[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / qnx4_fs.h

/*
 *  Name                         : qnx4_fs.h
 *  Author                       : Richard Frowijn
 *  Function                     : qnx4 global filesystem definitions
 *  Version                      : 1.0.2
 *  Last modified                : 2000-01-31
 *
 *  History                      : 23-03-1998 created
 */
#ifndef _LINUX_QNX4_FS_H
#define _LINUX_QNX4_FS_H

#include <linux/qnxtypes.h>

#define QNX4_ROOT_INO 1

#define QNX4_MAX_XTNTS_PER_XBLK	60
/* for di_status */
#define QNX4_FILE_USED          0x01
#define QNX4_FILE_MODIFIED      0x02
#define QNX4_FILE_BUSY          0x04
#define QNX4_FILE_LINK          0x08
#define QNX4_FILE_INODE         0x10
#define QNX4_FILE_FSYSCLEAN     0x20

#define QNX4_I_MAP_SLOTS	8
#define QNX4_Z_MAP_SLOTS	64
#define QNX4_SUPER_MAGIC	0x002f	/* qnx4 fs detection */
#define QNX4_VALID_FS		0x0001	/* Clean fs. */
#define QNX4_ERROR_FS		0x0002	/* fs has errors. */
#define QNX4_BLOCK_SIZE         0x200	/* blocksize of 512 bytes */
#define QNX4_BLOCK_SIZE_BITS    9	/* blocksize shift */
#define QNX4_DIR_ENTRY_SIZE     0x040	/* dir entry size of 64 bytes */
#define QNX4_DIR_ENTRY_SIZE_BITS 6	/* dir entry size shift */
#define QNX4_XBLK_ENTRY_SIZE    0x200	/* xblk entry size */
#define QNX4_INODES_PER_BLOCK   0x08	/* 512 / 64 */

/* for filenames */
#define QNX4_SHORT_NAME_MAX	16
#define QNX4_NAME_MAX		48

/*
 * This is the original qnx4 inode layout on disk.
 */
struct qnx4_inode_entry {
	char		di_fname[QNX4_SHORT_NAME_MAX];
	qnx4_off_t	di_size;
	qnx4_xtnt_t	di_first_xtnt;
	__le32		di_xblk;
	__le32		di_ftime;
	__le32		di_mtime;
	__le32		di_atime;
	__le32		di_ctime;
	qnx4_nxtnt_t	di_num_xtnts;
	qnx4_mode_t	di_mode;
	qnx4_muid_t	di_uid;
	qnx4_mgid_t	di_gid;
	qnx4_nlink_t	di_nlink;
	__u8		di_zero[4];
	qnx4_ftype_t	di_type;
	__u8		di_status;
};

struct qnx4_link_info {
	char		dl_fname[QNX4_NAME_MAX];
	__le32		dl_inode_blk;
	__u8		dl_inode_ndx;
	__u8		dl_spare[10];
	__u8		dl_status;
};

struct qnx4_xblk {
	__le32		xblk_next_xblk;
	__le32		xblk_prev_xblk;
	__u8		xblk_num_xtnts;
	__u8		xblk_spare[3];
	__le32		xblk_num_blocks;
	qnx4_xtnt_t	xblk_xtnts[QNX4_MAX_XTNTS_PER_XBLK];
	char		xblk_signature[8];
	qnx4_xtnt_t	xblk_first_xtnt;
};

struct qnx4_super_block {
	struct qnx4_inode_entry RootDir;
	struct qnx4_inode_entry Inode;
	struct qnx4_inode_entry Boot;
	struct qnx4_inode_entry AltBoot;
};

#ifdef __KERNEL__

#define QNX4_DEBUG 0

#if QNX4_DEBUG
#define QNX4DEBUG(X) printk X
#else
#define QNX4DEBUG(X) (void) 0
#endif

struct qnx4_sb_info {
	struct buffer_head	*sb_buf;	/* superblock buffer */
	struct qnx4_super_block	*sb;		/* our superblock */
	unsigned int		Version;	/* may be useful */
	struct qnx4_inode_entry	*BitMap;	/* useful */
};

struct qnx4_inode_info {
	struct qnx4_inode_entry raw;
	loff_t mmu_private;
	struct inode vfs_inode;
};

