1/*-
2 * Copyright (c) 2014 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#include <sys/types.h>
28#include <errno.h>
29
30#include "bus.h"
31#include "busdma.h"
32#include "libbus.h"
33
34int16_t
35bus_read_1(int rid, long ofs)
36{
37	uint8_t val;
38
39	return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int)val);
40}
41
42int32_t
43bus_read_2(int rid, long ofs)
44{
45	uint16_t val;
46
47	return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int)val);
48}
49
50int64_t
51bus_read_4(int rid, long ofs)
52{
53	uint32_t val;
54
55	return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int64_t)val);
56}
57
58int
59bus_write_1(int rid, long ofs, uint8_t val)
60{
61
62	return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0);
63}
64
65int
66bus_write_2(int rid, long ofs, uint16_t val)
67{
68
69	return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0);
70}
71
72int
73bus_write_4(int rid, long ofs, uint32_t val)
74{
75
76	return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0);
77}
78
79int
80bus_map(const char *dev, const char *resource)
81{
82
83	return (bs_map(dev, resource));
84}
85
86int
87bus_unmap(int rid)
88{
89
90	return ((!bs_unmap(rid)) ? errno : 0);
91}
92
93int
94bus_subregion(int rid, long ofs, long sz)
95{
96
97	return (bs_subregion(rid, ofs, sz));
98}
99
100int
101busdma_tag_create(const char *dev, bus_addr_t align, bus_addr_t bndry,
102    bus_addr_t maxaddr, bus_size_t maxsz, u_int nsegs, bus_size_t maxsegsz,
103    u_int datarate, u_int flags, busdma_tag_t *out_p)
104{
105	int res;
106
107	res = bd_tag_create(dev, align, bndry, maxaddr, maxsz, nsegs, maxsegsz,
108	    datarate, flags);
109	if (res == -1)
110		return (errno);
111	*out_p = res;
112	return (0);
113}
114
115int
116busdma_tag_derive(busdma_tag_t tag, bus_addr_t align, bus_addr_t bndry,
117    bus_addr_t maxaddr, bus_size_t maxsz, u_int nsegs, bus_size_t maxsegsz,
118    u_int datarate, u_int flags, busdma_tag_t *out_p)
119{
120	int res;
121
122	res = bd_tag_derive(tag, align, bndry, maxaddr, maxsz, nsegs, maxsegsz,
123	    datarate, flags);
124	if (res == -1)
125		return (errno);
126	*out_p = res;
127	return (0);
128}
129
130int
131busdma_tag_destroy(busdma_tag_t tag)
132{
133
134	return (bd_tag_destroy(tag));
135}
136
137int
138busdma_mem_alloc(busdma_tag_t tag, u_int flags, busdma_md_t *out_p)
139{
140	int res;
141
142	res = bd_mem_alloc(tag, flags);
143	if (res == -1)
144		return (errno);
145	*out_p = res;
146	return (0);
147}
148
149int
150busdma_mem_free(busdma_md_t md)
151{
152
153	return (bd_mem_free(md));
154}
155
156int
157busdma_md_create(busdma_tag_t tag, u_int flags, busdma_md_t *out_p)
158{
159	int res;
160
161	res = bd_md_create(tag, flags);
162	if (res == -1)
163		return (errno);
164	*out_p = res;
165	return (0);
166}
167
168int
169busdma_md_destroy(busdma_md_t md)
170{
171
172	return (bd_md_destroy(md));
173}
174
175int
176busdma_md_load(busdma_md_t md, void *buf, size_t len, u_int flags)
177{
178
179	return (bd_md_load(md, buf, len, flags));
180}
181
182int
183busdma_md_unload(busdma_md_t md)
184{
185
186	return (bd_md_unload(md));
187}
188
189busdma_seg_t
190busdma_md_first_seg(busdma_md_t md, int space)
191{
192	busdma_seg_t seg;
193
194	seg = bd_md_first_seg(md, space);
195	return (seg);
196}
197
198busdma_seg_t
199busdma_md_next_seg(busdma_md_t md, busdma_seg_t seg)
200{
201
202	seg = bd_md_next_seg(md, seg);
203	return (seg);
204}
205
206bus_addr_t
207busdma_seg_get_addr(busdma_seg_t seg)
208{
209	u_long addr;
210	int error;
211
212	error = bd_seg_get_addr(seg, &addr);
213	return ((error) ? ~0UL : addr);
214}
215
216bus_size_t
217busdma_seg_get_size(busdma_seg_t seg)
218{
219	u_long size;
220	int error;
221
222	error = bd_seg_get_size(seg, &size);
223	return ((error) ? ~0UL : size);
224}
225
226int
227busdma_sync(busdma_md_t md, int op)
228{
229
230	return (bd_sync(md, op, 0UL, ~0UL));
231}
232
233int
234busdma_sync_range(busdma_md_t md, int op, bus_size_t ofs, bus_size_t len)
235{
236
237	return (bd_sync(md, op, ofs, len));
238}
239