88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
/*-
|
|
* Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
|
|
* Michael L. Finch, Bradley A. Grantham, and
|
|
* Lawrence A. Kesteloot
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the Alice Group.
|
|
* 4. The names of the Alice Group or any of its members may not be used
|
|
* to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
#ident "$Id: via.h,v 1.1.1.1 1993/09/29 06:09:26 briggs Exp $"
|
|
|
|
/*
|
|
Prototype VIA control definitions
|
|
|
|
06/04/92,22:33:57 BG Let's see what I can do.
|
|
*/
|
|
|
|
/* VIA1 data register A */
|
|
#define DA1I_vSCCWrReq 0x80
|
|
#define DA1O_vPage2 0x40
|
|
#define DA1I_CPU_ID1 0x40
|
|
#define DA1O_vHeadSel 0x20
|
|
#define DA1O_vOverlay 0x10
|
|
#define DA1O_vSync 0x08
|
|
#define DA1O_RESERVED2 0x04
|
|
#define DA1O_RESERVED1 0x02
|
|
#define DA1O_RESERVED0 0x01
|
|
|
|
|
|
/* VIA1 data register B */
|
|
#define DB1I_Par_Err 0x80
|
|
#define DB1O_vSndEnb 0x80
|
|
|
|
|
|
#define VIA1 0x50000000
|
|
#define VIA2 0x50002000
|
|
|
|
#define vBufA 7680
|
|
#define vBufB 0
|
|
#define vDirA 1536
|
|
#define vDirB 1024
|
|
#define vT1C 2048
|
|
#define vT1CH 2560
|
|
#define vT1L 3072
|
|
#define vT1LH 3584
|
|
#define vT2C 4096
|
|
#define vT2CH 4608
|
|
#define vSR 5120
|
|
#define vACR 5632
|
|
#define vPCR 6144
|
|
#define vIFR 6656 /* +3 */
|
|
#define vIER 7168 /* +0x13 */
|
|
|
|
#define vDirA_ADBState 0x30
|
|
|
|
#define via_reg(v, r) (*((unsigned char *)(v + r)))
|
|
/* e.g. via_reg(VIA1, vBufB) |= */
|
|
|
|
long VIA_set_handler(long vianum, long bitnum, long (*handle)());
|
|
long VIA_unset_handler(long vianum, long bitnum, long (*handle)());
|
|
void VIA_initialize(long vianum);
|
|
unsigned char VIA_get_SR(long vianum);
|
|
void VIA_set_SR(long vianum, unsigned char data);
|