/* * @(#)ga.h	4.2	(ULTRIX)	7/17/90 *//************************************************************************ *									* *			Copyright (c) 1990 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.	* *									* ************************************************************************/#ifndef _GA_H_/* *	$Header: /local/4.0-12/io/tc/RCS/ga.h,v 1.15 90/05/07 11:25:09 fhsu Exp Locker: jensen $ */#define _GA_H_/* define ONLY ONE of these, please... */#undef  GA_ALLOC_KM			/* KM_ALLOC */#define GA_ALLOC_DT			/* static data */#undef  GA_ALLOC_TX			/* text */#define _4K	(1<<12)#define _8K 	(1<<13)#define _32K 	(1<<15)#define _64K 	(1<<16)#define _96K 	(_32K +_64K)#define _128K 	(1<<17)#define GA_CONSIZ _8K/* * Interrupt status bits: these bits are set in in gx_info 'intr_status' * field. * * INTR_ACTIVE is set by the server when it submits a packet to the STIC. * As long as it is set it means that there is at least one packet which * has not yet completed (and thus that the interrupt service routine can * be expected to be entered at some point in the future.  This bit * is cleared by the isr when it becomes blocked or idle. * * INTR_BLOCKED is set by the isr when it encounters a microcode packet * which it cannot deal with (e.g. one which must be emulated by the * server).  It is cleared by the server immediately prior to queueing * a packet which the isr can deal with. *  * INTR_CLIP is set by the isr when it is sending off a packet which * has specified a cliplist. * * INTR_ERR is set by the isr when it detects an error. * *   Value of intr_status	Meaning *   --------------------	------- *	       0                Idle.  No packet completions pending. *             1                A packet will complete in the future. *             2                Idle because isr can't emulate ucode pkt. *             3                ILLEGAL. */#define GA_INTR_ACTIVE	(1<<0)#define GA_INTR_BLOCKED (1<<1)#define GA_INTR_CLIP    (1<<2)#define GA_INTR_ERR     (1<<3)#define GA_INTR_NEEDSIG (1<<4)#define GA_RBUF_SIZE		_96K	/* ring buffer size in bytes *//* * Template for accessing various fields on the 2DA board. */typedef struct _ga_map {    int		stic_poll_reg;		/* 0x000000 */    char	__pad1[0x180000-sizeof(int)];    sticRegs	stic_reg;		/* 0x180000 */    char	__pad6[0x200000-0x180000-sizeof(sticRegs)];    bt459Regs	vdac_reg;		/* 0x200000 */    char	__pad3[0x300000-0x200000-sizeof(bt459Regs)];    int		rom[1<<18];		/* 0x300000 */} gaMap;#define GA_map		gaMap/* * (GA_map *) to GA field ptr */#define GA_POLL(G)		(& (((gaMap *)G)->stic_poll_reg) )#define GA_STIC(G)		(& (((gaMap *)G)->stic_reg) )#define GA_STAMP(G)		(((int)G) | 0xC0000)#define GA_VDAC(G)		(& (((gaMap *)G)->vdac_reg) )#define GA_ROM(G)		(((gaMap *)G)->rom)#ifndef KERNEL#define GAO_POLL(X)	GA_POLL (((gxInfo *)X)->gxo)#define GAO_VDAC(X)	GA_VDAC (((gxInfo *)X)->gxo)#define GAO_STIC(X)	GA_STIC (((gxInfo *)X)->gxo)#define GAO_STAMP(X)	GA_STAMP(((gxInfo *)X)->gxo)#define