| 1 | /* $NetBSD: mc6845reg.h,v 1.4 2005/12/11 12:21:27 christos Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1998 |
| 5 | * Matthias Drochner. 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 | struct reg_mc6845 { /* indexed via port 0x3d4 (mono 0x3b4) */ |
| 30 | u_int8_t htotal, hdisple, hblanks, hblanke; |
| 31 | u_int8_t hsyncs, hsynce, vtotal, overfll; |
| 32 | u_int8_t irowaddr, maxrow, curstart, curend; |
| 33 | u_int8_t startadrh, startadrl, cursorh, cursorl; |
| 34 | u_int8_t vsyncs, vsynce, vde, offset; |
| 35 | u_int8_t uloc, vbstart, vbend, mode; |
| 36 | u_int8_t splitl; |
| 37 | }; |
| 38 | |
| 39 | #define MC6845_NREGS 25 |
| 40 | #define MC6845_INDEX 0x4 |
| 41 | #define MC6845_DATA 0x5 |
| 42 | |