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-rw-r--r--drivers/staging/exfat/exfat.h824
1 files changed, 0 insertions, 824 deletions
diff --git a/drivers/staging/exfat/exfat.h b/drivers/staging/exfat/exfat.h
deleted file mode 100644
index 4d87360fab35..000000000000
--- a/drivers/staging/exfat/exfat.h
+++ /dev/null
@@ -1,824 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Copyright (C) 2012-2013 Samsung Electronics Co., Ltd.
- */
-
-#ifndef _EXFAT_H
-#define _EXFAT_H
-
-#include <linux/types.h>
-#include <linux/buffer_head.h>
-
-#ifdef CONFIG_STAGING_EXFAT_KERNEL_DEBUG
- /* For Debugging Purpose */
- /* IOCTL code 'f' used by
- * - file systems typically #0~0x1F
- * - embedded terminal devices #128~
- * - exts for debugging purpose #99
- * number 100 and 101 is available now but has possible conflicts
- */
-#define EXFAT_IOC_GET_DEBUGFLAGS _IOR('f', 100, long)
-#define EXFAT_IOC_SET_DEBUGFLAGS _IOW('f', 101, long)
-
-#define EXFAT_DEBUGFLAGS_INVALID_UMOUNT 0x01
-#define EXFAT_DEBUGFLAGS_ERROR_RW 0x02
-#endif /* CONFIG_STAGING_EXFAT_KERNEL_DEBUG */
-
-#ifdef CONFIG_STAGING_EXFAT_DEBUG_MSG
-#define DEBUG 1
-#else
-#undef DEBUG
-#endif
-
-#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
-
-#define DENTRY_SIZE 32 /* dir entry size */
-#define DENTRY_SIZE_BITS 5
-
-/* PBR entries */
-#define PBR_SIGNATURE 0xAA55
-#define EXT_SIGNATURE 0xAA550000
-#define VOL_LABEL "NO NAME " /* size should be 11 */
-#define OEM_NAME "MSWIN4.1" /* size should be 8 */
-#define STR_FAT12 "FAT12 " /* size should be 8 */
-#define STR_FAT16 "FAT16 " /* size should be 8 */
-#define STR_FAT32 "FAT32 " /* size should be 8 */
-#define STR_EXFAT "EXFAT " /* size should be 8 */
-#define VOL_CLEAN 0x0000
-#define VOL_DIRTY 0x0002
-
-/* max number of clusters */
-#define FAT12_THRESHOLD 4087 /* 2^12 - 1 + 2 (clu 0 & 1) */
-#define FAT16_THRESHOLD 65527 /* 2^16 - 1 + 2 */
-#define FAT32_THRESHOLD 268435457 /* 2^28 - 1 + 2 */
-#define EXFAT_THRESHOLD 268435457 /* 2^28 - 1 + 2 */
-
-/* file types */
-#define TYPE_UNUSED 0x0000
-#define TYPE_DELETED 0x0001
-#define TYPE_INVALID 0x0002
-#define TYPE_CRITICAL_PRI 0x0100
-#define TYPE_BITMAP 0x0101
-#define TYPE_UPCASE 0x0102
-#define TYPE_VOLUME 0x0103
-#define TYPE_DIR 0x0104
-#define TYPE_FILE 0x011F
-#define TYPE_SYMLINK 0x015F
-#define TYPE_CRITICAL_SEC 0x0200
-#define TYPE_STREAM 0x0201
-#define TYPE_EXTEND 0x0202
-#define TYPE_ACL 0x0203
-#define TYPE_BENIGN_PRI 0x0400
-#define TYPE_GUID 0x0401
-#define TYPE_PADDING 0x0402
-#define TYPE_ACLTAB 0x0403
-#define TYPE_BENIGN_SEC 0x0800
-#define TYPE_ALL 0x0FFF
-
-/* time modes */
-#define TM_CREATE 0
-#define TM_MODIFY 1
-#define TM_ACCESS 2
-
-/* checksum types */
-#define CS_DIR_ENTRY 0
-#define CS_PBR_SECTOR 1
-#define CS_DEFAULT 2
-
-#define CLUSTER_16(x) ((u16)(x))
-#define CLUSTER_32(x) ((u32)(x))
-
-#define START_SECTOR(x) \
- ((((sector_t)((x) - 2)) << p_fs->sectors_per_clu_bits) + \
