304 lines
11 KiB
C
304 lines
11 KiB
C
/*
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* File : dfs_def.h
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* This file is part of Device File System in RT-Thread RTOS
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* COPYRIGHT (C) 2004-2012, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE.
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*
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* Change Logs:
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* Date Author Notes
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* 2004-10-01 Beranard The first version.
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* 2004-10-14 Beranard Clean up the code.
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* 2005-01-22 Beranard Clean up the code, port to MinGW
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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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#ifndef __D_FS__
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#define __D_FS__
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#endif
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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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/* 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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#ifndef DFS_PATH_MAX
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#define DFS_PATH_MAX 256
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#endif
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#ifndef SECTOR_SIZE
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#define SECTOR_SIZE 512
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#endif
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#ifndef DFS_FILESYSTEM_TYPES_MAX
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#define DFS_FILESYSTEM_TYPES_MAX 4
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#endif
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#define DFS_DEBUG_INFO 0x01
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#define DFS_DEBUG_WARNING 0x02
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#define DFS_DEBUG_ERROR 0x04
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#define DFS_DEBUG_LEVEL (DFS_DEBUG_INFO | DFS_DEBUG_WARNING | DFS_DEBUG_ERROR)
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/* #define DFS_DEBUG */
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#ifdef DFS_DEBUG
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#define dfs_log(level, x) do { if (level & DFS_DEBUG_LEVEL) \
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{rt_kprintf("DFS %s, %d:", __FUNCTION__, __LINE__); rt_kprintf x; \
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rt_kprintf ("\n");}}while (0)
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#else
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#define dfs_log(level, x)
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#endif
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#if defined(RT_USING_NEWLIB)
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#include <string.h>
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#include <sys/stat.h> /* used for struct stat */
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#include <sys/statfs.h> /* used for struct statfs */
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#include <sys/errno.h> /* used for error number */
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#include <sys/fcntl.h> /* used for operation flags */
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#include <sys/unistd.h> /* used for SEEK_SET/CUR/END */
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#include <dirent.h> /* used for struct dirent */
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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 ENOENT /* No such file or directory */
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#define DFS_STATUS_EIO EIO /* I/O error */
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#define DFS_STATUS_ENXIO ENXIO /* No such device or address */
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#define DFS_STATUS_EBADF EBADF /* Bad file number */
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#define DFS_STATUS_EAGAIN EAGAIN /* Try again */
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#define DFS_STATUS_ENOMEM ENOMEM /* no memory */
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#define DFS_STATUS_EBUSY EBUSY /* Device or resource busy */
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#define DFS_STATUS_EEXIST EEXIST /* File exists */
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#define DFS_STATUS_EXDEV EXDEV /* Cross-device link */
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#define DFS_STATUS_ENODEV ENODEV /* No such device */
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#define DFS_STATUS_ENOTDIR ENOTDIR /* Not a directory */
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#define DFS_STATUS_EISDIR EISDIR /* Is a directory */
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#define DFS_STATUS_EINVAL EINVAL /* Invalid argument */
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#define DFS_STATUS_ENOSPC ENOSPC /* No space left on device */
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#define DFS_STATUS_EROFS EROFS /* Read-only file system */
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#define DFS_STATUS_ENOSYS ENOSYS /* Function not implemented */
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#define DFS_STATUS_ENOTEMPTY ENOTEMPTY /* Directory not empty */
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/* Operation flags */
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#define DFS_O_RDONLY O_RDONLY
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#define DFS_O_WRONLY O_WRONLY
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#define DFS_O_RDWR O_RDWR
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#define DFS_O_ACCMODE O_ACCMODE
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#define DFS_O_CREAT O_CREAT
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#define DFS_O_EXCL O_EXCL
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#define DFS_O_TRUNC O_TRUNC
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#define DFS_O_APPEND O_APPEND
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#define DFS_O_DIRECTORY O_DIRECTORY
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/* Seek flags */
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#define DFS_SEEK_SET SEEK_SET
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#define DFS_SEEK_CUR SEEK_CUR
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#define DFS_SEEK_END SEEK_END
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/* Stat codes */
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#define DFS_S_IFMT S_IFMT
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#define DFS_S_IFSOCK S_IFSOCK
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#define DFS_S_IFLNK S_IFLNK
