1/* 2 * Copyright (c) 1995, David Greenman 3 * 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 unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 *
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32/* 33 * National Semiconductor DP8393X SONIC Driver 34 * 35 * This is the PC-Card attachment on FreeBSD 36 * written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp> and 37 * Hiroshi Yamashita <bluemoon@msj.biglobe.ne.jp> 38 */ 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/socket.h> 43#include <sys/kernel.h> 44 45#include <sys/module.h> 46#include <sys/bus.h> 47#include <machine/bus.h> 48 49#include <net/if.h> 50#include <net/if_arp.h> 51#include <net/if_media.h> 52 53 54#include <dev/snc/dp83932var.h> 55#include <dev/snc/if_sncvar.h> 56#include <dev/snc/if_sncreg.h> 57 58/* 59 * PC-Card (PCMCIA) specific code. 60 */ 61static int snc_pccard_probe(device_t); 62static int snc_pccard_attach(device_t); 63static int snc_pccard_detach(device_t); 64 65 66static device_method_t snc_pccard_methods[] = { 67 /* Device interface */ 68 DEVMETHOD(device_probe, snc_pccard_probe), 69 DEVMETHOD(device_attach, snc_pccard_attach), 70 DEVMETHOD(device_detach, snc_pccard_detach), 71 72 { 0, 0 } 73}; 74 75static driver_t snc_pccard_driver = { 76 "snc", 77 snc_pccard_methods, 78 sizeof(struct snc_softc) 79}; 80 81DRIVER_MODULE(snc, pccard, snc_pccard_driver, snc_devclass, 0, 0); 82MODULE_DEPEND(snc, ether, 1, 1, 1); 83MODULE_DEPEND(snc, pccard, 1, 1, 1); 84 85/* 86 * snc_pccard_detach - unload the driver and clear the table. 87 * XXX TODO: 88 * This is usually called when the card is ejected, but 89 * can be caused by a modunload of a controller driver. 90 * The idea is to reset the driver's view of the device 91 * and ensure that any driver entry points such as 92 * read and write do not hang. 93 */ 94static int 95snc_pccard_detach(device_t dev) 96{ 97 struct snc_softc *sc = device_get_softc(dev); 98 struct ifnet *ifp = &sc->sc_if; 99 100 if (sc->gone) { 101 device_printf(dev, "already unloaded\n"); 102 return (0); 103 } 104 sncshutdown(sc); 105 ifp->if_flags &= ~IFF_RUNNING; 106 if_detach(ifp); 107 sc->gone = 1; 108 bus_teardown_intr(dev, sc->irq, sc->irq_handle); 109 snc_release_resources(dev); 110 return (0); 111} 112 113/* 114 * Probe framework for pccards. Replicates the standard framework, 115 * minus the pccard driver registration and ignores the ether address 116 * supplied (from the CIS), relying on the probe to find it instead. 117 */ 118static int 119snc_pccard_probe(device_t dev) 120{ 121 int error; 122 123 error = snc_alloc_port(dev, 0); 124 error = max(error, snc_alloc_memory(dev, 0)); 125 error = max(error, snc_alloc_irq(dev, 0, 0)); 126 127 if (!error && !snc_probe(dev, SNEC_TYPE_PNP)) 128 error = ENOENT; 129 130 snc_release_resources(dev); 131 return (error); 132} 133 134static int 135snc_pccard_attach(device_t dev) 136{ 137 struct snc_softc *sc = device_get_softc(dev); 138 int error; 139 140 bzero(sc, sizeof(struct snc_softc)); 141 142 snc_alloc_port(dev, 0); 143 snc_alloc_memory(dev, 0); 144 snc_alloc_irq(dev, 0, 0); 145 146 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, 147 sncintr, sc, &sc->irq_handle); 148 if (error) { 149 printf("snc_isa_attach: bus_setup_intr() failed\n"); 150 snc_release_resources(dev); 151 return (error); 152 } 153 154 /* This interface is always enabled. */ 155 sc->sc_enabled = 1; 156 157 /* pccard_get_ether(dev, ether_addr); */ 158 159 return snc_attach(dev); 160}
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