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rt-thread/components/dfs/include/dfs_def.h

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/*
* File : dfs_def.h
* This file is part of Device File System in RT-Thread RTOS
* COPYRIGHT (C) 2004-2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2004-10-01 Beranard The first version.
* 2004-10-14 Beranard Clean up the code.
* 2005-01-22 Beranard Clean up the code, port to MinGW
*/
#ifndef __DFS_DEF_H__
#define __DFS_DEF_H__
#include <rtthread.h>
#ifndef __D_FS__
#define __D_FS__
#endif
#define DEVICE_GETGEOME 0
#define DEVICE_GETINFO 1
#define DEVICE_FORMAT 2
#define DEVICE_CLEAN_SECTOR 3
/* File flags */
#define DFS_F_OPEN 0x01000000
#define DFS_F_DIRECTORY 0x02000000
#define DFS_F_EOF 0x04000000
#define DFS_F_ERR 0x08000000
#ifndef DFS_PATH_MAX
#define DFS_PATH_MAX 256
#endif
#ifndef SECTOR_SIZE
#define SECTOR_SIZE 512
#endif
#ifndef DFS_FILESYSTEM_TYPES_MAX
#define DFS_FILESYSTEM_TYPES_MAX 4
#endif
#define DFS_DEBUG_INFO 0x01
#define DFS_DEBUG_WARNING 0x02
#define DFS_DEBUG_ERROR 0x04
#define DFS_DEBUG_LEVEL (DFS_DEBUG_INFO | DFS_DEBUG_WARNING | DFS_DEBUG_ERROR)
/* #define DFS_DEBUG */
#ifdef DFS_DEBUG
#define dfs_log(level, x) do { if (level & DFS_DEBUG_LEVEL) \
{rt_kprintf("DFS %s, %d:", __FUNCTION__, __LINE__); rt_kprintf x; \
rt_kprintf ("\n");}}while (0)
#else
#define dfs_log(level, x)
#endif
#if defined(RT_USING_NEWLIB)
#include <string.h>
#include <sys/stat.h> /* used for struct stat */
#include <sys/statfs.h> /* used for struct statfs */
#include <sys/errno.h> /* used for error number */
#include <sys/fcntl.h> /* used for operation flags */
#include <sys/unistd.h> /* used for SEEK_SET/CUR/END */
#include <dirent.h> /* used for struct dirent */
/* Device error codes */
#define DFS_STATUS_OK 0 /* no error */
#define DFS_STATUS_ENOENT ENOENT /* No such file or directory */
#define DFS_STATUS_EIO EIO /* I/O error */
#define DFS_STATUS_ENXIO ENXIO /* No such device or address */
#define DFS_STATUS_EBADF EBADF /* Bad file number */
#define DFS_STATUS_EAGAIN EAGAIN /* Try again */
#define DFS_STATUS_ENOMEM ENOMEM /* no memory */
#define DFS_STATUS_EBUSY EBUSY /* Device or resource busy */
#define DFS_STATUS_EEXIST EEXIST /* File exists */
#define DFS_STATUS_EXDEV EXDEV /* Cross-device link */
#define DFS_STATUS_ENODEV ENODEV /* No such device */
#define DFS_STATUS_ENOTDIR ENOTDIR /* Not a directory */
#define DFS_STATUS_EISDIR EISDIR /* Is a directory */
#define DFS_STATUS_EINVAL EINVAL /* Invalid argument */
#define DFS_STATUS_ENOSPC ENOSPC /* No space left on device */
#define DFS_STATUS_EROFS EROFS /* Read-only file system */
#define DFS_STATUS_ENOSYS ENOSYS /* Function not implemented */
#define DFS_STATUS_ENOTEMPTY ENOTEMPTY /* Directory not empty */
/* Operation flags */
#define DFS_O_RDONLY O_RDONLY
