176 lines
5.2 KiB
C
176 lines
5.2 KiB
C
/*
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+------------------------------------------------------------------------------
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| Device FileSystem
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+------------------------------------------------------------------------------
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| Copyright 2004, 2005 www.fayfayspace.org.
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| All rights reserved.
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|------------------------------------------------------------------------------
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| File : dfs_def.h, the definitions of Device FileSystem
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|------------------------------------------------------------------------------
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| Chang Logs:
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| Date Author notes
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| 2004-10-01 ffxz The first version.
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| 2004-10-14 ffxz Clean up the code.
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| 2005-01-22 ffxz Clean up the code, port to MinGW
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+------------------------------------------------------------------------------
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*/
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#ifndef __DFS_DEF_H__
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#define __DFS_DEF_H__
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#include <rtthread.h>
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#include <dfs_config.h>
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#if defined(RT_USING_NEWLIB) || defined (RT_USING_MINILIBC)
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#include <string.h>
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#endif
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#ifndef __D_FS__
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#define __D_FS__
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#endif
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/* Device error codes */
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#define DFS_STATUS_OK 0 /* no error */
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#define DFS_STATUS_ENOENT 2 /* No such file or directory */
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#define DFS_STATUS_EIO 5 /* I/O error */
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#define DFS_STATUS_ENXIO 6 /* No such device or address */
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#define DFS_STATUS_EBADF 9 /* Bad file number */
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#define DFS_STATUS_EAGIAN 11 /* Try again */
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#define DFS_STATUS_ENOMEM 12 /* no memory */
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#define DFS_STATUS_EBUSY 16 /* Device or resource busy */
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#define DFS_STATUS_EEXIST 17 /* File exists */
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#define DFS_STATUS_EXDEV 18 /* Cross-device link */
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#define DFS_STATUS_ENODEV 19 /* No such device */
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#define DFS_STATUS_ENOTDIR 20 /* Not a directory */
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#define DFS_STATUS_EISDIR 21 /* Is a directory */
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#define DFS_STATUS_EINVAL 22 /* Invalid argument */
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#define DFS_STATUS_ENOSPC 28 /* No space left on device */
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#define DFS_STATUS_EROFS 30 /* Read-only file system */
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#define DFS_STATUS_ENOSYS 38 /* Function not implemented */
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#define DFS_STATUS_ENOTEMPTY 39 /* Directory not empty */
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#define DFS_STATUS_EMMOUNT 128 /* Filesystem table full */
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/* Operation flags */
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#define DFS_O_RDONLY 0000000
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#define DFS_O_WRONLY 0000001
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#define DFS_O_RDWR 0000002
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#define DFS_O_ACCMODE 0000003
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#define DFS_O_CREAT 0000100
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#define DFS_O_EXCL 0000200
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#define DFS_O_TRUNC 0001000
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#define DFS_O_APPEND 0002000
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#define DFS_O_DIRECTORY 0200000
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/* File flags */
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#define DFS_F_OPEN 0x01000000
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#define DFS_F_DIRECTORY 0x02000000
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#define DFS_F_EOF 0x04000000
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#define DFS_F_ERR 0x08000000
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/* Seek flags */
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#define DFS_SEEK_SET 0
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#define DFS_SEEK_CUR 1
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#define DFS_SEEK_END 2
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/* Stat codes */
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#define DFS_S_IFMT 00170000
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#define DFS_S_IFSOCK 0140000
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#define DFS_S_IFLNK 0120000
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#define DFS_S_IFREG 0100000
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#define DFS_S_IFBLK 0060000
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#define DFS_S_IFDIR 0040000
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#define DFS_S_IFCHR 0020000
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#define DFS_S_IFIFO 0010000
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#define DFS_S_ISUID 0004000
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#define DFS_S_ISGID 0002000
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#define DFS_S_ISVTX 0001000
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#define DFS_S_ISLNK(m) (((m) & DFS_S_IFMT) == DFS_S_IFLNK)
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#define DFS_S_ISREG(m) (((m) & DFS_S_IFMT) == DFS_S_IFREG)
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#define DFS_S_ISDIR(m) (((m) & DFS_S_IFMT) == DFS_S_IFDIR)
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#define DFS_S_ISCHR(m) (((m) & DFS_S_IFMT) == DFS_S_IFCHR)
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#define DFS_S_ISBLK(m) (((m) & DFS_S_IFMT) == DFS_S_IFBLK)
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#define DFS_S_ISFIFO(m) (((m) & DFS_S_IFMT) == DFS_S_IFIFO)
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#define DFS_S_ISSOCK(m) (((m) & DFS_S_IFMT) == DFS_S_IFSOCK)
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#define DFS_S_IRWXU 00700
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#define DFS_S_IRUSR 00400
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#define DFS_S_IWUSR 00200
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#define DFS_S_IXUSR 00100
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#define DFS_S_IRWXG 00070
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#define DFS_S_IRGRP 00040
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#define DFS_S_IWGRP 00020
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#define DFS_S_IXGRP 00010
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#define DFS_S_IRWXO 00007
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#define DFS_S_IROTH 00004
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#define DFS_S_IWOTH 00002
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#define DFS_S_IXOTH 00001
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#define DEVICE_GETGEOME 0
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#define DEVICE_GETINFO 1
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#define DEVICE_FORMAT 2
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#define DEVICE_CLEAN_SECTOR 3
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struct device_geometry
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{
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rt_uint32_t sector_count; /* count of sectors */
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rt_uint32_t cylinder_count; /* count of cylinder */
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rt_uint32_t sectors_per_track; /* number of sectors per track */
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rt_uint32_t head_count; /* count of head */
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rt_uint32_t bytes_per_sector; /* number of bytes per sector */
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};
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struct dfs_stat
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{
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rt_device_t st_dev;
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rt_uint16_t st_mode;
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rt_uint32_t st_size;
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rt_time_t st_mtime;
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rt_uint32_t st_blksize;
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};
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#define stat dfs_stat
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/* File types */
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#define FT_REGULAR 0 /* regular file */
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#define FT_SOCKET 1 /* socket file */
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#define FT_DIRECTORY 2 /* directory */
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#define FT_USER 3 /* user defined */
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/* file descriptor */
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struct dfs_fd
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{
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char path[DFS_PATH_MAX + 1];/* Name (below mount point) */
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int type; /* Type (regular or socket) */
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int ref_count; /* Descriptor reference count */
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struct dfs_filesystem* fs; /* Resident file system */
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rt_uint32_t flags; /* Descriptor flags */
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rt_size_t size; /* Size in bytes */
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rt_off_t pos; /* Current file position */
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void *data; /* Specific file system data */
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};
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#define DFS_DT_UNKNOWN 0x00
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#define DFS_DT_REG 0x01
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#define DFS_DT_DIR 0x02
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struct dfs_dirent
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{
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rt_uint8_t d_type; /* The type of the file */
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rt_uint8_t d_namlen; /* The length of the not including the terminating null file name */
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rt_uint16_t d_reclen; /* length of this record */
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char d_name[256]; /* The null-terminated file name */
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};
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#define dirent dfs_dirent
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struct dfs_session
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{
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rt_mailbox_t mbox;
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};
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#endif
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