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/* OpenBSD: lxtphy.c,v 1.5 2000/08/26 20:04:17 nate Exp */
/* NetBSD: lxtphy.c,v 1.19 2000/02/02 23:34:57 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.
*
* 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.
*
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* driver for Level One's LXT-970 ethernet 10/100 PHY
* datasheet from www.level1.com
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <sys/module.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 "miidevs.h"
#include <dev/mii/lxtphyreg.h>
#include "miibus_if.h"
static int lxtphy_probe(device_t);
static int lxtphy_attach(device_t);
static device_method_t lxtphy_methods[] = {
/* device interface */
DEVMETHOD(device_probe, lxtphy_probe),
DEVMETHOD(device_attach, lxtphy_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD_END
};
static devclass_t lxtphy_devclass;
static driver_t lxtphy_driver = {
"lxtphy",
lxtphy_methods,
sizeof(struct mii_softc)
};
DRIVER_MODULE(lxtphy, miibus, lxtphy_driver, lxtphy_devclass, 0, 0);
static int lxtphy_service(struct mii_softc *, struct mii_data *, int);
static void lxtphy_status(struct mii_softc *);
static void lxtphy_reset(struct mii_softc *);
static void lxtphy_set_tp(struct mii_softc *);
static void lxtphy_set_fx(struct mii_softc *);
static const struct mii_phydesc lxtphys[] = {
MII_PHY_DESC(xxLEVEL1, LXT970),
MII_PHY_END
};
static const struct mii_phy_funcs lxtphy_funcs = {
lxtphy_service,
lxtphy_status,
lxtphy_reset
};
static int
lxtphy_probe(device_t dev)
{
return (mii_phy_dev_probe(dev, lxtphys, BUS_PROBE_DEFAULT));
}
static int
lxtphy_attach(device_t dev)
{
struct mii_softc *sc;
sc = device_get_softc(dev);
mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &lxtphy_funcs, 0);
PHY_RESET(sc);
sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
device_printf(dev, " ");
#define ADD(m, c) ifmedia_add(&sc->mii_pdata->mii_media, (m), (c), NULL)
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst),
MII_MEDIA_100_TX);
printf("100baseFX, ");
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst),
MII_MEDIA_100_TX_FDX);
printf("100baseFX-FDX, ");
#undef ADD
mii_phy_add_media(sc);
printf("\n");
MIIBUS_MEDIAINIT(sc->mii_dev);
return (0);
}
static int
lxtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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;
if (IFM_SUBTYPE(ife->ifm_media) == IFM_100_FX)
lxtphy_set_fx(sc);
else
lxtphy_set_tp(sc);
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
lxtphy_status(struct mii_softc *sc)
{
struct mii_data *mii = sc->mii_pdata;
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
int bmcr, bmsr, csr;
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
/*
* Get link status from the CSR; we need to read the CSR
* for media type anyhow, and the link status in the CSR
* doens't latch, so fewer register reads are required.
*/
csr = PHY_READ(sc, MII_LXTPHY_CSR);
if (csr & CSR_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) {
bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
if ((bmsr & BMSR_ACOMP) == 0) {
/* Erg, still trying, I guess... */
mii->mii_media_active |= IFM_NONE;
return;
}
if (csr & CSR_SPEED)
mii->mii_media_active |= IFM_100_TX;
else
mii->mii_media_active |= IFM_10_T;
if (csr & CSR_DUPLEX)
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
lxtphy_reset(struct mii_softc *sc)
{
mii_phy_reset(sc);
PHY_WRITE(sc, MII_LXTPHY_IER,
PHY_READ(sc, MII_LXTPHY_IER) & ~IER_INTEN);
}
static void
lxtphy_set_tp(struct mii_softc *sc)
{
int cfg;
cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
cfg &= ~CONFIG_100BASEFX;
PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
}
static void
lxtphy_set_fx(struct mii_softc *sc)
{
int cfg;
cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
cfg |= CONFIG_100BASEFX;
PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
}
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