ofw_pci_if.m revision 115417 
1# Copyright (c) 2001 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 115417 2003-05-30 20:48:05Z tmm $
25
26#include <sys/bus.h>
27#include <machine/bus.h>
28
29#include <dev/ofw/openfirm.h>
30
31INTERFACE sparcbus;
32
33HEADER {
34	/* Bus tag types for the get_bustag method */
35	enum sbbt_id {
36		SBBT_IO,
37		SBBT_MEM,
38	};
39};
40
41CODE {
42	static int
43	sparcbus_default_intr_pending(device_t dev, int intr)
44	{
45
46		return (SPARCBUS_INTR_PENDING(device_get_parent(dev), intr));
47	}
48
49	static u_int32_t
50	sparcbus_default_guess_ino(device_t dev, phandle_t node, u_int slot,
51	    u_int pin)
52	{
53
54		return (SPARCBUS_GUESS_INO(device_get_parent(dev), node, slot,
55		    pin));
56	}
57
58	static bus_space_handle_t
59	sparcbus_default_get_bus_handle(device_t dev, enum sbbt_id id,
60	    bus_space_handle_t childhdl, bus_space_tag_t *tag)
61	{
62
63		return (SPARCBUS_GET_BUS_HANDLE(device_get_parent(dev), id,
64		    childhdl, tag));
65	}
66};
67
68# Return whether an interrupt request is pending for the INO intr.
69METHOD int intr_pending {
70	device_t dev;
71	int intr;
72} DEFAULT sparcbus_default_intr_pending;
73
74# Let the bus driver guess the INO of the device at the given slot and intpin
75# on the bus described by the node if it could not be determined from the
76# firmware properties. Returns 255 if no INO could be found (mapping will
77# continue at the parent), or the desired INO.
78METHOD u_int32_t guess_ino {
79	device_t dev;
80	phandle_t node;
81	u_int slot;
82	u_int pin;
83} DEFAULT sparcbus_default_guess_ino;
84
85# Get the bustag for the root bus. This is needed for ISA old-stlye
86# in[bwl]()/out[bwl]() support, where no tag retrieved from a resource is
87# passed. The returned tag is used to construct a tag for the whole ISA bus.
88METHOD bus_space_handle_t get_bus_handle {
89	device_t dev;
90	enum sbbt_id id;
91	bus_space_handle_t childhdl;
92	bus_space_tag_t *tag;
93} DEFAULT sparcbus_default_get_bus_handle;
94