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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
|
/***************************************************************************
lib/ibask.c
-------------------
copyright : (C) 2002 by Frank Mori Hess
email : fmhess@users.sourceforge.net
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "ib_internal.h"
int query_ist(const ibBoard_t *board)
{
int retval;
struct gpib_board_info_ioctl info;
retval = ioctl(board->fileno, IBBOARD_INFO, &info);
if (retval < 0) {
setIberr(EDVR);
setIbcnt(errno);
return retval;
}
return info.ist;
}
int query_ppc(const ibBoard_t *board)
{
int retval;
struct gpib_board_info_ioctl info;
retval = ioctl(board->fileno, IBBOARD_INFO, &info);
if (retval < 0) {
setIberr(EDVR);
setIbcnt(errno);
return retval;
}
return info.parallel_poll_configuration;
}
int query_local_ppoll_mode(const ibBoard_t *board)
{
int retval;
short local_mode;
retval = ioctl(board->fileno, IBPP2_GET, &local_mode);
if (retval < 0) {
setIberr(EDVR);
setIbcnt(errno);
return retval;
}
return local_mode;
}
int query_autopoll(const ibBoard_t *board)
{
int retval;
struct gpib_board_info_ioctl info;
retval = ioctl(board->fileno, IBBOARD_INFO, &info);
if (retval < 0) {
setIberr(EDVR);
setIbcnt(errno);
return retval;
}
return info.autopolling;
}
int query_board_t1_delay(const ibBoard_t *board)
{
int retval;
struct gpib_board_info_ioctl info;
retval = ioctl(board->fileno, IBBOARD_INFO, &info);
if (retval < 0) {
setIberr(EDVR);
setIbcnt(errno);
return retval;
}
if (info.t1_delay == 0) {
fprintf(stderr, "%s: bug! we don't know what the T1 delay is because it has never been set.\n",
__FUNCTION__);
return -EIO;
} else if (info.t1_delay < 500)
return T1_DELAY_350ns;
else if (info.t1_delay < 2000)
return T1_DELAY_500ns;
return T1_DELAY_2000ns;
}
int query_board_rsv(const ibBoard_t *board)
{
int retval;
int status;
retval = ioctl(board->fileno, IBQUERY_BOARD_RSV, &status);
if (retval < 0) {
setIberr(EDVR);
setIbcnt(errno);
return retval;
}
return status;
}
int query_pad(const ibBoard_t *board, unsigned int *pad)
{
int retval;
struct gpib_board_info_ioctl info;
retval = ioctl(board->fileno, IBBOARD_INFO, &info);
if (retval < 0) {
setIberr(EDVR);
setIbcnt(errno);
return retval;
}
*pad = info.pad;
return 0;
}
int query_sad(const ibBoard_t *board, int *sad)
{
int retval;
struct gpib_board_info_ioctl info;
retval = ioctl(board->fileno, IBBOARD_INFO, &info);
if (retval < 0) {
setIberr(EDVR);
setIbcnt(errno);
return retval;
}
*sad = info.sad;
return 0;
}
int query_no_7_bit_eos(const ibBoard_t *board)
{
int retval;
struct gpib_board_info_ioctl info;
retval = ioctl(board->fileno, IBBOARD_INFO, &info);
if (retval < 0) {
setIberr(EDVR);
setIbcnt(errno);
return retval;
}
return info.no_7_bit_eos;
}
int ibask(int ud, int option, int *value)
{
ibConf_t *conf;
ibBoard_t *board;
unsigned int pad;
int sad;
int retval;
conf = general_enter_library(ud, 0, 0);
if (!conf)
return exit_library(ud, 1);
board = interfaceBoard(conf);
switch (option) {
case IbaPAD:
if (conf->is_interface) {
retval = query_pad(board, &pad);
if (retval < 0)
return exit_library(ud, 1);
conf->settings.pad = pad;
}
*value = conf->settings.pad;
return exit_library(ud, 0);
break;
case IbaSAD:
if (conf->is_interface) {
retval = query_sad(board, &sad);
if (retval < 0)
return exit_library(ud, 1);
conf->settings.sad = sad;
}
if (conf->settings.sad < 0)
*value = 0;
else
*value = MSA(conf->settings.sad);
return exit_library(ud, 0);
break;
case IbaTMO:
*value = usec_to_timeout(conf->settings.usec_timeout);
