ofw_pci_if.m revision 133589 
1# Copyright (c) 2001, 2003 by Thomas Moestl <tmm@FreeBSD.org>
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions
6# are met:
7# 1. Redistributions of source code must retain the above copyright
8#    notice, this list of conditions and the following disclaimer.
9# 2. Redistributions in binary form must reproduce the above copyright
10#    notice, this list of conditions and the following disclaimer in the
11#    documentation and/or other materials provided with the distribution.
12#
13# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16# IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
17# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
19# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
20# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
21# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
22# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23#
24# $FreeBSD: head/sys/sparc64/pci/ofw_pci_if.m 133589 2004-08-12 17:41:33Z marius $
25
26#include <sys/bus.h>
27#include <machine/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_get_bus_handle_t ofw_pci_default_get_bus_handle;
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		return (OFW_PCI_INTR_PENDING(device_get_parent(dev), intr));
45	}
46
47	static bus_space_handle_t
48	ofw_pci_default_get_bus_handle(device_t dev, int type,
49	    bus_space_handle_t childhdl, bus_space_tag_t *tag)
50	{
51
52		return (OFW_PCI_GET_BUS_HANDLE(device_get_parent(dev), type,
53		    childhdl, tag));
54	}
55
56	static void
57	ofw_pci_default_adjust_busrange(device_t dev, u_int busno)
58	{
59
60		return (OFW_PCI_ADJUST_BUSRANGE(device_get_parent(dev), busno));
61	}
62};
63
64# Return whether an interrupt request is pending for the INO intr.
65METHOD int intr_pending {
66	device_t dev;
67	ofw_pci_intr_t intr;
68} DEFAULT ofw_pci_default_intr_pending;
69
70# Get the bustag for the root bus. This is needed for ISA old-stlye
71# in[bwl]()/out[bwl]() support, where no tag retrieved from a resource is
72# passed. The returned tag is used to construct a tag for the whole ISA bus.
73METHOD bus_space_handle_t get_bus_handle {
74	device_t dev;
75	int type;
76	bus_space_handle_t childhdl;
77	bus_space_tag_t *tag;
78} DEFAULT ofw_pci_default_get_bus_handle;
79
80# Make sure that all PCI bridges up in the hierarchy contain this bus in their
81# subordinate bus range. This is required because we reenumerate all PCI
82# buses.
83METHOD void adjust_busrange {
84	device_t dev;
85	u_int subbus;
86} DEFAULT ofw_pci_default_adjust_busrange;
87