311 lines
9.4 KiB
C
311 lines
9.4 KiB
C
/* $NetBSD: gphyter.c,v 1.19 2006/11/16 21:24:07 christos Exp $ */
|
|
|
|
/*-
|
|
* 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.
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* driver for National Semiconductor's DP83891 and DP83861 `Gig PHYTER'
|
|
* ethernet 10/100/1000 PHYs. The DP83891 is an older, non-firmware-
|
|
* driven version of the DP83861.
|
|
*
|
|
* Data Sheet available from www.national.com
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: gphyter.c,v 1.19 2006/11/16 21:24:07 christos Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/errno.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_media.h>
|
|
|
|
#include <dev/mii/mii.h>
|
|
#include <dev/mii/miivar.h>
|
|
#include <dev/mii/miidevs.h>
|
|
|
|
#include <dev/mii/gphyterreg.h>
|
|
|
|
static int gphytermatch(struct device *, struct cfdata *, void *);
|
|
static void gphyterattach(struct device *, struct device *, void *);
|
|
|
|
CFATTACH_DECL(gphyter, sizeof(struct mii_softc),
|
|
gphytermatch, gphyterattach, mii_phy_detach, mii_phy_activate);
|
|
|
|
static int gphyter_service(struct mii_softc *, struct mii_data *, int);
|
|
static void gphyter_status(struct mii_softc *);
|
|
|
|
static const struct mii_phy_funcs gphyter_funcs = {
|
|
gphyter_service, gphyter_status, mii_phy_reset,
|
|
};
|
|
|
|
static const struct mii_phydesc gphyters[] = {
|
|
{ MII_OUI_xxNATSEMI, MII_MODEL_xxNATSEMI_DP83861,
|
|
MII_STR_xxNATSEMI_DP83861 },
|
|
|
|
{ MII_OUI_xxNATSEMI, MII_MODEL_xxNATSEMI_DP83891,
|
|
MII_STR_xxNATSEMI_DP83891 },
|
|
|
|
{ 0, 0,
|
|
NULL },
|
|
};
|
|
|
|
static int
|
|
gphytermatch(struct device *parent, struct cfdata *match,
|
|
void *aux)
|
|
{
|
|
struct mii_attach_args *ma = aux;
|
|
|
|
if (mii_phy_match(ma, gphyters) != NULL)
|
|
return (10);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
gphyterattach(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct mii_softc *sc = (struct mii_softc *)self;
|
|
struct mii_attach_args *ma = aux;
|
|
struct mii_data *mii = ma->mii_data;
|
|
const struct mii_phydesc *mpd;
|
|
int anar, strap;
|
|
|
|
mpd = mii_phy_match(ma, gphyters);
|
|
aprint_naive(": Media interface\n");
|
|
aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
|
|
|
|
sc->mii_inst = mii->mii_instance;
|
|
sc->mii_phy = ma->mii_phyno;
|
|
sc->mii_funcs = &gphyter_funcs;
|
|
sc->mii_pdata = mii;
|
|
sc->mii_flags = ma->mii_flags;
|
|
sc->mii_anegticks = MII_ANEGTICKS;
|
|
|
|
PHY_RESET(sc);
|
|
|
|
sc->mii_capabilities =
|
|
PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
|
|
if (sc->mii_capabilities & BMSR_EXTSTAT)
|
|
sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
|
|
|
|
/*
|
|
* The Gig PHYTER seems to have the 10baseT BMSR bits
|
|
* hard-wired to 0, even though the device supports
|
|
* 10baseT. What we do instead is read the post-reset
|
|
* ANAR, who's 10baseT-related bits are set by strapping
|
|
* pin 180, and fake the BMSR bits.
|
|
*/
|
|
anar = PHY_READ(sc, MII_ANAR);
|
|
if (anar & ANAR_10)
|
|
sc->mii_capabilities |= (BMSR_10THDX & ma->mii_capmask);
|
|
if (anar & ANAR_10_FD)
|
|
sc->mii_capabilities |= (BMSR_10TFDX & ma->mii_capmask);
|
|
|
|
aprint_normal("%s: ", sc->mii_dev.dv_xname);
|
|
if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
|
|
(sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
|
|
aprint_error("no media present");
|
|
else
|
|
mii_phy_add_media(sc);
|
|
aprint_normal("\n");
|
|
|
|
strap = PHY_READ(sc, MII_GPHYTER_STRAP);
|
|
aprint_normal("%s: strapped to %s mode", sc->mii_dev.dv_xname,
|
|
(strap & STRAP_MS_VAL) ? "master" : "slave");
|
|
if (strap & STRAP_NC_MODE)
|
|
aprint_normal(", pre-C5 BCM5400 compat enabled");
|
|
aprint_normal("\n");
|
|
}
|
|
|
|
static int
|
|
gphyter_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;
|
|
|
|
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;
|
|
|
|
case MII_DOWN:
|
|
mii_phy_down(sc);
|
|
return (0);
|
|
}
|
|
|
|
/* Update the media status. */
|
|
mii_phy_status(sc);
|
|
|
|
/* Callback if something changed. */
|
|
mii_phy_update(sc, cmd);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
gphyter_status(struct mii_softc *sc)
|
|
{
|
|
struct mii_data *mii = sc->mii_pdata;
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
int bmsr, bmcr, physup, gtsr;
|
|
|
|
mii->mii_media_status = IFM_AVALID;
|
|
mii->mii_media_active = IFM_ETHER;
|
|
|
|
bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
|
|
|
|
physup = PHY_READ(sc, MII_GPHYTER_PHY_SUP);
|
|
|
|
if (physup & PHY_SUP_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 of autonegotiation
|
|
* has completed (or it's disabled).
|
|
*/
|
|
if ((bmsr & BMSR_ACOMP) == 0) {
|
|
/* Erg, still trying, I guess... */
|
|
mii->mii_media_active |= IFM_NONE;
|
|
return;
|
|
}
|
|
|
|
switch (physup & (PHY_SUP_SPEED1|PHY_SUP_SPEED0)) {
|
|
case PHY_SUP_SPEED1:
|
|
mii->mii_media_active |= IFM_1000_T;
|
|
gtsr = PHY_READ(sc, MII_100T2SR);
|
|
if (gtsr & GTSR_MS_RES)
|
|
mii->mii_media_active |= IFM_ETH_MASTER;
|
|
break;
|
|
|
|
case PHY_SUP_SPEED0:
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
break;
|
|
|
|
case 0:
|
|
mii->mii_media_active |= IFM_10_T;
|
|
break;
|
|
|
|
default:
|
|
mii->mii_media_active |= IFM_NONE;
|
|
mii->mii_media_status = 0;
|
|
}
|
|
if (physup & PHY_SUP_DUPLEX)
|
|
mii->mii_media_active |=
|
|
IFM_FDX | mii_phy_flowstatus(sc);
|
|
} else
|
|
mii->mii_media_active = ife->ifm_media;
|
|
}
|