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/*-
* Copyright (c) 2014, 2015 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LIBBUS_SPACE_H_
#define _LIBBUS_SPACE_H_
int bus_map(const char *dev, const char *resource);
int16_t bus_read_1(int rid, long ofs);
int32_t bus_read_2(int rid, long ofs);
int64_t bus_read_4(int rid, long ofs);
int bus_subregion(int rid, long ofs, long sz);
int bus_unmap(int rid);
int bus_write_1(int rid, long ofs, uint8_t val);
int bus_write_2(int rid, long ofs, uint16_t val);
int bus_write_4(int rid, long ofs, uint32_t val);
typedef unsigned long bus_addr_t;
typedef unsigned long bus_size_t;
typedef int busdma_tag_t;
typedef int busdma_md_t;
typedef int busdma_seg_t;
int busdma_tag_create(const char *dev, bus_addr_t align, bus_addr_t bndry,
bus_addr_t maxaddr, bus_size_t maxsz, u_int nsegs,
bus_size_t maxsegsz, u_int datarate, u_int flags,
busdma_tag_t *out_p);
int busdma_tag_derive(busdma_tag_t tag, bus_addr_t align, bus_addr_t bndry,
bus_addr_t maxaddr, bus_size_t maxsz, u_int nsegs,
bus_size_t maxsegsz, u_int datarate, u_int flags,
busdma_tag_t *out_p);
int busdma_tag_destroy(busdma_tag_t tag);
int busdma_mem_alloc(busdma_tag_t tag, u_int flags, busdma_md_t *out_p);
int busdma_mem_free(busdma_md_t md);
int busdma_md_create(busdma_tag_t tag, u_int flags, busdma_md_t *out_p);
int busdma_md_destroy(busdma_md_t md);
int busdma_md_load(busdma_md_t md, void *buf, size_t len, u_int flags);
int busdma_md_unload(busdma_md_t md);
#define BUSDMA_MD_BUS_SPACE 0
#define BUSDMA_MD_PHYS_SPACE 1
#define BUSDMA_MD_VIRT_SPACE 2
int busdma_md_first_seg(busdma_md_t, int space);
int busdma_md_next_seg(busdma_md_t, busdma_seg_t seg);
bus_addr_t busdma_seg_get_addr(busdma_seg_t seg);
bus_size_t busdma_seg_get_size(busdma_seg_t seg);
#define BUSDMA_SYNC_PREREAD 1
#define BUSDMA_SYNC_POSTREAD 2
#define BUSDMA_SYNC_PREWRITE 4
#define BUSDMA_SYNC_POSTWRITE 8
int busdma_sync(busdma_md_t md, int op, bus_addr_t, bus_size_t);
#endif /* _LIBBUS_SPACE_H_ */
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