if_an_pci.c revision 1.3
1/* $NetBSD: if_an_pci.c,v 1.3 2001/06/12 22:05:53 thorpej 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 71#if NBPFILTER > 0 72#include <net/bpf.h> 73#endif 74 75#ifdef INET 76#include <netinet/in.h> 77#include <netinet/if_inarp.h> 78#endif 79 80#include <machine/bus.h> 81#include <machine/intr.h> 82 83#include <dev/ic/anreg.h> 84#include <dev/ic/anvar.h> 85 86#include <dev/pci/pcivar.h> 87#include <dev/pci/pcireg.h> 88#include <dev/pci/pcidevs.h> 89 90#define AN_PCI_PLX_IOBA 0x14 /* i/o base for PLX chip */ 91#define AN_PCI_IOBA 0x18 /* i/o base */ 92 93struct an_pci_softc { 94 struct an_softc sc_an; /* real "an" softc */ 95 96 /* PCI-specific goo. */ 97 void *sc_ih; /* interrupt handle */ 98}; 99 100int an_pci_match __P((struct device *, struct cfdata *, void *)); 101void an_pci_attach __P((struct device *, struct device *, void *)); 102 103struct cfattach an_pci_ca = { 104 sizeof(struct an_pci_softc), an_pci_match, an_pci_attach, 105}; 106 107const struct an_pci_product { 108 u_int32_t app_vendor; /* PCI vendor ID */ 109 u_int32_t app_product; /* PCI product ID */ 110} an_pci_products[] = { 111 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4xxx }, 112 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 }, 113 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 }, 114 { 0, 0 } 115}; 116 117int 118an_pci_match(struct device *parent, struct cfdata *match, void *aux) 119{ 120 struct pci_attach_args *pa = aux; 121 const struct an_pci_product *app; 122 123 for (app = an_pci_products; app->app_vendor != 0; app++) { 124 if (PCI_VENDOR(pa->pa_id) == app->app_vendor && 125 PCI_PRODUCT(pa->pa_id) == app->app_product) 126 return 1; 127 } 128 return 0; 129} 130 131void 132an_pci_attach(struct device *parent, struct device *self, void *aux) 133{ 134 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 135 struct an_pci_softc *psc = (struct an_pci_softc *) self; 136 struct an_softc *sc = &psc->sc_an; 137 char devinfo[256]; 138 char const *intrstr; 139 pci_intr_handle_t ih; 140 u_int32_t csr; 141 142 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 143 printf(": %s\n", devinfo); 144 145 /* Map I/O registers */ 146 if (pci_mapreg_map(pa, AN_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, 147 &sc->an_btag, &sc->an_bhandle, NULL, NULL) != 0) { 148 printf("%s: unable to map registers\n", self->dv_xname); 149 return; 150 } 151 152 /* Enable the device. */ 153 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 154 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 155 csr | PCI_COMMAND_MASTER_ENABLE); 156 157 /* Map and establish the interrupt. */ 158 if (pci_intr_map(pa, &ih)) { 159 printf("%s: unable to map interrupt\n", self->dv_xname); 160 return; 161 } 162 intrstr = pci_intr_string(pa->pa_pc, ih); 163 psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, an_intr, sc); 164 if (psc->sc_ih == NULL) { 165 printf("%s: unable to establish interrupt", self->dv_xname); 166 if (intrstr != NULL) 167 printf(" at %s", intrstr); 168 printf("\n"); 169 return; 170 } 171 printf("%s: interrupting at %s\n", self->dv_xname, intrstr); 172 sc->sc_enabled = 1; 173 174 if (an_attach(sc) != 0) { 175 printf("%s: failed to attach controller\n", self->dv_xname); 176 pci_intr_disestablish(pa->pa_pc, psc->sc_ih); 177 bus_space_unmap(sc->an_btag, sc->an_bhandle, AN_IOSIZ); 178 } 179} 180