blob: 24f8d9bfc47ed76d3be8aaf7a28d268ee5947db4
1 | /* |
2 | * device_io.h - Exports for default device io. Originated from the Linux-NTFS project. |
3 | * |
4 | * Copyright (c) 2000-2006 Anton Altaparmakov |
5 | * |
6 | * This program/include file is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU General Public License as published |
8 | * by the Free Software Foundation; either version 2 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program/include file is distributed in the hope that it will be |
12 | * useful, but WITHOUT ANY WARRANTY; without even the implied warranty |
13 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
17 | * along with this program (in the main directory of the NTFS-3G |
18 | * distribution in the file COPYING); if not, write to the Free Software |
19 | * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 | */ |
21 | |
22 | #ifndef _NTFS_DEVICE_IO_H |
23 | #define _NTFS_DEVICE_IO_H |
24 | |
25 | #ifdef HAVE_CONFIG_H |
26 | #include "config.h" |
27 | #endif |
28 | |
29 | #ifndef NO_NTFS_DEVICE_DEFAULT_IO_OPS |
30 | |
31 | #if defined(linux) || defined(__uClinux__) || defined(__sun) \ |
32 | || defined(__APPLE__) || defined(__DARWIN__) |
33 | /* Make sure the presence of <windows.h> means compiling for Windows */ |
34 | #undef HAVE_WINDOWS_H |
35 | #endif |
36 | |
37 | #ifndef HAVE_WINDOWS_H |
38 | |
39 | /* Not for Windows use standard Unix style low level device operations. */ |
40 | #define ntfs_device_default_io_ops ntfs_device_unix_io_ops |
41 | |
42 | #else /* HAVE_WINDOWS_H */ |
43 | |
44 | #ifndef HDIO_GETGEO |
45 | # define HDIO_GETGEO 0x301 |
46 | /** |
47 | * struct hd_geometry - |
48 | */ |
49 | struct hd_geometry { |
50 | unsigned char heads; |
51 | unsigned char sectors; |
52 | unsigned short cylinders; |
53 | unsigned long start; |
54 | }; |
55 | #endif |
56 | #ifndef BLKGETSIZE |
57 | # define BLKGETSIZE 0x1260 |
58 | #endif |
59 | #ifndef BLKSSZGET |
60 | # define BLKSSZGET 0x1268 |
61 | #endif |
62 | #ifndef BLKGETSIZE64 |
63 | # define BLKGETSIZE64 0x80041272 |
64 | #endif |
65 | #ifndef BLKBSZSET |
66 | # define BLKBSZSET 0x40041271 |
67 | #endif |
68 | |
69 | /* On Windows (and Cygwin) : use Win32 low level device operations. */ |
70 | #define ntfs_device_default_io_ops ntfs_device_win32_io_ops |
71 | |
72 | /* A few useful functions */ |
73 | int ntfs_win32_set_sparse(int); |
74 | int ntfs_win32_ftruncate(int fd, s64 size); |
75 | int ntfs_win32_device_ftruncate(struct ntfs_device*, s64); |
76 | |
77 | #endif /* HAVE_WINDOWS_H */ |
78 | |
79 | |
80 | /* Forward declaration. */ |
81 | struct ntfs_device_operations; |
82 | |
83 | extern struct ntfs_device_operations ntfs_device_default_io_ops; |
84 | |
85 | #endif /* NO_NTFS_DEVICE_DEFAULT_IO_OPS */ |
86 | |
87 | #endif /* defined _NTFS_DEVICE_IO_H */ |
88 | |
89 |