1 /* $NetBSD: if_an_pci.c,v 1.4 2001/06/18 13:21:24 onoe Exp $ */ 2 3 /* 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Atsushi Onoe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * PCI bus front-end for the Aironet PC4500/PC4800 Wireless LAN Adapter. 41 * Unlike WaveLAN, this adapter attached as PCI device using a PLX 9050 42 * PCI to "dumb bus" bridge chip. 43 */ 44 45 #include "opt_inet.h" 46 #include "opt_ns.h" 47 #include "bpfilter.h" 48 49 #ifdef INET 50 #define ANCACHE /* XXX: should be defined elsewhere */ 51 #endif 52 53 #include <sys/param.h> 54 #include <sys/systm.h> 55 #include <sys/mbuf.h> 56 #include <sys/malloc.h> 57 #include <sys/kernel.h> 58 #include <sys/socket.h> 59 #include <sys/ioctl.h> 60 #include <sys/errno.h> 61 #include <sys/device.h> 62 #include <sys/callout.h> 63 64 #include <machine/endian.h> 65 66 #include <net/if.h> 67 #include <net/if_dl.h> 68 #include <net/if_media.h> 69 #include <net/if_ether.h> 70 #include <net/if_ieee80211.h> 71 72 #if NBPFILTER > 0 73 #include <net/bpf.h> 74 #endif 75 76 #ifdef INET 77 #include <netinet/in.h> 78 #include <netinet/if_inarp.h> 79 #endif 80 81 #include <machine/bus.h> 82 #include <machine/intr.h> 83 84 #include <dev/ic/anreg.h> 85 #include <dev/ic/anvar.h> 86 87 #include <dev/pci/pcivar.h> 88 #include <dev/pci/pcireg.h> 89 #include <dev/pci/pcidevs.h> 90 91 #define AN_PCI_PLX_IOBA 0x14 /* i/o base for PLX chip */ 92 #define AN_PCI_IOBA 0x18 /* i/o base */ 93 94 struct an_pci_softc { 95 struct an_softc sc_an; /* real "an" softc */ 96 97 /* PCI-specific goo. */ 98 void *sc_ih; /* interrupt handle */ 99 }; 100 101 int an_pci_match __P((struct device *, struct cfdata *, void *)); 102 void an_pci_attach __P((struct device *, struct device *, void *)); 103 104 struct cfattach an_pci_ca = { 105 sizeof(struct an_pci_softc), an_pci_match, an_pci_attach, 106 }; 107 108 const struct an_pci_product { 109 u_int32_t app_vendor; /* PCI vendor ID */ 110 u_int32_t app_product; /* PCI product ID */ 111 } an_pci_products[] = { 112 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4xxx }, 113 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 }, 114 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 }, 115 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_350 }, 116 { 0, 0 } 117 }; 118 119 int 120 an_pci_match(struct device *parent, struct cfdata *match, void *aux) 121 { 122 struct pci_attach_args *pa = aux; 123 const struct an_pci_product *app; 124 125 for (app = an_pci_products; app->app_vendor != 0; app++) { 126 if (PCI_VENDOR(pa->pa_id) == app->app_vendor && 127 PCI_PRODUCT(pa->pa_id) == app->app_product) 128 return 1; 129 } 130 return 0; 131 } 132 133 void 134 an_pci_attach(struct device *parent, struct device *self, void *aux) 135 { 136 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 137 struct an_pci_softc *psc = (struct an_pci_softc *) self; 138 struct an_softc *sc = &psc->sc_an; 139 char devinfo[256]; 140 char const *intrstr; 141 pci_intr_handle_t ih; 142 u_int32_t csr; 143 144 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 145 printf(": %s\n", devinfo); 146 147 /* Map I/O registers */ 148 if (pci_mapreg_map(pa, AN_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, 149 &sc->an_btag, &sc->an_bhandle, NULL, NULL) != 0) { 150 printf("%s: unable to map registers\n", self->dv_xname); 151 return; 152 } 153 154 /* Enable the device. */ 155 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 156 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 157 csr | PCI_COMMAND_MASTER_ENABLE); 158 159 /* Map and establish the interrupt. */ 160 if (pci_intr_map(pa, &ih)) { 161 printf("%s: unable to map interrupt\n", self->dv_xname); 162 return; 163 } 164 intrstr = pci_intr_string(pa->pa_pc, ih); 165 psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, an_intr, sc); 166 if (psc->sc_ih == NULL) { 167 printf("%s: unable to establish interrupt", self->dv_xname); 168 if (intrstr != NULL) 169 printf(" at %s", intrstr); 170 printf("\n"); 171 return; 172 } 173 printf("%s: interrupting at %s\n", self->dv_xname, intrstr); 174 sc->sc_enabled = 1; 175 176 if (an_attach(sc) != 0) { 177 printf("%s: failed to attach controller\n", self->dv_xname); 178 pci_intr_disestablish(pa->pa_pc, psc->sc_ih); 179 bus_space_unmap(sc->an_btag, sc->an_bhandle, AN_IOSIZ); 180 } 181 } 182