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157 lines
4.3 KiB
C
157 lines
4.3 KiB
C
/*
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* Copyright (c) 1995, David Greenman
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* National Semiconductor DP8393X SONIC Driver
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*
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* This is the PC-Card attachment on FreeBSD
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* written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp> and
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* Hiroshi Yamashita <bluemoon@msj.biglobe.ne.jp>
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_media.h>
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#include <dev/snc/dp83932var.h>
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#include <dev/snc/if_sncvar.h>
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#include <dev/snc/if_sncreg.h>
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/*
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* PC-Card (PCMCIA) specific code.
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*/
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static int snc_pccard_probe(device_t);
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static int snc_pccard_attach(device_t);
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static int snc_pccard_detach(device_t);
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static device_method_t snc_pccard_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, snc_pccard_probe),
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DEVMETHOD(device_attach, snc_pccard_attach),
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DEVMETHOD(device_detach, snc_pccard_detach),
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{ 0, 0 }
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};
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static driver_t snc_pccard_driver = {
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"snc",
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snc_pccard_methods,
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sizeof(struct snc_softc)
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};
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DRIVER_MODULE(if_snc, pccard, snc_pccard_driver, snc_devclass, 0, 0);
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/*
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* snc_pccard_detach - unload the driver and clear the table.
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* XXX TODO:
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* This is usually called when the card is ejected, but
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* can be caused by a modunload of a controller driver.
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* The idea is to reset the driver's view of the device
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* and ensure that any driver entry points such as
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* read and write do not hang.
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*/
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static int
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snc_pccard_detach(device_t dev)
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{
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struct snc_softc *sc = device_get_softc(dev);
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struct ifnet *ifp = &sc->sc_if;
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if (sc->gone) {
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device_printf(dev, "already unloaded\n");
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return (0);
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}
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sncshutdown(sc);
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ifp->if_flags &= ~IFF_RUNNING;
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if_detach(ifp);
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sc->gone = 1;
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bus_teardown_intr(dev, sc->irq, sc->irq_handle);
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snc_release_resources(dev);
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return (0);
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}
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/*
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* Probe framework for pccards. Replicates the standard framework,
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* minus the pccard driver registration and ignores the ether address
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* supplied (from the CIS), relying on the probe to find it instead.
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*/
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static int
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snc_pccard_probe(device_t dev)
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{
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int error;
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error = snc_alloc_port(dev, 0);
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error = max(error, snc_alloc_memory(dev, 0));
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error = max(error, snc_alloc_irq(dev, 0, 0));
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if (!error && !snc_probe(dev, SNEC_TYPE_PNP))
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error = ENOENT;
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snc_release_resources(dev);
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return (error);
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}
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static int
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snc_pccard_attach(device_t dev)
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{
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struct snc_softc *sc = device_get_softc(dev);
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int error;
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bzero(sc, sizeof(struct snc_softc));
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snc_alloc_port(dev, 0);
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snc_alloc_memory(dev, 0);
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snc_alloc_irq(dev, 0, 0);
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error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
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sncintr, sc, &sc->irq_handle);
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if (error) {
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printf("snc_isa_attach: bus_setup_intr() failed\n");
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snc_release_resources(dev);
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return (error);
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}
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/* This interface is always enabled. */
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sc->sc_enabled = 1;
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/* pccard_get_ether(dev, ether_addr); */
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return snc_attach(dev);
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}
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