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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2016 mhooijboer <marchelh@gmail.com> | |
5 | * Copyright (C) 2012 Martin Ling <martin-git@earth.li> | |
6 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> | |
7 | * Copyright (C) 2013 Mathias Grimmberger <mgri@zaphod.sax.de> | |
8 | * | |
9 | * This program is free software: you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation, either version 3 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
21 | */ | |
22 | ||
23 | #define _GNU_SOURCE | |
24 | ||
25 | #include <config.h> | |
26 | #include <errno.h> | |
27 | #include <glib.h> | |
28 | #include <math.h> | |
29 | #include <stdlib.h> | |
30 | #include <stdarg.h> | |
31 | #include <string.h> | |
32 | #include <time.h> | |
33 | #include <unistd.h> | |
34 | #include <libsigrok/libsigrok.h> | |
35 | #include "libsigrok-internal.h" | |
36 | #include "scpi.h" | |
37 | #include "protocol.h" | |
38 | ||
39 | /* Set the next event to wait for in siglent_sds_receive(). */ | |
40 | static void siglent_sds_set_wait_event(struct dev_context *devc, enum wait_events event) | |
41 | { | |
42 | if (event == WAIT_STOP) { | |
43 | devc->wait_status = 2; | |
44 | } else { | |
45 | devc->wait_status = 1; | |
46 | devc->wait_event = event; | |
47 | } | |
48 | } | |
49 | ||
50 | /* | |
51 | * Waiting for a event will return a timeout after 2 to 3 seconds in order | |
52 | * to not block the application. | |
53 | */ | |
54 | static int siglent_sds_event_wait(const struct sr_dev_inst *sdi) | |
55 | { | |
56 | char *buf; | |
57 | long s; | |
58 | int out; | |
59 | struct dev_context *devc; | |
60 | time_t start; | |
61 | ||
62 | if (!(devc = sdi->priv)) | |
63 | return SR_ERR; | |
64 | ||
65 | start = time(NULL); | |
66 | ||
67 | s = 10000; /* Sleep time for status refresh. */ | |
68 | if (devc->wait_status == 1) { | |
69 | do { | |
70 | if (time(NULL) - start >= 3) { | |
71 | sr_dbg("Timeout waiting for trigger."); | |
72 | return SR_ERR_TIMEOUT; | |
73 | } | |
74 | ||
75 | if (sr_scpi_get_string(sdi->conn, ":INR?", &buf) != SR_OK) | |
76 | return SR_ERR; | |
77 | sr_atoi(buf, &out); | |
78 | g_usleep(s); | |
79 | } while (out == 0); | |
80 | ||
81 | sr_dbg("Device triggered."); | |
82 | ||
83 | if ((devc->timebase < 0.51) && (devc->timebase > 0.99e-6)) { | |
84 | /* | |
85 | * Timebase * num hor. divs * 85(%) * 1e6(usecs) / 100 | |
86 | * -> 85 percent of sweep time | |
87 | */ | |
88 | s = (devc->timebase * devc->model->series->num_horizontal_divs * 1000); | |
89 | sr_spew("Sleeping for %ld usecs after trigger, " | |
90 | "to let the acq buffer in the device fill", s); | |
91 | g_usleep(s); | |
92 | } | |
93 | } | |
94 | if (devc->wait_status == 2) { | |
95 | do { | |
96 | if (time(NULL) - start >= 3) { | |
97 | sr_dbg("Timeout waiting for trigger."); | |
98 | return SR_ERR_TIMEOUT; | |
99 | } | |
100 | if (sr_scpi_get_string(sdi->conn, ":INR?", &buf) != SR_OK) | |
101 | return SR_ERR; | |
102 | sr_atoi(buf, &out); | |
103 | g_usleep(s); | |
104 | /* XXX | |
105 | * Now this loop condition looks suspicious! A bitwise | |
106 | * OR of a variable and a non-zero literal should be | |
107 | * non-zero. Logical AND of several non-zero values | |
