1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/*-
* Copyright (c) 2014 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <errno.h>
#include "bus.h"
#include "busdma.h"
#include "libbus.h"
int16_t
bus_read_1(int rid, long ofs)
{
uint8_t val;
return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int)val);
}
int32_t
bus_read_2(int rid, long ofs)
{
uint16_t val;
return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int)val);
}
int64_t
bus_read_4(int rid, long ofs)
{
uint32_t val;
return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int64_t)val);
}
int
bus_write_1(int rid, long ofs, uint8_t val)
{
return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0);
}
int
bus_write_2(int rid, long ofs, uint16_t val)
{
return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0);
}
int
bus_write_4(int rid, long ofs, uint32_t val)
{
return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0);
}
int
bus_map(const char *dev)
{
return (bs_map(dev));
}
int
bus_unmap(int rid)
{
return ((!bs_unmap(rid)) ? errno : 0);
}
int
bus_subregion(int rid, long ofs, long sz)
{
return (bs_subregion(rid, ofs, sz));
}
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 res;
res = bd_tag_create(dev, align, bndry, maxaddr, maxsz, nsegs, maxsegsz,
datarate, flags);
if (res == -1)
return (errno);
*out_p = res;
return (0);
}
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 res;
res = bd_tag_derive(tag, align, bndry, maxaddr, maxsz, nsegs, maxsegsz,
datarate, flags);
if (res == -1)
return (errno);
*out_p = res;
return (0);
}
int
busdma_tag_destroy(busdma_tag_t tag)
{
return (bd_tag_destroy(tag));
}
int
busdma_mem_alloc(busdma_tag_t tag, u_int flags, busdma_md_t *out_p)
{
int res;
res = bd_mem_alloc(tag, flags);
if (res == -1)
return (errno);
*out_p = res;
return (0);
}
int
busdma_mem_free(busdma_md_t md)
{
return (bd_mem_free(md));
}
busdma_seg_t
busdma_md_first_seg(busdma_md_t md, int space)
{
busdma_seg_t seg;
seg = bd_md_first_seg(md, space);
return (seg);
}
busdma_seg_t
busdma_md_next_seg(busdma_md_t md, busdma_seg_t seg)
{
seg = bd_md_next_seg(md, seg);
return (seg);
}
bus_addr_t
busdma_seg_get_addr(busdma_seg_t seg)
{
u_long addr;
int error;
error = bd_seg_get_addr(seg, &addr);
return ((error) ? ~0UL : addr);
}
bus_size_t
busdma_seg_get_size(busdma_seg_t seg)
{
u_long size;
int error;
error = bd_seg_get_size(seg, &size);
return ((error) ? ~0UL : size);
}
|
