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hameg-hmo: Add RTB2000 and RTM3000 MSO support (untested).
[libsigrok.git] / src / hardware / hameg-hmo / protocol.c
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2013 poljar (Damir Jelić) <poljarinho@gmail.com>
5 * Copyright (C) 2018 Guido Trentalancia <guido@trentalancia.com>
6 *
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21#include <config.h>
22#include <math.h>
23#include <stdlib.h>
24#include "scpi.h"
25#include "protocol.h"
26
27SR_PRIV void hmo_queue_logic_data(struct dev_context *devc,
28 size_t group, GByteArray *pod_data);
29SR_PRIV void hmo_send_logic_packet(struct sr_dev_inst *sdi,
30 struct dev_context *devc);
31SR_PRIV void hmo_cleanup_logic_data(struct dev_context *devc);
32
33static const char *hameg_scpi_dialect[] = {
34 [SCPI_CMD_GET_DIG_DATA] = ":FORM UINT,8;:POD%d:DATA?",
35 [SCPI_CMD_GET_TIMEBASE] = ":TIM:SCAL?",
36 [SCPI_CMD_SET_TIMEBASE] = ":TIM:SCAL %s",
37 [SCPI_CMD_GET_COUPLING] = ":CHAN%d:COUP?",
38 [SCPI_CMD_SET_COUPLING] = ":CHAN%d:COUP %s",
39 [SCPI_CMD_GET_SAMPLE_RATE] = ":ACQ:SRAT?",
40 [SCPI_CMD_GET_ANALOG_DATA] = ":FORM:BORD %s;" \
41 ":FORM REAL,32;:CHAN%d:DATA?",
42 [SCPI_CMD_GET_VERTICAL_DIV] = ":CHAN%d:SCAL?",
43 [SCPI_CMD_SET_VERTICAL_DIV] = ":CHAN%d:SCAL %s",
44 [SCPI_CMD_GET_DIG_POD_STATE] = ":POD%d:STAT?",
45 [SCPI_CMD_SET_DIG_POD_STATE] = ":POD%d:STAT %d",
46 [SCPI_CMD_GET_TRIGGER_SLOPE] = ":TRIG:A:EDGE:SLOP?",
47 [SCPI_CMD_SET_TRIGGER_SLOPE] = ":TRIG:A:TYPE EDGE;:TRIG:A:EDGE:SLOP %s",
48 [SCPI_CMD_GET_TRIGGER_PATTERN] = ":TRIG:A:PATT:SOUR?",
49 [SCPI_CMD_SET_TRIGGER_PATTERN] = ":TRIG:A:TYPE LOGIC;" \
50 ":TRIG:A:PATT:FUNC AND;" \
51 ":TRIG:A:PATT:COND TRUE;" \
52 ":TRIG:A:PATT:MODE OFF;" \
53 ":TRIG:A:PATT:SOUR \"%s\"",
54 [SCPI_CMD_GET_TRIGGER_SOURCE] = ":TRIG:A:SOUR?",
55 [SCPI_CMD_SET_TRIGGER_SOURCE] = ":TRIG:A:SOUR %s",
56 [SCPI_CMD_GET_DIG_CHAN_STATE] = ":LOG%d:STAT?",
57 [SCPI_CMD_SET_DIG_CHAN_STATE] = ":LOG%d:STAT %d",
58 [SCPI_CMD_GET_VERTICAL_OFFSET] = ":CHAN%d:POS?",
59 [SCPI_CMD_GET_HORIZ_TRIGGERPOS] = ":TIM:POS?",
60 [SCPI_CMD_SET_HORIZ_TRIGGERPOS] = ":TIM:POS %s",
61 [SCPI_CMD_GET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT?",
62 [SCPI_CMD_SET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT %d",
63 [SCPI_CMD_GET_PROBE_UNIT] = ":PROB%d:SET:ATT:UNIT?",
64 [SCPI_CMD_GET_DIG_POD_THRESHOLD] = ":POD%d:THR?",
65 [SCPI_CMD_SET_DIG_POD_THRESHOLD] = ":POD%d:THR %s",
66 [SCPI_CMD_GET_DIG_POD_USER_THRESHOLD] = ":POD%d:THR:UDL%d?",
67 [SCPI_CMD_SET_DIG_POD_USER_THRESHOLD] = ":POD%d:THR:UDL%d %s",
68};
69
70static const char *rohde_schwarz_log_not_pod_scpi_dialect[] = {
71 [SCPI_CMD_GET_DIG_DATA] = ":FORM UINT,8;:LOG%d:DATA?",
72 [SCPI_CMD_GET_TIMEBASE] = ":TIM:SCAL?",
73 [SCPI_CMD_SET_TIMEBASE] = ":TIM:SCAL %s",
74 [SCPI_CMD_GET_COUPLING] = ":CHAN%d:COUP?",
75 [SCPI_CMD_SET_COUPLING] = ":CHAN%d:COUP %s",
76 [SCPI_CMD_GET_SAMPLE_RATE] = ":ACQ:SRAT?",
77 [SCPI_CMD_GET_ANALOG_DATA] = ":FORM:BORD %s;" \
78 ":FORM REAL,32;:CHAN%d:DATA?",
79 [SCPI_CMD_GET_VERTICAL_DIV] = ":CHAN%d:SCAL?",
80 [SCPI_CMD_SET_VERTICAL_DIV] = ":CHAN%d:SCAL %s",
81 [SCPI_CMD_GET_DIG_POD_STATE] = ":LOG%d:STAT?",
82 [SCPI_CMD_SET_DIG_POD_STATE] = ":LOG%d:STAT %d",
83 [SCPI_CMD_GET_TRIGGER_SLOPE] = ":TRIG:A:EDGE:SLOP?",
84 [SCPI_CMD_SET_TRIGGER_SLOPE] = ":TRIG:A:TYPE EDGE;:TRIG:A:EDGE:SLOP %s",
85 [SCPI_CMD_GET_TRIGGER_PATTERN] = ":TRIG:A:PATT:SOUR?",
86 [SCPI_CMD_SET_TRIGGER_PATTERN] = ":TRIG:A:TYPE LOGIC;" \
87 ":TRIG:A:PATT:FUNC AND;" \
88 ":TRIG:A:PATT:COND TRUE;" \
89 ":TRIG:A:PATT:MODE OFF;" \
90 ":TRIG:A:PATT:SOUR \"%s\"",
91 [SCPI_CMD_GET_TRIGGER_SOURCE] = ":TRIG:A:SOUR?",
92 [SCPI_CMD_SET_TRIGGER_SOURCE] = ":TRIG:A:SOUR %s",
93 [SCPI_CMD_GET_DIG_CHAN_STATE] = ":LOG%d:STAT?",
94 [SCPI_CMD_SET_DIG_CHAN_STATE] = ":LOG%d:STAT %d",
95 [SCPI_CMD_GET_VERTICAL_OFFSET] = ":CHAN%d:POS?", /* Might not be supported on RTB200x... */
96 [SCPI_CMD_GET_HORIZ_TRIGGERPOS] = ":TIM:POS?",
97 [SCPI_CMD_SET_HORIZ_TRIGGERPOS] = ":TIM:POS %s",
98 [SCPI_CMD_GET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT?",
99 [SCPI_CMD_SET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT %d",
100 [SCPI_CMD_GET_PROBE_UNIT] = ":PROB%d:SET:ATT:UNIT?",
101 [SCPI_CMD_GET_DIG_POD_THRESHOLD] = ":DIG%d:TECH?",
102 [SCPI_CMD_SET_DIG_POD_THRESHOLD] = ":DIG%d:TECH %s",
103 [SCPI_CMD_GET_DIG_POD_USER_THRESHOLD] = ":DIG%d:THR?",
104 [SCPI_CMD_SET_DIG_POD_USER_THRESHOLD] = ":DIG%d:THR %s",
105};
106
107static const uint32_t devopts[] = {
108 SR_CONF_OSCILLOSCOPE,
109 SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
110 SR_CONF_LIMIT_FRAMES | SR_CONF_SET,
111 SR_CONF_SAMPLERATE | SR_CONF_GET,
112 SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
113 SR_CONF_NUM_HDIV | SR_CONF_GET,
114 SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET,
115 SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
116 SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
117 SR_CONF_TRIGGER_PATTERN | SR_CONF_GET | SR_CONF_SET,
118};
119
120static const uint32_t devopts_cg_analog[] = {
121 SR_CONF_NUM_VDIV | SR_CONF_GET,
122 SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
123 SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
124};
125
126static const uint32_t devopts_cg_digital[] = {
127 SR_CONF_LOGIC_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
128 SR_CONF_LOGIC_THRESHOLD_CUSTOM | SR_CONF_GET | SR_CONF_SET,
129};
130
131static const char *coupling_options[] = {
132 "AC", // AC with 50 Ohm termination (152x, 202x, 30xx, 1202)
133 "ACL", // AC with 1 MOhm termination
134 "DC", // DC with 50 Ohm termination
135 "DCL", // DC with 1 MOhm termination
