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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
*
* 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/module.h>
#include <sys/bus.h>
#include <machine/bus.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>
/*
* 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);
/*
* snc_pccard_detach - unload the driver and clear the table.
* XXX TODO:
* This is usually called when the card is ejected, but
* can be caused by a modunload of a controller driver.
* The idea is to reset the driver's view of the device
* and ensure that any driver entry points such as
* read and write do not hang.
*/
static int
snc_pccard_detach(device_t dev)
{
struct snc_softc *sc = device_get_softc(dev);
struct ifnet *ifp = &sc->sc_if;
if (sc->gone) {
device_printf(dev, "already unloaded\n");
return (0);
}
sncshutdown(sc);
ifp->if_flags &= ~IFF_RUNNING;
if_detach(ifp);
sc->gone = 1;
bus_teardown_intr(dev, sc->irq, sc->irq_handle);
snc_release_resources(dev);
return (0);
}
/*
* Probe framework for pccards. Replicates the standard framework,
* minus the pccard driver registration and ignores the ether address
* supplied (from the CIS), relying on the probe to find it instead.
*/
static int
snc_pccard_probe(device_t dev)
{
int error;
error = snc_alloc_port(dev, 0);
error = max(error, snc_alloc_memory(dev, 0));
error = max(error, snc_alloc_irq(dev, 0, 0));
if (!error && !snc_probe(dev, SNEC_TYPE_PNP))
error = ENOENT;
snc_release_resources(dev);
return (error);
}
static int
snc_pccard_attach(device_t dev)
{
struct snc_softc *sc = device_get_softc(dev);
int error;
bzero(sc, sizeof(struct snc_softc));
snc_alloc_port(dev, 0);
snc_alloc_memory(dev, 0);
snc_alloc_irq(dev, 0, 0);
error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
sncintr, sc, &sc->irq_handle);
if (error) {
printf("snc_isa_attach: bus_setup_intr() failed\n");
snc_release_resources(dev);
return (error);
}
/* This interface is always enabled. */
sc->sc_enabled = 1;
/* pccard_get_ether(dev, ether_addr); */
return snc_attach(dev);
}
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