freebsd-dev/sys/dev/snc/if_snc_pccard.c

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/*-
* Copyright (c) 1995, David Greenman
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* National Semiconductor DP8393X SONIC Driver
*
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* This is the PC Card attachment on FreeBSD
* written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp> and
* Hiroshi Yamashita <bluemoon@msj.biglobe.ne.jp>
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_media.h>
#include <dev/snc/dp83932var.h>
#include <dev/snc/if_sncvar.h>
#include <dev/snc/if_sncreg.h>
#include <dev/pccard/pccardvar.h>
#include <dev/pccard/pccard_cis.h>
#include "pccarddevs.h"
static const struct pccard_product snc_pccard_products[] = {
PCMCIA_CARD(NEC, PC9801N_J02),
PCMCIA_CARD(NEC, PC9801N_J02R),
{ NULL }
};
/*
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* PC Card (PCMCIA) specific code.
*/
static int snc_pccard_probe(device_t);
static int snc_pccard_attach(device_t);
static int snc_pccard_detach(device_t);
static device_method_t snc_pccard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, snc_pccard_probe),
DEVMETHOD(device_attach, snc_pccard_attach),
DEVMETHOD(device_detach, snc_pccard_detach),
{ 0, 0 }
};
static driver_t snc_pccard_driver = {
"snc",
snc_pccard_methods,
sizeof(struct snc_softc)
};
DRIVER_MODULE(snc, pccard, snc_pccard_driver, snc_devclass, 0, 0);
MODULE_DEPEND(snc, ether, 1, 1, 1);
/*
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* snc_pccard_detach - detach this instance from the device.
*/
static int
snc_pccard_detach(device_t dev)
{
struct snc_softc *sc = device_get_softc(dev);
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struct ifnet *ifp = sc->sc_ifp;
if (sc->gone) {
device_printf(dev, "already unloaded\n");
return (0);
}
SNC_LOCK(sc);
sncshutdown(sc);
SNC_UNLOCK(sc);
callout_drain(&sc->sc_timer);
ether_ifdetach(ifp);
sc->gone = 1;
bus_teardown_intr(dev, sc->irq, sc->irq_handle);
snc_release_resources(dev);
mtx_destroy(&sc->sc_lock);
return (0);
}
/*
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* Probe the pccard.
*/
static int
snc_pccard_probe(device_t dev)
{
const struct pccard_product *pp;
if ((pp = pccard_product_lookup(dev, snc_pccard_products,
sizeof(snc_pccard_products[0]), NULL)) == NULL)
return (EIO);
if (pp->pp_name != NULL)
device_set_desc(dev, pp->pp_name);
return (0);
}
static int
snc_pccard_attach(device_t dev)
{
struct snc_softc *sc = device_get_softc(dev);
int error;
/*
* Not sure that this belongs here or in snc_pccard_attach
*/
if ((error = snc_alloc_port(dev, 0)) != 0)
goto err;
if ((error = snc_alloc_memory(dev, 0)) != 0)
goto err;
if ((error = snc_alloc_irq(dev, 0, 0)) != 0)
goto err;
if ((error = snc_probe(dev, SNEC_TYPE_PNP)) != 0)
goto err;
/* This interface is always enabled. */
sc->sc_enabled = 1;
/* pccard_get_ether(dev, ether_addr); */
if ((error = snc_attach(dev)) != 0)
goto err;
return 0;
err:;
snc_release_resources(dev);
return error;
}