qsphy.c

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    1 /*      OpenBSD: qsphy.c,v 1.6 2000/08/26 20:04:18 nate Exp */
    2 /*      NetBSD: qsphy.c,v 1.19 2000/02/02 23:34:57 thorpej Exp  */
    3 
    4 /*-
    5  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
    6  * All rights reserved.
    7  *
    8  * This code is derived from software contributed to The NetBSD Foundation
    9  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
   10  * NASA Ames Research Center.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  * 3. All advertising materials mentioning features or use of this software
   21  *    must display the following acknowledgement:
   22  *      This product includes software developed by the NetBSD
   23  *      Foundation, Inc. and its contributors.
   24  * 4. Neither the name of The NetBSD Foundation nor the names of its
   25  *    contributors may be used to endorse or promote products derived
   26  *    from this software without specific prior written permission.
   27  *
   28  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   29  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   38  * POSSIBILITY OF SUCH DAMAGE.
   39  */
   40  
   41 /*-
   42  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
   43  *
   44  * Redistribution and use in source and binary forms, with or without
   45  * modification, are permitted provided that the following conditions
   46  * are met:
   47  * 1. Redistributions of source code must retain the above copyright
   48  *    notice, this list of conditions and the following disclaimer.
   49  * 2. Redistributions in binary form must reproduce the above copyright
   50  *    notice, this list of conditions and the following disclaimer in the
   51  *    documentation and/or other materials provided with the distribution.
   52  * 3. All advertising materials mentioning features or use of this software
   53  *    must display the following acknowledgement:
   54  *      This product includes software developed by Manuel Bouyer.
   55  * 4. The name of the author may not be used to endorse or promote products
   56  *    derived from this software without specific prior written permission.
   57  *
   58  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   59  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   60  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   61  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   62  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   63  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   64  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   65  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   66  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   67  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   68  */
   69 
   70 #include <sys/cdefs.h>
   71 __FBSDID("$FreeBSD$");
   72 
   73 /*
   74  * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY
   75  * datasheet from www.qualitysemi.com
   76  */
   77 
   78 #include <sys/param.h>
   79 #include <sys/systm.h>
   80 #include <sys/kernel.h>
   81 #include <sys/socket.h>
   82 #include <sys/errno.h>
   83 #include <sys/module.h>
   84 #include <sys/bus.h>
   85 
   86 #include <net/if.h>
   87 #include <net/if_media.h>
   88 
   89 #include <dev/mii/mii.h>
   90 #include <dev/mii/miivar.h>
   91 #include "miidevs.h"
   92 
   93 #include <dev/mii/qsphyreg.h>
   94 
   95 #include "miibus_if.h"
   96 
   97 static int qsphy_probe(device_t);
   98 static int qsphy_attach(device_t);
   99 
  100 static device_method_t qsphy_methods[] = {
  101         /* device interface */
  102         DEVMETHOD(device_probe,         qsphy_probe),
  103         DEVMETHOD(device_attach,        qsphy_attach),
  104         DEVMETHOD(device_detach,        mii_phy_detach),
  105         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
  106         { 0, 0 }
  107 };
  108 
  109 static devclass_t qsphy_devclass;
  110 
  111 static driver_t qsphy_driver = {
  112         "qsphy",
  113         qsphy_methods,
  114         sizeof(struct mii_softc)
  115 };
  116 
  117 DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, 0, 0);
  118 
  119 static int      qsphy_service(struct mii_softc *, struct mii_data *, int);
  120 static void     qsphy_reset(struct mii_softc *);
  121 static void     qsphy_status(struct mii_softc *);
  122 
  123 static int
  124 qsphy_probe(dev)
  125         device_t                dev;
  126 {
  127         struct mii_attach_args *ma;
  128 
  129         ma = device_get_ivars(dev);
  130 
  131         if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_QUALSEMI &&
  132             MII_MODEL(ma->mii_id2) == MII_MODEL_QUALSEMI_QS6612) {
  133                 device_set_desc(dev, MII_STR_QUALSEMI_QS6612);
  134         } else 
  135                 return (ENXIO);
  136 
  137         return (0);
  138 }
  139 
  140 static int
  141 qsphy_attach(dev)
  142         device_t                dev;
  143 {
  144         struct mii_softc *sc;
  145         struct mii_attach_args *ma;
  146         struct mii_data *mii;
  147 
  148         sc = device_get_softc(dev);
  149         ma = device_get_ivars(dev);
  150         sc->mii_dev = device_get_parent(dev);
  151         mii = device_get_softc(sc->mii_dev);
  152         LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
  153 
  154         sc->mii_inst = mii->mii_instance;
  155         sc->mii_phy = ma->mii_phyno;
  156         sc->mii_service = qsphy_service;
  157         sc->mii_pdata = mii;
  158         sc->mii_flags |= MIIF_NOISOLATE;
  159 
  160         qsphy_reset(sc);
  161 
  162         mii->mii_instance++;
  163 
  164         sc->mii_capabilities =
  165             PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
  166         device_printf(dev, " ");
  167         mii_add_media(sc);
  168         printf("\n");
  169 
  170         MIIBUS_MEDIAINIT(sc->mii_dev);
  171         return (0);
  172 }
  173 
  174 static int
  175 qsphy_service(sc, mii, cmd)
  176         struct mii_softc *sc;
  177         struct mii_data *mii;
  178         int cmd;
  179 {
  180         struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
  181         int reg;
  182 
  183         /*
  184          * If we're not selected, then do nothing, just isolate, if
  185          * changing media.
