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      1 /*	$NetBSD: grf_ulreg.h,v 1.10 2008/04/28 20:23:12 martin 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Registers etc. for the University of Lowell graphics board.
     34  */
     35 
     36 struct gspregs {
     37 	/*
     38 	 * alas, they didn't invert the A1 bit, so we have to write the
     39 	 * address pointer in two parts
     40 	 */
     41 	volatile u_short hstadrl;
     42 	volatile u_short hstadrh;
     43 	volatile u_short data;
     44 	volatile u_short ctrl;
     45 };
     46 
     47 /* Bits in ctrl */
     48 #define HLT	0x8000
     49 #define CF	0x4000
     50 #define LBL	0x2000
     51 #define INCR	0x1000
     52 #define INCW	0x0800
     53 #define NMIM	0x0200
     54 #define NMI	0x0100
     55 
     56 #define INTOUT	0x0080
     57 #define MSGOUT	0x0070
     58 #define INTIN	0x0008
     59 #define	MSGIN	0x0007
     60 
     61 /* address macros */
     62 
     63 #define GSPSETHADRS(gsp,adrs)	do {	\
     64     (gsp)->hstadrh = (adrs) >> 16;	\
     65     (gsp)->hstadrl = (adrs) & 0xFFFF;	\
     66     } while (0)
     67 #define GSPGETHADRS(gsp)	((gsp)->hstadrh << 16 | (gsp)->hstadrl)
     68 
     69 /* Standard addresses in GSP memory */
     70 
     71 #define PUT_PTR_ADRS    0xFFA20000	/* put pointer in ring buffer */
     72 #define PUT_HI_PTR_ADRS 0xFFA20010	/* put pointer high word */
     73 #define GET_PTR_ADRS    0xFFA20020	/* get pointer (low word) */
     74 #define GSP_MODE_ADRS   0xFFA20040	/* GSP mode word */
     75 
     76 /* Bits in GSP mode word */
     77 #define GMODE_HOLD      1               /* hold screen */
     78 #define GMODE_FLUSH     2               /* flush GSP input queue */
     79 #define GMODE_ALTSCRN   4               /* use alternate screen */
     80 #define GMODE_DISPCTRL  8               /* display control chars */
     81 
     82 /* command words */
     83 #define GCMD_CMD_MSK	0x000F
     84 #define GCMD_PAR_MSK	0xFFF0
     85 
     86 #define GCMD_NOP	0
     87 #define GCMD_CHAR	1	/* char, fg, bg, x, y */
     88 #define GCMD_FILL	2	/* fg, x, y, w, h, ppop */
     89 #define GCMD_PIXBLT	3	/* x, y, w, h, dx, dy */
     90 #define GCMD_FNTMIR	4	/* */
     91 #define GCMD_CMAP	5	/* overlay==1, index, red, green, blue */
     92 #define GCMD_MCHG	6	/* width, height, baseh, basel, pitch, depth */
     93 
     94 struct grf_ul_softc {
     95 	struct grf_softc	gus_sc;
     96 	u_int8_t		gus_imcmap[768];
     97 	u_int8_t		gus_ovcmap[12];
     98 	u_int8_t		gus_ovslct;
     99 	/* realconfig stuff assumes this is last, else it would get copied: */
    100 	struct isr		gus_isr;
    101 };
    102 
    103 #ifdef _KERNEL
    104 void gsp_write(volatile struct gspregs *gsp, u_int16_t *data, size_t size);
    105 int grful_cnprobe(void);
    106 void grful_iteinit(struct grf_softc *gp);
    107 #endif
    108 
    109