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 */ 34 35 /* 36 * Lucent WaveLAN/IEEE 802.11 PCMCIA driver for FreeBSD. 37 * 38 * Written by Bill Paul <wpaul@ctr.columbia.edu> 39 * Electrical Engineering Department 40 * Columbia University, New York City 41 */ 42 43 #include <sys/param.h> 44 #include <sys/kernel.h> 45 #include <sys/socket.h> 46 #include <sys/systm.h> 47 #include <sys/module.h> 48 #include <sys/bus.h> 49 #include <sys/rman.h> 50 51 #include <bus/pci/pcireg.h> 52 #include <bus/pci/pcivar.h> 53 54 #include <net/if.h> 55 #include <net/if_arp.h> 56 #include <net/ethernet.h> 57 #include <net/if_media.h> 58 #include <net/if_types.h> 59 60 #include <netproto/802_11/ieee80211_var.h> 61 #include <netproto/802_11/ieee80211_radiotap.h> 62 63 #include <dev/netif/wi/if_wavelan_ieee.h> 64 #include <dev/netif/wi/if_wireg.h> 65 #include <dev/netif/wi/if_wivar.h> 66 67 static int wi_pci_probe(device_t); 68 static int wi_pci_attach(device_t); 69 static int wi_pci_suspend(device_t); 70 static int wi_pci_resume(device_t); 71 72 static device_method_t wi_pci_methods[] = { 73 /* Device interface */ 74 DEVMETHOD(device_probe, wi_pci_probe), 75 DEVMETHOD(device_attach, wi_pci_attach), 76 DEVMETHOD(device_detach, wi_detach), 77 DEVMETHOD(device_shutdown, wi_shutdown), 78 DEVMETHOD(device_suspend, wi_pci_suspend), 79 DEVMETHOD(device_resume, wi_pci_resume), 80 81 DEVMETHOD_END 82 }; 83 84 static driver_t wi_pci_driver = { 85 "wi", 86 wi_pci_methods, 87 sizeof(struct wi_softc) 88 }; 89 90 static struct { 91 unsigned int vendor,device; 92 int bus_type; 93 char *desc; 94 } pci_ids[] = { 95 /* Sorted by description */ 96 {0x10b7, 0x7770, WI_BUS_PCI_PLX, "3Com Airconnect"}, 97 {0x16ab, 0x1101, WI_BUS_PCI_PLX, "GLPRISM2 WaveLAN"}, 98 {0x1260, 0x3872, WI_BUS_PCI_NATIVE, "Intersil Prism3"}, 99 {0x1260, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"}, 100 {0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"}, 101 {0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"}, 102 {0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"}, 103 {0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"}, 104 {0x10b5, 0x9050, WI_BUS_PCI_PLX, "SMC 2602W"}, 105 {0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"}, 106 {0x4033, 0x7001, WI_BUS_PCI_PLX, "Addtron AWA-100 PCI"}, 107 {0, 0, 0, NULL} 108 }; 109 110 DRIVER_MODULE(wi, pci, wi_pci_driver, wi_devclass, NULL, NULL); 111 MODULE_DEPEND(wi, pci, 1, 1, 1); 112 MODULE_DEPEND(wi, wlan, 1, 1, 1); 113 114 static int 115 wi_pci_probe(device_t dev) 116 { 117 struct wi_softc *sc; 118 int i; 119 120 wlan_serialize_enter(); 121 sc = device_get_softc(dev); 122 for(i=0; pci_ids[i].vendor != 0; i++) { 123 if ((pci_get_vendor(dev) == pci_ids[i].vendor) && 124 (pci_get_device(dev) == pci_ids[i].device)) { 125 sc->wi_bus_type = pci_ids[i].bus_type; 126 device_set_desc(dev, pci_ids[i].desc); 127 wlan_serialize_exit(); 128 return (BUS_PROBE_DEFAULT); 129 } 130 } 131 wlan_serialize_exit(); 132 return(ENXIO); 133 } 134 135 static int 136 wi_pci_attach(device_t dev) 137 { 138 struct wi_softc *sc; 139 u_int32_t command, wanted; 140 u_int16_t reg; 141 int error; 142 int timeout; 143 144 wlan_serialize_enter(); 145 sc = device_get_softc(dev); 146 147 command = pci_read_config(dev, PCIR_COMMAND, 4); 148 wanted = PCIM_CMD_PORTEN|PCIM_CMD_MEMEN; 149 command |= wanted; 150 pci_write_config(dev, PCIR_COMMAND, command, 4); 151 command = pci_read_config(dev, PCIR_COMMAND, 4); 152 if ((command & wanted) != wanted) { 153 device_printf(dev, "wi_pci_attach() failed to enable pci!