136 "GND",
137};
138
139static const char *coupling_options_rtb200x[] = {
140 "ACL", // AC with 1 MOhm termination
141 "DCL", // DC with 1 MOhm termination
142 "GND",
143};
144
145static const char *coupling_options_rtm300x[] = {
146 "ACL", // AC with 1 MOhm termination
147 "DC", // DC with 50 Ohm termination
148 "DCL", // DC with 1 MOhm termination
149 "GND",
150};
151
152static const char *scope_trigger_slopes[] = {
153 "POS",
154 "NEG",
155 "EITH",
156};
157
158/* Predefined logic thresholds. */
159static const char *logic_threshold[] = {
160 "TTL",
161 "ECL",
162 "CMOS",
163 "USER1",
164 "USER2", // overwritten by logic_threshold_custom, use USER1 for permanent setting
165};
166
167static const char *logic_threshold_rtb200x_rtm300x[] = {
168 "TTL",
169 "ECL",
170 "CMOS",
171 "MAN", // overwritten by logic_threshold_custom
172};
173
174/* RTC1002, HMO Compact2 and HMO1002/HMO1202 */
175static const char *an2_dig8_trigger_sources[] = {
176 "CH1", "CH2",
177 "LINE", "EXT", "PATT", "BUS1", "BUS2",
178 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
179};
180
181/* HMO3xx2 */
182static const char *an2_dig16_trigger_sources[] = {
183 "CH1", "CH2",
184 "LINE", "EXT", "PATT", "BUS1", "BUS2",
185 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
186 "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
187};
188
189/* RTB2002 and RTM3002 */
190static const char *an2_dig16_sbus_trigger_sources[] = {
191 "CH1", "CH2",
192 "LINE", "EXT", "PATT", "SBUS1", "SBUS2",
193 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
194 "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
195};
196
197/* HMO Compact4 */
198static const char *an4_dig8_trigger_sources[] = {
199 "CH1", "CH2", "CH3", "CH4",
200 "LINE", "EXT", "PATT", "BUS1", "BUS2",
201 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
202};
203
204/* HMO3xx4 and HMO2524 */
205static const char *an4_dig16_trigger_sources[] = {
206 "CH1", "CH2", "CH3", "CH4",
207 "LINE", "EXT", "PATT", "BUS1", "BUS2",
208 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
209 "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
210};
211
212/* RTB2004 and RTM3004 */
213static const char *an4_dig16_sbus_trigger_sources[] = {
214 "CH1", "CH2", "CH3", "CH4",
215 "LINE", "EXT", "PATT", "SBUS1", "SBUS2",
216 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
217 "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
218};
219
220static const uint64_t timebases[][2] = {
221 /* nanoseconds */
222 { 2, 1000000000 },
223 { 5, 1000000000 },
224 { 10, 1000000000 },
225 { 20, 1000000000 },
226 { 50, 1000000000 },
227 { 100, 1000000000 },
228 { 200, 1000000000 },
229 { 500, 1000000000 },
230 /* microseconds */
231 { 1, 1000000 },
232 { 2, 1000000 },
233 { 5, 1000000 },
234 { 10, 1000000 },
235 { 20, 1000000 },
236 { 50, 1000000 },
237 { 100, 1000000 },
238 { 200, 1000000 },
239 { 500, 1000000 },
240 /* milliseconds */
241 { 1, 1000 },
242 { 2, 1000 },
243 { 5, 1000 },
244 { 10, 1000 },
245 { 20, 1000 },
246 { 50, 1000 },
247 { 100, 1000 },
248 { 200, 1000 },
249 { 500, 1000 },
250 /* seconds */
251 { 1, 1 },
252 { 2, 1 },
253 { 5, 1 },
254 { 10, 1 },
255 { 20, 1 },
256 { 50, 1 },
257};
258
259static const uint64_t vdivs[][2] = {
260 /* millivolts */
261 { 1, 1000 },
262 { 2, 1000 },
263 { 5, 1000 },
264 { 10, 1000 },
265 { 20, 1000 },
266 { 50, 1000 },
267 { 100, 1000 },
268 { 200, 1000 },
269 { 500, 1000 },
270 /* volts */
271 { 1, 1 },
272 { 2, 1 },
273 { 5, 1 },
274 { 10, 1 },
275};
276
277static const char *scope_analog_channel_names[] = {
278 "CH1", "CH2", "CH3", "CH4",
279};
280
281static const char *scope_digital_channel_names[] = {
282 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
283 "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
284};
285
286static const struct scope_config scope_models[] = {
287 {
288 /* RTC1002 and HMO722/1002/1022/1202/1522/2022 support only 8 digital channels. */
289 .name = {"RTC1002", "HMO722", "HMO1002", "HMO1022", "HMO1202", "HMO1522", "HMO2022", NULL},
290 .analog_channels = 2,
291 .digital_channels = 8,
292 .digital_pods = 1,
293
294 .analog_names = &scope_analog_channel_names,
295 .digital_names = &scope_digital_channel_names,
296
297 .devopts = &devopts,
298 .num_devopts = ARRAY_SIZE(devopts),
299
300 .devopts_cg_analog = &devopts_cg_analog,
301 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
302
303 .devopts_cg_digital = &devopts_cg_digital,
304 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
305
306 .coupling_options = &coupling_options,
307 .num_coupling_options = ARRAY_SIZE(coupling_options),
308
309 .logic_threshold = &logic_threshold,
310 .num_logic_threshold = ARRAY_SIZE(logic_threshold),
311 .logic_threshold_for_pod = TRUE,
312
313 .trigger_sources = &an2_dig8_trigger_sources,
314 .num_trigger_sources = ARRAY_SIZE(an2_dig8_trigger_sources),
315
316 .trigger_slopes = &scope_trigger_slopes,
317 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
318
319 .timebases = &timebases,
320 .num_timebases = ARRAY_SIZE(timebases),
321
322 .vdivs = &vdivs,
323 .num_vdivs = ARRAY_SIZE(vdivs),
324
325 .num_xdivs = 12,
326 .num_ydivs = 8,
327
328 .scpi_dialect = &hameg_scpi_dialect,
329 },
330 {
331 /* HMO3032/3042/3052/3522 support 16 digital channels. */
332 .name = {"HMO3032", "HMO3042", "HMO3052", "HMO3522", NULL},
333 .analog_channels = 2,
334 .digital_channels = 16,
335 .digital_pods = 2,
336
337 .analog_names = &scope_analog_channel_names,
338 .digital_names = &scope_digital_channel_names,
339
340 .devopts = &devopts,
341 .num_devopts = ARRAY_SIZE(devopts),
342
343 .devopts_cg_analog = &devopts_cg_analog,
