ofw_pci_if.m revision 139825 
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 139825 2005-01-07 02:29:27Z imp $
26
27#include <sys/bus.h>
28#include <machine/bus.h>
29
30#include <dev/ofw/openfirm.h>
31
32#include <sparc64/pci/ofw_pci.h>
33
34INTERFACE ofw_pci;
35
36CODE {
37	static ofw_pci_intr_pending_t ofw_pci_default_intr_pending;
38	static ofw_pci_get_bus_handle_t ofw_pci_default_get_bus_handle;
39	static ofw_pci_adjust_busrange_t ofw_pci_default_adjust_busrange;
40
41	static int
42	ofw_pci_default_intr_pending(device_t dev, ofw_pci_intr_t intr)
43	{
44
45		return (OFW_PCI_INTR_PENDING(device_get_parent(dev), intr));
46	}
47
48	static bus_space_handle_t
49	ofw_pci_default_get_bus_handle(device_t dev, int type,
50	    bus_space_handle_t childhdl, bus_space_tag_t *tag)
51	{
52
53		return (OFW_PCI_GET_BUS_HANDLE(device_get_parent(dev), type,
54		    childhdl, tag));
55	}
56
57	static void
58	ofw_pci_default_adjust_busrange(device_t dev, u_int busno)
59	{
60
61		return (OFW_PCI_ADJUST_BUSRANGE(device_get_parent(dev), busno));
62	}
63};
64
65# Return whether an interrupt request is pending for the INO intr.
66METHOD int intr_pending {
67	device_t dev;
68	ofw_pci_intr_t intr;
69} DEFAULT ofw_pci_default_intr_pending;
70
71# Get the bustag for the root bus. This is needed for ISA old-stlye
72# in[bwl]()/out[bwl]() support, where no tag retrieved from a resource is
73# passed. The returned tag is used to construct a tag for the whole ISA bus.
74METHOD bus_space_handle_t get_bus_handle {
75	device_t dev;
76	int type;
77	bus_space_handle_t childhdl;
78	bus_space_tag_t *tag;
79} DEFAULT ofw_pci_default_get_bus_handle;
80
81# Make sure that all PCI bridges up in the hierarchy contain this bus in their
82# subordinate bus range. This is required because we reenumerate all PCI
83# buses.
84METHOD void adjust_busrange {
85	device_t dev;
86	u_int subbus;
87} DEFAULT ofw_pci_default_adjust_busrange;
88