ofw_pci_if.m revision 129051 
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 129051 2004-05-08 13:53:47Z 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_get_node_t ofw_pci_default_get_node;
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 phandle_t
58	ofw_pci_default_get_node(device_t bus, device_t dev)
59	{
60
61		return (0);
62	}
63
64	static void
65	ofw_pci_default_adjust_busrange(device_t dev, u_int busno)
66	{
67
68		return (OFW_PCI_ADJUST_BUSRANGE(device_get_parent(dev), busno));
69	}
70};
71
72# Return whether an interrupt request is pending for the INO intr.
73METHOD int intr_pending {
74	device_t dev;
75	ofw_pci_intr_t intr;
76} DEFAULT ofw_pci_default_intr_pending;
77
78# Get the bustag for the root bus. This is needed for ISA old-stlye
79# in[bwl]()/out[bwl]() support, where no tag retrieved from a resource is
80# passed. The returned tag is used to construct a tag for the whole ISA bus.
81METHOD bus_space_handle_t get_bus_handle {
82	device_t dev;
83	int type;
84	bus_space_handle_t childhdl;
85	bus_space_tag_t *tag;
86} DEFAULT ofw_pci_default_get_bus_handle;
87
88# Get the firmware node for the device dev on the bus. The default method will
89# return 0, which signals that there is no such node.
90# This could be an ivar, but isn't to avoid numbering conflicts with standard
91# pci/pcib ones.
92METHOD phandle_t get_node {
93	device_t bus;
94	device_t dev;
95} DEFAULT ofw_pci_default_get_node;
96
97# Make sure that all PCI bridges up in the hierarchy contain this bus in their
98# subordinate bus range. This is required because we reenumerate all PCI
99# buses.
100METHOD void adjust_busrange {
101	device_t dev;
102	u_int subbus;
103} DEFAULT ofw_pci_default_adjust_busrange;
104