283 lines
7.1 KiB
C
283 lines
7.1 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.
|
|
*/
|
|
|
|
/*
|
|
* 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/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#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_pio.h>
|
|
#include <machine/bus_memio.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <pci/if_dcreg.h>
|
|
|
|
#include "miibus_if.h"
|
|
|
|
#define DC_SETBIT(sc, reg, x) \
|
|
CSR_WRITE_4(sc, reg, \
|
|
CSR_READ_4(sc, reg) | x)
|
|
|
|
#define DC_CLRBIT(sc, reg, x) \
|
|
CSR_WRITE_4(sc, reg, \
|
|
CSR_READ_4(sc, reg) & ~x)
|
|
|
|
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 int
|
|
pnphy_probe(dev)
|
|
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 (0);
|
|
}
|
|
|
|
static int
|
|
pnphy_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);
|
|
LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
|
|
|
|
sc->mii_inst = mii->mii_instance;
|
|
sc->mii_phy = ma->mii_phyno;
|
|
sc->mii_service = pnphy_service;
|
|
sc->mii_pdata = mii;
|
|
|
|
sc->mii_flags |= MIIF_NOISOLATE;
|
|
mii->mii_instance++;
|
|
|
|
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
|
|
|
|
sc->mii_capabilities =
|
|
BMSR_100TXFDX|BMSR_100TXHDX|BMSR_10TFDX|BMSR_10THDX;
|
|
sc->mii_capabilities &= ma->mii_capmask;
|
|
device_printf(dev, " ");
|
|
mii_add_media(sc);
|
|
printf("\n");
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
|
|
BMCR_ISO);
|
|
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
|
|
BMCR_LOOP|BMCR_S100);
|
|
|
|
#undef ADD
|
|
|
|
MIIBUS_MEDIAINIT(sc->mii_dev);
|
|
return(0);
|
|
}
|
|
|
|
static int
|
|
pnphy_service(sc, mii, cmd)
|
|
struct mii_softc *sc;
|
|
struct mii_data *mii;
|
|
int cmd;
|
|
{
|
|
struct dc_softc *dc_sc;
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
|
|
dc_sc = mii->mii_ifp->if_softc;
|
|
|
|
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)
|
|
return (0);
|
|
|
|
/*
|
|
* If the interface is not up, don't do anything.
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
break;
|
|
|
|
sc->mii_flags = 0;
|
|
|
|
switch (IFM_SUBTYPE(ife->ifm_media)) {
|
|
case IFM_AUTO:
|
|
/* NWAY is busted on this chip */
|
|
case IFM_100_T4:
|
|
/*
|
|
* XXX Not supported as a manual setting right now.
|
|
*/
|
|
return (EINVAL);
|
|
case IFM_100_TX:
|
|
mii->mii_media_active = IFM_ETHER|IFM_100_TX;
|
|
if ((ife->ifm_media & IFM_GMASK) == IFM_FDX)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
MIIBUS_STATCHG(sc->mii_dev);
|
|
return(0);
|
|
break;
|
|
case IFM_10_T:
|
|
mii->mii_media_active = IFM_ETHER|IFM_10_T;
|
|
if ((ife->ifm_media & IFM_GMASK) == IFM_FDX)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
MIIBUS_STATCHG(sc->mii_dev);
|
|
return(0);
|
|
break;
|
|
default:
|
|
return(EINVAL);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case MII_TICK:
|
|
/*
|
|
* If we're not currently selected, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
return (0);
|
|
|
|
/*
|
|
* Is the interface even up?
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
return (0);
|
|
|
|
break;
|
|
}
|
|
|
|
/* Update the media status. */
|
|
pnphy_status(sc);
|
|
|
|
/* Callback if something changed. */
|
|
mii_phy_update(sc, cmd);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
pnphy_status(sc)
|
|
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;
|
|
|
|
if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_SPEEDSEL)
|
|
mii->mii_media_active |= IFM_10_T;
|
|
else
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_FULLDUPLEX)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
|
|
return;
|
|
}
|