Code to handle generic ten-bit interfaces (1000BASE-{LX,SX} fiber
interfaces).
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thorpej
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0e863b15a6
commit
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@ -1,4 +1,4 @@
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# $NetBSD: files.mii,v 1.23 2001/07/12 17:30:45 thorpej Exp $
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# $NetBSD: files.mii,v 1.24 2001/07/12 18:49:38 thorpej Exp $
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file dev/mii/mii.c mii
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@ -30,6 +30,10 @@ device nsphyter: mii_phy
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attach nsphyter at mii
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file dev/mii/nsphyter.c nsphyter
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device gentbi: mii_phy
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attach gentbi at mii
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file dev/mii/gentbi.c gentbi
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device gphyter: mii_phy
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attach gphyter at mii
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file dev/mii/gphyter.c gphyter
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292
sys/dev/mii/gentbi.c
Normal file
292
sys/dev/mii/gentbi.c
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/* $NetBSD: gentbi.c,v 1.1 2001/07/12 18:49:38 thorpej Exp $ */
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/*-
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* Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1997 Manuel Bouyer. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Manuel Bouyer.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Driver for generic ten-bit (1000BASE-SX) interfaces, built in to
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* many Gigabit Ethernet chips.
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*
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* All we have to do here is correctly report speed and duplex.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/socket.h>
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#include <sys/errno.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <dev/mii/miidevs.h>
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int gentbimatch __P((struct device *, struct cfdata *, void *));
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void gentbiattach __P((struct device *, struct device *, void *));
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struct cfattach gentbi_ca = {
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sizeof(struct mii_softc), gentbimatch, gentbiattach,
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mii_phy_detach, mii_phy_activate
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};
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int gentbi_service __P((struct mii_softc *, struct mii_data *, int));
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void gentbi_status __P((struct mii_softc *));
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const struct mii_phy_funcs gentbi_funcs = {
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gentbi_service, gentbi_status, mii_phy_reset,
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};
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int
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gentbimatch(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct mii_attach_args *ma = aux;
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struct mii_data *mii = ma->mii_data;
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int bmsr, extsr;
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/*
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* We match as a generic TBI if:
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*
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* - There is no media in the BMSR.
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* - EXTSR has only 1000X.
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*/
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bmsr = (*mii->mii_readreg)(parent, ma->mii_phyno, MII_BMSR);
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if ((bmsr & BMSR_EXTSTAT) == 0 || (bmsr & BMSR_MEDIAMASK) != 0)
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return (0);
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extsr = (*mii->mii_readreg)(parent, ma->mii_phyno, MII_EXTSR);
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if (extsr & (EXTSR_1000TFDX|EXTSR_1000THDX))
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return (0);
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if (extsr & (EXTSR_1000XFDX|EXTSR_1000XHDX)) {
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/*
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* We think this is a generic TBI. Return a match
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* priority higher than ukphy, but lower than what
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* specific drivers will return.
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*/
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return (2);
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}
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return (0);
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}
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void
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gentbiattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct mii_softc *sc = (struct mii_softc *)self;
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struct mii_attach_args *ma = aux;
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struct mii_data *mii = ma->mii_data;
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printf(": Generic ten-bit interface, rev. %d\n",
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MII_REV(ma->mii_id2));
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sc->mii_inst = mii->mii_instance;
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sc->mii_phy = ma->mii_phyno;
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sc->mii_funcs = &gentbi_funcs;
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sc->mii_pdata = mii;
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sc->mii_flags = mii->mii_flags;
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sc->mii_anegticks = 5;
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PHY_RESET(sc);
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/*
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* Mask out all media in the BMSR. We only are really interested
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* in "auto".
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*/
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sc->mii_capabilities =
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PHY_READ(sc, MII_BMSR) & ma->mii_capmask & ~BMSR_MEDIAMASK;
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if (sc->mii_capabilities & BMSR_EXTSTAT)
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sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
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printf("%s: ", sc->mii_dev.dv_xname);
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if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
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(sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
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printf("no media present");
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else
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mii_phy_add_media(sc);
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printf("\n");
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}
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int
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gentbi_service(sc, mii, cmd)
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struct mii_softc *sc;
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struct mii_data *mii;
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int cmd;
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{
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int reg;
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switch (cmd) {
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case MII_POLLSTAT:
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/*
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* If we're not polling our PHY instance, just return.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst)
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return (0);
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break;
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case MII_MEDIACHG:
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/*
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* If the media indicates a different PHY instance,
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* isolate ourselves.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
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reg = PHY_READ(sc, MII_BMCR);
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PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
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return (0);
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}
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/*
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* If the interface is not up, don't do anything.
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*/
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if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
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break;
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mii_phy_setmedia(sc);
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break;
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case MII_TICK:
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/*
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* If we're not currently selected, just return.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst)
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return (0);
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if (mii_phy_tick(sc) == EJUSTRETURN)
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return (0);
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break;
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case MII_DOWN:
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mii_phy_down(sc);
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return (0);
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}
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/* Update the media status. */
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mii_phy_status(sc);
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/* Callback if something changed. */
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mii_phy_update(sc, cmd);
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return (0);
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}
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void
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gentbi_status(sc)
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struct mii_softc *sc;
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{
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struct mii_data *mii = sc->mii_pdata;
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int bmsr, bmcr, anlpar;
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mii->mii_media_status = IFM_AVALID;
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mii->mii_media_active = IFM_ETHER;
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bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
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if (bmsr & BMSR_LINK)
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mii->mii_media_status |= IFM_ACTIVE;
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bmcr = PHY_READ(sc, MII_BMCR);
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if (bmcr & BMCR_ISO) {
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mii->mii_media_active |= IFM_NONE;
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mii->mii_media_status = 0;
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return;
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}
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if (bmcr & BMCR_LOOP)
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mii->mii_media_active |= IFM_LOOP;
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if (bmcr & BMCR_AUTOEN) {
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/*
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* The media status bits are only valid of autonegotiation
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* has completed (or it's disabled).
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*/
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if ((bmsr & BMSR_ACOMP) == 0) {
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/* Erg, still trying, I guess... */
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mii->mii_media_active |= IFM_NONE;
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return;
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}
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/*
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* The media is always 1000baseSX.
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* Check the ANLPAR to see if we're
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* doing full-duplex.
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*/
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mii->mii_media_active |= IFM_1000_SX;
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anlpar = PHY_READ(sc, MII_ANAR) & PHY_READ(sc, MII_ANLPAR);
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if (anlpar & ANLPAR_TX_FD)
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mii->mii_media_active |= IFM_FDX;
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} else
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mii->mii_media_active = ife->ifm_media;
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}
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