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hameg-hmo: Get SCPI_CMD_GET_HORIZONTAL_DIV at runtime.
[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_HORIZONTAL_DIV] = ":TIM:DIV?",
38 [SCPI_CMD_GET_COUPLING] = ":CHAN%d:COUP?",
39 [SCPI_CMD_SET_COUPLING] = ":CHAN%d:COUP %s",
40 [SCPI_CMD_GET_SAMPLE_RATE] = ":ACQ:SRAT?",
41 [SCPI_CMD_GET_ANALOG_DATA] = ":FORM:BORD %s;" \
42 ":FORM REAL,32;:CHAN%d:DATA?",
43 [SCPI_CMD_GET_VERTICAL_SCALE] = ":CHAN%d:SCAL?",
44 [SCPI_CMD_SET_VERTICAL_SCALE] = ":CHAN%d:SCAL %s",
45 [SCPI_CMD_GET_DIG_POD_STATE] = ":POD%d:STAT?",
46 [SCPI_CMD_SET_DIG_POD_STATE] = ":POD%d:STAT %d",
47 [SCPI_CMD_GET_TRIGGER_SLOPE] = ":TRIG:A:EDGE:SLOP?",
48 [SCPI_CMD_SET_TRIGGER_SLOPE] = ":TRIG:A:TYPE EDGE;:TRIG:A:EDGE:SLOP %s",
49 [SCPI_CMD_GET_TRIGGER_PATTERN] = ":TRIG:A:PATT:SOUR?",
50 [SCPI_CMD_SET_TRIGGER_PATTERN] = ":TRIG:A:TYPE LOGIC;" \
51 ":TRIG:A:PATT:FUNC AND;" \
52 ":TRIG:A:PATT:COND \"TRUE\";" \
53 ":TRIG:A:PATT:MODE OFF;" \
54 ":TRIG:A:PATT:SOUR \"%s\"",
55 [SCPI_CMD_GET_TRIGGER_SOURCE] = ":TRIG:A:SOUR?",
56 [SCPI_CMD_SET_TRIGGER_SOURCE] = ":TRIG:A:SOUR %s",
57 [SCPI_CMD_GET_DIG_CHAN_STATE] = ":LOG%d:STAT?",
58 [SCPI_CMD_SET_DIG_CHAN_STATE] = ":LOG%d:STAT %d",
59 [SCPI_CMD_GET_VERTICAL_OFFSET] = ":CHAN%d:POS?",
60 [SCPI_CMD_GET_HORIZ_TRIGGERPOS] = ":TIM:POS?",
61 [SCPI_CMD_SET_HORIZ_TRIGGERPOS] = ":TIM:POS %s",
62 [SCPI_CMD_GET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT?",
63 [SCPI_CMD_SET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT %d",
64 [SCPI_CMD_GET_PROBE_UNIT] = ":PROB%d:SET:ATT:UNIT?",
65 [SCPI_CMD_GET_DIG_POD_THRESHOLD] = ":POD%d:THR?",
66 [SCPI_CMD_SET_DIG_POD_THRESHOLD] = ":POD%d:THR %s",
67 [SCPI_CMD_GET_DIG_POD_USER_THRESHOLD] = ":POD%d:THR:UDL%d?",
68 [SCPI_CMD_SET_DIG_POD_USER_THRESHOLD] = ":POD%d:THR:UDL%d %s",
69};
70
71static const char *rohde_schwarz_log_not_pod_scpi_dialect[] = {
72 [SCPI_CMD_GET_DIG_DATA] = ":FORM UINT,8;:LOG%d:DATA?",
73 [SCPI_CMD_GET_TIMEBASE] = ":TIM:SCAL?",
74 [SCPI_CMD_SET_TIMEBASE] = ":TIM:SCAL %s",
75 [SCPI_CMD_GET_HORIZONTAL_DIV] = ":TIM:DIV?",
76 [SCPI_CMD_GET_COUPLING] = ":CHAN%d:COUP?",
77 [SCPI_CMD_SET_COUPLING] = ":CHAN%d:COUP %s",
78 [SCPI_CMD_GET_SAMPLE_RATE] = ":ACQ:SRAT?",
79 [SCPI_CMD_GET_ANALOG_DATA] = ":FORM:BORD %s;" \
80 ":FORM REAL,32;:CHAN%d:DATA?",
81 [SCPI_CMD_GET_VERTICAL_SCALE] = ":CHAN%d:SCAL?",
82 [SCPI_CMD_SET_VERTICAL_SCALE] = ":CHAN%d:SCAL %s",
83 [SCPI_CMD_GET_DIG_POD_STATE] = ":LOG%d:STAT?",
84 [SCPI_CMD_SET_DIG_POD_STATE] = ":LOG%d:STAT %d",
85 [SCPI_CMD_GET_TRIGGER_SLOPE] = ":TRIG:A:EDGE:SLOP?",
86 [SCPI_CMD_SET_TRIGGER_SLOPE] = ":TRIG:A:TYPE EDGE;:TRIG:A:EDGE:SLOP %s",
87 [SCPI_CMD_GET_TRIGGER_PATTERN] = ":TRIG:A:PATT:SOUR?",
88 [SCPI_CMD_SET_TRIGGER_PATTERN] = ":TRIG:A:TYPE LOGIC;" \
89 ":TRIG:A:PATT:FUNC AND;" \
90 ":TRIG:A:PATT:COND \"TRUE\";" \
91 ":TRIG:A:PATT:MODE OFF;" \
92 ":TRIG:A:PATT:SOUR \"%s\"",
93 [SCPI_CMD_GET_TRIGGER_SOURCE] = ":TRIG:A:SOUR?",
94 [SCPI_CMD_SET_TRIGGER_SOURCE] = ":TRIG:A:SOUR %s",
95 [SCPI_CMD_GET_DIG_CHAN_STATE] = ":LOG%d:STAT?",
96 [SCPI_CMD_SET_DIG_CHAN_STATE] = ":LOG%d:STAT %d",
97 [SCPI_CMD_GET_VERTICAL_OFFSET] = ":CHAN%d:POS?", /* Might not be supported on RTB200x... */
98 [SCPI_CMD_GET_HORIZ_TRIGGERPOS] = ":TIM:POS?",
99 [SCPI_CMD_SET_HORIZ_TRIGGERPOS] = ":TIM:POS %s",
100 [SCPI_CMD_GET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT?",
101 [SCPI_CMD_SET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT %d",
102 [SCPI_CMD_GET_PROBE_UNIT] = ":PROB%d:SET:ATT:UNIT?",
103 [SCPI_CMD_GET_DIG_POD_THRESHOLD] = ":DIG%d:TECH?",
104 [SCPI_CMD_SET_DIG_POD_THRESHOLD] = ":DIG%d:TECH %s",
105 [SCPI_CMD_GET_DIG_POD_USER_THRESHOLD] = ":DIG%d:THR?",
106 [SCPI_CMD_SET_DIG_POD_USER_THRESHOLD] = ":DIG%d:THR %s",
107};
108
109static const uint32_t devopts[] = {
110 SR_CONF_OSCILLOSCOPE,
111 SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
112 SR_CONF_LIMIT_FRAMES | SR_CONF_SET,
113 SR_CONF_SAMPLERATE | SR_CONF_GET,
114 SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
115 SR_CONF_NUM_HDIV | SR_CONF_GET,
116 SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET,
117 SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
118 SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
119 SR_CONF_TRIGGER_PATTERN | SR_CONF_GET | SR_CONF_SET,
120};
121
122static const uint32_t devopts_cg_analog[] = {
123 SR_CONF_NUM_VDIV | SR_CONF_GET,
124 SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
125 SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
126};
127
128static const uint32_t devopts_cg_digital[] = {
129 SR_CONF_LOGIC_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
130 SR_CONF_LOGIC_THRESHOLD_CUSTOM | SR_CONF_GET | SR_CONF_SET,
131};
132
133static const char *coupling_options[] = {
134 "AC", // AC with 50 Ohm termination (152x, 202x, 30xx, 1202)
135 "ACL", // AC with 1 MOhm termination
136 "DC", // DC with 50 Ohm termination
137 "DCL", // DC with 1 MOhm termination
138 "GND",
139};
140
141static const char *coupling_options_rtb200x[] = {
142 "ACL", // AC with 1 MOhm termination
143 "DCL", // DC with 1 MOhm termination
144 "GND",
145};
146
147static const char *coupling_options_rtm300x[] = {
148 "ACL", // AC with 1 MOhm termination
149 "DC", // DC with 50 Ohm termination
150 "DCL", // DC with 1 MOhm termination
151 "GND",
152};
153
154static const char *scope_trigger_slopes[] = {
155 "POS",
156 "NEG",
157 "EITH",
158};
159
160/* Predefined logic thresholds. */
161static const char *logic_threshold[] = {
162 "TTL",
163 "ECL",
164 "CMOS",
165 "USER1",
166 "USER2", // overwritten by logic_threshold_custom, use USER1 for permanent setting
167};
168
169static const char *logic_threshold_rtb200x_rtm300x[] = {
