FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/vgareg.h

     /* $OpenBSD: vgareg.h,v 1.5 2009/02/01 14:37:22 miod Exp $ */
     /* $NetBSD: vgareg.h,v 1.2 1998/05/28 16:48:41 drochner Exp $ */
     
     /*
      * Copyright (c) 1998
      *      Matthias Drochner.  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.
     *
     * 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.
     *
     */
    
    struct reg_vgaattr { /* indexed via port 0x3c0 */
            u_int8_t palette[16];
            u_int8_t mode, overscan, colplen, horpixpan;
            u_int8_t colreset, misc;
    } __packed;
    #define VGA_ATC_INDEX 0
    #define VGA_ATC_DATAW 0
    #define VGA_ATC_DATAR 1
    
    struct reg_vgats { /* indexed via port 0x3c4 */
            u_int8_t syncreset, mode, wrplmask, fontsel, memmode;
    } __packed;
    #define VGA_TS_INDEX 4
    #define VGA_TS_DATA 5
    
    struct reg_vgagdc { /* indexed via port 0x3ce */
            u_int8_t setres, ensetres, colorcomp, rotfunc;
            u_int8_t rdplanesel, mode, misc, colorcare;
            u_int8_t bitmask;
    } __packed;
    #define VGA_GDC_INDEX 0xe
    #define VGA_GDC_DATA 0xf
    
    #define VGA_DAC_MASK    0x06    /* pixel write mask */
    #define VGA_DAC_READ    0x07    /* palette read address */
    #define VGA_DAC_WRITE   0x08    /* palette write address */
    #define VGA_DAC_DATA    0x09    /* palette data register */

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