406 lines
10 KiB
C
406 lines
10 KiB
C
/*
|
|
* Copyright (c) 2000
|
|
* Bill Paul <wpaul@ee.columbia.edu>. 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 Bill Paul.
|
|
* 4. Neither the name of the author nor the names of any co-contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Driver for the Broadcom BCR5400 1000baseTX PHY. Speed is always
|
|
* 1000mbps; all we need to negotiate here is full or half duplex.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.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 <dev/mii/miidevs.h>
|
|
|
|
#include <dev/mii/brgphyreg.h>
|
|
|
|
#include "miibus_if.h"
|
|
|
|
#if !defined(lint)
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif
|
|
|
|
static int brgphy_probe __P((device_t));
|
|
static int brgphy_attach __P((device_t));
|
|
static int brgphy_detach __P((device_t));
|
|
|
|
static device_method_t brgphy_methods[] = {
|
|
/* device interface */
|
|
DEVMETHOD(device_probe, brgphy_probe),
|
|
DEVMETHOD(device_attach, brgphy_attach),
|
|
DEVMETHOD(device_detach, brgphy_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static devclass_t brgphy_devclass;
|
|
|
|
static driver_t brgphy_driver = {
|
|
"brgphy",
|
|
brgphy_methods,
|
|
sizeof(struct mii_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
|
|
|
|
int brgphy_service __P((struct mii_softc *, struct mii_data *, int));
|
|
void brgphy_status __P((struct mii_softc *));
|
|
|
|
static int brgphy_mii_phy_auto __P((struct mii_softc *, int));
|
|
extern void mii_phy_auto_timeout __P((void *));
|
|
|
|
static int brgphy_probe(dev)
|
|
device_t dev;
|
|
{
|
|
struct mii_attach_args *ma;
|
|
|
|
ma = device_get_ivars(dev);
|
|
|
|
if (MII_OUI(ma->mii_id1, ma->mii_id2) != MII_OUI_xxBROADCOM ||
|
|
MII_MODEL(ma->mii_id2) != MII_MODEL_xxBROADCOM_BCM5400)
|
|
return(ENXIO);
|
|
|
|
device_set_desc(dev, MII_STR_xxBROADCOM_BCM5400);
|
|
|
|
return(0);
|
|
}
|
|
|
|
static int brgphy_attach(dev)
|
|
device_t dev;
|
|
{
|
|
struct mii_softc *sc;
|
|
struct mii_attach_args *ma;
|
|
struct mii_data *mii;
|
|
const char *sep = "";
|
|
|
|
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 = brgphy_service;
|
|
sc->mii_pdata = mii;
|
|
|
|
sc->mii_flags |= MIIF_NOISOLATE;
|
|
mii->mii_instance++;
|
|
|
|
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
|
|
#define PRINT(s) printf("%s%s", sep, s); sep = ", "
|
|
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
|
|
BMCR_ISO);
|
|
#if 0
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
|
|
BMCR_LOOP|BMCR_S100);
|
|
#endif
|
|
|
|
mii_phy_reset(sc);
|
|
|
|
device_printf(dev, " ");
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_TX, 0, sc->mii_inst),
|
|
BRGPHY_BMCR_FDX);
|
|
PRINT("1000baseTX");
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_TX, IFM_FDX, sc->mii_inst), 0);
|
|
PRINT("1000baseTX-FDX");
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
|
|
PRINT("auto");
|
|
|
|
printf("\n");
|
|
#undef ADD
|
|
#undef PRINT
|
|
|
|
MIIBUS_MEDIAINIT(sc->mii_dev);
|
|
return(0);
|
|
}
|
|
|
|
static int brgphy_detach(dev)
|
|
device_t dev;
|
|
{
|
|
struct mii_softc *sc;
|
|
struct mii_data *mii;
|
|
|
|
sc = device_get_softc(dev);
|
|
mii = device_get_softc(device_get_parent(dev));
|
|
sc->mii_dev = NULL;
|
|
LIST_REMOVE(sc, mii_list);
|
|
|
|
return(0);
|
|
}
|
|
int
|
|
brgphy_service(sc, mii, cmd)
|
|
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;
|
|
|
|
PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
|
|
BRGPHY_PHY_EXTCTL_HIGH_LA|BRGPHY_PHY_EXTCTL_EN_LTR);
|
|
PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
|
|
BRGPHY_AUXCTL_LONG_PKT|BRGPHY_AUXCTL_TX_TST);
|
|
PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
|
|
|
|
switch (IFM_SUBTYPE(ife->ifm_media)) {
|
|
case IFM_AUTO:
|
|
#ifdef foo
|
|
/*
|
|
* If we're already in auto mode, just return.
|
|
*/
|
|
if (PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_AUTOEN)
|
|
return (0);
|
|
#endif
|
|
(void) brgphy_mii_phy_auto(sc, 1);
|
|
break;
|
|
case IFM_1000_TX:
|
|
if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
|
|
PHY_WRITE(sc, BRGPHY_MII_BMCR,
|
|
BRGPHY_BMCR_FDX|BRGPHY_BMCR_SPD1);
|
|
} else {
|
|
PHY_WRITE(sc, BRGPHY_MII_BMCR,
|
|
BRGPHY_BMCR_SPD1);
|
|
}
|
|
PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
|
|
|
|
/*
|
|
* When settning the link manually, one side must
|
|
* be the master and the other the slave. However
|
|
* ifmedia doesn't give us a good way to specify
|
|
* this, so we fake it by using one of the LINK
|
|
* flags. If LINK0 is set, we program the PHY to
|
|
* be a master, otherwise it's a slave.
