freebsd-skq/sys/dev/cm/if_cm_isa.c
brooks 567ba9b00a Stop embedding struct ifnet at the top of driver softcs. Instead the
struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.

This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.

Other changes of note:
 - Struct arpcom is no longer referenced in normal interface code.
   Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
   To enforce this ac_enaddr has been renamed to _ac_enaddr.
 - The second argument to ether_ifattach is now always the mac address
   from driver private storage rather than sometimes being ac_enaddr.

Reviewed by:	sobomax, sam
2005-06-10 16:49:24 +00:00

140 lines
3.8 KiB
C

/* $NetBSD: if_bah_zbus.c,v 1.6 2000/01/23 21:06:12 aymeric Exp $ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*-
* Copyright (c) 1994, 1995, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ignatios Souvatzis.
*
* 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, 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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/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_arc.h>
#include <dev/cm/smc90cx6var.h>
static int cm_isa_probe (device_t);
static int cm_isa_attach (device_t);
static int
cm_isa_probe(dev)
device_t dev;
{
struct cm_softc *sc = device_get_softc(dev);
int error;
bzero(sc, sizeof(struct cm_softc));
error = cm_probe(dev);
if (error == 0)
goto end;
end:
if (error == 0)
error = cm_alloc_irq(dev, 0);
cm_release_resources(dev);
return (error);
}
static int
cm_isa_attach(dev)
device_t dev;
{
struct cm_softc *sc = device_get_softc(dev);
int error;
cm_alloc_port(dev, sc->port_rid, sc->port_used);
cm_alloc_memory(dev, sc->mem_rid, sc->mem_used);
cm_alloc_irq(dev, sc->irq_rid);
error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
cmintr, sc, &sc->irq_handle);
if (error) {
cm_release_resources(dev);
return (error);
}
return cm_attach(dev);
}
static int
cm_isa_detach(device_t dev)
{
struct cm_softc *sc = device_get_softc(dev);
struct ifnet *ifp = sc->sc_ifp;
int s;
cm_stop(sc);
ifp->if_flags &= ~IFF_RUNNING;
s = splimp();
arc_ifdetach(ifp);
if_free(ifp);
splx(s);
bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
cm_release_resources(dev);
return (0);
}
static device_method_t cm_isa_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, cm_isa_probe),
DEVMETHOD(device_attach, cm_isa_attach),
DEVMETHOD(device_detach, cm_isa_detach),
{ 0, 0 }
};
static driver_t cm_isa_driver = {
"cm",
cm_isa_methods,
sizeof(struct cm_softc)
};
DRIVER_MODULE(cm, isa, cm_isa_driver, cm_devclass, 0, 0);
MODULE_DEPEND(cm, isa, 1, 1, 1);