FreeBSD-5.3/sys/dev/gem/if_gem_pci.c
/*
* Copyright (C) 2001 Eduardo Horvath.
* 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, 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 ``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 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.
*
* from: NetBSD: if_gem_pci.c,v 1.7 2001/10/18 15:09:15 thorpej Exp
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/sys/dev/gem/if_gem_pci.c,v 1.16 2004/06/03 06:09:59 phk Exp $");
/*
* PCI bindings for Sun GEM ethernet controllers.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <machine/endian.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <dev/ofw/openfirm.h>
#include <machine/ofw_machdep.h>
#include <sys/rman.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/gem/if_gemreg.h>
#include <dev/gem/if_gemvar.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include "miibus_if.h"
struct gem_pci_softc {
struct gem_softc gsc_gem; /* GEM device */
struct resource *gsc_sres;
int gsc_srid;
struct resource *gsc_ires;
int gsc_irid;
void *gsc_ih;
};
static int gem_pci_probe(device_t);
static int gem_pci_attach(device_t);
static int gem_pci_detach(device_t);
static int gem_pci_suspend(device_t);
static int gem_pci_resume(device_t);
static device_method_t gem_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, gem_pci_probe),
DEVMETHOD(device_attach, gem_pci_attach),
DEVMETHOD(device_detach, gem_pci_detach),
DEVMETHOD(device_suspend, gem_pci_suspend),
DEVMETHOD(device_resume, gem_pci_resume),
/* Use the suspend handler here, it is all that is required. */
DEVMETHOD(device_shutdown, gem_pci_suspend),
/* bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_driver_added, bus_generic_driver_added),
/* MII interface */
DEVMETHOD(miibus_readreg, gem_mii_readreg),
DEVMETHOD(miibus_writereg, gem_mii_writereg),
DEVMETHOD(miibus_statchg, gem_mii_statchg),
{ 0, 0 }
};
static driver_t gem_pci_driver = {
"gem",
gem_pci_methods,
sizeof(struct gem_pci_softc)
};
DRIVER_MODULE(gem, pci, gem_pci_driver, gem_devclass, 0, 0);
MODULE_DEPEND(gem, pci, 1, 1, 1);
MODULE_DEPEND(gem, ether, 1, 1, 1);
struct gem_pci_dev {
u_int32_t gpd_devid;
int gpd_variant;
char *gpd_desc;
} gem_pci_devlist[] = {
{ 0x1101108e, GEM_SUN_GEM, "Sun ERI 10/100 Ethernet Adaptor" },
{ 0x2bad108e, GEM_SUN_GEM, "Sun GEM Gigabit Ethernet Adaptor" },
{ 0x0021106b, GEM_APPLE_GMAC, "Apple GMAC Ethernet Adaptor" },
{ 0x0024106b, GEM_APPLE_GMAC, "Apple GMAC2 Ethernet Adaptor" },
{ 0x0032106b, GEM_APPLE_GMAC, "Apple GMAC3 Ethernet Adaptor" },
{ 0, 0, NULL }
};
/*
* Attach routines need to be split out to different bus-specific files.
*/
static int
gem_pci_probe(dev)
device_t dev;
{
int i;
u_int32_t devid;
struct gem_pci_softc *gsc;
devid = pci_get_devid(dev);
for (i = 0; gem_pci_devlist[i].gpd_desc != NULL; i++) {
if (devid == gem_pci_devlist[i].gpd_devid) {
device_set_desc(dev, gem_pci_devlist[i].gpd_desc);
gsc = device_get_softc(dev);
gsc->gsc_gem.sc_variant =
gem_pci_devlist[i].gpd_variant;
return (0);
}
}
return (ENXIO);
}
static int
gem_pci_attach(dev)
device_t dev;
{
struct gem_pci_softc *gsc = device_get_softc(dev);
struct gem_softc *sc = &gsc->gsc_gem;
pci_enable_busmaster(dev);
/*
* Some Sun GEMs/ERIs do have their intpin register bogusly set to 0,
* although it should be 1. correct that.
*/
if (pci_get_intpin(dev) == 0)
pci_set_intpin(dev, 1);
sc->sc_dev = dev;
sc->sc_pci = 1; /* XXX */
gsc->gsc_srid = PCI_GEM_BASEADDR;
gsc->gsc_sres = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&gsc->gsc_srid, RF_ACTIVE);
if (gsc->gsc_sres == NULL) {
device_printf(dev, "failed to allocate bus space resource\n");
return (ENXIO);
}
gsc->gsc_irid = 0;
gsc->gsc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&gsc->gsc_irid, RF_SHAREABLE | RF_ACTIVE);
if (gsc->gsc_ires == NULL) {
device_printf(dev, "failed to allocate interrupt resource\n");
goto fail_sres;
}
sc->sc_bustag = rman_get_bustag(gsc->gsc_sres);
sc->sc_h = rman_get_bushandle(gsc->gsc_sres);
/* All platform that this driver is used on must provide this. */
OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr);
/*
* call the main configure
*/
if (gem_attach(sc) != 0) {
device_printf(dev, "could not be configured\n");
goto fail_ires;
}
if (bus_setup_intr(dev, gsc->gsc_ires, INTR_TYPE_NET, gem_intr, sc,
&gsc->gsc_ih) != 0) {
device_printf(dev, "failed to set up interrupt\n");
gem_detach(sc);
goto fail_ires;
}
return (0);
fail_ires:
bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires);
fail_sres:
bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres);
return (ENXIO);
}
static int
gem_pci_detach(dev)
device_t dev;
{
struct gem_pci_softc *gsc = device_get_softc(dev);
struct gem_softc *sc = &gsc->gsc_gem;
gem_detach(sc);
bus_teardown_intr(dev, gsc->gsc_ires, gsc->gsc_ih);
bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires);
bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres);
return (0);
}
static int
gem_pci_suspend(dev)
device_t dev;
{
struct gem_pci_softc *gsc = device_get_softc(dev);
struct gem_softc *sc = &gsc->gsc_gem;
gem_suspend(sc);
return (0);
}
static int
gem_pci_resume(dev)
device_t dev;
{
struct gem_pci_softc *gsc = device_get_softc(dev);
struct gem_softc *sc = &gsc->gsc_gem;
gem_resume(sc);
return (0);
}