e3768ebb1b
We really want to be able to say "auto NWAY", "limited NWAY", and "no NWAY". Unfortunately, this does not appear to be possible with the current mediaopt structure.
306 lines
7.4 KiB
C
306 lines
7.4 KiB
C
/*-
|
|
* Copyright (c) 2001 Jonathan Lemon
|
|
* 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. 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 THE AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* driver for Intel 82553 and 82555 PHYs
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/socket.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 <dev/mii/inphyreg.h>
|
|
|
|
#include "miibus_if.h"
|
|
|
|
static int inphy_probe(device_t dev);
|
|
static int inphy_attach(device_t dev);
|
|
static int inphy_detach(device_t dev);
|
|
|
|
static device_method_t inphy_methods[] = {
|
|
/* device interface */
|
|
DEVMETHOD(device_probe, inphy_probe),
|
|
DEVMETHOD(device_attach, inphy_attach),
|
|
DEVMETHOD(device_detach, inphy_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static devclass_t inphy_devclass;
|
|
|
|
static driver_t inphy_driver = {
|
|
"inphy",
|
|
inphy_methods,
|
|
sizeof(struct mii_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(inphy, miibus, inphy_driver, inphy_devclass, 0, 0);
|
|
|
|
int inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd);
|
|
void inphy_status(struct mii_softc *sc);
|
|
|
|
|
|
static int
|
|
inphy_probe(device_t dev)
|
|
{
|
|
struct mii_attach_args *ma;
|
|
device_t parent;
|
|
|
|
ma = device_get_ivars(dev);
|
|
parent = device_get_parent(device_get_parent(dev));
|
|
|
|
/* Intel 82555 */
|
|
if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_INTEL &&
|
|
MII_MODEL(ma->mii_id2) == MII_MODEL_INTEL_I82555) {
|
|
device_set_desc(dev, MII_STR_INTEL_I82555);
|
|
return (0);
|
|
}
|
|
|
|
/* Intel 82553 C stepping */
|
|
if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_INTEL &&
|
|
MII_MODEL(ma->mii_id2) == MII_MODEL_INTEL_I82553C) {
|
|
device_set_desc(dev, MII_STR_INTEL_I82553C);
|
|
return (0);
|
|
}
|
|
|
|
/* Intel 82553 A/B steppings */
|
|
if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxINTEL &&
|
|
MII_MODEL(ma->mii_id2) == MII_MODEL_xxINTEL_I82553AB) {
|
|
device_set_desc(dev, MII_STR_xxINTEL_I82553AB);
|
|
return (0);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
inphy_attach(device_t dev)
|
|
{
|
|
struct mii_softc *sc;
|
|
struct mii_attach_args *ma;
|
|
struct mii_data *mii;
|
|
|
|
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 = inphy_service;
|
|
sc->mii_pdata = mii;
|
|
mii->mii_instance++;
|
|
|
|
#if 0
|
|
sc->mii_flags |= MIIF_NOISOLATE;
|
|
#endif
|
|
|
|
ifmedia_add(&mii->mii_media,
|
|
IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
|
|
BMCR_LOOP|BMCR_S100, NULL);
|
|
|
|
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
|
|
mii_add_media(mii, sc->mii_capabilities, sc->mii_inst);
|
|
printf("\n");
|
|
|
|
MIIBUS_MEDIAINIT(sc->mii_dev);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
inphy_detach(device_t dev)
|
|
{
|
|
struct mii_softc *sc;
|
|
struct mii_data *mii;
|
|
|
|
sc = device_get_softc(dev);
|
|
mii = device_get_softc(device_get_softc(dev));
|
|
mii_phy_auto_stop(sc);
|
|
sc->mii_dev = NULL;
|
|
LIST_REMOVE(sc, mii_list);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
inphy_service(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 (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
return (0);
|
|
break;
|
|
|
|
case MII_MEDIACHG:
|
|
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, 0);
|
|
break;
|
|
case IFM_100_T4:
|
|
/*
|
|
* XXX Not supported as a manual setting right now.
|
|
*/
|
|
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 (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
return (0);
|
|
|
|
/*
|
|
* Is the interface even up?
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
return (0);
|
|
|
|
/*
|
|
* Only used for autonegotiation.
|
|
*/
|
|
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
|
|
return (0);
|
|
|
|
/*
|
|
* check for link.
|
|
* Read the status register twice; BMSR_LINK is latch-low.
|
|
*/
|
|
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. */
|
|
inphy_status(sc);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
void
|
|
inphy_status(struct mii_softc *sc)
|
|
{
|
|
struct mii_data *mii = sc->mii_pdata;
|
|
int bmsr, bmcr, scr;
|
|
|
|
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) {
|
|
mii->mii_media_active |= IFM_NONE;
|
|
return;
|
|
}
|
|
|
|
scr = PHY_READ(sc, MII_INPHY_SCR);
|
|
if (scr & SCR_S100)
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
else
|
|
mii->mii_media_active |= IFM_10_T;
|
|
if (scr & SCR_FDX)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
} else
|
|
mii->mii_media_active |= mii_media_from_bmcr(bmcr);
|
|
}
|