1 /* $NetBSD: grfabs_et.h,v 1.1 1996/10/11 21:02:48 leo 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Leo Weppelman. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Saved register-state of the ET4000 35 */ 36 typedef struct { 37 u_char misc_output; 38 u_char crt[25]; /* Std. VGA crt registers */ 39 u_char attr[21]; /* Std. VGA attr. registers */ 40 u_char grf[9]; /* Std. VGA grf. registers */ 41 u_char seq[5]; /* Std. VGA seq. registers */ 42 43 /* ET4000 extensions */ 44 u_char ext_start; /* Extra Crt registers */ 45 u_char compat_6845; 46 u_char overfl_high; 47 u_char hor_overfl; 48 u_char state_ctl; /* Extra Seq. registers */ 49 u_char aux_mode; 50 u_char seg_sel; /* Extra general register */ 51 } et_sv_reg_t; 52 53 typedef struct { 54 et_sv_reg_t sv_regs; /* saved card regs */ 55 int fb_size; /* # of shorts in sv_fb */ 56 u_short sv_fb[1]; /* saved frame buffer */ 57 /* actually longer... */ 58 } save_area_t; 59 60 void et_hwrest __P((et_sv_reg_t *)); 61 void et_hwsave __P((et_sv_reg_t *)); 62 int et_probe_card __P((void)); 63 void et_probe_video __P((MODES *)); 64