if_an_pci.c revision 1.14
1/* $NetBSD: if_an_pci.c,v 1.14 2004/04/23 21:13:06 itojun 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 1.14 2004/04/23 21:13:06 itojun 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_var.h> 67#include <net80211/ieee80211_compat.h> 68 69#include <machine/bus.h> 70#include <machine/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 89int an_pci_match __P((struct device *, struct cfdata *, void *)); 90void an_pci_attach __P((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 95const 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_350 }, 103 { 0, 0 } 104}; 105 106int 107an_pci_match(struct device *parent, struct cfdata *match, void *aux) 108{ 109 struct pci_attach_args *pa = aux; 110 const struct an_pci_product *app; 111 112 for (app = an_pci_products; app->app_vendor != 0; app++) { 113 if (PCI_VENDOR(pa->pa_id) == app->app_vendor && 114 PCI_PRODUCT(pa->pa_id) == app->app_product) 115 return 1; 116 } 117 return 0; 118} 119 120void 121an_pci_attach(struct device *parent, struct device *self, void *aux) 122{ 123 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 124 struct an_pci_softc *psc = (struct an_pci_softc *) self; 125 struct an_softc *sc = &psc->sc_an; 126 char devinfo[256]; 127 char const *intrstr; 128 pci_intr_handle_t ih; 129 u_int32_t csr; 130 131 aprint_naive(": 802.11 controller\n"); 132 133 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 134 aprint_normal(": %s\n", devinfo); 135 136 /* Map I/O registers */ 137 if (pci_mapreg_map(pa, AN_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, 138 &sc->sc_iot, &sc->sc_ioh, NULL, NULL) != 0) { 139 aprint_error("%s: unable to map registers\n", self->dv_xname); 140 return; 141 } 142 143 /* Enable the device. */ 144 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 145 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 146 csr | PCI_COMMAND_MASTER_ENABLE); 147 148 /* Map and establish the interrupt. */ 149 if (pci_intr_map(pa, &ih)) { 150 aprint_error("%s: unable to map interrupt\n", self->dv_xname); 151 return; 152 } 153 intrstr = pci_intr_string(pa->pa_pc, ih); 154 psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, an_intr, sc); 155 if (psc->sc_ih == NULL) { 156 aprint_error("%s: unable to establish interrupt", 157 self->dv_xname); 158 if (intrstr != NULL) 159 aprint_normal(" at %s", intrstr); 160 aprint_normal("\n"); 161 return; 162 } 163 aprint_normal("%s: interrupting at %s\n", self->dv_xname, intrstr); 164 sc->sc_enabled = 1; 165 166 if (an_attach(sc) != 0) { 167 aprint_error("%s: failed to attach controller\n", 168 self->dv_xname); 169 pci_intr_disestablish(pa->pa_pc, psc->sc_ih); 170 bus_space_unmap(sc->sc_iot, sc->sc_ioh, AN_IOSIZ); 171 } 172} 173