170 "TTL",
171 "ECL",
172 "CMOS",
173 "MAN", // overwritten by logic_threshold_custom
174};
175
176/* RTC1002, HMO Compact2 and HMO1002/HMO1202 */
177static const char *an2_dig8_trigger_sources[] = {
178 "CH1", "CH2",
179 "LINE", "EXT", "PATT", "BUS1", "BUS2",
180 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
181};
182
183/* HMO3xx2 */
184static const char *an2_dig16_trigger_sources[] = {
185 "CH1", "CH2",
186 "LINE", "EXT", "PATT", "BUS1", "BUS2",
187 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
188 "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
189};
190
191/* RTB2002 and RTM3002 */
192static const char *an2_dig16_sbus_trigger_sources[] = {
193 "CH1", "CH2",
194 "LINE", "EXT", "PATT", "SBUS1", "SBUS2",
195 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
196 "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
197};
198
199/* HMO Compact4 */
200static const char *an4_dig8_trigger_sources[] = {
201 "CH1", "CH2", "CH3", "CH4",
202 "LINE", "EXT", "PATT", "BUS1", "BUS2",
203 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
204};
205
206/* HMO3xx4 and HMO2524 */
207static const char *an4_dig16_trigger_sources[] = {
208 "CH1", "CH2", "CH3", "CH4",
209 "LINE", "EXT", "PATT", "BUS1", "BUS2",
210 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
211 "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
212};
213
214/* RTB2004, RTM3004 and RTA4004 */
215static const char *an4_dig16_sbus_trigger_sources[] = {
216 "CH1", "CH2", "CH3", "CH4",
217 "LINE", "EXT", "PATT", "SBUS1", "SBUS2",
218 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
219 "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
220};
221
222static const uint64_t timebases[][2] = {
223 /* nanoseconds */
224 { 1, 1000000000 },
225 { 2, 1000000000 },
226 { 5, 1000000000 },
227 { 10, 1000000000 },
228 { 20, 1000000000 },
229 { 50, 1000000000 },
230 { 100, 1000000000 },
231 { 200, 1000000000 },
232 { 500, 1000000000 },
233 /* microseconds */
234 { 1, 1000000 },
235 { 2, 1000000 },
236 { 5, 1000000 },
237 { 10, 1000000 },
238 { 20, 1000000 },
239 { 50, 1000000 },
240 { 100, 1000000 },
241 { 200, 1000000 },
242 { 500, 1000000 },
243 /* milliseconds */
244 { 1, 1000 },
245 { 2, 1000 },
246 { 5, 1000 },
247 { 10, 1000 },
248 { 20, 1000 },
249 { 50, 1000 },
250 { 100, 1000 },
251 { 200, 1000 },
252 { 500, 1000 },
253 /* seconds */
254 { 1, 1 },
255 { 2, 1 },
256 { 5, 1 },
257 { 10, 1 },
258 { 20, 1 },
259 { 50, 1 },
260};
261
262/* HMO Compact series (HMO722/724/1022/1024/1522/1524/2022/2024) do
263 * not support 1 ns timebase setting.
264 */
265static const uint64_t timebases_hmo_compact[][2] = {
266 /* nanoseconds */
267 { 2, 1000000000 },
268 { 5, 1000000000 },
269 { 10, 1000000000 },
270 { 20, 1000000000 },
271 { 50, 1000000000 },
272 { 100, 1000000000 },
273 { 200, 1000000000 },
274 { 500, 1000000000 },
275 /* microseconds */
276 { 1, 1000000 },
277 { 2, 1000000 },
278 { 5, 1000000 },
279 { 10, 1000000 },
280 { 20, 1000000 },
281 { 50, 1000000 },
282 { 100, 1000000 },
283 { 200, 1000000 },
284 { 500, 1000000 },
285 /* milliseconds */
286 { 1, 1000 },
287 { 2, 1000 },
288 { 5, 1000 },
289 { 10, 1000 },
290 { 20, 1000 },
291 { 50, 1000 },
292 { 100, 1000 },
293 { 200, 1000 },
294 { 500, 1000 },
295 /* seconds */
296 { 1, 1 },
297 { 2, 1 },
298 { 5, 1 },
299 { 10, 1 },
300 { 20, 1 },
301 { 50, 1 },
302};
303
304static const uint64_t vdivs[][2] = {
305 /* millivolts */
306 { 1, 1000 },
307 { 2, 1000 },
308 { 5, 1000 },
309 { 10, 1000 },
310 { 20, 1000 },
311 { 50, 1000 },
312 { 100, 1000 },
313 { 200, 1000 },
314 { 500, 1000 },
315 /* volts */
316 { 1, 1 },
317 { 2, 1 },
318 { 5, 1 },
319 { 10, 1 },
320};
321
322static const char *scope_analog_channel_names[] = {
323 "CH1", "CH2", "CH3", "CH4",
324};
325
326static const char *scope_digital_channel_names[] = {
327 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
328 "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
329};
330
331static struct scope_config scope_models[] = {
332 {
333 /* HMO Compact2: HMO722/1022/1522/2022 support only 8 digital channels. */
334 .name = {"HMO722", "HMO1022", "HMO1522", "HMO2022", NULL},
335 .analog_channels = 2,
336 .digital_channels = 8,
337
338 .analog_names = &scope_analog_channel_names,
339 .digital_names = &scope_digital_channel_names,
340
341 .devopts = &devopts,
342 .num_devopts = ARRAY_SIZE(devopts),
343
344 .devopts_cg_analog = &devopts_cg_analog,
345 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
346
347 .devopts_cg_digital = &devopts_cg_digital,
348 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
349
350 .coupling_options = &coupling_options,
351 .num_coupling_options = ARRAY_SIZE(coupling_options),
352
353 .logic_threshold = &logic_threshold,
354 .num_logic_threshold = ARRAY_SIZE(logic_threshold),
355 .logic_threshold_for_pod = TRUE,
356
357 .trigger_sources = &an2_dig8_trigger_sources,
358 .num_trigger_sources = ARRAY_SIZE(an2_dig8_trigger_sources),
359
360 .trigger_slopes = &scope_trigger_slopes,
361 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
362
363 .timebases = &timebases_hmo_compact,
364 .num_timebases = ARRAY_SIZE(timebases_hmo_compact),
365
366 .vdivs = &vdivs,
367 .num_vdivs = ARRAY_SIZE(vdivs),
368
369 .num_ydivs = 8,
370
371 .scpi_dialect = &hameg_scpi_dialect,
372 },
373 {
374 /* RTC1002 and HMO1002/HMO1202 support only 8 digital channels. */
375 .name = {"RTC1002", "HMO1002", "HMO1202", NULL},
376 .analog_channels = 2,
377 .digital_channels = 8,
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 = &an2_dig8_trigger_sources,
399 .num_trigger_sources = ARRAY_SIZE(an2_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_ydivs = 8,
