sys/arch/atari/dev/grfabs_et.h

   1 /*      $NetBSD: grfabs_et.h,v 1.2 2009/03/14 14:45:56 dsl Exp $        */
   2
   3 /*
   4  * Copyright (c) 1996 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 /*
  29  * Saved register-state of the ET4000
  30  */
  31 typedef struct {
  32         u_char  misc_output;
  33         u_char  crt[25];        /* Std. VGA crt registers       */
  34         u_char  attr[21];       /* Std. VGA attr. registers     */
  35         u_char  grf[9];         /* Std. VGA grf. registers      */
  36         u_char  seq[5];         /* Std. VGA seq. registers      */
  37
  38         /* ET4000 extensions */
  39         u_char  ext_start;      /* Extra Crt registers          */
  40         u_char  compat_6845;
  41         u_char  overfl_high;
  42         u_char  hor_overfl;
  43         u_char  state_ctl;      /* Extra Seq. registers         */
  44         u_char  aux_mode;
  45         u_char  seg_sel;        /* Extra general register       */
  46 } et_sv_reg_t;
  47
  48 typedef struct {
  49         et_sv_reg_t     sv_regs;        /* saved card regs      */
  50         int             fb_size;        /* # of shorts in sv_fb */
  51         u_short         sv_fb[1];       /* saved frame buffer   */
  52         /* actually longer... */
  53 } save_area_t;
  54
  55 void    et_hwrest(et_sv_reg_t *);
  56 void    et_hwsave(et_sv_reg_t *);
  57 int     et_probe_card(void);
  58 void    et_probe_video(MODES *);