FreeBSD/Linux Kernel Cross Reference
sys/dev/mii/rlswitch.c

     /*-
      * SPDX-License-Identifier: BSD-4-Clause
      *
      * Copyright (c) 1997, 1998, 1999
      *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
      * Copyright (c) 2006 Bernd Walter.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Bill Paul.
     * 4. Neither the name of the author nor the names of any co-contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     * THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    /*
     * driver for RealTek 8305 pseudo PHYs
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/module.h>
    #include <sys/socket.h>
    #include <sys/bus.h>
    #include <sys/taskqueue.h>      /* XXXGL: if_rlreg.h contamination */
    
    #include <net/if.h>
    #include <net/if_arp.h>
    #include <net/if_media.h>
    
    #include <dev/mii/mii.h>
    #include <dev/mii/miivar.h>
    #include "miidevs.h"
    
    #include <machine/bus.h>
    #include <dev/rl/if_rlreg.h>
    
    #include "miibus_if.h"
    
    //#define RL_DEBUG
    #define RL_VLAN
    
    static int rlswitch_probe(device_t);
    static int rlswitch_attach(device_t);
    
    static device_method_t rlswitch_methods[] = {
            /* device interface */
            DEVMETHOD(device_probe,         rlswitch_probe),
            DEVMETHOD(device_attach,        rlswitch_attach),
            DEVMETHOD(device_detach,        mii_phy_detach),
            DEVMETHOD(device_shutdown,      bus_generic_shutdown),
            DEVMETHOD_END
    };
    
    static driver_t rlswitch_driver = {
            "rlswitch",
            rlswitch_methods,
            sizeof(struct mii_softc)
    };
    
    DRIVER_MODULE(rlswitch, miibus, rlswitch_driver, 0, 0);
    
    static int      rlswitch_service(struct mii_softc *, struct mii_data *, int);
    static void     rlswitch_status(struct mii_softc *);
    
    #ifdef RL_DEBUG
    static void     rlswitch_phydump(device_t dev);
    #endif
    
    static const struct mii_phydesc rlswitches[] = {
            MII_PHY_DESC(REALTEK, RTL8305SC),
            MII_PHY_END
    };
    
    static const struct mii_phy_funcs rlswitch_funcs = {
           rlswitch_service,
           rlswitch_status,
           mii_phy_reset
   };
   
   static int
   rlswitch_probe(device_t dev)
   {
           int rv;
   
           rv = mii_phy_dev_probe(dev, rlswitches, BUS_PROBE_DEFAULT);
           if (rv <= 0)
                   return (rv);
   
           return (ENXIO);
   }
   
   static int
   rlswitch_attach(device_t dev)
   {
           struct mii_softc        *sc;
   
           sc = device_get_softc(dev);
   
           /*
            * We handle all pseudo PHYs in a single instance.
            */
           mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
               &rlswitch_funcs, 0);
   
           sc->mii_capabilities = BMSR_100TXFDX & sc->mii_capmask;
           device_printf(dev, " ");
           mii_phy_add_media(sc);
           printf("\n");
   #ifdef RL_DEBUG
           rlswitch_phydump(dev);
   #endif
   
   #ifdef RL_VLAN
           int val;
   
           /* Global Control 0 */
           val = 0;
           val |= 0 << 10;         /* enable 802.1q VLAN Tag support */
           val |= 0 << 9;          /* enable VLAN ingress filtering */
           val |= 1 << 8;          /* disable VLAN tag admit control */
           val |= 1 << 6;          /* internal use */
           val |= 1 << 5;          /* internal use */
           val |= 1 << 4;          /* internal use */
           val |= 1 << 3;          /* internal use */
           val |= 1 << 1;          /* reserved */
           MIIBUS_WRITEREG(sc->mii_dev, 0, 16, val);
   
           /* Global Control 2 */
           val = 0;
           val |= 1 << 15;         /* reserved */
           val |= 0 << 14;         /* enable 1552 Bytes support */
           val |= 1 << 13;         /* enable broadcast input drop */
           val |= 1 << 12;         /* forward reserved control frames */
           val |= 1 << 11;         /* disable forwarding unicast frames to other VLAN's */
           val |= 1 << 10;         /* disable forwarding ARP broadcasts to other VLAN's */
           val |= 1 << 9;          /* enable 48 pass 1 */
           val |= 0 << 8;          /* enable VLAN */
           val |= 1 << 7;          /* reserved */
           val |= 1 << 6;          /* enable defer */
           val |= 1 << 5;          /* 43ms LED blink time */
           val |= 3 << 3;          /* 16:1 queue weight */
           val |= 1 << 2;          /* disable broadcast storm control */
           val |= 1 << 1;          /* enable power-on LED blinking */
           val |= 1 << 0;          /* reserved */
           MIIBUS_WRITEREG(sc->mii_dev, 0, 18, val);
   
