freebsd-dev/sys/dev/cm/if_cm_isa.c
2010-03-01 16:52:11 +00:00

162 lines
4.1 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.
*
* 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 <sys/rman.h>
#include <machine/resource.h>
#include <net/if.h>
#include <net/if_arc.h>
#include <dev/cm/smc90cx6reg.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 rid;
rid = 0;
sc->port_res = bus_alloc_resource(
dev, SYS_RES_IOPORT, &rid, 0ul, ~0ul, CM_IO_PORTS, RF_ACTIVE);
if (sc->port_res == NULL)
return (ENOENT);
if (GETREG(CMSTAT) == 0xff) {
cm_release_resources(dev);
return (ENXIO);
}
rid = 0;
sc->mem_res = bus_alloc_resource(
dev, SYS_RES_MEMORY, &rid, 0ul, ~0ul, CM_MEM_SIZE, RF_ACTIVE);
if (sc->mem_res == NULL) {
cm_release_resources(dev);
return (ENOENT);
}
rid = 0;
sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
if (sc->irq_res == NULL) {
cm_release_resources(dev);
return (ENOENT);
}
return (0);
}
static int
cm_isa_attach(dev)
device_t dev;
{
struct cm_softc *sc = device_get_softc(dev);
int error;
/* init mtx and setup interrupt */
mtx_init(&sc->sc_mtx, device_get_nameunit(dev),
MTX_NETWORK_LOCK, MTX_DEF);
error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
NULL, cmintr, sc, &sc->irq_handle);
if (error)
goto err;
/* attach */
error = cm_attach(dev);
if (error)
goto err;
return 0;
err:
mtx_destroy(&sc->sc_mtx);
cm_release_resources(dev);
return (error);
}
static int
cm_isa_detach(device_t dev)
{
struct cm_softc *sc = device_get_softc(dev);
struct ifnet *ifp = sc->sc_ifp;
/* stop and detach */
CM_LOCK(sc);
cm_stop_locked(sc);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
CM_UNLOCK(sc);
callout_drain(&sc->sc_recon_ch);
arc_ifdetach(ifp);
/* teardown interrupt, destroy mtx and release resources */
bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
mtx_destroy(&sc->sc_mtx);
if_free(ifp);
cm_release_resources(dev);
bus_generic_detach(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);