344 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
345
346 .devopts_cg_digital = &devopts_cg_digital,
347 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
348
349 .coupling_options = &coupling_options,
350 .num_coupling_options = ARRAY_SIZE(coupling_options),
351
352 .logic_threshold = &logic_threshold,
353 .num_logic_threshold = ARRAY_SIZE(logic_threshold),
354 .logic_threshold_for_pod = TRUE,
355
356 .trigger_sources = &an2_dig16_trigger_sources,
357 .num_trigger_sources = ARRAY_SIZE(an2_dig16_trigger_sources),
358
359 .trigger_slopes = &scope_trigger_slopes,
360 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
361
362 .timebases = &timebases,
363 .num_timebases = ARRAY_SIZE(timebases),
364
365 .vdivs = &vdivs,
366 .num_vdivs = ARRAY_SIZE(vdivs),
367
368 .num_xdivs = 12,
369 .num_ydivs = 8,
370
371 .scpi_dialect = &hameg_scpi_dialect,
372 },
373 {
374 .name = {"HMO724", "HMO1024", "HMO1524", "HMO2024", NULL},
375 .analog_channels = 4,
376 .digital_channels = 8,
377 .digital_pods = 1,
378
379 .analog_names = &scope_analog_channel_names,
380 .digital_names = &scope_digital_channel_names,
381
382 .devopts = &devopts,
383 .num_devopts = ARRAY_SIZE(devopts),
384
385 .devopts_cg_analog = &devopts_cg_analog,
386 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
387
388 .devopts_cg_digital = &devopts_cg_digital,
389 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
390
391 .coupling_options = &coupling_options,
392 .num_coupling_options = ARRAY_SIZE(coupling_options),
393
394 .logic_threshold = &logic_threshold,
395 .num_logic_threshold = ARRAY_SIZE(logic_threshold),
396 .logic_threshold_for_pod = TRUE,
397
398 .trigger_sources = &an4_dig8_trigger_sources,
399 .num_trigger_sources = ARRAY_SIZE(an4_dig8_trigger_sources),
400
401 .trigger_slopes = &scope_trigger_slopes,
402 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
403
404 .timebases = &timebases,
405 .num_timebases = ARRAY_SIZE(timebases),
406
407 .vdivs = &vdivs,
408 .num_vdivs = ARRAY_SIZE(vdivs),
409
410 .num_xdivs = 12,
411 .num_ydivs = 8,
412
413 .scpi_dialect = &hameg_scpi_dialect,
414 },
415 {
416 .name = {"HMO2524", "HMO3034", "HMO3044", "HMO3054", "HMO3524", NULL},
417 .analog_channels = 4,
418 .digital_channels = 16,
419 .digital_pods = 2,
420
421 .analog_names = &scope_analog_channel_names,
422 .digital_names = &scope_digital_channel_names,
423
424 .devopts = &devopts,
425 .num_devopts = ARRAY_SIZE(devopts),
426
427 .devopts_cg_analog = &devopts_cg_analog,
428 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
429
430 .devopts_cg_digital = &devopts_cg_digital,
431 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
432
433 .coupling_options = &coupling_options,
434 .num_coupling_options = ARRAY_SIZE(coupling_options),
435
436 .logic_threshold = &logic_threshold,
437 .num_logic_threshold = ARRAY_SIZE(logic_threshold),
438 .logic_threshold_for_pod = TRUE,
439
440 .trigger_sources = &an4_dig16_trigger_sources,
441 .num_trigger_sources = ARRAY_SIZE(an4_dig16_trigger_sources),
442
443 .trigger_slopes = &scope_trigger_slopes,
444 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
445
446 .timebases = &timebases,
447 .num_timebases = ARRAY_SIZE(timebases),
448
449 .vdivs = &vdivs,
450 .num_vdivs = ARRAY_SIZE(vdivs),
451
452 .num_xdivs = 12,
453 .num_ydivs = 8,
454
455 .scpi_dialect = &hameg_scpi_dialect,
456 },
457 {
458 .name = {"RTB2002", NULL},
459 .analog_channels = 2,
460 .digital_channels = 16,
461 .digital_pods = 2,
462
463 .analog_names = &scope_analog_channel_names,
464 .digital_names = &scope_digital_channel_names,
465
466 .devopts = &devopts,
467 .num_devopts = ARRAY_SIZE(devopts),
468
469 .devopts_cg_analog = &devopts_cg_analog,
470 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
471
472 .devopts_cg_digital = &devopts_cg_digital,
473 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
474
475 .coupling_options = &coupling_options_rtb200x,
476 .num_coupling_options = ARRAY_SIZE(coupling_options_rtb200x),
477
478 .logic_threshold = &logic_threshold_rtb200x_rtm300x,
479 .num_logic_threshold = ARRAY_SIZE(logic_threshold_rtb200x_rtm300x),
480 .logic_threshold_for_pod = FALSE,
481
482 .trigger_sources = &an2_dig16_sbus_trigger_sources,
483 .num_trigger_sources = ARRAY_SIZE(an2_dig16_sbus_trigger_sources),
484
485 .trigger_slopes = &scope_trigger_slopes,
486 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
487
488 .timebases = &timebases,
489 .num_timebases = ARRAY_SIZE(timebases),
490
491 .vdivs = &vdivs,
492 .num_vdivs = ARRAY_SIZE(vdivs),
493
494 .num_xdivs = 12,
495 .num_ydivs = 8,
496
497 .scpi_dialect = &rohde_schwarz_log_not_pod_scpi_dialect,
498 },
499 {
500 .name = {"RTB2004", NULL},
501 .analog_channels = 4,
502 .digital_channels = 16,
503 .digital_pods = 2,
504
505 .analog_names = &scope_analog_channel_names,
506 .digital_names = &scope_digital_channel_names,
507
508 .devopts = &devopts,
509 .num_devopts = ARRAY_SIZE(devopts),
510
511 .devopts_cg_analog = &devopts_cg_analog,
512 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
513
514 .devopts_cg_digital = &devopts_cg_digital,
515 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
516
517 .coupling_options = &coupling_options_rtb200x,
518 .num_coupling_options = ARRAY_SIZE(coupling_options_rtb200x),
519
520 .logic_threshold = &logic_threshold_rtb200x_rtm300x,
521 .num_logic_threshold = ARRAY_SIZE(logic_threshold_rtb200x_rtm300x),
522 .logic_threshold_for_pod = FALSE,
523
524 .trigger_sources = &an4_dig16_sbus_trigger_sources,
525 .num_trigger_sources = ARRAY_SIZE(an4_dig16_sbus_trigger_sources),
526