108 | * should be non-zero. Are many parts of the condition | |
109 | * not taking effect? Was some different condition meant | |
110 | * to get encoded? This needs review, and adjustment. | |
111 | */ | |
112 | } while ((out | DEVICE_STATE_TRIG_RDY && out | DEVICE_STATE_DATA_ACQ) && out | DEVICE_STATE_STOPPED); | |
113 | sr_dbg("Device triggerd 2."); | |
114 | siglent_sds_set_wait_event(devc, WAIT_NONE); | |
115 | } | |
116 | ||
117 | return SR_OK; | |
118 | } | |
119 | ||
120 | static int siglent_sds_trigger_wait(const struct sr_dev_inst *sdi) | |
121 | { | |
122 | struct dev_context *devc; | |
123 | ||
124 | if (!(devc = sdi->priv)) | |
125 | return SR_ERR; | |
126 | return siglent_sds_event_wait(sdi); | |
127 | } | |
128 | ||
129 | /* Wait for scope to got to "Stop" in single shot mode. */ | |
130 | static int siglent_sds_stop_wait(const struct sr_dev_inst *sdi) | |
131 | { | |
132 | return siglent_sds_event_wait(sdi); | |
133 | } | |
134 | ||
135 | /* Send a configuration setting. */ | |
136 | SR_PRIV int siglent_sds_config_set(const struct sr_dev_inst *sdi, const char *format, ...) | |
137 | { | |
138 | va_list args; | |
139 | int ret; | |
140 | ||
141 | va_start(args, format); | |
142 | ret = sr_scpi_send_variadic(sdi->conn, format, args); | |
143 | va_end(args); | |
144 | ||
145 | return ret; | |
146 | } | |
147 | ||
148 | /* Start capturing a new frameset. */ | |
149 | SR_PRIV int siglent_sds_capture_start(const struct sr_dev_inst *sdi) | |
150 | { | |
151 | struct dev_context *devc; | |
152 | ||
153 | if (!(devc = sdi->priv)) | |
154 | return SR_ERR; | |
155 | ||
156 | switch (devc->model->series->protocol) { | |
157 | case SPO_MODEL: | |
158 | if (devc->data_source == DATA_SOURCE_SCREEN) { | |
159 | char *buf; | |
160 | int out; | |
161 | ||
162 | sr_dbg("Starting data capture for active frameset %" PRIu64 " of %" PRIu64, | |
163 | devc->num_frames + 1, devc->limit_frames); | |
164 | if (siglent_sds_config_set(sdi, "ARM") != SR_OK) | |
165 | return SR_ERR; | |
166 | if (sr_scpi_get_string(sdi->conn, ":INR?", &buf) != SR_OK) | |
167 | return SR_ERR; | |
168 | sr_atoi(buf, &out); | |
169 | if (out == DEVICE_STATE_TRIG_RDY) { | |
170 | siglent_sds_set_wait_event(devc, WAIT_TRIGGER); | |
171 | } else if (out == DEVICE_STATE_TRIG_RDY + 1) { | |
172 | sr_spew("Device triggered."); | |
173 | siglent_sds_set_wait_event(devc, WAIT_BLOCK); | |
174 | return SR_OK; | |
175 | } else { | |
176 | sr_spew("Device did not enter ARM mode."); | |
177 | return SR_ERR; | |
178 | } | |
179 | } else { /* TODO: Implement history retrieval. */ | |
180 | unsigned int framecount; | |
181 | char buf[200]; | |
182 | int ret; | |
183 | ||
184 | sr_dbg("Starting data capture for history frameset."); | |
185 | if (siglent_sds_config_set(sdi, "FPAR?") != SR_OK) | |
186 | return SR_ERR; | |
187 | ret = sr_scpi_read_data(sdi->conn, buf, 200); | |
188 | if (ret < 0) { | |
189 | sr_err("Read error while reading data header."); | |
190 | return SR_ERR; | |
191 | } | |
192 | memcpy(&framecount, buf + 40, 4); | |
193 | if (devc->limit_frames > framecount) | |
194 | sr_err("Frame limit higher than frames in buffer of device!"); | |
195 | else if (devc->limit_frames == 0) | |
196 | devc->limit_frames = framecount; | |
