/* $NetBSD: video.h,v 1.1.1.1 1995/03/26 07:12:08 leo Exp $ */ /* * Copyright (c) 1995 Leo Weppelman. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Leo Weppelman. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _MACHINE_VIDEO_H #define _MACHINE_VIDEO_H /* * Access to circuitry for video */ #define VIDEO ((struct video *)AD_VIDEO) struct video { volatile char vdb[64]; /* sparsely filled */ volatile u_short vd_st_rgb[16]; /* RGB for simultaneous colors (ST)*/ volatile u_char vd_st_res; /* ST resolution */ volatile char vd_fill1; /* filler */ volatile u_short vd_tt_res; /* TT-resultion mode */ volatile u_char vd_ste_hscroll; /* MEGA STe hor bitwise scroll */ volatile u_char vd_fill2[411]; volatile u_short vd_tt_rgb[256]; /* RGB for simultaneous TT colors */ }; #define vd_ramh vdb[ 1] /* base address Video RAM, high byte */ #define vd_ramm vdb[ 3] /* base address Video RAM, mid byte */ #define vd_raml vdb[13] /* base address Video RAM, low byte */ #define vd_ptrh vdb[ 5] /* scan address Video RAM, high byte */ #define vd_ptrm vdb[ 7] /* scan address Video RAM, mid byte */ #define vd_ptrl vdb[ 9] /* scan address Video RAM, low byte */ #define vd_sync vdb[10] /* synchronization mode */ /* bits in vd_sync: */ #define SYNC_EXT 0x01 /* extern sync */ #define SYNC_50 0x02 /* 50 Hertz (used for color) */ /* bits in vd_st_rgb[]: */ #define RGB_B 0x0007 #define RGB_G 0x0070 #define RGB_R 0x0700 /* some values for vd_st_rgb[]: */ #define RGB_BLACK 0x0000 #define RGB_RED 0x0700 #define RGB_GREEN 0x0070 #define RGB_BLUE 0x0007 #define RGB_WHITE 0x0777 #define RGB_MAGENTA 0x0707 #define RGB_CYAN 0x0077 #define RGB_YELLOW 0x0770 #define RGB_LGREY 0x0555 #define RGB_DGREY 0x0222 /* values for vd_st_res: */ #define RES_LOW 0x00 /* 320x200, 16 colors */ #define RES_MID 0x01 /* 640x200, 4 colors */ #define RES_HIGH 0x02 /* 640x400, monochrome */ /* masks for vd_tt_res: */ #define RES_STLOW 0x0000 /* 320x200, 16 colors */ #define RES_STMID 0x0100 /* 640x200, 4 colors */ #define RES_STHIGH 0x0200 /* 640x400, monochrome */ #define RES_TTMID 0x0400 /* 640x480, 16 colors */ #define RES_TTHIGH 0x0600 /* 1280x960, monochrome */ #define RES_TTLOW 0x0700 /* 320x480, 256 colors */ #define TT_PALLET 0x000f /* Pallette number */ #define TT_HYMONO 0x8000 /* Hyper mono mode */ #define TT_SHOLD 0x1000 /* Sample/hold mode */ /* * Yahama YM-2149 Programmable Sound Generator */ #define SOUND ((struct sound *)AD_SOUND) struct sound { char sdb[4]; /* use only the even bytes */ }; #define sd_selr sdb[0] /* select register */ #define sd_rdat sdb[0] /* read register data */ #define sd_wdat sdb[2] /* write register data */ /* * Accessing the YM-2149 registers is indirect through ST-specific * circuitry by writing the register number into sd_selr. */ #define YM_PA0 0 /* Period Channel A, bits 0-7 */ #define YM_PA1 1 /* Period Channel A, bits 8-11 */ #define YM_PB0 2 /* Period Channel B, bits 0-7 */ #define YM_PB1 3 /* Period Channel B, bits 8-11 */ #define YM_PC0 4 /* Period Channel C, bits 0-7 */ #define YM_PC1 5 /* Period Channel C, bits 8-11 */ #define YM_PNG 6 /* Period Noise Generator, bits 0-4 */ #define YM_MFR 7 /* Multi Function Register */ #define YM_VA 8 /* Volume Channel A */ #define YM_VB 9 /* Volume Channel B */ #define YM_VC 10 /* Volume Channel C */ #define YM_PE0 11 /* Period Envelope, bits 0-7 */ #define YM_PE1 12 /* Period Envelope, bits 8-15 */ #define YM_WFE 13 /* Wave Form Envelope */ #define YM_IOA 14 /* I/O port A */ #define YM_IOB 15 /* I/O port B */ /* bits in MFR: */ #define SA_OFF 0x01 /* Sound Channel A off */ #define SB_OFF 0x02 /* Sound Channel B off */ #define SC_OFF 0x04 /* Sound Channel C off */ #define NA_OFF 0x08 /* Noise Channel A off */ #define NB_OFF 0x10 /* Noise Channel B off */ #define NC_OFF 0x20 /* Noise Channel C off */ #define PA_OUT 0x40 /* Port A for Output */ #define PB_OUT 0x80 /* Port B for Output */ /* bits in Vx: */ #define VOLUME 0x0F /* 16 steps */ #define ENVELOP 0x10 /* volume steered by envelope */ /* bits in WFE: */ #define WF_HOLD 0x01 /* hold after one period */ #define WF_ALTERNAT 0x02 /* up and down (no saw teeth) */ #define WF_ATTACK 0x04 /* start up */ #define WF_CONTINUE 0x08 /* multiple periods */ /* names for bits in Port A (ST specific): */ #define PA_SIDEB 0x01 /* select floppy head - if double sided */ #define PA_FLOP0 0x02 /* Drive Select Floppy 0 */ #define PA_FLOP1 0x04 /* Drive Select Floppy 1 */ #define PA_SRTS 0x08 /* Serial RTS */ #define PA_SDTR 0x10 /* Serial DTR */ #define PA_PSTROBE 0x20 /* Parallel Strobe */ #define PA_USER 0x40 /* Free Pin on Monitor Connector */ /* 0x80 reserved */ #endif /* _MACHINE_VIDEO_H */