527 .trigger_slopes = &scope_trigger_slopes,
528 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
529
530 .timebases = &timebases,
531 .num_timebases = ARRAY_SIZE(timebases),
532
533 .vdivs = &vdivs,
534 .num_vdivs = ARRAY_SIZE(vdivs),
535
536 .num_xdivs = 12,
537 .num_ydivs = 8,
538
539 .scpi_dialect = &rohde_schwarz_log_not_pod_scpi_dialect,
540 },
541 {
542 .name = {"RTM3002", NULL},
543 .analog_channels = 2,
544 .digital_channels = 16,
545 .digital_pods = 2,
546
547 .analog_names = &scope_analog_channel_names,
548 .digital_names = &scope_digital_channel_names,
549
550 .devopts = &devopts,
551 .num_devopts = ARRAY_SIZE(devopts),
552
553 .devopts_cg_analog = &devopts_cg_analog,
554 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
555
556 .devopts_cg_digital = &devopts_cg_digital,
557 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
558
559 .coupling_options = &coupling_options_rtm300x,
560 .num_coupling_options = ARRAY_SIZE(coupling_options_rtm300x),
561
562 .logic_threshold = &logic_threshold_rtb200x_rtm300x,
563 .num_logic_threshold = ARRAY_SIZE(logic_threshold_rtb200x_rtm300x),
564 .logic_threshold_for_pod = FALSE,
565
566 .trigger_sources = &an2_dig16_sbus_trigger_sources,
567 .num_trigger_sources = ARRAY_SIZE(an2_dig16_sbus_trigger_sources),
568
569 .trigger_slopes = &scope_trigger_slopes,
570 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
571
572 .timebases = &timebases,
573 .num_timebases = ARRAY_SIZE(timebases),
574
575 .vdivs = &vdivs,
576 .num_vdivs = ARRAY_SIZE(vdivs),
577
578 .num_xdivs = 12,
579 .num_ydivs = 8,
580
581 .scpi_dialect = &rohde_schwarz_log_not_pod_scpi_dialect,
582 },
583 {
584 .name = {"RTM3004", NULL},
585 .analog_channels = 4,
586 .digital_channels = 16,
587 .digital_pods = 2,
588
589 .analog_names = &scope_analog_channel_names,
590 .digital_names = &scope_digital_channel_names,
591
592 .devopts = &devopts,
593 .num_devopts = ARRAY_SIZE(devopts),
594
595 .devopts_cg_analog = &devopts_cg_analog,
596 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
597
598 .devopts_cg_digital = &devopts_cg_digital,
599 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
600
601 .coupling_options = &coupling_options_rtm300x,
602 .num_coupling_options = ARRAY_SIZE(coupling_options_rtm300x),
603
604 .logic_threshold = &logic_threshold_rtb200x_rtm300x,
605 .num_logic_threshold = ARRAY_SIZE(logic_threshold_rtb200x_rtm300x),
606 .logic_threshold_for_pod = FALSE,
607
608 .trigger_sources = &an4_dig16_sbus_trigger_sources,
609 .num_trigger_sources = ARRAY_SIZE(an4_dig16_sbus_trigger_sources),
610
611 .trigger_slopes = &scope_trigger_slopes,
612 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
613
614 .timebases = &timebases,
615 .num_timebases = ARRAY_SIZE(timebases),
616
617 .vdivs = &vdivs,
618 .num_vdivs = ARRAY_SIZE(vdivs),
619
620 .num_xdivs = 12,
621 .num_ydivs = 8,
622
623 .scpi_dialect = &rohde_schwarz_log_not_pod_scpi_dialect,
624 },
625};
626
627static void scope_state_dump(const struct scope_config *config,
628 struct scope_state *state)
629{
630 unsigned int i;
631 char *tmp;
632
633 for (i = 0; i < config->analog_channels; i++) {
634 tmp = sr_voltage_string((*config->vdivs)[state->analog_channels[i].vdiv][0],
635 (*config->vdivs)[state->analog_channels[i].vdiv][1]);
636 sr_info("State of analog channel %d -> %s : %s (coupling) %s (vdiv) %2.2e (offset)",
637 i + 1, state->analog_channels[i].state ? "On" : "Off",
638 (*config->coupling_options)[state->analog_channels[i].coupling],
639 tmp, state->analog_channels[i].vertical_offset);
640 }
641
642 for (i = 0; i < config->digital_channels; i++) {
643 sr_info("State of digital channel %d -> %s", i,
644 state->digital_channels[i] ? "On" : "Off");
645 }
646
647 for (i = 0; i < config->digital_pods; i++) {
648 if (!strncmp("USER", (*config->logic_threshold)[state->digital_pods[i].threshold], 4) ||
649 !strcmp("MAN", (*config->logic_threshold)[state->digital_pods[i].threshold]))
650 sr_info("State of digital POD %d -> %s : %E (threshold)", i + 1,
651 state->digital_pods[i].state ? "On" : "Off",
652 state->digital_pods[i].user_threshold);
653 else
654 sr_info("State of digital POD %d -> %s : %s (threshold)", i + 1,
655 state->digital_pods[i].state ? "On" : "Off",
656 (*config->logic_threshold)[state->digital_pods[i].threshold]);
657 }
658
659 tmp = sr_period_string((*config->timebases)[state->timebase][0],
660 (*config->timebases)[state->timebase][1]);
661 sr_info("Current timebase: %s", tmp);
662 g_free(tmp);
663
664 tmp = sr_samplerate_string(state->sample_rate);
665 sr_info("Current samplerate: %s", tmp);
666 g_free(tmp);
667
668 if (!strcmp("PATT", (*config->trigger_sources)[state->trigger_source]))
669 sr_info("Current trigger: %s (pattern), %.2f (offset)",
670 state->trigger_pattern,
671 state->horiz_triggerpos);
672 else // Edge (slope) trigger
673 sr_info("Current trigger: %s (source), %s (slope) %.2f (offset)",
674 (*config->trigger_sources)[state->trigger_source],
675 (*config->trigger_slopes)[state->trigger_slope],
676 state->horiz_triggerpos);
677}
678
679static int scope_state_get_array_option(struct sr_scpi_dev_inst *scpi,
680 const char *command, const char *(*array)[], unsigned int n, int *result)
681{
682 char *tmp;
683 int idx;
684
685 if (sr_scpi_get_string(scpi, command, &tmp) != SR_OK)
686 return SR_ERR;
687
688 if ((idx = std_str_idx_s(tmp, *array, n)) < 0) {
689 g_free(tmp);
690 return SR_ERR_ARG;
691 }
692
693 *result = idx;
694
695 g_free(tmp);
696
697 return SR_OK;
698}
699
700/**
701 * This function takes a value of the form "2.000E-03" and returns the index
702 * of an array where a matching pair was found.
