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freebsd/sys/dev/mii/rlphy.c
Alfred Perlstein e51a25f850 Remove __P.
2002-03-20 02:08:01 +00:00

259 lines
6.3 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.
*
* $FreeBSD$
*/
/*
* driver for RealTek 8139 internal PHYs
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.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 "miibus_if.h"
#if !defined(lint)
static const char rcsid[] =
"$FreeBSD$";
#endif
static int rlphy_probe (device_t);
static int rlphy_attach (device_t);
static int rlphy_detach (device_t);
static device_method_t rlphy_methods[] = {
/* device interface */
DEVMETHOD(device_probe, rlphy_probe),
DEVMETHOD(device_attach, rlphy_attach),
DEVMETHOD(device_detach, rlphy_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 int rlphy_probe(dev)
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 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'.
*/
if (strcmp(device_get_name(parent), "rl") != 0)
return (ENXIO);
device_set_desc(dev, "RealTek internal media interface");
return (0);
}
static int rlphy_attach(dev)
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, " ");
if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
printf("no media present");
else
mii_add_media(mii, sc->mii_capabilities,
sc->mii_inst);
printf("\n");
#undef ADD
MIIBUS_MEDIAINIT(sc->mii_dev);
return(0);
}
static int rlphy_detach(dev)
device_t dev;
{
struct mii_softc *sc;
struct mii_data *mii;
sc = device_get_softc(dev);
mii = device_get_softc(device_get_softc(dev));
mii_phy_auto_stop(sc);
sc->mii_dev = NULL;
LIST_REMOVE(sc, mii_list);
return(0);
}
static int
rlphy_service(sc, mii, cmd)
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, 0);
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. */
ukphy_status(sc);
/* Callback if something changed. */
mii_phy_update(sc, cmd);
return (0);
}