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freebsd/sys/dev/mii/bmtphy.c
Gleb Smirnoff 61a3ac6e27 The MII layer shouldn't care about administrative status of an 
interface. Make MII drivers forget about 'struct ifnet'.

Later plan is to provide an administrative downcall from ifnet
layer into drivers, to inform them about administrative status
change. If someone thinks that processing MII events for an
administratively down interface is a big problem, then drivers
would turn MII processing off.

The following MII drivers do evil things, like strcmp() on
driver name, so they still need knowledge of ifnet and thus
include if_var.h. They all need to be fixed:

sys/dev/mii/brgphy.c
sys/dev/mii/e1000phy.c
sys/dev/mii/ip1000phy.c
sys/dev/mii/jmphy.c
sys/dev/mii/nsphy.c
sys/dev/mii/rgephy.c
sys/dev/mii/truephy.c

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2013-10-26 18:40:17 +00:00

257 lines
7.2 KiB
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/*-
* Copyright (c) 1998, 1999, 2000, 2001 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.
*
* from: NetBSD: bmtphy.c,v 1.8 2002/07/03 06:25:50 simonb Exp
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Driver for the Broadcom BCM5201/BCM5202 "Mini-Theta" PHYs. This also
* drives the PHY on the 3Com 3c905C. The 3c905C's PHY is described in
* the 3c905C data sheet.
*/
#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_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include "miidevs.h"
#include <dev/mii/bmtphyreg.h>
#include "miibus_if.h"
static int bmtphy_probe(device_t);
static int bmtphy_attach(device_t);
static device_method_t bmtphy_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, bmtphy_probe),
DEVMETHOD(device_attach, bmtphy_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD_END
};
static devclass_t bmtphy_devclass;
static driver_t bmtphy_driver = {
"bmtphy",
bmtphy_methods,
sizeof(struct mii_softc)
};
DRIVER_MODULE(bmtphy, miibus, bmtphy_driver, bmtphy_devclass, 0, 0);
static int bmtphy_service(struct mii_softc *, struct mii_data *, int);
static void bmtphy_status(struct mii_softc *);
static void bmtphy_reset(struct mii_softc *);
static const struct mii_phydesc bmtphys_dp[] = {
MII_PHY_DESC(xxBROADCOM, BCM4401),
MII_PHY_DESC(xxBROADCOM, BCM5201),
MII_PHY_DESC(xxBROADCOM, BCM5214),
MII_PHY_DESC(xxBROADCOM, BCM5221),
MII_PHY_DESC(xxBROADCOM, BCM5222),
MII_PHY_END
};
static const struct mii_phydesc bmtphys_lp[] = {
MII_PHY_DESC(xxBROADCOM, 3C905B),
MII_PHY_DESC(xxBROADCOM, 3C905C),
MII_PHY_END
};
static const struct mii_phy_funcs bmtphy_funcs = {
bmtphy_service,
bmtphy_status,
bmtphy_reset
};
static int
bmtphy_probe(device_t dev)
{
int rval;
/* Let exphy(4) take precedence for these. */
rval = mii_phy_dev_probe(dev, bmtphys_lp, BUS_PROBE_LOW_PRIORITY);
if (rval <= 0)
return (rval);
return (mii_phy_dev_probe(dev, bmtphys_dp, BUS_PROBE_DEFAULT));
}
static int
bmtphy_attach(device_t dev)
{
mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &bmtphy_funcs, 1);
return (0);
}
static int
bmtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
switch (cmd) {
case MII_POLLSTAT:
break;
case MII_MEDIACHG:
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
bmtphy_status(struct mii_softc *sc)
{
struct mii_data *mii;
struct ifmedia_entry *ife;
int bmsr, bmcr, aux_csr;
mii = sc->mii_pdata;
ife = mii->mii_media.ifm_cur;
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) {
/*
* The media status bits are only valid if autonegotiation
* has completed (or it's disabled).
*/
if ((bmsr & BMSR_ACOMP) == 0) {
/* Erg, still trying, I guess... */
mii->mii_media_active |= IFM_NONE;
return;
}
aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR);
if (aux_csr & AUX_CSR_SPEED)
mii->mii_media_active |= IFM_100_TX;
else
mii->mii_media_active |= IFM_10_T;
if (aux_csr & AUX_CSR_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
bmtphy_reset(struct mii_softc *sc)
{
u_int16_t data;
mii_phy_reset(sc);
if (sc->mii_mpd_model == MII_MODEL_xxBROADCOM_BCM5221) {
/* Enable shadow register mode. */
data = PHY_READ(sc, 0x1f);
PHY_WRITE(sc, 0x1f, data | 0x0080);
/* Enable APD (Auto PowerDetect). */
data = PHY_READ(sc, MII_BMTPHY_AUX2);
PHY_WRITE(sc, MII_BMTPHY_AUX2, data | 0x0020);
/* Enable clocks across APD for Auto-MDIX functionality. */
data = PHY_READ(sc, MII_BMTPHY_INTR);
PHY_WRITE(sc, MII_BMTPHY_INTR, data | 0x0004);
/* Disable shadow register mode. */
data = PHY_READ(sc, 0x1f);
PHY_WRITE(sc, 0x1f, data & ~0x0080);
}
}
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