extern struct dentry *qnx4_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd);
extern unsigned long qnx4_count_free_blocks(struct super_block *sb);
extern unsigned long qnx4_block_map(struct inode *inode, long iblock);

extern struct buffer_head *qnx4_bread(struct inode *, int, int);

extern struct inode_operations qnx4_file_inode_operations;
extern struct inode_operations qnx4_dir_inode_operations;
extern struct file_operations qnx4_file_operations;
extern struct file_operations qnx4_dir_operations;
extern int qnx4_is_free(struct super_block *sb, long block);
extern int qnx4_set_bitmap(struct super_block *sb, long block, int busy);
extern int qnx4_create(struct inode *inode, struct dentry *dentry, int mode, struct nameidata *nd);
extern void qnx4_truncate(struct inode *inode);
extern void qnx4_free_inode(struct inode *inode);
extern int qnx4_unlink(struct inode *dir, struct dentry *dentry);
extern int qnx4_rmdir(struct inode *dir, struct dentry *dentry);
extern int qnx4_sync_file(struct file *file, struct dentry *dentry, int);
extern int qnx4_sync_inode(struct inode *inode);

static inline struct qnx4_sb_info *qnx4_sb(struct super_block *sb)
{
	return sb->s_fs_info;
}

static inline struct qnx4_inode_info *qnx4_i(struct inode *inode)
{
	return container_of(inode, struct qnx4_inode_info, vfs_inode);
}

static inline struct qnx4_inode_entry *qnx4_raw_inode(struct inode *inode)
{
	return &qnx4_i(inode)->raw;
}