           /* Port 0 Control Register 0 */
           val = 0;
           val |= 1 << 15;         /* reserved */
           val |= 1 << 11;         /* drop received packets with wrong VLAN tag */
           val |= 1 << 10;         /* disable 802.1p priority classification */
           val |= 1 << 9;          /* disable diffserv priority classification */
           val |= 1 << 6;          /* internal use */
           val |= 3 << 4;          /* internal use */
           val |= 1 << 3;          /* internal use */
           val |= 1 << 2;          /* internal use */
           val |= 1 << 0;          /* remove VLAN tags on output */
           MIIBUS_WRITEREG(sc->mii_dev, 0, 22, val);
   
           /* Port 1 Control Register 0 */
           val = 0;
           val |= 1 << 15;         /* reserved */
           val |= 1 << 11;         /* drop received packets with wrong VLAN tag */
           val |= 1 << 10;         /* disable 802.1p priority classification */
           val |= 1 << 9;          /* disable diffserv priority classification */
           val |= 1 << 6;          /* internal use */
           val |= 3 << 4;          /* internal use */
           val |= 1 << 3;          /* internal use */
           val |= 1 << 2;          /* internal use */
           val |= 1 << 0;          /* remove VLAN tags on output */
           MIIBUS_WRITEREG(sc->mii_dev, 1, 22, val);
   
           /* Port 2 Control Register 0 */
           val = 0;
           val |= 1 << 15;         /* reserved */
           val |= 1 << 11;         /* drop received packets with wrong VLAN tag */
           val |= 1 << 10;         /* disable 802.1p priority classification */
           val |= 1 << 9;          /* disable diffserv priority classification */
           val |= 1 << 6;          /* internal use */
           val |= 3 << 4;          /* internal use */
           val |= 1 << 3;          /* internal use */
           val |= 1 << 2;          /* internal use */
           val |= 1 << 0;          /* remove VLAN tags on output */
           MIIBUS_WRITEREG(sc->mii_dev, 2, 22, val);
   
           /* Port 3 Control Register 0 */
           val = 0;
           val |= 1 << 15;         /* reserved */
           val |= 1 << 11;         /* drop received packets with wrong VLAN tag */
           val |= 1 << 10;         /* disable 802.1p priority classification */
           val |= 1 << 9;          /* disable diffserv priority classification */
           val |= 1 << 6;          /* internal use */
           val |= 3 << 4;          /* internal use */
           val |= 1 << 3;          /* internal use */
           val |= 1 << 2;          /* internal use */
           val |= 1 << 0;          /* remove VLAN tags on output */
           MIIBUS_WRITEREG(sc->mii_dev, 3, 22, val);
   
           /* Port 4 (system port) Control Register 0 */
           val = 0;
           val |= 1 << 15;         /* reserved */
           val |= 0 << 11;         /* don't drop received packets with wrong VLAN tag */
           val |= 1 << 10;         /* disable 802.1p priority classification */
           val |= 1 << 9;          /* disable diffserv priority classification */
           val |= 1 << 6;          /* internal use */
           val |= 3 << 4;          /* internal use */
           val |= 1 << 3;          /* internal use */
           val |= 1 << 2;          /* internal use */
           val |= 2 << 0;          /* add VLAN tags for untagged packets on output */
           MIIBUS_WRITEREG(sc->mii_dev, 4, 22, val);
   
           /* Port 0 Control Register 1 and VLAN A */
           val = 0;
           val |= 0x0 << 12;       /* Port 0 VLAN Index */
           val |= 1 << 11;         /* internal use */
           val |= 1 << 10;         /* internal use */
           val |= 1 << 9;          /* internal use */
           val |= 1 << 7;          /* internal use */
           val |= 1 << 6;          /* internal use */
           val |= 0x11 << 0;       /* VLAN A membership */
           MIIBUS_WRITEREG(sc->mii_dev, 0, 24, val);
   
           /* Port 0 Control Register 2 and VLAN A */
           val = 0;
           val |= 1 << 15;         /* internal use */
           val |= 1 << 14;         /* internal use */
           val |= 1 << 13;         /* internal use */
           val |= 1 << 12;         /* internal use */
           val |= 0x100 << 0;      /* VLAN A ID */
           MIIBUS_WRITEREG(sc->mii_dev, 0, 25, val);
   
           /* Port 1 Control Register 1 and VLAN B */
           val = 0;
           val |= 0x1 << 12;       /* Port 1 VLAN Index */
           val |= 1 << 11;         /* internal use */
           val |= 1 << 10;         /* internal use */
           val |= 1 << 9;          /* internal use */
           val |= 1 << 7;          /* internal use */
           val |= 1 << 6;          /* internal use */
           val |= 0x12 << 0;       /* VLAN B membership */
           MIIBUS_WRITEREG(sc->mii_dev, 1, 24, val);
   
