1/*	$NetBSD: grfabs_et.h,v 1.3 2009/10/20 19:10:10 snj 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 */
31typedef struct {
32	u_char	misc_output;
33	u_char	crt[25];	/* Std. VGA crt registers	*/
34	u_char	attr[25];	/* 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
48typedef 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
55void	et_hwrest(et_sv_reg_t *);
56void	et_hwsave(et_sv_reg_t *);
57int	et_probe_card(void);
58void	et_probe_video(MODES *);
59