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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/drm/radeon/@/dev/mii/bmtphy.c |
/*-
* 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: release/9.1.0/sys/dev/mii/bmtphy.c 229093 2011-12-31 14:12:12Z hselasky $");
/*
* 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:
/*
* If the interface is not up, don't do anything.
*/
if ((mii->mii_ifp->if_flags & 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
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);
}
}