#define DFS_O_WRONLY O_WRONLY
#define DFS_O_RDWR O_RDWR
#define DFS_O_ACCMODE O_ACCMODE
#define DFS_O_CREAT O_CREAT
#define DFS_O_EXCL O_EXCL
#define DFS_O_TRUNC O_TRUNC
#define DFS_O_APPEND O_APPEND
#define DFS_O_DIRECTORY O_DIRECTORY
/* Seek flags */
#define DFS_SEEK_SET SEEK_SET
#define DFS_SEEK_CUR SEEK_CUR
#define DFS_SEEK_END SEEK_END
/* Stat codes */
#define DFS_S_IFMT S_IFMT
#define DFS_S_IFSOCK S_IFSOCK
#define DFS_S_IFLNK S_IFLNK
#define DFS_S_IFREG S_IFREG
#define DFS_S_IFBLK S_IFBLK
#define DFS_S_IFDIR S_IFDIR
#define DFS_S_IFCHR S_IFCHR
#define DFS_S_IFIFO S_IFIFO
#define DFS_S_ISUID S_ISUID
#define DFS_S_ISGID S_ISGID
#define DFS_S_ISVTX S_ISVTX
#define DFS_S_ISLNK(m) S_ISLNK(m)
#define DFS_S_ISREG(m) S_ISREG(m)
#define DFS_S_ISDIR(m) S_ISDIR(m)
#define DFS_S_ISCHR(m) S_ISCHR(m)
#define DFS_S_ISBLK(m) S_ISBLK(m)
#define DFS_S_ISFIFO(m) S_ISFIFO(m)
#define DFS_S_ISSOCK(m) S_ISSOCK(m)
#define DFS_S_IRWXU S_IRWXU
#define DFS_S_IRUSR S_IRUSR
#define DFS_S_IWUSR S_IWUSR
#define DFS_S_IXUSR S_IXUSR
#define DFS_S_IRWXG S_IRWXG
#define DFS_S_IRGRP S_IRGRP
#define DFS_S_IWGRP S_IWGRP
#define DFS_S_IXGRP S_IXGRP
#define DFS_S_IRWXO S_IRWXO
#define DFS_S_IROTH S_IROTH
#define DFS_S_IWOTH S_IWOTH
#define DFS_S_IXOTH S_IXOTH
/* Dirent types */
#define DFS_DT_UNKNOWN DT_UNKNOWN
#define DFS_DT_REG DT_REG
#define DFS_DT_DIR DT_DIR
#else
#ifdef RT_USING_MINILIBC
#include <string.h>
#else
typedef long off_t;
typedef int mode_t;
#endif
/* Device error codes */
#define DFS_STATUS_OK 0 /* no error */
#define DFS_STATUS_ENOENT 2 /* No such file or directory */
#define DFS_STATUS_EIO 5 /* I/O error */
#define DFS_STATUS_ENXIO 6 /* No such device or address */
#define DFS_STATUS_EBADF 9 /* Bad file number */
#define DFS_STATUS_EAGAIN 11 /* Try again */
#define DFS_STATUS_ENOMEM 12 /* no memory */
#define DFS_STATUS_EBUSY 16 /* Device or resource busy */
#define DFS_STATUS_EEXIST 17 /* File exists */
#define DFS_STATUS_EXDEV 18 /* Cross-device link */
#define DFS_STATUS_ENODEV 19 /* No such device */
#define DFS_STATUS_ENOTDIR 20 /* Not a directory */
#define DFS_STATUS_EISDIR 21 /* Is a directory */
#define DFS_STATUS_EINVAL 22 /* Invalid argument */
#define DFS_STATUS_ENOSPC 28 /* No space left on device */
#define DFS_STATUS_EROFS 30 /* Read-only file system */
#define DFS_STATUS_ENOSYS 38 /* Function not implemented */
#define DFS_STATUS_ENOTEMPTY 39 /* Directory not empty */
/* Operation flags */
#define DFS_O_RDONLY 0x0000000
#define DFS_O_WRONLY 0x0000001
#define DFS_O_RDWR 0x0000002
#define DFS_O_ACCMODE 0x0000003
#define DFS_O_CREAT 0x0000100
#define DFS_O_EXCL 0x0000200
#define DFS_O_TRUNC 0x0001000
#define DFS_O_APPEND 0x0002000
#define DFS_O_BINARY 0x0008000
#define DFS_O_DIRECTORY 0x0200000
/* File flags */
#define DFS_F_OPEN 0x01000000
#define DFS_F_DIRECTORY 0x02000000
