if_an_pccard.c revision 67094
1/* 2 * Copyright (c) 1997, 1998, 1999 3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 * 32 * $FreeBSD: head/sys/dev/an/if_an_pccard.c 67094 2000-10-13 21:58:36Z wpaul $ 33 */ 34 35/* 36 * Aironet 4500/4800 802.11 PCMCIA/ISA/PCI driver for FreeBSD. 37 * 38 * Written by Bill Paul <wpaul@ctr.columbia.edu> 39 * Electrical Engineering Department 40 * Columbia University, New York City 41 */ 42 43#include "opt_inet.h" 44 45#ifdef INET 46#define ANCACHE 47#endif 48 49#include <sys/param.h> 50#include <sys/systm.h> 51#include <sys/socket.h> 52#include <sys/kernel.h> 53 54#include <sys/module.h> 55#include <sys/bus.h> 56#include <machine/bus.h> 57#include <sys/rman.h> 58#include <machine/mutex.h> 59#include <machine/resource.h> 60 61#include <net/if.h> 62#include <net/if_arp.h> 63#include <net/ethernet.h> 64#include <net/if_dl.h> 65#include <net/if_types.h> 66 67#include <dev/an/if_aironet_ieee.h> 68#include <dev/an/if_anreg.h> 69 70/* 71 * Support for PCMCIA cards. 72 */ 73static int an_pccard_probe(device_t); 74static int an_pccard_attach(device_t); 75static int an_pccard_detach(device_t); 76 77static device_method_t an_pccard_methods[] = { 78 /* Device interface */ 79 DEVMETHOD(device_probe, an_pccard_probe), 80 DEVMETHOD(device_attach, an_pccard_attach), 81 DEVMETHOD(device_detach, an_pccard_detach), 82 DEVMETHOD(device_shutdown, an_shutdown), 83 84 { 0, 0 } 85}; 86 87static driver_t an_pccard_driver = { 88 "an", 89 an_pccard_methods, 90 sizeof(struct an_softc) 91}; 92 93static devclass_t an_pccard_devclass; 94 95DRIVER_MODULE(if_an, pccard, an_pccard_driver, an_pccard_devclass, 0, 0); 96 97static int 98an_pccard_detach(device_t dev) 99{ 100 struct an_softc *sc = device_get_softc(dev); 101 struct ifnet *ifp = &sc->arpcom.ac_if; 102 103 if (sc->an_gone) { 104 device_printf(dev,"already unloaded\n"); 105 return(0); 106 } 107 an_stop(sc); 108 ifp->if_flags &= ~IFF_RUNNING; 109 ether_ifdetach(ifp, ETHER_BPF_SUPPORTED); 110 sc->an_gone = 1; 111 bus_teardown_intr(dev, sc->irq_res, sc->irq_handle); 112 an_release_resources(dev); 113 return (0); 114} 115 116static int 117an_pccard_probe(device_t dev) 118{ 119 int error; 120 121 error = an_probe(dev); /* 0 is failure for now */ 122 if (error != 0) { 123 device_set_desc(dev, "Aironet PC4500/PC4800"); 124 error = an_alloc_irq(dev, 0, 0); 125 } else 126 error = 1; 127 an_release_resources(dev); 128 return (error); 129} 130 131 132static int 133an_pccard_attach(device_t dev) 134{ 135 struct an_softc *sc = device_get_softc(dev); 136 int flags = device_get_flags(dev); 137 int error; 138 139 an_alloc_port(dev, sc->port_rid, AN_IOSIZ); 140 an_alloc_irq(dev, sc->irq_rid, 0); 141 142 error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET, 143 an_intr, sc, &sc->irq_handle); 144 if (error) { 145 printf("setup intr failed %d \n", error); 146 an_release_resources(dev); 147 return (error); 148 } 149 150 sc->an_bhandle = rman_get_bushandle(sc->port_res); 151 sc->an_btag = rman_get_bustag(sc->port_res); 152 153 error = an_attach(sc, device_get_unit(dev), flags); 154 return (error); 155} 156 157