mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
9a54cbb95d
the falling edge of a media state change. This is in preparation for media state change notification to the routing socket. No objections by: sam, wpaul, ru, bms Brucification by: bde
300 lines
7.0 KiB
C
300 lines
7.0 KiB
C
/*-
|
|
* Copyright (c) 2001-2003, Shunsuke Akiyama <akiyama@FreeBSD.org>.
|
|
* 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 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 AUTHOR 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.
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* driver for RealTek RTL8150 internal PHY
|
|
*/
|
|
|
|
#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_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/mii/ruephyreg.h>
|
|
|
|
#include "miibus_if.h"
|
|
|
|
static int ruephy_probe(device_t);
|
|
static int ruephy_attach(device_t);
|
|
|
|
static device_method_t ruephy_methods[] = {
|
|
/* device interface */
|
|
DEVMETHOD(device_probe, ruephy_probe),
|
|
DEVMETHOD(device_attach, ruephy_attach),
|
|
DEVMETHOD(device_detach, mii_phy_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static devclass_t ruephy_devclass;
|
|
|
|
static driver_t ruephy_driver = {
|
|
"ruephy",
|
|
ruephy_methods,
|
|
sizeof(struct mii_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(ruephy, miibus, ruephy_driver, ruephy_devclass, 0, 0);
|
|
|
|
static int ruephy_service(struct mii_softc *, struct mii_data *, int);
|
|
static void ruephy_reset(struct mii_softc *);
|
|
static void ruephy_status(struct mii_softc *);
|
|
|
|
static int
|
|
ruephy_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));
|
|
|
|
/*
|
|
* RealTek RTL8150 PHY doesn't have vendor/device ID registers:
|
|
* the rue 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 'rue'.
|
|
*/
|
|
if (strcmp(device_get_name(parent), "rue") != 0)
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "RealTek RTL8150 internal media interface");
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ruephy_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 = ruephy_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)
|
|
|
|
ruephy_reset(sc);
|
|
|
|
sc->mii_capabilities =
|
|
PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
|
|
device_printf(dev, " ");
|
|
mii_phy_add_media(sc);
|
|
printf("\n");
|
|
#undef ADD
|
|
|
|
MIIBUS_MEDIAINIT(sc->mii_dev);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ruephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
|
|
{
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
int reg;
|
|
|
|
/*
|
|
* We can't isolate the RealTek RTL8150 PHY,
|
|
* so it has to be the only one!
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
panic("ruephy_service: can't isolate RealTek RTL8150 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;
|
|
|
|
/*
|
|
* Check to see if we have link. If we do, we don't
|
|
* need to restart the autonegotiation process. Read
|
|
* the MSR twice in case it's latched.
|
|
*/
|
|
reg = PHY_READ(sc, RUEPHY_MII_MSR) |
|
|
PHY_READ(sc, RUEPHY_MII_MSR);
|
|
if (reg & RUEPHY_MSR_LINK)
|
|
break;
|
|
|
|
/*
|
|
* Only retry autonegotiation every 5 seconds.
|
|
*/
|
|
if (++sc->mii_ticks <= 5)
|
|
break;
|
|
|
|
sc->mii_ticks = 0;
|
|
ruephy_reset(sc);
|
|
if (mii_phy_auto(sc) == EJUSTRETURN)
|
|
return (0);
|
|
break;
|
|
}
|
|
|
|
/* Update the media status. */
|
|
ruephy_status(sc);
|
|
|
|
/* Callback if something changed. */
|
|
mii_phy_update(sc, cmd);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
ruephy_reset(struct mii_softc *sc)
|
|
{
|
|
|
|
mii_phy_reset(sc);
|
|
|
|
/*
|
|
* XXX RealTek RTL8150 PHY doesn't set the BMCR properly after
|
|
* XXX reset, which breaks autonegotiation.
|
|
*/
|
|
PHY_WRITE(sc, MII_BMCR, (BMCR_S100 | BMCR_AUTOEN | BMCR_FDX));
|
|
}
|
|
|
|
static void
|
|
ruephy_status(struct mii_softc *phy)
|
|
{
|
|
struct mii_data *mii = phy->mii_pdata;
|
|
int bmsr, bmcr, msr;
|
|
|
|
mii->mii_media_status = IFM_AVALID;
|
|
mii->mii_media_active = IFM_ETHER;
|
|
|
|
msr = PHY_READ(phy, RUEPHY_MII_MSR) | PHY_READ(phy, RUEPHY_MII_MSR);
|
|
if (msr & RUEPHY_MSR_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;
|
|
}
|
|
|
|
bmsr = PHY_READ(phy, MII_BMSR) | PHY_READ(phy, MII_BMSR);
|
|
|
|
if (bmcr & BMCR_AUTOEN) {
|
|
if ((bmsr & BMSR_ACOMP) == 0) {
|
|
/* Erg, still trying, I guess... */
|
|
mii->mii_media_active |= IFM_NONE;
|
|
return;
|
|
}
|
|
|
|
if (msr & RUEPHY_MSR_SPEED100)
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
else
|
|
mii->mii_media_active |= IFM_10_T;
|
|
|
|
if (msr & RUEPHY_MSR_DUPLEX)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
} else
|
|
mii->mii_media_active = mii_media_from_bmcr(bmcr);
|
|
}
|