- p_fs->data_start_sector)
-
-#define IS_LAST_SECTOR_IN_CLUSTER(sec) \
- ((((sec) - p_fs->data_start_sector + 1) & \
- ((1 << p_fs->sectors_per_clu_bits) - 1)) == 0)
-
-#define GET_CLUSTER_FROM_SECTOR(sec) \
- ((u32)((((sec) - p_fs->data_start_sector) >> \
- p_fs->sectors_per_clu_bits) + 2))
-
-#define GET16(p_src) \
- (((u16)(p_src)[0]) | (((u16)(p_src)[1]) << 8))
-#define GET32(p_src) \
- (((u32)(p_src)[0]) | (((u32)(p_src)[1]) << 8) | \
- (((u32)(p_src)[2]) << 16) | (((u32)(p_src)[3]) << 24))
-#define GET64(p_src) \
- (((u64)(p_src)[0]) | (((u64)(p_src)[1]) << 8) | \
- (((u64)(p_src)[2]) << 16) | (((u64)(p_src)[3]) << 24) | \
- (((u64)(p_src)[4]) << 32) | (((u64)(p_src)[5]) << 40) | \
- (((u64)(p_src)[6]) << 48) | (((u64)(p_src)[7]) << 56))
-
-#define SET16(p_dst, src) \
- do { \
- (p_dst)[0] = (u8)(src); \
- (p_dst)[1] = (u8)(((u16)(src)) >> 8); \
- } while (0)
-#define SET32(p_dst, src) \
- do { \
- (p_dst)[0] = (u8)(src); \
- (p_dst)[1] = (u8)(((u32)(src)) >> 8); \
- (p_dst)[2] = (u8)(((u32)(src)) >> 16); \
- (p_dst)[3] = (u8)(((u32)(src)) >> 24); \
- } while (0)
-#define SET64(p_dst, src) \
- do { \
- (p_dst)[0] = (u8)(src); \
- (p_dst)[1] = (u8)(((u64)(src)) >> 8); \
- (p_dst)[2] = (u8)(((u64)(src)) >> 16); \
- (p_dst)[3] = (u8)(((u64)(src)) >> 24); \
- (p_dst)[4] = (u8)(((u64)(src)) >> 32); \
- (p_dst)[5] = (u8)(((u64)(src)) >> 40); \
- (p_dst)[6] = (u8)(((u64)(src)) >> 48); \
- (p_dst)[7] = (u8)(((u64)(src)) >> 56); \
- } while (0)
-
-#ifdef __LITTLE_ENDIAN
-#define GET16_A(p_src) (*((u16 *)(p_src)))
-#define GET32_A(p_src) (*((u32 *)(p_src)))
-#define GET64_A(p_src) (*((u64 *)(p_src)))
-#define SET16_A(p_dst, src) (*((u16 *)(p_dst)) = (u16)(src))
-#define SET32_A(p_dst, src) (*((u32 *)(p_dst)) = (u32)(src))
-#define SET64_A(p_dst, src) (*((u64 *)(p_dst)) = (u64)(src))
-#else /* BIG_ENDIAN */
-#define GET16_A(p_src) GET16(p_src)
-#define GET32_A(p_src) GET32(p_src)
-#define GET64_A(p_src) GET64(p_src)
-#define SET16_A(p_dst, src) SET16(p_dst, src)
-#define SET32_A(p_dst, src) SET32(p_dst, src)
-#define SET64_A(p_dst, src) SET64(p_dst, src)
-#endif
-
-/* cache size (in number of sectors) */
-/* (should be an exponential value of 2) */
-#define FAT_CACHE_SIZE 128
-#define FAT_CACHE_HASH_SIZE 64
-#define BUF_CACHE_SIZE 256
-#define BUF_CACHE_HASH_SIZE 64
-
-/* Upcase table macro */
-#define HIGH_INDEX_BIT (8)
-#define HIGH_INDEX_MASK (0xFF00)
-#define LOW_INDEX_BIT (16 - HIGH_INDEX_BIT)
-#define UTBL_ROW_COUNT BIT(LOW_INDEX_BIT)
-#define UTBL_COL_COUNT BIT(HIGH_INDEX_BIT)
-
-static inline u16 get_col_index(u16 i)
-{
- return i >> LOW_INDEX_BIT;
-}
-
-static inline u16 get_row_index(u16 i)
-{
- return i & ~HIGH_INDEX_MASK;
-}
-
-#define EXFAT_SUPER_MAGIC (0x2011BAB0L)
-#define EXFAT_ROOT_INO 1
-
-/* FAT types */
-#define FAT12 0x01 /* FAT12 */
-#define FAT16 0x0E /* Win95 FAT16 (LBA) */