197 | sr_dbg("Starting data capture for history frameset %" PRIu64 " of %" PRIu64, | |
198 | devc->num_frames + 1, devc->limit_frames); | |
199 | if (siglent_sds_config_set(sdi, "FRAM %i", devc->num_frames + 1) != SR_OK) | |
200 | return SR_ERR; | |
201 | if (siglent_sds_channel_start(sdi) != SR_OK) | |
202 | return SR_ERR; | |
203 | siglent_sds_set_wait_event(devc, WAIT_STOP); | |
204 | } | |
205 | break; | |
206 | case NON_SPO_MODEL: | |
207 | siglent_sds_set_wait_event(devc, WAIT_TRIGGER); | |
208 | break; | |
209 | } | |
210 | ||
211 | return SR_OK; | |
212 | } | |
213 | ||
214 | /* Start reading data from the current channel. */ | |
215 | SR_PRIV int siglent_sds_channel_start(const struct sr_dev_inst *sdi) | |
216 | { | |
217 | struct dev_context *devc; | |
218 | struct sr_channel *ch; | |
219 | ||
220 | if (!(devc = sdi->priv)) | |
221 | return SR_ERR; | |
222 | ||
223 | ch = devc->channel_entry->data; | |
224 | ||
225 | sr_dbg("Starting reading data from channel %d.", ch->index + 1); | |
226 | ||
227 | switch (devc->model->series->protocol) { | |
228 | case NON_SPO_MODEL: | |
229 | case SPO_MODEL: | |
230 | if (ch->type == SR_CHANNEL_LOGIC) { | |
231 | if (sr_scpi_send(sdi->conn, "D%d:WF?", | |
232 | ch->index + 1) != SR_OK) | |
233 | return SR_ERR; | |
234 | } else { | |
235 | if (sr_scpi_send(sdi->conn, "C%d:WF? ALL", | |
236 | ch->index + 1) != SR_OK) | |
237 | return SR_ERR; | |
238 | } | |
239 | siglent_sds_set_wait_event(devc, WAIT_NONE); | |
240 | break; | |
241 | } | |
242 | ||
243 | siglent_sds_set_wait_event(devc, WAIT_BLOCK); | |
244 | ||
245 | devc->num_channel_bytes = 0; | |
246 | devc->num_header_bytes = 0; | |
247 | devc->num_block_bytes = 0; | |
248 | ||
249 | return SR_OK; | |
250 | } | |
251 | ||
252 | /* Read the header of a data block. */ | |
253 | static int siglent_sds_read_header(struct sr_dev_inst *sdi, int channelIndex) | |
254 | { | |
255 | struct sr_scpi_dev_inst *scpi = sdi->conn; | |
256 | struct dev_context *devc = sdi->priv; | |
257 | char *buf = (char *)devc->buffer; | |
258 | int ret, desc_length; | |
259 | int block_offset = 15; /* Offset for descriptor block. */ | |
260 | long dataLength = 0; | |
261 | ||
262 | /* Read header from device. */ | |
263 | ret = sr_scpi_read_data(scpi, buf + devc->num_header_bytes, | |
264 | devc->model->series->buffer_samples); | |
265 | if (ret < 346) { | |
266 | sr_err("Read error while reading data header."); | |
267 | return SR_ERR; | |
268 | } | |
269 | sr_dbg("Device returned %i bytes.", ret); | |
270 | devc->num_header_bytes += ret; | |
271 | buf += block_offset; /* Skip to start descriptor block. */ | |
272 | ||
273 | /* Parse WaveDescriptor header. */ | |
274 | memcpy(&desc_length, buf + 36, 4); /* Descriptor block length */ | |
275 | memcpy(&dataLength, buf + 60, 4); /* Data block length */ | |
276 | ||
277 | devc->vdiv[channelIndex] = 2; | |
278 | devc->vert_offset[channelIndex] = 0; | |
279 | devc->block_header_size = desc_length + 15; | |
280 | ret = dataLength; | |
281 | ||
282 | sr_dbg("Received data block header: '%s' -> block length %d.", buf, ret); | |
283 | ||
284 | return ret; | |
285 | } | |
286 | ||
287 | SR_PRIV int siglent_sds_receive(int fd, int revents, void *cb_data) | |
288 | { | |
