pci_machdep.h revision 1.4 
1/*	$NetBSD: pci_machdep.h,v 1.4 2000/12/28 22:59:10 sommerfeld 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 * Forward declarations.
39 */
40struct pci_attach_args;
41
42/*
43 * be-specific PCI structure and type definitions.
44 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
45 *
46 * Configuration tag; created from a {bus,device,function} triplet by
47 * pci_make_tag(), and passed to pci_conf_read() and pci_conf_write().
48 * We could instead always pass the {bus,device,function} triplet to
49 * the read and write routines, but this would cause extra overhead.
50 */
51
52/*
53 * Types provided to machine-independent PCI code
54 */
55typedef void *pci_chipset_tag_t;
56typedef int pcitag_t;
57typedef int pci_intr_handle_t;
58
59extern struct prep_bus_dma_tag pci_bus_dma_tag;
60
61/*
62 * Functions provided to machine-independent PCI code.
63 */
64void		pci_attach_hook(struct device *, struct device *,
65		    struct pcibus_attach_args *);
66int		pci_bus_maxdevs(pci_chipset_tag_t, int);
67pcitag_t	pci_make_tag(pci_chipset_tag_t, int, int, int);
68void		pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
69		    int *, int *, int *);
70pcireg_t	pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
71void		pci_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t);
72int		pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
73const char	*pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
74const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
75void		*pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
76		    int, int (*)(void *), void *);
77void		pci_intr_disestablish(pci_chipset_tag_t, void *);
78