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_LINK0)) {
|
|
PHY_WRITE(sc, BRGPHY_MII_1000CTL,
|
|
BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC);
|
|
} else {
|
|
PHY_WRITE(sc, BRGPHY_MII_1000CTL,
|
|
BRGPHY_1000CTL_MSE);
|
|
}
|
|
break;
|
|
case IFM_100_T4:
|
|
case IFM_100_TX:
|
|
case IFM_10_T:
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
break;
|
|
|
|
case MII_TICK:
|
|
/*
|
|
* If we're not currently selected, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
return (0);
|
|
|
|
/*
|
|
* Only used for autonegotiation.
|
|
*/
|
|
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
|
|
return (0);
|
|
|
|
/*
|
|
* Is the interface even up?
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
return (0);
|
|
|
|
/*
|
|
* Only retry autonegotiation every 5 seconds.
|
|
*/
|
|
if (++sc->mii_ticks != 5)
|
|
return (0);
|
|
|
|
sc->mii_ticks = 0;
|
|
|
|
/*
|
|
* Check to see if we have link. If we do, we don't
|
|
* need to restart the autonegotiation process. Read
|
|
* the BMSR twice in case it's latched.
|
|
*/
|
|
reg = PHY_READ(sc, BRGPHY_MII_AUXSTS);
|
|
if (reg & BRGPHY_AUXSTS_LINK)
|
|
break;
|
|
|
|
mii_phy_reset(sc);
|
|
if (brgphy_mii_phy_auto(sc, 0) == EJUSTRETURN)
|
|
return(0);
|
|
break;
|
|
}
|
|
|
|
/* Update the media status. */
|
|
brgphy_status(sc);
|
|
|
|
/* Callback if something changed. */
|
|
if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
|
|
MIIBUS_STATCHG(sc->mii_dev);
|
|
sc->mii_active = mii->mii_media_active;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
brgphy_status(sc)
|
|
struct mii_softc *sc;
|
|
{
|
|
struct mii_data *mii = sc->mii_pdata;
|
|
int bmsr, bmcr, anlpar;
|
|
|
|
mii->mii_media_status = IFM_AVALID;
|
|
mii->mii_media_active = IFM_ETHER;
|
|
|
|
bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
|
|
if (PHY_READ(sc, BRGPHY_MII_AUXSTS) & BRGPHY_AUXSTS_LINK)
|
|
mii->mii_media_status |= IFM_ACTIVE;
|
|
|
|
bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
|
|
|
|
if (bmcr & BRGPHY_BMCR_LOOP)
|
|
mii->mii_media_active |= IFM_LOOP;
|
|
|
|
if (bmcr & BRGPHY_BMCR_AUTOEN) {
|
|
if ((bmsr & BRGPHY_BMSR_ACOMP) == 0) {
|
|
/* Erg, still trying, I guess... */
|
|
mii->mii_media_active |= IFM_NONE;
|
|
return;
|
|
}
|
|
|
|
mii->mii_media_active |= IFM_1000_TX;
|
|
anlpar = PHY_READ(sc, BRGPHY_MII_AUXSTS);
|
|
if ((anlpar & BRGPHY_AUXSTS_AN_RES) == BRGPHY_RES_1000FD)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
if ((anlpar & BRGPHY_AUXSTS_AN_RES) == BRGPHY_RES_1000HD)
|
|
mii->mii_media_active |= IFM_HDX;
|
|
return;
|
|
}
|
|
|
|
mii->mii_media_active |= IFM_1000_TX;
|
|
if (bmcr & BRGPHY_BMCR_FDX)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
else
|
|
mii->mii_media_active |= IFM_HDX;
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static int
|
|
brgphy_mii_phy_auto(mii, waitfor)
|
|
struct mii_softc *mii;
|
|
int waitfor;
|
|
{
|
|
int bmsr, i;
|
|
|
|
if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) {
|
|
PHY_WRITE(mii, BRGPHY_MII_1000CTL,
|
|
BRGPHY_1000CTL_AFD|BRGPHY_1000CTL_AHD);
|
|
PHY_WRITE(mii, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
|
|
PHY_WRITE(mii, BRGPHY_MII_BMCR,
|
|
BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
|
|
PHY_WRITE(mii, BRGPHY_MII_IMR, 0xFF00);
|
|
}
|
|
|
|
if (waitfor) {
|
|
/* Wait 500ms for it to complete. */
|
|
for (i = 0; i < 500; i++) {
|
|
if ((bmsr = PHY_READ(mii, BRGPHY_MII_BMSR)) &
|
|
BRGPHY_BMSR_ACOMP)
|
|
return (0);
|
|
DELAY(1000);
|
|
#if 0
|
|
if ((bmsr & BMSR_ACOMP) == 0)
|
|
printf("%s: autonegotiation failed to complete\n",
|
|
mii->mii_dev.dv_xname);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Don't need to worry about clearing MIIF_DOINGAUTO.
|
|
* If that's set, a timeout is pending, and it will
|
|
* clear the flag.
|
|
*/
|
|
return (EIO);
|
|
}
|
|
|
|
/*
|
|
* Just let it finish asynchronously. This is for the benefit of
|
|
* the tick handler driving autonegotiation. Don't want 500ms
|
|
* delays all the time while the system is running!
|
|
*/
|
|
if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) {
|
|
mii->mii_flags |= MIIF_DOINGAUTO;
|
|
timeout(mii_phy_auto_timeout, mii, hz >> 1);
|
|
}
|
|
return (EJUSTRETURN);
|
|
}
|