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 1.4 2004/07/27 14:30:10 joerg 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 <netproto/802_11/ieee80211.h> 65 #include <netproto/802_11/ieee80211_ioctl.h> 66 #include <netproto/802_11/if_wavelan_ieee.h> 67 68 #include "wi_hostap.h" 69 #include "if_wivar.h" 70 #include "if_wireg.h" 71 72 static int wi_pci_probe(device_t); 73 static int wi_pci_attach(device_t); 74 75 static device_method_t wi_pci_methods[] = { 76 /* Device interface */ 77 DEVMETHOD(device_probe, wi_pci_probe), 78 DEVMETHOD(device_attach, wi_pci_attach), 79 DEVMETHOD(device_detach, wi_generic_detach), 80 DEVMETHOD(device_shutdown, wi_shutdown), 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, 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 {0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"}, 105 {0, 0, 0, NULL} 106 }; 107 108 DRIVER_MODULE(if_wi, pci, wi_pci_driver, wi_devclass, 0, 0); 109 110 static int 111 wi_pci_probe(dev) 112 device_t dev; 113 { 114 struct wi_softc *sc; 115 int i; 116 117 sc = device_get_softc(dev); 118 for(i=0; pci_ids[i].vendor != 0; i++) { 119 if ((pci_get_vendor(dev) == pci_ids[i].vendor) && 120 (pci_get_device(dev) == pci_ids[i].device)) { 121 sc->wi_bus_type = pci_ids[i].bus_type; 122 device_set_desc(dev, pci_ids[i].desc); 123 return (0); 124 } 125 } 126 return(ENXIO); 127 } 128 129 static int 130 wi_pci_attach(device_t dev) 131 { 132 struct wi_softc *sc; 133 u_int32_t command, wanted; 134 u_int16_t reg; 135 int error; 136 int timeout; 137 138 sc = device_get_softc(dev); 139 140 command = pci_read_config(dev, PCIR_COMMAND, 4); 141 wanted = PCIM_CMD_PORTEN|PCIM_CMD_MEMEN; 142 command |= wanted; 143 pci_write_config(dev, PCIR_COMMAND, command, 4); 144 command = pci_read_config(dev, PCIR_COMMAND, 4); 145 if ((command & wanted) != wanted) { 146 device_printf(dev, "wi_pci_attach() failed to enable pci!\n"); 147 return (ENXIO); 148 } 149 150 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 151 error = wi_alloc(dev, WI_PCI_IORES); 152 if (error) 153 return (error); 154 155 /* Make sure interrupts are disabled. */ 156 CSR_WRITE_2(sc, WI_INT_EN, 0); 157 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 158 159 /* We have to do a magic PLX poke to enable interrupts */ 160 sc->local_rid = WI_PCI_LOCALRES; 161 sc->local = bus_alloc_resource(dev, SYS_RES_IOPORT, 162 &sc->local_rid, 0, ~0, 1, RF_ACTIVE); 163 sc->wi_localtag = rman_get_bustag(sc->local); 164 sc->wi_localhandle = rman_get_bushandle(sc->local); 165 command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle, 166 WI_LOCAL_INTCSR); 167 command |= WI_LOCAL_INTEN; 168 bus_space_write_4(sc->wi_localtag, sc->wi_localhandle, 169 WI_LOCAL_INTCSR, command); 170 bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid, 171 sc->local); 172 sc->local = NULL; 173 174 sc->mem_rid = WI_PCI_MEMRES; 175 sc->mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid, 176 0, ~0, 1, RF_ACTIVE); 177 if (sc->mem == NULL) { 178 device_printf(dev, "couldn't allocate memory\n"); 179 wi_free(dev); 180 return (ENXIO); 181 } 182 sc->wi_bmemtag = rman_get_bustag(sc->mem); 183 sc->wi_bmemhandle = rman_get_bushandle(sc->mem); 184 185 /* 186 * From Linux driver: 187 * Write COR to enable PC card 188 * This is a subset of the protocol that the pccard bus code 189 * would do. 190 */ 191 CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE); 192 reg = CSM_READ_1(sc, WI_COR_OFFSET); 193 if (reg != WI_COR_VALUE) { 194 device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) " 195 "wanted %d, got %d\n", WI_COR_VALUE, reg); 196 wi_free(dev); 197 return (ENXIO); 198 } 199 } else { 200 error = wi_alloc(dev, WI_PCI_LMEMRES); 201 if (error) 202 return (error); 203 204 CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0080); 205 DELAY(250000); 206 207 CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0000); 208 DELAY(500000); 209 210 timeout=2000000; 211 while ((--timeout > 0) && 212 (CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 213 DELAY(10); 214 215 if (timeout == 0) { 216 device_printf(dev, "couldn't reset prism2.5 core.\n"); 217 wi_free(dev); 218 return(ENXIO); 219 } 220 } 221 222 CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC); 223 reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF); 224 if (reg != WI_PRISM2STA_MAGIC) { 225 device_printf(dev, 226 "CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) " 227 "wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg); 228 wi_free(dev); 229 return (ENXIO); 230 } 231 232 error = wi_generic_attach(dev); 233 if (error != 0) 234 return (error); 235 236 return (0); 237 } 238