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 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 return (BUS_PROBE_DEFAULT); 128 } 129 } 130 return(ENXIO); 131 } 132 133 static int 134 wi_pci_attach(device_t dev) 135 { 136 struct wi_softc *sc; 137 u_int32_t command, wanted; 138 u_int16_t reg; 139 int error; 140 int timeout; 141 142 sc = device_get_softc(dev); 143 144 command = pci_read_config(dev, PCIR_COMMAND, 4); 145 wanted = PCIM_CMD_PORTEN|PCIM_CMD_MEMEN; 146 command |= wanted; 147 pci_write_config(dev, PCIR_COMMAND, command, 4); 148 command = pci_read_config(dev, PCIR_COMMAND, 4); 149 if ((command & wanted) != wanted) { 150 device_printf(dev, "wi_pci_attach() failed to enable pci!\n"); 151 return (ENXIO); 152 } 153 154 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 155 error = wi_alloc(dev, WI_PCI_IORES); 156 if (error) 157 return (error); 158 159 /* Make sure interrupts are disabled. */ 160 CSR_WRITE_2(sc, WI_INT_EN, 0); 161 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 162 163 /* We have to do a magic PLX poke to enable interrupts */ 164 sc->local_rid = WI_PCI_LOCALRES; 165 sc->local = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 166 &sc->local_rid, RF_ACTIVE); 167 sc->wi_localtag = rman_get_bustag(sc->local); 168 sc->wi_localhandle = rman_get_bushandle(sc->local); 169 command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle, 170 WI_LOCAL_INTCSR); 171 command |= WI_LOCAL_INTEN; 172 bus_space_write_4(sc->wi_localtag, sc->wi_localhandle, 173 WI_LOCAL_INTCSR, command); 174 bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid, 175 sc->local); 176 sc->local = NULL; 177 178 sc->mem_rid = WI_PCI_MEMRES; 179 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 180 &sc->mem_rid, RF_ACTIVE); 181 if (sc->mem == NULL) { 182 device_printf(dev, "couldn't allocate memory\n"); 183 wi_free(dev); 184 return (ENXIO); 185 } 186 sc->wi_bmemtag = rman_get_bustag(sc->mem); 187 sc->wi_bmemhandle = rman_get_bushandle(sc->mem); 188 189 /* 190 * Write COR to enable PC card 191 * This is a subset of the protocol that the pccard bus code 192 * would do. In theory, we should parse the CIS to find the 193 * COR offset. In practice, the COR_OFFSET is always 0x3e0. 194 */ 195 CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE); 196 reg = CSM_READ_1(sc, WI_COR_OFFSET); 197 if (reg != WI_COR_VALUE) { 198 device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) " 199 "wanted %d, got %d\n", WI_COR_VALUE, reg); 200 wi_free(dev); 201 return (ENXIO); 202 } 203 } else { 204 error = wi_alloc(dev, WI_PCI_LMEMRES); 205 if (error) 206 return (error); 207 208 CSR_WRITE_2(sc, WI_PCICOR_OFF, WI_PCICOR_RESET); 209 DELAY(250000); 210 211 CSR_WRITE_2(sc, WI_PCICOR_OFF, 0x0000); 212 DELAY(500000); 213 214 timeout=2000000; 215 while ((--timeout > 0) && 216 (CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 217 DELAY(10); 218 219 if (timeout == 0) { 220 device_printf(dev, "couldn't reset prism pci core.\n"); 221 wi_free(dev); 222 return(ENXIO); 223 } 224 } 225 226 CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC); 227 reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF); 228 if (reg != WI_PRISM2STA_MAGIC) { 229 device_printf(dev, 230 "CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) " 231 "wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg); 232 wi_free(dev); 233 return (ENXIO); 234 } 235 236 error = wi_attach(dev); 237 if (error != 0) 238 wi_free(dev); 239 return (error); 240 } 241 242 static int 243 wi_pci_suspend(device_t dev) 244 { 245 struct wi_softc *sc = device_get_softc(dev); 246 247 wi_stop(sc, 1); 248 249 return (0); 250 } 251 252 static int 253 wi_pci_resume(device_t dev) 254 { 255 struct wi_softc *sc = device_get_softc(dev); 256 struct ifnet *ifp = sc->sc_ifp; 257 258 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) 259 return (0); 260 261 if (ifp->if_flags & IFF_UP) { 262 ifp->if_init(ifp->if_softc); 263 if (ifp->if_flags & IFF_RUNNING) 264 ifp->if_start(ifp); 265 } 266 267 return (0); 268 } 269