65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/* $NetBSD: x68k_init.c,v 1.2 1997/02/04 11:45:03 oki Exp $ */
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/*
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* Copyright (c) 1996 Masaru Oki.
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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 Masaru Oki.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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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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#include <x68k/x68k/iodevice.h>
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#define zschan IODEVbase->io_inscc.zs_chan
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volatile struct IODEVICE *IODEVbase = (volatile struct IODEVICE *) PHYS_IODEV;
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/*
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* disable all interrupt.
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*/
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void
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intr_reset()
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{
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/* I/O Controller */
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ioctlr.intr = 0;
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/* Internal RS-232C port */
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zschan[1].zc_csr = 1;
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asm("nop");
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zschan[1].zc_csr = 0;
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asm("nop");
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/* mouse */
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zschan[0].zc_csr = 1;
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asm("nop");
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zschan[0].zc_csr = 0;
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asm("nop");
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while(!(mfp.tsr & MFP_TSR_BE))
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;
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mfp.udr = 0x41;
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/* MFP (hard coded interrupt vector XXX) */
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mfp.vr = 0x40;
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}
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