mirror of
https://github.com/Fledge68/WiiFlow_Lite.git
synced 2024-11-23 19:59:16 +01:00
135 lines
5.0 KiB
C
135 lines
5.0 KiB
C
/*
|
|
* device.h - Exports for low level device io. Originated from the Linux-NTFS project.
|
|
*
|
|
* Copyright (c) 2000-2006 Anton Altaparmakov
|
|
*
|
|
* This program/include file 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/include file 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 (in the main directory of the NTFS-3G
|
|
* distribution in the file COPYING); if not, write to the Free Software
|
|
* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef _NTFS_DEVICE_H
|
|
#define _NTFS_DEVICE_H
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "device_io.h"
|
|
#include "types.h"
|
|
#include "support.h"
|
|
#include "volume.h"
|
|
|
|
/**
|
|
* enum ntfs_device_state_bits -
|
|
*
|
|
* Defined bits for the state field in the ntfs_device structure.
|
|
*/
|
|
typedef enum {
|
|
ND_Open, /* 1: Device is open. */
|
|
ND_ReadOnly, /* 1: Device is read-only. */
|
|
ND_Dirty, /* 1: Device is dirty, needs sync. */
|
|
ND_Block, /* 1: Device is a block device. */
|
|
ND_Sync, /* 1: Device is mounted with "-o sync" */
|
|
} ntfs_device_state_bits;
|
|
|
|
#define test_ndev_flag(nd, flag) test_bit(ND_##flag, (nd)->d_state)
|
|
#define set_ndev_flag(nd, flag) set_bit(ND_##flag, (nd)->d_state)
|
|
#define clear_ndev_flag(nd, flag) clear_bit(ND_##flag, (nd)->d_state)
|
|
|
|
#define NDevOpen(nd) test_ndev_flag(nd, Open)
|
|
#define NDevSetOpen(nd) set_ndev_flag(nd, Open)
|
|
#define NDevClearOpen(nd) clear_ndev_flag(nd, Open)
|
|
|
|
#define NDevReadOnly(nd) test_ndev_flag(nd, ReadOnly)
|
|
#define NDevSetReadOnly(nd) set_ndev_flag(nd, ReadOnly)
|
|
#define NDevClearReadOnly(nd) clear_ndev_flag(nd, ReadOnly)
|
|
|
|
#define NDevDirty(nd) test_ndev_flag(nd, Dirty)
|
|
#define NDevSetDirty(nd) set_ndev_flag(nd, Dirty)
|
|
#define NDevClearDirty(nd) clear_ndev_flag(nd, Dirty)
|
|
|
|
#define NDevBlock(nd) test_ndev_flag(nd, Block)
|
|
#define NDevSetBlock(nd) set_ndev_flag(nd, Block)
|
|
#define NDevClearBlock(nd) clear_ndev_flag(nd, Block)
|
|
|
|
#define NDevSync(nd) test_ndev_flag(nd, Sync)
|
|
#define NDevSetSync(nd) set_ndev_flag(nd, Sync)
|
|
#define NDevClearSync(nd) clear_ndev_flag(nd, Sync)
|
|
|
|
/**
|
|
* struct ntfs_device -
|
|
*
|
|
* The ntfs device structure defining all operations needed to access the low
|
|
* level device underlying the ntfs volume.
|
|
*/
|
|
struct ntfs_device {
|
|
struct ntfs_device_operations *d_ops; /* Device operations. */
|
|
unsigned long d_state; /* State of the device. */
|
|
char *d_name; /* Name of device. */
|
|
void *d_private; /* Private data used by the
|
|
device operations. */
|
|
};
|
|
|
|
struct stat;
|
|
|
|
/**
|
|
* struct ntfs_device_operations -
|
|
*
|
|
* The ntfs device operations defining all operations that can be performed on
|
|
* the low level device described by an ntfs device structure.
|
|
*/
|
|
struct ntfs_device_operations {
|
|
int (*open)(struct ntfs_device *dev, int flags);
|
|
int (*close)(struct ntfs_device *dev);
|
|
s64 (*seek)(struct ntfs_device *dev, s64 offset, int whence);
|
|
s64 (*read)(struct ntfs_device *dev, void *buf, s64 count);
|
|
s64 (*write)(struct ntfs_device *dev, const void *buf, s64 count);
|
|
s64 (*pread)(struct ntfs_device *dev, void *buf, s64 count, s64 offset);
|
|
s64 (*pwrite)(struct ntfs_device *dev, const void *buf, s64 count,
|
|
s64 offset);
|
|
int (*sync)(struct ntfs_device *dev);
|
|
int (*stat)(struct ntfs_device *dev, struct stat *buf);
|
|
int (*ioctl)(struct ntfs_device *dev, int request, void *argp);
|
|
};
|
|
|
|
extern struct ntfs_device *ntfs_device_alloc(const char *name, const long state,
|
|
struct ntfs_device_operations *dops, void *priv_data);
|
|
extern int ntfs_device_free(struct ntfs_device *dev);
|
|
extern int ntfs_device_sync(struct ntfs_device *dev);
|
|
|
|
extern s64 ntfs_pread(struct ntfs_device *dev, const s64 pos, s64 count,
|
|
void *b);
|
|
extern s64 ntfs_pwrite(struct ntfs_device *dev, const s64 pos, s64 count,
|
|
const void *b);
|
|
|
|
extern s64 ntfs_mst_pread(struct ntfs_device *dev, const s64 pos, s64 count,
|
|
const u32 bksize, void *b);
|
|
extern s64 ntfs_mst_pwrite(struct ntfs_device *dev, const s64 pos, s64 count,
|
|
const u32 bksize, void *b);
|
|
|
|
extern s64 ntfs_cluster_read(const ntfs_volume *vol, const s64 lcn,
|
|
const s64 count, void *b);
|
|
extern s64 ntfs_cluster_write(const ntfs_volume *vol, const s64 lcn,
|
|
const s64 count, const void *b);
|
|
|
|
extern s64 ntfs_device_size_get(struct ntfs_device *dev, int block_size);
|
|
extern s64 ntfs_device_partition_start_sector_get(struct ntfs_device *dev);
|
|
extern int ntfs_device_heads_get(struct ntfs_device *dev);
|
|
extern int ntfs_device_sectors_per_track_get(struct ntfs_device *dev);
|
|
extern int ntfs_device_sector_size_get(struct ntfs_device *dev);
|
|
extern int ntfs_device_block_size_set(struct ntfs_device *dev, int block_size);
|
|
|
|
#endif /* defined _NTFS_DEVICE_H */
|