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inphy.c revision 1.35
      1  1.35   thorpej /*	$NetBSD: inphy.c,v 1.35 2003/04/29 01:49:33 thorpej Exp $	*/
      2   1.1   thorpej 
      3   1.1   thorpej /*-
      4  1.20   thorpej  * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
      5   1.1   thorpej  * All rights reserved.
      6   1.1   thorpej  *
      7   1.1   thorpej  * This code is derived from software contributed to The NetBSD Foundation
      8   1.1   thorpej  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9   1.1   thorpej  * NASA Ames Research Center.
     10   1.1   thorpej  *
     11   1.1   thorpej  * Redistribution and use in source and binary forms, with or without
     12   1.1   thorpej  * modification, are permitted provided that the following conditions
     13   1.1   thorpej  * are met:
     14   1.1   thorpej  * 1. Redistributions of source code must retain the above copyright
     15   1.1   thorpej  *    notice, this list of conditions and the following disclaimer.
     16   1.1   thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     17   1.1   thorpej  *    notice, this list of conditions and the following disclaimer in the
     18   1.1   thorpej  *    documentation and/or other materials provided with the distribution.
     19   1.1   thorpej  * 3. All advertising materials mentioning features or use of this software
     20   1.1   thorpej  *    must display the following acknowledgement:
     21   1.1   thorpej  *	This product includes software developed by the NetBSD
     22   1.1   thorpej  *	Foundation, Inc. and its contributors.
     23   1.1   thorpej  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24   1.1   thorpej  *    contributors may be used to endorse or promote products derived
     25   1.1   thorpej  *    from this software without specific prior written permission.
     26   1.1   thorpej  *
     27   1.1   thorpej  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28   1.1   thorpej  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29   1.1   thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30   1.1   thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31   1.1   thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32   1.1   thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33   1.1   thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34   1.1   thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35   1.1   thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36   1.1   thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37   1.1   thorpej  * POSSIBILITY OF SUCH DAMAGE.
     38   1.1   thorpej  */
     39   1.1   thorpej 
     40   1.1   thorpej /*
     41   1.1   thorpej  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
     42   1.1   thorpej  *
     43   1.1   thorpej  * Redistribution and use in source and binary forms, with or without
     44   1.1   thorpej  * modification, are permitted provided that the following conditions
     45   1.1   thorpej  * are met:
     46   1.1   thorpej  * 1. Redistributions of source code must retain the above copyright
     47   1.1   thorpej  *    notice, this list of conditions and the following disclaimer.
     48   1.1   thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     49   1.1   thorpej  *    notice, this list of conditions and the following disclaimer in the
     50   1.1   thorpej  *    documentation and/or other materials provided with the distribution.
     51   1.1   thorpej  * 3. All advertising materials mentioning features or use of this software
     52   1.1   thorpej  *    must display the following acknowledgement:
     53   1.1   thorpej  *	This product includes software developed by Manuel Bouyer.
     54   1.1   thorpej  * 4. The name of the author may not be used to endorse or promote products
     55   1.1   thorpej  *    derived from this software without specific prior written permission.
     56   1.1   thorpej  *
     57   1.1   thorpej  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     58   1.1   thorpej  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     59   1.1   thorpej  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     60   1.1   thorpej  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     61   1.1   thorpej  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     62   1.1   thorpej  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     63   1.1   thorpej  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     64   1.1   thorpej  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     65   1.1   thorpej  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     66   1.1   thorpej  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     67   1.1   thorpej  */
     68   1.1   thorpej 
     69   1.1   thorpej /*
     70   1.1   thorpej  * driver for Intel's i82555 ethernet 10/100 PHY
     71   1.1   thorpej  * Data Sheet available from www.intel.com
     72   1.1   thorpej  */
     73  1.26     lukem 