411
412 .scpi_dialect = &hameg_scpi_dialect,
413 },
414 {
415 /* HMO3032/3042/3052/3522 support 16 digital channels. */
416 .name = {"HMO3032", "HMO3042", "HMO3052", "HMO3522", NULL},
417 .analog_channels = 2,
418 .digital_channels = 16,
419
420 .analog_names = &scope_analog_channel_names,
421 .digital_names = &scope_digital_channel_names,
422
423 .devopts = &devopts,
424 .num_devopts = ARRAY_SIZE(devopts),
425
426 .devopts_cg_analog = &devopts_cg_analog,
427 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
428
429 .devopts_cg_digital = &devopts_cg_digital,
430 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
431
432 .coupling_options = &coupling_options,
433 .num_coupling_options = ARRAY_SIZE(coupling_options),
434
435 .logic_threshold = &logic_threshold,
436 .num_logic_threshold = ARRAY_SIZE(logic_threshold),
437 .logic_threshold_for_pod = TRUE,
438
439 .trigger_sources = &an2_dig16_trigger_sources,
440 .num_trigger_sources = ARRAY_SIZE(an2_dig16_trigger_sources),
441
442 .trigger_slopes = &scope_trigger_slopes,
443 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
444
445 .timebases = &timebases,
446 .num_timebases = ARRAY_SIZE(timebases),
447
448 .vdivs = &vdivs,
449 .num_vdivs = ARRAY_SIZE(vdivs),
450
451 .num_ydivs = 8,
452
453 .scpi_dialect = &hameg_scpi_dialect,
454 },
455 {
456 /* HMO Compact4: HMO724/1024/1524/2024 support only 8 digital channels. */
457 .name = {"HMO724", "HMO1024", "HMO1524", "HMO2024", NULL},
458 .analog_channels = 4,
459 .digital_channels = 8,
460
461 .analog_names = &scope_analog_channel_names,
462 .digital_names = &scope_digital_channel_names,
463
464 .devopts = &devopts,
465 .num_devopts = ARRAY_SIZE(devopts),
466
467 .devopts_cg_analog = &devopts_cg_analog,
468 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
469
470 .devopts_cg_digital = &devopts_cg_digital,
471 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
472
473 .coupling_options = &coupling_options,
474 .num_coupling_options = ARRAY_SIZE(coupling_options),
475
476 .logic_threshold = &logic_threshold,
477 .num_logic_threshold = ARRAY_SIZE(logic_threshold),
478 .logic_threshold_for_pod = TRUE,
479
480 .trigger_sources = &an4_dig8_trigger_sources,
481 .num_trigger_sources = ARRAY_SIZE(an4_dig8_trigger_sources),
482
483 .trigger_slopes = &scope_trigger_slopes,
484 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
485
486 .timebases = &timebases_hmo_compact,
487 .num_timebases = ARRAY_SIZE(timebases_hmo_compact),
488
489 .vdivs = &vdivs,
490 .num_vdivs = ARRAY_SIZE(vdivs),
491
492 .num_ydivs = 8,
493
494 .scpi_dialect = &hameg_scpi_dialect,
495 },
496 {
497 .name = {"HMO2524", "HMO3034", "HMO3044", "HMO3054", "HMO3524", NULL},
498 .analog_channels = 4,
499 .digital_channels = 16,
500
501 .analog_names = &scope_analog_channel_names,
502 .digital_names = &scope_digital_channel_names,
503
504 .devopts = &devopts,
505 .num_devopts = ARRAY_SIZE(devopts),
506
507 .devopts_cg_analog = &devopts_cg_analog,
508 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
509
510 .devopts_cg_digital = &devopts_cg_digital,
511 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
512
513 .coupling_options = &coupling_options,
514 .num_coupling_options = ARRAY_SIZE(coupling_options),
515
516 .logic_threshold = &logic_threshold,
517 .num_logic_threshold = ARRAY_SIZE(logic_threshold),
518 .logic_threshold_for_pod = TRUE,
519
520 .trigger_sources = &an4_dig16_trigger_sources,
521 .num_trigger_sources = ARRAY_SIZE(an4_dig16_trigger_sources),
522
523 .trigger_slopes = &scope_trigger_slopes,
524 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
525
526 .timebases = &timebases,
527 .num_timebases = ARRAY_SIZE(timebases),
528
529 .vdivs = &vdivs,
530 .num_vdivs = ARRAY_SIZE(vdivs),
531
532 .num_ydivs = 8,
533
534 .scpi_dialect = &hameg_scpi_dialect,
535 },
536 {
537 .name = {"RTB2002", NULL},
538 .analog_channels = 2,
539 .digital_channels = 16,
540
541 .analog_names = &scope_analog_channel_names,
542 .digital_names = &scope_digital_channel_names,
543
544 .devopts = &devopts,
545 .num_devopts = ARRAY_SIZE(devopts),
546
547 .devopts_cg_analog = &devopts_cg_analog,
548 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
549
550 .devopts_cg_digital = &devopts_cg_digital,
551 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
552
553 .coupling_options = &coupling_options_rtb200x,
554 .num_coupling_options = ARRAY_SIZE(coupling_options_rtb200x),
555
556 .logic_threshold = &logic_threshold_rtb200x_rtm300x,
557 .num_logic_threshold = ARRAY_SIZE(logic_threshold_rtb200x_rtm300x),
558 .logic_threshold_for_pod = FALSE,
559
560 .trigger_sources = &an2_dig16_sbus_trigger_sources,
561 .num_trigger_sources = ARRAY_SIZE(an2_dig16_sbus_trigger_sources),
562
563 .trigger_slopes = &scope_trigger_slopes,
564 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
565
566 .timebases = &timebases,
567 .num_timebases = ARRAY_SIZE(timebases),
568
569 .vdivs = &vdivs,
570 .num_vdivs = ARRAY_SIZE(vdivs),
571
572 .num_ydivs = 8,
573
574 .scpi_dialect = &rohde_schwarz_log_not_pod_scpi_dialect,
575 },
576 {
577 .name = {"RTB2004", NULL},
578 .analog_channels = 4,
579 .digital_channels = 16,
580
581 .analog_names = &scope_analog_channel_names,
582 .digital_names = &scope_digital_channel_names,
583
584 .devopts = &devopts,
585 .num_devopts = ARRAY_SIZE(devopts),
586
587 .devopts_cg_analog = &devopts_cg_analog,
588 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
589
590 .devopts_cg_digital = &devopts_cg_digital,
591 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
592
593 .coupling_options = &coupling_options_rtb200x,
594 .num_coupling_options = ARRAY_SIZE(coupling_options_rtb200x),
