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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
/*
lib/get.c
functions to return information about comedi devices
COMEDILIB - Linux Control and Measurement Device Interface Library
Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
This library 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, version 2.1
of the License.
This library 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 library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
*/
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <string.h>
#include "libinternal.h"
EXPORT_ALIAS_DEFAULT(_comedi_get_n_subdevices,comedi_get_n_subdevices,0.7.18);
int _comedi_get_n_subdevices(comedi_t *it)
{
if(!valid_dev(it))
return -1;
return it->n_subdevices;
}
EXPORT_ALIAS_DEFAULT(_comedi_get_version_code,comedi_get_version_code,0.7.18);
int _comedi_get_version_code(comedi_t *it)
{
if(!valid_dev(it))
return -1;
return it->devinfo.version_code;
}
EXPORT_ALIAS_DEFAULT(_comedi_get_driver_name,comedi_get_driver_name,0.7.18);
const char* _comedi_get_driver_name(comedi_t *it)
{
if(!valid_dev(it))
return NULL;
return it->devinfo.driver_name;
}
EXPORT_ALIAS_DEFAULT(_comedi_get_board_name,comedi_get_board_name,0.7.18);
const char* _comedi_get_board_name(comedi_t *it)
{
if(!valid_dev(it))
return NULL;
return it->devinfo.board_name;
}
EXPORT_ALIAS_VER(_comedi_get_subdevice_flags_old, comedi_get_subdevice_flags,0.7.18);
int _comedi_get_subdevice_flags_old(comedi_t *it,unsigned int subd)
{
if(!valid_subd(it,subd))
return 0;
return it->subdevices[subd].subd_flags;
}
EXPORT_ALIAS_DEFAULT(_comedi_get_subdevice_flags,comedi_get_subdevice_flags,0.8.0);
int _comedi_get_subdevice_flags(comedi_t *it,unsigned int subd)
{
comedi_subdinfo *s;
int flags;
int ret;
if(!valid_subd(it,subd))
return -1;
s = calloc(it->n_subdevices, sizeof(comedi_subdinfo));
if(s == NULL)
{
libc_error();
return -1;
}
ret = comedi_ioctl(it->fd, COMEDI_SUBDINFO, s);
if(ret < 0)
{
free(s);
return -1;
}
flags = s[subd].subd_flags;
free(s);
return flags;
}
EXPORT_ALIAS_DEFAULT(_comedi_get_subdevice_type,comedi_get_subdevice_type,0.7.18);
int _comedi_get_subdevice_type(comedi_t *it,unsigned int subd)
{
if(!valid_subd(it,subd))
return -1;
return it->subdevices[subd].type;
}
EXPORT_ALIAS_DEFAULT(_comedi_find_subdevice_by_type,comedi_find_subdevice_by_type,0.7.18);
int _comedi_find_subdevice_by_type(comedi_t *it,int type,unsigned int subd)
{
if(!valid_subd(it,subd))
return -1;
for(;subd<it->n_subdevices;subd++){
if(it->subdevices[subd].type==type)
return subd;
}
return -1;
}
EXPORT_ALIAS_DEFAULT(_comedi_get_read_subdevice,comedi_get_read_subdevice,0.7.19);
int _comedi_get_read_subdevice(comedi_t *dev)
{
if(!valid_dev(dev))
return -1;
return dev->devinfo.read_subdevice;
}
EXPORT_ALIAS_DEFAULT(_comedi_get_write_subdevice,comedi_get_write_subdevice,0.7.19);
int _comedi_get_write_subdevice(comedi_t *dev)
{
if(!valid_dev(dev))
return -1;
return dev->devinfo.write_subdevice;
}
EXPORT_ALIAS_DEFAULT(_comedi_get_n_channels,comedi_get_n_channels,0.7.18);
int _comedi_get_n_channels(comedi_t *it,unsigned int subd)
{
if(!valid_subd(it,subd))
return -1;
return it->subdevices[subd].n_chan;
}
/* */
EXPORT_ALIAS_DEFAULT(_comedi_get_maxdata,comedi_get_maxdata,0.7.18);
lsampl_t _comedi_get_maxdata(comedi_t *it,unsigned int subdevice,unsigned int chan)
{
if(!valid_chan(it,subdevice,chan))
return 0;
if(it->subdevices[subdevice].maxdata_list)
return it->subdevices[subdevice].maxdata_list[chan];
return it->subdevices[subdevice].maxdata;
}
EXPORT_ALIAS_DEFAULT(_comedi_maxdata_is_chan_specific,comedi_maxdata_is_chan_specific,0.7.18);
int _comedi_maxdata_is_chan_specific(comedi_t *it,unsigned int subdevice)
{
if(!valid_subd(it,subdevice))
return -1;
if(it->subdevices[subdevice].maxdata_list)
return 1;
return 0;
}
EXPORT_ALIAS_DEFAULT(_comedi_get_rangetype,comedi_get_rangetype,0.7.18);
int _comedi_get_rangetype(comedi_t *it,unsigned int subdevice,unsigned int chan)
{
if(!valid_chan(it,subdevice,chan))
return -1;
if(it->subdevices[subdevice].range_type_list)
return it->subdevices[subdevice].range_type_list[chan];
return it->subdevices[subdevice].range_type;
}
EXPORT_ALIAS_DEFAULT(_comedi_get_range,comedi_get_range,0.7.18);
comedi_range * _comedi_get_range(comedi_t *it,unsigned int subdevice,unsigned int chan,unsigned int range)
{
int range_type;
if(!valid_chan(it,subdevice,chan))
return NULL;
range_type=comedi_get_rangetype(it,subdevice,chan);
if(range>=RANGE_LENGTH(range_type))
return NULL;
if(it->subdevices[subdevice].rangeinfo_list)
return it->subdevices[subdevice].rangeinfo_list[chan]+range;
return it->subdevices[subdevice].rangeinfo+range;
}
|
