262 lines
7.3 KiB
C
262 lines
7.3 KiB
C
/*-
|
|
* Copyright (c) 1997, 1998, 1999
|
|
* Bill Paul <wpaul@ctr.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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* driver for RealTek 8139 internal PHYs
|
|
*/
|
|
|
|
#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 <sys/taskqueue.h> /* XXXGL: if_rlreg.h contamination */
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_arp.h>
|
|
#include <net/if_media.h>
|
|
|
|
#include <dev/mii/mii.h>
|
|
#include <dev/mii/miivar.h>
|
|
#include "miidevs.h"
|
|
|
|
#include <machine/bus.h>
|
|
#include <dev/rl/if_rlreg.h>
|
|
|
|
#include "miibus_if.h"
|
|
|
|
static int rlphy_probe(device_t);
|
|
static int rlphy_attach(device_t);
|
|
|
|
static device_method_t rlphy_methods[] = {
|
|
/* device interface */
|
|
DEVMETHOD(device_probe, rlphy_probe),
|
|
DEVMETHOD(device_attach, rlphy_attach),
|
|
DEVMETHOD(device_detach, mii_phy_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static devclass_t rlphy_devclass;
|
|
|
|
static driver_t rlphy_driver = {
|
|
"rlphy",
|
|
rlphy_methods,
|
|
sizeof(struct mii_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(rlphy, miibus, rlphy_driver, rlphy_devclass, 0, 0);
|
|
|
|
static int rlphy_service(struct mii_softc *, struct mii_data *, int);
|
|
static void rlphy_status(struct mii_softc *);
|
|
|
|
/*
|
|
* RealTek internal PHYs don't have vendor/device ID registers;
|
|
* re(4) and rl(4) fake up a return value of all zeros.
|
|
*/
|
|
static const struct mii_phydesc rlintphys[] = {
|
|
{ 0, 0, "RealTek internal media interface" },
|
|
MII_PHY_END
|
|
};
|
|
|
|
static const struct mii_phydesc rlphys[] = {
|
|
MII_PHY_DESC(yyREALTEK, RTL8201L),
|
|
MII_PHY_DESC(REALTEK, RTL8201E),
|
|
MII_PHY_DESC(xxICPLUS, IP101),
|
|
MII_PHY_END
|
|
};
|
|
|
|
static const struct mii_phy_funcs rlphy_funcs = {
|
|
rlphy_service,
|
|
rlphy_status,
|
|
mii_phy_reset
|
|
};
|
|
|
|
static int
|
|
rlphy_probe(device_t dev)
|
|
{
|
|
const char *nic;
|
|
int rv;
|
|
|
|
rv = mii_phy_dev_probe(dev, rlphys, BUS_PROBE_DEFAULT);
|
|
if (rv <= 0)
|
|
return (rv);
|
|
|
|
nic = device_get_name(device_get_parent(device_get_parent(dev)));
|
|
if (strcmp(nic, "rl") == 0 || strcmp(nic, "re") == 0)
|
|
return (mii_phy_dev_probe(dev, rlintphys, BUS_PROBE_DEFAULT));
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
rlphy_attach(device_t dev)
|
|
{
|
|
|
|
/*
|
|
* The RealTek PHY can never be isolated.
|
|
*/
|
|
mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
|
|
&rlphy_funcs, 1);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
rlphy_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:
|
|
/*
|
|
* The RealTek PHY's autonegotiation doesn't need to be
|
|
* kicked; it continues in the background.
|
|
*/
|
|
break;
|
|
}
|
|
|
|
/* Update the media status. */
|
|
PHY_STATUS(sc);
|
|
|
|
/* Callback if something changed. */
|
|
mii_phy_update(sc, cmd);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
rlphy_status(struct mii_softc *phy)
|
|
{
|
|
struct mii_data *mii = phy->mii_pdata;
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
int bmsr, bmcr, anlpar;
|
|
|
|
mii->mii_media_status = IFM_AVALID;
|
|
mii->mii_media_active = IFM_ETHER;
|
|
|
|
bmsr = PHY_READ(phy, MII_BMSR) | PHY_READ(phy, MII_BMSR);
|
|
if (bmsr & BMSR_LINK)
|
|
mii->mii_media_status |= IFM_ACTIVE;
|
|
|
|
bmcr = PHY_READ(phy, 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) {
|
|
/*
|
|
* NWay autonegotiation takes the highest-order common
|
|
* bit of the ANAR and ANLPAR (i.e. best media advertised
|
|
* both by us and our link partner).
|
|
*/
|
|
if ((bmsr & BMSR_ACOMP) == 0) {
|
|
/* Erg, still trying, I guess... */
|
|
mii->mii_media_active |= IFM_NONE;
|
|
return;
|
|
}
|
|
|
|
if ((anlpar = PHY_READ(phy, MII_ANAR) &
|
|
PHY_READ(phy, MII_ANLPAR))) {
|
|
if (anlpar & ANLPAR_TX_FD)
|
|
mii->mii_media_active |= IFM_100_TX|IFM_FDX;
|
|
else if (anlpar & ANLPAR_T4)
|
|
mii->mii_media_active |= IFM_100_T4|IFM_HDX;
|
|
else if (anlpar & ANLPAR_TX)
|
|
mii->mii_media_active |= IFM_100_TX|IFM_HDX;
|
|
else if (anlpar & ANLPAR_10_FD)
|
|
mii->mii_media_active |= IFM_10_T|IFM_FDX;
|
|
else if (anlpar & ANLPAR_10)
|
|
mii->mii_media_active |= IFM_10_T|IFM_HDX;
|
|
else
|
|
mii->mii_media_active |= IFM_NONE;
|
|
if ((mii->mii_media_active & IFM_FDX) != 0)
|
|
mii->mii_media_active |=
|
|
mii_phy_flowstatus(phy);
|
|
return;
|
|
}
|
|
/*
|
|
* If the other side doesn't support NWAY, then the
|
|
* best we can do is determine if we have a 10Mbps or
|
|
* 100Mbps link. There's no way to know if the link
|
|
* is full or half duplex, so we default to half duplex
|
|
* and hope that the user is clever enough to manually
|
|
* change the media settings if we're wrong.
|
|
*/
|
|
|
|
/*
|
|
* The RealTek PHY supports non-NWAY link speed
|
|
* detection, however it does not report the link
|
|
* detection results via the ANLPAR or BMSR registers.
|
|
* (What? RealTek doesn't do things the way everyone
|
|
* else does? I'm just shocked, shocked I tell you.)
|
|
* To determine the link speed, we have to do one
|
|
* of two things:
|
|
*
|
|
* - If this is a standalone RealTek RTL8201(L) or
|
|
* workalike PHY, we can determine the link speed by
|
|
* testing bit 0 in the magic, vendor-specific register
|
|
* at offset 0x19.
|
|
*
|
|
* - If this is a RealTek MAC with integrated PHY, we
|
|
* can test the 'SPEED10' bit of the MAC's media status
|
|
* register.
|
|
*/
|
|
if (!(phy->mii_mpd_model == 0 && phy->mii_mpd_rev == 0)) {
|
|
if (PHY_READ(phy, 0x0019) & 0x01)
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
else
|
|
mii->mii_media_active |= IFM_10_T;
|
|
} else {
|
|
if (PHY_READ(phy, RL_MEDIASTAT) &
|
|
RL_MEDIASTAT_SPEED10)
|
|
mii->mii_media_active |= IFM_10_T;
|
|
else
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
}
|
|
mii->mii_media_active |= IFM_HDX;
|
|
} else
|
|
mii->mii_media_active = ife->ifm_media;
|
|
}
|