419 lines
12 KiB
C
419 lines
12 KiB
C
/* $NetBSD: tlphy.c,v 1.20 1999/11/12 18:13:01 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.
|
|
*
|
|
* 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 Texas Instruments's ThunderLAN PHYs
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/errno.h>
|
|
|
|
#include <machine/bus.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_media.h>
|
|
|
|
#include <net/if_ether.h>
|
|
|
|
#include <dev/mii/mii.h>
|
|
#include <dev/mii/miivar.h>
|
|
#include <dev/mii/miidevs.h>
|
|
|
|
#include <dev/i2c/i2c_bus.h>
|
|
|
|
#include <dev/mii/tlphyreg.h>
|
|
#include <dev/mii/tlphyvar.h>
|
|
|
|
/* ThunderLAN PHY can only be on a ThunderLAN */
|
|
#include <dev/pci/if_tlvar.h>
|
|
|
|
struct tlphy_softc {
|
|
struct mii_softc sc_mii; /* generic PHY */
|
|
int sc_tlphycap;
|
|
int sc_need_acomp;
|
|
};
|
|
|
|
int tlphymatch __P((struct device *, struct cfdata *, void *));
|
|
void tlphyattach __P((struct device *, struct device *, void *));
|
|
|
|
struct cfattach tlphy_ca = {
|
|
sizeof(struct tlphy_softc), tlphymatch, tlphyattach
|
|
};
|
|
|
|
int tlphy_service __P((struct mii_softc *, struct mii_data *, int));
|
|
int tlphy_auto __P((struct tlphy_softc *, int));
|
|
void tlphy_acomp __P((struct tlphy_softc *));
|
|
void tlphy_status __P((struct tlphy_softc *));
|
|
|
|
int
|
|
tlphymatch(parent, match, aux)
|
|
struct device *parent;
|
|
struct cfdata *match;
|
|
void *aux;
|
|
{
|
|
struct mii_attach_args *ma = aux;
|
|
|
|
if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxTI &&
|
|
MII_MODEL(ma->mii_id2) == MII_MODEL_xxTI_TLAN10T)
|
|
return (10);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
tlphyattach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct tlphy_softc *sc = (struct tlphy_softc *)self;
|
|
struct tl_softc *tlsc = (struct tl_softc *)self->dv_parent;
|
|
struct mii_attach_args *ma = aux;
|
|
struct mii_data *mii = ma->mii_data;
|
|
const char *sep = "";
|
|
|
|
printf(": %s, rev. %d\n", MII_STR_xxTI_TLAN10T,
|
|
MII_REV(ma->mii_id2));
|
|
|
|
sc->sc_mii.mii_inst = mii->mii_instance;
|
|
sc->sc_mii.mii_phy = ma->mii_phyno;
|
|
sc->sc_mii.mii_service = tlphy_service;
|
|
sc->sc_mii.mii_pdata = mii;
|
|
|
|
mii_phy_reset(&sc->sc_mii);
|
|
|
|
/*
|
|
* Note that if we're on a device that also supports 100baseTX,
|
|
* we are not going to want to use the built-in 10baseT port,
|
|
* since there will be another PHY on the MII wired up to the
|
|
* UTP connector. The parent indicates this to us by specifying
|
|
* the TLPHY_MEDIA_NO_10_T bit.
