1/*-
2 * Copyright (c) 1999, 2000 Matthew R. Green
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 * 3. The name of the author may not be used to endorse or promote products
14 *    derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 *	from: NetBSD: ebus.c,v 1.52 2008/05/29 14:51:26 mrg Exp
29 */
30/*-
31 * Copyright (c) 2001, 2003 Thomas Moestl <tmm@FreeBSD.org>
32 * All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 *    notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 *    notice, this list of conditions and the following disclaimer in the
41 *    documentation and/or other materials provided with the distribution.
42 * 3. The name of the author may not be used to endorse or promote products
43 *    derived from this software without specific prior written permission.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
50 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
51 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
52 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
53 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * SUCH DAMAGE.
56 */
57
58#include <sys/cdefs.h>
59__FBSDID("$FreeBSD$");
60
61/*
62 * Helper functions which can be used in both ISA and EBus code.
63 */
64
65#include <sys/param.h>
66#include <sys/systm.h>
67#include <sys/bus.h>
68
69#include <dev/ofw/ofw_bus_subr.h>
70#include <dev/ofw/openfirm.h>
71
72#include <machine/bus.h>
73#include <machine/resource.h>
74
75#include <sparc64/pci/ofw_pci.h>
76#include <sparc64/isa/ofw_isa.h>
77
78#include "pcib_if.h"
79
80int
81ofw_isa_range_restype(struct isa_ranges *range)
82{
83	int ps = ISA_RANGE_PS(range);
84
85	switch (ps) {
86	case OFW_PCI_CS_IO:
87		return (SYS_RES_IOPORT);
88	case OFW_PCI_CS_MEM32:
89		return (SYS_RES_MEMORY);
90	default:
91		panic("ofw_isa_range_restype: illegal space %x", ps);
92	}
93
94}
95
96/* XXX: this only supports PCI as parent bus right now. */
97int
98ofw_isa_range_map(struct isa_ranges *range, int nrange, u_long *start,
99    u_long *end, int *which)
100{
101	struct isa_ranges *r;
102	uint64_t offs, cstart, cend;
103	int i;
104
105	for (i = 0; i < nrange; i++) {
106		r = &range[i];
107		cstart = ISA_RANGE_CHILD(r);
108		cend = cstart + r->size - 1;
109		if (*start < cstart || *start > cend)
110			continue;
111		if (*end < cstart || *end > cend) {
112			panic("ofw_isa_map_iorange: iorange crosses PCI "
113			    "ranges (%#lx not in %#lx - %#lx)", *end, cstart,
114			    cend);
115		}
116		offs = ISA_RANGE_PHYS(r);
117		*start = *start + offs - cstart;
118		*end  = *end + offs - cstart;
119		if (which != NULL)
120			*which = i;
121		return (ofw_isa_range_restype(r));
122	}
123	panic("ofw_isa_map_iorange: could not map range %#lx - %#lx",
124	    *start, *end);
125}
126
127ofw_pci_intr_t
128ofw_isa_route_intr(device_t bridge, phandle_t node, struct ofw_bus_iinfo *ii,
129    ofw_isa_intr_t intr)
130{
131	struct isa_regs reg;
132	device_t pbridge;
133	ofw_isa_intr_t mintr;
134
135	pbridge = device_get_parent(device_get_parent(bridge));
136	/*
137	 * If we get a match from using the map, the resulting INO is
138	 * fully specified, so we may not continue to map.
139	 */
140	if (!ofw_bus_lookup_imap(node, ii, &reg, sizeof(reg),
141	    &intr, sizeof(intr), &mintr, sizeof(mintr), NULL)) {
142		/* Try routing at the parent bridge. */
143		mintr = PCIB_ROUTE_INTERRUPT(pbridge, bridge, intr);
144	}
145	return (mintr);
146}
147