1 /*- 2 * Copyright (c) 1997, 1998, 1999 3 * Bill Paul <wpaul@ctr.columbia.edu>. 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 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 * 32 * $FreeBSD: head/sys/dev/wi/if_wi_pci.c 181209 2008-08-02 20:45:28Z imp $ 33 * $DragonFly$ 34 */ 35 36 /* 37 * Lucent WaveLAN/IEEE 802.11 PCMCIA driver for FreeBSD. 38 * 39 * Written by Bill Paul <wpaul@ctr.columbia.edu> 40 * Electrical Engineering Department 41 * Columbia University, New York City 42 */ 43 44 #include <sys/param.h> 45 #include <sys/kernel.h> 46 #include <sys/socket.h> 47 #include <sys/systm.h> 48 #include <sys/module.h> 49 #include <sys/bus.h> 50 #include <sys/rman.h> 51 52 #include <bus/pci/pcireg.h> 53 #include <bus/pci/pcivar.h> 54 55 #include <net/if.h> 56 #include <net/if_arp.h> 57 #include <net/ethernet.h> 58 #include <net/if_media.h> 59 #include <net/if_types.h> 60 61 #include <netproto/802_11/ieee80211_var.h> 62 #include <netproto/802_11/ieee80211_radiotap.h> 63 64 #include <dev/netif/wi/if_wavelan_ieee.h> 65 #include <dev/netif/wi/if_wireg.h> 66 #include <dev/netif/wi/if_wivar.h> 67 68 static int wi_pci_probe(device_t); 69 static int wi_pci_attach(device_t); 70 static int wi_pci_suspend(device_t); 71 static int wi_pci_resume(device_t); 72 73 static device_method_t wi_pci_methods[] = { 74 /* Device interface */ 75 DEVMETHOD(device_probe, wi_pci_probe), 76 DEVMETHOD(device_attach, wi_pci_attach), 77 DEVMETHOD(device_detach, wi_detach), 78 DEVMETHOD(device_shutdown, wi_shutdown), 79 DEVMETHOD(device_suspend, wi_pci_suspend), 80 DEVMETHOD(device_resume, wi_pci_resume), 81 82 { 0, 0 } 83 }; 84 85 static driver_t wi_pci_driver = { 86 "wi", 87 wi_pci_methods, 88 sizeof(struct wi_softc) 89 }; 90 91 static struct { 92 unsigned int vendor,device; 93 int bus_type; 94 char *desc; 95 } pci_ids[] = { 96 /* Sorted by description */ 97 {0x10b7, 0x7770, WI_BUS_PCI_PLX, "3Com Airconnect"}, 98 {0x16ab, 0x1101, WI_BUS_PCI_PLX, "GLPRISM2 WaveLAN"}, 99 {0x1260, 0x3872, WI_BUS_PCI_NATIVE, "Intersil Prism3"}, 100 {0x1260, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"}, 101 {0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"}, 102 {0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"}, 103 {0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"}, 104 {0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"}, 105 {0x10b5, 0x9050, WI_BUS_PCI_PLX, "SMC 2602W"}, 106 {0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"}, 107 {0x4033, 0x7001, WI_BUS_PCI_PLX, "Addtron AWA-100 PCI"}, 108 {0, 0, 0, NULL} 109 }; 110 111 DRIVER_MODULE(wi, pci, wi_pci_driver, wi_devclass, 0, 0); 112 MODULE_DEPEND(wi, pci, 1, 1, 1); 113 MODULE_DEPEND(wi, wlan, 1, 1, 1); 114 115 static int 116 wi_pci_probe(device_t dev) 117 { 118 struct wi_softc *sc; 119 int i; 120 121 wlan_serialize_enter(); 122 sc = device_get_softc(dev); 123 for(i=0; pci_ids[i].vendor != 0; i++) { 124 if ((pci_get_vendor(dev) == pci_ids[i].vendor) && 125 (pci_get_device(dev) == pci_ids[i].device)) { 126 sc->wi_bus_type = pci_ids[i].bus_type; 127 device_set_desc(dev, pci_ids[i].desc); 128 wlan_serialize_exit(); 129 return (BUS_PROBE_DEFAULT); 130 } 131 } 132 wlan_serialize_exit(); 133 return(ENXIO); 134 } 135 136 static int 137 wi_pci_attach(device_t dev) 138 { 139 struct wi_softc *sc; 140 u_int32_t command, wanted; 141 u_int16_t reg; 142 int error; 143 int timeout; 144 145 wlan_serialize_enter(); 146 sc = device_get_softc(dev); 147 148 command = pci_read_config(dev, PCIR_COMMAND, 4); 149 wanted = PCIM_CMD_PORTEN|PCIM_CMD_MEMEN; 150 command |= wanted; 151 pci_write_config(dev, PCIR_COMMAND, command, 4); 152 command = pci_read_config(dev, PCIR_COMMAND, 4); 153 if ((command & wanted) != wanted) { 154 device_printf(dev, "wi_pci_attach() failed to enable pci!