src/add-ons/kernel/drivers/network/3com/dev/mii/ukphy.c

   1 /*      $NetBSD: ukphy.c,v 1.2 1999/04/23 04:24:32 thorpej Exp $        */
   2
   3 /*-
   4  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
   9  * NASA Ames Research Center, and by Frank van der Linden.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /*-
  34  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  *
  45  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  46  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  47  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  48  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  49  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  50  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  51  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  52  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  53  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  54  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  55  */
  56
  57 #include <sys/cdefs.h>
  58 __FBSDID("$FreeBSD$");
  59
  60 /*
  61  * driver for generic unknown PHYs
  62  */
  63
  64 #include <sys/param.h>
  65 #include <sys/systm.h>
  66 #include <sys/kernel.h>
  67 #include <sys/socket.h>
  68 #include <sys/errno.h>
  69 #include <sys/module.h>
  70 #include <sys/bus.h>
  71
  72 #include <net/if.h>
  73 #include <net/if_media.h>
  74
  75 #include <dev/mii/mii.h>
  76 #include <dev/mii/miivar.h>
  77
  78 #include "miibus_if.h"
  79
  80 static int ukphy_probe(device_t);
  81 static int ukphy_attach(device_t);
  82
  83 static device_method_t ukphy_methods[] = {
  84         /* device interface */
  85         DEVMETHOD(device_probe,         ukphy_probe),
  86         DEVMETHOD(device_attach,        ukphy_attach),
  87         DEVMETHOD(device_detach,        mii_phy_detach),
  88         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
  89         DEVMETHOD_END
  90 };
  91
  92 static devclass_t ukphy_devclass;
  93
  94 static driver_t ukphy_driver = {
  95         "ukphy",
  96         ukphy_methods,
  97         sizeof(struct mii_softc)
  98 };
  99
 100 DRIVER_MODULE(ukphy, miibus, ukphy_driver, ukphy_devclass, 0, 0);
 101
 102 static int      ukphy_service(struct mii_softc *, struct mii_data *, int);
 103
 104 static const struct mii_phy_funcs ukphy_funcs = {
 105         ukphy_service,
 106         ukphy_status,
 107         mii_phy_reset
 108 };
 109
 110 static int
 111 ukphy_probe(device_t dev)
 112 {
 113
 114         /*
 115          * We know something is here, so always match at a low priority.
 116          */
 117         device_set_desc(dev, "Generic IEEE 802.3u media interface");
 118         return (BUS_PROBE_GENERIC);
 119 }
 120
 121 static int
 122 ukphy_attach(device_t dev)
 123 {
 124         struct mii_softc *sc;
 125
 126         sc = device_get_softc(dev);
 127
 128         mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &ukphy_funcs, 1);
 129         mii_phy_setmedia(sc);
 130
 131         return (0);
 132 }
 133
 134 static int
 135 ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
 136 {
 137
 138         switch (cmd) {
 139         case MII_POLLSTAT:
 140                 break;
 141
 142         case MII_MEDIACHG:
 143                 /*
 144                  * If the interface is not up, don't do anything.
 145                  */
 146                 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
 147                         break;
 148
 149                 mii_phy_setmedia(sc);
 150                 break;
 151
 152         case MII_TICK:
 153                 if (mii_phy_tick(sc) == EJUSTRETURN)
 154                         return (0);
 155                 break;
 156         }
 157
 158         /* Update the media status. */
 159         PHY_STATUS(sc);
 160
 161         /* Callback if something changed. */
 162         mii_phy_update(sc, cmd);
 163         return (0);
 164 }