truephy.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
    5  * 
    6  * This code is derived from software contributed to The DragonFly Project
    7  * by Sepherosa Ziehau <sepherosa@gmail.com>
    8  * 
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in
   17  *    the documentation and/or other materials provided with the
   18  *    distribution.
   19  * 3. Neither the name of The DragonFly Project nor the names of its
   20  *    contributors may be used to endorse or promote products derived
   21  *    from this software without specific, prior written permission.
   22  * 
   23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   26  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
   27  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   28  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
   29  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   30  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   31  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   32  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   33  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   34  * SUCH DAMAGE.
   35  * 
   36  * $DragonFly: src/sys/dev/netif/mii_layer/truephy.c,v 1.3 2008/02/10 07:29:27 sephe Exp $
   37  * $FreeBSD$
   38  */
   39 
   40 #include <sys/param.h>
   41 #include <sys/systm.h>
   42 #include <sys/kernel.h>
   43 #include <sys/socket.h>
   44 #include <sys/errno.h>
   45 #include <sys/module.h>
   46 #include <sys/bus.h>
   47 
   48 #include <net/if.h>
   49 #include <net/if_var.h>
   50 #include <net/if_media.h>
   51 #include <net/if_arp.h>
   52 #include <net/ethernet.h>
   53 #include <net/if_vlan_var.h>
   54 
   55 #include <dev/mii/mii.h>
   56 #include <dev/mii/miivar.h>
   57 #include "miidevs.h"
   58 
   59 #include <dev/mii/truephyreg.h>
   60 
   61 #include "miibus_if.h"
   62 
   63 #define TRUEPHY_FRAMELEN(mtu)   \
   64     (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + (mtu) + ETHER_CRC_LEN)
   65 
   66 static int      truephy_service(struct mii_softc *, struct mii_data *, int);
   67 static int      truephy_attach(device_t);
   68 static int      truephy_probe(device_t);
   69 static void     truephy_reset(struct mii_softc *);
   70 static void     truephy_status(struct mii_softc *);
   71 
   72 static device_method_t truephy_methods[] = {
   73         /* device interface */
   74         DEVMETHOD(device_probe,         truephy_probe),
   75         DEVMETHOD(device_attach,        truephy_attach),
   76         DEVMETHOD(device_detach,        mii_phy_detach),
   77         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
   78         DEVMETHOD_END
   79 };
   80 
   81 static const struct mii_phydesc truephys[] = {
   82         MII_PHY_DESC(AGERE,     ET1011),
   83         MII_PHY_DESC(AGERE,     ET1011C),
   84         MII_PHY_END
   85 };
   86 
   87 static devclass_t truephy_devclass;
   88 
   89 static driver_t truephy_driver = {
   90         "truephy",
   91         truephy_methods,
   92         sizeof(struct mii_softc)
   93 };
   94 
   95 DRIVER_MODULE(truephy, miibus, truephy_driver, truephy_devclass, 0, 0);
   96 
   97 static const struct mii_phy_funcs truephy_funcs = {
   98         truephy_service,
   99         truephy_status,
  100         truephy_reset
  101 };
  102 
  103 static const struct truephy_dsp {
  104         uint16_t        index;
  105         uint16_t        data;
  106 } truephy_dspcode[] = {
  107         { 0x880b,       0x0926 },       /* AfeIfCreg4B1000Msbs */
  108         { 0x880c,       0x0926 },       /* AfeIfCreg4B100Msbs */
  109         { 0x880d,       0x0926 },       /* AfeIfCreg4B10Msbs */
  110 
  111         { 0x880e,       0xb4d3 },       /* AfeIfCreg4B1000Lsbs */
  112         { 0x880f,       0xb4d3 },       /* AfeIfCreg4B100Lsbs */
  113         { 0x8810,       0xb4d3 },       /* AfeIfCreg4B10Lsbs */
  114 
  115         { 0x8805,       0xb03e },       /* AfeIfCreg3B1000Msbs */
  116         { 0x8806,       0xb03e },       /* AfeIfCreg3B100Msbs */
  117         { 0x8807,       0xff00 },       /* AfeIfCreg3B10Msbs */
  118 
  119         { 0x8808,       0xe090 },       /* AfeIfCreg3B1000Lsbs */
  120         { 0x8809,       0xe110 },       /* AfeIfCreg3B100Lsbs */
  121         { 0x880a,       0x0000 },       /* AfeIfCreg3B10Lsbs */
  122 
  123         { 0x300d,       1      },       /* DisableNorm */
  124 
  125         { 0x280c,       0x0180 },       /* LinkHoldEnd */
  126 
  127         { 0x1c21,       0x0002 },       /* AlphaM */
  128 
  129         { 0x3821,       6      },       /* FfeLkgTx0 */
  130         { 0x381d,       1      },       /* FfeLkg1g4 */
  131         { 0x381e,       1      },       /* FfeLkg1g5 */
  132         { 0x381f,       1      },       /* FfeLkg1g6 */
  133         { 0x3820,       1      },       /* FfeLkg1g7 */
  134 
  135         { 0x8402,       0x01f0 },       /* Btinact */
  136         { 0x800e,       20     },       /* LftrainTime */
  137         { 0x800f,       24     },       /* DvguardTime */
  138         { 0x8010,       46     }        /* IdlguardTime */
  139 };
  140 
  141 static int
  142 truephy_probe(device_t dev)
  143 {
  144 
  145         return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT));
  146 }
  147 
  148 static int
  149 truephy_attach(device_t dev)
  150 {
  151         struct mii_softc *sc;
  152 
  153         sc = device_get_softc(dev);
  154 
  155         mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
  156            &truephy_funcs, 0);
  157 
  158         PHY_RESET(sc);
  159 
  160         sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
  161         if (sc->mii_capabilities & BMSR_EXTSTAT) {
  162                 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
  163                 /* No 1000baseT half-duplex support */
  164                 sc->mii_extcapabilities &= ~EXTSR_1000THDX;
