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
|
/*
* libexplain - a library of system-call-specific strerror replacements
* Copyright (C) 2011 Peter Miller
* Written by Peter Miller <pmiller@opensource.org.au>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libexplain/ac/errno.h>
#include <libexplain/ac/linux/videodev2.h>
#include <libexplain/ac/sys/ioctl.h>
#include <libexplain/buffer/einval.h>
#include <libexplain/buffer/is_the_null_pointer.h>
#include <libexplain/buffer/v4l2_audioout.h>
#include <libexplain/iocontrol/generic.h>
#include <libexplain/iocontrol/vidioc_s_audout.h>
#include <libexplain/is_efault.h>
#ifdef VIDIOC_S_AUDOUT
static void
print_data(const explain_iocontrol_t *p, explain_string_buffer_t *sb,
int errnum, int fildes, int request, const void *data)
{
(void)p;
(void)errnum;
(void)fildes;
(void)request;
explain_buffer_v4l2_audioout(sb, data, 1);
}
static void
print_explanation(const explain_iocontrol_t *p, explain_string_buffer_t *sb,
int errnum, int fildes, int request, const void *data)
{
switch (errnum)
{
case EINVAL:
if (!data)
{
explain_buffer_is_the_null_pointer(sb, "data");
return;
}
{
const int *arg;
int naudouts;
arg = data;
if (explain_is_efault_pointer(arg, sizeof(*arg)))
goto generic;
naudouts = explain_v4l2_audioout_get_naudioouts(fildes);
if (naudouts == 0)
{
errnum = ENOTTY;
goto generic;
}
if (naudouts > 0)
{
if (*arg < 0 || *arg >= naudouts)
{
explain_buffer_einval_out_of_range
(
sb,
"*data",
0,
naudouts - 1
);
return;
}
}
}
generic:
explain_buffer_einval_vague(sb, "data");
break;
default:
explain_iocontrol_generic_print_explanation
(
p,
sb,
errnum,
fildes,
request,
data
);
break;
}
}
const explain_iocontrol_t explain_iocontrol_vidioc_s_audout =
{
"VIDIOC_S_AUDOUT", /* name */
VIDIOC_S_AUDOUT, /* value */
0, /* disambiguate */
0, /* print_name */
print_data,
print_explanation,
0, /* print_data_returned */
sizeof(struct v4l2_audioout), /* data_size */
"struct v4l2_audioout *", /* data_type */
0, /* flags */
__FILE__,
__LINE__,
};
#else /* ndef VIDIOC_S_AUDOUT */
const explain_iocontrol_t explain_iocontrol_vidioc_s_audout =
{
0, /* name */
0, /* value */
0, /* disambiguate */
0, /* print_name */
0, /* print_data */
0, /* print_explanation */
0, /* print_data_returned */
0, /* data_size */
0, /* data_type */
0, /* flags */
__FILE__,
__LINE__,
};
#endif /* VIDIOC_S_AUDOUT */
/* vim: set ts=8 sw=4 et : */
|
