1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*-
* Copyright (c) 2016 Svatopluk Kraus
* Copyright (c) 2016 Michal Meloun
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/rman.h>
#include <sys/systm.h>
#include <machine/fdt.h>
#include <machine/intr.h>
#include <machine/resource.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include "pic_if.h"
static struct ofw_compat_data compat_data[] = {
{"ti,omap4-wugen-mpu", 1},
{NULL, 0}
};
struct omap4_wugen_sc {
device_t sc_dev;
struct resource *sc_mem_res;
device_t sc_parent;
};
static int
omap4_wugen_register(device_t dev, struct intr_irqsrc *isrc,
boolean_t *is_percpu)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
return (PIC_REGISTER(sc->sc_parent, isrc, is_percpu));
}
static int
omap4_wugen_unregister(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
return (PIC_UNREGISTER(sc->sc_parent, isrc));
}
static void
omap4_wugen_enable_source(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_ENABLE_SOURCE(sc->sc_parent, isrc);
}
static void
omap4_wugen_disable_source(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_DISABLE_SOURCE(sc->sc_parent, isrc);
}
static void
omap4_wugen_enable_intr(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_ENABLE_INTR(sc->sc_parent, isrc);
}
static void
omap4_wugen_pre_ithread(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_PRE_ITHREAD(sc->sc_parent, isrc);
}
static void
omap4_wugen_post_ithread(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_POST_ITHREAD(sc->sc_parent, isrc);
}
static void
omap4_wugen_post_filter(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_POST_FILTER(sc->sc_parent, isrc);
}
#ifdef SMP
static int
omap4_wugen_bind(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
return (PIC_BIND(sc->sc_parent, isrc));
}
#endif
static int
omap4_wugen_probe(device_t dev)
{
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
return (ENXIO);
return (BUS_PROBE_DEFAULT);
}
static int
omap4_wugen_detach(device_t dev)
{
struct omap4_wugen_sc *sc;
sc = device_get_softc(dev);
if (sc->sc_mem_res != NULL) {
bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->sc_mem_res);
sc->sc_mem_res = NULL;
}
return (0);
}
static int
omap4_wugen_attach(device_t dev)
{
struct omap4_wugen_sc *sc;
phandle_t node;
phandle_t parent_xref;
int rid, rv;
sc = device_get_softc(dev);
sc->sc_dev = dev;
node = ofw_bus_get_node(dev);
rv = OF_getencprop(node, "interrupt-parent", &parent_xref,
sizeof(parent_xref));
if (rv <= 0) {
device_printf(dev, "can't read parent node property\n");
goto fail;
}
sc->sc_parent = OF_device_from_xref(parent_xref);
if (sc->sc_parent == NULL) {
device_printf(dev, "can't find parent controller\n");
goto fail;
}
rid = 0;
sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (sc->sc_mem_res == NULL) {
device_printf(dev, "can't allocate resources\n");
return (ENXIO);
}
if (intr_pic_register(dev, OF_xref_from_node(node)) != 0) {
device_printf(dev, "can't register PIC\n");
goto fail;
}
return (0);
fail:
omap4_wugen_detach(dev);
return (ENXIO);
}
static device_method_t omap4_wugen_methods[] = {
DEVMETHOD(device_probe, omap4_wugen_probe),
DEVMETHOD(device_attach, omap4_wugen_attach),
DEVMETHOD(device_detach, omap4_wugen_detach),
/* Interrupt controller interface */
DEVMETHOD(pic_register, omap4_wugen_register),
DEVMETHOD(pic_unregister, omap4_wugen_unregister),
DEVMETHOD(pic_enable_source, omap4_wugen_enable_source),
DEVMETHOD(pic_disable_source, omap4_wugen_disable_source),
DEVMETHOD(pic_enable_intr, omap4_wugen_enable_intr),
DEVMETHOD(pic_pre_ithread, omap4_wugen_pre_ithread),
DEVMETHOD(pic_post_ithread, omap4_wugen_post_ithread),
DEVMETHOD(pic_post_filter, omap4_wugen_post_filter),
#ifdef SMP
DEVMETHOD(pic_bind, omap4_wugen_bind),
#endif
DEVMETHOD_END
};
devclass_t omap4_wugen_devclass;
DEFINE_CLASS_0(omap4_wugen, omap4_wugen_driver, omap4_wugen_methods,
sizeof(struct omap4_wugen_sc));
EARLY_DRIVER_MODULE(omap4_wugen, simplebus, omap4_wugen_driver,
omap4_wugen_devclass, NULL, NULL,
BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE + 1);
|
