sysinfo_depend.h

日本著名的的嵌入式实时操作系统T-Kernel的源码及用户手册。

/*
 *----------------------------------------------------------------------
 *    T-Kernel
 *
 *    Copyright (C) 2004 by Ken Sakamura. All rights reserved.
 *    T-Kernel is distributed under the T-License.
 *----------------------------------------------------------------------
 *
 *    Version:   1.01.00
 *    Released by T-Engine Forum(http://www.t-engine.org) at 2004/6/28.
 *
 *----------------------------------------------------------------------
 */

/*
 *	@(#)sysinfo_depend.h (sys/M32104)
 *
 *	System common information  
 *
 *   0x00600000	+-----------------------+
 *		|EIT branch		|
 *		|Address table		|
 *   0x006001d0	+-----------------------+
 *		|System common info. 	|
 *   0x00600240	+-----------------------+
 *
 *		EIT branch address table details 
 *   0x00600000	+-----------------------+	vector number
 *		|Default handler	|	0
 *		|System break		|	1
 *		|Reserved instruction exception|2
 *		|Address exception	|	3
 *   0x00600010	+-----------------------+
 *		|Trap 0 - 15		|	4
 *		|			|	|
 *		|			|	19
 *   0x00600050	+-----------------------+
 *		|External interrupt	|	20
 *		|Built-in ICU 0 - 63	|	|
 *		|			|	83
 *   0x00600150	+-----------------------+
 *		|External interrupt	|	84
 *		|PLD  ICU 0 - 31	|	|
 *		|			|	115
 *   0x006001d0	+-----------------------+
 */

#ifndef __SYS_SYSINFO_DEPEND_H__
#define __SYS_SYSINFO_DEPEND_H__

#ifdef __cplusplus
extern "C" {
#endif

#ifndef _in_asm_source_

/*
 * Boot mode/action mode 
 */
typedef union {
	struct {
		UW	debug:1;	/* When in debug mode 1 */
		UW	fsrcv:1;	/* When in disk repair mode 1 */
		UW	rsv:12;		/* Reserved (always 0) */
		UW	basic:1;	/* When in basic operation mode 1 */
		UW	rsv2:17;	/* Reserved (always 0) */
	} c;
	UW	w;
} BootMode;

#define	BM_DEBUG	0x00000001	/* Debug mode */
#define	BM_FSRCV	0x00000002	/* Disk repair mode */
#define	BM_BASIC	0x00004000	/* Basic operation mode */

/*
 * System common information 
 */
typedef struct {
	VP		sramtop;	/* Internal RAM free space top */
	VP		sramend;	/* Internal RAM free space end */
	VP		ramtop;		/* External RAM free space top */
	VP		ramend;		/* External RAM free space end */
	UH		Fclk;		/* Constant frequency clock (MHz) */
	UH		Pclk;		/* Peripheral I/O clock (MHz) */
	UB		*sysconf;	/* SYSCONF top */
	UB		*devconf;	/* DEVCONF top */
	UW		loop64us;	/* Loop count per 64 micro sec */
	BootMode	bm;		/* Boot mode */
	UB		bootdev[8];	/* Boot device name */
	VW		rsv[17];	/* Reserved (always 0) */
} SysCommonInfo;

/*
 * System common area 
 */
#define	N_INTVEC	116
typedef struct {
	FP		intvec[N_INTVEC];	/* EIT vector */
	SysCommonInfo	scinfo;			/* System common information */
} SysCommonArea;

#define	SCArea	( (SysCommonArea*)0x00600000 )
#define	SCInfo	( SCArea->scinfo )

#endif /* _in_asm_source_ */

/*
 * Vector table address 
 */
#define	EIT_VECTBL	0x00600000	/* EIT branch table top */

#define	EITVEC(n)	( EIT_VECTBL + (n) * 4 )

#define	EIT_DEFAULT	0		/* Default handler */
#define	EIT_SBI		1		/* System break */
#define	EIT_RIE		2		/* Reserved instruction exception */
#define	EIT_AE		3		/* Address exception */
#define	EIT_TRAP(n)	(  4 + (n) )	/* Trap 0 - 15 */
#define	EIT_ICU1(n)	( 20 + (n) )	/* Built-in interrupt controller */
#define	EIT_ICU2(n)	( 84 + (n) )	/* PLD interrupt controller */

#ifdef __cplusplus
}
#endif
#endif /* __SYS_SYSINFO_DEPEND_H__ */