1 /*- 2 * Copyright (c) 2015 Landon Fuller <landon@landonf.org> 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 * 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. 15 * 16 * NO WARRANTY 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. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include "opt_bwn.h" 34 #include "opt_wlan.h" 35 36 #include <sys/param.h> 37 #include <sys/kernel.h> 38 #include <sys/bus.h> 39 #include <sys/module.h> 40 41 #include <dev/pci/pcireg.h> 42 #include <dev/pci/pcivar.h> 43 44 #include <dev/bhnd/bhndb/bhndb_pcivar.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 /* If non-zero, probe at a higher priority than the stable if_bwn driver. */ 58 static int prefer_new_driver = 0; 59 TUNABLE_INT("hw.bwn_pci.preferred", &prefer_new_driver); 60 61 /* SIBA Devices */ 62 static const struct bwn_pci_device siba_devices[] = { 63 BWN_BCM_DEV(BCM4301, "BCM4301 802.11b", 64 BWN_QUIRK_ENET_HW_UNPOPULATED), 65 66 BWN_BCM_DEV(BCM4306, "BCM4306 802.11b/g", 0), 67 BWN_BCM_DEV(BCM4306_D11G, "BCM4306 802.11g", 0), 68 BWN_BCM_DEV(BCM4306_D11A, "BCM4306 802.11a", 69 BWN_QUIRK_WLAN_DUALCORE), 70 BWN_BCM_DEV(BCM4306_D11DUAL, "BCM4306 802.11a/b", 71 BWN_QUIRK_WLAN_DUALCORE), 72 BWN_BCM_DEV(BCM4306_D11G_ID2, "BCM4306 802.11g", 0), 73 74 BWN_BCM_DEV(BCM4307, "BCM4307 802.11b", 0), 75 76 BWN_BCM_DEV(BCM4311_D11G, "BCM4311 802.11b/g", 0), 77 BWN_BCM_DEV(BCM4311_D11DUAL, "BCM4311 802.11a/b/g", 0), 78 BWN_BCM_DEV(BCM4311_D11A, "BCM4311 802.11a", 79 BWN_QUIRK_UNTESTED|BWN_QUIRK_WLAN_DUALCORE), 80 81 BWN_BCM_DEV(BCM4318_D11G, "BCM4318 802.11b/g", 0), 82 BWN_BCM_DEV(BCM4318_D11DUAL, "BCM4318 802.11a/b/g", 0), 83 BWN_BCM_DEV(BCM4318_D11A, "BCM4318 802.11a", 84 BWN_QUIRK_UNTESTED|BWN_QUIRK_WLAN_DUALCORE), 85 86 BWN_BCM_DEV(BCM4321_D11N, "BCM4321 802.11n Dual-Band", 0), 87 BWN_BCM_DEV(BCM4321_D11N2G, "BCM4321 802.11n 2GHz", 0), 88 BWN_BCM_DEV(BCM4321_D11N2G, "BCM4321 802.11n 5GHz", 89 BWN_QUIRK_UNTESTED), 90 91 BWN_BCM_DEV(BCM4322_D11N, "BCM4322 802.11n Dual-Band", 0), 92 BWN_BCM_DEV(BCM4322_D11N2G, "BCM4322 802.11n 2GHz", 93 BWN_QUIRK_UNTESTED), 94 BWN_BCM_DEV(BCM4322_D11N5G, "BCM4322 802.11n 5GHz", 95 BWN_QUIRK_UNTESTED), 96 97 BWN_BCM_DEV(BCM4328_D11G, "BCM4328/4312 802.11g", 0), 98 99 { 0, 0, NULL, 0 } 100 }; 101 102 /** BCMA Devices */ 103 static const struct bwn_pci_device bcma_devices[] = { 104 BWN_BCM_DEV(BCM4331_D11N, "BCM4331 802.11n Dual-Band", 0), 105 BWN_BCM_DEV(BCM4331_D11N2G, "BCM4331 802.11n 2GHz", 0), 106 BWN_BCM_DEV(BCM4331_D11N5G, "BCM4331 802.11n 5GHz", 0), 107 BWN_BCM_DEV(BCM43225_D11N2G, "BCM43225 802.11n 2GHz", 0), 108 109 { 0, 0, NULL, 0} 110 }; 111 112 /** Device configuration table */ 113 static const struct bwn_pci_devcfg bwn_pci_devcfgs[] = { 114 /* SIBA devices */ 115 { 116 .bridge_hwcfg = &bhndb_pci_siba_generic_hwcfg, 117 .bridge_hwtable = bhndb_pci_generic_hw_table, 118 .devices = siba_devices 119 }, 120 /* BCMA devices */ 121 { 122 .bridge_hwcfg = &bhndb_pci_bcma_generic_hwcfg, 123 .bridge_hwtable = bhndb_pci_generic_hw_table, 124 .devices = bcma_devices 125 }, 126 { NULL, NULL, NULL } 127 }; 128 129 /** Search the device configuration table for an entry matching @p dev. */ 130 static int 131 bwn_pci_find_devcfg(device_t dev, const struct bwn_pci_devcfg **cfg, 132 const struct bwn_pci_device **device) 133 { 134 const struct bwn_pci_devcfg *dvc; 135 const struct bwn_pci_device *dv; 136 137 for (dvc = bwn_pci_devcfgs; dvc->devices != NULL; dvc++) { 138 for (dv = dvc->devices; dv->device != 0; dv++) { 139 if (pci_get_vendor(dev) == dv->vendor && 140 pci_get_device(dev) == dv->device) 141 { 142 if (cfg != NULL) 143 *cfg = dvc; 144 145 if (device != NULL) 146 *device = dv; 147 148 return (0); 149 } 150 } 151 } 152 153 return (ENOENT); 154 } 155 156 