sys/dev/bwn/if_bwn_pci.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2015-2016 Landon Fuller <landonf@FreeBSD.org>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, 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
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 #include "opt_bwn.h"
  33 #include "opt_wlan.h"
  34
  35 #include <sys/param.h>
  36 #include <sys/kernel.h>
  37 #include <sys/bus.h>
  38 #include <sys/module.h>
  39
  40 #include <dev/pci/pcireg.h>
  41 #include <dev/pci/pcivar.h>
  42
  43 #include <dev/bhnd/bhndb/bhndb_pcivar.h>
  44 #include <dev/bhnd/bhndb/bhndb_hwdata.h>
  45 #include <dev/bhnd/bhndb/bhndb_pci_hwdata.h>
  46
  47 #include <dev/bhnd/bhnd_ids.h>
  48
  49 #include "bhndb_bus_if.h"
  50
  51 #include "if_bwn_pcivar.h"
  52
  53 /* If non-zero, enable attachment of BWN_QUIRK_UNTESTED devices */
  54 static int attach_untested = 0;
  55 TUNABLE_INT("hw.bwn_pci.attach_untested", &attach_untested);
  56
  57 /* SIBA Devices */
  58 static const struct bwn_pci_device siba_devices[] = {
  59         BWN_BCM_DEV(BCM4306_D11A,       "BCM4306 802.11a",
  60             BWN_QUIRK_WLAN_DUALCORE|BWN_QUIRK_SOFTMODEM_UNPOPULATED),
  61         BWN_BCM_DEV(BCM4306_D11G,       "BCM4306 802.11b/g",
  62             BWN_QUIRK_SOFTMODEM_UNPOPULATED),
  63         BWN_BCM_DEV(BCM4306_D11G_ID2,   "BCM4306 802.11b/g",
  64             BWN_QUIRK_SOFTMODEM_UNPOPULATED),
  65         BWN_BCM_DEV(BCM4306_D11DUAL,    "BCM4306 802.11a/b/g",
  66             BWN_QUIRK_SOFTMODEM_UNPOPULATED),
  67         BWN_BCM_DEV(BCM4307,            "BCM4307 802.11b",              0),
  68
  69         BWN_BCM_DEV(BCM4311_D11G,       "BCM4311 802.11b/g",            0),
  70         BWN_BCM_DEV(BCM4311_D11DUAL,    "BCM4311 802.11a/b/g",          0),
  71         BWN_BCM_DEV(BCM4311_D11A,       "BCM4311 802.11a",
  72             BWN_QUIRK_UNTESTED|BWN_QUIRK_WLAN_DUALCORE),
  73
  74         BWN_BCM_DEV(BCM4318_D11G,       "BCM4318 802.11b/g",            0),
  75         BWN_BCM_DEV(BCM4318_D11DUAL,    "BCM4318 802.11a/b/g",          0),
  76         BWN_BCM_DEV(BCM4318_D11A,       "BCM4318 802.11a",
  77             BWN_QUIRK_UNTESTED|BWN_QUIRK_WLAN_DUALCORE),
  78
  79         BWN_BCM_DEV(BCM4321_D11N,       "BCM4321 802.11n Dual-Band",
  80             BWN_QUIRK_USBH_UNPOPULATED),
  81         BWN_BCM_DEV(BCM4321_D11N2G,     "BCM4321 802.11n 2GHz",
  82             BWN_QUIRK_USBH_UNPOPULATED),
  83         BWN_BCM_DEV(BCM4321_D11N5G,     "BCM4321 802.11n 5GHz",
  84             BWN_QUIRK_UNTESTED|BWN_QUIRK_USBH_UNPOPULATED),
  85
  86         BWN_BCM_DEV(BCM4322_D11N,       "BCM4322 802.11n Dual-Band",    0),
  87         BWN_BCM_DEV(BCM4322_D11N2G,     "BCM4322 802.11n 2GHz",
  88             BWN_QUIRK_UNTESTED),
  89         BWN_BCM_DEV(BCM4322_D11N5G,     "BCM4322 802.11n 5GHz",
  90             BWN_QUIRK_UNTESTED),
  91
  92         BWN_BCM_DEV(BCM4328_D11G,       "BCM4328/4312 802.11g",         0),
  93
  94         { 0, 0, NULL, 0 }
  95 };
  96
  97 /** BCMA Devices */
  98 static const struct bwn_pci_device bcma_devices[] = {
  99         BWN_BCM_DEV(BCM4331_D11N,       "BCM4331 802.11n Dual-Band",    0),
 100         BWN_BCM_DEV(BCM4331_D11N2G,     "BCM4331 802.11n 2GHz",         0),
 101         BWN_BCM_DEV(BCM4331_D11N5G,     "BCM4331 802.11n 5GHz",         0),
 102         BWN_BCM_DEV(BCM43224_D11N,      "BCM43224 802.11n Dual-Band",   0),
 103         BWN_BCM_DEV(BCM43224_D11N_ID_VEN1, "BCM43224 802.11n Dual-Band",0),
 104         BWN_BCM_DEV(BCM43225_D11N2G,    "BCM43225 802.11n 2GHz",        0),
 105
 106         { 0, 0, NULL, 0}
 107 };
 108
