The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*      $NetBSD: hmevar.h,v 1.17 2008/04/28 20:23:50 martin Exp $       */
    2 
    3 /*-
    4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Paul Kranenburg.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   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 the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 #include "rnd.h"
   33 
   34 #include <sys/callout.h>
   35 #if NRND > 0
   36 #include <sys/rnd.h>
   37 #endif
   38 
   39 
   40 struct hme_ring {
   41         /* Ring Descriptors */
   42         void *          rb_membase;     /* Packet buffer: CPU address */
   43         bus_addr_t      rb_dmabase;     /* Packet buffer: DMA address */
   44         void *          rb_txd;         /* Transmit descriptors */
   45         bus_addr_t      rb_txddma;      /* DMA address of same */
   46         void *          rb_rxd;         /* Receive descriptors */
   47         bus_addr_t      rb_rxddma;      /* DMA address of same */
   48         void *          rb_txbuf;       /* Transmit buffers */
   49         void *          rb_rxbuf;       /* Receive buffers */
   50         int             rb_ntbuf;       /* # of transmit buffers */
   51         int             rb_nrbuf;       /* # of receive buffers */
   52 
   53         /* Ring Descriptor state */
   54         int     rb_tdhead, rb_tdtail;
   55         int     rb_rdtail;
   56         int     rb_td_nbusy;
   57 };
   58 
   59 struct hme_softc {
   60         struct device   sc_dev;         /* boilerplate device view */
   61         struct ethercom sc_ethercom;    /* Ethernet common part */
   62         struct mii_data sc_mii;         /* MII media control */
   63         struct callout  sc_tick_ch;     /* tick callout */
   64 
   65         /* The following bus handles are to be provided by the bus front-end */
   66         bus_space_tag_t sc_bustag;      /* bus tag */
   67         bus_dma_tag_t   sc_dmatag;      /* bus dma tag */
   68         bus_dmamap_t    sc_dmamap;      /* bus dma handle */
   69         bus_space_handle_t sc_seb;      /* HME Global registers */
   70         bus_space_handle_t sc_erx;      /* HME ERX registers */
   71         bus_space_handle_t sc_etx;      /* HME ETX registers */
   72         bus_space_handle_t sc_mac;      /* HME MAC registers */
   73         bus_space_handle_t sc_mif;      /* HME MIF registers */
   74         int             sc_burst;       /* DVMA burst size in effect */
   75         int             sc_phys[2];     /* MII instance -> PHY map */
   76 
   77         int             sc_pci;         /* XXXXX -- PCI buses are LE. */
   78 
   79         /* Ring descriptor */
   80         struct hme_ring         sc_rb;
   81 #if notused
   82         void            (*sc_copytobuf)(struct hme_softc *,
   83                                              void *, void *, size_t);
   84         void            (*sc_copyfrombuf)(struct hme_softc *,
   85                                               void *, void *, size_t);
   86 #endif
   87 
   88         int                     sc_debug;
   89         void                    *sc_sh;         /* shutdownhook cookie */
   90         int                     sc_ec_capenable;
   91         short                   sc_if_flags;
   92         u_int8_t                sc_enaddr[ETHER_ADDR_LEN]; /* MAC address */
   93 
   94         /* Special hardware hooks */
   95         void    (*sc_hwreset)(struct hme_softc *);
   96         void    (*sc_hwinit)(struct hme_softc *);
   97 
   98 #if NRND > 0
   99         rndsource_element_t     rnd_source;
  100 #endif
  101 };
  102 
  103 
  104 void    hme_config(struct hme_softc *);
  105 void    hme_reset(struct hme_softc *);
  106 int     hme_intr(void *);

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