\n"); 155 wlan_serialize_exit(); 156 return (ENXIO); 157 } 158 159 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 160 error = wi_alloc(dev, WI_PCI_IORES); 161 if (error) { 162 wlan_serialize_exit(); 163 return (error); 164 } 165 166 /* Make sure interrupts are disabled. */ 167 CSR_WRITE_2(sc, WI_INT_EN, 0); 168 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 169 170 /* We have to do a magic PLX poke to enable interrupts */ 171 sc->local_rid = WI_PCI_LOCALRES; 172 sc->local = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 173 &sc->local_rid, RF_ACTIVE); 174 sc->wi_localtag = rman_get_bustag(sc->local); 175 sc->wi_localhandle = rman_get_bushandle(sc->local); 176 command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle, 177 WI_LOCAL_INTCSR); 178 command |= WI_LOCAL_INTEN; 179 bus_space_write_4(sc->wi_localtag, sc->wi_localhandle, 180 WI_LOCAL_INTCSR, command); 181 bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid, 182 sc->local); 183 sc->local = NULL; 184 185 sc->mem_rid = WI_PCI_MEMRES; 186 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 187 &sc->mem_rid, RF_ACTIVE); 188 if (sc->mem == NULL) { 189 device_printf(dev, "couldn't allocate memory\n"); 190 wi_free(dev); 191 wlan_serialize_exit(); 192 return (ENXIO); 193 } 194 sc->wi_bmemtag = rman_get_bustag(sc->mem); 195 sc->wi_bmemhandle = rman_get_bushandle(sc->mem); 196 197 /* 198 * Write COR to enable PC card 199 * This is a subset of the protocol that the pccard bus code 200 * would do. In theory, we should parse the CIS to find the 201 * COR offset. In practice, the COR_OFFSET is always 0x3e0. 202 */ 203 CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE); 204 reg = CSM_READ_1(sc, WI_COR_OFFSET); 205 if (reg != WI_COR_VALUE) { 206 device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) " 207 "wanted %d, got %d\n", WI_COR_VALUE, reg); 208 wi_free(dev); 209 wlan_serialize_exit(); 210 return (ENXIO); 211 } 212 } else { 213 error = wi_alloc(dev, WI_PCI_LMEMRES); 214 if (error) { 215 wlan_serialize_exit(); 216 return (error); 217 } 218 219 CSR_WRITE_2(sc, WI_PCICOR_OFF, WI_PCICOR_RESET); 220 DELAY(250000); 221 222 CSR_WRITE_2(sc, WI_PCICOR_OFF, 0x0000); 223 DELAY(500000); 224 225 timeout=2000000; 226 while ((--timeout > 0) && 227 (CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 228 DELAY(10); 229 230 if (timeout == 0) { 231 device_printf(dev, "couldn't reset prism pci core.\n"); 232 wi_free(dev); 233 wlan_serialize_exit(); 234 return(ENXIO); 235 } 236 } 237 238 CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC); 239 reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF); 240 if (reg != WI_PRISM2STA_MAGIC) { 241 device_printf(dev, 242 "CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) " 243 "wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg); 244 wi_free(dev); 245 wlan_serialize_exit(); 246 return (ENXIO); 247 } 248 249 error = wi_attach(dev); 250 if (error != 0) 251 wi_free(dev); 252 wlan_serialize_exit(); 253 return (error); 254 } 255 256 static int 257 wi_pci_suspend(device_t dev) 258 { 259 struct wi_softc *sc = device_get_softc(dev); 260 261 wlan_serialize_enter(); 262 wi_stop(sc, 1); 263 wlan_serialize_exit(); 264 265 return (0); 266 } 267 268 static int 269 wi_pci_resume(device_t dev) 270 { 271 struct wi_softc *sc = device_get_softc(dev); 272 struct ifnet *ifp = sc->sc_ifp; 273 274 wlan_serialize_enter(); 275 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 276 wlan_serialize_exit(); 277 return (0); 278 } 279 280 if (ifp->if_flags & IFF_UP) { 281 ifp->if_init(ifp->if_softc); 282 if (ifp->if_flags & IFF_RUNNING) 283 ifp->if_start(ifp); 284 } 285 wlan_serialize_exit(); 286 287 return (0); 288 } 289