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      1 /*	$NetBSD: if_xevar.h,v 1.5 2010/04/24 19:58:13 dbj 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  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 struct xe_softc {
     28 	struct mb8795_softc	sc_mb8795;	/* glue to MI code */
     29 
     30 	bus_space_tag_t		sc_bst;		/* bus space tag */
     31 	bus_space_handle_t	sc_bsh;		/* bus space handle */
     32 
     33 	struct nextdma_softc	*sc_rxdma;
     34 	struct nextdma_softc	*sc_txdma;
     35 
     36 	bus_dmamap_t		sc_tx_dmamap;	/* should we have multiple of these? */
     37 	struct mbuf		*sc_tx_mb_head;	/* pointer to data for this command */
     38 	int sc_tx_loaded;
     39 	u_char			*sc_txbuf;	/* to solve alignment problems, we
     40 						 * copy the mbuf into this buffer before
     41 						 * trying to DMA it */
     42 
     43 	bus_dmamap_t		sc_rx_dmamap[MB8795_NRXBUFS];
     44 	struct mbuf		*sc_rx_mb_head[MB8795_NRXBUFS];
     45 	int			sc_rx_loaded_idx;
     46 	int			sc_rx_completed_idx;
     47 	int			sc_rx_handled_idx;
     48 };
     49