73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/* $NetBSD: md.c,v 1.5 2005/12/11 12:18:34 christos Exp $ */
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/*
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* Copyright (c) 1994 Matthias Pfaller.
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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 Matthias Pfaller.
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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 <machine/stdarg.h>
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#include <sys/param.h>
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#include <lib/libsa/stand.h>
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#include <pc532/stand/common/samachdep.h>
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#ifndef MD_START
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extern u_char stext[];
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#define MD_START ((void *)((((int)stext) & 0xffffff00) - 2800 * 512))
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#endif
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int
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mdopen(struct open_file *f, ...)
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{
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f->f_devdata = MD_START;
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return(0);
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}
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int
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mdclose(struct open_file *f)
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{
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f->f_devdata = NULL;
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return (0);
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}
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int
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mdstrategy(void *ss, int func, daddr_t dblk, u_int size, void *buf,
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u_int *rsize)
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{
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memcpy(buf, (char *)ss + (dblk << DEV_BSHIFT), size);
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*rsize = size;
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return(0);
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}
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