703 *
704 * @param value The string to be parsed.
705 * @param array The array of s/f pairs.
706 * @param array_len The number of pairs in the array.
707 * @param result The index at which a matching pair was found.
708 *
709 * @return SR_ERR on any parsing error, SR_OK otherwise.
710 */
711static int array_float_get(gchar *value, const uint64_t array[][2],
712 int array_len, unsigned int *result)
713{
714 struct sr_rational rval;
715 struct sr_rational aval;
716
717 if (sr_parse_rational(value, &rval) != SR_OK)
718 return SR_ERR;
719
720 for (int i = 0; i < array_len; i++) {
721 sr_rational_set(&aval, array[i][0], array[i][1]);
722 if (sr_rational_eq(&rval, &aval)) {
723 *result = i;
724 return SR_OK;
725 }
726 }
727
728 return SR_ERR;
729}
730
731static struct sr_channel *get_channel_by_index_and_type(GSList *channel_lhead,
732 int index, int type)
733{
734 while (channel_lhead) {
735 struct sr_channel *ch = channel_lhead->data;
736 if (ch->index == index && ch->type == type)
737 return ch;
738
739 channel_lhead = channel_lhead->next;
740 }
741
742 return 0;
743}
744
745static int analog_channel_state_get(struct sr_dev_inst *sdi,
746 const struct scope_config *config,
747 struct scope_state *state)
748{
749 unsigned int i, j;
750 char command[MAX_COMMAND_SIZE];
751 char *tmp_str;
752 struct sr_channel *ch;
753 struct sr_scpi_dev_inst *scpi = sdi->conn;
754
755 for (i = 0; i < config->analog_channels; i++) {
756 g_snprintf(command, sizeof(command),
757 (*config->scpi_dialect)[SCPI_CMD_GET_ANALOG_CHAN_STATE],
758 i + 1);
759
760 if (sr_scpi_get_bool(scpi, command,
761 &state->analog_channels[i].state) != SR_OK)
762 return SR_ERR;
763
764 ch = get_channel_by_index_and_type(sdi->channels, i, SR_CHANNEL_ANALOG);
765 if (ch)
766 ch->enabled = state->analog_channels[i].state;
767
768 g_snprintf(command, sizeof(command),
769 (*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_DIV],
770 i + 1);
771
772 if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK)
773 return SR_ERR;
774
775 if (array_float_get(tmp_str, ARRAY_AND_SIZE(vdivs), &j) != SR_OK) {
776 g_free(tmp_str);
777 sr_err("Could not determine array index for vertical div scale.");
778 return SR_ERR;
779 }
780
781 g_free(tmp_str);
782 state->analog_channels[i].vdiv = j;
783
784 g_snprintf(command, sizeof(command),
785 (*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_OFFSET],
786 i + 1);
787
788 if (sr_scpi_get_float(scpi, command,
789 &state->analog_channels[i].vertical_offset) != SR_OK)
790 return SR_ERR;
791
792 g_snprintf(command, sizeof(command),
793 (*config->scpi_dialect)[SCPI_CMD_GET_COUPLING],
794 i + 1);
795
796 if (scope_state_get_array_option(scpi, command, config->coupling_options,
797 config->num_coupling_options,
798 &state->analog_channels[i].coupling) != SR_OK)
799 return SR_ERR;
800
801 g_snprintf(command, sizeof(command),
802 (*config->scpi_dialect)[SCPI_CMD_GET_PROBE_UNIT],
803 i + 1);
804
805 if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK)
806 return SR_ERR;
807
808 if (tmp_str[0] == 'A')
809 state->analog_channels[i].probe_unit = 'A';
810 else
811 state->analog_channels[i].probe_unit = 'V';
812 g_free(tmp_str);
813 }
814
815 return SR_OK;
816}
817
818static int digital_channel_state_get(struct sr_dev_inst *sdi,
819 const struct scope_config *config,
820 struct scope_state *state)
821{
822 unsigned int i, idx;
823 int result = SR_ERR;
824 static char *logic_threshold_short[] = {};
825 char command[MAX_COMMAND_SIZE];
826 struct sr_channel *ch;
827 struct sr_scpi_dev_inst *scpi = sdi->conn;
828
829 for (i = 0; i < config->digital_channels; i++) {
830 g_snprintf(command, sizeof(command),
831 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_CHAN_STATE],
832 i);
833
834 if (sr_scpi_get_bool(scpi, command,
835 &state->digital_channels[i]) != SR_OK)
836 return SR_ERR;
837
838 ch = get_channel_by_index_and_type(sdi->channels, i, SR_CHANNEL_LOGIC);
839 if (ch)
840 ch->enabled = state->digital_channels[i];
841 }
842
843 /* According to the SCPI standard, on models that support multiple
844 * user-defined logic threshold settings the response to the command
845 * SCPI_CMD_GET_DIG_POD_THRESHOLD might return "USER" instead of
846 * "USER1".
847 *
848 * This makes more difficult to validate the response when the logic
849 * threshold is set to "USER1" and therefore we need to prevent device
850 * opening failures in such configuration case...
