8ae7f8bceb
less. It needs some help to get to be -current. Support for minimal hardware on the SE/30, II, IIx, and IIcx exists.
88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
/*-
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* Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
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* Michael L. Finch, Bradley A. Grantham, and
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* Lawrence A. Kesteloot
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Alice Group.
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* 4. The names of the Alice Group or any of its members may not be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``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 ALICE GROUP 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ident "$Id: via.h,v 1.1.1.1 1993/09/29 06:09:26 briggs Exp $"
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/*
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Prototype VIA control definitions
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06/04/92,22:33:57 BG Let's see what I can do.
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*/
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/* VIA1 data register A */
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#define DA1I_vSCCWrReq 0x80
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#define DA1O_vPage2 0x40
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#define DA1I_CPU_ID1 0x40
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#define DA1O_vHeadSel 0x20
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#define DA1O_vOverlay 0x10
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#define DA1O_vSync 0x08
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#define DA1O_RESERVED2 0x04
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#define DA1O_RESERVED1 0x02
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#define DA1O_RESERVED0 0x01
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/* VIA1 data register B */
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#define DB1I_Par_Err 0x80
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#define DB1O_vSndEnb 0x80
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#define VIA1 0x50000000
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#define VIA2 0x50002000
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#define vBufA 7680
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#define vBufB 0
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#define vDirA 1536
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#define vDirB 1024
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#define vT1C 2048
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#define vT1CH 2560
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#define vT1L 3072
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#define vT1LH 3584
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#define vT2C 4096
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#define vT2CH 4608
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#define vSR 5120
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#define vACR 5632
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#define vPCR 6144
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#define vIFR 6656 /* +3 */
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#define vIER 7168 /* +0x13 */
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#define vDirA_ADBState 0x30
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#define via_reg(v, r) (*((unsigned char *)(v + r)))
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/* e.g. via_reg(VIA1, vBufB) |= */
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long VIA_set_handler(long vianum, long bitnum, long (*handle)());
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long VIA_unset_handler(long vianum, long bitnum, long (*handle)());
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void VIA_initialize(long vianum);
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unsigned char VIA_get_SR(long vianum);
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void VIA_set_SR(long vianum, unsigned char data);
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