1/*	$NetBSD: if_xevar.h,v 1.4 2003/05/03 18:10:55 wiz 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
27struct 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