595
596 .logic_threshold = &logic_threshold_rtb200x_rtm300x,
597 .num_logic_threshold = ARRAY_SIZE(logic_threshold_rtb200x_rtm300x),
598 .logic_threshold_for_pod = FALSE,
599
600 .trigger_sources = &an4_dig16_sbus_trigger_sources,
601 .num_trigger_sources = ARRAY_SIZE(an4_dig16_sbus_trigger_sources),
602
603 .trigger_slopes = &scope_trigger_slopes,
604 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
605
606 .timebases = &timebases,
607 .num_timebases = ARRAY_SIZE(timebases),
608
609 .vdivs = &vdivs,
610 .num_vdivs = ARRAY_SIZE(vdivs),
611
612 .num_ydivs = 8,
613
614 .scpi_dialect = &rohde_schwarz_log_not_pod_scpi_dialect,
615 },
616 {
617 .name = {"RTM3002", NULL},
618 .analog_channels = 2,
619 .digital_channels = 16,
620
621 .analog_names = &scope_analog_channel_names,
622 .digital_names = &scope_digital_channel_names,
623
624 .devopts = &devopts,
625 .num_devopts = ARRAY_SIZE(devopts),
626
627 .devopts_cg_analog = &devopts_cg_analog,
628 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
629
630 .devopts_cg_digital = &devopts_cg_digital,
631 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
632
633 .coupling_options = &coupling_options_rtm300x,
634 .num_coupling_options = ARRAY_SIZE(coupling_options_rtm300x),
635
636 .logic_threshold = &logic_threshold_rtb200x_rtm300x,
637 .num_logic_threshold = ARRAY_SIZE(logic_threshold_rtb200x_rtm300x),
638 .logic_threshold_for_pod = FALSE,
639
640 .trigger_sources = &an2_dig16_sbus_trigger_sources,
641 .num_trigger_sources = ARRAY_SIZE(an2_dig16_sbus_trigger_sources),
642
643 .trigger_slopes = &scope_trigger_slopes,
644 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
645
646 .timebases = &timebases,
647 .num_timebases = ARRAY_SIZE(timebases),
648
649 .vdivs = &vdivs,
650 .num_vdivs = ARRAY_SIZE(vdivs),
651
652 .num_ydivs = 8,
653
654 .scpi_dialect = &rohde_schwarz_log_not_pod_scpi_dialect,
655 },
656 {
657 .name = {"RTM3004", NULL},
658 .analog_channels = 4,
659 .digital_channels = 16,
660
661 .analog_names = &scope_analog_channel_names,
662 .digital_names = &scope_digital_channel_names,
663
664 .devopts = &devopts,
665 .num_devopts = ARRAY_SIZE(devopts),
666
667 .devopts_cg_analog = &devopts_cg_analog,
668 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
669
670 .devopts_cg_digital = &devopts_cg_digital,
671 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
672
673 .coupling_options = &coupling_options_rtm300x,
674 .num_coupling_options = ARRAY_SIZE(coupling_options_rtm300x),
675
676 .logic_threshold = &logic_threshold_rtb200x_rtm300x,
677 .num_logic_threshold = ARRAY_SIZE(logic_threshold_rtb200x_rtm300x),
678 .logic_threshold_for_pod = FALSE,
679
680 .trigger_sources = &an4_dig16_sbus_trigger_sources,
681 .num_trigger_sources = ARRAY_SIZE(an4_dig16_sbus_trigger_sources),
682
683 .trigger_slopes = &scope_trigger_slopes,
684 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
685
686 .timebases = &timebases,
687 .num_timebases = ARRAY_SIZE(timebases),
688
689 .vdivs = &vdivs,
690 .num_vdivs = ARRAY_SIZE(vdivs),
691
692 .num_ydivs = 8,
693
694 .scpi_dialect = &rohde_schwarz_log_not_pod_scpi_dialect,
695 },
696 {
697 .name = {"RTA4004", NULL},
698 .analog_channels = 4,
699 .digital_channels = 16,
700
701 .analog_names = &scope_analog_channel_names,
702 .digital_names = &scope_digital_channel_names,
703
704 .devopts = &devopts,
705 .num_devopts = ARRAY_SIZE(devopts),
706
707 .devopts_cg_analog = &devopts_cg_analog,
708 .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog),
709
710 .devopts_cg_digital = &devopts_cg_digital,
711 .num_devopts_cg_digital = ARRAY_SIZE(devopts_cg_digital),
712
713 .coupling_options = &coupling_options_rtm300x,
714 .num_coupling_options = ARRAY_SIZE(coupling_options_rtm300x),
715
716 .logic_threshold = &logic_threshold_rtb200x_rtm300x,
717 .num_logic_threshold = ARRAY_SIZE(logic_threshold_rtb200x_rtm300x),
718 .logic_threshold_for_pod = FALSE,
719
720 .trigger_sources = &an4_dig16_sbus_trigger_sources,
721 .num_trigger_sources = ARRAY_SIZE(an4_dig16_sbus_trigger_sources),
722
723 .trigger_slopes = &scope_trigger_slopes,
724 .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes),
725
726 .timebases = &timebases,
727 .num_timebases = ARRAY_SIZE(timebases),
728
729 .vdivs = &vdivs,
730 .num_vdivs = ARRAY_SIZE(vdivs),
731
732 .num_ydivs = 8,
733
734 .scpi_dialect = &rohde_schwarz_log_not_pod_scpi_dialect,
735 },
736};
737
738static void scope_state_dump(const struct scope_config *config,
739 struct scope_state *state)
740{
741 unsigned int i;
742 char *tmp;
743
744 for (i = 0; i < config->analog_channels; i++) {
745 tmp = sr_voltage_string((*config->vdivs)[state->analog_channels[i].vdiv][0],
746 (*config->vdivs)[state->analog_channels[i].vdiv][1]);
747 sr_info("State of analog channel %d -> %s : %s (coupling) %s (vdiv) %2.2e (offset)",
748 i + 1, state->analog_channels[i].state ? "On" : "Off",
749 (*config->coupling_options)[state->analog_channels[i].coupling],
750 tmp, state->analog_channels[i].vertical_offset);
751 }
752
753 for (i = 0; i < config->digital_channels; i++) {
754 sr_info("State of digital channel %d -> %s", i,
755 state->digital_channels[i] ? "On" : "Off");
756 }
757
758 for (i = 0; i < config->digital_pods; i++) {
759 if (!strncmp("USER", (*config->logic_threshold)[state->digital_pods[i].threshold], 4) ||
760 !strcmp("MAN", (*config->logic_threshold)[state->digital_pods[i].threshold]))
761 sr_info("State of digital POD %d -> %s : %E (threshold)", i + 1,
762 state->digital_pods[i].state ? "On" : "Off",
763 state->digital_pods[i].user_threshold);
764 else
765 sr_info("State of digital POD %d -> %s : %s (threshold)", i + 1,
