1 /*- 2 * Copyright (c) 2015 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 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 #ifndef _TOOLS_BUS_DMA_H_ 28 #define _TOOLS_BUS_DMA_H_ 29 30 int bd_tag_create(const char *dev, u_long align, u_long bndry, 31 u_long maxaddr, u_long maxsz, u_int nsegs, u_long maxsegsz, 32 u_int datarate, u_int flags); 33 int bd_tag_derive(int tid, u_long align, u_long bndry, u_long maxaddr, 34 u_long maxsz, u_int nsegs, u_long maxsegsz, u_int datarate, 35 u_int flags); 36 int bd_tag_destroy(int tid); 37 38 int bd_md_create(int tid, u_int flags); 39 int bd_md_destroy(int mdid); 40 int bd_md_load(int mdid, void *buf, u_long len, u_int flags); 41 int bd_md_unload(int mdid); 42 43 int bd_mem_alloc(int tid, u_int flags); 44 int bd_mem_free(int mdid); 45 46 int bd_md_first_seg(int mdid, int what); 47 int bd_md_next_seg(int mdid, int sid); 48 49 int bd_seg_get_addr(int sid, u_long *); 50 int bd_seg_get_size(int sid, u_long *); 51 52 int bd_sync(int mdid, u_int op, u_long ofs, u_long len); 53 54 #endif /* _TOOLS_BUS_DMA_H_ */ 55