1 /* $OpenBSD: if_an_pci.c,v 1.17 2009/03/29 21:53:52 sthen Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998, 1999 5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: src/sys/dev/an/if_an_pci.c,v 1.1 2000/01/14 20:40:56 wpaul Exp $ 35 */ 36 37 /* 38 * This is a PCI shim for the Aironet PC4500/4800 wireless network 39 * driver. Aironet makes PCMCIA, ISA and PCI versions of these devices, 40 * which all have basically the same interface. The ISA and PCI cards 41 * are actually bridge adapters with PCMCIA cards inserted into them, 42 * however they appear as normal PCI or ISA devices to the host. 43 * 44 * All we do here is handle the PCI match and attach and set up an 45 * interrupt handler entry point. The PCI version of the card uses 46 * a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with 47 * multiple PCI address space mappings. The primary mapping at PCI 48 * register 0x14 is for the PLX chip itself, *NOT* the Aironet card. 49 * The I/O address of the Aironet is actually at register 0x18, which 50 * is the local bus mapping register for bus space 0. There are also 51 * registers for additional register spaces at registers 0x1C and 52 * 0x20, but these are unused in the Aironet devices. To find out 53 * more, you need a datasheet for the 9050 from PLX, but you have 54 * to go through their sales office to get it. Bleh. 55 */ 56 57 #include <sys/param.h> 58 #include <sys/systm.h> 59 #include <sys/device.h> 60 #include <sys/timeout.h> 61 #include <sys/socket.h> 62 #include <sys/tree.h> 63 64 #include <net/if.h> 65 #include <net/if_dl.h> 66 #include <net/if_media.h> 67 68 #include <netinet/in.h> 69 #include <netinet/if_ether.h> 70 71 #include <net80211/ieee80211_radiotap.h> 72 #include <net80211/ieee80211_var.h> 73 74 #include <machine/bus.h> 75 #include <machine/intr.h> 76 77 #include <dev/pci/pcireg.h> 78 #include <dev/pci/pcivar.h> 79 #include <dev/pci/pcidevs.h> 80 81 #include <dev/ic/anreg.h> 82 #include <dev/ic/anvar.h> 83 84 #define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */ 85 #define AN_PCI_LOIO 0x18 /* Aironet iobase */ 86 87 int an_pci_match(struct device *, void *, void *); 88 void an_pci_attach(struct device *, struct device *, void *); 89 90 struct cfattach an_pci_ca = { 91 sizeof (struct an_softc), an_pci_match, an_pci_attach 92 }; 93 94 const struct pci_matchid an_pci_devices[] = { 95 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PCI352 }, 96 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 }, 97 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 }, 98 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800_1 }, 99 }; 100 101 int 102 an_pci_match(struct device *parent, void *match, void *aux) 103 { 104 return (pci_matchbyid((struct pci_attach_args *)aux, an_pci_devices, 105 sizeof(an_pci_devices)/sizeof(an_pci_devices[0]))); 106 } 107 108 void 109 an_pci_attach(struct device *parent, struct device *self, void *aux) 110 { 111 struct an_softc *sc = (struct an_softc *)self; 112 struct pci_attach_args *pa = aux; 113 pci_intr_handle_t ih; 114 bus_space_handle_t ioh; 115 bus_space_tag_t iot = pa->pa_iot; 116 pci_chipset_tag_t pc = pa->pa_pc; 117 const char *intrstr; 118 119 /* Map the I/O ports. */ 120 if (pci_mapreg_map(pa, AN_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 121 &iot, &ioh, NULL, NULL, 0) != 0) { 122 printf(": can't map i/o space\n"); 123 return; 124 } 125 sc->sc_iot = iot; 126 sc->sc_ioh = ioh; 127 128 /* Map and establish the interrupt. */ 129 if (pci_intr_map(pa, &ih)) { 130 printf("\n%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 131 return; 132 } 133 intrstr = pci_intr_string(pc, ih); 134 sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, an_intr, sc, 135 sc->sc_dev.dv_xname); 136 if (sc->sc_ih == NULL) { 137 printf("\n%s: couldn't establish interrupt", 138 sc->sc_dev.dv_xname); 139 if (intrstr != NULL) 140 printf(" at %s", intrstr); 141 printf("\n"); 142 return; 143 } 144 printf(": %s", intrstr); 145 146 sc->sc_enabled = 1; 147 148 an_attach(sc); 149 } 150