_dir(struct inode *inode, struct chain_t *p_dir, struct uni_name_t *p_uniname, struct file_id_t *fid); @@ -959,13 +821,13 @@ int multi_sector_read(struct super_block *sb, sector_t sec, int multi_sector_write(struct super_block *sb, sector_t sec, struct buffer_head *bh, s32 num_secs, bool sync); -void bdev_open(struct super_block *sb); -void bdev_close(struct super_block *sb); -int bdev_read(struct super_block *sb, sector_t secno, +void exfat_bdev_open(struct super_block *sb); +void exfat_bdev_close(struct super_block *sb); +int exfat_bdev_read(struct super_block *sb, sector_t secno, struct buffer_head **bh, u32 num_secs, bool read); -int bdev_write(struct super_block *sb, sector_t secno, +int exfat_bdev_write(struct super_block *sb, sector_t secno, struct buffer_head *bh, u32 num_secs, bool sync); -int bdev_sync(struct super_block *sb); +int exfat_bdev_sync(struct super_block *sb); extern const u8 uni_upcase[]; #endif /* _EXFAT_H */ |