FreeBSD/Linux Kernel Cross Reference
sys/dev/mii/miivar.h

     /*      $NetBSD: miivar.h,v 1.8 1999/04/23 04:24:32 thorpej Exp $       */
     
     /*-
      * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      * NASA Ames Research Center.
     *
     * 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 the NetBSD
     *      Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 THE FOUNDATION OR CONTRIBUTORS
     * 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.
     *
     * $FreeBSD$
     */
    
    #ifndef _DEV_MII_MIIVAR_H_
    #define _DEV_MII_MIIVAR_H_
    
    #include <sys/queue.h>
    
    /*
     * Media Independent Interface configuration defintions.
     */
    
    struct mii_softc;
    
    /*
     * Callbacks from MII layer into network interface device driver.
     */
    typedef int (*mii_readreg_t)(struct device *, int, int);
    typedef void (*mii_writereg_t)(struct device *, int, int, int);
    typedef void (*mii_statchg_t)(struct device *);
    
    /*
     * A network interface driver has one of these structures in its softc.
     * It is the interface from the network interface driver to the MII
     * layer.
     */
    struct mii_data {
            struct ifmedia mii_media;       /* media information */
            struct ifnet *mii_ifp;          /* pointer back to network interface */
    
            /*
             * For network interfaces with multiple PHYs, a list of all
             * PHYs is required so they can all be notified when a media
             * request is made.
             */
            LIST_HEAD(mii_listhead, mii_softc) mii_phys;
            int mii_instance;
    
            /*
             * PHY driver fills this in with active media status.
             */
            int mii_media_status;
            int mii_media_active;
    
            /*
             * Calls from MII layer into network interface driver.
             */
            mii_readreg_t mii_readreg;
            mii_writereg_t mii_writereg;
            mii_statchg_t mii_statchg;
    };
    typedef struct mii_data mii_data_t;
    
    /*
     * This call is used by the MII layer to call into the PHY driver
     * to perform a `service request'.
     */
    typedef int (*mii_downcall_t)(struct mii_softc *, struct mii_data *, int);
    
    /*
     * Requests that can be made to the downcall.
    */
   #define MII_TICK        1       /* once-per-second tick */
   #define MII_MEDIACHG    2       /* user changed media; perform the switch */
   #define MII_POLLSTAT    3       /* user requested media status; fill it in */
   
   /*
    * Each PHY driver's softc has one of these as the first member.
    * XXX This would be better named "phy_softc", but this is the name
    * XXX BSDI used, and we would like to have the same interface.
    */
   struct mii_softc {
           device_t mii_dev;               /* generic device glue */
           
           LIST_ENTRY(mii_softc) mii_list; /* entry on parent's PHY list */
   
           int mii_phy;                    /* our MII address */
           int mii_inst;                   /* instance for ifmedia */
   
           mii_downcall_t mii_service;     /* our downcall */
           struct mii_data *mii_pdata;     /* pointer to parent's mii_data */
   
           int mii_flags;                  /* misc. flags; see below */
           int mii_capabilities;           /* capabilities from BMSR */
           int mii_extcapabilities;        /* extended capabilities */
           int mii_ticks;                  /* MII_TICK counter */
           int mii_anegticks;              /* ticks before retrying aneg */
           int mii_media_active;           /* last active media */
           int mii_media_status;           /* last active status */
   };
   typedef struct mii_softc mii_softc_t;
   
   /* mii_flags */
   #define MIIF_INITDONE   0x0001          /* has been initialized (mii_data) */
   #define MIIF_NOISOLATE  0x0002          /* do not isolate the PHY */
   #define MIIF_NOLOOP     0x0004          /* no loopback capability */
   #define MIIF_AUTOTSLEEP 0x0010          /* use tsleep(), not callout() */
   #define MIIF_HAVEFIBER  0x0020          /* from parent: has fiber interface */
   #define MIIF_HAVE_GTCR  0x0040          /* has 100base-T2/1000base-T CR */
   #define MIIF_IS_1000X   0x0080          /* is a 1000BASE-X device */
   #define MIIF_DOPAUSE    0x0100          /* advertise PAUSE capability */
   #define MIIF_IS_HPNA    0x0200          /* is a HomePNA device */
   
   #define MIIF_INHERIT_MASK       (MIIF_NOISOLATE|MIIF_NOLOOP|MIIF_AUTOTSLEEP)
   
   /*
    * Used to attach a PHY to a parent.
    */
   struct mii_attach_args {
           struct mii_data *mii_data;      /* pointer to parent data */
           int mii_phyno;                  /* MII address */
           int mii_id1;                    /* PHY ID register 1 */
           int mii_id2;                    /* PHY ID register 2 */
           int mii_capmask;                /* capability mask from BMSR */
   };
   typedef struct mii_attach_args mii_attach_args_t;
   
   /*
    * Used to match a PHY.
    */
   struct mii_phydesc {
           u_int32_t mpd_oui;              /* the PHY's OUI */
           u_int32_t mpd_model;            /* the PHY's model */
           const char *mpd_name;           /* the PHY's name */
   };
   
   /*
    * An array of these structures map MII media types to BMCR/ANAR settings.
    */
   struct mii_media {
           int     mm_bmcr;                /* BMCR settings for this media */
           int     mm_anar;                /* ANAR settings for this media */
           int     mm_gtcr;                /* 100base-T2 or 1000base-T CR */
   };
   
   #define MII_MEDIA_NONE          0
   #define MII_MEDIA_10_T          1
   #define MII_MEDIA_10_T_FDX      2
   #define MII_MEDIA_100_T4        3
   #define MII_MEDIA_100_TX        4
   #define MII_MEDIA_100_TX_FDX    5
   #define MII_MEDIA_1000_X        6
   #define MII_MEDIA_1000_X_FDX    7
   #define MII_MEDIA_1000_T        8
   #define MII_MEDIA_1000_T_FDX    9
   #define MII_NMEDIA              10
   
   #ifdef _KERNEL
   
   #define PHY_READ(p, r) \
           MIIBUS_READREG((p)->mii_dev, (p)->mii_phy, (r))
   
   #define PHY_WRITE(p, r, v) \
           MIIBUS_WRITEREG((p)->mii_dev, (p)->mii_phy, (r), (v))
   
   extern devclass_t       miibus_devclass;
   extern driver_t         miibus_driver;
   
   int     miibus_probe(device_t);
   int     miibus_attach(device_t);
   int     miibus_detach(device_t);
   
   int     mii_anar(int);
   void    mii_down(struct mii_data *);
   int     mii_mediachg(struct mii_data *);
   void    mii_tick(struct mii_data *);
   void    mii_pollstat(struct mii_data *);
   int     mii_phy_probe(device_t, device_t *, ifm_change_cb_t, ifm_stat_cb_t);
   void    mii_add_media(struct mii_softc *);
   void    mii_phy_add_media(struct mii_softc *);
   
   int     mii_media_from_bmcr(int);
   
   int     mii_phy_auto(struct mii_softc *);
   int     mii_phy_detach(device_t dev);
   void    mii_phy_down(struct mii_softc *);
   void    mii_phy_reset(struct mii_softc *);
   void    mii_phy_setmedia(struct mii_softc *sc);
   void    mii_phy_update(struct mii_softc *, int);
   int     mii_phy_tick(struct mii_softc *);
   
   const struct mii_phydesc * mii_phy_match(const struct mii_attach_args *ma, const struct mii_phydesc *mpd);
   
   void    ukphy_status(struct mii_softc *);
   #endif /* _KERNEL */
   
   #endif /* _DEV_MII_MIIVAR_H_ */

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