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
|
/*-
* Copyright (c) 2015 Landon Fuller <landon@landonf.org>
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <dev/bhnd/bhnd_ids.h>
#include <dev/bhnd/bhndb/bhndbvar.h>
#include <dev/bhnd/bhndb/bhndb_hwdata.h>
#include "bcmavar.h"
#include "bcma_eromreg.h"
#include "bcma_eromvar.h"
/*
* Supports attachment of bcma(4) bus devices via a bhndb bridge.
*/
static int
bcma_bhndb_probe(device_t dev)
{
const struct bhnd_chipid *cid;
/* Check bus type */
cid = BHNDB_GET_CHIPID(device_get_parent(dev), dev);
if (cid->chip_type != BHND_CHIPTYPE_BCMA)
return (ENXIO);
/* Delegate to default probe implementation */
return (bcma_probe(dev));
}
static int
bcma_bhndb_attach(device_t dev)
{
struct bcma_softc *sc;
const struct bhnd_chipid *cid;
struct resource *erom_res;
int error;
int rid;
sc = device_get_softc(dev);
/* Map the EROM resource and enumerate our children. */
cid = BHNDB_GET_CHIPID(device_get_parent(dev), dev);
rid = 0;
erom_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, cid->enum_addr,
cid->enum_addr + BCMA_EROM_TABLE_SIZE, BCMA_EROM_TABLE_SIZE,
RF_ACTIVE);
if (erom_res == NULL) {
device_printf(dev, "failed to allocate EROM resource\n");
return (ENXIO);
}
error = bcma_add_children(dev, erom_res, BCMA_EROM_TABLE_START);
/* Clean up */
bus_release_resource(dev, SYS_RES_MEMORY, rid, erom_res);
if (error)
return (error);
/* Initialize full bridge configuration */
error = BHNDB_INIT_FULL_CONFIG(device_get_parent(dev), dev,
bhndb_bcma_priority_table);
if (error)
return (error);
/* Ask our parent bridge to find the corresponding bridge core */
sc->hostb_dev = BHNDB_FIND_HOSTB_DEVICE(device_get_parent(dev), dev);
/* Call our superclass' implementation */
return (bcma_attach(dev));
}
static int
bcma_bhndb_suspend_child(device_t dev, device_t child)
{
struct bcma_devinfo *dinfo;
int error;
if (device_get_parent(child) != dev)
BUS_SUSPEND_CHILD(device_get_parent(dev), child);
if (device_is_suspended(child))
return (EBUSY);
dinfo = device_get_ivars(child);
/* Suspend the child */
if ((error = bhnd_generic_br_suspend_child(dev, child)))
return (error);
/* Suspend child's agent resource */
if (dinfo->res_agent != NULL)
BHNDB_SUSPEND_RESOURCE(device_get_parent(dev), dev,
SYS_RES_MEMORY, dinfo->res_agent->res);
return (0);
}
static int
bcma_bhndb_resume_child(device_t dev, device_t child)
{
struct bcma_devinfo *dinfo;
int error;
if (device_get_parent(child) != dev)
BUS_SUSPEND_CHILD(device_get_parent(dev), child);
if (!device_is_suspended(child))
return (EBUSY);
dinfo = device_get_ivars(child);
/* Resume child's agent resource */
if (dinfo->res_agent != NULL) {
error = BHNDB_RESUME_RESOURCE(device_get_parent(dev), dev,
SYS_RES_MEMORY, dinfo->res_agent->res);
if (error)
return (error);
}
/* Resume the child */
if ((error = bhnd_generic_br_resume_child(dev, child))) {
/* On failure, re-suspend the agent resource */
if (dinfo->res_agent != NULL) {
BHNDB_SUSPEND_RESOURCE(device_get_parent(dev), dev,
SYS_RES_MEMORY, dinfo->res_agent->res);
}
return (error);
}
return (0);
}
static device_method_t bcma_bhndb_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, bcma_bhndb_probe),
DEVMETHOD(device_attach, bcma_bhndb_attach),
/* Bus interface */
DEVMETHOD(bus_suspend_child, bcma_bhndb_suspend_child),
DEVMETHOD(bus_resume_child, bcma_bhndb_resume_child),
DEVMETHOD_END
};
DEFINE_CLASS_2(bhnd, bcma_bhndb_driver, bcma_bhndb_methods,
sizeof(struct bcma_softc), bhnd_bhndb_driver, bcma_driver);
DRIVER_MODULE(bcma_bhndb, bhndb, bcma_bhndb_driver, bhnd_devclass, NULL, NULL);
MODULE_VERSION(bcma_bhndb, 1);
MODULE_DEPEND(bcma_bhndb, bcma, 1, 1, 1);
MODULE_DEPEND(bcma_bhndb, bhnd, 1, 1, 1);
MODULE_DEPEND(bcma_bhndb, bhndb, 1, 1, 1);
|
