1/*- 2 * Copyright (c) 2002-2007 Sam Leffler, Errno Consulting 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/* 34 * PCI/Cardbus front-end for the Broadcom Wireless LAN controller driver. 35 */ 36 37#include "opt_wlan.h" 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/module.h> 42#include <sys/kernel.h> 43#include <sys/lock.h> 44#include <sys/mutex.h> 45#include <sys/errno.h> 46 47#include <machine/bus.h> 48#include <machine/resource.h> 49#include <sys/bus.h> 50#include <sys/rman.h> 51 52#include <sys/socket.h> 53 54#include <net/if.h> 55#include <net/if_media.h> 56#include <net/if_arp.h> 57 58#include <net80211/ieee80211_var.h> 59#include <net80211/ieee80211_radiotap.h> 60#include <net80211/ieee80211_amrr.h> 61 62#include <dev/pci/pcivar.h> 63#include <dev/pci/pcireg.h> 64 65#include <dev/bwi/if_bwivar.h> 66#include <dev/bwi/if_bwireg.h> 67#include <dev/bwi/bitops.h> 68 69/* 70 * PCI glue. 71 */ 72 73struct bwi_pci_softc { 74 struct bwi_softc sc_sc; 75}; 76 77#define BS_BAR 0x10 78#define PCIR_RETRY_TIMEOUT 0x41 79 80static const struct bwi_dev { 81 uint16_t vid; 82 uint16_t did; 83 const char *desc; 84} bwi_devices[] = { 85 { PCI_VENDOR_BROADCOM, 0x4301,"Broadcom BCM4301 802.11b Wireless Lan" }, 86 { PCI_VENDOR_BROADCOM, 0x4307,"Broadcom BCM4307 802.11b Wireless Lan" }, 87 { PCI_VENDOR_BROADCOM, 0x4311,"Broadcom BCM4311 802.11b/g Wireless Lan" }, 88 { PCI_VENDOR_BROADCOM, 0x4312,"Broadcom BCM4312 802.11a/b/g Wireless Lan" }, 89 { PCI_VENDOR_BROADCOM, 0x4313,"Broadcom BCM4312 802.11a Wireless Lan" }, 90 { PCI_VENDOR_BROADCOM, 0x4320,"Broadcom BCM4306 802.11b/g Wireless Lan"}, 91 { PCI_VENDOR_BROADCOM, 0x4321,"Broadcom BCM4306 802.11a Wireless Lan"}, 92 { PCI_VENDOR_BROADCOM, 0x4325,"Broadcom BCM4306 802.11b/g Wireless Lan"}, 93 { PCI_VENDOR_BROADCOM, 0x4324,"Broadcom BCM4309 802.11a/b/g Wireless Lan" }, 94 { PCI_VENDOR_BROADCOM, 0x4318,"Broadcom BCM4318 802.11b/g Wireless Lan" }, 95 { PCI_VENDOR_BROADCOM, 0x4319,"Broadcom BCM4318 802.11a/b/g Wireless Lan" }, 96 { PCI_VENDOR_BROADCOM, 0x431a,"Broadcom BCM4318 802.11a Wireless Lan" }, 97 { 0, 0, NULL } 98}; 99 100static int 101bwi_pci_probe(device_t dev) 102{ 103 const struct bwi_dev *b; 104 uint16_t did, vid; 105 106 did = pci_get_device(dev); 107 vid = pci_get_vendor(dev); 108 109 for (b = bwi_devices; b->desc != NULL; ++b) { 110 if (b->did == did && b->vid == vid) { 111 device_set_desc(dev, b->desc); 112 return BUS_PROBE_DEFAULT; 113 } 114 } 115 return ENXIO; 116} 117 118static int 119bwi_pci_attach(device_t dev) 120{ 121 struct bwi_pci_softc *psc = device_get_softc(dev); 122 struct bwi_softc *sc = &psc->sc_sc; 123 int error = ENXIO; 124 125 sc->sc_dev = dev; 126 127 /* 128 * Enable bus mastering. 129 */ 130 pci_enable_busmaster(dev); 131 132 /* 133 * Setup memory-mapping of PCI registers. 134 */ 135 sc->sc_mem_rid = BWI_PCIR_BAR; 136 sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 137 &sc->sc_mem_rid, RF_ACTIVE); 138 if (sc->sc_mem_res == NULL) { 139 device_printf(dev, "cannot map register space\n"); 140 goto bad; 141 } 142 sc->sc_mem_bt = rman_get_bustag(sc->sc_mem_res); 143 sc->sc_mem_bh = rman_get_bushandle(sc->sc_mem_res); 144 /* 145 * Mark device invalid so any interrupts (shared or otherwise) 146 * that arrive before the card is setup are discarded. 