#endif				/* __KERNEL__ */

#endif
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Name : qnx4_fs.h
	3	* Author : Richard Frowijn
	4	* Function : qnx4 global filesystem definitions
	5	* Version : 1.0.2
	6	* Last modified : 2000-01-31
	7	*
	8	* History : 23-03-1998 created
	9	*/
	10	#ifndef _LINUX_QNX4_FS_H
	11	#define _LINUX_QNX4_FS_H
	12
	13	#include <linux/qnxtypes.h>
	14
	15	#define QNX4_ROOT_INO 1
	16
	17	#define QNX4_MAX_XTNTS_PER_XBLK 60
	18	/* for di_status */
	19	#define QNX4_FILE_USED 0x01
	20	#define QNX4_FILE_MODIFIED 0x02
	21	#define QNX4_FILE_BUSY 0x04
	22	#define QNX4_FILE_LINK 0x08
	23	#define QNX4_FILE_INODE 0x10
	24	#define QNX4_FILE_FSYSCLEAN 0x20
	25
	26	#define QNX4_I_MAP_SLOTS 8
	27	#define QNX4_Z_MAP_SLOTS 64
	28	#define QNX4_SUPER_MAGIC 0x002f /* qnx4 fs detection */
	29	#define QNX4_VALID_FS 0x0001 /* Clean fs. */
	30	#define QNX4_ERROR_FS 0x0002 /* fs has errors. */
	31	#define QNX4_BLOCK_SIZE 0x200 /* blocksize of 512 bytes */
	32	#define QNX4_BLOCK_SIZE_BITS 9 /* blocksize shift */
	33	#define QNX4_DIR_ENTRY_SIZE 0x040 /* dir entry size of 64 bytes */
	34	#define QNX4_DIR_ENTRY_SIZE_BITS 6 /* dir entry size shift */
	35	#define QNX4_XBLK_ENTRY_SIZE 0x200 /* xblk entry size */
	36	#define QNX4_INODES_PER_BLOCK 0x08 /* 512 / 64 */
	37
	38	/* for filenames */
	39	#define QNX4_SHORT_NAME_MAX 16
	40	#define QNX4_NAME_MAX 48
	41
	42	/*
	43	* This is the original qnx4 inode layout on disk.
	44	*/
	45	struct qnx4_inode_entry {
	46	char di_fname[QNX4_SHORT_NAME_MAX];
	47	qnx4_off_t di_size;
	48	qnx4_xtnt_t di_first_xtnt;
75043cb5 AD	49	__le32 di_xblk;
	50	__le32 di_ftime;
	51	__le32 di_mtime;
	52	__le32 di_atime;
	53	__le32 di_ctime;
1da177e4 LT	54	qnx4_nxtnt_t di_num_xtnts;
	55	qnx4_mode_t di_mode;
	56	qnx4_muid_t di_uid;
	57	qnx4_mgid_t di_gid;
	58	qnx4_nlink_t di_nlink;
	59	__u8 di_zero[4];
	60	qnx4_ftype_t di_type;
	61	__u8 di_status;
	62	};
	63
	64	struct qnx4_link_info {
	65	char dl_fname[QNX4_NAME_MAX];
75043cb5	66	__le32 dl_inode_blk;
1da177e4 LT	67	__u8 dl_inode_ndx;
	68	__u8 dl_spare[10];
	69	__u8 dl_status;
	70	};
	71
	72	struct qnx4_xblk {
75043cb5 AD	73	__le32 xblk_next_xblk;
75043cb5 AD	74	__le32 xblk_prev_xblk;
1da177e4 LT	75	__u8 xblk_num_xtnts;
1da177e4 LT	76	__u8 xblk_spare[3];
75043cb5	77	__le32 xblk_num_blocks;
1da177e4 LT	78	qnx4_xtnt_t xblk_xtnts[QNX4_MAX_XTNTS_PER_XBLK];
	79	char xblk_signature[8];
	80	qnx4_xtnt_t xblk_first_xtnt;
	81	};
	82
	83	struct qnx4_super_block {
	84	struct qnx4_inode_entry RootDir;
	85	struct qnx4_inode_entry Inode;
	86	struct qnx4_inode_entry Boot;
	87	struct qnx4_inode_entry AltBoot;
	88	};
	89
	90	#ifdef __KERNEL__
	91
	92	#define QNX4_DEBUG 0
	93
	94	#if QNX4_DEBUG
	95	#define QNX4DEBUG(X) printk X
	96	#else
	97	#define QNX4DEBUG(X) (void) 0
	98	#endif
	99
	100	struct qnx4_sb_info {
	101	struct buffer_head sb_buf; / superblock buffer */
	102	struct qnx4_super_block sb; / our superblock */
	103	unsigned int Version; /* may be useful */
	104	struct qnx4_inode_entry BitMap; / useful */
	105	};
	106
	107	struct qnx4_inode_info {
	108	struct qnx4_inode_entry raw;
	109	loff_t mmu_private;
	110	struct inode vfs_inode;
	111	};
	112
	113	extern struct dentry qnx4_lookup(struct inode dir, struct dentry dentry, struct nameidata nd);
	114	extern unsigned long qnx4_count_free_blocks(struct super_block *sb);
	115	extern unsigned long qnx4_block_map(struct inode *inode, long iblock);
	116
	117	extern struct buffer_head qnx4_bread(struct inode , int, int);
	118
	119	extern struct inode_operations qnx4_file_inode_operations;
	120	extern struct inode_operations qnx4_dir_inode_operations;
	121	extern struct file_operations qnx4_file_operations;
	122	extern struct file_operations qnx4_dir_operations;
	123	extern int qnx4_is_free(struct super_block *sb, long block);
	124	extern int qnx4_set_bitmap(struct super_block *sb, long block, int busy);
	125	extern int qnx4_create(struct inode inode, struct dentry dentry, int mode, struct nameidata *nd);
	126	extern void qnx4_truncate(struct inode *inode);
	127	extern void qnx4_free_inode(struct inode *inode);
	128	extern int qnx4_unlink(struct inode dir, struct dentry dentry);
	129	extern int qnx4_rmdir(struct inode dir, struct dentry dentry);
	130	extern int qnx4_sync_file(struct file file, struct dentry dentry, int);
	131	extern int qnx4_sync_inode(struct inode *inode);
	132
	133	static inline struct qnx4_sb_info qnx4_sb(struct super_block sb)
	134	{
	135	return sb->s_fs_info;
	136	}
	137
	138	static inline struct qnx4_inode_info qnx4_i(struct inode inode)
	139	{
	140	return container_of(inode, struct qnx4_inode_info, vfs_inode);
	141	}
142
143	static inline struct qnx4_inode_entry qnx4_raw_inode(struct inode inode)
144	{
145	return &qnx4_i(inode)->raw;
146	}
147
148	#endif /* __KERNEL__ */
149
150	#endif