2 * Copyright (c) 2015 Landon Fuller <landon@landonf.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
13 * redistribution must be conditioned upon including a substantially
14 * similar Disclaimer requirement for further binary redistribution.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27 * THE POSSIBILITY OF SUCH DAMAGES.
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
34 #include <sys/kernel.h>
36 #include <sys/module.h>
38 #include <dev/bhnd/bhnd_ids.h>
39 #include <dev/bhnd/bhndb/bhndbvar.h>
40 #include <dev/bhnd/bhndb/bhndb_hwdata.h>
44 #include "bcma_eromreg.h"
45 #include "bcma_eromvar.h"
48 * Supports attachment of bcma(4) bus devices via a bhndb bridge.
52 bcma_bhndb_probe(device_t dev)
54 const struct bhnd_chipid *cid;
57 /* Defer to default probe implementation */
58 if ((error = bcma_probe(dev)) > 0)
62 cid = BHNDB_GET_CHIPID(device_get_parent(dev), dev);
63 if (cid->chip_type != BHND_CHIPTYPE_BCMA)
66 /* Set device description */
67 bhnd_set_default_bus_desc(dev, cid);
73 bcma_bhndb_attach(device_t dev)
75 struct bcma_softc *sc;
76 const struct bhnd_chipid *cid;
77 struct resource *erom_res;
81 sc = device_get_softc(dev);
83 /* Map the EROM resource and enumerate our children. */
84 cid = BHNDB_GET_CHIPID(device_get_parent(dev), dev);
86 erom_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, cid->enum_addr,
87 cid->enum_addr + BCMA_EROM_TABLE_SIZE, BCMA_EROM_TABLE_SIZE,
89 if (erom_res == NULL) {
90 device_printf(dev, "failed to allocate EROM resource\n");
94 error = bcma_add_children(dev, erom_res, BCMA_EROM_TABLE_START);
97 bus_release_resource(dev, SYS_RES_MEMORY, rid, erom_res);
101 /* Initialize full bridge configuration */
102 error = BHNDB_INIT_FULL_CONFIG(device_get_parent(dev), dev,
103 bhndb_bcma_priority_table);
107 /* Ask our parent bridge to find the corresponding bridge core */
108 sc->hostb_dev = BHNDB_FIND_HOSTB_DEVICE(device_get_parent(dev), dev);
110 /* Call our superclass' implementation */
111 return (bcma_attach(dev));
115 bcma_bhndb_suspend_child(device_t dev, device_t child)
117 struct bcma_devinfo *dinfo;
120 if (device_get_parent(child) != dev)
121 BUS_SUSPEND_CHILD(device_get_parent(dev), child);
123 if (device_is_suspended(child))
126 dinfo = device_get_ivars(child);
128 /* Suspend the child */
129 if ((error = bhnd_generic_br_suspend_child(dev, child)))
132 /* Suspend child's agent resource */
133 if (dinfo->res_agent != NULL)
134 BHNDB_SUSPEND_RESOURCE(device_get_parent(dev), dev,
135 SYS_RES_MEMORY, dinfo->res_agent->res);
141 bcma_bhndb_resume_child(device_t dev, device_t child)
143 struct bcma_devinfo *dinfo;
146 if (device_get_parent(child) != dev)
147 BUS_SUSPEND_CHILD(device_get_parent(dev), child);
149 if (!device_is_suspended(child))
152 dinfo = device_get_ivars(child);
154 /* Resume child's agent resource */
155 if (dinfo->res_agent != NULL) {
156 error = BHNDB_RESUME_RESOURCE(device_get_parent(dev), dev,
157 SYS_RES_MEMORY, dinfo->res_agent->res);
162 /* Resume the child */
163 if ((error = bhnd_generic_br_resume_child(dev, child))) {
164 /* On failure, re-suspend the agent resource */
165 if (dinfo->res_agent != NULL) {
166 BHNDB_SUSPEND_RESOURCE(device_get_parent(dev), dev,
167 SYS_RES_MEMORY, dinfo->res_agent->res);
176 static device_method_t bcma_bhndb_methods[] = {
177 /* Device interface */
178 DEVMETHOD(device_probe, bcma_bhndb_probe),
179 DEVMETHOD(device_attach, bcma_bhndb_attach),
182 DEVMETHOD(bus_suspend_child, bcma_bhndb_suspend_child),
183 DEVMETHOD(bus_resume_child, bcma_bhndb_resume_child),
188 DEFINE_CLASS_2(bhnd, bcma_bhndb_driver, bcma_bhndb_methods,
189 sizeof(struct bcma_softc), bhnd_bhndb_driver, bcma_driver);
191 DRIVER_MODULE(bcma_bhndb, bhndb, bcma_bhndb_driver, bhnd_devclass, NULL, NULL);
193 MODULE_VERSION(bcma_bhndb, 1);
194 MODULE_DEPEND(bcma_bhndb, bcma, 1, 1, 1);
195 MODULE_DEPEND(bcma_bhndb, bhnd, 1, 1, 1);
196 MODULE_DEPEND(bcma_bhndb, bhndb, 1, 1, 1);