| 1 | /* $NetBSD: if_an_pci.c,v 1.35 2014/03/29 19:28:24 christos 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 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | /* |
| 33 | * PCI bus front-end for the Aironet PC4500/PC4800 Wireless LAN Adapter. |
| 34 | * Unlike WaveLAN, this adapter attached as PCI device using a PLX 9050 |
| 35 | * PCI to "dumb bus" bridge chip. |
| 36 | */ |
| 37 | |
| 38 | #include <sys/cdefs.h> |
| 39 | __KERNEL_RCSID(0, "$NetBSD: if_an_pci.c,v 1.35 2014/03/29 19:28:24 christos Exp $" ); |
| 40 | |
| 41 | #include <sys/param.h> |
| 42 | #include <sys/systm.h> |
| 43 | #include <sys/mbuf.h> |
| 44 | #include <sys/malloc.h> |
| 45 | #include <sys/kernel.h> |
| 46 | #include <sys/socket.h> |
| 47 | #include <sys/ioctl.h> |
| 48 | #include <sys/errno.h> |
| 49 | #include <sys/device.h> |
| 50 | #include <sys/callout.h> |
| 51 | |
| 52 | #include <machine/endian.h> |
| 53 | |
| 54 | #include <net/if.h> |
| 55 | #include <net/if_dl.h> |
| 56 | #include <net/if_media.h> |
| 57 | #include <net/if_ether.h> |
| 58 | |
| 59 | #include <net80211/ieee80211_netbsd.h> |
| 60 | #include <net80211/ieee80211_var.h> |
| 61 | |
| 62 | #include <sys/bus.h> |
| 63 | #include <sys/intr.h> |
| 64 | |
| 65 | #include <dev/ic/anreg.h> |
| 66 | #include <dev/ic/anvar.h> |
| 67 | |
| 68 | #include <dev/pci/pcivar.h> |
| 69 | #include <dev/pci/pcireg.h> |
| 70 | #include <dev/pci/pcidevs.h> |
| 71 | |
| 72 | #define AN_PCI_PLX_IOBA 0x14 /* i/o base for PLX chip */ |
| 73 | #define AN_PCI_IOBA PCI_BAR(2) /* i/o base */ |
| 74 | |
| 75 | struct an_pci_softc { |
| 76 | struct an_softc sc_an; /* real "an" softc */ |
| 77 | pci_chipset_tag_t sc_pct; |
| 78 | pcitag_t sc_pcitag; |
| 79 | |
| 80 | /* PCI-specific goo. */ |
| 81 | void *sc_ih; /* interrupt handle */ |
| 82 | }; |
| 83 | |
| 84 | static int an_pci_match(device_t, cfdata_t, void *); |
| 85 | static void an_pci_attach(device_t, device_t, void *); |
| 86 | |
| 87 | CFATTACH_DECL_NEW(an_pci, sizeof(struct an_pci_softc), |
| 88 | an_pci_match, an_pci_attach, NULL, NULL); |
| 89 | |
| 90 | static const struct an_pci_product { |
| 91 | u_int32_t app_vendor; /* PCI vendor ID */ |
| 92 | u_int32_t app_product; /* PCI product ID */ |
| 93 | } an_pci_products[] = { |
| 94 | { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4xxx }, |
| 95 | { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 }, |
| 96 | { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 }, |
| 97 | { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PCI350 }, |
| 98 | { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_MPI350 }, |
| 99 | { 0, 0 } |
| 100 | }; |
| 101 | |
| 102 | static int |
| 103 | an_pci_match(device_t parent, cfdata_t match, void *aux) |
| 104 | { |
| 105 | struct pci_attach_args *pa = aux; |
| 106 | const struct an_pci_product *app; |
| 107 | |
| 108 | for (app = an_pci_products; app->app_vendor != 0; app++) { |
| 109 | if (PCI_VENDOR(pa->pa_id) == app->app_vendor && |
| 110 | PCI_PRODUCT(pa->pa_id) == app->app_product) |
| 111 | return 1; |
| 112 | } |
| 113 | return 0; |
| 114 | } |
| 115 | |
| 116 | static void |
| 117 | an_pci_attach(device_t parent, device_t self, void *aux) |
| 118 | { |
| 119 | struct pci_attach_args *pa = (struct pci_attach_args *)aux; |
| 120 | struct an_pci_softc *psc = device_private(self); |
| 121 | struct an_softc *sc = &psc->sc_an; |
| 122 | char const *intrstr; |
| 123 | pci_intr_handle_t ih; |
| 124 | bus_size_t iosize; |
| 125 | u_int32_t csr; |
| 126 | char intrbuf[PCI_INTRSTR_LEN]; |
| 127 | |
| 128 | sc->sc_dev = self; |
| 129 | psc->sc_pct = pa->pa_pc; |
| 130 | psc->sc_pcitag = pa->pa_tag; |
| 131 | |
| 132 | pci_aprint_devinfo(pa, "802.11 controller" ); |
| 133 | |
| 134 | /* Map I/O registers */ |
| 135 | if (pci_mapreg_map(pa, AN_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, |
| 136 | &sc->sc_iot, &sc->sc_ioh, NULL, &iosize) != 0) { |
| 137 | aprint_error_dev(self, "unable to map registers\n" ); |
| 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_dev(self, "unable to map interrupt\n" ); |
| 149 | return; |
| 150 | } |
| 151 | intrstr = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf)); |
| 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_dev(self, "unable to establish interrupt" ); |
| 155 | if (intrstr != NULL) |
| 156 | aprint_error(" at %s" , intrstr); |
| 157 | aprint_error("\n" ); |
| 158 | return; |
| 159 | } |
| 160 | aprint_normal_dev(self, "interrupting at %s\n" , intrstr); |
| 161 | sc->sc_enabled = 1; |
| 162 | |
| 163 | if (an_attach(sc) != 0) { |
| 164 | aprint_error_dev(self, "failed to attach controller\n" ); |
| 165 | pci_intr_disestablish(pa->pa_pc, psc->sc_ih); |
| 166 | bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize); |
| 167 | } |
| 168 | |
| 169 | if (pmf_device_register(self, NULL, NULL)) |
| 170 | pmf_class_network_register(self, &sc->sc_if); |
| 171 | else |
| 172 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 173 | } |
| 174 | |