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: src/sys/dev/wi/if_wi_pci.c,v 1.8.2.3 2002/06/16 18:07:18 nsayer Exp $ 33 * $DragonFly: src/sys/dev/netif/wi/if_wi_pci.c,v 1.3 2003/08/07 21:17:06 dillon Exp $ 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 51 #include <machine/bus.h> 52 #include <machine/resource.h> 53 #include <machine/clock.h> 54 #include <sys/rman.h> 55 56 #include <bus/pci/pcireg.h> 57 #include <bus/pci/pcivar.h> 58 59 #include <net/if.h> 60 #include <net/if_arp.h> 61 #include <net/ethernet.h> 62 #include <net/if_media.h> 63 #include <net/if_types.h> 64 #include <net/if_ieee80211.h> 65 66 #include "if_wavelan_ieee.h" 67 #include "wi_hostap.h" 68 #include "if_wivar.h" 69 #include "if_wireg.h" 70 71 static int wi_pci_probe(device_t); 72 static int wi_pci_attach(device_t); 73 74 static device_method_t wi_pci_methods[] = { 75 /* Device interface */ 76 DEVMETHOD(device_probe, wi_pci_probe), 77 DEVMETHOD(device_attach, wi_pci_attach), 78 DEVMETHOD(device_detach, wi_generic_detach), 79 DEVMETHOD(device_shutdown, wi_shutdown), 80 81 { 0, 0 } 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, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"}, 99 {0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"}, 100 {0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"}, 101 {0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"}, 102 {0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"}, 103 {0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"}, 104 {0, 0, 0, NULL} 105 }; 106 107 DRIVER_MODULE(if_wi, pci, wi_pci_driver, wi_devclass, 0, 0); 108 109 static int 110 wi_pci_probe(dev) 111 device_t dev; 112 { 113 struct wi_softc *sc; 114 int i; 115 116 sc = device_get_softc(dev); 117 for(i=0; pci_ids[i].vendor != 0; i++) { 118 if ((pci_get_vendor(dev) == pci_ids[i].vendor) && 119 (pci_get_device(dev) == pci_ids[i].device)) { 120 sc->wi_bus_type = pci_ids[i].bus_type; 121 device_set_desc(dev, pci_ids[i].desc); 122 return (0); 123 } 124 } 125 return(ENXIO); 126 } 127 128 static int 129 wi_pci_attach(device_t dev) 130 { 131 struct wi_softc *sc; 132 u_int32_t command, wanted; 133 u_int16_t reg; 134 int error; 135 int timeout; 136 137 sc = device_get_softc(dev); 138 139 command = pci_read_config(dev, PCIR_COMMAND, 4); 140 wanted = PCIM_CMD_PORTEN|PCIM_CMD_MEMEN; 141 command |= wanted; 142 pci_write_config(dev, PCIR_COMMAND, command, 4); 143 command = pci_read_config(dev, PCIR_COMMAND, 4); 144 if ((command & wanted) != wanted) { 145 device_printf(dev, "wi_pci_attach() failed to enable pci!\n"); 146 return (ENXIO); 147 } 148 149 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 150 error = wi_alloc(dev, WI_PCI_IORES); 151 if (error) 152 return (error); 153 154 /* Make sure interrupts are disabled. */ 155 CSR_WRITE_2(sc, WI_INT_EN, 0); 156 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 157 158 /* We have to do a magic PLX poke to enable interrupts */ 159 sc->local_rid = WI_PCI_LOCALRES; 160 sc->local = bus_alloc_resource(dev, SYS_RES_IOPORT, 161 &sc->local_rid, 0, ~0, 1, RF_ACTIVE); 162 sc->wi_localtag = rman_get_bustag(sc->local); 163 sc->wi_localhandle = rman_get_bushandle(sc->local); 164 command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle, 165 WI_LOCAL_INTCSR); 166 command |= WI_LOCAL_INTEN; 167 bus_space_write_4(sc->wi_localtag, sc->wi_localhandle, 168 WI_LOCAL_INTCSR, command); 169 bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid, 170 sc->local); 171 sc->local = NULL; 172 173 sc->mem_rid = WI_PCI_MEMRES; 174 sc->mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid, 175 0, ~0, 1, RF_ACTIVE); 176 if (sc->mem == NULL) { 177 device_printf(dev, "couldn't allocate memory\n"); 178 wi_free(dev); 179 return (ENXIO); 180 } 181 sc->wi_bmemtag = rman_get_bustag(sc->mem); 182 sc->wi_bmemhandle = rman_get_bushandle(sc->mem); 183 184 /* 185 * From Linux driver: 186 * Write COR to enable PC card 187 * This is a subset of the protocol that the pccard bus code 188 * would do. 189 */ 190 CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE); 191 reg = CSM_READ_1(sc, WI_COR_OFFSET); 192 if (reg != WI_COR_VALUE) { 193 device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) " 194 "wanted %d, got %d\n", WI_COR_VALUE, reg); 195 wi_free(dev); 196 return (ENXIO); 197 } 198 } else { 199 error = wi_alloc(dev, WI_PCI_LMEMRES); 200 if (error) 201 return (error); 202 203 CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0080); 204 DELAY(250000); 205 206 CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0000); 207 DELAY(500000); 208 209 timeout=2000000; 210 while ((--timeout > 0) && 211 (CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 212 DELAY(10); 213 214 if (timeout == 0) { 215 device_printf(dev, "couldn't reset prism2.5 core.\n"); 216 wi_free(dev); 217 return(ENXIO); 218 } 219 } 220 221 CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC); 222 reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF); 223 if (reg != WI_PRISM2STA_MAGIC) { 224 device_printf(dev, 225 "CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) " 226 "wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg); 227 wi_free(dev); 228 return (ENXIO); 229 } 230 231 error = wi_generic_attach(dev); 232 if (error != 0) 233 return (error); 234 235 return (0); 236 } 237