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grf_ulreg.h revision 1.2 
      1 /*	$NetBSD: grf_ulreg.h,v 1.2 1995/10/07 19:54:59 chopps Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995 Ignatios Souvatzis
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Lutz Vieweg.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     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 be 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) (gsp)->hstadrh = (adrs)>>16; (gsp)->hstadrl = (adrs)
     64 #define GSPGETHADRS(gsp) ((gsp)->hstadrh << 16 | (gsp)->hstadrl)
     65 
     66 /* Standard addresses in GSP memory */
     67 
     68 #define PUT_PTR_ADRS    0xFFA20000	/* put pointer in ring buffer */
     69 #define PUT_HI_PTR_ADRS 0xFFA20010	/* put pointer high word */
     70 #define GET_PTR_ADRS    0xFFA20020	/* get pointer (low word) */
     71 #define GSP_MODE_ADRS   0xFFA20040	/* GSP mode word */
     72 
     73 /* Bits in GSP mode word */
     74 #define GMODE_HOLD      1               /* hold screen */
     75 #define GMODE_FLUSH     2               /* flush GSP input queue */
     76 #define GMODE_ALTSCRN   4               /* use alternate screen */
     77 #define GMODE_DISPCTRL  8               /* display control chars */
     78 
     79 /* command words */
     80 #define GCMD_CMD_MSK	0x000F
     81 #define GCMD_PAR_MSK	0xFFF0
     82 
     83 #define GCMD_NOP	0
     84 #define GCMD_CHAR	1	/* char, fg, bg, x, y */
     85 #define GCMD_FILL	2	/* fg, x, y, w, h, ppop */
     86 #define GCMD_PIXBLT	3	/* x, y, w, h, dx, dy */
     87 #define GCMD_FNTMIR	4	/* */
     88 #define GCMD_CMAP	5	/* overlay==1, index, red, green, blue */
     89 #define GCMD_MCHG	6	/* width, height, baseh, basel, pitch, depth */
     90 
     91 struct grf_ul_softc {
     92 	struct grf_softc	gus_sc;
     93 	u_int8_t		gus_imcmap[768];
     94 	u_int8_t		gus_ovcmap[12];
     95 	u_int8_t		gus_ovslct;
     96 	/* realconfig stuff assumes this is last, else it would get copied: */
     97 	struct isr		gus_isr;
     98 };
     99 
    100 #ifdef _KERNEL
    101 void gsp_write(struct gspregs *gsp, u_int16_t *data, size_t size);
    102 int grful_cnprobe(void);
    103 void grful_iteinit(struct grf_softc *gp);
    104 #endif
    105 
    106