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 <sys/param.h> 34 #include <sys/kernel.h> 35 #include <sys/bus.h> 36 #include <sys/module.h> 37 38 #include <dev/pci/pcireg.h> 39 #include <dev/pci/pcivar.h> 40 41 #include <dev/bhnd/bhndb/bhndb_pcivar.h> 42 #include <dev/bhnd/bhndb/bhndb_pci_hwdata.h> 43 44 #include <dev/bhnd/bhnd_ids.h> 45 46 #include "bhndb_bus_if.h" 47 48 #include "if_bwn_pcivar.h" 49 50 /* If non-zero, enable attachment of BWN_QUIRK_UNTESTED devices */ 51 static int attach_untested = 0; 52 TUNABLE_INT("hw.bwn_pci.attach_untested", &attach_untested); 53 54 /* If non-zero, probe at a higher priority than the stable if_bwn driver. */ 55 static int prefer_new_driver = 0; 56 TUNABLE_INT("hw.bwn_pci.preferred", &prefer_new_driver); 57 58 /* SIBA Devices */ 59 static const struct bwn_pci_device siba_devices[] = { 60 BWN_BCM_DEV(BCM4301, "BCM4301 802.11b", 61 BWN_QUIRK_ENET_HW_UNPOPULATED), 62 63 BWN_BCM_DEV(BCM4306, "BCM4306 802.11b/g", 0), 64 BWN_BCM_DEV(BCM4306_D11G, "BCM4306 802.11g", 0), 65 BWN_BCM_DEV(BCM4306_D11A, "BCM4306 802.11a", 66 BWN_QUIRK_WLAN_DUALCORE), 67 BWN_BCM_DEV(BCM4306_D11DUAL, "BCM4306 802.11a/b", 68 BWN_QUIRK_WLAN_DUALCORE), 69 BWN_BCM_DEV(BCM4306_D11G_ID2, "BCM4306 802.11g", 0), 70 71 BWN_BCM_DEV(BCM4307, "BCM4307 802.11b", 0), 72 73 BWN_BCM_DEV(BCM4311_D11G, "BCM4311 802.11b/g", 0), 74 BWN_BCM_DEV(BCM4311_D11DUAL, "BCM4311 802.11a/b/g", 0), 75 BWN_BCM_DEV(BCM4311_D11A, "BCM4311 802.11a", 76 BWN_QUIRK_UNTESTED|BWN_QUIRK_WLAN_DUALCORE), 77 78 BWN_BCM_DEV(BCM4318_D11G, "BCM4318 802.11b/g", 0), 79 BWN_BCM_DEV(BCM4318_D11DUAL, "BCM4318 802.11a/b/g", 0), 80 BWN_BCM_DEV(BCM4318_D11A, "BCM4318 802.11a", 81 BWN_QUIRK_UNTESTED|BWN_QUIRK_WLAN_DUALCORE), 82 83 BWN_BCM_DEV(BCM4321_D11N, "BCM4321 802.11n Dual-Band", 0), 84 BWN_BCM_DEV(BCM4321_D11N2G, "BCM4321 802.11n 2GHz", 0), 85 BWN_BCM_DEV(BCM4321_D11N2G, "BCM4321 802.11n 5GHz", 86 BWN_QUIRK_UNTESTED), 87 88 BWN_BCM_DEV(BCM4322_D11N, "BCM4322 802.11n Dual-Band", 0), 89 BWN_BCM_DEV(BCM4322_D11N2G, "BCM4322 802.11n 2GHz", 90 BWN_QUIRK_UNTESTED), 91 BWN_BCM_DEV(BCM4322_D11N5G, "BCM4322 802.11n 5GHz", 92 BWN_QUIRK_UNTESTED), 93 94 BWN_BCM_DEV(BCM4328_D11G, "BCM4328/4312 802.11g", 0), 95 96 { 0, 0, NULL, 0 } 97 }; 98 99 /** BCMA Devices */ 100 static const struct bwn_pci_device bcma_devices[] = { 101 BWN_BCM_DEV(BCM4331_D11N, "BCM4331 802.11n Dual-Band", 0), 102 BWN_BCM_DEV(BCM4331_D11N2G, "BCM4331 802.11n 2GHz", 0), 103 BWN_BCM_DEV(BCM4331_D11N5G, "BCM4331 802.11n 5GHz", 0), 104 105 { 0, 0, NULL, 0} 106 }; 107 108 /** Device configuration table */ 109 static const struct bwn_pci_devcfg bwn_pci_devcfgs[] = { 110 /* SIBA devices */ 111 { 112 .bridge_hwcfg = &bhndb_pci_siba_generic_hwcfg, 113 .bridge_hwtable = bhndb_pci_generic_hw_table, 114 .devices = siba_devices 115 }, 116 /* BCMA devices */ 117 { 118 .bridge_hwcfg = &bhndb_pci_bcma_generic_hwcfg, 119 .bridge_hwtable = bhndb_pci_generic_hw_table, 120 .devices = bcma_devices 121 }, 122 { NULL, NULL, NULL } 123 }; 124 125 /** Search the device configuration table for an entry matching @p dev. */ 126 static int 127 bwn_pci_find_devcfg(device_t dev, const struct bwn_pci_devcfg **cfg, 128 const struct bwn_pci_device **device) 129 { 130 const struct bwn_pci_devcfg *dvc; 131 const struct bwn_pci_device *dv; 132 133 for (dvc = bwn_pci_devcfgs; dvc->devices != NULL; dvc++) { 134 for (dv = dvc->devices; dv->device != 0; dv++) { 135 if (pci_get_vendor(dev) == dv->vendor && 136 pci_get_device(dev) == dv->device) 137 { 138 if (cfg != NULL) 139 *cfg = dvc; 140 141 if (device != NULL) 142 *device = dv; 143 144 return (0); 145 } 146 } 147 } 148 149 return (ENOENT); 150 } 151 152 static int 153 bwn_pci_probe(device_t dev) 154 { 155 const struct bwn_pci_device *ident; 156 157 if (bwn_pci_find_devcfg(dev, NULL, &ident)) 158 return (ENXIO); 159 160 /* Skip untested devices */ 161 if (ident->quirks & BWN_QUIRK_UNTESTED && !attach_untested) 162 return (ENXIO); 163 164 device_set_desc(dev, ident->desc); 165 166 /* Until this driver is complete, require explicit opt-in before 167 * superceding if_bwn/siba_bwn. */ 168 if (prefer_new_driver) 169 return (BUS_PROBE_DEFAULT+1); 170 else 171 return (BUS_PROBE_LOW_PRIORITY); 172 173 // return (BUS_PROBE_DEFAULT); 174 } 175 176 static int 177 bwn_pci_attach(device_t dev) 178 { 179 struct bwn_pci_softc *sc; 180 const struct bwn_pci_device *ident; 181 int error; 182 183 sc = device_get_softc(dev); 184 sc->dev = dev; 185 186 /* Find our hardware config */ 187 if (bwn_pci_find_devcfg(dev, &sc->devcfg, &ident)) 188 return (ENXIO); 189 190 /* Save quirk flags */ 191 sc->quirks = ident->quirks; 192 193 /* Attach bridge device */ 194 if ((error = bhndb_attach_bridge(dev, &sc->bhndb_dev, -1))) 195 return (ENXIO); 196 197 /* Success */ 198 return (0); 199 } 200 201 static int 202 bwn_pci_detach(device_t dev) 203 { 204 return (bus_generic_detach(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 bool 234 bwn_pci_is_core_disabled(device_t dev, device_t child, 235 struct bhnd_core_info *core) 236 { 237 struct bwn_pci_softc *sc; 238 239 sc = device_get_softc(dev); 240 241 switch (bhnd_core_class(core)) { 242 case BHND_DEVCLASS_WLAN: 243 if (core->unit > 0 && !(sc->quirks & BWN_QUIRK_WLAN_DUALCORE)) 244 return (true); 245 246 return (false); 247 248 case BHND_DEVCLASS_ENET: 249 case BHND_DEVCLASS_ENET_MAC: 250 case BHND_DEVCLASS_ENET_PHY: 251 return ((sc->quirks & BWN_QUIRK_ENET_HW_UNPOPULATED) != 0); 252 253 default: 254 return (false); 255 } 256 } 257 258 static device_method_t bwn_pci_methods[] = { 259 /* Device interface */ 260 DEVMETHOD(device_probe, bwn_pci_probe), 261 DEVMETHOD(device_attach, bwn_pci_attach), 262 DEVMETHOD(device_detach, bwn_pci_detach), 263 DEVMETHOD(device_shutdown, bus_generic_shutdown), 264 DEVMETHOD(device_suspend, bus_generic_suspend), 265 DEVMETHOD(device_resume, bus_generic_resume), 266 267 /* Bus interface */ 268 DEVMETHOD(bus_probe_nomatch, bwn_pci_probe_nomatch), 269 270 /* BHNDB_BUS Interface */ 271 DEVMETHOD(bhndb_bus_get_generic_hwcfg, bwn_pci_get_generic_hwcfg), 272 DEVMETHOD(bhndb_bus_get_hardware_table, bwn_pci_get_bhndb_hwtable), 273 DEVMETHOD(bhndb_bus_is_core_disabled, bwn_pci_is_core_disabled), 274 275 DEVMETHOD_END 276 }; 277 278 static devclass_t bwn_pci_devclass; 279 280 DEFINE_CLASS_0(bwn_pci, bwn_pci_driver, bwn_pci_methods, sizeof(struct bwn_pci_softc)); 281 DRIVER_MODULE(bwn_pci, pci, bwn_pci_driver, bwn_pci_devclass, NULL, NULL); 282 DRIVER_MODULE(bhndb, bwn_pci, bhndb_pci_driver, bhndb_devclass, NULL, NULL); 283 284 MODULE_DEPEND(bwn_pci, bwn, 1, 1, 1); 285 MODULE_DEPEND(bwn_pci, bhndb, 1, 1, 1); 286 MODULE_DEPEND(bwn_pci, bhndb_pci, 1, 1, 1); 287 MODULE_DEPEND(bwn_pci, bcma_bhndb, 1, 1, 1); 288 MODULE_DEPEND(bwn_pci, siba_bhndb, 1, 1, 1); 289