289 | struct sr_dev_inst *sdi; | |
290 | struct sr_scpi_dev_inst *scpi; | |
291 | struct dev_context *devc; | |
292 | struct sr_datafeed_packet packet; | |
293 | struct sr_datafeed_analog analog; | |
294 | struct sr_analog_encoding encoding; | |
295 | struct sr_analog_meaning meaning; | |
296 | struct sr_analog_spec spec; | |
297 | struct sr_datafeed_logic logic; | |
298 | int len, i; | |
299 | struct sr_channel *ch; | |
300 | gsize expected_data_bytes = 0; | |
301 | char *memsize; | |
302 | ||
303 | (void)fd; | |
304 | ||
305 | if (!(sdi = cb_data)) | |
306 | return TRUE; | |
307 | ||
308 | if (!(devc = sdi->priv)) | |
309 | return TRUE; | |
310 | ||
311 | scpi = sdi->conn; | |
312 | ||
313 | if (!(revents == G_IO_IN || revents == 0)) | |
314 | return TRUE; | |
315 | ||
316 | memsize = NULL; | |
317 | if (sr_scpi_get_string(sdi->conn, "MSIZ?", &memsize) != SR_OK) | |
318 | return SR_ERR; | |
319 | ||
320 | switch (devc->wait_event) { | |
321 | case WAIT_NONE: | |
322 | break; | |
323 | case WAIT_TRIGGER: | |
324 | if (siglent_sds_trigger_wait(sdi) != SR_OK) | |
325 | return TRUE; | |
326 | if (siglent_sds_channel_start(sdi) != SR_OK) | |
327 | return TRUE; | |
328 | return TRUE; | |
329 | case WAIT_BLOCK: | |
330 | if (siglent_sds_channel_start(sdi) != SR_OK) | |
331 | return TRUE; | |
332 | break; | |
333 | case WAIT_STOP: | |
334 | if (siglent_sds_stop_wait(sdi) != SR_OK) | |
335 | return TRUE; | |
336 | if (siglent_sds_channel_start(sdi) != SR_OK) | |
337 | return TRUE; | |
338 | return TRUE; | |
339 | default: | |
340 | sr_err("BUG: Unknown event target encountered."); | |
341 | break; | |
342 | } | |
343 | ||
344 | ch = devc->channel_entry->data; | |
345 | ||
346 | if (devc->num_block_bytes == 0) { | |
347 | ||
348 | if (g_ascii_strcasecmp(memsize, "14M") == 0) { | |
349 | sr_err("Device memory depth is set to 14Mpts, so please be patient."); | |
350 | g_usleep(4900000); /* Sleep for large memory set. */ | |
351 | } | |
352 | sr_dbg("New block header expected."); | |
353 | len = siglent_sds_read_header(sdi, ch->index); | |
354 | expected_data_bytes = len; | |
355 | if (len == 0) | |
356 | /* Still reading the header. */ | |
357 | return TRUE; | |
358 | if (len == -1) { | |
359 | sr_err("Read error, aborting capture."); | |
360 | packet.type = SR_DF_FRAME_END; | |
361 | sr_session_send(sdi, &packet); | |
362 | sdi->driver->dev_acquisition_stop(sdi); | |
363 | return TRUE; | |
364 | } | |
365 | ||
366 | if (devc->data_source == DATA_SOURCE_SCREEN | |
367 | && (unsigned)len < expected_data_bytes) { | |
368 | sr_dbg("Discarding short data block."); | |
369 | sr_scpi_read_data(scpi, (char *)devc->buffer, len + 1); | |
370 | return TRUE; | |
371 | } | |
372 | devc->num_block_bytes = len; | |
373 | devc->num_block_read = 0; | |
374 | } | |
375 | ||
376 | len = devc->num_block_bytes - devc->num_block_read; | |
377 | if (len > ACQ_BUFFER_SIZE) | |
378 | len = ACQ_BUFFER_SIZE; | |
379 | ||
380 | /* Offset the data block buffer past the IEEE header and description header. */ | |
381 | devc->buffer += devc->block_header_size; | |
382 | ||
383 | if (len == -1) { | |
384 | sr_err("Read error, aborting capture."); | |
385 | packet.type = SR_DF_FRAME_END; | |
386 | sr_session_send(sdi, &packet); | |