     74  1.26     lukem #include <sys/cdefs.h>
     75  1.35   thorpej __KERNEL_RCSID(0, "$NetBSD: inphy.c,v 1.35 2003/04/29 01:49:33 thorpej Exp $");
     76   1.1   thorpej 
     77   1.1   thorpej #include <sys/param.h>
     78   1.1   thorpej #include <sys/systm.h>
     79   1.1   thorpej #include <sys/kernel.h>
     80   1.1   thorpej #include <sys/device.h>
     81   1.1   thorpej #include <sys/socket.h>
     82  1.11   thorpej #include <sys/errno.h>
     83   1.1   thorpej 
     84   1.1   thorpej #include <net/if.h>
     85   1.1   thorpej #include <net/if_media.h>
     86   1.1   thorpej 
     87   1.1   thorpej #include <dev/mii/mii.h>
     88   1.1   thorpej #include <dev/mii/miivar.h>
     89   1.1   thorpej #include <dev/mii/miidevs.h>
     90   1.1   thorpej 
     91   1.1   thorpej #include <dev/mii/inphyreg.h>
     92   1.1   thorpej 
     93  1.25   thorpej int	inphymatch(struct device *, struct cfdata *, void *);
     94  1.25   thorpej void	inphyattach(struct device *, struct device *, void *);
     95   1.1   thorpej 
     96  1.30   thorpej CFATTACH_DECL(inphy, sizeof(struct mii_softc),
     97  1.31   thorpej     inphymatch, inphyattach, mii_phy_detach, mii_phy_activate);
     98   1.1   thorpej 
     99  1.25   thorpej int	inphy_service(struct mii_softc *, struct mii_data *, int);
    100  1.25   thorpej void	inphy_status(struct mii_softc *);
    101   1.1   thorpej 
    102  1.20   thorpej const struct mii_phy_funcs inphy_funcs = {
    103  1.20   thorpej 	inphy_service, inphy_status, mii_phy_reset,
    104  1.20   thorpej };
    105  1.20   thorpej 
    106  1.23   thorpej const struct mii_phydesc inphys[] = {
    107  1.23   thorpej 	{ MII_OUI_yyINTEL,		MII_MODEL_yyINTEL_I82555,
    108  1.23   thorpej 	  MII_STR_yyINTEL_I82555 },
    109  1.23   thorpej 
    110  1.32      matt 	{ MII_OUI_yyINTEL,		MII_MODEL_yyINTEL_I82562EH,
    111  1.32      matt 	  MII_STR_yyINTEL_I82562EH },
    112  1.33      matt 
    113  1.32      matt 	{ MII_OUI_yyINTEL,		MII_MODEL_yyINTEL_I82562EM,
    114  1.32      matt 	  MII_STR_yyINTEL_I82562EM },
    115  1.33      matt 
    116  1.32      matt 	{ MII_OUI_yyINTEL,		MII_MODEL_yyINTEL_I82562ET,
    117  1.32      matt 	  MII_STR_yyINTEL_I82562ET },
    118  1.33      matt 
    119  1.23   thorpej 	{ 0,				0,
    120  1.23   thorpej 	  NULL },
    121  1.23   thorpej };
    122  1.23   thorpej 
    123   1.1   thorpej int
    124  1.25   thorpej inphymatch(struct device *parent, struct cfdata *match, void *aux)
    125   1.1   thorpej {
    126   1.1   thorpej 	struct mii_attach_args *ma = aux;
    127   1.1   thorpej 
    128  1.23   thorpej 	if (mii_phy_match(ma, inphys) != NULL)
    129   1.8   thorpej 		return (10);
    130   1.1   thorpej 
    131   1.1   thorpej 	return (0);
    132   1.1   thorpej }
    133   1.1   thorpej 
    134   1.1   thorpej void
    135  1.25   thorpej inphyattach(struct device *parent, struct device *self, void *aux)
    136   1.1   thorpej {
    137   1.9   thorpej 	struct mii_softc *sc = (struct mii_softc *)self;
    138   1.1   thorpej 	struct mii_attach_args *ma = aux;
    139   1.1   thorpej 	struct mii_data *mii = ma->mii_data;
    140  1.23   thorpej 	const struct mii_phydesc *mpd;
    141   1.1   thorpej 
    142  1.23   thorpej 	mpd = mii_phy_match(ma, inphys);
    143  1.35   thorpej 	aprint_naive(": Media interface\n");
    144  1.35   thorpej 	aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
    145   1.1   thorpej 
    146   1.9   thorpej 	sc->mii_inst = mii->mii_instance;
    147   1.9   thorpej 	sc->mii_phy = ma->mii_phyno;
    148  1.20   thorpej 	sc->mii_funcs = &inphy_funcs;
    149   1.9   thorpej 	sc->mii_pdata = mii;
    150  1.27   thorpej 	sc->mii_flags = ma->mii_flags;
    151  1.22   thorpej 	sc->mii_anegticks = 5;
    152   1.7   thorpej 
    153  1.20   thorpej 	PHY_RESET(sc);
    154   1.1   thorpej 
    155   1.9   thorpej 	sc->mii_capabilities =
    156   1.9   thorpej 	    PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
    157  1.35   thorpej 	aprint_normal("%s: ", sc->mii_dev.dv_xname);
    158   1.9   thorpej 	if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
    159  1.35   thorpej 		aprint_error("no media present");
    160   1.1   thorpej 	else
    161  1.15   thorpej 		mii_phy_add_media(sc);
    162  1.35   thorpej 	aprint_normal("\n");
    163   1.1   thorpej }
    164   1.1   thorpej 
    165   1.1   thorpej int
    166  1.25   thorpej inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
    167   1.1   thorpej {
    168   1.4   thorpej 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
    169   1.1   thorpej 	int reg;
    170  1.14   thorpej 
    171  1.14   thorpej 	if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
    172  1.14   thorpej 		return (ENXIO);
    173   1.1   thorpej 
    174   1.1   thorpej 	switch (cmd) {
    175   1.1   thorpej 	case MII_POLLSTAT:
    176   1.1   thorpej 		/*
    177   1.1   thorpej 		 * If we're not polling our PHY instance, just return.
