1265056Smarcel/*- 2284080Smarcel * Copyright (c) 2014, 2015 Marcel Moolenaar 3265056Smarcel * All rights reserved. 4265056Smarcel * 5265056Smarcel * Redistribution and use in source and binary forms, with or without 6265056Smarcel * modification, are permitted provided that the following conditions 7265056Smarcel * are met: 8265056Smarcel * 9265056Smarcel * 1. Redistributions of source code must retain the above copyright 10265056Smarcel * notice, this list of conditions and the following disclaimer. 11265056Smarcel * 2. Redistributions in binary form must reproduce the above copyright 12265056Smarcel * notice, this list of conditions and the following disclaimer in the 13265056Smarcel * documentation and/or other materials provided with the distribution. 14265056Smarcel * 15265056Smarcel * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16265056Smarcel * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17265056Smarcel * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18265056Smarcel * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19265056Smarcel * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20265056Smarcel * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21265056Smarcel * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22265056Smarcel * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23265056Smarcel * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24265056Smarcel * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25265056Smarcel * 26265056Smarcel * $FreeBSD$ 27265056Smarcel */ 28265056Smarcel 29265056Smarcel#ifndef _LIBBUS_SPACE_H_ 30265056Smarcel#define _LIBBUS_SPACE_H_ 31265056Smarcel 32285903Smarcelint bus_map(const char *dev, const char *resource); 33284228Smarcelint16_t bus_read_1(int rid, long ofs); 34284228Smarcelint32_t bus_read_2(int rid, long ofs); 35284228Smarcelint64_t bus_read_4(int rid, long ofs); 36284228Smarcelint bus_subregion(int rid, long ofs, long sz); 37284228Smarcelint bus_unmap(int rid); 38284228Smarcelint bus_write_1(int rid, long ofs, uint8_t val); 39284228Smarcelint bus_write_2(int rid, long ofs, uint16_t val); 40284228Smarcelint bus_write_4(int rid, long ofs, uint32_t val); 41265056Smarcel 42284080Smarceltypedef unsigned long bus_addr_t; 43284080Smarceltypedef unsigned long bus_size_t; 44284080Smarceltypedef int busdma_tag_t; 45284146Smarceltypedef int busdma_md_t; 46284253Smarceltypedef int busdma_seg_t; 47284080Smarcel 48284080Smarcelint busdma_tag_create(const char *dev, bus_addr_t align, bus_addr_t bndry, 49284080Smarcel bus_addr_t maxaddr, bus_size_t maxsz, u_int nsegs, 50284080Smarcel bus_size_t maxsegsz, u_int datarate, u_int flags, 51284080Smarcel busdma_tag_t *out_p); 52284080Smarcelint busdma_tag_derive(busdma_tag_t tag, bus_addr_t align, bus_addr_t bndry, 53284080Smarcel bus_addr_t maxaddr, bus_size_t maxsz, u_int nsegs, 54284080Smarcel bus_size_t maxsegsz, u_int datarate, u_int flags, 55284080Smarcel busdma_tag_t *out_p); 56284080Smarcelint busdma_tag_destroy(busdma_tag_t tag); 57284080Smarcel 58284146Smarcelint busdma_mem_alloc(busdma_tag_t tag, u_int flags, busdma_md_t *out_p); 59284146Smarcelint busdma_mem_free(busdma_md_t md); 60284146Smarcel 61285071Smarcelint busdma_md_create(busdma_tag_t tag, u_int flags, busdma_md_t *out_p); 62285071Smarcelint busdma_md_destroy(busdma_md_t md); 63285071Smarcelint busdma_md_load(busdma_md_t md, void *buf, size_t len, u_int flags); 64285075Smarcelint busdma_md_unload(busdma_md_t md); 65285071Smarcel 66284253Smarcel#define BUSDMA_MD_BUS_SPACE 0 67284253Smarcel#define BUSDMA_MD_PHYS_SPACE 1 68284253Smarcel#define BUSDMA_MD_VIRT_SPACE 2 69284253Smarcel 70284253Smarcelint busdma_md_first_seg(busdma_md_t, int space); 71284253Smarcelint busdma_md_next_seg(busdma_md_t, busdma_seg_t seg); 72284253Smarcel 73284253Smarcelbus_addr_t busdma_seg_get_addr(busdma_seg_t seg); 74284253Smarcelbus_size_t busdma_seg_get_size(busdma_seg_t seg); 75284253Smarcel 76285075Smarcel#define BUSDMA_SYNC_PREREAD 1 77285075Smarcel#define BUSDMA_SYNC_POSTREAD 2 78285075Smarcel#define BUSDMA_SYNC_PREWRITE 4 79285075Smarcel#define BUSDMA_SYNC_POSTWRITE 8 80285075Smarcel 81286176Smarcelint busdma_sync(busdma_md_t md, int op); 82286176Smarcelint busdma_sync_range(busdma_md_t md, int op, bus_size_t, bus_size_t); 83285075Smarcel 84265056Smarcel#endif /* _LIBBUS_SPACE_H_ */ 85