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.
     *
     * 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 data structure 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;
            u_int mii_instance;
    
            /*
             * PHY driver fills this in with active media status.
             */
            u_int mii_media_status;
            u_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;
    
    /*
     * Functions provided by the PHY to perform various functions.
     */
    struct mii_phy_funcs {
            int (*pf_service)(struct mii_softc *, struct mii_data *, int);
            void (*pf_status)(struct mii_softc *);
            void (*pf_reset)(struct mii_softc *);
    };
    
    /*
     * 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 */
   
           uint32_t mii_mpd_oui;           /* the PHY's OUI (MII_OUI())*/
           uint32_t mii_mpd_model;         /* the PHY's model (MII_MODEL())*/
           uint32_t mii_mpd_rev;           /* the PHY's revision (MII_REV())*/
           u_int mii_capmask;              /* capability mask for BMSR */
           u_int mii_phy;                  /* our MII address */
           u_int mii_offset;               /* first PHY, second PHY, etc. */
           u_int mii_inst;                 /* instance for ifmedia */
   
           /* Our PHY functions. */
           const struct mii_phy_funcs *mii_funcs;
   
           struct mii_data *mii_pdata;     /* pointer to parent's mii_data */
   
           u_int mii_flags;                /* misc. flags; see below */
           u_int mii_capabilities;         /* capabilities from BMSR */
           u_int mii_extcapabilities;      /* extended capabilities */
           u_int mii_ticks;                /* MII_TICK counter */
           u_int mii_anegticks;            /* ticks before retrying aneg */
           u_int mii_media_active;         /* last active media */
           u_int mii_media_status;         /* last active status */
   };
   typedef struct mii_softc mii_softc_t;
   
   /* mii_flags */
   #define MIIF_INITDONE   0x00000001      /* has been initialized (mii_data) */
   #define MIIF_NOISOLATE  0x00000002      /* do not isolate the PHY */
   #if 0
   #define MIIF_NOLOOP     0x00000004      /* no loopback capability */
   #endif
   #define MIIF_DOINGAUTO  0x00000008      /* doing autonegotiation (mii_softc) */
   #define MIIF_AUTOTSLEEP 0x00000010      /* use tsleep(), not callout() */
   #define MIIF_HAVEFIBER  0x00000020      /* from parent: has fiber interface */
   #define MIIF_HAVE_GTCR  0x00000040      /* has 100base-T2/1000base-T CR */
   #define MIIF_IS_1000X   0x00000080      /* is a 1000BASE-X device */
   #define MIIF_DOPAUSE    0x00000100      /* advertise PAUSE capability */
   #define MIIF_IS_HPNA    0x00000200      /* is a HomePNA device */
   #define MIIF_FORCEANEG  0x00000400      /* force auto-negotiation */
   #define MIIF_NOMANPAUSE 0x00100000      /* no manual PAUSE selection */
   #define MIIF_FORCEPAUSE 0x00200000      /* force PAUSE advertisement */
   #define MIIF_MACPRIV0   0x01000000      /* private to the MAC driver */
   #define MIIF_MACPRIV1   0x02000000      /* private to the MAC driver */
   #define MIIF_MACPRIV2   0x04000000      /* private to the MAC driver */
   #define MIIF_PHYPRIV0   0x10000000      /* private to the PHY driver */
   #define MIIF_PHYPRIV1   0x20000000      /* private to the PHY driver */
   #define MIIF_PHYPRIV2   0x40000000      /* private to the PHY driver */
   
   /* Default mii_anegticks values */
   #define MII_ANEGTICKS           5
   #define MII_ANEGTICKS_GIGE      17
   
   #define MIIF_INHERIT_MASK       (MIIF_NOISOLATE|MIIF_NOLOOP|MIIF_AUTOTSLEEP)
   
   /*
    * Special `locators' passed to mii_attach().  If one of these is not
    * an `any' value, we look for *that* PHY and configure it.  If both
    * are not `any', that is an error, and mii_attach() will fail.
    */
   #define MII_OFFSET_ANY          -1
   #define MII_PHY_ANY             -1
   
   /*
    * Used to attach a PHY to a parent.
    */
   struct mii_attach_args {
           struct mii_data *mii_data;      /* pointer to parent data */
           u_int mii_phyno;                /* MII address */
           u_int mii_offset;               /* first PHY, second PHY, etc. */
           uint32_t mii_id1;               /* PHY ID register 1 */
           uint32_t mii_id2;               /* PHY ID register 2 */
           u_int mii_capmask;              /* capability mask for BMSR */
   };
   typedef struct mii_attach_args mii_attach_args_t;
   
   /*
    * Used to match a PHY.
    */
   struct mii_phydesc {
           uint32_t mpd_oui;               /* the PHY's OUI */
           uint32_t mpd_model;             /* the PHY's model */
           const char *mpd_name;           /* the PHY's name */
   };
   #define MII_PHY_DESC(a, b) { MII_OUI_ ## a, MII_MODEL_ ## a ## _ ## b, \
           MII_STR_ ## a ## _ ## b }
   #define MII_PHY_END     { 0, 0, NULL }
   
   /*
    * An array of these structures map MII media types to BMCR/ANAR settings.
    */
   struct mii_media {
           u_int   mm_bmcr;                /* BMCR settings for this media */
           u_int   mm_anar;                /* ANAR settings for this media */
           u_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))
   
   #define PHY_SERVICE(p, d, o) \
           (*(p)->mii_funcs->pf_service)((p), (d), (o))
   
   #define PHY_STATUS(p) \
           (*(p)->mii_funcs->pf_status)(p)
   
   #define PHY_RESET(p) \
           (*(p)->mii_funcs->pf_reset)(p)
   
   enum miibus_device_ivars {
           MIIBUS_IVAR_FLAGS
   };
   
   /*
    * Simplified accessors for miibus
    */
   #define MIIBUS_ACCESSOR(var, ivar, type)                                \
           __BUS_ACCESSOR(miibus, var, MIIBUS, ivar, type)
   
   MIIBUS_ACCESSOR(flags,          FLAGS,          u_int)
   
   extern devclass_t       miibus_devclass;
   extern driver_t         miibus_driver;
   
   int     mii_attach(device_t, device_t *, struct ifnet *, ifm_change_cb_t,
               ifm_stat_cb_t, int, int, int, 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 *);
   void    mii_phy_add_media(struct mii_softc *);
   
   int     mii_phy_auto(struct mii_softc *);
   int     mii_phy_detach(device_t dev);
   void    mii_phy_down(struct mii_softc *);
   u_int   mii_phy_flowstatus(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);
   const struct mii_phydesc * mii_phy_match_gen(const struct mii_attach_args *ma,
       const struct mii_phydesc *mpd, size_t endlen);
   int mii_phy_dev_probe(device_t dev, const struct mii_phydesc *mpd, int mrv);
   void mii_phy_dev_attach(device_t dev, u_int flags,
       const struct mii_phy_funcs *mpf, int add_media);
   
   void    ukphy_status(struct mii_softc *);
   
   u_int   mii_oui(u_int, u_int);
   #define MII_OUI(id1, id2)       mii_oui(id1, id2)
   #define MII_MODEL(id2)          (((id2) & IDR2_MODEL) >> 4)
   #define MII_REV(id2)            ((id2) & IDR2_REV)
   
   #endif /* _KERNEL */
   
   #endif /* _DEV_MII_MIIVAR_H_ */

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