mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-29 12:03:03 +00:00
312 lines
8.9 KiB
C
312 lines
8.9 KiB
C
/* 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.
|
|
* 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.
|
|
*/
|
|
|
|
#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),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
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_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 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;
|
|
struct mii_attach_args *ma;
|
|
struct mii_data *mii;
|
|
const char *nic;
|
|
|
|
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 = lxtphy_service;
|
|
sc->mii_pdata = mii;
|
|
|
|
mii->mii_instance++;
|
|
|
|
mii_phy_reset(sc);
|
|
|
|
sc->mii_capabilities =
|
|
PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
|
|
device_printf(dev, " ");
|
|
|
|
/*
|
|
* On Apple BMAC controllers, we end up in a weird state
|
|
* of partially-completed autonegotiation on boot. So
|
|
* force autonegotation to try again.
|
|
*/
|
|
nic = device_get_name(device_get_parent(sc->mii_dev));
|
|
if (strcmp(nic, "bm") == 0)
|
|
sc->mii_flags |= MIIF_FORCEANEG | MIIF_NOISOLATE;
|
|
|
|
#define ADD(m, c) ifmedia_add(&mii->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;
|
|
int reg;
|
|
|
|
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;
|
|
|
|
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 we're not currently selected, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
return (0);
|
|
if (mii_phy_tick(sc) == EJUSTRETURN)
|
|
return (0);
|
|
break;
|
|
}
|
|
|
|
/* Update the media status. */
|
|
lxtphy_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;
|
|
} else
|
|
mii->mii_media_active = ife->ifm_media;
|
|
}
|
|
|
|
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);
|
|
}
|