ofw_pci_if.m revision 170930 
1#-
2# Copyright (c) 2001, 2003 by Thomas Moestl <tmm@FreeBSD.org>
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8# 1. Redistributions of source code must retain the above copyright
9#    notice, this list of conditions and the following disclaimer.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17# IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
18# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
23# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24#
25# $FreeBSD: head/sys/sparc64/pci/ofw_pci_if.m 170930 2007-06-18 21:49:42Z marius $
26
27#include <sys/bus.h>
28
29#include <dev/ofw/openfirm.h>
30
31#include <sparc64/pci/ofw_pci.h>
32
33INTERFACE ofw_pci;
34
35CODE {
36	static ofw_pci_intr_pending_t ofw_pci_default_intr_pending;
37	static ofw_pci_alloc_busno_t ofw_pci_default_alloc_busno;
38	static ofw_pci_adjust_busrange_t ofw_pci_default_adjust_busrange;
39
40	static int
41	ofw_pci_default_intr_pending(device_t dev, ofw_pci_intr_t intr)
42	{
43
44		if (device_get_parent(dev) != NULL)
45			return (OFW_PCI_INTR_PENDING(device_get_parent(dev),
46			    intr));
47		return (0);
48	}
49
50	static int
51	ofw_pci_default_alloc_busno(device_t dev)
52	{
53
54		if (device_get_parent(dev) != NULL)
55			return (OFW_PCI_ALLOC_BUSNO(device_get_parent(dev)));
56		return (-1);
57	}
58
59	static void
60	ofw_pci_default_adjust_busrange(device_t dev, u_int busno)
61	{
62
63		if (device_get_parent(dev) != NULL)
64			return (OFW_PCI_ADJUST_BUSRANGE(device_get_parent(dev),
65			    busno));
66	}
67};
68
69# Return whether an interrupt request is pending for the INO intr.
70METHOD int intr_pending {
71	device_t dev;
72	ofw_pci_intr_t intr;
73} DEFAULT ofw_pci_default_intr_pending;
74
75# Allocate a bus number for reenumerating a PCI bus. A return value of -1
76# means that reenumeration is generally not supported, otherwise all PCI
77# busses must be reenumerated using bus numbers obtained via this method.
78METHOD int alloc_busno {
79	device_t dev;
80} DEFAULT ofw_pci_default_alloc_busno;
81
82# Make sure that all PCI bridges up in the hierarchy contain this bus in
83# their subordinate bus range. This is required when reenumerating the PCI
84# buses.
85METHOD void adjust_busrange {
86	device_t dev;
87	u_int subbus;
88} DEFAULT ofw_pci_default_adjust_busrange;
89