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/*
* 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("$FreeBSD$");
/*
* Pseudo-driver for media selection on the Lite-On PNIC 82c168
* chip. The NWAY support on this chip is horribly broken, so we
* only support manual mode selection. This is lame, but getting
* NWAY to work right is amazingly difficult.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <sys/lock.h>
#include <sys/module.h>
#include <sys/mutex.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 <machine/resource.h>
#include <sys/bus.h>
#include <dev/dc/if_dcreg.h>
#include "miibus_if.h"
static int pnphy_probe(device_t);
static int pnphy_attach(device_t);
static device_method_t pnphy_methods[] = {
/* device interface */
DEVMETHOD(device_probe, pnphy_probe),
DEVMETHOD(device_attach, pnphy_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
{ 0, 0 }
};
static devclass_t pnphy_devclass;
static driver_t pnphy_driver = {
"pnphy",
pnphy_methods,
sizeof(struct mii_softc)
};
DRIVER_MODULE(pnphy, miibus, pnphy_driver, pnphy_devclass, 0, 0);
static int pnphy_service(struct mii_softc *, struct mii_data *, int);
static void pnphy_status(struct mii_softc *);
static void pnphy_reset(struct mii_softc *);
static const struct mii_phy_funcs pnphy_funcs = {
pnphy_service,
pnphy_status,
pnphy_reset
};
static int
pnphy_probe(device_t dev)
{
struct mii_attach_args *ma;
ma = device_get_ivars(dev);
/*
* The dc driver will report the 82c168 vendor and device
* ID to let us know that it wants us to attach.
*/
if (ma->mii_id1 != DC_VENDORID_LO ||
ma->mii_id2 != DC_DEVICEID_82C168)
return (ENXIO);
device_set_desc(dev, "PNIC 82c168 media interface");
return (BUS_PROBE_DEFAULT);
}
static int
pnphy_attach(device_t dev)
{
struct mii_softc *sc;
sc = device_get_softc(dev);
mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
&pnphy_funcs, 0);
sc->mii_capabilities =
BMSR_100TXFDX | BMSR_100TXHDX | BMSR_10TFDX | BMSR_10THDX;
sc->mii_capabilities &= sc->mii_capmask;
device_printf(dev, " ");
mii_phy_add_media(sc);
printf("\n");
MIIBUS_MEDIAINIT(sc->mii_dev);
return (0);
}
static int
pnphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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;
/*
* Note that auto-negotiation is broken on this chip.
*/
switch (IFM_SUBTYPE(ife->ifm_media)) {
case IFM_100_TX:
mii->mii_media_active = IFM_ETHER | IFM_100_TX;
if ((ife->ifm_media & IFM_FDX) != 0)
mii->mii_media_active |= IFM_FDX;
MIIBUS_STATCHG(sc->mii_dev);
return (0);
case IFM_10_T:
mii->mii_media_active = IFM_ETHER | IFM_10_T;
if ((ife->ifm_media & IFM_FDX) != 0)
mii->mii_media_active |= IFM_FDX;
MIIBUS_STATCHG(sc->mii_dev);
return (0);
default:
return (EINVAL);
}
break;
case MII_TICK:
/*
* Is the interface even up?
*/
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
return (0);
break;
}
/* Update the media status. */
PHY_STATUS(sc);
/* Callback if something changed. */
mii_phy_update(sc, cmd);
return (0);
}
static void
pnphy_status(struct mii_softc *sc)
{
struct mii_data *mii = sc->mii_pdata;
int reg;
struct dc_softc *dc_sc;
dc_sc = mii->mii_ifp->if_softc;
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
reg = CSR_READ_4(dc_sc, DC_ISR);
if (!(reg & DC_ISR_LINKFAIL))
mii->mii_media_status |= IFM_ACTIVE;
reg = CSR_READ_4(dc_sc, DC_NETCFG);
if (reg & DC_NETCFG_SPEEDSEL)
mii->mii_media_active |= IFM_10_T;
else
mii->mii_media_active |= IFM_100_TX;
if (reg & DC_NETCFG_FULLDUPLEX)
mii->mii_media_active |= IFM_FDX;
else
mii->mii_media_active |= IFM_HDX;
}
static void
pnphy_reset(struct mii_softc *sc __unused)
{
}
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