766 state->digital_pods[i].state ? "On" : "Off",
767 (*config->logic_threshold)[state->digital_pods[i].threshold]);
768 }
769
770 tmp = sr_period_string((*config->timebases)[state->timebase][0],
771 (*config->timebases)[state->timebase][1]);
772 sr_info("Current timebase: %s", tmp);
773 g_free(tmp);
774
775 tmp = sr_samplerate_string(state->sample_rate);
776 sr_info("Current samplerate: %s", tmp);
777 g_free(tmp);
778
779 if (!strcmp("PATT", (*config->trigger_sources)[state->trigger_source]))
780 sr_info("Current trigger: %s (pattern), %.2f (offset)",
781 state->trigger_pattern,
782 state->horiz_triggerpos);
783 else // Edge (slope) trigger
784 sr_info("Current trigger: %s (source), %s (slope) %.2f (offset)",
785 (*config->trigger_sources)[state->trigger_source],
786 (*config->trigger_slopes)[state->trigger_slope],
787 state->horiz_triggerpos);
788}
789
790static int scope_state_get_array_option(struct sr_scpi_dev_inst *scpi,
791 const char *command, const char *(*array)[], unsigned int n, int *result)
792{
793 char *tmp;
794 int idx;
795
796 if (sr_scpi_get_string(scpi, command, &tmp) != SR_OK)
797 return SR_ERR;
798
799 if ((idx = std_str_idx_s(tmp, *array, n)) < 0) {
800 g_free(tmp);
801 return SR_ERR_ARG;
802 }
803
804 *result = idx;
805
806 g_free(tmp);
807
808 return SR_OK;
809}
810
811/**
812 * This function takes a value of the form "2.000E-03" and returns the index
813 * of an array where a matching pair was found.
814 *
815 * @param value The string to be parsed.
816 * @param array The array of s/f pairs.
817 * @param array_len The number of pairs in the array.
818 * @param result The index at which a matching pair was found.
819 *
820 * @return SR_ERR on any parsing error, SR_OK otherwise.
821 */
822static int array_float_get(gchar *value, const uint64_t array[][2],
823 int array_len, unsigned int *result)
824{
825 struct sr_rational rval;
826 struct sr_rational aval;
827
828 if (sr_parse_rational(value, &rval) != SR_OK)
829 return SR_ERR;
830
831 for (int i = 0; i < array_len; i++) {
832 sr_rational_set(&aval, array[i][0], array[i][1]);
833 if (sr_rational_eq(&rval, &aval)) {
834 *result = i;
835 return SR_OK;
836 }
837 }
838
839 return SR_ERR;
840}
841
842static struct sr_channel *get_channel_by_index_and_type(GSList *channel_lhead,
843 int index, int type)
844{
845 while (channel_lhead) {
846 struct sr_channel *ch = channel_lhead->data;
847 if (ch->index == index && ch->type == type)
848 return ch;
849
850 channel_lhead = channel_lhead->next;
851 }
852
853 return 0;
854}
855
856static int analog_channel_state_get(struct sr_dev_inst *sdi,
857 const struct scope_config *config,
858 struct scope_state *state)
859{
860 unsigned int i, j;
861 char command[MAX_COMMAND_SIZE];
862 char *tmp_str;
863 struct sr_channel *ch;
864 struct sr_scpi_dev_inst *scpi = sdi->conn;
865
866 for (i = 0; i < config->analog_channels; i++) {
867 g_snprintf(command, sizeof(command),
868 (*config->scpi_dialect)[SCPI_CMD_GET_ANALOG_CHAN_STATE],
869 i + 1);
870
871 if (sr_scpi_get_bool(scpi, command,
872 &state->analog_channels[i].state) != SR_OK)
873 return SR_ERR;
874
875 ch = get_channel_by_index_and_type(sdi->channels, i, SR_CHANNEL_ANALOG);
876 if (ch)
877 ch->enabled = state->analog_channels[i].state;
878
879 g_snprintf(command, sizeof(command),
880 (*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_SCALE],
881 i + 1);
882
883 if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK)
884 return SR_ERR;
885
886 if (array_float_get(tmp_str, ARRAY_AND_SIZE(vdivs), &j) != SR_OK) {
887 g_free(tmp_str);
888 sr_err("Could not determine array index for vertical div scale.");
889 return SR_ERR;
890 }
891
892 g_free(tmp_str);
893 state->analog_channels[i].vdiv = j;
894
895 g_snprintf(command, sizeof(command),
896 (*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_OFFSET],
897 i + 1);
898
899 if (sr_scpi_get_float(scpi, command,
900 &state->analog_channels[i].vertical_offset) != SR_OK)
901 return SR_ERR;
902
903 g_snprintf(command, sizeof(command),
904 (*config->scpi_dialect)[SCPI_CMD_GET_COUPLING],
905 i + 1);
906
907 if (scope_state_get_array_option(scpi, command, config->coupling_options,
908 config->num_coupling_options,
909 &state->analog_channels[i].coupling) != SR_OK)
910 return SR_ERR;
911
912 g_snprintf(command, sizeof(command),
913 (*config->scpi_dialect)[SCPI_CMD_GET_PROBE_UNIT],
914 i + 1);
915
916 if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK)
917 return SR_ERR;
918
919 if (tmp_str[0] == 'A')
920 state->analog_channels[i].probe_unit = 'A';
921 else
922 state->analog_channels[i].probe_unit = 'V';
923 g_free(tmp_str);
924 }
925
926 return SR_OK;
927}
928
929static int digital_channel_state_get(struct sr_dev_inst *sdi,
930 const struct scope_config *config,
931 struct scope_state *state)
932{
933 unsigned int i, idx;
934 int result = SR_ERR;
935 static char *logic_threshold_short[] = {};
936 char command[MAX_COMMAND_SIZE];
937 struct sr_channel *ch;
938 struct sr_scpi_dev_inst *scpi = sdi->conn;
939
940 for (i = 0; i < config->digital_channels; i++) {
941 g_snprintf(command, sizeof(command),
942 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_CHAN_STATE],
943 i);
944
945 if (sr_scpi_get_bool(scpi, command,
946 &state->digital_channels[i]) != SR_OK)
947 return SR_ERR;
948
949 ch = get_channel_by_index_and_type(sdi->channels, i, SR_CHANNEL_LOGIC);
950 if (ch)
951 ch->enabled = state->digital_channels[i];
952 }
953
954 /* According to the SCPI standard, on models that support multiple
955 * user-defined logic threshold settings the response to the command
956 * SCPI_CMD_GET_DIG_POD_THRESHOLD might return "USER" instead of
957 * "USER1".
