2 * Copyright (c) 2015 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
29 #ifndef _DEV_PROTO_BUSDMA_H_
30 #define _DEV_PROTO_BUSDMA_H_
35 LIST_ENTRY(proto_tag) tags;
36 struct proto_tag *parent;
37 LIST_ENTRY(proto_tag) peers;
38 LIST_HEAD(,proto_tag) children;
39 LIST_HEAD(,proto_md) mds;
50 LIST_ENTRY(proto_md) mds;
51 LIST_ENTRY(proto_md) peers;
52 struct proto_tag *tag;
60 LIST_HEAD(,proto_tag) tags;
61 LIST_HEAD(,proto_md) mds;
62 bus_dma_tag_t bd_roottag;
65 struct proto_busdma *proto_busdma_attach(struct proto_softc *);
66 int proto_busdma_detach(struct proto_softc *, struct proto_busdma *);
68 int proto_busdma_cleanup(struct proto_softc *, struct proto_busdma *);
70 int proto_busdma_ioctl(struct proto_softc *, struct proto_busdma *,
71 struct proto_ioc_busdma *, struct thread *);
73 int proto_busdma_mmap_allowed(struct proto_busdma *, vm_paddr_t);
75 #endif /* _DEV_PROTO_BUSDMA_H_ */