\n"); 154 wlan_serialize_exit(); 155 return (ENXIO); 156 } 157 158 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 159 error = wi_alloc(dev, WI_PCI_IORES); 160 if (error) { 161 wlan_serialize_exit(); 162 return (error); 163 } 164 165 /* Make sure interrupts are disabled. */ 166 CSR_WRITE_2(sc, WI_INT_EN, 0); 167 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 168 169 /* We have to do a magic PLX poke to enable interrupts */ 170 sc->local_rid = WI_PCI_LOCALRES; 171 sc->local = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 172 &sc->local_rid, RF_ACTIVE); 173 sc->wi_localtag = rman_get_bustag(sc->local); 174 sc->wi_localhandle = rman_get_bushandle(sc->local); 175 command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle, 176 WI_LOCAL_INTCSR); 177 command |= WI_LOCAL_INTEN; 178 bus_space_write_4(sc->wi_localtag, sc->wi_localhandle, 179 WI_LOCAL_INTCSR, command); 180 bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid, 181 sc->local); 182 sc->local = NULL; 183 184 sc->mem_rid = WI_PCI_MEMRES; 185 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 186 &sc->mem_rid, RF_ACTIVE); 187 if (sc->mem == NULL) { 188 device_printf(dev, "couldn't allocate memory\n"); 189 wi_free(dev); 190 wlan_serialize_exit(); 191 return (ENXIO); 192 } 193 sc->wi_bmemtag = rman_get_bustag(sc->mem); 194 sc->wi_bmemhandle = rman_get_bushandle(sc->mem); 195 196 /* 197 * Write COR to enable PC card 198 * This is a subset of the protocol that the pccard bus code 199 * would do. In theory, we should parse the CIS to find the 200 * COR offset. In practice, the COR_OFFSET is always 0x3e0. 201 */ 202 CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE); 203 reg = CSM_READ_1(sc, WI_COR_OFFSET); 204 if (reg != WI_COR_VALUE) { 205 device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) " 206 "wanted %d, got %d\n", WI_COR_VALUE, reg); 207 wi_free(dev); 208 wlan_serialize_exit(); 209 return (ENXIO); 210 } 211 } else { 212 error = wi_alloc(dev, WI_PCI_LMEMRES); 213 if (error) { 214 wlan_serialize_exit(); 215 return (error); 216 } 217 218 CSR_WRITE_2(sc, WI_PCICOR_OFF, WI_PCICOR_RESET); 219 DELAY(250000); 220 221 CSR_WRITE_2(sc, WI_PCICOR_OFF, 0x0000); 222 DELAY(500000); 223 224 timeout=2000000; 225 while ((--timeout > 0) && 226 (CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 227 DELAY(10); 228 229 if (timeout == 0) { 230 device_printf(dev, "couldn't reset prism pci core.\n"); 231 wi_free(dev); 232 wlan_serialize_exit(); 233 return(ENXIO); 234 } 235 } 236 237 CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC); 238 reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF); 239 if (reg != WI_PRISM2STA_MAGIC) { 240 device_printf(dev, 241 "CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) " 242 "wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg); 243 wi_free(dev); 244 wlan_serialize_exit(); 245 return (ENXIO); 246 } 247 248 error = wi_attach(dev); 249 if (error != 0) 250 wi_free(dev); 251 wlan_serialize_exit(); 252 return (error); 253 } 254 255 static int 256 wi_pci_suspend(device_t dev) 257 { 258 struct wi_softc *sc = device_get_softc(dev); 259 260 wlan_serialize_enter(); 261 wi_stop(sc, 1); 262 wlan_serialize_exit(); 263 264 return (0); 265 } 266 267 static int 268 wi_pci_resume(device_t dev) 269 { 270 struct wi_softc *sc = device_get_softc(dev); 271 struct ifnet *ifp = sc->sc_ifp; 272 273 wlan_serialize_enter(); 274 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 275 wlan_serialize_exit(); 276 return (0); 277 } 278 279 if (ifp->if_flags & IFF_UP) { 280 ifp->if_init(ifp->if_softc); 281 if (ifp->if_flags & IFF_RUNNING) 282 if_devstart(ifp); 283 } 284 wlan_serialize_exit(); 285 286 return (0); 287 } 288