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/*-
* 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* driver for Intel 82553 and 82555 PHYs
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/socket.h>
#include <sys/bus.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include "miidevs.h"
#include <dev/fxp/inphyreg.h>
#include "miibus_if.h"
static int inphy_probe(device_t dev);
static int inphy_attach(device_t dev);
static device_method_t inphy_methods[] = {
/* device interface */
DEVMETHOD(device_probe, inphy_probe),
DEVMETHOD(device_attach, inphy_attach),
DEVMETHOD(device_detach, mii_phy_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);
static int inphy_service(struct mii_softc *, struct mii_data *, int);
static void inphy_status(struct mii_softc *);
static void inphy_reset(struct mii_softc *);
static const struct mii_phydesc inphys[] = {
MII_PHY_DESC(xxINTEL, I82553),
MII_PHY_DESC(yyINTEL, I82553),
MII_PHY_DESC(yyINTEL, I82555),
MII_PHY_DESC(yyINTEL, I82562EM),
MII_PHY_DESC(yyINTEL, I82562ET),
MII_PHY_END
};
static const struct mii_phy_funcs inphy_funcs = {
inphy_service,
inphy_status,
inphy_reset
};
static int
inphy_probe(device_t dev)
{
return (mii_phy_dev_probe(dev, inphys, BUS_PROBE_DEFAULT));
}
static int
inphy_attach(device_t dev)
{
mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &inphy_funcs, 1);
return (0);
}
static int
inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
switch (cmd) {
case MII_POLLSTAT:
break;
case MII_MEDIACHG:
/*
* If the interface is not up, don't do anything.
*/
if ((if_getflags(mii->mii_ifp) & IFF_UP) == 0)
break;
mii_phy_setmedia(sc);
break;
case MII_TICK:
if (mii_phy_tick(sc) == EJUSTRETURN)
return (0);
break;
}
/* Update the media status. */
PHY_STATUS(sc);
/* Callback if something changed. */
mii_phy_update(sc, cmd);
return (0);
}
static void
inphy_status(struct mii_softc *sc)
{
struct mii_data *mii = sc->mii_pdata;
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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 | mii_phy_flowstatus(sc);
else
mii->mii_media_active |= IFM_HDX;
} else
mii->mii_media_active = ife->ifm_media;
}
static void
inphy_reset(struct mii_softc *sc)
{
mii_phy_reset(sc);
/* Ensure Bay flow control is disabled. */
PHY_WRITE(sc, MII_INPHY_SCR,
PHY_READ(sc, MII_INPHY_SCR) & ~SCR_FLOWCTL);
}
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