42 lines
1.8 KiB
C
42 lines
1.8 KiB
C
/* $NetBSD: mc6845reg.h,v 1.4 2005/12/11 12:21:27 christos Exp $ */
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/*
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* Copyright (c) 1998
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* Matthias Drochner. 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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struct reg_mc6845 { /* indexed via port 0x3d4 (mono 0x3b4) */
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u_int8_t htotal, hdisple, hblanks, hblanke;
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u_int8_t hsyncs, hsynce, vtotal, overfll;
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u_int8_t irowaddr, maxrow, curstart, curend;
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u_int8_t startadrh, startadrl, cursorh, cursorl;
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u_int8_t vsyncs, vsynce, vde, offset;
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u_int8_t uloc, vbstart, vbend, mode;
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u_int8_t splitl;
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};
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#define MC6845_NREGS 25
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#define MC6845_INDEX 0x4
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#define MC6845_DATA 0x5
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