851 */
852 for (i = 0; i < config->num_logic_threshold; i++) {
853 logic_threshold_short[i] = g_strdup((*config->logic_threshold)[i]);
854 if (!strcmp("USER1", (*config->logic_threshold)[i]))
855 g_strlcpy(logic_threshold_short[i],
856 (*config->logic_threshold)[i], strlen((*config->logic_threshold)[i]));
857 }
858
859 for (i = 0; i < config->digital_pods; i++) {
860 g_snprintf(command, sizeof(command),
861 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_STATE],
862 i + 1);
863
864 if (sr_scpi_get_bool(scpi, command,
865 &state->digital_pods[i].state) != SR_OK)
866 goto exit;
867
868 /* Check if the threshold command is based on the POD or digital channel index. */
869 if (config->logic_threshold_for_pod)
870 idx = i + 1;
871 else
872 idx = i * 8;
873
874 g_snprintf(command, sizeof(command),
875 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_THRESHOLD],
876 idx);
877
878 /* Check for both standard and shortened responses. */
879 if (scope_state_get_array_option(scpi, command, config->logic_threshold,
880 config->num_logic_threshold,
881 &state->digital_pods[i].threshold) != SR_OK)
882 if (scope_state_get_array_option(scpi, command, (const char * (*)[]) &logic_threshold_short,
883 config->num_logic_threshold,
884 &state->digital_pods[i].threshold) != SR_OK)
885 goto exit;
886
887 /* If used-defined or custom threshold is active, get the level. */
888 if (!strcmp("USER1", (*config->logic_threshold)[state->digital_pods[i].threshold]))
889 g_snprintf(command, sizeof(command),
890 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_USER_THRESHOLD],
891 idx, 1); /* USER1 logic threshold setting. */
892 else if (!strcmp("USER2", (*config->logic_threshold)[state->digital_pods[i].threshold]))
893 g_snprintf(command, sizeof(command),
894 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_USER_THRESHOLD],
895 idx, 2); /* USER2 for custom logic_threshold setting. */
896 else if (!strcmp("USER", (*config->logic_threshold)[state->digital_pods[i].threshold]) ||
897 !strcmp("MAN", (*config->logic_threshold)[state->digital_pods[i].threshold]))
898 g_snprintf(command, sizeof(command),
899 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_USER_THRESHOLD],
900 idx); /* USER or MAN for custom logic_threshold setting. */
901 if (!strcmp("USER1", (*config->logic_threshold)[state->digital_pods[i].threshold]) ||
902 !strcmp("USER2", (*config->logic_threshold)[state->digital_pods[i].threshold]) ||
903 !strcmp("USER", (*config->logic_threshold)[state->digital_pods[i].threshold]) ||
904 !strcmp("MAN", (*config->logic_threshold)[state->digital_pods[i].threshold]))
905 if (sr_scpi_get_float(scpi, command,
906 &state->digital_pods[i].user_threshold) != SR_OK)
907 goto exit;
908 }
909
910 result = SR_OK;
911
912exit:
913 for (i = 0; i < config->num_logic_threshold; i++)
914 g_free(logic_threshold_short[i]);
915
916 return result;
917}
918
919SR_PRIV int hmo_update_sample_rate(const struct sr_dev_inst *sdi)
920{
921 struct dev_context *devc;
922 struct scope_state *state;
923 const struct scope_config *config;
924 float tmp_float;
925
926 devc = sdi->priv;
927 config = devc->model_config;
928 state = devc->model_state;
929
930 if (sr_scpi_get_float(sdi->conn,
931 (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE],
932 &tmp_float) != SR_OK)
933 return SR_ERR;
934
935 state->sample_rate = tmp_float;
936
937 return SR_OK;
938}
939
940SR_PRIV int hmo_scope_state_get(struct sr_dev_inst *sdi)
941{
942 struct dev_context *devc;
943 struct scope_state *state;
944 const struct scope_config *config;
945 float tmp_float;
946 unsigned int i;
947 char *tmp_str;
948
949 devc = sdi->priv;
950 config = devc->model_config;
951 state = devc->model_state;
952
953 sr_info("Fetching scope state");
954
955 if (analog_channel_state_get(sdi, config, state) != SR_OK)
956 return SR_ERR;
957
958 if (digital_channel_state_get(sdi, config, state) != SR_OK)
959 return SR_ERR;
960
961 if (sr_scpi_get_float(sdi->conn,
962 (*config->scpi_dialect)[SCPI_CMD_GET_TIMEBASE],
963 &tmp_float) != SR_OK)
964 return SR_ERR;
965
966 if (sr_scpi_get_string(sdi->conn,
967 (*config->scpi_dialect)[SCPI_CMD_GET_TIMEBASE],
968 &tmp_str) != SR_OK)
969 return SR_ERR;
970
971 if (array_float_get(tmp_str, ARRAY_AND_SIZE(timebases), &i) != SR_OK) {
972 g_free(tmp_str);
973 sr_err("Could not determine array index for time base.");
974 return SR_ERR;
975 }
976 g_free(tmp_str);
977
978 state->timebase = i;
979
980 if (sr_scpi_get_float(sdi->conn,
981 (*config->scpi_dialect)[SCPI_CMD_GET_HORIZ_TRIGGERPOS],
982 &tmp_float) != SR_OK)
983 return SR_ERR;
984 state->horiz_triggerpos = tmp_float /
985 (((double) (*config->timebases)[state->timebase][0] /
986 (*config->timebases)[state->timebase][1]) * config->num_xdivs);
987 state->horiz_triggerpos -= 0.5;
988 state->horiz_triggerpos *= -1;
989
990 if (scope_state_get_array_option(sdi->conn,
991 (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SOURCE],
992 config->trigger_sources, config->num_trigger_sources,
993 &state->trigger_source) != SR_OK)
994 return SR_ERR;
995
996 if (scope_state_get_array_option(sdi->conn,
997 (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SLOPE],
998 config->trigger_slopes, config->num_trigger_slopes,
999 &state->trigger_slope) != SR_OK)
1000 return SR_ERR;
1001
1002 if (sr_scpi_get_string(sdi->conn,
1003 (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_PATTERN],
1004 &state->trigger_pattern) != SR_OK)
1005 return SR_ERR;
1006
1007 if (hmo_update_sample_rate(sdi) != SR_OK)
1008 return SR_ERR;
1009
1010 sr_info("Fetching finished.");
1011
1012 scope_state_dump(config, state);
1013
1014 return SR_OK;
1015}
1016
1017static struct scope_state *scope_state_new(const struct scope_config *config)
1018{
1019 struct scope_state *state;
1020
1021 state = g_malloc0(sizeof(struct scope_state));
1022 state->analog_channels = g_malloc0_n(config->analog_channels,
1023 sizeof(struct analog_channel_state));
1024 state->digital_channels = g_malloc0_n(
