sguser.h

<B>Digital的Unix操作系统VAX 4.2源码</B>

/*
 * 	@(#)sguser.h	4.1	(ULTRIX)	7/2/90
 */

/************************************************************************
 *									*
 *			Copyright (c) 1986, 87 by			*
 *		Digital Equipment Corporation, Maynard, MA		*
 *			All rights reserved.				*
 *									*
 *   This software is furnished under a license and may be used and	*
 *   copied  only  in accordance with the terms of such license and	*
 *   with the  inclusion  of  the  above  copyright  notice.   This	*
 *   software  or  any  other copies thereof may not be provided or	*
 *   otherwise made available to any other person.  No title to and	*
 *   ownership of the software is hereby transferred.			*
 *									*
 *   The information in this software is subject to change  without	*
 *   notice  and should not be construed as a commitment by Digital	*
 *   Equipment Corporation.						*
 *									*
 *   Digital assumes no responsibility for the use  or  reliability	*
 *   of its software on equipment which is not supplied by Digital.	*
 *									*
 ************************************************************************/

/***********************************************************************
 *
 * Modification History:
 *
 * 08-May-89 -- rafiey (Ali Rafieymehr)
 *	Fixed a bug in color_buf structure. The problem was only happening
 *	on eight plane machines.
 *
 * 07-Mar-87 -- vasudev (Vasudev K. Bhandarkar)
 *      Moved declarations of sg_next_fifo, sg_int_flag and change_section
 *      into shared memory (FIFOreq_header) so that these could be accessible 
 *      to user processes such as X.
 *
 * 18-Oct-87 -- tim (Tim Burke)
 *	Extended number of printable characters to 190 from 95.  This is being
 *	done for 8-bit support.
 *
 * 04-Aug-87 -- rafiey (Ali Rafieymehr)
 *	Moved sg_next_fifo declaration from "../qdddx/globals.h" to
 *	this file.
 *
 * 19-Mar-87 -- fred (Fred Canter for Ali Rafieymehr)
 *	X in the kernel changes.
 *
 * 11-Feb-87 -- rafiey (Ali Rafieymehr)
 *	Moved color_cursor structure from sgreg.h to this file.
 *
 * 07-Jan-87  -- rafiey (Ali Rafieymehr)
 *	Modified some of the constants used for cursor.
 *
 * 18-Jun-86  -- rafiey (Ali Rafieymehr)
 *	Created this header file for the VAXstar color driver.
 *	Derived from qduser.h.
 *
 **********************************************************************/

#ifdef KERNEL
#include "../io/uba/qevent.h"		/* include event struct defs */
#else
#include <io/uba/qevent.h>
#endif

/*
 * VAXstar device map
 */

	struct sgmap {			/* map of register blocks in VAXstar */

	    char *adder;
	    char *fcc;
	    char *vdac;
	    char *cur;
	    char *vrback;
	    char *fiforam;
	    char *red;
	    char *blue;
	    char *green;
	};


/*
 * constants used in font operations
 */

#define CHARS		190			/* # of chars in the font */
#define CHAR_HEIGHT	15			/* char height in pixels */
#define CHAR_WIDTH	8			/* char width in pixels*/
#define FONT_WIDTH	(CHAR_WIDTH * CHARS)	/* font width in pixels */
#define FONT_HEIGHT	32
#define FONT_X		0			/* font's off screen adrs */
#define FONT_Y		(2048 - CHAR_HEIGHT)
#define ROWS		CHAR_HEIGHT

/*
 * constants used for cursor
 */

#define	MAX_CUR_X	1024		/* max cursor x position */
#define	MAX_CUR_Y	864		/* max cursor y position */
#define ACC_OFF 	0x01		/* acceleration is inactive */
#define	CURS_ENB	0x0001		/* cursor on */

/*
 * VAXstar interrupt controller register bits
 *
 */

#define SINT_VS		0x0004
#define SINT_VF		0x0008

/*
 * Cursor Command Register bits
 *
 */

#define	ENPA	0000001
#define	FOPA	0000002
#define	ENPB	0000004
#define	FOPB	0000010
#define	XHAIR 	0000020
#define	XHCLP	0000040
#define	XHCL1	0000100
#define	XHWID	0000200
#define	ENRG1	0000400
#define	FORG1	0001000
#define	ENRG2	0002000
#define	FORG2	0004000
#define	LODSA	0010000
#define	VBHI	0020000
#define	HSHI	0040000
#define	TEST	0100000

/*
 * Line Prameter Register bits
 *
 */

#define	SER_KBD      000000
#define	SER_POINTER  000001
#define	SER_COMLINE  000002
#define	SER_PRINTER  000003
#define	SER_CHARW    000030
#define	SER_STOP     000040
#define	SER_PARENB   000100
#define	SER_ODDPAR   000200
#define	SER_SPEED    006000
#define	SER_RXENAB   010000

/*
 * FCC register and bit definitions
 */

#define	IIDLE		0x0001	/* status of "Pixel transfer idle" interrupt */
#define ENIDLE		0x0002  /* enable "Pixel transfer idle" interrupt */
#define	ENTHRSH		0x0040  /* enable FIFO threshold interrupt */
#define	ITHRESH		0x0080	/* status of "FIFO pass threshold" interrupt */

