NetBSD/sys/dev/mii/ukphy.c

230 lines
6.7 KiB
C

/* $NetBSD: ukphy.c,v 1.38 2009/10/19 18:41:14 bouyer Exp $ */
/*-
* Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center, and by Frank van der Linden.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* Copyright (c) 1997 Manuel Bouyer. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
/*
* driver for generic unknown PHYs
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ukphy.c,v 1.38 2009/10/19 18:41:14 bouyer Exp $");
#include "opt_mii.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <net/if.h>
#include <net/if_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#ifdef MIIVERBOSE
struct mii_knowndev {
int oui;
int model;
const char *descr;
};
#include <dev/mii/miidevs.h>
#include <dev/mii/miidevs_data.h>
#endif
static int ukphymatch(device_t, cfdata_t, void *);
static void ukphyattach(device_t, device_t, void *);
CFATTACH_DECL_NEW(ukphy, sizeof(struct mii_softc),
ukphymatch, ukphyattach, mii_phy_detach, mii_phy_activate);
static int ukphy_service(struct mii_softc *, struct mii_data *, int);
static const struct mii_phy_funcs ukphy_funcs = {
ukphy_service, ukphy_status, mii_phy_reset,
};
static int
ukphymatch(device_t parent, cfdata_t match, void *aux)
{
/*
* We know something is here, so always match at a low priority.
*/
return (1);
}
static void
ukphyattach(device_t parent, device_t self, void *aux)
{
struct mii_softc *sc = device_private(self);
struct mii_attach_args *ma = aux;
struct mii_data *mii = ma->mii_data;
int oui = MII_OUI(ma->mii_id1, ma->mii_id2);
int model = MII_MODEL(ma->mii_id2);
int rev = MII_REV(ma->mii_id2);
#ifdef MIIVERBOSE
int i;
#endif
#ifdef MIIVERBOSE
for (i = 0; mii_knowndevs[i].descr != NULL; i++)
if (mii_knowndevs[i].oui == oui &&
mii_knowndevs[i].model == model)
break;
if (mii_knowndevs[i].descr != NULL)
aprint_normal(": %s (OUI 0x%06x, model 0x%04x), rev. %d\n",
mii_knowndevs[i].descr,
oui, model, rev);
else
#endif
aprint_normal(": OUI 0x%06x, model 0x%04x, rev. %d\n",
oui, model, rev);
sc->mii_dev = self;
sc->mii_inst = mii->mii_instance;
sc->mii_phy = ma->mii_phyno;
sc->mii_funcs = &ukphy_funcs;
sc->mii_pdata = mii;
sc->mii_flags = ma->mii_flags;
sc->mii_anegticks = MII_ANEGTICKS;
/*
* Don't do loopback on unknown PHYs. It might confuse some of them.
*/
sc->mii_flags |= MIIF_NOLOOP;
PHY_RESET(sc);
sc->mii_capabilities =
PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
if (sc->mii_capabilities & BMSR_EXTSTAT)
sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
aprint_normal_dev(self, "");
if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
(sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
aprint_error("no media present");
else
mii_phy_add_media(sc);
aprint_normal("\n");
}
static int
ukphy_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);
/*
* Only used for autonegotiation.
*/
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
return (0);
if (mii_phy_tick(sc) == EJUSTRETURN)
return (0);
break;
case MII_DOWN:
mii_phy_down(sc);
return (0);
}
/* Update the media status. */
mii_phy_status(sc);
/* Callback if something changed. */
mii_phy_update(sc, cmd);
return (0);
}