|
|
*/
|
|
sc->sc_tlphycap = tlsc->tl_product->tp_tlphymedia;
|
|
if ((sc->sc_tlphycap & TLPHY_MEDIA_NO_10_T) == 0)
|
|
sc->sc_mii.mii_capabilities =
|
|
PHY_READ(&sc->sc_mii, MII_BMSR) & ma->mii_capmask;
|
|
else
|
|
sc->sc_mii.mii_capabilities = 0;
|
|
|
|
|
|
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
|
|
#define PRINT(s) printf("%s%s", sep, s); sep = ", "
|
|
|
|
printf("%s: ", sc->sc_mii.mii_dev.dv_xname);
|
|
if (sc->sc_tlphycap) {
|
|
if (sc->sc_tlphycap & TLPHY_MEDIA_10_2) {
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0,
|
|
sc->sc_mii.mii_inst), 0);
|
|
PRINT("10base2");
|
|
} else if (sc->sc_tlphycap & TLPHY_MEDIA_10_5) {
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0,
|
|
sc->sc_mii.mii_inst), 0);
|
|
PRINT("10base5");
|
|
}
|
|
}
|
|
if (sc->sc_mii.mii_capabilities & BMSR_MEDIAMASK) {
|
|
printf(sep);
|
|
mii_add_media(&sc->sc_mii);
|
|
} else if ((sc->sc_tlphycap &
|
|
(TLPHY_MEDIA_10_2 | TLPHY_MEDIA_10_5)) == 0)
|
|
printf("no media present");
|
|
printf("\n");
|
|
#undef ADD
|
|
#undef PRINT
|
|
}
|
|
|
|
int
|
|
tlphy_service(self, mii, cmd)
|
|
struct mii_softc *self;
|
|
struct mii_data *mii;
|
|
int cmd;
|
|
{
|
|
struct tlphy_softc *sc = (struct tlphy_softc *)self;
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
int reg;
|
|
|
|
if ((sc->sc_mii.mii_flags & MIIF_DOINGAUTO) == 0 && sc->sc_need_acomp)
|
|
tlphy_acomp(sc);
|
|
|
|
switch (cmd) {
|
|
case MII_POLLSTAT:
|
|
/*
|
|
* If we're not polling our PHY instance, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->sc_mii.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->sc_mii.mii_inst) {
|
|
reg = PHY_READ(&sc->sc_mii, MII_BMCR);
|
|
PHY_WRITE(&sc->sc_mii, 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:
|
|
/*
|
|
* The ThunderLAN PHY doesn't self-configure after
|
|
* an autonegotiation cycle, so there's no such
|
|
* thing as "already in auto mode".
|
|
*/
|
|
(void) tlphy_auto(sc, 1);
|
|
break;
|
|
case IFM_10_2:
|
|
case IFM_10_5:
|
|
PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
|
|
PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, CTRL_AUISEL);
|
|
delay(100000);
|
|
break;
|
|
default:
|
|
PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, 0);
|
|
delay(100000);
|
|
mii_phy_setmedia(&sc->sc_mii);
|
|
}
|
|
break;
|
|
|
|
case MII_TICK:
|
|
/*
|
|
* If we're not currently selected, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->sc_mii.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.
|
|
*
|
|
* XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?!
|
|
*/
|
|
reg = PHY_READ(&sc->sc_mii, MII_BMSR) |
|
|
PHY_READ(&sc->sc_mii, MII_BMSR);
|
|
if (reg & BMSR_LINK)
|
|
return (0);
|
|
|
|
/*
|
|
* Only retry autonegotiation every 5 seconds.
