ata_dbdma.h revision 331722 
1/*-
2 * Copyright 2008 by Nathan Whitehorn. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 * 3. The name of the author may not be used to endorse or promote products
13 *    derived from this software without specific prior written permission.
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,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: stable/11/sys/powerpc/powermac/ata_dbdma.h 331722 2018-03-29 02:50:57Z eadler $
28 */
29
30#ifndef ATA_DBDMA_H
31#define ATA_DBDMA_H
32
33#include <sys/param.h>
34#include <sys/lock.h>
35#include <sys/mutex.h>
36
37#include <machine/dbdma.h>
38
39struct ata_dbdma_channel {
40	struct ata_channel	sc_ch;
41
42	int			dbdma_rid;
43	struct resource		*dbdma_regs;
44	u_int			dbdma_offset;
45
46	dbdma_channel_t		*dbdma;
47	int			next_dma_slot;
48
49	struct mtx		dbdma_mtx;
50};
51
52void ata_dbdma_dmainit(device_t dev);
53
54#endif /* ATA_DBDMA_H */
55
56