freebsd-dev/sys/dev/mii/inphy.c
David E. O'Brien aad970f1fe Use __FBSDID().
Also some minor style cleanups.
2003-08-24 17:55:58 +00:00

237 lines
5.9 KiB
C

/*-
* Copyright (c) 2001 Jonathan Lemon
* 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. 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 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 Intel 82553 and 82555 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 "miidevs.h"
#include <dev/mii/inphyreg.h>
#include "miibus_if.h"
static int inphy_probe(device_t dev);
static int inphy_attach(device_t dev);
static device_method_t inphy_methods[] = {
/* device interface */
DEVMETHOD(device_probe, inphy_probe),
DEVMETHOD(device_attach, inphy_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
{ 0, 0 }
};
static devclass_t inphy_devclass;
static driver_t inphy_driver = {
"inphy",
inphy_methods,
sizeof(struct mii_softc)
};
DRIVER_MODULE(inphy, miibus, inphy_driver, inphy_devclass, 0, 0);
static int inphy_service(struct mii_softc *, struct mii_data *, int);
static void inphy_status(struct mii_softc *);
static int
inphy_probe(device_t dev)
{
struct mii_attach_args *ma;
ma = device_get_ivars(dev);
/* Intel 82553 A/B steppings */
if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxINTEL &&
MII_MODEL(ma->mii_id2) == MII_MODEL_xxINTEL_I82553AB) {
device_set_desc(dev, MII_STR_xxINTEL_I82553AB);
return (0);
}
if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_INTEL) {
switch (MII_MODEL(ma->mii_id2)) {
case MII_MODEL_INTEL_I82555:
device_set_desc(dev, MII_STR_INTEL_I82555);
return (0);
case MII_MODEL_INTEL_I82553C:
device_set_desc(dev, MII_STR_INTEL_I82553C);
return (0);
case MII_MODEL_INTEL_I82562EM:
device_set_desc(dev, MII_STR_INTEL_I82562EM);
return (0);
case MII_MODEL_INTEL_I82562ET:
device_set_desc(dev, MII_STR_INTEL_I82562ET);
return (0);
}
}
return (ENXIO);
}
static int
inphy_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);
LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
sc->mii_inst = mii->mii_instance;
sc->mii_phy = ma->mii_phyno;
sc->mii_service = inphy_service;
sc->mii_pdata = mii;
mii->mii_instance++;
#if 0
sc->mii_flags |= MIIF_NOISOLATE;
#endif
ifmedia_add(&mii->mii_media,
IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
BMCR_LOOP|BMCR_S100, NULL);
mii_phy_reset(sc);
sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
device_printf(dev, " ");
mii_phy_add_media(sc);
printf("\n");
MIIBUS_MEDIAINIT(sc->mii_dev);
return (0);
}
static int
inphy_service(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 (IFM_INST(ife->ifm_media) != sc->mii_inst)
return (0);
break;
case MII_MEDIACHG:
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;
mii_phy_setmedia(sc);
break;
case MII_TICK:
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
return (0);
if (mii_phy_tick(sc) == EJUSTRETURN)
return (0);
break;
}
/* Update the media status. */
inphy_status(sc);
/* Callback if something changed. */
mii_phy_update(sc, cmd);
return (0);
}
static void
inphy_status(struct mii_softc *sc)
{
struct mii_data *mii = sc->mii_pdata;
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
int bmsr, bmcr, scr;
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
if (bmsr & BMSR_LINK)
mii->mii_media_status |= IFM_ACTIVE;
bmcr = PHY_READ(sc, 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) {
if ((bmsr & BMSR_ACOMP) == 0) {
mii->mii_media_active |= IFM_NONE;
return;
}
scr = PHY_READ(sc, MII_INPHY_SCR);
if (scr & SCR_S100)
mii->mii_media_active |= IFM_100_TX;
else
mii->mii_media_active |= IFM_10_T;
if (scr & SCR_FDX)
mii->mii_media_active |= IFM_FDX;
} else
mii->mii_media_active = ife->ifm_media;
}