|
|
*/
|
|
if (++sc->sc_mii.mii_ticks != 5)
|
|
return (0);
|
|
|
|
sc->sc_mii.mii_ticks = 0;
|
|
mii_phy_reset(&sc->sc_mii);
|
|
if (tlphy_auto(sc, 0) == EJUSTRETURN)
|
|
return (0);
|
|
break;
|
|
|
|
case MII_DOWN:
|
|
mii_phy_down(&sc->sc_mii);
|
|
return (0);
|
|
}
|
|
|
|
/* Update the media status. */
|
|
tlphy_status(sc);
|
|
|
|
/* Callback if something changed. */
|
|
if (sc->sc_mii.mii_active != mii->mii_media_active ||
|
|
cmd == MII_MEDIACHG) {
|
|
(*mii->mii_statchg)(sc->sc_mii.mii_dev.dv_parent);
|
|
sc->sc_mii.mii_active = mii->mii_media_active;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
tlphy_status(sc)
|
|
struct tlphy_softc *sc;
|
|
{
|
|
struct mii_data *mii = sc->sc_mii.mii_pdata;
|
|
struct tl_softc *tlsc = (struct tl_softc *)sc->sc_mii.mii_dev.dv_parent;
|
|
int bmsr, bmcr, tlctrl;
|
|
|
|
mii->mii_media_status = IFM_AVALID;
|
|
mii->mii_media_active = IFM_ETHER;
|
|
|
|
bmcr = PHY_READ(&sc->sc_mii, MII_BMCR);
|
|
if (bmcr & BMCR_ISO) {
|
|
mii->mii_media_active |= IFM_NONE;
|
|
mii->mii_media_status = 0;
|
|
return;
|
|
}
|
|
|
|
tlctrl = PHY_READ(&sc->sc_mii, MII_TLPHY_CTRL);
|
|
if (tlctrl & CTRL_AUISEL) {
|
|
if (sc->sc_tlphycap & TLPHY_MEDIA_10_2)
|
|
mii->mii_media_active |= IFM_10_2;
|
|
else if (sc->sc_tlphycap & TLPHY_MEDIA_10_5)
|
|
mii->mii_media_active |= IFM_10_5;
|
|
else
|
|
printf("%s: AUI selected with no matching media !\n",
|
|
sc->sc_mii.mii_dev.dv_xname);
|
|
if (tlsc->tl_flags & TL_IFACT)
|
|
mii->mii_media_status |= IFM_ACTIVE;
|
|
return;
|
|
}
|
|
|
|
bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) |
|
|
PHY_READ(&sc->sc_mii, MII_BMSR);
|
|
if (bmsr & BMSR_LINK)
|
|
mii->mii_media_status |= IFM_ACTIVE;
|
|
|
|
if (bmcr & BMCR_LOOP)
|
|
mii->mii_media_active |= IFM_LOOP;
|
|
|
|
/*
|
|
* Grr, braindead ThunderLAN PHY doesn't have any way to
|
|
* tell which media is actually active. (Note it also
|
|
* doesn't self-configure after autonegotiation.) We
|
|
* just have to report what's in the BMCR.
|
|
*/
|
|
if (bmcr & BMCR_FDX)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
mii->mii_media_active |= IFM_10_T;
|
|
}
|
|
|
|
int
|
|
tlphy_auto(sc, waitfor)
|
|
struct tlphy_softc *sc;
|
|
int waitfor;
|
|
{
|
|
int error;
|
|
|
|
switch ((error = mii_phy_auto(&sc->sc_mii, waitfor))) {
|
|
case EIO:
|
|
/*
|
|
* Just assume we're not in full-duplex mode.
|
|
* XXX Check link and try AUI/BNC?
|
|
*/
|
|
PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
|
|
break;
|
|
|
|
case EJUSTRETURN:
|
|
/* Flag that we need to program when it completes. */
|
|
sc->sc_need_acomp = 1;
|
|
break;
|
|
|
|
default:
|
|
tlphy_acomp(sc);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
void
|
|
tlphy_acomp(sc)
|
|
struct tlphy_softc *sc;
|
|
{
|
|
int aner, anlpar;
|
|
|
|
sc->sc_need_acomp = 0;
|
|
|
|
/*
|
|
* Grr, braindead ThunderLAN PHY doesn't self-configure
|
|
* after autonegotiation. We have to do it ourselves
|
|
* based on the link partner status.
|
|
*/
|
|
|
|
aner = PHY_READ(&sc->sc_mii, MII_ANER);
|
|
if (aner & ANER_LPAN) {
|
|
anlpar = PHY_READ(&sc->sc_mii, MII_ANLPAR) &
|
|
PHY_READ(&sc->sc_mii, MII_ANAR);
|
|
if (anlpar & ANAR_10_FD) {
|
|
PHY_WRITE(&sc->sc_mii, MII_BMCR, BMCR_FDX);
|
|
return;
|
|
}
|
|
}
|
|
PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
|
|
}
|