FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/lancevar.h

     /*      $NetBSD: lancevar.h,v 1.12 2008/04/28 20:23:50 martin Exp $     */
     
     /*-
      * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Charles M. Hannum and 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.
     */
    
    #include "rnd.h"
    
    #if NRND > 0
    #include <sys/rnd.h>
    #endif
    
    struct lance_softc {
            device_t sc_dev;                /* base device glue */
            struct  ethercom sc_ethercom;   /* Ethernet common part */
            struct  ifmedia sc_media;       /* our supported media */
    
            /*
             * Memory functions:
             *
             *      copy to/from descriptor
             *      copy to/from buffer
             *      zero bytes in buffer
             */
            void    (*sc_copytodesc)
                       (struct lance_softc *, void *, int, int);
            void    (*sc_copyfromdesc)
                       (struct lance_softc *, void *, int, int);
            void    (*sc_copytobuf)
                       (struct lance_softc *, void *, int, int);
            void    (*sc_copyfrombuf)
                       (struct lance_softc *, void *, int, int);
            void    (*sc_zerobuf)
                       (struct lance_softc *, int, int);
    
            /*
             * Machine-dependent functions:
             *
             *      read/write CSR
             *      hardware reset hook - may be NULL
             *      hardware init hook - may be NULL
             *      no carrier hook - may be NULL
             *      media change hook - may be NULL
             */
            uint16_t (*sc_rdcsr)
                       (struct lance_softc *, uint16_t);
            void    (*sc_wrcsr)
                       (struct lance_softc *, uint16_t, uint16_t);
            void    (*sc_hwreset)(struct lance_softc *);
            void    (*sc_hwinit)(struct lance_softc *);
            void    (*sc_nocarrier)(struct lance_softc *);
            int     (*sc_mediachange)(struct lance_softc *);
            void    (*sc_mediastatus)(struct lance_softc *, struct ifmediareq *);
    
            /*
             * Media-supported by this interface.  If this is NULL,
             * the only supported media is assumed to be "manual".
             */
            const int       *sc_supmedia;
            int     sc_nsupmedia;
            int     sc_defaultmedia;
    
            /* PCnet bit to use software selection of a port */
            int     sc_initmodemedia;
    
            int     sc_havecarrier; /* carrier status */
    
            void    *sc_sh;         /* shutdownhook cookie */
    
            uint16_t sc_conf3;      /* CSR3 value */
            uint16_t sc_saved_csr0;/* Value of csr0 at time of interrupt */
    
            void    *sc_mem;        /* base address of RAM -- CPU's view */
           u_long  sc_addr;        /* base address of RAM -- LANCE's view */
   
           u_long  sc_memsize;     /* size of RAM */
   
           int     sc_nrbuf;       /* number of receive buffers */
           int     sc_ntbuf;       /* number of transmit buffers */
           int     sc_last_rd;
           int     sc_first_td, sc_last_td, sc_no_td;
   
           int     sc_initaddr;
           int     sc_rmdaddr;
           int     sc_tmdaddr;
           int     *sc_rbufaddr;
           int     *sc_tbufaddr;
   
   #ifdef LEDEBUG
           int     sc_debug;
   #endif
           uint8_t sc_enaddr[ETHER_ADDR_LEN];
           uint8_t sc_pad[2];
   #if NRND > 0
           rndsource_element_t     rnd_source;
   #endif
   
           void (*sc_meminit)(struct lance_softc *);
           void (*sc_start)(struct ifnet *);
   };
   
   void lance_config(struct lance_softc *);
   void lance_reset(struct lance_softc *);
   int lance_init(struct ifnet *);
   int lance_put(struct lance_softc *, int, struct mbuf *);
   void lance_read(struct lance_softc *, int, int);
   void lance_setladrf(struct ethercom *, uint16_t *);
   
   /*
    * The following functions are only useful on certain CPU/bus
    * combinations.  They should be written in assembly language for
    * maximum efficiency, but machine-independent versions are provided
    * for drivers that have not yet been optimized.
    */
   void lance_copytobuf_contig(struct lance_softc *, void *, int, int);
   void lance_copyfrombuf_contig(struct lance_softc *, void *, int, int);
   void lance_zerobuf_contig(struct lance_softc *, int, int);
   
   #if 0   /* Example only - see lance.c */
   void lance_copytobuf_gap2(struct lance_softc *, void *, int, int);
   void lance_copyfrombuf_gap2(struct lance_softc *, void *, int, int);
   void lance_zerobuf_gap2(struct lance_softc *, int, int);
   
   void lance_copytobuf_gap16(struct lance_softc *, void *, int, int);
   void lance_copyfrombuf_gap16(struct lance_softc *, void *, int, int);
   void lance_zerobuf_gap16(struct lance_softc *, int, int);
   #endif /* Example only */

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