-#define FAT32 0x0C /* Win95 FAT32 (LBA) */
-#define EXFAT 0x07 /* exFAT */
-
-/* file name lengths */
-#define MAX_CHARSET_SIZE 3 /* max size of multi-byte character */
-#define MAX_PATH_DEPTH 15 /* max depth of path name */
-#define MAX_NAME_LENGTH 256 /* max len of filename including NULL */
-#define MAX_PATH_LENGTH 260 /* max len of pathname including NULL */
-#define DOS_NAME_LENGTH 11 /* DOS filename length excluding NULL */
-#define DOS_PATH_LENGTH 80 /* DOS pathname length excluding NULL */
-
-/* file attributes */
-#define ATTR_NORMAL 0x0000
-#define ATTR_READONLY 0x0001
-#define ATTR_HIDDEN 0x0002
-#define ATTR_SYSTEM 0x0004
-#define ATTR_VOLUME 0x0008
-#define ATTR_SUBDIR 0x0010
-#define ATTR_ARCHIVE 0x0020
-#define ATTR_SYMLINK 0x0040
-#define ATTR_EXTEND 0x000F
-#define ATTR_RWMASK 0x007E
-
-/* file creation modes */
-#define FM_REGULAR 0x00
-#define FM_SYMLINK 0x40
-
-#define NUM_UPCASE 2918
-
-#define DOS_CUR_DIR_NAME ". "
-#define DOS_PAR_DIR_NAME ".. "
-
-#ifdef __LITTLE_ENDIAN
-#define UNI_CUR_DIR_NAME ".\0"
-#define UNI_PAR_DIR_NAME ".\0.\0"
-#else
-#define UNI_CUR_DIR_NAME "\0."
-#define UNI_PAR_DIR_NAME "\0.\0."
-#endif
-
-struct date_time_t {
- u16 Year;
- u16 Month;
- u16 Day;
- u16 Hour;
- u16 Minute;
- u16 Second;
- u16 MilliSecond;
-};
-
-struct part_info_t {
- u32 Offset; /* start sector number of the partition */
- u32 Size; /* in sectors */
-};
-
-struct dev_info_t {
- u32 SecSize; /* sector size in bytes */
- u32 DevSize; /* block device size in sectors */
-};
-
-struct vol_info_t {
- u32 FatType;
- u32 ClusterSize;
- u32 NumClusters;
- u32 FreeClusters;
- u32 UsedClusters;
-};
-
-/* directory structure */
-struct chain_t {
- u32 dir;
- s32 size;
- u8 flags;
-};
-
-struct file_id_t {
- struct chain_t dir;
- s32 entry;
- u32 type;
- u32 attr;
- u32 start_clu;
- u64 size;
- u8 flags;
- s64 rwoffset;
- s32 hint_last_off;
- u32 hint_last_clu;
-};
-
-struct dir_entry_t {
- char Name[MAX_NAME_LENGTH * MAX_CHARSET_SIZE];
-
- /* used only for FAT12/16/32, not used for exFAT */
- char ShortName[DOS_NAME_LENGTH + 2];
-
- u32 Attr;
- u64 Size;
- u32 NumSubdirs;
- struct date_time_t CreateTimestamp;
- struct date_time_t ModifyTimestamp;
- struct date_time_t AccessTimestamp;
-};
-
-struct timestamp_t {
- u16 sec; /* 0 ~ 59 */
- u16 min; /* 0 ~ 59 */
- u16 hour; /* 0 ~ 23 */
- u16 day; /* 1 ~ 31 */
- u16 mon; /* 1 ~ 12 */
- u16 year; /* 0 ~ 127 (since 1980) */
-};
-
-/* MS_DOS FAT partition boot record (512 bytes) */
-struct pbr_sector_t {
- u8 jmp_boot[3];
- u8 oem_name[8];
- u8 bpb[109];
- u8 boot_code[390];
- u8 signature[2];
-};
-
-/* MS-DOS FAT12/16 BIOS parameter block (51 bytes) */
-struct bpb16_t {
- u8 sector_size[2];
- u8 sectors_per_clu;
- u8 num_reserved[2];
- u8 num_fats;
- u8 num_root_entries[2];
- u8 num_sectors[2];
- u8 media_type;
- u8 num_fat_sectors[2];
- u8 sectors_in_track[2];
- u8 num_heads[2];
- u8 num_hid_sectors[4];
