3d7c219de9
indices when manually adding media. Some of these I've missed while converting drivers to take advantage of said fuctions recently, others where longstanding bugs.
261 lines
6.7 KiB
C
261 lines
6.7 KiB
C
/*-
|
|
* Copyright (c) 1997, 1998, 1999
|
|
* Bill Paul <wpaul@ee.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 AMD AM79c873 PHYs
|
|
* This driver also works for Davicom DM910{1,2} PHYs, which appear
|
|
* to be AM79c873 workalikes.
|
|
*/
|
|
|
|
#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_media.h>
|
|
|
|
#include <dev/mii/mii.h>
|
|
#include <dev/mii/miivar.h>
|
|
#include "miidevs.h"
|
|
|
|
#include <dev/mii/amphyreg.h>
|
|
|
|
#include "miibus_if.h"
|
|
|
|
static int amphy_probe(device_t);
|
|
static int amphy_attach(device_t);
|
|
|
|
static device_method_t amphy_methods[] = {
|
|
/* device interface */
|
|
DEVMETHOD(device_probe, amphy_probe),
|
|
DEVMETHOD(device_attach, amphy_attach),
|
|
DEVMETHOD(device_detach, mii_phy_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static devclass_t amphy_devclass;
|
|
|
|
static driver_t amphy_driver = {
|
|
"amphy",
|
|
amphy_methods,
|
|
sizeof(struct mii_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(amphy, miibus, amphy_driver, amphy_devclass, 0, 0);
|
|
|
|
static int amphy_service(struct mii_softc *, struct mii_data *, int);
|
|
static void amphy_status(struct mii_softc *);
|
|
|
|
static const struct mii_phydesc amphys[] = {
|
|
MII_PHY_DESC(DAVICOM, DM9102),
|
|
MII_PHY_DESC(xxAMD, 79C873),
|
|
MII_PHY_DESC(xxDAVICOM, DM9101),
|
|
MII_PHY_END
|
|
};
|
|
|
|
static int
|
|
amphy_probe(device_t dev)
|
|
{
|
|
|
|
return (mii_phy_dev_probe(dev, amphys, BUS_PROBE_DEFAULT));
|
|
}
|
|
|
|
static int
|
|
amphy_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 = amphy_service;
|
|
sc->mii_pdata = mii;
|
|
|
|
mii->mii_instance++;
|
|
|
|
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
|
|
|
|
#if 0
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
|
|
MII_MEDIA_100_TX);
|
|
#endif
|
|
|
|
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");
|
|
#undef ADD
|
|
MIIBUS_MEDIAINIT(sc->mii_dev);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
amphy_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 we're not polling our PHY instance, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
return (0);
|
|
break;
|
|
|
|
case MII_MEDIACHG:
|
|
/*
|
|
* If the media indicates a different PHY instance,
|
|
* isolate ourselves.
|
|
*/
|
|
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 we're not currently selected, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
return (0);
|
|
if (mii_phy_tick(sc) == EJUSTRETURN)
|
|
return (0);
|
|
break;
|
|
}
|
|
|
|
/* Update the media status. */
|
|
amphy_status(sc);
|
|
|
|
/* Callback if something changed. */
|
|
mii_phy_update(sc, cmd);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
amphy_status(struct mii_softc *sc)
|
|
{
|
|
struct mii_data *mii = sc->mii_pdata;
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
int bmsr, bmcr, par, anlpar;
|
|
|
|
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) {
|
|
/*
|
|
* The PAR status bits are only valid of autonegotiation
|
|
* has completed (or it's disabled).
|
|
*/
|
|
if ((bmsr & BMSR_ACOMP) == 0) {
|
|
/* Erg, still trying, I guess... */
|
|
mii->mii_media_active |= IFM_NONE;
|
|
return;
|
|
}
|
|
|
|
if (PHY_READ(sc, MII_ANER) & ANER_LPAN) {
|
|
anlpar = PHY_READ(sc, MII_ANAR) &
|
|
PHY_READ(sc, 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;
|
|
}
|
|
|
|
/*
|
|
* Link partner is not capable of autonegotiation.
|
|
*/
|
|
par = PHY_READ(sc, MII_AMPHY_DSCSR);
|
|
if (par & DSCSR_100FDX)
|
|
mii->mii_media_active |= IFM_100_TX|IFM_FDX;
|
|
else if (par & DSCSR_100HDX)
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
else if (par & DSCSR_10FDX)
|
|
mii->mii_media_active |= IFM_10_T|IFM_HDX;
|
|
else if (par & DSCSR_10HDX)
|
|
mii->mii_media_active |= IFM_10_T;
|
|
} else
|
|
mii->mii_media_active = ife->ifm_media;
|
|
}
|