1025 config->digital_channels, sizeof(gboolean));
1026 state->digital_pods = g_malloc0_n(config->digital_pods,
1027 sizeof(struct digital_pod_state));
1028
1029 return state;
1030}
1031
1032SR_PRIV void hmo_scope_state_free(struct scope_state *state)
1033{
1034 g_free(state->analog_channels);
1035 g_free(state->digital_channels);
1036 g_free(state->digital_pods);
1037 g_free(state);
1038}
1039
1040SR_PRIV int hmo_init_device(struct sr_dev_inst *sdi)
1041{
1042 int model_index;
1043 unsigned int i, j, group;
1044 struct sr_channel *ch;
1045 struct dev_context *devc;
1046 int ret;
1047
1048 devc = sdi->priv;
1049 model_index = -1;
1050
1051 /* Find the exact model. */
1052 for (i = 0; i < ARRAY_SIZE(scope_models); i++) {
1053 for (j = 0; scope_models[i].name[j]; j++) {
1054 if (!strcmp(sdi->model, scope_models[i].name[j])) {
1055 model_index = i;
1056 break;
1057 }
1058 }
1059 if (model_index != -1)
1060 break;
1061 }
1062
1063 if (model_index == -1) {
1064 sr_dbg("Unsupported device.");
1065 return SR_ERR_NA;
1066 }
1067
1068 devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group*) *
1069 scope_models[model_index].analog_channels);
1070 devc->digital_groups = g_malloc0(sizeof(struct sr_channel_group*) *
1071 scope_models[model_index].digital_pods);
1072 if (!devc->analog_groups || !devc->digital_groups) {
1073 g_free(devc->analog_groups);
1074 g_free(devc->digital_groups);
1075 return SR_ERR_MALLOC;
1076 }
1077
1078 /* Add analog channels. */
1079 for (i = 0; i < scope_models[model_index].analog_channels; i++) {
1080 ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE,
1081 (*scope_models[model_index].analog_names)[i]);
1082
1083 devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
1084
1085 devc->analog_groups[i]->name = g_strdup(
1086 (char *)(*scope_models[model_index].analog_names)[i]);
1087 devc->analog_groups[i]->channels = g_slist_append(NULL, ch);
1088
1089 sdi->channel_groups = g_slist_append(sdi->channel_groups,
1090 devc->analog_groups[i]);
1091 }
1092
1093 /* Add digital channel groups. */
1094 ret = SR_OK;
1095 for (i = 0; i < scope_models[model_index].digital_pods; i++) {
1096 devc->digital_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
1097 if (!devc->digital_groups[i]) {
1098 ret = SR_ERR_MALLOC;
1099 break;
1100 }
1101 devc->digital_groups[i]->name = g_strdup_printf("POD%d", i + 1);
1102 sdi->channel_groups = g_slist_append(sdi->channel_groups,
1103 devc->digital_groups[i]);
1104 }
1105 if (ret != SR_OK)
1106 return ret;
1107
1108 /* Add digital channels. */
1109 for (i = 0; i < scope_models[model_index].digital_channels; i++) {
1110 ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
1111 (*scope_models[model_index].digital_names)[i]);
1112
1113 group = i / 8;
1114 devc->digital_groups[group]->channels = g_slist_append(
1115 devc->digital_groups[group]->channels, ch);
1116 }
1117
1118 devc->model_config = &scope_models[model_index];
1119 devc->samples_limit = 0;
1120 devc->frame_limit = 0;
1121
1122 if (!(devc->model_state = scope_state_new(devc->model_config)))
1123 return SR_ERR_MALLOC;
1124
1125 return SR_OK;
1126}
1127
1128/* Queue data of one channel group, for later submission. */
1129SR_PRIV void hmo_queue_logic_data(struct dev_context *devc,
1130 size_t group, GByteArray *pod_data)
1131{
1132 size_t size;
1133 GByteArray *store;
1134 uint8_t *logic_data;
1135 size_t idx, logic_step;
1136
1137 /*
1138 * Upon first invocation, allocate the array which can hold the
1139 * combined logic data for all channels. Assume that each channel
1140 * will yield an identical number of samples per receive call.
1141 *
1142 * As a poor man's safety measure: (Silently) skip processing
1143 * for unexpected sample counts, and ignore samples for
1144 * unexpected channel groups. Don't bother with complicated
1145 * resize logic, considering that many models only support one
1146 * pod, and the most capable supported models have two pods of
1147 * identical size. We haven't yet seen any "odd" configuration.
1148 */
1149 if (!devc->logic_data) {
1150 size = pod_data->len * devc->pod_count;
1151 store = g_byte_array_sized_new(size);
1152 memset(store->data, 0, size);
1153 store = g_byte_array_set_size(store, size);
1154 devc->logic_data = store;
1155 } else {
1156 store = devc->logic_data;
1157 size = store->len / devc->pod_count;
1158 if (group >= devc->pod_count)
1159 return;
1160 }
1161
1162 /*
1163 * Fold the data of the most recently received channel group into
1164 * the storage, where data resides for all channels combined.
1165 */
1166 logic_data = store->data;
1167 logic_data += group;
1168 logic_step = devc->pod_count;
1169 for (idx = 0; idx < pod_data->len; idx++) {
1170 *logic_data = pod_data->data[idx];
1171 logic_data += logic_step;
1172 }
1173
1174 /* Truncate acquisition if a smaller number of samples has been requested. */
1175 if (devc->samples_limit > 0 && devc->logic_data->len > devc->samples_limit * devc->pod_count)
1176 devc->logic_data->len = devc->samples_limit * devc->pod_count;
1177}
1178
1179/* Submit data for all channels, after the individual groups got collected. */
1180SR_PRIV void hmo_send_logic_packet(struct sr_dev_inst *sdi,
1181 struct dev_context *devc)
1182{
1183 struct sr_datafeed_packet packet;
1184 struct sr_datafeed_logic logic;
1185
1186 if (!devc->logic_data)
1187 return;
1188
1189 logic.data = devc->logic_data->data;
1190 logic.length = devc->logic_data->len;
1191 logic.unitsize = devc->pod_count;
1192
1193 packet.type = SR_DF_LOGIC;
1194 packet.payload = &logic;
1195
1196 sr_session_send(sdi, &packet);
1197}
1198
1199/* Undo previous resource allocation. */
1200SR_PRIV void hmo_cleanup_logic_data(struct dev_context *devc)
1201{
1202
1203 if (devc->logic_data) {
1204 g_byte_array_free(devc->logic_data, TRUE);
1205 devc->logic_data = NULL;
1206 }
1207 /*
1208 * Keep 'pod_count'! It's required when more frames will be
1209 * received, and does not harm when kept after acquisition.
