1 /* $NetBSD: if_an_pci.c,v 1.10 2003/01/31 00:07:42 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 <sys/cdefs.h> 46 __KERNEL_RCSID(0, "$NetBSD: if_an_pci.c,v 1.10 2003/01/31 00:07:42 thorpej 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 #include <net/if_ieee80211.h> 66 67 #include <machine/bus.h> 68 #include <machine/intr.h> 69 70 #include <dev/ic/anreg.h> 71 #include <dev/ic/anvar.h> 72 73 #include <dev/pci/pcivar.h> 74 #include <dev/pci/pcireg.h> 75 #include <dev/pci/pcidevs.h> 76 77 #define AN_PCI_PLX_IOBA 0x14 /* i/o base for PLX chip */ 78 #define AN_PCI_IOBA 0x18 /* i/o base */ 79 80 struct an_pci_softc { 81 struct an_softc sc_an; /* real "an" softc */ 82 83 /* PCI-specific goo. */ 84 void *sc_ih; /* interrupt handle */ 85 }; 86 87 int an_pci_match __P((struct device *, struct cfdata *, void *)); 88 void an_pci_attach __P((struct device *, struct device *, void *)); 89 90 CFATTACH_DECL(an_pci, sizeof(struct an_pci_softc), 91 an_pci_match, an_pci_attach, NULL, NULL); 92 93 const struct an_pci_product { 94 u_int32_t app_vendor; /* PCI vendor ID */ 95 u_int32_t app_product; /* PCI product ID */ 96 } an_pci_products[] = { 97 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4xxx }, 98 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 }, 99 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 }, 100 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_350 }, 101 { 0, 0 } 102 }; 103 104 int 105 an_pci_match(struct device *parent, struct cfdata *match, void *aux) 106 { 107 struct pci_attach_args *pa = aux; 108 const struct an_pci_product *app; 109 110 for (app = an_pci_products; app->app_vendor != 0; app++) { 111 if (PCI_VENDOR(pa->pa_id) == app->app_vendor && 112 PCI_PRODUCT(pa->pa_id) == app->app_product) 113 return 1; 114 } 115 return 0; 116 } 117 118 void 119 an_pci_attach(struct device *parent, struct device *self, void *aux) 120 { 121 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 122 struct an_pci_softc *psc = (struct an_pci_softc *) self; 123 struct an_softc *sc = &psc->sc_an; 124 char devinfo[256]; 125 char const *intrstr; 126 pci_intr_handle_t ih; 127 u_int32_t csr; 128 129 aprint_naive(": 802.11 controller\n"); 130 131 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 132 aprint_normal(": %s\n", devinfo); 133 134 /* Map I/O registers */ 135 if (pci_mapreg_map(pa, AN_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, 136 &sc->an_btag, &sc->an_bhandle, NULL, NULL) != 0) { 137 aprint_error("%s: unable to map registers\n", self->dv_xname); 138 return; 139 } 140 141 /* Enable the device. */ 142 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 143 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 144 csr | PCI_COMMAND_MASTER_ENABLE); 145 146 /* Map and establish the interrupt. */ 147 if (pci_intr_map(pa, &ih)) { 148 aprint_error("%s: unable to map interrupt\n", self->dv_xname); 149 return; 150 } 151 intrstr = pci_intr_string(pa->pa_pc, ih); 152 psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, an_intr, sc); 153 if (psc->sc_ih == NULL) { 154 aprint_error("%s: unable to establish interrupt", 155 self->dv_xname); 156 if (intrstr != NULL) 157 aprint_normal(" at %s", intrstr); 158 aprint_normal("\n"); 159 return; 160 } 161 aprint_normal("%s: interrupting at %s\n", self->dv_xname, intrstr); 162 sc->sc_enabled = 1; 163 164 if (an_attach(sc) != 0) { 165 aprint_error("%s: failed to attach controller\n", 166 self->dv_xname); 167 pci_intr_disestablish(pa->pa_pc, psc->sc_ih); 168 bus_space_unmap(sc->an_btag, sc->an_bhandle, AN_IOSIZ); 169 } 170 } 171