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fbfb97942e
there's not dependencies on pccard symboles, such a dependency is not necessary. This means that drivers that have multiple attachments can not drag bogus devices into the kernel at load time. We can't (yet) do this with pci and isa. Drivers written for them actually do seem to have symbols that depend on these busses' implementation code. ndis not touched until other things can be tested.
160 lines
4.3 KiB
C
160 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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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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(snc, pccard, snc_pccard_driver, snc_devclass, 0, 0);
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MODULE_DEPEND(snc, ether, 1, 1, 1);
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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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