0ee7429451
(even though I want the fixes in -stable anyway). I'm sure I'm going to get flamed now for committing to -stable and -current too quickly. *sigh*
283 lines
7.0 KiB
C
283 lines
7.0 KiB
C
/*
|
|
* Copyright (c) 2000 Berkeley Software Design, Inc.
|
|
* Copyright (c) 1997, 1998, 1999, 2000
|
|
* Bill Paul <wpaul@osd.bsdi.com>. 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Bill Paul.
|
|
* 4. Neither the name of the author nor the names of any co-contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* driver for homePNA PHYs
|
|
* This is really just a stub that allows us to identify homePNA-based
|
|
* transceicers and display the link status. MII-based homePNA PHYs
|
|
* only support one media type and no autonegotiation. If we were
|
|
* really clever, we could tweak some of the vendor-specific registers
|
|
* to optimize the link.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_media.h>
|
|
|
|
|
|
#include <dev/mii/mii.h>
|
|
#include <dev/mii/miivar.h>
|
|
#include <dev/mii/miidevs.h>
|
|
|
|
#include "miibus_if.h"
|
|
|
|
#if !defined(lint)
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif
|
|
|
|
static int pnaphy_probe __P((device_t));
|
|
static int pnaphy_attach __P((device_t));
|
|
static int pnaphy_detach __P((device_t));
|
|
|
|
static device_method_t pnaphy_methods[] = {
|
|
/* device interface */
|
|
DEVMETHOD(device_probe, pnaphy_probe),
|
|
DEVMETHOD(device_attach, pnaphy_attach),
|
|
DEVMETHOD(device_detach, pnaphy_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static devclass_t pnaphy_devclass;
|
|
|
|
static driver_t pnaphy_driver = {
|
|
"pnaphy",
|
|
pnaphy_methods,
|
|
sizeof(struct mii_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(pnaphy, miibus, pnaphy_driver, pnaphy_devclass, 0, 0);
|
|
|
|
int pnaphy_service __P((struct mii_softc *, struct mii_data *, int));
|
|
|
|
static int
|
|
pnaphy_probe(dev)
|
|
device_t dev;
|
|
{
|
|
|
|
struct mii_attach_args *ma;
|
|
|
|
ma = device_get_ivars(dev);
|
|
|
|
if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_AMD &&
|
|
MII_MODEL(ma->mii_id2) == MII_MODEL_AMD_79c978) {
|
|
device_set_desc(dev, MII_STR_AMD_79c978);
|
|
return(0);
|
|
}
|
|
|
|
return(ENXIO);
|
|
}
|
|
|
|
static int
|
|
pnaphy_attach(dev)
|
|
device_t dev;
|
|
{
|
|
struct mii_softc *sc;
|
|
struct mii_attach_args *ma;
|
|
struct mii_data *mii;
|
|
const char *sep = "";
|
|
|
|
sc = device_get_softc(dev);
|
|
ma = device_get_ivars(dev);
|
|
sc->mii_dev = device_get_parent(dev);
|
|
mii = device_get_softc(sc->mii_dev);
|
|
LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
|
|
|
|
sc->mii_inst = mii->mii_instance;
|
|
sc->mii_phy = ma->mii_phyno;
|
|
sc->mii_service = pnaphy_service;
|
|
sc->mii_pdata = mii;
|
|
|
|
mii->mii_instance++;
|
|
|
|
sc->mii_flags |= MIIF_NOISOLATE;
|
|
|
|
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
|
|
#define PRINT(s) printf("%s%s", sep, s); sep = ", "
|
|
|
|
mii_phy_reset(sc);
|
|
|
|
sc->mii_capabilities =
|
|
PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
|
|
device_printf(dev, " ");
|
|
if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
|
|
printf("no media present");
|
|
else {
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_homePNA, 0, sc->mii_inst), 0);
|
|
PRINT("HomePNA");
|
|
}
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
|
|
BMCR_ISO);
|
|
|
|
printf("\n");
|
|
|
|
#undef ADD
|
|
#undef PRINT
|
|
|
|
MIIBUS_MEDIAINIT(sc->mii_dev);
|
|
|
|
return(0);
|
|
}
|
|
|
|
static int pnaphy_detach(dev)
|
|
device_t dev;
|
|
{
|
|
struct mii_softc *sc;
|
|
struct mii_data *mii;
|
|
|
|
sc = device_get_softc(dev);
|
|
mii = device_get_softc(device_get_parent(dev));
|
|
mii_phy_auto_stop(sc);
|
|
sc->mii_dev = NULL;
|
|
LIST_REMOVE(sc, mii_list);
|
|
|
|
return(0);
|
|
}
|
|
|
|
int
|
|
pnaphy_service(sc, mii, cmd)
|
|
struct mii_softc *sc;
|
|
struct mii_data *mii;
|
|
int cmd;
|
|
{
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
int reg;
|
|
|
|
switch (cmd) {
|
|
case MII_POLLSTAT:
|
|
/*
|
|
* If we're not polling our PHY instance, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
return (0);
|
|
break;
|
|
|
|
case MII_MEDIACHG:
|
|
/*
|
|
* If the media indicates a different PHY instance,
|
|
* isolate ourselves.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
|
|
reg = PHY_READ(sc, MII_BMCR);
|
|
PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* If the interface is not up, don't do anything.
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
break;
|
|
|
|
switch (IFM_SUBTYPE(ife->ifm_media)) {
|
|
case IFM_AUTO:
|
|
case IFM_10_T:
|
|
case IFM_100_TX:
|
|
case IFM_100_T4:
|
|
return (EINVAL);
|
|
default:
|
|
/*
|
|
* BMCR data is stored in the ifmedia entry.
|
|
*/
|
|
PHY_WRITE(sc, MII_ANAR,
|
|
mii_anar(ife->ifm_media));
|
|
PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
|
|
}
|
|
break;
|
|
|
|
case MII_TICK:
|
|
/*
|
|
* If we're not currently selected, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
return (0);
|
|
|
|
/*
|
|
* Only used for autonegotiation.
|
|
*/
|
|
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
|
|
return (0);
|
|
|
|
/*
|
|
* Is the interface even up?
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
return (0);
|
|
|
|
/*
|
|
* Check to see if we have link. If we do, we don't
|
|
* need to restart the autonegotiation process. Read
|
|
* the BMSR twice in case it's latched.
|
|
*/
|
|
reg = PHY_READ(sc, MII_BMSR) |
|
|
PHY_READ(sc, MII_BMSR);
|
|
if (reg & BMSR_LINK)
|
|
return (0);
|
|
|
|
/*
|
|
* Only retry autonegotiation every 5 seconds.
|
|
*/
|
|
if (++sc->mii_ticks != 5)
|
|
return (0);
|
|
|
|
sc->mii_ticks = 0;
|
|
mii_phy_reset(sc);
|
|
if (mii_phy_auto(sc, 0) == EJUSTRETURN)
|
|
return (0);
|
|
break;
|
|
}
|
|
|
|
/* Update the media status. */
|
|
ukphy_status(sc);
|
|
if (IFM_SUBTYPE(mii->mii_media_active) == IFM_10_T)
|
|
mii->mii_media_active = IFM_ETHER|IFM_homePNA;
|
|
|
|
/* Callback if something changed. */
|
|
if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
|
|
MIIBUS_STATCHG(sc->mii_dev);
|
|
sc->mii_active = mii->mii_media_active;
|
|
}
|
|
return (0);
|
|
}
|