1 /* $NetBSD: video.h,v 1.10 2023/03/25 21:51:12 andvar 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-resolution 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 /* Palette 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 detected 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 */ 138