252 lines
7.4 KiB
C
252 lines
7.4 KiB
C
/* $NetBSD: exphy.c,v 1.21 2000/02/02 17:09:43 thorpej Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
|
|
* NASA Ames Research Center, and by Frank van der Linden.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1997 Manuel Bouyer. 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 Manuel Bouyer.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* driver for 3Com internal PHYs
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/socket.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>
|
|
|
|
int exphymatch __P((struct device *, struct cfdata *, void *));
|
|
void exphyattach __P((struct device *, struct device *, void *));
|
|
|
|
struct cfattach exphy_ca = {
|
|
sizeof(struct mii_softc), exphymatch, exphyattach, mii_phy_detach,
|
|
mii_phy_activate
|
|
};
|
|
|
|
int exphy_service __P((struct mii_softc *, struct mii_data *, int));
|
|
void exphy_reset __P((struct mii_softc *));
|
|
|
|
int
|
|
exphymatch(parent, match, aux)
|
|
struct device *parent;
|
|
struct cfdata *match;
|
|
void *aux;
|
|
{
|
|
struct mii_attach_args *ma = aux;
|
|
|
|
/*
|
|
* Argh, 3Com PHY reports oui == 0 model == 0!
|
|
*/
|
|
if (MII_OUI(ma->mii_id1, ma->mii_id2) != 0 &&
|
|
MII_MODEL(ma->mii_id2) != 0)
|
|
return (0);
|
|
|
|
/*
|
|
* Make sure the parent is an `ex'.
|
|
*/
|
|
if (strcmp(parent->dv_cfdata->cf_driver->cd_name, "ex") != 0)
|
|
return (0);
|
|
|
|
return (10);
|
|
}
|
|
|
|
void
|
|
exphyattach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct mii_softc *sc = (struct mii_softc *)self;
|
|
struct mii_attach_args *ma = aux;
|
|
struct mii_data *mii = ma->mii_data;
|
|
|
|
printf(": 3Com internal media interface\n");
|
|
|
|
sc->mii_inst = mii->mii_instance;
|
|
sc->mii_phy = ma->mii_phyno;
|
|
sc->mii_service = exphy_service;
|
|
sc->mii_pdata = mii;
|
|
sc->mii_flags = mii->mii_flags;
|
|
|
|
/*
|
|
* The 3Com PHY can never be isolated, so never allow non-zero
|
|
* instances!
|
|
*/
|
|
if (mii->mii_instance != 0) {
|
|
printf("%s: ignoring this PHY, non-zero instance\n",
|
|
sc->mii_dev.dv_xname);
|
|
return;
|
|
}
|
|
sc->mii_flags |= MIIF_NOISOLATE;
|
|
|
|
exphy_reset(sc);
|
|
|
|
sc->mii_capabilities =
|
|
PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
|
|
printf("%s: ", sc->mii_dev.dv_xname);
|
|
if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
|
|
printf("no media present");
|
|
else
|
|
mii_phy_add_media(sc);
|
|
printf("\n");
|
|
}
|
|
|
|
int
|
|
exphy_service(sc, mii, cmd)
|
|
struct mii_softc *sc;
|
|
struct mii_data *mii;
|
|
int cmd;
|
|
{
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
|
|
if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
|
|
return (ENXIO);
|
|
|
|
/*
|
|
* We can't isolate the 3Com PHY, so it has to be the only one!
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
panic("exphy_service: can't isolate 3Com PHY");
|
|
|
|
switch (cmd) {
|
|
case MII_POLLSTAT:
|
|
break;
|
|
|
|
case MII_MEDIACHG:
|
|
/*
|
|
* 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:
|
|
/*
|
|
* If we're already in auto mode, just return.
|
|
*/
|
|
if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
|
|
return (0);
|
|
(void) mii_phy_auto(sc, 1);
|
|
break;
|
|
default:
|
|
mii_phy_setmedia(sc);
|
|
}
|
|
break;
|
|
|
|
case MII_TICK:
|
|
/*
|
|
* 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);
|
|
|
|
/*
|
|
* The 3Com PHY's autonegotiation doesn't need to be
|
|
* kicked; it continues in the background.
|
|
*/
|
|
break;
|
|
|
|
case MII_DOWN:
|
|
mii_phy_down(sc);
|
|
return (0);
|
|
}
|
|
|
|
/* Update the media status. */
|
|
ukphy_status(sc);
|
|
|
|
/* Callback if something changed. */
|
|
if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
|
|
(*mii->mii_statchg)(sc->mii_dev.dv_parent);
|
|
sc->mii_active = mii->mii_media_active;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
exphy_reset(sc)
|
|
struct mii_softc *sc;
|
|
{
|
|
|
|
mii_phy_reset(sc);
|
|
|
|
/*
|
|
* XXX 3Com PHY doesn't set the BMCR properly after
|
|
* XXX reset, which breaks autonegotiation.
|
|
*/
|
|
PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_AUTOEN|BMCR_FDX);
|
|
}
|