GAO_REQBUF(X,N)	(((gxInfo *)X)->rb_addr +3 +((GA_CMDBUF0_SIZE>>2)*(N)))#define GAO_RWSPAN(X)	(((gxInfo *)X)->rb_addr +3 +(GA_IMAGE_BUFFER_OFF>>2))#define GAO_SYS_TO_PHYS(X,A) \    (((gxInfo *)X)->rb_phys \     +((int)(A) -(3*sizeof(int)) -(int)(((gxInfo *)X)->rb_addr)))#define GX_Info		gxInfo		/* backward compat. */#define GX_POLL(X)	GAO_POLL(X)	/* should go away??? */#define GX_VDAC(X)	GAO_VDAC(X)#define GX_STIC(X)	GAO_STIC(X)#define GX_STAMP(G)	GAO_STAMP(X)#endif !kernel/****************************** * All definitions from here to EOF are related to servicing * packet-done interrupts ******************************//* sizes in bytes */#define  WORD		(0x4)#define  PAGE		(0x1000)#define  HALF_PAGE	(PAGE >> 1)#define  MEG		(0x100000)#define  GA_CMDBUF0_OFF			  (0 * PAGE)#define  GA_CMDBUF0_SIZE		(1 * PAGE)#define  GA_CMDBUF1_OFF			  (1 * PAGE)#define  GA_CMDBUF1_SIZE		(1 * PAGE)#define  GA_IMAGE_BUFFER_OFF		  (2 * PAGE + 12)#define  GA_IMAGE_BUFFER_SIZE		(3 * PAGE - 12)#define  GA_COMAREA_SRVCOM_OFF		  (5 * PAGE + 4)#define  GA_COMAREA_SRVCOM_SIZE		HALF_PAGE#define  GA_2DCOM_OFF			  (5 * PAGE + HALF_PAGE)#define  GA_2DCOM_SIZE			HALF_PAGE#define  GA_CLIPLIST_OFF		  (6 * PAGE)#define  GA_CLIPLIST_SIZE		(2 * PAGE)#define  GA_INTR_BUFFER_OFF		  (8 * PAGE)#define  GA_INTR_BUFFER_SIZE		(GA_QUEUE_PACKETS * PAGE)#ifdef KERNEL#define N_FLUSH               1#define N_PASSPACKET          5#define N_MAX_CLIPRECTS       8#define N_MAX_CLIPLISTS      16#define N_NO_CLIPLIST        (N_MAX_CLIPLISTS)#define NUM_REQUIRED_CONTEXT  4#define LINE_WIDTH_PER_PKT    1#define XYMASK_PER_PKT        1#endif KERNEL/*  * Given the address of a PixelStamp packet, return the  * index of the first word of the 2-word cliprect field */#ifdef N_MAX_CLIPRECTS			/* if kernel or server, then */					/* include all this stuff... */#ifdef notdef#define DECODE_CLIP_INDEX(p)  ( NUM_REQUIRED_CONTEXT + \	(((sticCmd *)(p))->LineWidthPer == LINE_WIDTH_PER_PKT) + \       ((((sticCmd *)(p))->XYMask == XYMASK_PER_PKT) << 3) )#endif notdef#define DECODE_CLIP_INDEX(p)  ( NUM_REQUIRED_CONTEXT + \	((((*p) & (1<<8))) >> 5) + ((((*p) & (1<<10))) >> 10) )typedef struct _stic_cmd {        unsigned Op                     :4;        unsigned RGBMode                :2;        unsigned ZMode                  :2;        unsigned XYMask                 :2;        unsigned LineWidthPer           :2;        unsigned Reserved0              :7;        unsigned ClipRect               :1;        unsigned Reserved1              :1;        unsigned Mesh                   :1;        unsigned Reserved2              :1;        unsigned AALine                 :1;        unsigned Reserved3              :7;        unsigned HSEquals               :1;} sticCmd;typedef struct {    unsigned long minval;    unsigned long maxval;} gaStampClipRect;typedef struct {        long		numClipRects;        long		refCount;        gaStampClipRect	clipRects[N_MAX_CLIPRECTS];} gaClipList;#define GA_QUEUE_PACKETS 16#define GA_LAST_QPACKET (GA_QUEUE_PACKETS-1)#ifdef notdef /* varaiable depth for debugging only */#    define GA_QDEPTH(p) ((p)->qDepth)#    define GA_QLAST(p) ((p)->qDepth-1)#else#    define GA_QDEPTH(p) GA_QUEUE_PACKETS#    define GA_QLAST(p) GA_LAST_QPACKET#endif notdef#ifdef notdef /* debug */#define NEXT_BUF(p2d, i) ( ((i) == GA_LAST_PACKET) ? 