1210 */
1211}
1212
1213SR_PRIV int hmo_receive_data(int fd, int revents, void *cb_data)
1214{
1215 struct sr_channel *ch;
1216 struct sr_dev_inst *sdi;
1217 struct dev_context *devc;
1218 struct scope_state *state;
1219 struct sr_datafeed_packet packet;
1220 GByteArray *data;
1221 struct sr_datafeed_analog analog;
1222 struct sr_analog_encoding encoding;
1223 struct sr_analog_meaning meaning;
1224 struct sr_analog_spec spec;
1225 struct sr_datafeed_logic logic;
1226 size_t group;
1227
1228 (void)fd;
1229 (void)revents;
1230
1231 data = NULL;
1232
1233 if (!(sdi = cb_data))
1234 return TRUE;
1235
1236 if (!(devc = sdi->priv))
1237 return TRUE;
1238
1239 /* Although this is correct in general, the USBTMC libusb implementation
1240 * currently does not generate an event prior to the first read. Often
1241 * it is ok to start reading just after the 50ms timeout. See bug #785.
1242 if (revents != G_IO_IN)
1243 return TRUE;
1244 */
1245
1246 ch = devc->current_channel->data;
1247 state = devc->model_state;
1248
1249 /*
1250 * Send "frame begin" packet upon reception of data for the
1251 * first enabled channel.
1252 */
1253 if (devc->current_channel == devc->enabled_channels) {
1254 packet.type = SR_DF_FRAME_BEGIN;
1255 sr_session_send(sdi, &packet);
1256 }
1257
1258 /*
1259 * Pass on the received data of the channel(s).
1260 */
1261 switch (ch->type) {
1262 case SR_CHANNEL_ANALOG:
1263 if (sr_scpi_get_block(sdi->conn, NULL, &data) != SR_OK) {
1264 if (data)
1265 g_byte_array_free(data, TRUE);
1266 return TRUE;
1267 }
1268
1269 packet.type = SR_DF_ANALOG;
1270
1271 analog.data = data->data;
1272 analog.num_samples = data->len / sizeof(float);
1273 /* Truncate acquisition if a smaller number of samples has been requested. */
1274 if (devc->samples_limit > 0 && analog.num_samples > devc->samples_limit)
1275 analog.num_samples = devc->samples_limit;
1276 analog.encoding = &encoding;
1277 analog.meaning = &meaning;
1278 analog.spec = &spec;
1279
1280 encoding.unitsize = sizeof(float);
1281 encoding.is_signed = TRUE;
1282 encoding.is_float = TRUE;
1283#ifdef WORDS_BIGENDIAN
1284 encoding.is_bigendian = TRUE;
1285#else
1286 encoding.is_bigendian = FALSE;
1287#endif
1288 /* TODO: Use proper 'digits' value for this device (and its modes). */
1289 encoding.digits = 2;
1290 encoding.is_digits_decimal = FALSE;
1291 encoding.scale.p = 1;
1292 encoding.scale.q = 1;
1293 encoding.offset.p = 0;
1294 encoding.offset.q = 1;
1295 if (state->analog_channels[ch->index].probe_unit == 'V') {
1296 meaning.mq = SR_MQ_VOLTAGE;
1297 meaning.unit = SR_UNIT_VOLT;
1298 } else {
1299 meaning.mq = SR_MQ_CURRENT;
1300 meaning.unit = SR_UNIT_AMPERE;
1301 }
1302 meaning.mqflags = 0;
1303 meaning.channels = g_slist_append(NULL, ch);
1304 /* TODO: Use proper 'digits' value for this device (and its modes). */
1305 spec.spec_digits = 2;
1306 packet.payload = &analog;
1307 sr_session_send(sdi, &packet);
1308 devc->num_samples = data->len / sizeof(float);
1309 g_slist_free(meaning.channels);
1310 g_byte_array_free(data, TRUE);
1311 data = NULL;
1312 break;
1313 case SR_CHANNEL_LOGIC:
1314 if (sr_scpi_get_block(sdi->conn, NULL, &data) != SR_OK) {
1315 if (data)
1316 g_byte_array_free(data, TRUE);
1317 return TRUE;
1318 }
1319
1320 /*
1321 * If only data from the first pod is involved in the
1322 * acquisition, then the raw input bytes can get passed
1323 * forward for performance reasons. When the second pod
1324 * is involved (either alone, or in combination with the
1325 * first pod), then the received bytes need to be put
1326 * into memory in such a layout that all channel groups
1327 * get combined, and a unitsize larger than a single byte
1328 * applies. The "queue" logic transparently copes with
1329 * any such configuration. This works around the lack
1330 * of support for "meaning" to logic data, which is used
1331 * above for analog data.
1332 */
1333 if (devc->pod_count == 1) {
1334 packet.type = SR_DF_LOGIC;
1335 logic.data = data->data;
1336 logic.length = data->len;
1337 /* Truncate acquisition if a smaller number of samples has been requested. */
1338 if (devc->samples_limit > 0 && logic.length > devc->samples_limit)
1339 logic.length = devc->samples_limit;
1340 logic.unitsize = 1;
1341 packet.payload = &logic;
1342 sr_session_send(sdi, &packet);
1343 } else {
1344 group = ch->index / 8;
1345 hmo_queue_logic_data(devc, group, data);
1346 }
1347
1348 devc->num_samples = data->len / devc->pod_count;
1349 g_byte_array_free(data, TRUE);
1350 data = NULL;
1351 break;
1352 default:
1353 sr_err("Invalid channel type.");
1354 break;
1355 }
1356
1357 /*
1358 * Advance to the next enabled channel. When data for all enabled
1359 * channels was received, then flush potentially queued logic data,
1360 * and send the "frame end" packet.
1361 */
1362 if (devc->current_channel->next) {
1363 devc->current_channel = devc->current_channel->next;
1364 hmo_request_data(sdi);
1365 return TRUE;
1366 }
1367 hmo_send_logic_packet(sdi, devc);
1368
1369 /*
1370 * Release the logic data storage after each frame. This copes
1371 * with sample counts that differ in length per frame. -- Is
1372 * this a real constraint when acquiring multiple frames with
1373 * identical device settings?
1374 */
1375 hmo_cleanup_logic_data(devc);
1376
1377 packet.type = SR_DF_FRAME_END;
1378 sr_session_send(sdi, &packet);
1379
1380 /*
1381 * End of frame was reached. Stop acquisition after the specified
1382 * number of frames or after the specified number of samples, or
1383 * continue reception by starting over at the first enabled channel.
1384 */
1385 if (++devc->num_frames >= devc->frame_limit || devc->num_samples >= devc->samples_limit) {
1386 sr_dev_acquisition_stop(sdi);
1387 hmo_cleanup_logic_data(devc);
1388 } else {
1389 devc->current_channel = devc->enabled_channels;
1390 hmo_request_data(sdi);
1391 }
1392
1393 return TRUE;
1394}
Hardware access and backend lib