sys/arch/amiga/dev/grf_ulreg.h

   1 /*      $NetBSD: grf_ulreg.h,v 1.9 2007/03/05 19:48:20 he 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