- u8 num_huge_sectors[4];
-
- u8 phy_drv_no;
- u8 reserved;
- u8 ext_signature;
- u8 vol_serial[4];
- u8 vol_label[11];
- u8 vol_type[8];
-};
-
-/* MS-DOS FAT32 BIOS parameter block (79 bytes) */
-struct bpb32_t {
- u8 sector_size[2];
- u8 sectors_per_clu;
- u8 num_reserved[2];
- u8 num_fats;
- u8 num_root_entries[2];
- u8 num_sectors[2];
- u8 media_type;
- u8 num_fat_sectors[2];
- u8 sectors_in_track[2];
- u8 num_heads[2];
- u8 num_hid_sectors[4];
- u8 num_huge_sectors[4];
- u8 num_fat32_sectors[4];
- u8 ext_flags[2];
- u8 fs_version[2];
- u8 root_cluster[4];
- u8 fsinfo_sector[2];
- u8 backup_sector[2];
- u8 reserved[12];
-
- u8 phy_drv_no;
- u8 ext_reserved;
- u8 ext_signature;
- u8 vol_serial[4];
- u8 vol_label[11];
- u8 vol_type[8];
-};
-
-/* MS-DOS EXFAT BIOS parameter block (109 bytes) */
-struct bpbex_t {
- u8 reserved1[53];
- u8 vol_offset[8];
- u8 vol_length[8];
- u8 fat_offset[4];
- u8 fat_length[4];
- u8 clu_offset[4];
- u8 clu_count[4];
- u8 root_cluster[4];
- u8 vol_serial[4];
- u8 fs_version[2];
- u8 vol_flags[2];
- u8 sector_size_bits;
- u8 sectors_per_clu_bits;
- u8 num_fats;
- u8 phy_drv_no;
- u8 perc_in_use;
- u8 reserved2[7];
-};
-
-/* MS-DOS FAT file system information sector (512 bytes) */
-struct fsi_sector_t {
- u8 signature1[4];
- u8 reserved1[480];
- u8 signature2[4];
- u8 free_cluster[4];
- u8 next_cluster[4];
- u8 reserved2[14];
- u8 signature3[2];
-};
-
-/* MS-DOS FAT directory entry (32 bytes) */
-struct dentry_t {
- u8 dummy[32];
-};
-
-struct dos_dentry_t {
- u8 name[DOS_NAME_LENGTH];
- u8 attr;
- u8 lcase;
- u8 create_time_ms;
- u8 create_time[2];
- u8 create_date[2];
- u8 access_date[2];
- u8 start_clu_hi[2];
- u8 modify_time[2];
- u8 modify_date[2];
- u8 start_clu_lo[2];
- u8 size[4];
-};
-
-/* MS-DOS FAT extended directory entry (32 bytes) */
-struct ext_dentry_t {
- u8 order;
- u8 unicode_0_4[10];
- u8 attr;
- u8 sysid;
- u8 checksum;
- u8 unicode_5_10[12];
- u8 start_clu[2];
- u8 unicode_11_12[4];
-};
-
-/* MS-DOS EXFAT file directory entry (32 bytes) */
-struct file_dentry_t {
- u8 type;
- u8 num_ext;
- u8 checksum[2];
- u8 attr[2];
- u8 reserved1[2];
- u8 create_time[2];
- u8 create_date[2];
- u8 modify_time[2];
- u8 modify_date[2];
- u8 access_time[2];
- u8 access_date[2];
- u8 create_time_ms;
- u8 modify_time_ms;
- u8 access_time_ms;
- u8 reserved2[9];
-};
-
-/* MS-DOS EXFAT stream extension directory entry (32 bytes) */
-struct strm_dentry_t {
- u8 type;
- u8 flags;
- u8 reserved1;
- u8 name_len;
- u8 name_hash[2];
- u8 reserved2[2];
- u8 valid_size[8];
- u8 reserved3[4];
- u8 start_clu[4];
- u8 size[8];
-};
-
-/* MS-DOS EXFAT file name directory entry (32 bytes) */
-struct name_dentry_t {
- u8 type;
- u8 flags;
- u8 unicode_0_14[30];
-};
-
-/* MS-DOS EXFAT allocation bitmap directory entry (32 bytes) */
-struct bmap_dentry_t {
- u8 type;
- u8 flags;
- u8 reserved[18];
- u8 start_clu[4];
- u8 size[8];
-};