static int 157 bwn_pci_probe(device_t dev) 158 { 159 const struct bwn_pci_device *ident; 160 161 if (bwn_pci_find_devcfg(dev, NULL, &ident)) 162 return (ENXIO); 163 164 /* Skip untested devices */ 165 if (ident->quirks & BWN_QUIRK_UNTESTED && !attach_untested) 166 return (ENXIO); 167 168 device_set_desc(dev, ident->desc); 169 170 /* Until this driver is complete, require explicit opt-in before 171 * superceding if_bwn/siba_bwn. */ 172 if (prefer_new_driver) 173 return (BUS_PROBE_DEFAULT+1); 174 else 175 return (BUS_PROBE_LOW_PRIORITY); 176 177 // return (BUS_PROBE_DEFAULT); 178 } 179 180 static int 181 bwn_pci_attach(device_t dev) 182 { 183 struct bwn_pci_softc *sc; 184 const struct bwn_pci_device *ident; 185 int error; 186 187 sc = device_get_softc(dev); 188 sc->dev = dev; 189 190 /* Find our hardware config */ 191 if (bwn_pci_find_devcfg(dev, &sc->devcfg, &ident)) 192 return (ENXIO); 193 194 /* Save quirk flags */ 195 sc->quirks = ident->quirks; 196 197 /* Attach bridge device */ 198 if ((error = bhndb_attach_bridge(dev, &sc->bhndb_dev, -1))) 199 return (ENXIO); 200 201 /* Success */ 202 return (0); 203 } 204 205 static int 206 bwn_pci_detach(device_t dev) 207 { 208 return (bus_generic_detach(dev)); 209 } 210 211 static void 212 bwn_pci_probe_nomatch(device_t dev, device_t child) 213 { 214 const char *name; 215 216 name = device_get_name(child); 217 if (name == NULL) 218 name = "unknown device"; 219 220 device_printf(dev, "<%s> (no driver attached)\n", name); 221 } 222 223 static const struct bhndb_hwcfg * 224 bwn_pci_get_generic_hwcfg(device_t dev, device_t child) 225 { 226 struct bwn_pci_softc *sc = device_get_softc(dev); 227 return (sc->devcfg->bridge_hwcfg); 228 } 229 230 static const struct bhndb_hw * 231 bwn_pci_get_bhndb_hwtable(device_t dev, device_t child) 232 { 233 struct bwn_pci_softc *sc = device_get_softc(dev); 234 return (sc->devcfg->bridge_hwtable); 235 } 236 237 static bool 238 bwn_pci_is_core_disabled(device_t dev, device_t child, 239 struct bhnd_core_info *core) 240 { 241 struct bwn_pci_softc *sc; 242 243 sc = device_get_softc(dev); 244 245 switch (bhnd_core_class(core)) { 246 case BHND_DEVCLASS_WLAN: 247 if (core->unit > 0 && !(sc->quirks & BWN_QUIRK_WLAN_DUALCORE)) 248 return (true); 249 250 return (false); 251 252 case BHND_DEVCLASS_ENET: 253 case BHND_DEVCLASS_ENET_MAC: 254 case BHND_DEVCLASS_ENET_PHY: 255 return ((sc->quirks & BWN_QUIRK_ENET_HW_UNPOPULATED) != 0); 256 257 default: 258 return (false); 259 } 260 } 261 262 static device_method_t bwn_pci_methods[] = { 263 /* Device interface */ 264 DEVMETHOD(device_probe, bwn_pci_probe), 265 DEVMETHOD(device_attach, bwn_pci_attach), 266 DEVMETHOD(device_detach, bwn_pci_detach), 267 DEVMETHOD(device_shutdown, bus_generic_shutdown), 268 DEVMETHOD(device_suspend, bus_generic_suspend), 269 DEVMETHOD(device_resume, bus_generic_resume), 270 271 /* Bus interface */ 272 DEVMETHOD(bus_probe_nomatch, bwn_pci_probe_nomatch), 273 274 /* BHNDB_BUS Interface */ 275 DEVMETHOD(bhndb_bus_get_generic_hwcfg, bwn_pci_get_generic_hwcfg), 276 DEVMETHOD(bhndb_bus_get_hardware_table, bwn_pci_get_bhndb_hwtable), 277 DEVMETHOD(bhndb_bus_is_core_disabled, bwn_pci_is_core_disabled), 278 279 DEVMETHOD_END 280 }; 281 282 static devclass_t bwn_pci_devclass; 283 284 DEFINE_CLASS_0(bwn_pci, bwn_pci_driver, bwn_pci_methods, sizeof(struct bwn_pci_softc)); 285 DRIVER_MODULE(bwn_pci, pci, bwn_pci_driver, bwn_pci_devclass, NULL, NULL); 286 DRIVER_MODULE(bhndb, bwn_pci, bhndb_pci_driver, bhndb_devclass, NULL, NULL); 287 288 MODULE_DEPEND(bwn_pci, bwn, 1, 1, 1); 289 MODULE_DEPEND(bwn_pci, bhndb, 1, 1, 1); 290 MODULE_DEPEND(bwn_pci, bhndb_pci, 1, 1, 1); 291 MODULE_DEPEND(bwn_pci, bcma_bhndb, 1, 1, 1); 292 MODULE_DEPEND(bwn_pci, siba_bhndb, 1, 1, 1); 293