147 */ 148 sc->sc_invalid = 1; 149 150 /* 151 * Arrange interrupt line. 152 */ 153 sc->sc_irq_rid = 0; 154 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 155 &sc->sc_irq_rid, 156 RF_SHAREABLE|RF_ACTIVE); 157 if (sc->sc_irq_res == NULL) { 158 device_printf(dev, "could not map interrupt\n"); 159 goto bad1; 160 } 161 if (bus_setup_intr(dev, sc->sc_irq_res, 162 INTR_TYPE_NET | INTR_MPSAFE, 163 NULL, bwi_intr, sc, &sc->sc_irq_handle)) { 164 device_printf(dev, "could not establish interrupt\n"); 165 goto bad2; 166 } 167 168 /* Get more PCI information */ 169 sc->sc_pci_did = pci_get_device(dev); 170 sc->sc_pci_revid = pci_get_revid(dev); 171 sc->sc_pci_subvid = pci_get_subvendor(dev); 172 sc->sc_pci_subdid = pci_get_subdevice(dev); 173 174 error = bwi_attach(sc); 175 if (error == 0) /* success */ 176 return 0; 177 178 bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_irq_handle); 179bad2: 180 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res); 181bad1: 182 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, sc->sc_mem_res); 183bad: 184 return (error); 185} 186 187static int 188bwi_pci_detach(device_t dev) 189{ 190 struct bwi_pci_softc *psc = device_get_softc(dev); 191 struct bwi_softc *sc = &psc->sc_sc; 192 193 /* check if device was removed */ 194 sc->sc_invalid = !bus_child_present(dev); 195 196 bwi_detach(sc); 197 198 bus_generic_detach(dev); 199 bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_irq_handle); 200 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res); 201 202 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, sc->sc_mem_res); 203 204 return (0); 205} 206 207static int 208bwi_pci_shutdown(device_t dev) 209{ 210 struct bwi_pci_softc *psc = device_get_softc(dev); 211 212 bwi_shutdown(&psc->sc_sc); 213 return (0); 214} 215 216static int 217bwi_pci_suspend(device_t dev) 218{ 219 struct bwi_pci_softc *psc = device_get_softc(dev); 220 221 bwi_suspend(&psc->sc_sc); 222 223 return (0); 224} 225 226static int 227bwi_pci_resume(device_t dev) 228{ 229 struct bwi_pci_softc *psc = device_get_softc(dev); 230 231 bwi_resume(&psc->sc_sc); 232 233 return (0); 234} 235 236static device_method_t bwi_pci_methods[] = { 237 /* Device interface */ 238 DEVMETHOD(device_probe, bwi_pci_probe), 239 DEVMETHOD(device_attach, bwi_pci_attach), 240 DEVMETHOD(device_detach, bwi_pci_detach), 241 DEVMETHOD(device_shutdown, bwi_pci_shutdown), 242 DEVMETHOD(device_suspend, bwi_pci_suspend), 243 DEVMETHOD(device_resume, bwi_pci_resume), 244 245 { 0,0 } 246}; 247static driver_t bwi_driver = { 248 "bwi", 249 bwi_pci_methods, 250 sizeof (struct bwi_pci_softc) 251}; 252static devclass_t bwi_devclass; 253DRIVER_MODULE(bwi, pci, bwi_driver, bwi_devclass, 0, 0); 254MODULE_DEPEND(bwi, wlan, 1, 1, 1); /* 802.11 media layer */ 255MODULE_DEPEND(bwi, firmware, 1, 1, 1); /* firmware support */ 256MODULE_DEPEND(bwi, wlan_amrr, 1, 1, 1); 257