if_an_pccard.c revision 67365
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 67365 2000-10-20 07:58:15Z jhb $ 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 <sys/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#ifndef lint 68static const char rcsid[] = 69 "$FreeBSD: head/sys/dev/an/if_an_pccard.c 67365 2000-10-20 07:58:15Z jhb $"; 70#endif 71 72#include <dev/an/if_aironet_ieee.h> 73#include <dev/an/if_anreg.h> 74 75/* 76 * Support for PCMCIA cards. 77 */ 78static int an_pccard_probe(device_t); 79static int an_pccard_attach(device_t); 80static int an_pccard_detach(device_t); 81 82static device_method_t an_pccard_methods[] = { 83 /* Device interface */ 84 DEVMETHOD(device_probe, an_pccard_probe), 85 DEVMETHOD(device_attach, an_pccard_attach), 86 DEVMETHOD(device_detach, an_pccard_detach), 87 DEVMETHOD(device_shutdown, an_shutdown), 88 89 { 0, 0 } 90}; 91 92static driver_t an_pccard_driver = { 93 "an", 94 an_pccard_methods, 95 sizeof(struct an_softc) 96}; 97 98static devclass_t an_pccard_devclass; 99 100DRIVER_MODULE(if_an, pccard, an_pccard_driver, an_pccard_devclass, 0, 0); 101 102static int 103an_pccard_detach(device_t dev) 104{ 105 struct an_softc *sc = device_get_softc(dev); 106 struct ifnet *ifp = &sc->arpcom.ac_if; 107 108 if (sc->an_gone) { 109 device_printf(dev,"already unloaded\n"); 110 return(0); 111 } 112 an_stop(sc); 113 ifp->if_flags &= ~IFF_RUNNING; 114 ether_ifdetach(ifp, ETHER_BPF_SUPPORTED); 115 sc->an_gone = 1; 116 bus_teardown_intr(dev, sc->irq_res, sc->irq_handle); 117 an_release_resources(dev); 118 return (0); 119} 120 121static int 122an_pccard_probe(device_t dev) 123{ 124 int error; 125 126 error = an_probe(dev); /* 0 is failure for now */ 127 if (error != 0) { 128 device_set_desc(dev, "Aironet PC4500/PC4800"); 129 error = an_alloc_irq(dev, 0, 0); 130 } else 131 error = 1; 132 an_release_resources(dev); 133 return (error); 134} 135 136 137static int 138an_pccard_attach(device_t dev) 139{ 140 struct an_softc *sc = device_get_softc(dev); 141 int flags = device_get_flags(dev); 142 int error; 143 144 an_alloc_port(dev, sc->port_rid, AN_IOSIZ); 145 an_alloc_irq(dev, sc->irq_rid, 0); 146 147 error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET, 148 an_intr, sc, &sc->irq_handle); 149 if (error) { 150 printf("setup intr failed %d \n", error); 151 an_release_resources(dev); 152 return (error); 153 } 154 155 sc->an_bhandle = rman_get_bushandle(sc->port_res); 156 sc->an_btag = rman_get_bustag(sc->port_res); 157 sc->an_dev = dev; 158 159 error = an_attach(sc, device_get_unit(dev), flags); 160 return (error); 161} 162 163