f0941ae8a0
correct network drivers with respect to busmaster DMA, go over it
with at duster to make other aspects of it a role model:
Eliminate the pci specific softc, it serves no rational purpose.
Use convenience resource allocation/deallocation functions to save
code and errorhandling.
Switch from bus_space_{read|write}_%u() to bus_{read|write}_%u()
functions and forget about tags and handles, the resource will know
about those, should they be needed. This also eliminates a number
of inconsistently named local variables.
240 lines
6.0 KiB
C
240 lines
6.0 KiB
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("$FreeBSD$");
|
|
|
|
/*
|
|
* 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/lock.h>
|
|
#include <sys/module.h>
|
|
#include <sys/mutex.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"
|
|
|
|
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_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_softc *sc;
|
|
|
|
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);
|
|
sc = device_get_softc(dev);
|
|
sc->sc_variant = gem_pci_devlist[i].gpd_variant;
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static struct resource_spec gem_pci_res_spec[] = {
|
|
{ SYS_RES_MEMORY, PCI_GEM_BASEADDR, RF_ACTIVE },
|
|
{ SYS_RES_IRQ, 0, RF_SHAREABLE | RF_ACTIVE },
|
|
{ -1, 0 }
|
|
};
|
|
|
|
static int
|
|
gem_pci_attach(dev)
|
|
device_t dev;
|
|
{
|
|
struct gem_softc *sc = device_get_softc(dev);
|
|
|
|
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 */
|
|
|
|
if (bus_alloc_resources(dev, gem_pci_res_spec, sc->sc_res)) {
|
|
device_printf(dev, "failed to allocate resources\n");
|
|
bus_release_resources(dev, gem_pci_res_spec, sc->sc_res);
|
|
return (ENXIO);
|
|
}
|
|
|
|
GEM_LOCK_INIT(sc, device_get_nameunit(dev));
|
|
|
|
/* All platform that this driver is used on must provide this. */
|
|
OF_getetheraddr(dev, sc->sc_enaddr);
|
|
|
|
/*
|
|
* call the main configure
|
|
*/
|
|
if (gem_attach(sc) != 0) {
|
|
device_printf(dev, "could not be configured\n");
|
|
goto fail;
|
|
}
|
|
|
|
if (bus_setup_intr(dev, sc->sc_res[1], INTR_TYPE_NET | INTR_MPSAFE,
|
|
NULL, gem_intr, sc, &sc->sc_ih) != 0) {
|
|
device_printf(dev, "failed to set up interrupt\n");
|
|
gem_detach(sc);
|
|
goto fail;
|
|
}
|
|
return (0);
|
|
|
|
fail:
|
|
bus_release_resources(dev, gem_pci_res_spec, sc->sc_res);
|
|
GEM_LOCK_DESTROY(sc);
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
gem_pci_detach(dev)
|
|
device_t dev;
|
|
{
|
|
struct gem_softc *sc = device_get_softc(dev);
|
|
|
|
bus_teardown_intr(dev, sc->sc_res[1], sc->sc_ih);
|
|
gem_detach(sc);
|
|
GEM_LOCK_DESTROY(sc);
|
|
bus_release_resources(dev, gem_pci_res_spec, sc->sc_res);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
gem_pci_suspend(dev)
|
|
device_t dev;
|
|
{
|
|
struct gem_softc *sc = device_get_softc(dev);
|
|
|
|
gem_suspend(sc);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
gem_pci_resume(dev)
|
|
device_t dev;
|
|
{
|
|
struct gem_softc *sc = device_get_softc(dev);
|
|
|
|
gem_resume(sc);
|
|
return (0);
|
|
}
|