    178   1.1   thorpej 		 */
    179   1.9   thorpej 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
    180   1.1   thorpej 			return (0);
    181   1.1   thorpej 		break;
    182   1.1   thorpej 
    183   1.1   thorpej 	case MII_MEDIACHG:
    184   1.1   thorpej 		/*
    185   1.1   thorpej 		 * If the media indicates a different PHY instance,
    186   1.1   thorpej 		 * isolate ourselves.
    187   1.1   thorpej 		 */
    188   1.9   thorpej 		if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
    189   1.9   thorpej 			reg = PHY_READ(sc, MII_BMCR);
    190   1.9   thorpej 			PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
    191   1.1   thorpej 			return (0);
    192   1.1   thorpej 		}
    193   1.1   thorpej 
    194   1.1   thorpej 		/*
    195   1.1   thorpej 		 * If the interface is not up, don't do anything.
    196   1.1   thorpej 		 */
    197   1.1   thorpej 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
    198   1.1   thorpej 			break;
    199   1.1   thorpej 
    200  1.18   thorpej 		mii_phy_setmedia(sc);
    201   1.1   thorpej 		break;
    202   1.1   thorpej 
    203   1.1   thorpej 	case MII_TICK:
    204   1.1   thorpej 		/*
    205   1.1   thorpej 		 * If we're not currently selected, just return.
    206   1.1   thorpej 		 */
    207   1.9   thorpej 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
    208   1.1   thorpej 			return (0);
    209   1.1   thorpej 
    210  1.19   thorpej 		if (mii_phy_tick(sc) == EJUSTRETURN)
    211  1.11   thorpej 			return (0);
    212   1.1   thorpej 		break;
    213  1.13   thorpej 
    214  1.13   thorpej 	case MII_DOWN:
    215  1.13   thorpej 		mii_phy_down(sc);
    216  1.13   thorpej 		return (0);
    217   1.1   thorpej 	}
    218   1.1   thorpej 
    219   1.1   thorpej 	/* Update the media status. */
    220  1.17   thorpej 	mii_phy_status(sc);
    221   1.1   thorpej 
    222   1.1   thorpej 	/* Callback if something changed. */
    223  1.19   thorpej 	mii_phy_update(sc, cmd);
    224   1.1   thorpej 	return (0);
    225   1.1   thorpej }
    226   1.1   thorpej 
    227   1.1   thorpej void
    228  1.25   thorpej inphy_status(struct mii_softc *sc)
    229   1.1   thorpej {
    230   1.9   thorpej 	struct mii_data *mii = sc->mii_pdata;
    231  1.12   thorpej 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
    232   1.1   thorpej 	int bmsr, bmcr, scr;
    233   1.1   thorpej 
    234   1.1   thorpej 	mii->mii_media_status = IFM_AVALID;
    235   1.1   thorpej 	mii->mii_media_active = IFM_ETHER;
    236   1.1   thorpej 
    237   1.9   thorpej 	bmsr = PHY_READ(sc, MII_BMSR) |
    238   1.9   thorpej 	    PHY_READ(sc, MII_BMSR);
    239   1.1   thorpej 	if (bmsr & BMSR_LINK)
    240   1.1   thorpej 		mii->mii_media_status |= IFM_ACTIVE;
    241   1.1   thorpej 
    242   1.9   thorpej 	bmcr = PHY_READ(sc, MII_BMCR);
    243   1.1   thorpej 	if (bmcr & BMCR_ISO) {
    244   1.1   thorpej 		mii->mii_media_active |= IFM_NONE;
    245   1.1   thorpej 		mii->mii_media_status = 0;
    246   1.1   thorpej 		return;
    247   1.1   thorpej 	}
    248   1.1   thorpej 
    249   1.1   thorpej 	if (bmcr & BMCR_LOOP)
    250   1.1   thorpej 		mii->mii_media_active |= IFM_LOOP;
    251   1.1   thorpej 
    252   1.1   thorpej 	if (bmcr & BMCR_AUTOEN) {
    253   1.3   thorpej 		if ((bmsr & BMSR_ACOMP) == 0) {
    254   1.3   thorpej 			/* Erg, still trying, I guess... */
    255   1.3   thorpej 			mii->mii_media_active |= IFM_NONE;
    256   1.3   thorpej 			return;
    257   1.3   thorpej 		}
    258   1.9   thorpej 		scr = PHY_READ(sc, MII_INPHY_SCR);
    259  1.34  drochner 		if ((bmsr & BMSR_100T4) && (scr & SCR_T4))
    260   1.1   thorpej 			mii->mii_media_active |= IFM_100_T4;
    261   1.1   thorpej 		else if (scr & SCR_S100)
    262   1.1   thorpej 			mii->mii_media_active |= IFM_100_TX;
    263   1.1   thorpej 		else
    264   1.1   thorpej 			mii->mii_media_active |= IFM_10_T;
    265   1.1   thorpej 		if (scr & SCR_FDX)
    266   1.1   thorpej 			mii->mii_media_active |= IFM_FDX;
    267  1.10   thorpej 	} else
    268  1.12   thorpej 		mii->mii_media_active = ife->ifm_media;
    269   1.1   thorpej }
    270