1/*-
2 * Copyright (c) 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
26#include <sys/cdefs.h>
27__FBSDID("$FreeBSD$");
28
29#include "opt_ofw_pci.h"
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/bus.h>
34#include <sys/rman.h>
35
36#include <dev/ofw/ofw_bus.h>
37#include <dev/ofw/ofw_pci.h>
38#include <dev/ofw/openfirm.h>
39
40#include <machine/bus.h>
41
42#include <dev/pci/pcireg.h>
43#include <dev/pci/pcivar.h>
44#include <dev/pci/pcib_private.h>
45
46#include "pcib_if.h"
47
48#include <sparc64/pci/ofw_pci.h>
49#include <sparc64/pci/ofw_pcib_subr.h>
50
51void
52ofw_pcib_gen_setup(device_t bridge)
53{
54	struct ofw_pcib_gen_softc *sc;
55
56	sc = device_get_softc(bridge);
57	sc->ops_pcib_sc.dev = bridge;
58	sc->ops_node = ofw_bus_get_node(bridge);
59	KASSERT(sc->ops_node != 0,
60	    ("ofw_pcib_gen_setup: no ofw pci parent bus!"));
61
62	ofw_bus_setup_iinfo(sc->ops_node, &sc->ops_iinfo,
63	    sizeof(ofw_pci_intr_t));
64}
65
66int
67ofw_pcib_gen_route_interrupt(device_t bridge, device_t dev, int intpin)
68{
69	struct ofw_pcib_gen_softc *sc;
70	struct ofw_bus_iinfo *ii;
71	struct ofw_pci_register reg;
72	ofw_pci_intr_t pintr, mintr;
73
74	sc = device_get_softc(bridge);
75	ii = &sc->ops_iinfo;
76	if (ii->opi_imapsz > 0) {
77		pintr = intpin;
78		if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), ii, &reg,
79		    sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr),
80		    NULL)) {
81			/*
82			 * If we've found a mapping, return it and don't map
83			 * it again on higher levels - that causes problems
84			 * in some cases, and never seems to be required.
85			 */
86			return (mintr);
87		}
88	} else if (intpin >= 1 && intpin <= 4) {
89		/*
90		 * When an interrupt map is missing, we need to do the
91		 * standard PCI swizzle and continue mapping at the parent.
92		 */
93		return (pcib_route_interrupt(bridge, dev, intpin));
94	}
95	/* Try at the parent. */
96	return (PCIB_ROUTE_INTERRUPT(device_get_parent(device_get_parent(
97	    bridge)), bridge, intpin));
98}
99
100phandle_t
101ofw_pcib_gen_get_node(device_t bridge, device_t dev)
102{
103	struct ofw_pcib_gen_softc *sc;
104
105	sc = device_get_softc(bridge);
106	return (sc->ops_node);
107}
108