1 /* $NetBSD: if_an_pci.c,v 1.24 2007/12/09 20:28:08 jmcneill 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 1.24 2007/12/09 20:28:08 jmcneill 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 82 struct an_pci_softc { 83 struct an_softc sc_an; /* real "an" softc */ 84 pci_chipset_tag_t sc_pct; 85 pcitag_t sc_pcitag; 86 87 /* PCI-specific goo. */ 88 void *sc_ih; /* interrupt handle */ 89 }; 90 91 static int an_pci_match(struct device *, struct cfdata *, void *); 92 static void an_pci_attach(struct device *, struct device *, void *); 93 94 CFATTACH_DECL(an_pci, sizeof(struct an_pci_softc), 95 an_pci_match, an_pci_attach, NULL, NULL); 96 97 static const struct an_pci_product { 98 u_int32_t app_vendor; /* PCI vendor ID */ 99 u_int32_t app_product; /* PCI product ID */ 100 } an_pci_products[] = { 101 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4xxx }, 102 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 }, 103 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 }, 104 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PCI350 }, 105 { 0, 0 } 106 }; 107 108 static int 109 an_pci_match(struct device *parent, struct cfdata *match, 110 void *aux) 111 { 112 struct pci_attach_args *pa = aux; 113 const struct an_pci_product *app; 114 115 for (app = an_pci_products; app->app_vendor != 0; app++) { 116 if (PCI_VENDOR(pa->pa_id) == app->app_vendor && 117 PCI_PRODUCT(pa->pa_id) == app->app_product) 118 return 1; 119 } 120 return 0; 121 } 122 123 static void 124 an_pci_attach(struct device *parent, struct device *self, void *aux) 125 { 126 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 127 struct an_pci_softc *psc = (struct an_pci_softc *) self; 128 struct an_softc *sc = &psc->sc_an; 129 char devinfo[256]; 130 char const *intrstr; 131 pci_intr_handle_t ih; 132 bus_size_t iosize; 133 u_int32_t csr; 134 135 psc->sc_pct = pa->pa_pc; 136 psc->sc_pcitag = pa->pa_tag; 137 138 aprint_naive(": 802.11 controller\n"); 139 140 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 141 aprint_normal(": %s\n", devinfo); 142 143 /* Map I/O registers */ 144 if (pci_mapreg_map(pa, AN_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, 145 &sc->sc_iot, &sc->sc_ioh, NULL, &iosize) != 0) { 146 aprint_error("%s: unable to map registers\n", self->dv_xname); 147 return; 148 } 149 150 /* Enable the device. */ 151 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 152 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 153 csr | PCI_COMMAND_MASTER_ENABLE); 154 155 /* Map and establish the interrupt. */ 156 if (pci_intr_map(pa, &ih)) { 157 aprint_error("%s: unable to map interrupt\n", self->dv_xname); 158 return; 159 } 160 intrstr = pci_intr_string(pa->pa_pc, ih); 161 psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, an_intr, sc); 162 if (psc->sc_ih == NULL) { 163 aprint_error("%s: unable to establish interrupt", 164 self->dv_xname); 165 if (intrstr != NULL) 166 aprint_normal(" at %s", intrstr); 167 aprint_normal("\n"); 168 return; 169 } 170 aprint_normal("%s: interrupting at %s\n", self->dv_xname, intrstr); 171 sc->sc_enabled = 1; 172 173 if (an_attach(sc) != 0) { 174 aprint_error("%s: failed to attach controller\n", 175 self->dv_xname); 176 pci_intr_disestablish(pa->pa_pc, psc->sc_ih); 177 bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize); 178 } 179 180 if (!pmf_device_register(self, NULL, NULL)) 181 aprint_error_dev(self, "couldn't establish power handler\n"); 182 else 183 pmf_class_network_register(self, &sc->sc_if); 184 } 185