-
-/* MS-DOS EXFAT up-case table directory entry (32 bytes) */
-struct case_dentry_t {
- u8 type;
- u8 reserved1[3];
- u8 checksum[4];
- u8 reserved2[12];
- u8 start_clu[4];
- u8 size[8];
-};
-
-/* MS-DOS EXFAT volume label directory entry (32 bytes) */
-struct volm_dentry_t {
- u8 type;
- u8 label_len;
- u8 unicode_0_10[22];
- u8 reserved[8];
-};
-
-/* unused entry hint information */
-struct uentry_t {
- u32 dir;
- s32 entry;
- struct chain_t clu;
-};
-
-/* DOS name structure */
-struct dos_name_t {
- u8 name[DOS_NAME_LENGTH];
- u8 name_case;
-};
-
-/* unicode name structure */
-struct uni_name_t {
- u16 name[MAX_NAME_LENGTH];
- u16 name_hash;
- u8 name_len;
-};
-
-struct buf_cache_t {
- struct buf_cache_t *next;
- struct buf_cache_t *prev;
- struct buf_cache_t *hash_next;
- struct buf_cache_t *hash_prev;
- s32 drv;
- sector_t sec;
- u32 flag;
- struct buffer_head *buf_bh;
-};
-
-struct fs_info_t {
- u32 drv; /* drive ID */
- u32 vol_type; /* volume FAT type */
- u32 vol_id; /* volume serial number */
-
- u64 num_sectors; /* num of sectors in volume */
- u32 num_clusters; /* num of clusters in volume */
- u32 cluster_size; /* cluster size in bytes */
- u32 cluster_size_bits;
- u32 sectors_per_clu; /* cluster size in sectors */
- u32 sectors_per_clu_bits;
-
- u32 PBR_sector; /* PBR sector */
- u32 FAT1_start_sector; /* FAT1 start sector */
- u32 FAT2_start_sector; /* FAT2 start sector */
- u32 root_start_sector; /* root dir start sector */
- u32 data_start_sector; /* data area start sector */
- u32 num_FAT_sectors; /* num of FAT sectors */
-
- u32 root_dir; /* root dir cluster */
- u32 dentries_in_root; /* num of dentries in root dir */
- u32 dentries_per_clu; /* num of dentries per cluster */
-
- u32 vol_flag; /* volume dirty flag */
- struct buffer_head *pbr_bh; /* PBR sector */
-
- u32 map_clu; /* allocation bitmap start cluster */
- u32 map_sectors; /* num of allocation bitmap sectors */
- struct buffer_head **vol_amap; /* allocation bitmap */
-
- u16 **vol_utbl; /* upcase table */
-
- u32 clu_srch_ptr; /* cluster search pointer */
- u32 used_clusters; /* number of used clusters */
- struct uentry_t hint_uentry; /* unused entry hint information */
-
- u32 dev_ejected; /* block device operation error flag */
-
- struct mutex v_mutex;
-
- /* FAT cache */
- struct buf_cache_t FAT_cache_array[FAT_CACHE_SIZE];
- struct buf_cache_t FAT_cache_lru_list;
- struct buf_cache_t FAT_cache_hash_list[FAT_CACHE_HASH_SIZE];
-
- /* buf cache */
- struct buf_cache_t buf_cache_array[BUF_CACHE_SIZE];
- struct buf_cache_t buf_cache_lru_list;
- struct buf_cache_t buf_cache_hash_list[BUF_CACHE_HASH_SIZE];
-};
-
-#define ES_2_ENTRIES 2
-#define ES_3_ENTRIES 3
-#define ES_ALL_ENTRIES 0
-
-struct entry_set_cache_t {
- /* sector number that contains file_entry */
- sector_t sector;
-
- /* byte offset in the sector */
- s32 offset;
-
- /*
- * flag in stream entry.