           /* Port 1 Control Register 2 and VLAN B */
           val = 0;
           val |= 1 << 15;         /* internal use */
           val |= 1 << 14;         /* internal use */
           val |= 1 << 13;         /* internal use */
           val |= 1 << 12;         /* internal use */
           val |= 0x101 << 0;      /* VLAN B ID */
           MIIBUS_WRITEREG(sc->mii_dev, 1, 25, val);
   
           /* Port 2 Control Register 1 and VLAN C */
           val = 0;
           val |= 0x2 << 12;       /* Port 2 VLAN Index */
           val |= 1 << 11;         /* internal use */
           val |= 1 << 10;         /* internal use */
           val |= 1 << 9;          /* internal use */
           val |= 1 << 7;          /* internal use */
           val |= 1 << 6;          /* internal use */
           val |= 0x14 << 0;       /* VLAN C membership */
           MIIBUS_WRITEREG(sc->mii_dev, 2, 24, val);
   
           /* Port 2 Control Register 2 and VLAN C */
           val = 0;
           val |= 1 << 15;         /* internal use */
           val |= 1 << 14;         /* internal use */
           val |= 1 << 13;         /* internal use */
           val |= 1 << 12;         /* internal use */
           val |= 0x102 << 0;      /* VLAN C ID */
           MIIBUS_WRITEREG(sc->mii_dev, 2, 25, val);
   
           /* Port 3 Control Register 1 and VLAN D */
           val = 0;
           val |= 0x3 << 12;       /* Port 3 VLAN Index */
           val |= 1 << 11;         /* internal use */
           val |= 1 << 10;         /* internal use */
           val |= 1 << 9;          /* internal use */
           val |= 1 << 7;          /* internal use */
           val |= 1 << 6;          /* internal use */
           val |= 0x18 << 0;       /* VLAN D membership */
           MIIBUS_WRITEREG(sc->mii_dev, 3, 24, val);
   
           /* Port 3 Control Register 2 and VLAN D */
           val = 0;
           val |= 1 << 15;         /* internal use */
           val |= 1 << 14;         /* internal use */
           val |= 1 << 13;         /* internal use */
           val |= 1 << 12;         /* internal use */
           val |= 0x103 << 0;      /* VLAN D ID */
           MIIBUS_WRITEREG(sc->mii_dev, 3, 25, val);
   
           /* Port 4 Control Register 1 and VLAN E */
           val = 0;
           val |= 0x0 << 12;       /* Port 4 VLAN Index */
           val |= 1 << 11;         /* internal use */
           val |= 1 << 10;         /* internal use */
           val |= 1 << 9;          /* internal use */
           val |= 1 << 7;          /* internal use */
           val |= 1 << 6;          /* internal use */
           val |= 0 << 0;          /* VLAN E membership */
           MIIBUS_WRITEREG(sc->mii_dev, 4, 24, val);
   
           /* Port 4 Control Register 2 and VLAN E */
           val = 0;
           val |= 1 << 15;         /* internal use */
           val |= 1 << 14;         /* internal use */
           val |= 1 << 13;         /* internal use */
           val |= 1 << 12;         /* internal use */
           val |= 0x104 << 0;      /* VLAN E ID */
           MIIBUS_WRITEREG(sc->mii_dev, 4, 25, val);
   #endif
   
   #ifdef RL_DEBUG
           rlswitch_phydump(dev);
   #endif
           MIIBUS_MEDIAINIT(sc->mii_dev);
           return (0);
   }
   
   static int
   rlswitch_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
   {
   
           switch (cmd) {
           case MII_POLLSTAT:
                   break;
   
           case MII_MEDIACHG:
                   break;
   
           case MII_TICK:
                   break;
           }
   
           /* Update the media status. */
           PHY_STATUS(sc);
   
           /* Callback if something changed. */
           // mii_phy_update(sc, cmd);
           return (0);
   }
   
   static void
   rlswitch_status(struct mii_softc *phy)
   {
           struct mii_data *mii = phy->mii_pdata;
   
           mii->mii_media_status = IFM_AVALID;
           mii->mii_media_active = IFM_ETHER;
           mii->mii_media_status |= IFM_ACTIVE;
           mii->mii_media_active |=
               IFM_100_TX | IFM_FDX | mii_phy_flowstatus(phy);
   }
   
   #ifdef RL_DEBUG
   static void
   rlswitch_phydump(device_t dev) {
           int phy, reg, val;
           struct mii_softc *sc;
   
           sc = device_get_softc(dev);
           device_printf(dev, "rlswitchphydump\n");
           for (phy = 0; phy <= 5; phy++) {
                   printf("PHY%i:", phy);
                   for (reg = 0; reg <= 31; reg++) {
                           val = MIIBUS_READREG(sc->mii_dev, phy, reg);
                           printf(" 0x%x", val);
                   }
                   printf("\n");
           }
   }
   #endif

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