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#define DFS_S_IFREG S_IFREG
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#define DFS_S_IFBLK S_IFBLK
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#define DFS_S_IFDIR S_IFDIR
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#define DFS_S_IFCHR S_IFCHR
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#define DFS_S_IFIFO S_IFIFO
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#define DFS_S_ISUID S_ISUID
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#define DFS_S_ISGID S_ISGID
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#define DFS_S_ISVTX S_ISVTX
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#define DFS_S_ISLNK(m) S_ISLNK(m)
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#define DFS_S_ISREG(m) S_ISREG(m)
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#define DFS_S_ISDIR(m) S_ISDIR(m)
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#define DFS_S_ISCHR(m) S_ISCHR(m)
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#define DFS_S_ISBLK(m) S_ISBLK(m)
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#define DFS_S_ISFIFO(m) S_ISFIFO(m)
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#define DFS_S_ISSOCK(m) S_ISSOCK(m)
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#define DFS_S_IRWXU S_IRWXU
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#define DFS_S_IRUSR S_IRUSR
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#define DFS_S_IWUSR S_IWUSR
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#define DFS_S_IXUSR S_IXUSR
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#define DFS_S_IRWXG S_IRWXG
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#define DFS_S_IRGRP S_IRGRP
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#define DFS_S_IWGRP S_IWGRP
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#define DFS_S_IXGRP S_IXGRP
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#define DFS_S_IRWXO S_IRWXO
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#define DFS_S_IROTH S_IROTH
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#define DFS_S_IWOTH S_IWOTH
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#define DFS_S_IXOTH S_IXOTH
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/* Dirent types */
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#define DFS_DT_UNKNOWN DT_UNKNOWN
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#define DFS_DT_REG DT_REG
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#define DFS_DT_DIR DT_DIR
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#else
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#ifdef RT_USING_MINILIBC
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#include <string.h>
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#else
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typedef long off_t;
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typedef int mode_t;
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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_EAGAIN 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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/* Operation flags */
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#define DFS_O_RDONLY 0x0000000
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#define DFS_O_WRONLY 0x0000001
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#define DFS_O_RDWR 0x0000002
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#define DFS_O_ACCMODE 0x0000003
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#define DFS_O_CREAT 0x0000100
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#define DFS_O_EXCL 0x0000200
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#define DFS_O_TRUNC 0x0001000
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#define DFS_O_APPEND 0x0002000
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#define DFS_O_BINARY 0x0008000
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#define DFS_O_DIRECTORY 0x0200000
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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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#ifdef __CC_ARM
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#include <stdio.h>
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#define DFS_SEEK_SET SEEK_SET
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#define DFS_SEEK_CUR SEEK_CUR
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#define DFS_SEEK_END SEEK_END
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#elif defined(_MSC_VER)
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#include <stdio.h>
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#define DFS_SEEK_SET SEEK_SET
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#define DFS_SEEK_CUR SEEK_CUR
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#define DFS_SEEK_END SEEK_END
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#else
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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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#endif
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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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struct 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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struct statfs
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{
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rt_size_t f_bsize; /* block size */
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rt_size_t f_blocks; /* total data blocks in file system */
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rt_size_t f_bfree; /* free blocks in file system */
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};
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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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/* Dirent types */
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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 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[DFS_PATH_MAX]; /* The null-terminated file name */
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};
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#endif
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/* file descriptor */
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#define DFS_FD_MAGIC 0xfdfd
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struct dfs_fd
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{
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rt_uint16_t magic; /* file descriptor magic number */
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rt_uint16_t type; /* Type (regular or socket) */
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char *path; /* Name (below mount point) */
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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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#endif
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