 109 /** Device configuration table */
 110 static const struct bwn_pci_devcfg bwn_pci_devcfgs[] = {
 111         /* SIBA devices */
 112         {
 113                 .bridge_hwcfg   = &bhndb_pci_siba_generic_hwcfg,
 114                 .bridge_hwtable = bhndb_pci_generic_hw_table,
 115                 .bridge_hwprio  = bhndb_siba_priority_table,
 116                 .devices        = siba_devices
 117         },
 118         /* BCMA devices */
 119         {
 120                 .bridge_hwcfg   = &bhndb_pci_bcma_generic_hwcfg,
 121                 .bridge_hwtable = bhndb_pci_generic_hw_table,
 122                 .bridge_hwprio  = bhndb_bcma_priority_table,
 123                 .devices        = bcma_devices
 124         },
 125         { NULL, NULL, NULL }
 126 };
 127
 128 /** Search the device configuration table for an entry matching @p dev. */
 129 static int
 130 bwn_pci_find_devcfg(device_t dev, const struct bwn_pci_devcfg **cfg,
 131     const struct bwn_pci_device **device)
 132 {
 133         const struct bwn_pci_devcfg     *dvc;
 134         const struct bwn_pci_device     *dv;
 135
 136         for (dvc = bwn_pci_devcfgs; dvc->devices != NULL; dvc++) {
 137                 for (dv = dvc->devices; dv->device != 0; dv++) {
 138                         if (pci_get_vendor(dev) == dv->vendor &&
 139                             pci_get_device(dev) == dv->device)
 140                         {
 141                                 if (cfg != NULL)
 142                                         *cfg = dvc;
 143
 144                                 if (device != NULL)
 145                                         *device = dv;
 146
 147                                 return (0);
 148                         }
 149                 }
 150         }
 151
 152         return (ENOENT);
 153 }
 154
 155 static int
 156 bwn_pci_probe(device_t dev)
 157 {
 158         const struct bwn_pci_device     *ident;
 159
 160         if (bwn_pci_find_devcfg(dev, NULL, &ident))
 161                 return (ENXIO);
 162
 163         /* Skip untested devices */
 164         if (ident->quirks & BWN_QUIRK_UNTESTED && !attach_untested)
 165                 return (ENXIO);
 166
 167         device_set_desc(dev, ident->desc);
 168         return (BUS_PROBE_DEFAULT);
 169 }
 170
 171 static int
 172 bwn_pci_attach(device_t dev)
 173 {
 174         struct bwn_pci_softc            *sc;
 175         const struct bwn_pci_device     *ident;
 176         int                              error;
 177
 178         sc = device_get_softc(dev);
 179         sc->dev = dev;
 180
 181         /* Find our hardware config */
 182         if (bwn_pci_find_devcfg(dev, &sc->devcfg, &ident))
 183                 return (ENXIO);
 184
 185         /* Save quirk flags */
 186         sc->quirks = ident->quirks;
 187
 188         /* Attach bridge device */
 189         if ((error = bhndb_attach_bridge(dev, &sc->bhndb_dev, -1)))
 190                 return (ENXIO);
 191
 192         /* Success */
 193         return (0);
 194 }
 195
 196 static int
 197 bwn_pci_detach(device_t dev)
 198 {
 199         int error;
 200
 201         if ((error = bus_generic_detach(dev)))
 202                 return (error);
 203
 204         return (device_delete_children(dev));
 205 }
 206
 207 static void
 208 bwn_pci_probe_nomatch(device_t dev, device_t child)
 209 {
 210         const char *name;
 211
 212         name = device_get_name(child);
 213         if (name == NULL)
 214                 name = "unknown device";
 215
 216         device_printf(dev, "<%s> (no driver attached)\n", name);
 217 }
 218
 219 static const struct bhndb_hwcfg *