958 *
959 * This makes more difficult to validate the response when the logic
960 * threshold is set to "USER1" and therefore we need to prevent device
961 * opening failures in such configuration case...
962 */
963 for (i = 0; i < config->num_logic_threshold; i++) {
964 logic_threshold_short[i] = g_strdup((*config->logic_threshold)[i]);
965 if (!strcmp("USER1", (*config->logic_threshold)[i]))
966 g_strlcpy(logic_threshold_short[i],
967 (*config->logic_threshold)[i], strlen((*config->logic_threshold)[i]));
968 }
969
970 for (i = 0; i < config->digital_pods; i++) {
971 g_snprintf(command, sizeof(command),
972 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_STATE],
973 i + 1);
974
975 if (sr_scpi_get_bool(scpi, command,
976 &state->digital_pods[i].state) != SR_OK)
977 goto exit;
978
979 /* Check if the threshold command is based on the POD or digital channel index. */
980 if (config->logic_threshold_for_pod)
981 idx = i + 1;
982 else
983 idx = i * DIGITAL_CHANNELS_PER_POD;
984
985 g_snprintf(command, sizeof(command),
986 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_THRESHOLD],
987 idx);
988
989 /* Check for both standard and shortened responses. */
990 if (scope_state_get_array_option(scpi, command, config->logic_threshold,
991 config->num_logic_threshold,
992 &state->digital_pods[i].threshold) != SR_OK)
993 if (scope_state_get_array_option(scpi, command, (const char * (*)[]) &logic_threshold_short,
994 config->num_logic_threshold,
995 &state->digital_pods[i].threshold) != SR_OK)
996 goto exit;
997
998 /* If used-defined or custom threshold is active, get the level. */
999 if (!strcmp("USER1", (*config->logic_threshold)[state->digital_pods[i].threshold]))
1000 g_snprintf(command, sizeof(command),
1001 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_USER_THRESHOLD],
1002 idx, 1); /* USER1 logic threshold setting. */
1003 else if (!strcmp("USER2", (*config->logic_threshold)[state->digital_pods[i].threshold]))
1004 g_snprintf(command, sizeof(command),
1005 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_USER_THRESHOLD],
1006 idx, 2); /* USER2 for custom logic_threshold setting. */
1007 else if (!strcmp("USER", (*config->logic_threshold)[state->digital_pods[i].threshold]) ||
1008 !strcmp("MAN", (*config->logic_threshold)[state->digital_pods[i].threshold]))
1009 g_snprintf(command, sizeof(command),
1010 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_USER_THRESHOLD],
1011 idx); /* USER or MAN for custom logic_threshold setting. */
1012 if (!strcmp("USER1", (*config->logic_threshold)[state->digital_pods[i].threshold]) ||
1013 !strcmp("USER2", (*config->logic_threshold)[state->digital_pods[i].threshold]) ||
1014 !strcmp("USER", (*config->logic_threshold)[state->digital_pods[i].threshold]) ||
1015 !strcmp("MAN", (*config->logic_threshold)[state->digital_pods[i].threshold]))
1016 if (sr_scpi_get_float(scpi, command,
1017 &state->digital_pods[i].user_threshold) != SR_OK)
1018 goto exit;
1019 }
1020
1021 result = SR_OK;
1022
1023exit:
1024 for (i = 0; i < config->num_logic_threshold; i++)
1025 g_free(logic_threshold_short[i]);
1026
1027 return result;
1028}
1029
1030SR_PRIV int hmo_update_sample_rate(const struct sr_dev_inst *sdi)
1031{
1032 struct dev_context *devc;
1033 struct scope_state *state;
1034 const struct scope_config *config;
1035 float tmp_float;
1036
1037 devc = sdi->priv;
1038 config = devc->model_config;
1039 state = devc->model_state;
1040
1041 if (sr_scpi_get_float(sdi->conn,
1042 (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE],
1043 &tmp_float) != SR_OK)
1044 return SR_ERR;
1045
1046 state->sample_rate = tmp_float;
1047
1048 return SR_OK;
1049}
1050
1051SR_PRIV int hmo_scope_state_get(struct sr_dev_inst *sdi)
1052{
1053 struct dev_context *devc;
1054 struct scope_state *state;
1055 const struct scope_config *config;
1056 float tmp_float;
1057 unsigned int i;
1058 char *tmp_str;
1059
1060 devc = sdi->priv;
1061 config = devc->model_config;
1062 state = devc->model_state;
1063
1064 sr_info("Fetching scope state");
1065
1066 if (analog_channel_state_get(sdi, config, state) != SR_OK)
1067 return SR_ERR;
1068
1069 if (digital_channel_state_get(sdi, config, state) != SR_OK)
1070 return SR_ERR;
1071
1072 if (sr_scpi_get_string(sdi->conn,
1073 (*config->scpi_dialect)[SCPI_CMD_GET_TIMEBASE],
1074 &tmp_str) != SR_OK)
1075 return SR_ERR;
1076
1077 if (array_float_get(tmp_str, ARRAY_AND_SIZE(timebases), &i) != SR_OK) {
1078 g_free(tmp_str);
1079 sr_err("Could not determine array index for time base.");
1080 return SR_ERR;
1081 }
1082 g_free(tmp_str);
1083
1084 state->timebase = i;
1085
1086 /* Determine the number of horizontal (x) divisions. */
1087 if (sr_scpi_get_int(sdi->conn,
1088 (*config->scpi_dialect)[SCPI_CMD_GET_HORIZONTAL_DIV],
1089 (int *)&config->num_xdivs) != SR_OK)
1090 return SR_ERR;
1091
1092 if (sr_scpi_get_float(sdi->conn,
1093 (*config->scpi_dialect)[SCPI_CMD_GET_HORIZ_TRIGGERPOS],
1094 &tmp_float) != SR_OK)
1095 return SR_ERR;
1096 state->horiz_triggerpos = tmp_float /
1097 (((double) (*config->timebases)[state->timebase][0] /
1098 (*config->timebases)[state->timebase][1]) * config->num_xdivs);
1099 state->horiz_triggerpos -= 0.5;
1100 state->horiz_triggerpos *= -1;
1101
1102 if (scope_state_get_array_option(sdi->conn,
1103 (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SOURCE],
1104 config->trigger_sources, config->num_trigger_sources,
1105 &state->trigger_source) != SR_OK)
1106 return SR_ERR;
1107
1108 if (scope_state_get_array_option(sdi->conn,
1109 (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SLOPE],
1110 config->trigger_slopes, config->num_trigger_slopes,
1111 &state->trigger_slope) != SR_OK)
1112 return SR_ERR;
1113
1114 if (sr_scpi_get_string(sdi->conn,
1115 (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_PATTERN],
1116 &tmp_str) != SR_OK)
1117 return SR_ERR;
1118 strncpy(state->trigger_pattern,
1119 sr_scpi_unquote_string(tmp_str),
1120 MAX_ANALOG_CHANNEL_COUNT + MAX_DIGITAL_CHANNEL_COUNT);
1121 g_free(tmp_str);
1122
1123 if (hmo_update_sample_rate(sdi) != SR_OK)
1124 return SR_ERR;
1125
1126 sr_info("Fetching finished.");
1127
1128 scope_state_dump(config, state);
1129
1130 return SR_OK;
1131}
1132
1133static struct scope_state *scope_state_new(const struct scope_config *config)
1134{
1135 struct scope_state *state;
1136
1137 state = g_malloc0(sizeof(struct scope_state));
