150 lines
5.9 KiB
C
150 lines
5.9 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _FATFS_H
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#define _FATFS_H
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#include "ff.h"
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#include "fs/fs.h"
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#include "disk.h"
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#include "unistd.h"
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#include "string.h"
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#include "stdio.h"
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#include "stdlib.h"
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#include "time.h"
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#include "sys/stat.h"
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#include "sys/statfs.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#define MAX_LFNAME_LENTH 256
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#define LABEL_LEN 12
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#define FAT_RESERVED_NUM 2
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#define FAT32_MAXSIZE 0x100000000
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#define BAD_CLUSTER 0x7FFFFFFF
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#define DISK_ERROR 0xFFFFFFFF
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#define FAT12_END_OF_CLUSTER 0x00000FFF
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#define FAT16_END_OF_CLUSTER 0x0000FFFF
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#define FAT32_END_OF_CLUSTER 0x0FFFFFFF
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#define FAT_ERROR (-1)
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/* MBR */
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#define MBR_PRIMARY_PART_NUM 4
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#define JUMP_CODE "\xEB\xFE\x90"
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/* Partiton type */
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#define FAT12 0x01 /* FAT12 as primary partition in first physical 32MB */
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#define FAT16 0x04 /* FAT16 with less than 65536 sectors(32MB) */
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#define EXTENDED_PARTITION_CHS 0x05
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#define FAT16B 0x06 /* FAT16B with 65536 or more sectors */
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#define FAT32_CHS 0x0B
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#define FAT32_LBA 0x0C
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#define EXTENDED_PARTITION_LBA 0x0F
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#define GPT_PROTECTIVE_MBR 0xEE
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/* volume boot record type */
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#define VBR_FAT 0
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#define VBR_BS_NOT_FAT 2
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#define VBR_NOT_BS 3
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#define VBR_DISK_ERR 4
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/* Limit and boundary */
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#define FAT_MAX_CLUSTER_SIZE 64 /* (sectors) */
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#define FAT32_MAX_CLUSTER_SIZE 128 /* (sectors) */
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#define FAT32_ENTRY_SIZE 4 /* (bytes) */
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#define FAT16_ENTRY_SIZE 2 /* (bytes) */
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#define VOL_MIN_SIZE 128 /* (sectors) */
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#define SFD_START_SECTOR 63
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#define MAX_BLOCK_SIZE 32768 /* (sectors) */
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/* Sector */
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#define FAT32_RESERVED_SECTOR 32
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#define FAT_RESERVED_SECTOR 1
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#define DIR_NAME_LEN 11
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#define DIR_READ_COUNT 7
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#define VOLUME_CHAR_LENGTH 4
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#define FAT_DEBUG
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#ifdef FAT_DEBUG
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#define FDEBUG(format, ...) do { \
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PRINTK("[%s:%d]"format"\n", __func__, __LINE__, ##__VA_ARGS__); \
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} while (0)
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#else
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#define FDEBUG(...)
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#endif
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int fatfs_2_vfs(int result);
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int fatfs_lookup(struct Vnode *parent, const char *name, int len, struct Vnode **vpp);
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int fatfs_create(struct Vnode *parent, const char *name, int mode, struct Vnode **vpp);
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int fatfs_read(struct file *filep, char *buff, size_t count);
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off_t fatfs_lseek64(struct file *filep, off64_t offset, int whence);
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off64_t fatfs_lseek(struct file *filep, off_t offset, int whence);
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int fatfs_write(struct file *filep, const char *buff, size_t count);
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int fatfs_fsync(struct file *filep);
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int fatfs_fallocate64(struct file *filep, int mode, off64_t offset, off64_t len);
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int fatfs_fallocate(struct file *filep, int mode, off_t offset, off_t len);
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int fatfs_truncate64(struct Vnode *vnode, off64_t len);
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int fatfs_truncate(struct Vnode *vnode, off_t len);
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int fatfs_mount(struct Mount *mount, struct Vnode *device, const void *data);
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int fatfs_umount(struct Mount *mount, struct Vnode **device);
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int fatfs_statfs(struct Mount *mount, struct statfs *info);
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int fatfs_stat(struct Vnode *vnode, struct stat *buff);
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int fatfs_chattr(struct Vnode *vnode, struct IATTR *attr);
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int fatfs_opendir(struct Vnode *vnode, struct fs_dirent_s *idir);
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int fatfs_readdir(struct Vnode *vnode, struct fs_dirent_s *idir);
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int fatfs_rewinddir(struct Vnode *vnode, struct fs_dirent_s *dir);
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int fatfs_closedir(struct Vnode *vnode, struct fs_dirent_s *dir);
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int fatfs_rename(struct Vnode *oldvnode, struct Vnode *newparent, const char *oldname, const char *newname);
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int fatfs_mkfs (struct Vnode *device, int sectors, int option);
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int fatfs_mkdir(struct Vnode *parent, const char *name, mode_t mode, struct Vnode **vpp);
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int fatfs_rmdir(struct Vnode *parent, struct Vnode *vp, char *name);
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int fatfs_unlink(struct Vnode *parent, struct Vnode *vp, char *name);
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int fatfs_ioctl(struct file *filep, int req, unsigned long arg);
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int fatfs_fscheck(struct Vnode* vnode, struct fs_dirent_s *dir);
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FRESULT find_fat_partition(FATFS *fs, los_part *part, BYTE *format, QWORD *start_sector);
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FRESULT init_fatobj(FATFS *fs, BYTE fmt, QWORD start_sector);
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FRESULT _mkfs(los_part *partition, int sector, int opt, BYTE *work, UINT len);
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif
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