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e09f49b6fa
problem. o Create new timeout routine so we don't detach the card inside a ISR but instead drop back to spl0 via a timeout of 0. o Actually delete the child of the pccard device rather than just faking it badly. o Fix sio, ed and ep to have pccard detach routines that are int rather than void. o Fix ep and ed pccard detach routines to use if_detach rather than just if_down. if_detach destroys the device, while if_down just marks it down. In this incarnation of the pccard things, we map the disable the slot action to detach the driver, which removes the driver from the device tree. When that is done, a panic would soon follow as the ifconfig tried to down the device. Didn't fix: o Should cache the pccard dev child's pointer in struct slot o remove now unused parts of struct slot o Any driver using softc after detach has been called. sio's softc used to be statically allocated, so you could check sc->gone, but that is now gone. o Didn't remove gone from softc of drivers that use the old pccard method. Didn't test: o ed driver changes o sio driver changes on pccards o suspend (no laptop or apm support on my desktop)
151 lines
4.1 KiB
C
151 lines
4.1 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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#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/ethernet.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_mib.h>
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#include <dev/ed/if_edvar.h>
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/*
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* PC-Card (PCMCIA) specific code.
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*/
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static int ed_pccard_probe(device_t);
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static int ed_pccard_attach(device_t);
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static int ed_pccard_detach(device_t);
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static device_method_t ed_pccard_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ed_pccard_probe),
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DEVMETHOD(device_attach, ed_pccard_attach),
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DEVMETHOD(device_detach, ed_pccard_detach),
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{ 0, 0 }
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};
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static driver_t ed_pccard_driver = {
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"ed",
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ed_pccard_methods,
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sizeof(struct ed_softc)
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};
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static devclass_t ed_pccard_devclass;
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DRIVER_MODULE(ed, pccard, ed_pccard_driver, ed_pccard_devclass, 0, 0);
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/*
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* ed_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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ed_pccard_detach(device_t dev)
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{
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struct ed_softc *sc = device_get_softc(dev);
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struct ifnet *ifp = &sc->arpcom.ac_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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ifp->if_flags &= ~IFF_RUNNING;
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if_detach(ifp);
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bus_teardown_intr(dev, sc->irq_res, &sc->irq_handle);
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sc->gone = 1;
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device_printf(dev, "unload\n");
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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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ed_pccard_probe(device_t dev)
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{
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int error;
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error = ed_probe_WD80x3(dev);
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if (error == 0)
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goto end;
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ed_release_resources(dev);
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error = ed_probe_Novell(dev);
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if (error == 0)
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goto end;
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ed_release_resources(dev);
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end:
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if (error == 0)
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error = ed_alloc_irq(dev, 0, 0);
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ed_release_resources(dev);
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return (error);
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}
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static int
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ed_pccard_attach(device_t dev)
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{
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struct ed_softc *sc = device_get_softc(dev);
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int flags = device_get_flags(dev);
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int error;
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if (sc->port_used > 0)
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ed_alloc_port(dev, sc->port_rid, sc->port_used);
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if (sc->mem_used)
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ed_alloc_memory(dev, sc->mem_rid, sc->mem_used);
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ed_alloc_irq(dev, sc->irq_rid, 0);
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error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
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edintr, sc, &sc->irq_handle);
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if (error) {
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printf("setup intr failed %d \n", error);
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ed_release_resources(dev);
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return (error);
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}
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error = ed_attach(sc, device_get_unit(dev), flags);
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return (error);
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}
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