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 #ifndef __CYGWIN32__ 32 33 /* Not on Cygwin; use standard Unix style low level device operations. */ 34 #define ntfs_device_default_io_ops ntfs_device_unix_io_ops 35 36 #else /* __CYGWIN32__ */ 37 38 #ifndef HDIO_GETGEO 39 # define HDIO_GETGEO 0x301 40 /** 41 * struct hd_geometry - 42 */ 43 struct hd_geometry { 44 unsigned char heads; 45 unsigned char sectors; 46 unsigned short cylinders; 47 unsigned long start; 48 }; 49 #endif 50 #ifndef BLKGETSIZE 51 # define BLKGETSIZE 0x1260 52 #endif 53 #ifndef BLKSSZGET 54 # define BLKSSZGET 0x1268 55 #endif 56 #ifndef BLKGETSIZE64 57 # define BLKGETSIZE64 0x80041272 58 #endif 59 #ifndef BLKBSZSET 60 # define BLKBSZSET 0x40041271 61 #endif 62 63 /* On Cygwin; use Win32 low level device operations. */ 64 #define ntfs_device_default_io_ops ntfs_device_win32_io_ops 65 66 #endif /* __CYGWIN32__ */ 67 68 69 /* Forward declaration. */ 70 struct ntfs_device_operations; 71 72 extern struct ntfs_device_operations ntfs_device_default_io_ops; 73 74 #endif /* NO_NTFS_DEVICE_DEFAULT_IO_OPS */ 75 76 #endif /* defined _NTFS_DEVICE_IO_H */ 77 78