1138 state->analog_channels = g_malloc0_n(config->analog_channels,
1139 sizeof(struct analog_channel_state));
1140 state->digital_channels = g_malloc0_n(
1141 config->digital_channels, sizeof(gboolean));
1142 state->digital_pods = g_malloc0_n(config->digital_pods,
1143 sizeof(struct digital_pod_state));
1144
1145 return state;
1146}
1147
1148SR_PRIV void hmo_scope_state_free(struct scope_state *state)
1149{
1150 g_free(state->analog_channels);
1151 g_free(state->digital_channels);
1152 g_free(state->digital_pods);
1153 g_free(state);
1154}
1155
1156SR_PRIV int hmo_init_device(struct sr_dev_inst *sdi)
1157{
1158 int model_index;
1159 unsigned int i, j, group;
1160 struct sr_channel *ch;
1161 struct dev_context *devc;
1162 int ret;
1163
1164 devc = sdi->priv;
1165 model_index = -1;
1166
1167 /* Find the exact model. */
1168 for (i = 0; i < ARRAY_SIZE(scope_models); i++) {
1169 for (j = 0; scope_models[i].name[j]; j++) {
1170 if (!strcmp(sdi->model, scope_models[i].name[j])) {
1171 model_index = i;
1172 break;
1173 }
1174 }
1175 if (model_index != -1)
1176 break;
1177 }
1178
1179 if (model_index == -1) {
1180 sr_dbg("Unsupported device.");
1181 return SR_ERR_NA;
1182 }
1183
1184 /* Configure the number of PODs given the number of digital channels. */
1185 scope_models[model_index].digital_pods = scope_models[model_index].digital_channels / DIGITAL_CHANNELS_PER_POD;
1186
1187 devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group*) *
1188 scope_models[model_index].analog_channels);
1189 devc->digital_groups = g_malloc0(sizeof(struct sr_channel_group*) *
1190 scope_models[model_index].digital_pods);
1191 if (!devc->analog_groups || !devc->digital_groups) {
1192 g_free(devc->analog_groups);
1193 g_free(devc->digital_groups);
1194 return SR_ERR_MALLOC;
1195 }
1196
1197 /* Add analog channels. */
1198 for (i = 0; i < scope_models[model_index].analog_channels; i++) {
1199 ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE,
1200 (*scope_models[model_index].analog_names)[i]);
1201
1202 devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
1203
1204 devc->analog_groups[i]->name = g_strdup(
1205 (char *)(*scope_models[model_index].analog_names)[i]);
1206 devc->analog_groups[i]->channels = g_slist_append(NULL, ch);
1207
1208 sdi->channel_groups = g_slist_append(sdi->channel_groups,
1209 devc->analog_groups[i]);
1210 }
1211
1212 /* Add digital channel groups. */
1213 ret = SR_OK;
1214 for (i = 0; i < scope_models[model_index].digital_pods; i++) {
1215 devc->digital_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
1216 if (!devc->digital_groups[i]) {
1217 ret = SR_ERR_MALLOC;
1218 break;
1219 }
1220 devc->digital_groups[i]->name = g_strdup_printf("POD%d", i + 1);
1221 sdi->channel_groups = g_slist_append(sdi->channel_groups,
1222 devc->digital_groups[i]);
1223 }
1224 if (ret != SR_OK)
1225 return ret;
1226
1227 /* Add digital channels. */
1228 for (i = 0; i < scope_models[model_index].digital_channels; i++) {
1229 ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
1230 (*scope_models[model_index].digital_names)[i]);
1231
1232 group = i / DIGITAL_CHANNELS_PER_POD;
1233 devc->digital_groups[group]->channels = g_slist_append(
1234 devc->digital_groups[group]->channels, ch);
1235 }
1236
1237 devc->model_config = &scope_models[model_index];
1238 devc->samples_limit = 0;
1239 devc->frame_limit = 0;
1240
1241 if (!(devc->model_state = scope_state_new(devc->model_config)))
1242 return SR_ERR_MALLOC;
1243
1244 return SR_OK;
1245}
1246
1247/* Queue data of one channel group, for later submission. */
1248SR_PRIV void hmo_queue_logic_data(struct dev_context *devc,
1249 size_t group, GByteArray *pod_data)
1250{
1251 size_t size;
1252 GByteArray *store;
1253 uint8_t *logic_data;
1254 size_t idx, logic_step;
1255
1256 /*
1257 * Upon first invocation, allocate the array which can hold the
1258 * combined logic data for all channels. Assume that each channel
1259 * will yield an identical number of samples per receive call.
1260 *
1261 * As a poor man's safety measure: (Silently) skip processing
1262 * for unexpected sample counts, and ignore samples for
1263 * unexpected channel groups. Don't bother with complicated
1264 * resize logic, considering that many models only support one
1265 * pod, and the most capable supported models have two pods of
1266 * identical size. We haven't yet seen any "odd" configuration.
1267 */
1268 if (!devc->logic_data) {
1269 size = pod_data->len * devc->pod_count;
1270 store = g_byte_array_sized_new(size);
1271 memset(store->data, 0, size);
1272 store = g_byte_array_set_size(store, size);
1273 devc->logic_data = store;
1274 } else {
1275 store = devc->logic_data;
1276 size = store->len / devc->pod_count;
1277 if (group >= devc->pod_count)
1278 return;
1279 }
1280
1281 /*
1282 * Fold the data of the most recently received channel group into
1283 * the storage, where data resides for all channels combined.
1284 */
1285 logic_data = store->data;
1286 logic_data += group;
1287 logic_step = devc->pod_count;
1288 for (idx = 0; idx < pod_data->len; idx++) {
1289 *logic_data = pod_data->data[idx];
1290 logic_data += logic_step;
1291 }
1292
1293 /* Truncate acquisition if a smaller number of samples has been requested. */
1294 if (devc->samples_limit > 0 && devc->logic_data->len > devc->samples_limit * devc->pod_count)
1295 devc->logic_data->len = devc->samples_limit * devc->pod_count;
1296}
1297
1298/* Submit data for all channels, after the individual groups got collected. */
1299SR_PRIV void hmo_send_logic_packet(struct sr_dev_inst *sdi,
1300 struct dev_context *devc)
1301{
1302 struct sr_datafeed_packet packet;
1303 struct sr_datafeed_logic logic;
1304
1305 if (!devc->logic_data)
1306 return;
1307
1308 logic.data = devc->logic_data->data;
1309 logic.length = devc->logic_data->len;
1310 logic.unitsize = devc->pod_count;
1311
1312 packet.type = SR_DF_LOGIC;
1313 packet.payload = &logic;
1314
1315 sr_session_send(sdi, &packet);
1316}
1317
1318/* Undo previous resource allocation. */
1319SR_PRIV void hmo_cleanup_logic_data(struct dev_context *devc)
1320{
1321
1322 if (devc->logic_data) {
1323 g_byte_array_free(devc->logic_data, TRUE);
1324 devc->logic_data = NULL;
1325 }
1326 /*
1327 * Keep 'pod_count'! It's required when more frames will be
1328 * received, and does not harm when kept after acquisition.
