if_an_pci.c revision 1.23
1/* $NetBSD: if_an_pci.c,v 1.23 2007/10/19 12:00:44 ad 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 <sys/cdefs.h> 46__KERNEL_RCSID(0, "$NetBSD: if_an_pci.c,v 1.23 2007/10/19 12:00:44 ad Exp $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/mbuf.h> 51#include <sys/malloc.h> 52#include <sys/kernel.h> 53#include <sys/socket.h> 54#include <sys/ioctl.h> 55#include <sys/errno.h> 56#include <sys/device.h> 57#include <sys/callout.h> 58 59#include <machine/endian.h> 60 61#include <net/if.h> 62#include <net/if_dl.h> 63#include <net/if_media.h> 64#include <net/if_ether.h> 65 66#include <net80211/ieee80211_netbsd.h> 67#include <net80211/ieee80211_var.h> 68 69#include <sys/bus.h> 70#include <sys/intr.h> 71 72#include <dev/ic/anreg.h> 73#include <dev/ic/anvar.h> 74 75#include <dev/pci/pcivar.h> 76#include <dev/pci/pcireg.h> 77#include <dev/pci/pcidevs.h> 78 79#define AN_PCI_PLX_IOBA 0x14 /* i/o base for PLX chip */ 80#define AN_PCI_IOBA 0x18 /* i/o base */ 81 82struct an_pci_softc { 83 struct an_softc sc_an; /* real "an" softc */ 84 85 /* PCI-specific goo. */ 86 void *sc_ih; /* interrupt handle */ 87}; 88 89static int an_pci_match(struct device *, struct cfdata *, void *); 90static void an_pci_attach(struct device *, struct device *, void *); 91 92CFATTACH_DECL(an_pci, sizeof(struct an_pci_softc), 93 an_pci_match, an_pci_attach, NULL, NULL); 94 95static const struct an_pci_product { 96 u_int32_t app_vendor; /* PCI vendor ID */ 97 u_int32_t app_product; /* PCI product ID */ 98} an_pci_products[] = { 99 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4xxx }, 100 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 }, 101 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 }, 102 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PCI350 }, 103 { 0, 0 } 104}; 105 106static int 107an_pci_match(struct device *parent, struct cfdata *match, 108 void *aux) 109{ 110 struct pci_attach_args *pa = aux; 111 const struct an_pci_product *app; 112 113 for (app = an_pci_products; app->app_vendor != 0; app++) { 114 if (PCI_VENDOR(pa->pa_id) == app->app_vendor && 115 PCI_PRODUCT(pa->pa_id) == app->app_product) 116 return 1; 117 } 118 return 0; 119} 120 121static void 122an_pci_attach(struct device *parent, struct device *self, void *aux) 123{ 124 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 125 struct an_pci_softc *psc = (struct an_pci_softc *) self; 126 struct an_softc *sc = &psc->sc_an; 127 char devinfo[256]; 128 char const *intrstr; 129 pci_intr_handle_t ih; 130 bus_size_t iosize; 131 u_int32_t csr; 132 133 aprint_naive(": 802.11 controller\n"); 134 135 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 136 aprint_normal(": %s\n", devinfo); 137 138 /* Map I/O registers */ 139 if (pci_mapreg_map(pa, AN_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, 140 &sc->sc_iot, &sc->sc_ioh, NULL, &iosize) != 0) { 141 aprint_error("%s: unable to map registers\n", self->dv_xname); 142 return; 143 } 144 145 /* Enable the device. */ 146 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 147 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 148 csr | PCI_COMMAND_MASTER_ENABLE); 149 150 /* Map and establish the interrupt. */ 151 if (pci_intr_map(pa, &ih)) { 152 aprint_error("%s: unable to map interrupt\n", self->dv_xname); 153 return; 154 } 155 intrstr = pci_intr_string(pa->pa_pc, ih); 156 psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, an_intr, sc); 157 if (psc->sc_ih == NULL) { 158 aprint_error("%s: unable to establish interrupt", 159 self->dv_xname); 160 if (intrstr != NULL) 161 aprint_normal(" at %s", intrstr); 162 aprint_normal("\n"); 163 return; 164 } 165 aprint_normal("%s: interrupting at %s\n", self->dv_xname, intrstr); 166 sc->sc_enabled = 1; 167 168 if (an_attach(sc) != 0) { 169 aprint_error("%s: failed to attach controller\n", 170 self->dv_xname); 171 pci_intr_disestablish(pa->pa_pc, psc->sc_ih); 172 bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize); 173 } 174} 175