#define DFS_F_EOF 0x04000000
#define DFS_F_ERR 0x08000000
/* Seek flags */
#ifdef __CC_ARM
#include <stdio.h>
#define DFS_SEEK_SET SEEK_SET
#define DFS_SEEK_CUR SEEK_CUR
#define DFS_SEEK_END SEEK_END
#elif defined(_MSC_VER)
#include <stdio.h>
#define DFS_SEEK_SET SEEK_SET
#define DFS_SEEK_CUR SEEK_CUR
#define DFS_SEEK_END SEEK_END
#else
#define DFS_SEEK_SET 0
#define DFS_SEEK_CUR 1
#define DFS_SEEK_END 2
#endif
/* Stat codes */
#define DFS_S_IFMT 00170000
#define DFS_S_IFSOCK 0140000
#define DFS_S_IFLNK 0120000
#define DFS_S_IFREG 0100000
#define DFS_S_IFBLK 0060000
#define DFS_S_IFDIR 0040000
#define DFS_S_IFCHR 0020000
#define DFS_S_IFIFO 0010000
#define DFS_S_ISUID 0004000
#define DFS_S_ISGID 0002000
#define DFS_S_ISVTX 0001000
#define DFS_S_ISLNK(m) (((m) & DFS_S_IFMT) == DFS_S_IFLNK)
#define DFS_S_ISREG(m) (((m) & DFS_S_IFMT) == DFS_S_IFREG)
#define DFS_S_ISDIR(m) (((m) & DFS_S_IFMT) == DFS_S_IFDIR)
#define DFS_S_ISCHR(m) (((m) & DFS_S_IFMT) == DFS_S_IFCHR)
#define DFS_S_ISBLK(m) (((m) & DFS_S_IFMT) == DFS_S_IFBLK)
#define DFS_S_ISFIFO(m) (((m) & DFS_S_IFMT) == DFS_S_IFIFO)
#define DFS_S_ISSOCK(m) (((m) & DFS_S_IFMT) == DFS_S_IFSOCK)
#define DFS_S_IRWXU 00700
#define DFS_S_IRUSR 00400
#define DFS_S_IWUSR 00200
#define DFS_S_IXUSR 00100
#define DFS_S_IRWXG 00070
#define DFS_S_IRGRP 00040
#define DFS_S_IWGRP 00020
#define DFS_S_IXGRP 00010
#define DFS_S_IRWXO 00007
#define DFS_S_IROTH 00004
#define DFS_S_IWOTH 00002
#define DFS_S_IXOTH 00001
struct stat
{
rt_device_t st_dev;
rt_uint16_t st_mode;
rt_uint32_t st_size;
rt_time_t st_mtime;
rt_uint32_t st_blksize;
};
struct statfs
{
rt_size_t f_bsize; /* block size */
rt_size_t f_blocks; /* total data blocks in file system */
rt_size_t f_bfree; /* free blocks in file system */
};
/* File types */
#define FT_REGULAR 0 /* regular file */
#define FT_SOCKET 1 /* socket file */
#define FT_DIRECTORY 2 /* directory */
#define FT_USER 3 /* user defined */
/* Dirent types */
#define DFS_DT_UNKNOWN 0x00
#define DFS_DT_REG 0x01
#define DFS_DT_DIR 0x02
struct dirent
{
rt_uint8_t d_type; /* The type of the file */
rt_uint8_t d_namlen; /* The length of the not including the terminating null file name */
rt_uint16_t d_reclen; /* length of this record */
char d_name[DFS_PATH_MAX]; /* The null-terminated file name */
};
#endif
/* file descriptor */
#define DFS_FD_MAGIC 0xfdfd
struct dfs_fd
{
rt_uint16_t magic; /* file descriptor magic number */
rt_uint16_t type; /* Type (regular or socket) */
char *path; /* Name (below mount point) */
int ref_count; /* Descriptor reference count */
struct dfs_filesystem *fs; /* Resident file system */
rt_uint32_t flags; /* Descriptor flags */
rt_size_t size; /* Size in bytes */
rt_off_t pos; /* Current file position */
void *data; /* Specific file system data */
};
#endif
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