segment.h

T-kernel 的extension源代码

/*
 *----------------------------------------------------------------------
 *    T-Kernel / Standard Extension
 *
 *    Copyright (C) 2006 by Ken Sakamura. All rights reserved.
 *    T-Kernel / Standard Extension is distributed 
 *      under the T-License for T-Kernel / Standard Extension.
 *----------------------------------------------------------------------
 *
 *    Version:   1.00.00
 *    Released by T-Engine Forum(http://www.t-engine.org) at 2006/8/11.
 *
 *----------------------------------------------------------------------
 */

/*
 *	segment.h
 *
 *	Segment management
 */

#ifndef __EXTENSION_SYS_SEGMENT_H__
#define __EXTENSION_SYS_SEGMENT_H__

#include <basic.h>
#include <extension/typedef.h>
#include <sys/segment.h>


#ifdef __cplusplus
extern "C" {
#endif

/*
 * Specify map
 */
typedef struct {
	unsigned int	resv:3;
	unsigned int	rank:3;		/* Specify rank */
	unsigned int	real:1;		/* Specify real/virtual IO */
	unsigned int	clear:3;	/* Specify clear */
	unsigned int	level:6;	/* Specify access level */
	UW		space:16;	/* Specify map space */
	VP		addr;		/* Specify map address */
	VW		info;		/* Map information */
} MapMode;

/* Define map clear */
typedef	enum {
	MapNoClr	= 0x0,	/* Clear */
	MapClr		= 0x1,	/* Not clear */
	MapUnsettle	= 0x4,	/* Undefined */
	MapNoClrTop	= 0x5,	/* Not clear first logical block */
	MapNoClrEnd	= 0x6	/* Not clear last logical block */
} MapModeClr;

/* Define map rank */
typedef	enum {
	MapRankPROG	= 0,	/* For program execution*/
	MapRankMM0	= 1,	/* For memory manager */
	MapRankMM1	= 2,	/* For memory manager (not used) */
	MapRankMM2	= 3,	/* For memory manager (not used) */
	MapRankFM0	= 4,	/* For file manager (data) */
	MapRankFM1	= 5,	/* For file manager (management information) */
	MapRankFM2	= 6,	/* For file manager */
	MapRankFM3	= 7	/* For file manager */
} MapModeRank;

/*
 * Error information
 */
typedef struct {
	ER	err;		/* Error code */
	ID	diskid;		/* ID of disk where error occurred */
	UW	blk;		/* Physical block number of disk where error occurred */
	ID	taskid;		/* ID of mapped task */
	MapMode	mode;		/* Mode of map where error occurred */
} DiskErrInfo;

/*
 * File system information
 */
typedef struct {
	UH	lbsz;		/* Logical block size (bytes) */
	UH	btsz;		/* Boot block size (bytes) */
} FsSpec;

/*
 * Device open mode
 *	(*) Compliant with open mode for device management
 */
#define	D_ATTACH	0x0004U	/* Connect to file system */
#define	D_READ		0x0001U	/* Read-only open */
#define	D_WRITE		0x0002U	/* Write-only open */
#define	D_UPDATE	0x0003U	/* Open for update */
#define	D_EXCL		0x0100U	/* Specify exclusive mode */
#define	D_WEXCL		0x0200U	/* Specify exclusive write mode */

/*
 * Flag of UnmapDisk()
 */
#define	MD_RDONLY	0x0000U	/* Read only */
#define	MD_WRITE	0x0001U	/* Read & write */

/*
 * Definitions for automatic generation of interface library (mkiflib)
 */
/*** DEFINE_IFLIB
[INCLUDE FILE]
<sys/segment.h>

[PREFIX]
SEG
***/

/* [BEGIN SYSCALLS] */
IMPORT ER	AttachFS(TC *devname, UW omode, PINFO *pinfo, DiskInfo *diskinfo);
IMPORT ER	CheckFS(TC *devname, UW omode, PINFO *pinfo);
IMPORT ER	DetachFS(ID diskid, PINFO *pinfo, BOOL eject);
IMPORT ER	SyncFS(ID diskid, VW info);
IMPORT ER	MapDisk(ID diskid, PhyBlk *block, MapMode *mode);
IMPORT ER	UnmapDisk(ID mapid, UW flag);
IMPORT ER	NotifyDiskErr(FP errhdr);
IMPORT ER	InformFS(ID diskid, FsSpec *spec);

/* ALIGN_NO 0x100 */
#ifndef LockSpace
IMPORT ER	LockSpace( VP laddr, INT len );
IMPORT ER	UnlockSpace( VP laddr, INT len );
#endif
IMPORT INT	CnvPhysicalAddr( VP laddr, INT len, VP *paddr );
IMPORT ER	ChkSpace( VP laddr, INT len, UINT mode, UINT env );
IMPORT INT	ChkSpaceTstr( TC *str, INT max, UINT mode, UINT env );
IMPORT INT	ChkSpaceBstr( UB *str, INT max, UINT mode, UINT env );
IMPORT INT	ChkSpaceLen( VP laddr, INT len, UINT mode, UINT env, INT lsid );
IMPORT INT	ReadMemSpace( VP laddr, VP buf, INT len, INT lsid );
IMPORT INT	WriteMemSpace( VP laddr, VP buf, INT len, INT lsid );
IMPORT INT	SetMemSpaceB( VP laddr, INT len, UB data, INT lsid );

/* ALIGN_NO 0x100 */
IMPORT ER	MapMemory( VP paddr, INT len, UINT attr, VP *laddr );
IMPORT ER	UnmapMemory( VP laddr );

/* ALIGN_NO 0x1000 */
IMPORT ER	MakeSpace( VP laddr, INT npage, INT lsid, UINT pte );
IMPORT ER	UnmakeSpace( VP laddr, INT npage, INT lsid );
IMPORT ER	ChangeSpace( VP laddr, INT npage, INT lsid, UINT pte );
/* [END SYSCALLS] */

#ifdef __cplusplus
}
#endif
#endif /* __EXTENSION_SYS_SEGMENT_H__ */