308 lines
8.7 KiB
C
308 lines
8.7 KiB
C
/* $NetBSD: iophy.c,v 1.7 2000/02/02 17:50:44 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.
|
|
*/
|
|
|
|
/*
|
|
* Intel 82553 PHY driver
|
|
*/
|
|
|
|
#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>
|
|
|
|
#include <dev/mii/iophyreg.h>
|
|
|
|
int iophymatch __P((struct device *, struct cfdata *, void *));
|
|
void iophyattach __P((struct device *, struct device *, void *));
|
|
|
|
struct cfattach iophy_ca = {
|
|
sizeof(struct mii_softc), iophymatch, iophyattach, mii_phy_detach,
|
|
mii_phy_activate
|
|
};
|
|
|
|
int iophy_service __P((struct mii_softc *, struct mii_data *, int));
|
|
void iophy_status __P((struct mii_softc *));
|
|
|
|
int
|
|
iophymatch(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_xxINTEL &&
|
|
MII_MODEL(ma->mii_id2) == MII_MODEL_xxINTEL_I82553)
|
|
return (10);
|
|
|
|
if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_INTEL &&
|
|
MII_MODEL(ma->mii_id2) == MII_MODEL_INTEL_I82553)
|
|
return (10);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
iophyattach(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(": %s, rev. %d\n", MII_STR_INTEL_I82553,
|
|
MII_REV(ma->mii_id2));
|
|
|
|
sc->mii_inst = mii->mii_instance;
|
|
sc->mii_phy = ma->mii_phyno;
|
|
sc->mii_service = iophy_service;
|
|
sc->mii_status = iophy_status;
|
|
sc->mii_pdata = mii;
|
|
sc->mii_flags = mii->mii_flags;
|
|
|
|
mii_phy_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
|
|
iophy_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;
|
|
|
|
if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
|
|
return (ENXIO);
|
|
|
|
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:
|
|
/*
|
|
* 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:
|
|
/*
|
|
* 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;
|
|
|
|
case MII_DOWN:
|
|
mii_phy_down(sc);
|
|
return (0);
|
|
}
|
|
|
|
/* Update the media status. */
|
|
mii_phy_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
|
|
iophy_status(sc)
|
|
struct mii_softc *sc;
|
|
{
|
|
struct mii_data *mii = sc->mii_pdata;
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
int bmsr, bmcr, ext0;
|
|
|
|
mii->mii_media_status = IFM_AVALID;
|
|
mii->mii_media_active = IFM_ETHER;
|
|
|
|
bmsr = PHY_READ(sc, MII_BMSR) |
|
|
PHY_READ(sc, MII_BMSR);
|
|
if (bmsr & BMSR_LINK)
|
|
mii->mii_media_status |= IFM_ACTIVE;
|
|
|
|
bmcr = PHY_READ(sc, MII_BMCR);
|
|
if (bmcr & BMCR_ISO) {
|
|
mii->mii_media_active |= IFM_NONE;
|
|
mii->mii_media_status = 0;
|
|
return;
|
|
}
|
|
|
|
if (bmcr & BMCR_LOOP)
|
|
mii->mii_media_active |= IFM_LOOP;
|
|
|
|
if (bmcr & BMCR_AUTOEN) {
|
|
if ((bmsr & BMSR_ACOMP) == 0) {
|
|
/* Erg, still trying, I guess... */
|
|
mii->mii_media_active |= IFM_NONE;
|
|
return;
|
|
}
|
|
ext0 = PHY_READ(sc, MII_IOPHY_EXT0);
|
|
|
|
if (ext0 & EXT0_SPEED)
|
|
if (bmsr & BMSR_100T4) {
|
|
mii->mii_media_active |= IFM_100_T4;
|
|
return;
|
|
} else {
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
}
|
|
else
|
|
mii->mii_media_active |= IFM_10_T;
|
|
|
|
if (ext0 & EXT0_DUPLEX)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
} else
|
|
mii->mii_media_active = ife->ifm_media;
|
|
}
|