pci_machdep.h revision 1.6 
1/*	$NetBSD: pci_machdep.h,v 1.6 2000/06/04 19:14:36 cgd Exp $	*/
2
3/*
4 * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
5 * Copyright (c) 1994 Charles M. Hannum.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Charles M. Hannum.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * Machine-specific definitions for PCI autoconfiguration.
35 */
36
37/*
38 * be-specific PCI structure and type definitions.
39 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
40 *
41 * Configuration tag; created from a {bus,device,function} triplet by
42 * pci_make_tag(), and passed to pci_conf_read() and pci_conf_write().
43 * We could instead always pass the {bus,device,function} triplet to
44 * the read and write routines, but this would cause extra overhead.
45 */
46
47/*
48 * Types provided to machine-independent PCI code
49 */
50typedef void *pci_chipset_tag_t;
51typedef int pcitag_t;
52typedef int pci_intr_handle_t;
53
54/*
55 * Functions provided to machine-independent PCI code.
56 */
57void		pci_attach_hook(struct device *, struct device *,
58		    struct pcibus_attach_args *);
59int		pci_bus_maxdevs(pci_chipset_tag_t, int);
60pcitag_t	pci_make_tag(pci_chipset_tag_t, int, int, int);
61void		pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
62		    int *, int *, int *);
63pcireg_t	pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
64void		pci_conf_write(pci_chipset_tag_t, pcitag_t, int,
65		    pcireg_t);
66int		pci_intr_map(pci_chipset_tag_t, pcitag_t, int, int,
67		    pci_intr_handle_t *);
68const char	*pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
69const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
70void		*pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
71		    int, int (*)(void *), void *);
72void		pci_intr_disestablish(pci_chipset_tag_t, void *);
73