return exit_library(ud, 0);
break;
case IbaEOT:
*value = conf->settings.send_eoi;
return exit_library(ud, 0);
break;
case IbaEOSrd:
*value = conf->settings.eos_flags & REOS;
return exit_library(ud, 0);
break;
case IbaEOSwrt:
*value = conf->settings.eos_flags & XEOS;
return exit_library(ud, 0);
break;
case IbaEOScmp:
*value = conf->settings.eos_flags & BIN;
return exit_library(ud, 0);
break;
case IbaEOSchar:
*value = conf->settings.eos;
return exit_library(ud, 0);
break;
case IbaBNA:
*value = conf->settings.board;
return exit_library(ud, 0);
break;
case IbaReadAdjust:
/* XXX I guess I could implement byte swapping stuff,
* it's pretty stupid though */
*value = 0;
return exit_library(ud, 0);
break;
case IbaWriteAdjust:
/* XXX I guess I could implement byte swapping stuff,
* it's pretty stupid though */
*value = 0;
return exit_library(ud, 0);
break;
case IbaEndBitIsNormal:
/* XXX no support for setting END status on EOI only yet */
*value = 1;
return exit_library(ud, 0);
break;
default:
break;
}
if (conf->is_interface) {
switch (option) {
case IbaPPC:
retval = query_ppc(board);
if (retval < 0)
return exit_library(ud, 1);
*value = retval;
return exit_library(ud, 0);
break;
case IbaAUTOPOLL:
retval = query_autopoll(board);
if (retval < 0)
return exit_library(ud, 1);
*value = retval;
return exit_library(ud, 0);
break;
case IbaCICPROT:
// XXX we don't support pass control protocol yet
*value = 0;
return exit_library(ud, 0);
break;
case IbaIRQ:
// XXX we don't support interrupt-less operation yet
*value = 0;
return exit_library(ud, 0);
break;
case IbaSC:
retval = is_system_controller(board);
if (retval < 0)
return exit_library(ud, 1);
*value = retval;
return exit_library(ud, 0);
break;
case IbaSRE:
*value = board->set_ren_on_sc;
return exit_library(ud, 0);
break;
case IbaPP2:
retval = query_local_ppoll_mode(board);
if (retval < 0) {
return exit_library(ud, 1);
} else {
*value = retval;
return exit_library(ud, 0);
}
break;
case IbaTIMING:
retval = query_board_t1_delay(board);
if (retval < 0)
return exit_library(ud, 1);
*value = retval;
return exit_library(ud, 0);
break;
case IbaDMA:
// XXX bogus, but pretty unimportant
*value = board->dma;
return exit_library(ud, 0);
break;
case IbaEventQueue:
*value = board->use_event_queue;
return exit_library(ud, 0);
break;
case IbaSPollBit:
*value = 1;
return exit_library(ud, 0);
break;
case IbaSendLLO:
*value = conf->settings.local_lockout;
return exit_library(ud, 0);
break;
case IbaPPollTime:
*value = usec_to_ppoll_timeout(conf->settings.ppoll_usec_timeout);
return exit_library(ud, 0);
break;
case IbaHSCableLength:
/* HS transfer not supported and may never
* be as it is not part of GPIB standard */
*value = 0;
return exit_library(ud, 0);
break;
case IbaIst:
retval = query_ist(board);
if (retval < 0)
return exit_library(ud, 1);
*value = retval;
return exit_library(ud, 0);
break;
case IbaRsv:
retval = query_board_rsv(board);
if (retval < 0)
return exit_library(ud, 1);
*value = retval;
return exit_library(ud, 0);
break;
case Iba7BitEOS:
retval = query_no_7_bit_eos(board);
if (retval < 0)
return exit_library(ud, 1);
*value = !retval;
return exit_library(ud, 0);
break;
default:
break;
}
} else {
switch (option) {
case IbaREADDR:
*value = conf->settings.readdr;
return exit_library(ud, 0);
break;
case IbaSPollTime:
*value = usec_to_timeout(conf->settings.spoll_usec_timeout);
return exit_library(ud, 0);
break;
case IbaUnAddr:
*value = conf->settings.send_unt_unl;
return exit_library(ud, 0);
break;
default:
break;
}
}
setIberr(EARG);
return exit_library(ud, 1);
}
|
