5358725ab4
(BUS_PROBE_DEFAULT, BUS_PROBE_GENERIC etc). There is no functional changes. Reviewed by: oleg, scottl
345 lines
9.1 KiB
C
345 lines
9.1 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 <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 <pci/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),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
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 *);
|
|
|
|
static int
|
|
rlphy_probe(device_t dev)
|
|
{
|
|
struct mii_attach_args *ma;
|
|
device_t parent;
|
|
|
|
ma = device_get_ivars(dev);
|
|
parent = device_get_parent(device_get_parent(dev));
|
|
|
|
/* Test for RealTek 8201L PHY */
|
|
if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_REALTEK &&
|
|
MII_MODEL(ma->mii_id2) == MII_MODEL_REALTEK_RTL8201L) {
|
|
device_set_desc(dev, MII_STR_REALTEK_RTL8201L);
|
|
return(BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
/*
|
|
* RealTek PHY doesn't have vendor/device ID registers:
|
|
* the rl driver fakes up a return value of all zeros.
|
|
*/
|
|
if (MII_OUI(ma->mii_id1, ma->mii_id2) != 0 ||
|
|
MII_MODEL(ma->mii_id2) != 0)
|
|
return (ENXIO);
|
|
|
|
/*
|
|
* Make sure the parent is an `rl' or an `re'.
|
|
*/
|
|
if (strcmp(device_get_name(parent), "rl") != 0 &&
|
|
strcmp(device_get_name(parent), "re") != 0)
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "RealTek internal media interface");
|
|
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
rlphy_attach(device_t dev)
|
|
{
|
|
struct mii_softc *sc;
|
|
struct mii_attach_args *ma;
|
|
struct mii_data *mii;
|
|
|
|
sc = device_get_softc(dev);
|
|
ma = device_get_ivars(dev);
|
|
sc->mii_dev = device_get_parent(dev);
|
|
mii = device_get_softc(sc->mii_dev);
|
|
|
|
/*
|
|
* The RealTek PHY can never be isolated, so never allow non-zero
|
|
* instances!
|
|
*/
|
|
if (mii->mii_instance != 0) {
|
|
device_printf(dev, "ignoring this PHY, non-zero instance\n");
|
|
return(ENXIO);
|
|
}
|
|
|
|
LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
|
|
|
|
sc->mii_inst = mii->mii_instance;
|
|
sc->mii_phy = ma->mii_phyno;
|
|
sc->mii_service = rlphy_service;
|
|
sc->mii_pdata = mii;
|
|
mii->mii_instance++;
|
|
|
|
sc->mii_flags |= MIIF_NOISOLATE;
|
|
|
|
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
|
|
|
|
#if 0 /* See above. */
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
|
|
BMCR_ISO);
|
|
#endif
|
|
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
|
|
BMCR_LOOP|BMCR_S100);
|
|
|
|
mii_phy_reset(sc);
|
|
|
|
sc->mii_capabilities =
|
|
PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
|
|
device_printf(dev, " ");
|
|
mii_add_media(sc);
|
|
printf("\n");
|
|
#undef ADD
|
|
MIIBUS_MEDIAINIT(sc->mii_dev);
|
|
return(0);
|
|
}
|
|
|
|
static int
|
|
rlphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
|
|
{
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
|
|
/*
|
|
* We can't isolate the RealTek PHY, so it has to be the only one!
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
panic("rlphy_service: can't isolate RealTek PHY");
|
|
|
|
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;
|
|
|
|
switch (IFM_SUBTYPE(ife->ifm_media)) {
|
|
case IFM_AUTO:
|
|
/*
|
|
* If we're already in auto mode, just return.
|
|
*/
|
|
if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
|
|
return (0);
|
|
(void) mii_phy_auto(sc);
|
|
break;
|
|
case IFM_100_T4:
|
|
/*
|
|
* XXX Not supported as a manual setting right now.
|
|
*/
|
|
return (EINVAL);
|
|
default:
|
|
/*
|
|
* BMCR data is stored in the ifmedia entry.
|
|
*/
|
|
PHY_WRITE(sc, MII_ANAR,
|
|
mii_anar(ife->ifm_media));
|
|
PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
|
|
}
|
|
break;
|
|
|
|
case MII_TICK:
|
|
/*
|
|
* Is the interface even up?
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
return (0);
|
|
|
|
/*
|
|
* Only used for autonegotiation.
|
|
*/
|
|
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
|
|
break;
|
|
|
|
/*
|
|
* The RealTek PHY's autonegotiation doesn't need to be
|
|
* kicked; it continues in the background.
|
|
*/
|
|
break;
|
|
}
|
|
|
|
/* Update the media status. */
|
|
rlphy_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;
|
|
int bmsr, bmcr, anlpar;
|
|
device_t parent;
|
|
|
|
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_T4)
|
|
mii->mii_media_active |= IFM_100_T4;
|
|
else if (anlpar & ANLPAR_TX_FD)
|
|
mii->mii_media_active |= IFM_100_TX|IFM_FDX;
|
|
else if (anlpar & ANLPAR_TX)
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
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;
|
|
else
|
|
mii->mii_media_active |= IFM_NONE;
|
|
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) 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.
|
|
*/
|
|
parent = device_get_parent(phy->mii_dev);
|
|
if (strcmp(device_get_name(parent), "rl") != 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;
|
|
}
|
|
|
|
} else
|
|
mii->mii_media_active = mii_media_from_bmcr(bmcr);
|
|
}
|