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59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
/* $NetBSD: grfabs_et.h,v 1.4 2011/10/04 04:50:20 chs Exp $ */
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/*
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* Copyright (c) 1996 Leo Weppelman.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Saved register-state of the ET4000
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*/
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typedef struct {
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u_char misc_output;
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u_char crt[25]; /* Std. VGA crt registers */
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u_char attr[25]; /* Std. VGA attr. registers */
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u_char grf[9]; /* Std. VGA grf. registers */
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u_char seq[5]; /* Std. VGA seq. registers */
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/* ET4000 extensions */
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u_char ext_start; /* Extra Crt registers */
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u_char compat_6845;
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u_char overfl_high;
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u_char hor_overfl;
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u_char state_ctl; /* Extra Seq. registers */
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u_char aux_mode;
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u_char seg_sel; /* Extra general register */
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} et_sv_reg_t;
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typedef struct {
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et_sv_reg_t sv_regs; /* saved card regs */
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int fb_size; /* # of shorts in sv_fb */
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u_short sv_fb[1]; /* saved frame buffer */
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/* actually longer... */
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} save_area_t;
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void et_hwrest(et_sv_reg_t *);
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void et_hwsave(et_sv_reg_t *);
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int et_probe_card(void);
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void et_probe_video(MODES *);
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