  186          */
  187         if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
  188                 if (cmd == MII_MEDIACHG) {
  189                         reg = PHY_READ(sc, MII_BMCR);
  190                         PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
  191                 }
  192 
  193                 return (0);
  194         }
  195 
  196         switch (cmd) {
  197         case MII_POLLSTAT:
  198                 break;
  199 
  200         case MII_MEDIACHG:
  201                 /*
  202                  * If the interface is not up, don't do anything.
  203                  */
  204                 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
  205                         break;
  206 
  207                 switch (IFM_SUBTYPE(ife->ifm_media)) {
  208                 case IFM_AUTO:
  209                         /*
  210                          * If we're already in auto mode, just return.
  211                          */
  212                         if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
  213                                 return (0);
  214 
  215                         (void) mii_phy_auto(sc);
  216                         break;
  217 
  218                 default:
  219                         /*
  220                          * BMCR data is stored in the ifmedia entry.
  221                          */
  222                         PHY_WRITE(sc, MII_ANAR,
  223                             mii_anar(ife->ifm_media));
  224                         PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
  225                 }
  226                 break;
  227 
  228         case MII_TICK:
  229                 /*
  230                  * Is the interface even up?
  231                  */
  232                 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
  233                         return (0);
  234 
  235                 /*
  236                  * Only used for autonegotiation.
  237                  */
  238                 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
  239                         break;
  240 
  241                 /*
  242                  * This PHY's autonegotiation doesn't need to be kicked.
  243                  */
  244                 break;
  245         }
  246 
  247         /* Update the media status. */
  248         qsphy_status(sc);
  249 
  250         /* Callback if something changed. */
  251         mii_phy_update(sc, cmd);
  252         return (0);
  253 }
  254 
  255 static void
  256 qsphy_status(sc)
  257         struct mii_softc *sc;
  258 {
  259         struct mii_data *mii = sc->mii_pdata;
  260         int bmsr, bmcr, pctl;
  261 
  262         mii->mii_media_status = IFM_AVALID;
  263         mii->mii_media_active = IFM_ETHER;
  264 
  265         bmsr = PHY_READ(sc, MII_BMSR) |
  266             PHY_READ(sc, MII_BMSR);
  267         if (bmsr & BMSR_LINK)
  268                 mii->mii_media_status |= IFM_ACTIVE;
  269 
  270         bmcr = PHY_READ(sc, MII_BMCR);
  271         if (bmcr & BMCR_ISO) {
  272                 mii->mii_media_active |= IFM_NONE;
  273                 mii->mii_media_status = 0;
  274                 return;
  275         }
  276 
  277         if (bmcr & BMCR_LOOP)
  278                 mii->mii_media_active |= IFM_LOOP;
  279 
  280         pctl = PHY_READ(sc, MII_QSPHY_PCTL);
  281         switch (pctl & PCTL_OPMASK) {
  282         case PCTL_10_T:
  283                 mii->mii_media_active |= IFM_10_T;
  284                 break;
  285         case PCTL_10_T_FDX:
  286                 mii->mii_media_active |= IFM_10_T|IFM_FDX;
  287                 break;
  288         case PCTL_100_TX:
  289                 mii->mii_media_active |= IFM_100_TX;
  290                 break;
  291         case PCTL_100_TX_FDX:
  292                 mii->mii_media_active |= IFM_100_TX|IFM_FDX;
  293                 break;
  294         case PCTL_100_T4:
  295                 mii->mii_media_active |= IFM_100_T4;
  296                 break;
  297         case PCTL_AN:
  298                 mii->mii_media_active |= IFM_NONE;
  299                 break;
  300         default:
  301                 /* Erg... this shouldn't happen. */
  302                 mii->mii_media_active |= IFM_NONE;
  303                 break;
  304         }
  305 }
  306 
  307 static void
  308 qsphy_reset(sc)
  309         struct mii_softc *sc;
  310 {
  311 
  312         mii_phy_reset(sc);
  313         PHY_WRITE(sc, MII_QSPHY_IMASK, 0);
  314 }
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FreeBSD/Linux Kernel Cross Reference sys/dev/mii/qsphy.c

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sys/dev/mii/qsphy.c