  165         }
  166 
  167         device_printf(dev, " ");
  168         mii_phy_add_media(sc);
  169         printf("\n");
  170 
  171         MIIBUS_MEDIAINIT(sc->mii_dev);
  172         return (0);
  173 }
  174 
  175 static int
  176 truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
  177 {
  178         struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
  179         int bmcr;
  180 
  181         switch (cmd) {
  182         case MII_POLLSTAT:
  183                 break;
  184 
  185         case MII_MEDIACHG:
  186                 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
  187                         bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN;
  188                         PHY_WRITE(sc, MII_BMCR, bmcr);
  189                         PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN);
  190                 }
  191 
  192                 mii_phy_setmedia(sc);
  193 
  194                 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
  195                         bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN;
  196                         PHY_WRITE(sc, MII_BMCR, bmcr);
  197 
  198                         if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
  199                                 PHY_WRITE(sc, MII_BMCR,
  200                                     bmcr | BMCR_AUTOEN | BMCR_STARTNEG);
  201                         }
  202                 }
  203                 break;
  204 
  205         case MII_TICK:
  206                 if (mii_phy_tick(sc) == EJUSTRETURN)
  207                         return (0);
  208                 break;
  209         }
  210 
  211         /* Update the media status. */
  212         PHY_STATUS(sc);
  213 
  214         /* Callback if something changed. */
  215         mii_phy_update(sc, cmd);
  216         return (0);
  217 }
  218 
  219 static void
  220 truephy_reset(struct mii_softc *sc)
  221 {
  222         int i;
  223 
  224         if (sc->mii_mpd_model == MII_MODEL_AGERE_ET1011) {
  225                 mii_phy_reset(sc);
  226                 return;
  227         }
  228 
  229         for (i = 0; i < 2; ++i) {
  230                 PHY_READ(sc, MII_PHYIDR1);
  231                 PHY_READ(sc, MII_PHYIDR2);
  232 
  233                 PHY_READ(sc, TRUEPHY_CTRL);
  234                 PHY_WRITE(sc, TRUEPHY_CTRL,
  235                           TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1);
  236 
  237                 PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC);
  238                 PHY_READ(sc, TRUEPHY_DATA);
  239 
  240                 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
  241         }
  242 
  243         PHY_READ(sc, MII_BMCR);
  244         PHY_READ(sc, TRUEPHY_CTRL);
  245         PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000);
  246         PHY_WRITE(sc, TRUEPHY_CTRL,
  247                   TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0);
  248 
  249         for (i = 0; i < nitems(truephy_dspcode); ++i) {
  250                 const struct truephy_dsp *dsp = &truephy_dspcode[i];
  251 
  252                 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
  253                 PHY_WRITE(sc, TRUEPHY_DATA, dsp->data);
  254 
  255                 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
  256                 PHY_READ(sc, TRUEPHY_DATA);
  257         }
  258 
  259         PHY_READ(sc, MII_BMCR);
  260         PHY_READ(sc, TRUEPHY_CTRL);
  261         PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN |  BMCR_S1000);
  262         PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
  263 
  264         mii_phy_reset(sc);
  265 
  266         if (TRUEPHY_FRAMELEN((if_getmtu(sc->mii_pdata->mii_ifp)) > 2048)) {
  267                 int conf;
  268 
  269                 conf = PHY_READ(sc, TRUEPHY_CONF);
  270                 conf &= ~TRUEPHY_CONF_TXFIFO_MASK;
  271                 conf |= TRUEPHY_CONF_TXFIFO_24;
  272                 PHY_WRITE(sc, TRUEPHY_CONF, conf);
  273         }
  274 }
  275 
  276 static void
  277 truephy_status(struct mii_softc *sc)
  278 {
  279         struct mii_data *mii = sc->mii_pdata;
  280         int bmsr, bmcr, sr;
  281 
  282         mii->mii_media_status = IFM_AVALID;
  283         mii->mii_media_active = IFM_ETHER;
  284 
  285         sr = PHY_READ(sc, TRUEPHY_SR);
  286         bmcr = PHY_READ(sc, MII_BMCR);
  287 
  288         bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
  289         if (bmsr & BMSR_LINK)
  290                 mii->mii_media_status |= IFM_ACTIVE;
  291 
  292         if (bmcr & BMCR_AUTOEN) {
  293                 if ((bmsr & BMSR_ACOMP) == 0) {
  294                         mii->mii_media_active |= IFM_NONE;
  295                         return;
  296                 }
  297         }
  298 
  299         switch (sr & TRUEPHY_SR_SPD_MASK) {
  300         case TRUEPHY_SR_SPD_1000T:
  301                 mii->mii_media_active |= IFM_1000_T;
  302                 break;
  303         case TRUEPHY_SR_SPD_100TX:
  304                 mii->mii_media_active |= IFM_100_TX;
  305                 break;
  306         case TRUEPHY_SR_SPD_10T:
  307                 mii->mii_media_active |= IFM_10_T;
  308                 break;
  309         default:
  310                 /* XXX will this ever happen? */
  311                 printf("invalid media SR %#x\n", sr);
  312                 mii->mii_media_active |= IFM_NONE;
  313                 return;
  314         }
  315 
  316         if (sr & TRUEPHY_SR_FDX)
  317                 mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc);
  318         else
  319                 mii->mii_media_active |= IFM_HDX;
  320 }
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FreeBSD/Linux Kernel Cross Reference sys/dev/mii/truephy.c

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sys/dev/mii/truephy.c
