sys/arch/next68k/dev/if_xevar.h

   1 /*      $NetBSD: if_xevar.h,v 1.3 2002/09/11 01:46:31 mycroft Exp $     */
   2 /*
   3  * Copyright (c) 1998 Darrin B. Jewell
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by Darrin B. Jewell
  17  * 4. The name of the author may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 struct xe_softc {
  33         struct mb8795_softc     sc_mb8795;      /* glue to MI code */
  34
  35         bus_space_tag_t         sc_bst;         /* bus space tag */
  36         bus_space_handle_t      sc_bsh;         /* bus space handle */
  37
  38         struct nextdma_softc    *sc_rxdma;
  39         struct nextdma_softc    *sc_txdma;
  40
  41         bus_dmamap_t            sc_tx_dmamap;   /* should we have multiple of these? */
  42         struct mbuf             *sc_tx_mb_head; /* pointer to data for this command */
  43         int sc_tx_loaded;
  44         u_char                  *sc_txbuf;      /* to solve alignment problems, we
  45                                                  * copy the mbuf into this buffer before
  46                                                  * trying to DMA it */
  47
  48         bus_dmamap_t            sc_rx_dmamap[MB8795_NRXBUFS];
  49         struct mbuf             *sc_rx_mb_head[MB8795_NRXBUFS];
  50         int                     sc_rx_loaded_idx;
  51         int                     sc_rx_completed_idx;
  52         int                     sc_rx_handled_idx;
  53 };