 220 bwn_pci_get_generic_hwcfg(device_t dev, device_t child)
 221 {
 222         struct bwn_pci_softc *sc = device_get_softc(dev);
 223         return (sc->devcfg->bridge_hwcfg);
 224 }
 225
 226 static const struct bhndb_hw *
 227 bwn_pci_get_bhndb_hwtable(device_t dev, device_t child)
 228 {
 229         struct bwn_pci_softc *sc = device_get_softc(dev);
 230         return (sc->devcfg->bridge_hwtable);
 231 }
 232
 233 static const struct bhndb_hw_priority *
 234 bwn_pci_get_bhndb_hwprio(device_t dev, device_t child)
 235 {
 236         struct bwn_pci_softc *sc = device_get_softc(dev);
 237         return (sc->devcfg->bridge_hwprio);
 238 }
 239
 240 static bool
 241 bwn_pci_is_core_disabled(device_t dev, device_t child,
 242     struct bhnd_core_info *core)
 243 {
 244         struct bwn_pci_softc    *sc;
 245
 246         sc = device_get_softc(dev);
 247
 248         switch (bhnd_core_class(core)) {
 249         case BHND_DEVCLASS_WLAN:
 250                 if (core->unit > 0 && !(sc->quirks & BWN_QUIRK_WLAN_DUALCORE))
 251                         return (true);
 252
 253                 return (false);
 254
 255         case BHND_DEVCLASS_ENET:
 256         case BHND_DEVCLASS_ENET_MAC:
 257         case BHND_DEVCLASS_ENET_PHY:
 258                 return ((sc->quirks & BWN_QUIRK_ENET_HW_UNPOPULATED) != 0);
 259
 260         case BHND_DEVCLASS_USB_HOST:
 261                 return ((sc->quirks & BWN_QUIRK_USBH_UNPOPULATED) != 0);
 262
 263         case BHND_DEVCLASS_SOFTMODEM:
 264                 return ((sc->quirks & BWN_QUIRK_SOFTMODEM_UNPOPULATED) != 0);
 265
 266         default:
 267                 return (false);
 268         }
 269 }
 270
 271 static device_method_t bwn_pci_methods[] = {
 272         /* Device interface */
 273         DEVMETHOD(device_probe,                 bwn_pci_probe),
 274         DEVMETHOD(device_attach,                bwn_pci_attach),
 275         DEVMETHOD(device_detach,                bwn_pci_detach),
 276         DEVMETHOD(device_shutdown,              bus_generic_shutdown),
 277         DEVMETHOD(device_suspend,               bus_generic_suspend),
 278         DEVMETHOD(device_resume,                bus_generic_resume),
 279
 280         /* Bus interface */
 281         DEVMETHOD(bus_probe_nomatch,            bwn_pci_probe_nomatch),
 282
 283         /* BHNDB_BUS Interface */
 284         DEVMETHOD(bhndb_bus_get_generic_hwcfg,  bwn_pci_get_generic_hwcfg),
 285         DEVMETHOD(bhndb_bus_get_hardware_table, bwn_pci_get_bhndb_hwtable),
 286         DEVMETHOD(bhndb_bus_get_hardware_prio,  bwn_pci_get_bhndb_hwprio),
 287         DEVMETHOD(bhndb_bus_is_core_disabled,   bwn_pci_is_core_disabled),
 288
 289         DEVMETHOD_END
 290 };
 291
 292 static devclass_t bwn_pci_devclass;
 293
 294 DEFINE_CLASS_0(bwn_pci, bwn_pci_driver, bwn_pci_methods,
 295     sizeof(struct bwn_pci_softc));
 296 DRIVER_MODULE_ORDERED(bwn_pci, pci, bwn_pci_driver, bwn_pci_devclass, NULL,
 297     NULL, SI_ORDER_ANY);
 298 MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, bwn_siba,
 299     siba_devices, nitems(siba_devices) - 1);
 300 MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, bwn_bcma,
 301     bcma_devices, nitems(bcma_devices) - 1);
 302 DRIVER_MODULE(bhndb, bwn_pci, bhndb_pci_driver, bhndb_devclass, NULL, NULL);
 303
 304 MODULE_DEPEND(bwn_pci, bwn, 1, 1, 1);
 305 MODULE_DEPEND(bwn_pci, bhnd, 1, 1, 1);
 306 MODULE_DEPEND(bwn_pci, bhndb, 1, 1, 1);
 307 MODULE_DEPEND(bwn_pci, bhndb_pci, 1, 1, 1);
 308 MODULE_DEPEND(bwn_pci, bcma_bhndb, 1, 1, 1);
 309 MODULE_DEPEND(bwn_pci, siba_bhndb, 1, 1, 1);
 310 MODULE_VERSION(bwn_pci, 1);