NetBSD/sys/arch/atari/dev/grfabs_et.h

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/* $NetBSD: grfabs_et.h,v 1.1 1996/10/11 21:02:48 leo Exp $ */
/*
* Copyright (c) 1996 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.
*/
/*
* Saved register-state of the ET4000
*/
typedef struct {
u_char misc_output;
u_char crt[25]; /* Std. VGA crt registers */
u_char attr[21]; /* Std. VGA attr. registers */
u_char grf[9]; /* Std. VGA grf. registers */
u_char seq[5]; /* Std. VGA seq. registers */
/* ET4000 extensions */
u_char ext_start; /* Extra Crt registers */
u_char compat_6845;
u_char overfl_high;
u_char hor_overfl;
u_char state_ctl; /* Extra Seq. registers */
u_char aux_mode;
u_char seg_sel; /* Extra general register */
} et_sv_reg_t;
typedef struct {
et_sv_reg_t sv_regs; /* saved card regs */
int fb_size; /* # of shorts in sv_fb */
u_short sv_fb[1]; /* saved frame buffer */
/* actually longer... */
} save_area_t;
void et_hwrest __P((et_sv_reg_t *));
void et_hwsave __P((et_sv_reg_t *));
int et_probe_card __P((void));
void et_probe_video __P((MODES *));