/*
 * Color board general CSR bit definitions
 */

#define IDLE		0x8000      /* FIFO has data or not */
#define FLUSH		0x4000      /* FIFO complete current operation */
#define	ADDREQ		0x2000      /* ADDER requesting I/O */
#define	PTB_DECOM_ENB	0x1F00      /* host-to-bitmap (use decompression) */
#define PTB_UNPACK_ENB	0x0700      /* host-to-bitmap (unpack bytes) */
#define PTB_ENB		0x0600      /* host-to-bitmap xfer */
#define	BTP_COM_ENB	0x1D00      /* bitmap-to-host (use compression) */
#define BTP_PACK_ENB	0x0500      /* bitmap-to-host (pack bytes) */
#define BTP_ENB		0x0400      /* bitmap-to-host xfer */
#define DL_ENB		0x0200      /* display list to ADDER */
#define HALT		0x0000      /* halt */
#define	DIAG		0x0080	    /* diagnostic mode */
#define	CTESTH		0x0040	    /* TEST bit from the cursor chip */
#define	INTMPH		0x0020	    /* status bit */
#define	FADR16		0x0002	    /* fifo address bit 16 */
#define	FADR15		0x0001	    /* fifo address bit 15 */

/* VAXstar memcsr bit definitions */

#define	UNBLANK			0x0020
#define SYNC_ON			0x0008

	struct fcc {

	    unsigned short cbcsr;	/* color board general CSR */
	    unsigned short icsr;	/* interrupt control and status reg. */
	    unsigned short fcsr;	/* fifo control and status register */
	    unsigned short fwused;	/* fifo words used */
	    unsigned short thresh;	/* threshold for comparing with fwused*/
	    unsigned short zoo;		/* not used */
	    unsigned short put;		/* put pointer for fifo control */
	    unsigned short get;		/* get pointer for fifo control */
	    unsigned short diag;	/* data for diagnostics modes */
	    unsigned short cmpa;
	    unsigned short cmpb;
	    unsigned short cmpc;	/* pla address bits */
	    unsigned short pad[116];
	};


/* cursor registers */

	struct	color_cursor {
	    u_short cmdr;		/* command register */
	    u_short xpos;		/* x position Register */
	    u_short ypos;		/* y position register */
	    u_short xmin1;		/* xmin1 active region register */
	    u_short xmax1;		/* xmax1 active region register */
	    u_short ymin1;		/* ymin1 active region register */
	    u_short ymax1;		/* ymax1 active region register */
	    u_short pad[4];
	    u_short xmin2;		/* xmin2 active region register */
	    u_short xmax2;		/* xmax2 active region register */
	    u_short ymin2;		/* ymin2 active region register */
	    u_short ymax2;		/* ymax2 active region register */
	    u_short cmem;		/* cursor memory register */
	};

/*
 * macros to transform device coordinates to hardware cursor coordinates
 */

#define CURS_MIN_X 	216	/* device coordinate x = 0 */
#define CURS_MIN_Y 	38	/* device coordinate y = 0 */


/*********************************************************************
 *
 *	EVENT QUEUE DEFINITIONS
 *
 *********************************************************************
 * most of the event queue definitions are found in "qevent.h".  But a
 * few things not found there are here.
 */ 	

/* The event queue header */
	
typedef struct sginput {

	    struct _vs_eventqueue header;  /* event queue ring handling */

/* for VS100 and QVSS compatability reasons, additions to this
 * structure must be made below this point.
 */

	    struct _vs_cursor curs_pos;	/* current mouse position */
	    struct _vs_box curs_box;	/* cursor reporting box */

	};
	
/* vse_key field.  definitions for mouse buttons */

#define VSE_LEFT_BUTTON		0
#define VSE_MIDDLE_BUTTON	1
#define VSE_RIGHT_BUTTON	2

/* vse_key field.  definitions for mouse buttons */

#define VSE_T_LEFT_BUTTON	0
#define VSE_T_FRONT_BUTTON	1
#define VSE_T_RIGHT_BUTTON	2
#define VSE_T_BACK_BUTTON	4

#define VSE_T_BARREL_BUTTON	VSE_T_LEFT_BUTTON
#define VSE_T_TIP_BUTTON	VSE_T_FRONT_BUTTON

/*
 * These are the macros to be used for loading and extracting from the event
 * queue.  It is presumed that the macro user will only use the access macros
 * if the event queue is non-empty ( ISEMPTY(eq) == FALSE ), and that the
 * driver will only load the event queue after checking that it is not full
 * ( ISFULL(eq) == FALSE ).  ("eq" is a pointer to the event queue header.)
 *
 *   Before an event access session for a particular event, the macro users
 * must use the xxxBEGIN macro, and the xxxEND macro after an event is through
 * with.  As seen below, the xxxBEGIN and xxxEND macros maintain the event
 * queue access mechanism.
 *
 * First, the macros to be used by the event queue reader 
 */

#define ISEMPTY(eq)	  ((eq)->header.head == (eq)->header.tail)
#define GETBEGIN(eq)	  (&(eq)->header.events[(eq)->header.head]) 

#define GET_X(event)	  ((event)->vse_x)  	     /* get x position */
#define GET_Y(event)	  ((event)->vse_y)  	     /* get y position */
#define GET_TIME(event)	  ((event)->vse_time) 	     /* get time */
#define GET_TYPE(event)	  ((event)->vse_type)	     /* get entry type */
#define GET_KEY(event)	  ((event)->vse_key)  	     /* get keycode */
#define GET_DIR(event)	  ((event)->vse_direction)     /* get direction */
#define GET_DEVICE(event) ((event)->vse_device)        /* get device */

#define GETEND(eq)        (++(eq)->header.head >= (eq)->header.size ? \
			   (eq)->header.head = 0 : 0 )

/*
 * macros to be used by the event queue loader
 */

/* ISFULL yields TRUE if queue is full */