107 lines
2.8 KiB
C
107 lines
2.8 KiB
C
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/* $NetBSD: biospci.c,v 1.1.1.1 1997/03/14 02:40:32 perry Exp $ */
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/*
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* Copyright (c) 1996
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* Matthias Drochner. 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 for the NetBSD Project
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* by Matthias Drochner.
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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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*/
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/* basic PCI functions for libsa
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needs lowlevel parts from bios_pci.S
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*/
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#include <lib/libsa/stand.h>
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#include "pcivar.h"
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extern int pcibios_present __P((int*));
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extern int pcibios_finddev __P((int, int, int, unsigned int*));
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extern int pcibios_cfgread __P((unsigned int, int, int*));
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extern int pcibios_cfgwrite __P((unsigned int, int, int));
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#define PCISIG ('P' | ('C' << 8) | ('I' << 16) | (' ' << 24))
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int pcicheck()
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{
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int ret, sig;
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ret = pcibios_present(&sig);
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if((ret & 0xff00) || (sig != PCISIG))
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return(-1);
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return(0);
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}
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int pcifinddev(vid, did, handle)
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int vid, did;
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pcihdl_t *handle;
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{
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int ret;
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*handle = 0;
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ret = pcibios_finddev(vid, did, 0, handle);
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if(ret)
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return(-1);
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return(0);
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}
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int pcicfgread(handle, off, val)
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pcihdl_t *handle;
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int off;
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int *val;
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{
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int ret;
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ret = pcibios_cfgread(*handle, off, val);
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if(ret)
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return(-1);
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return(0);
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}
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int pcicfgwrite(handle, off, val)
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pcihdl_t *handle;
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int off;
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int val;
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{
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int ret;
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ret = pcibios_cfgwrite(*handle, off, val);
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if(ret)
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return(-1);
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return(0);
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}
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