if_wi_pci.c revision 119287
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 119287 2003-08-22 07:08:17Z 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 50#include <machine/bus.h> 51#include <machine/resource.h> 52#include <machine/clock.h> 53#include <sys/rman.h> 54 55#include <dev/pci/pcireg.h> 56#include <dev/pci/pcivar.h> 57 58#include <net/if.h> 59#include <net/if_arp.h> 60#include <net/ethernet.h> 61#include <net/if_media.h> 62#include <net/if_types.h> 63 64#include <net80211/ieee80211_var.h> 65 66#include <dev/wi/if_wavelan_ieee.h> 67#include <dev/wi/if_wivar.h> 68#include <dev/wi/if_wireg.h> 69 70static int wi_pci_probe(device_t); 71static int wi_pci_attach(device_t); 72static int wi_pci_suspend(device_t); 73static int wi_pci_resume(device_t); 74 75static 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_detach), 80 DEVMETHOD(device_shutdown, wi_shutdown), 81 DEVMETHOD(device_suspend, wi_pci_suspend), 82 DEVMETHOD(device_resume, wi_pci_resume), 83 84 { 0, 0 } 85}; 86 87static driver_t wi_pci_driver = { 88 "wi", 89 wi_pci_methods, 90 sizeof(struct wi_softc) 91}; 92 93static struct { 94 unsigned int vendor,device; 95 int bus_type; 96 char *desc; 97} pci_ids[] = { 98 /* Sorted by description */ 99 {0x10b7, 0x7770, WI_BUS_PCI_PLX, "3Com Airconnect"}, 100 {0x16ab, 0x1101, WI_BUS_PCI_PLX, "GLPRISM2 WaveLAN"}, 101 {0x1260, 0x3872, WI_BUS_PCI_NATIVE, "Intersil Prism3"}, 102 {0x1260, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"}, 103 {0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"}, 104 {0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"}, 105 {0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"}, 106 {0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"}, 107 {0x10b5, 0x9050, WI_BUS_PCI_PLX, "SMC 2602W"}, 108 {0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"}, 109 {0x4033, 0x7001, WI_BUS_PCI_PLX, "Addtron AWA-100 PCI"}, 110 {0, 0, 0, NULL} 111}; 112 113DRIVER_MODULE(wi, pci, wi_pci_driver, wi_devclass, 0, 0); 114MODULE_DEPEND(wi, pci, 1, 1, 1); 115MODULE_DEPEND(wi, wlan, 1, 1, 1); 116 117static int 118wi_pci_probe(dev) 119 device_t dev; 120{ 121 struct wi_softc *sc; 122 int i; 123 124 sc = device_get_softc(dev); 125 for(i=0; pci_ids[i].vendor != 0; i++) { 126 if ((pci_get_vendor(dev) == pci_ids[i].vendor) && 127 (pci_get_device(dev) == pci_ids[i].device)) { 128 sc->wi_bus_type = pci_ids[i].bus_type; 129 device_set_desc(dev, pci_ids[i].desc); 130 return (0); 131 } 132 } 133 return(ENXIO); 134} 135 136static int 137wi_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 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 return (ENXIO); 155 } 156 157 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 158 error = wi_alloc(dev, WI_PCI_IORES); 159 if (error) 160 return (error); 161 162 /* Make sure interrupts are disabled. */ 163 CSR_WRITE_2(sc, WI_INT_EN, 0); 164 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 165 166 /* We have to do a magic PLX poke to enable interrupts */ 167 sc->local_rid = WI_PCI_LOCALRES; 168 sc->local = bus_alloc_resource(dev, SYS_RES_IOPORT, 169 &sc->local_rid, 0, ~0, 1, RF_ACTIVE); 170 sc->wi_localtag = rman_get_bustag(sc->local); 171 sc->wi_localhandle = rman_get_bushandle(sc->local); 172 command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle, 173 WI_LOCAL_INTCSR); 174 command |= WI_LOCAL_INTEN; 175 bus_space_write_4(sc->wi_localtag, sc->wi_localhandle, 176 WI_LOCAL_INTCSR, command); 177 bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid, 178 sc->local); 179 sc->local = NULL; 180 181 sc->mem_rid = WI_PCI_MEMRES; 182 sc->mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid, 183 0, ~0, 1, RF_ACTIVE); 184 if (sc->mem == NULL) { 185 device_printf(dev, "couldn't allocate memory\n"); 186 wi_free(dev); 187 return (ENXIO); 188 } 189 sc->wi_bmemtag = rman_get_bustag(sc->mem); 190 sc->wi_bmemhandle = rman_get_bushandle(sc->mem); 191 192 /* 193 * From Linux driver: 194 * Write COR to enable PC card 195 * This is a subset of the protocol that the pccard bus code 196 * would do. 197 */ 198 CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE); 199 reg = CSM_READ_1(sc, WI_COR_OFFSET); 200 if (reg != WI_COR_VALUE) { 201 device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) " 202 "wanted %d, got %d\n", WI_COR_VALUE, reg); 203 wi_free(dev); 204 return (ENXIO); 205 } 206 } else { 207 error = wi_alloc(dev, WI_PCI_LMEMRES); 208 if (error) 209 return (error); 210 211 CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0080); 212 DELAY(250000); 213 214 CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0000); 215 DELAY(500000); 216 217 timeout=2000000; 218 while ((--timeout > 0) && 219 (CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 220 DELAY(10); 221 222 if (timeout == 0) { 223 device_printf(dev, "couldn't reset prism2.5 core.\n"); 224 wi_free(dev); 225 return(ENXIO); 226 } 227 } 228 229 CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC); 230 reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF); 231 if (reg != WI_PRISM2STA_MAGIC) { 232 device_printf(dev, 233 "CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) " 234 "wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg); 235 wi_free(dev); 236 return (ENXIO); 237 } 238 239 error = wi_attach(dev); 240 if (error != 0) 241 wi_free(dev); 242 return (error); 243} 244 245static int 246wi_pci_suspend(device_t dev) 247{ 248 struct wi_softc *sc; 249 struct ifnet *ifp; 250 sc = device_get_softc(dev); 251 ifp = &sc->sc_if; 252 253 wi_stop(ifp, 1); 254 255 return (0); 256} 257 258static int 259wi_pci_resume(device_t dev) 260{ 261 struct wi_softc *sc; 262 struct ifnet *ifp; 263 sc = device_get_softc(dev); 264 ifp = &sc->sc_if; 265 266 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) 267 return (0); 268 269 if (ifp->if_flags & IFF_UP) { 270 ifp->if_init(ifp->if_softc); 271 if (ifp->if_flags & IFF_RUNNING) 272 ifp->if_start(ifp); 273 } 274 275 return (0); 276} 277