0 : (i)+1 )#define PREV_BUF(p2d, i) ( ((i) == 0 ) ? GA_LAST_PACKET : (i)-1 )#define ONELESSTHAN(i1, i2, p2d) (((i2) == 0) ? (i1) == GA_LAST_PACKET : \				        (i1) == (i2) - 1 )#else#define NEXT_BUF(p2d, i) ( ((i) == GA_QLAST(p2d)) ? 0 : (i)+1 )#define PREV_BUF(p2d, i) ( ((i) == 0 ) ? GA_QLAST(p2d) : (i)-1 )#define ONELESSTHAN(p2d, i1, i2) ( ((i2) == 0) ? (i1) == GA_QLAST(p2d) : \				        (i1) == (i2) - 1 )#endif notdef/* defined here mainly to avoid dragging in N10 include files */typedef struct _ga_Packet {     union {	struct {	    long opcode;	} un;	struct {	    long opcode;	    long word_count;	    long cliplist_sync;	    long data[1];	} PassPacket;	struct {	    long opcode;	    long word_count;	    long sram_phys_addr;	    long r3000_virt_addr;	} ReadSram;	struct {	    long opcode;	    long word_count;	    long sram_phys_addr;	    long r3000_virt_addr;	} WriteSram;	struct {	    long opcode;	    long sram_phys_addr;	    long data;	} PutData;	struct {	    long opcode;	    long cliplist_number;	    long cliprect_count;	    gaStampClipRect rect[1];	} LoadClipList;     } un;} ga_Packet, *ga_PacketPtr;typedef struct _Com2d {    long pad1[3];			/* get to aligned boundary */    long NoOp[10];			/* No-op packet area */    long Stic_NoOp[10];			/* Store Stic NoOp */    long Video_NoOp[4];			/* Store Video NoOp */    volatile long intr_status;		/* interrupt status */    volatile long lastRead;    volatile long lastWritten;    volatile long qDepth;    gaStampClipRect *pCliprect;    long numCliprect;    gaStampClipRect *fixCliprect;    volatile long *srv_qpoll[GA_QUEUE_PACKETS];    volatile long *intr_qpoll[GA_QUEUE_PACKETS];    volatile long *save_region[GA_QUEUE_PACKETS];} Com2d, *Com2dPtr;typedef struct ga_ComArea {    /*     * Request Buffer 0     */    long CmdBuf0[ GA_CMDBUF0_SIZE >> 2 ];    /*     * Request Buffer 1     */    long CmdBuf1[ GA_CMDBUF1_SIZE >> 2 ];    /*     * Image Buffer (pad0 to quad align; leave word at end for count value)     */    char pad0[12];    long image_buf[ (GA_IMAGE_BUFFER_SIZE+4) >> 2 ];    /*     * X Server Common Area (take away word to make up for count value)     */    long SRVCom[ (GA_COMAREA_SRVCOM_SIZE-4) >> 2 ];    /*     * 2d Server Common Area     */    Com2d SRV2DCom;    char pad1[GA_2DCOM_SIZE-sizeof(Com2d)];    /*     * Cliplist     */    gaClipList ClipL[ N_MAX_CLIPLISTS ];    char pad2[GA_CLIPLIST_SIZE-sizeof(gaClipList)*N_MAX_CLIPLISTS];    /*     * Interrupt-driven request buffers     */    long IntrBuf[GA_QUEUE_PACKETS][GA_CMDBUF0_SIZE >> 2];} ga_ComArea, *ga_ComAreaPtr;#endif n_max_cliprects#endif _GA_H_