sys/arch/atari/include/video.h

   1 /*      $NetBSD: video.h,v 1.6 1996/03/27 10:08:49 leo Exp $    */
   2
   3 /*
   4  * Copyright (c) 1995 Leo Weppelman.
   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  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #ifndef _MACHINE_VIDEO_H
  29 #define _MACHINE_VIDEO_H
  30 /*
  31  * Access to circuitry for video
  32  */
  33
  34 #define VIDEO   ((struct video *)AD_VIDEO)
  35
  36 struct video {
  37     volatile    char    vdb[14];        /* sparsely filled                  */
  38     volatile    u_short vd_line_wide;   /* Falcon line word distance        */
  39     volatile    u_short vd_vert_wrap;   /* Falcon line length               */
  40     volatile    char    vd_fill0[45];   /* filler                           */
  41     volatile    u_short vd_st_rgb[16];  /* RGB for simultaneous colors  (ST)*/
  42     volatile    u_char  vd_st_res;      /* ST resolution                    */
  43     volatile    char    vd_fill1;       /* filler                           */
  44     volatile    u_short vd_tt_res;      /* TT-resultion mode                */
  45     volatile    u_char  vd_ste_hscroll; /* MEGA STe hor bitwise scroll      */
  46     volatile    u_short vd_fal_res;     /* Falcon resolution                */
  47     volatile    char    vd_fill2[23];
  48     volatile    u_short vd_h_hold_cnt;  /* Falcon horizontal hold counter   */
  49     volatile    u_short vd_h_hold_tim;  /* Falcon horizontal hold timer     */
  50     volatile    u_short vd_h_bord_beg;  /* Falcon horizontal border begin   */
  51     volatile    u_short vd_h_bord_end;  /* Falcon horizontal border end     */
  52     volatile    u_short vd_h_dis_beg;   /* Falcon horizontal display begin  */
  53     volatile    u_short vd_h_dis_end;   /* Falcon horizontal display end    */
  54     volatile    u_short vd_h_ss;        /* Falcon horizontal SS             */
  55     volatile    u_short vd_h_fs;        /* Falcon horizontal FS             */
  56     volatile    u_short vd_h_hh;        /* Falcon horizontal HH             */
  57     volatile    char    vd_fill3[13];
  58     volatile    u_short vd_v_freq_cnt;  /* Falcon vertical frequency count  */
  59     volatile    u_short vd_v_freq_tim;  /* Falcon vertical frequency timer  */
  60     volatile    u_short vd_v_bord_beg;  /* Falcon vertical border begin     */
  61     volatile    u_short vd_v_bord_end;  /* Falcon vertical border end       */
  62     volatile    u_short vd_v_dis_beg;   /* Falcon vertical display begin    */
  63     volatile    u_short vd_v_dis_end;   /* Falcon vertical display end      */
  64     volatile    u_short vd_v_ss;        /* Falcon vertical SS               */
  65     volatile    char    vd_fill4[17];
  66     volatile    u_short vd_fal_ctrl;    /* Falcon video control             */
  67     volatile    u_short vd_fal_mode;    /* Falcon video mode                */
  68     volatile    char    vd_fill5[315];
  69     volatile    u_short vd_tt_rgb[256]; /* RGB for simultaneous TT colors   */
  70     volatile    char    vd_fill6[4608];
  71     volatile    u_long  vd_fal_rgb[256];/* RGB for Falcon colors            */
  72 };
  73
  74 #define vd_ramh         vdb[ 1] /* base address Video RAM, high byte    */
  75 #define vd_ramm         vdb[ 3] /* base address Video RAM, mid byte     */
  76 #define vd_raml         vdb[13] /* base address Video RAM, low byte     */
  77 #define vd_ptrh         vdb[ 5] /* scan address Video RAM, high byte    */
  78 #define vd_ptrm         vdb[ 7] /* scan address Video RAM, mid byte     */
  79 #define vd_ptrl         vdb[ 9] /* scan address Video RAM, low byte     */
  80 #define vd_sync         vdb[10] /* synchronization mode                 */
  81
  82 /* bits in vd_sync: */
  83 #define SYNC_EXT        0x01    /* extern sync                          */
  84 #define SYNC_50         0x02    /* 50 Hertz (used for color)            */
  85
  86 /* bits in vd_st_rgb[]: */
  87 #define RGB_B           0x0007
  88 #define RGB_G           0x0070
  89 #define RGB_R           0x0700
  90
  91 /* some values for vd_st_rgb[]: */
  92 #define RGB_BLACK       0x0000
  93 #define RGB_RED         0x0700
  94 #define RGB_GREEN       0x0070
  95 #define RGB_BLUE        0x0007
  96 #define RGB_WHITE       0x0777
  97 #define RGB_MAGENTA     0x0707
  98 #define RGB_CYAN        0x0077
  99 #define RGB_YELLOW      0x0770
 100 #define RGB_LGREY       0x0555
 101 #define RGB_DGREY       0x0222
 102
 103 /* values for vd_st_res: */
 104 #define RES_LOW         0x00    /* 320x200, 16 colors                   */
 105 #define RES_MID         0x01    /* 640x200,  4 colors                   */
 106 #define RES_HIGH        0x02    /* 640x400, monochrome                  */
 107
 108 /* masks for vd_tt_res: */
 109 #define RES_STLOW       0x0000  /* 320x200, 16 colors                   */
 110 #define RES_STMID       0x0100  /* 640x200,  4 colors                   */
 111 #define RES_STHIGH      0x0200  /* 640x400, monochrome                  */
 112 #define RES_TTMID       0x0400  /* 640x480, 16 colors                   */
 113 #define RES_TTHIGH      0x0600  /* 1280x960, monochrome                 */
 114 #define RES_TTLOW       0x0700  /* 320x480,  256 colors                 */
 115 #define TT_PALLET       0x000f  /* Pallette number                      */
 116 #define TT_HYMONO       0x8000  /* Hyper mono mode                      */
 117 #define TT_SHOLD        0x1000  /* Sample/hold mode                     */
 118
 119 /* The falcon video modes */
 120 #define RES_FALAUTO     0       /* Falcon resolution dedected at boot   */
 121 #define RES_VGA2        1       /* 640x480,   2 colors                  */
 122 #define RES_VGA4        2       /* 640x480,   4 colors                  */
 123 #define RES_VGA16       3       /* 640x480,  16 colors                  */
 124 #define RES_VGA256      4       /* 640x480, 256 colors                  */
 125 #define RES_DIRECT      5       /* 320x200, 65536 colors                */
 126 #define RES_FAL_STLOW   6       /* 320x200,  16 colors                  */
 127 #define RES_FAL_STMID   7       /* 640x200,   4 colors                  */
 128 #define RES_FAL_STHIGH  8       /* 640x400,   2 colors                  */
 129 #define RES_FAL_TTLOW   9       /* 320x480, 256 colors                  */
 130
 131 /* Falcon monitor types */
 132 #define FAL_SM          0x0000
 133 #define FAL_SC          0x0100
 134 #define FAL_VGA         0x0200
 135 #define FAL_TV          0x0300
 136
 137 #endif /*  _MACHINE_VIDEO_H */