1329 */
1330}
1331
1332SR_PRIV int hmo_receive_data(int fd, int revents, void *cb_data)
1333{
1334 struct sr_channel *ch;
1335 struct sr_dev_inst *sdi;
1336 struct dev_context *devc;
1337 struct scope_state *state;
1338 struct sr_datafeed_packet packet;
1339 GByteArray *data;
1340 struct sr_datafeed_analog analog;
1341 struct sr_analog_encoding encoding;
1342 struct sr_analog_meaning meaning;
1343 struct sr_analog_spec spec;
1344 struct sr_datafeed_logic logic;
1345 size_t group;
1346
1347 (void)fd;
1348 (void)revents;
1349
1350 data = NULL;
1351
1352 if (!(sdi = cb_data))
1353 return TRUE;
1354
1355 if (!(devc = sdi->priv))
1356 return TRUE;
1357
1358 /* Although this is correct in general, the USBTMC libusb implementation
1359 * currently does not generate an event prior to the first read. Often
1360 * it is ok to start reading just after the 50ms timeout. See bug #785.
1361 if (revents != G_IO_IN)
1362 return TRUE;
1363 */
1364
1365 ch = devc->current_channel->data;
1366 state = devc->model_state;
1367
1368 /*
1369 * Send "frame begin" packet upon reception of data for the
1370 * first enabled channel.
1371 */
1372 if (devc->current_channel == devc->enabled_channels) {
1373 packet.type = SR_DF_FRAME_BEGIN;
1374 sr_session_send(sdi, &packet);
1375 }
1376
1377 /*
1378 * Pass on the received data of the channel(s).
1379 */
1380 switch (ch->type) {
1381 case SR_CHANNEL_ANALOG:
1382 if (sr_scpi_get_block(sdi->conn, NULL, &data) != SR_OK) {
1383 if (data)
1384 g_byte_array_free(data, TRUE);
1385 return TRUE;
1386 }
1387
1388 packet.type = SR_DF_ANALOG;
1389
1390 analog.data = data->data;
1391 analog.num_samples = data->len / sizeof(float);
1392 /* Truncate acquisition if a smaller number of samples has been requested. */
1393 if (devc->samples_limit > 0 && analog.num_samples > devc->samples_limit)
1394 analog.num_samples = devc->samples_limit;
1395 analog.encoding = &encoding;
1396 analog.meaning = &meaning;
1397 analog.spec = &spec;
1398
1399 encoding.unitsize = sizeof(float);
1400 encoding.is_signed = TRUE;
1401 encoding.is_float = TRUE;
1402#ifdef WORDS_BIGENDIAN
1403 encoding.is_bigendian = TRUE;
1404#else
1405 encoding.is_bigendian = FALSE;
1406#endif
1407 /* TODO: Use proper 'digits' value for this device (and its modes). */
1408 encoding.digits = 2;
1409 encoding.is_digits_decimal = FALSE;
1410 encoding.scale.p = 1;
1411 encoding.scale.q = 1;
1412 encoding.offset.p = 0;
1413 encoding.offset.q = 1;
1414 if (state->analog_channels[ch->index].probe_unit == 'V') {
1415 meaning.mq = SR_MQ_VOLTAGE;
1416 meaning.unit = SR_UNIT_VOLT;
1417 } else {
1418 meaning.mq = SR_MQ_CURRENT;
1419 meaning.unit = SR_UNIT_AMPERE;
1420 }
1421 meaning.mqflags = 0;
1422 meaning.channels = g_slist_append(NULL, ch);
1423 /* TODO: Use proper 'digits' value for this device (and its modes). */
1424 spec.spec_digits = 2;
1425 packet.payload = &analog;
1426 sr_session_send(sdi, &packet);
1427 devc->num_samples = data->len / sizeof(float);
1428 g_slist_free(meaning.channels);
1429 g_byte_array_free(data, TRUE);
1430 data = NULL;
1431 break;
1432 case SR_CHANNEL_LOGIC:
1433 if (sr_scpi_get_block(sdi->conn, NULL, &data) != SR_OK) {
1434 if (data)
1435 g_byte_array_free(data, TRUE);
1436 return TRUE;
1437 }
1438
1439 /*
1440 * If only data from the first pod is involved in the
1441 * acquisition, then the raw input bytes can get passed
1442 * forward for performance reasons. When the second pod
1443 * is involved (either alone, or in combination with the
1444 * first pod), then the received bytes need to be put
1445 * into memory in such a layout that all channel groups
1446 * get combined, and a unitsize larger than a single byte
1447 * applies. The "queue" logic transparently copes with
1448 * any such configuration. This works around the lack
1449 * of support for "meaning" to logic data, which is used
1450 * above for analog data.
1451 */
1452 if (devc->pod_count == 1) {
1453 packet.type = SR_DF_LOGIC;
1454 logic.data = data->data;
1455 logic.length = data->len;
1456 /* Truncate acquisition if a smaller number of samples has been requested. */
1457 if (devc->samples_limit > 0 && logic.length > devc->samples_limit)
1458 logic.length = devc->samples_limit;
1459 logic.unitsize = 1;
1460 packet.payload = &logic;
1461 sr_session_send(sdi, &packet);
1462 } else {
1463 group = ch->index / DIGITAL_CHANNELS_PER_POD;
1464 hmo_queue_logic_data(devc, group, data);
1465 }
1466
1467 devc->num_samples = data->len / devc->pod_count;
1468 g_byte_array_free(data, TRUE);
1469 data = NULL;
1470 break;
1471 default:
1472 sr_err("Invalid channel type.");
1473 break;
1474 }
1475
1476 /*
1477 * Advance to the next enabled channel. When data for all enabled
1478 * channels was received, then flush potentially queued logic data,
1479 * and send the "frame end" packet.
1480 */
1481 if (devc->current_channel->next) {
1482 devc->current_channel = devc->current_channel->next;
1483 hmo_request_data(sdi);
1484 return TRUE;
1485 }
1486 hmo_send_logic_packet(sdi, devc);
1487
1488 /*
1489 * Release the logic data storage after each frame. This copes
1490 * with sample counts that differ in length per frame. -- Is
1491 * this a real constraint when acquiring multiple frames with
1492 * identical device settings?
1493 */
1494 hmo_cleanup_logic_data(devc);
1495
1496 packet.type = SR_DF_FRAME_END;
1497 sr_session_send(sdi, &packet);
1498
1499 /*
1500 * End of frame was reached. Stop acquisition after the specified
1501 * number of frames or after the specified number of samples, or
1502 * continue reception by starting over at the first enabled channel.
1503 */
1504 if (++devc->num_frames >= devc->frame_limit || devc->num_samples >= devc->samples_limit) {
1505 sr_dev_acquisition_stop(sdi);
1506 hmo_cleanup_logic_data(devc);
1507 } else {
1508 devc->current_channel = devc->enabled_channels;
1509 hmo_request_data(sdi);
1510 }
1511
1512 return TRUE;
1513}
Hardware access and backend lib