- * 01 for cluster chain,
- * 03 for contig. clusteres.
- */
- s32 alloc_flag;
-
- u32 num_entries;
-
- /* __buf should be the last member */
- void *__buf;
-};
-
-#define EXFAT_ERRORS_CONT 1 /* ignore error and continue */
-#define EXFAT_ERRORS_PANIC 2 /* panic on error */
-#define EXFAT_ERRORS_RO 3 /* remount r/o on error */
-
-/* ioctl command */
-#define EXFAT_IOCTL_GET_VOLUME_ID _IOR('r', 0x12, __u32)
-
-struct exfat_mount_options {
- kuid_t fs_uid;
- kgid_t fs_gid;
- unsigned short fs_fmask;
- unsigned short fs_dmask;
-
- /* permission for setting the [am]time */
- unsigned short allow_utime;
-
- /* codepage for shortname conversions */
- unsigned short codepage;
-
- /* charset for filename input/display */
- char *iocharset;
-
- unsigned char casesensitive;
-
- /* on error: continue, panic, remount-ro */
- unsigned char errors;
-#ifdef CONFIG_STAGING_EXFAT_DISCARD
- /* flag on if -o dicard specified and device support discard() */
- unsigned char discard;
-#endif /* CONFIG_STAGING_EXFAT_DISCARD */
-};
-
-#define EXFAT_HASH_BITS 8
-#define EXFAT_HASH_SIZE BIT(EXFAT_HASH_BITS)
-
-/*
- * EXFAT file system in-core superblock data
- */
-struct bd_info_t {
- s32 sector_size; /* in bytes */
- s32 sector_size_bits;
- s32 sector_size_mask;
-
- /* total number of sectors in this block device */
- s32 num_sectors;
-
- /* opened or not */
- bool opened;
-};
-
-struct exfat_sb_info {
- struct fs_info_t fs_info;
- struct bd_info_t bd_info;
-
- struct exfat_mount_options options;
-
- int s_dirt;
- struct mutex s_lock;
- struct nls_table *nls_disk; /* Codepage used on disk */
- struct nls_table *nls_io; /* Charset used for input and display */
-
- struct inode *fat_inode;
-
- spinlock_t inode_hash_lock;
- struct hlist_head inode_hashtable[EXFAT_HASH_SIZE];
-#ifdef CONFIG_STAGING_EXFAT_KERNEL_DEBUG
- long debug_flags;
-#endif /* CONFIG_STAGING_EXFAT_KERNEL_DEBUG */
-};
-
-/*
- * EXFAT file system inode data in memory
- */
-struct exfat_inode_info {
- struct file_id_t fid;
- char *target;
- /* NOTE: mmu_private is 64bits, so must hold ->i_mutex to access */
- loff_t mmu_private; /* physically allocated size */
- loff_t i_pos; /* on-disk position of directory entry or 0 */
- struct hlist_node i_hash_fat; /* hash by i_location */
- struct rw_semaphore truncate_lock;
- struct inode vfs_inode;
- struct rw_semaphore i_alloc_sem; /* protect bmap against truncate */
-};
-
-#define EXFAT_SB(sb) ((struct exfat_sb_info *)((sb)->s_fs_info))
-
-static inline struct exfat_inode_info *EXFAT_I(struct inode *inode)
-{
- return container_of(inode, struct exfat_inode_info, vfs_inode);
-}
-
-/* NLS management function */
-u16 nls_upper(struct super_block *sb, u16 a);
-int nls_uniname_cmp(struct super_block *sb, u16 *a, u16 *b);
-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,
- struct uni_name_t *p_uniname, u8 *p_cstring,
- bool *p_lossy);
-
-/* buffer cache management */
-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 count_num_clusters(struct super_block *sb, struct chain_t *dir);
-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);
-void sync_alloc_bitmap(struct super_block *sb);
-
-/* upcase table management functions */
-s32 load_upcase_table(struct super_block *sb);
-void free_upcase_table(struct super_block *sb);
-
-/* dir entry management functions */
-struct timestamp_t *tm_current(struct timestamp_t *tm);
-
