pci_machdep.h revision 1.6 
1/*	$NetBSD: pci_machdep.h,v 1.6 2001/08/26 02:47:34 matt 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#ifndef _MACHINE_PCI_MACHDEP_H_
33#define _MACHINE_PCI_MACHDEP_H_
34
35/*
36 * Machine-specific definitions for PCI autoconfiguration.
37 */
38
39/*
40 * Forward declarations.
41 */
42struct pci_attach_args;
43
44/*
45 * be-specific PCI structure and type definitions.
46 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
47 *
48 * Configuration tag; created from a {bus,device,function} triplet by
49 * pci_make_tag(), and passed to pci_conf_read() and pci_conf_write().
50 * We could instead always pass the {bus,device,function} triplet to
51 * the read and write routines, but this would cause extra overhead.
52 */
53
54/*
55 * Types provided to machine-independent PCI code
56 */
57typedef void *pci_chipset_tag_t;
58typedef int pcitag_t;
59typedef int pci_intr_handle_t;
60
61#ifdef _KERNEL
62extern struct powerpc_bus_dma_tag pci_bus_dma_tag;
63
64/*
65 * Functions provided to machine-independent PCI code.
66 */
67void		pci_attach_hook(struct device *, struct device *,
68		    struct pcibus_attach_args *);
69int		pci_bus_maxdevs(pci_chipset_tag_t, int);
70pcitag_t	pci_make_tag(pci_chipset_tag_t, int, int, int);
71void		pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
72		    int *, int *, int *);
73pcireg_t	pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
74void		pci_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t);
75int		pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
76const char	*pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
77const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
78void		*pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
79		    int, int (*)(void *), void *);
80void		pci_intr_disestablish(pci_chipset_tag_t, void *);
81void		pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev,
82		    int func, int swiz, int *iline);
83
84#endif /* _KERNEL */
85
86#endif /* _MACHINE_PCI_MACHDEP_H_ */
87