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grf_ulreg.h revision 1.6 
      1 /*	$NetBSD: grf_ulreg.h,v 1.6 1999/02/16 23:34:12 is Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1995 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ignatios Souvatzis.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Registers etc. for the University of Lowell graphics board.
     41  */
     42 
     43 struct gspregs {
     44 	/*
     45 	 * alas, they didn't invert the A1 bit, so we have to write the
     46 	 * address pointer in two parts
     47 	 */
     48 	__volatile u_short hstadrl;
     49 	__volatile u_short hstadrh;
     50 	__volatile u_short data;
     51 	__volatile u_short ctrl;
     52 };
     53 
     54 /* Bits in ctrl */
     55 #define HLT	0x8000
     56 #define CF	0x4000
     57 #define LBL	0x2000
     58 #define INCR	0x1000
     59 #define INCW	0x0800
     60 #define NMIM	0x0200
     61 #define NMI	0x0100
     62 
     63 #define INTOUT	0x0080
     64 #define MSGOUT	0x0070
     65 #define INTIN	0x0008
     66 #define	MSGIN	0x0007
     67 
     68 /* address macros */
     69 
     70 #define GSPSETHADRS(gsp,adrs)	do {	\
     71     (gsp)->hstadrh = (adrs) >> 16;	\
     72     (gsp)->hstadrl = (adrs) & 0xFFFF;	\
     73     } while (0)
     74 #define GSPGETHADRS(gsp)	((gsp)->hstadrh << 16 | (gsp)->hstadrl)
     75 
     76 /* Standard addresses in GSP memory */
     77 
     78 #define PUT_PTR_ADRS    0xFFA20000	/* put pointer in ring buffer */
     79 #define PUT_HI_PTR_ADRS 0xFFA20010	/* put pointer high word */
     80 #define GET_PTR_ADRS    0xFFA20020	/* get pointer (low word) */
     81 #define GSP_MODE_ADRS   0xFFA20040	/* GSP mode word */
     82 
     83 /* Bits in GSP mode word */
     84 #define GMODE_HOLD      1               /* hold screen */
     85 #define GMODE_FLUSH     2               /* flush GSP input queue */
     86 #define GMODE_ALTSCRN   4               /* use alternate screen */
     87 #define GMODE_DISPCTRL  8               /* display control chars */
     88 
     89 /* command words */
     90 #define GCMD_CMD_MSK	0x000F
     91 #define GCMD_PAR_MSK	0xFFF0
     92 
     93 #define GCMD_NOP	0
     94 #define GCMD_CHAR	1	/* char, fg, bg, x, y */
     95 #define GCMD_FILL	2	/* fg, x, y, w, h, ppop */
     96 #define GCMD_PIXBLT	3	/* x, y, w, h, dx, dy */
     97 #define GCMD_FNTMIR	4	/* */
     98 #define GCMD_CMAP	5	/* overlay==1, index, red, green, blue */
     99 #define GCMD_MCHG	6	/* width, height, baseh, basel, pitch, depth */
    100 
    101 struct grf_ul_softc {
    102 	struct grf_softc	gus_sc;
    103 	u_int8_t		gus_imcmap[768];
    104 	u_int8_t		gus_ovcmap[12];
    105 	u_int8_t		gus_ovslct;
    106 	/* realconfig stuff assumes this is last, else it would get copied: */
    107 	struct isr		gus_isr;
    108 };
    109 
    110 #ifdef _KERNEL
    111 void gsp_write(struct gspregs *gsp, u_int16_t *data, size_t size);
    112 int grful_cnprobe(void);
    113 void grful_iteinit(struct grf_softc *gp);
    114 #endif
    115 
    116