-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,
- struct chain_t *p_dir, s32 entry,
- u32 type,
- struct dentry_t **file_ep);
-void release_entry_set(struct entry_set_cache_t *es);
-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,
- s32 entry);
-void update_dir_checksum_with_entry_set(struct super_block *sb,
- struct entry_set_cache_t *es);
-bool is_dir_empty(struct super_block *sb, struct chain_t *p_dir);
-
-/* name conversion functions */
-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);
-u16 calc_checksum_2byte(void *data, s32 len, u16 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);
-
-/* file operation functions */
-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);
-s32 create_file(struct inode *inode, struct chain_t *p_dir,
- struct uni_name_t *p_uniname, u8 mode, struct file_id_t *fid);
-void remove_file(struct inode *inode, struct chain_t *p_dir, s32 entry);
-s32 exfat_rename_file(struct inode *inode, struct chain_t *p_dir, s32 old_entry,
- struct uni_name_t *p_uniname, struct file_id_t *fid);
-s32 move_file(struct inode *inode, struct chain_t *p_olddir, s32 oldentry,
- struct chain_t *p_newdir, struct uni_name_t *p_uniname,
- struct file_id_t *fid);
-
-/* sector read/write functions */
-int sector_read(struct super_block *sb, sector_t sec,
- struct buffer_head **bh, bool read);
-int sector_write(struct super_block *sb, sector_t sec,
- struct buffer_head *bh, bool sync);
-int multi_sector_read(struct super_block *sb, sector_t sec,
- struct buffer_head **bh, s32 num_secs, bool read);
-int multi_sector_write(struct super_block *sb, sector_t sec,
- struct buffer_head *bh, s32 num_secs, bool sync);
-
-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 exfat_bdev_write(struct super_block *sb, sector_t secno,
- struct buffer_head *bh, u32 num_secs, bool sync);
-int exfat_bdev_sync(struct super_block *sb);
-
-/* cluster operation functions */
-s32 exfat_alloc_cluster(struct super_block *sb, s32 num_alloc,
- struct chain_t *p_chain);
-void exfat_free_cluster(struct super_block *sb, struct chain_t *p_chain,
- s32 do_relse);
-s32 exfat_count_used_clusters(struct super_block *sb);
-
-/* dir operation functions */
-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);
-void exfat_delete_dir_entry(struct super_block *sb, struct chain_t *p_dir,
- s32 entry, s32 order, s32 num_entries);
-void exfat_get_uni_name_from_ext_entry(struct super_block *sb,
- struct chain_t *p_dir, s32 entry,
- u16 *uniname);
-s32 exfat_count_ext_entries(struct super_block *sb, struct chain_t *p_dir,
- s32 entry, struct dentry_t *p_entry);
-s32 exfat_calc_num_entries(struct uni_name_t *p_uniname);
-
-/* dir entry getter/setter */
-u32 exfat_get_entry_type(struct dentry_t *p_entry);
-u32 exfat_get_entry_attr(struct dentry_t *p_entry);
-void exfat_set_entry_attr(struct dentry_t *p_entry, u32 attr);
-u8 exfat_get_entry_flag(struct dentry_t *p_entry);
-void exfat_set_entry_flag(struct dentry_t *p_entry, u8 flags);
-u32 exfat_get_entry_clu0(struct dentry_t *p_entry);
-void exfat_set_entry_clu0(struct dentry_t *p_entry, u32 start_clu);
-u64 exfat_get_entry_size(struct dentry_t *p_entry);
-void exfat_set_entry_size(struct dentry_t *p_entry, u64 size);
-void exfat_get_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);
-
-extern const u8 uni_upcase[];
-#endif /* _EXFAT_H */
generated by cgit (git 2.34.1) at 2024-05-30 12:53:57 +0000