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: releng/10.0/sys/sparc64/pci/ofw_pcib_subr.c 225931 2011-10-02 23:22:38Z marius $");
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
51 void
52 ofw_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
66 int
67 ofw_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 uint8_t maskbuf[sizeof(reg) + sizeof(pintr)];
74
75 sc = device_get_softc(bridge);
76 ii = &sc->ops_iinfo;
77 if (ii->opi_imapsz > 0) {
78 pintr = intpin;
79 if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), ii, ®,
80 sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr),
81 NULL, maskbuf)) {
82 /*
83 * If we've found a mapping, return it and don't map
84 * it again on higher levels - that causes problems
85 * in some cases, and never seems to be required.
86 */
87 return (mintr);
88 }
89 } else if (intpin >= 1 && intpin <= 4) {
90 /*
91 * When an interrupt map is missing, we need to do the
92 * standard PCI swizzle and continue mapping at the parent.
93 */
94 return (pcib_route_interrupt(bridge, dev, intpin));
95 }
96 /* Try at the parent. */
97 return (PCIB_ROUTE_INTERRUPT(device_get_parent(device_get_parent(
98 bridge)), bridge, intpin));
99 }
100
101 phandle_t
102 ofw_pcib_gen_get_node(device_t bridge, device_t dev)
103 {
104 struct ofw_pcib_gen_softc *sc;
105
106 sc = device_get_softc(bridge);
107 return (sc->ops_node);
108 }
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