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 _TOOLS_BUS_DMA_H_
30 #define _TOOLS_BUS_DMA_H_
32 int bd_tag_create(const char *dev, u_long align, u_long bndry,
33 u_long maxaddr, u_long maxsz, u_int nsegs, u_long maxsegsz,
34 u_int datarate, u_int flags);
35 int bd_tag_derive(int tid, u_long align, u_long bndry, u_long maxaddr,
36 u_long maxsz, u_int nsegs, u_long maxsegsz, u_int datarate,
38 int bd_tag_destroy(int tid);
40 int bd_md_create(int tid, u_int flags);
41 int bd_md_destroy(int mdid);
42 int bd_md_load(int mdid, void *buf, u_long len, u_int flags);
43 int bd_md_unload(int mdid);
45 int bd_mem_alloc(int tid, u_int flags);
46 int bd_mem_free(int mdid);
48 int bd_md_first_seg(int mdid, int what);
49 int bd_md_next_seg(int mdid, int sid);
51 int bd_seg_get_addr(int sid, u_long *);
52 int bd_seg_get_size(int sid, u_long *);
54 int bd_sync(int mdid, u_int op, u_long ofs, u_long len);
56 #endif /* _TOOLS_BUS_DMA_H_ */