387 | sdi->driver->dev_acquisition_stop(sdi); | |
388 | return TRUE; | |
389 | } | |
390 | ||
391 | sr_dbg("Received %d bytes.", len); | |
392 | ||
393 | devc->num_block_read += len; | |
394 | ||
395 | if (ch->type == SR_CHANNEL_ANALOG) { | |
396 | float vdiv = devc->vdiv[ch->index]; | |
397 | float offset = devc->vert_offset[ch->index]; | |
398 | GArray *float_data; | |
399 | static GArray *data; | |
400 | float voltage, vdivlog; | |
401 | int digits; | |
402 | ||
403 | data = g_array_sized_new(FALSE, FALSE, sizeof(uint8_t), len); | |
404 | g_array_append_vals(data, devc->buffer, len); | |
405 | float_data = g_array_new(FALSE, FALSE, sizeof(float)); | |
406 | for (i = 0; i < len; i++) { | |
407 | voltage = (float)g_array_index(data, int8_t, i) / 25; | |
408 | voltage = ((vdiv * voltage) - offset); | |
409 | g_array_append_val(float_data, voltage); | |
410 | } | |
411 | vdivlog = log10f(vdiv); | |
412 | digits = -(int) vdivlog + (vdivlog < 0.0); | |
413 | sr_analog_init(&analog, &encoding, &meaning, &spec, digits); | |
414 | analog.meaning->channels = g_slist_append(NULL, ch); | |
415 | analog.num_samples = float_data->len; | |
416 | analog.data = (float *)float_data->data; | |
417 | analog.meaning->mq = SR_MQ_VOLTAGE; | |
418 | analog.meaning->unit = SR_UNIT_VOLT; | |
419 | analog.meaning->mqflags = 0; | |
420 | packet.type = SR_DF_ANALOG; | |
421 | packet.payload = &analog; | |
422 | sr_session_send(sdi, &packet); | |
423 | g_slist_free(analog.meaning->channels); | |
424 | g_array_free(data, TRUE); | |
425 | } else { | |
426 | logic.length = len; | |
427 | logic.unitsize = 1; | |
428 | logic.data = devc->buffer; | |
429 | packet.type = SR_DF_LOGIC; | |
430 | packet.payload = &logic; | |
431 | sr_session_send(sdi, &packet); | |
432 | } | |
433 | ||
434 | if (devc->num_block_read == devc->num_block_bytes) { | |
435 | sr_dbg("Block has been completed."); | |
436 | sr_dbg("Preparing for possible next block."); | |
437 | devc->num_header_bytes = 0; | |
438 | devc->num_block_bytes = 0; | |
439 | if (devc->data_source != DATA_SOURCE_SCREEN) | |
440 | siglent_sds_set_wait_event(devc, WAIT_BLOCK); | |
441 | if (!sr_scpi_read_complete(scpi)) { | |
442 | sr_err("Read should have been completed."); | |
443 | packet.type = SR_DF_FRAME_END; | |
444 | sr_session_send(sdi, &packet); | |
445 | sdi->driver->dev_acquisition_stop(sdi); | |
446 | return TRUE; | |
447 | } | |
448 | devc->num_block_read = 0; | |
449 | } else { | |
450 | sr_dbg("%" PRIu64 " of %" PRIu64 " block bytes read.", | |
451 | devc->num_block_read, devc->num_block_bytes); | |
452 | } | |
453 | devc->num_channel_bytes += len; | |
454 | if (devc->num_channel_bytes < expected_data_bytes) { | |
455 | /* Don't have the full data for this channel yet, re-run. */ | |
456 | return TRUE; | |
457 | } | |
458 | if (devc->channel_entry->next) { | |
459 | /* We got the frame for this channel, now get the next channel. */ | |
460 | devc->channel_entry = devc->channel_entry->next; | |
461 | siglent_sds_channel_start(sdi); | |
462 | } else { | |
463 | /* Done with this frame. */ | |
464 | packet.type = SR_DF_FRAME_END; | |
465 | sr_session_send(sdi, &packet); | |
466 | ||
467 | if (++devc->num_frames == devc->limit_frames) { | |
468 | /* Last frame, stop capture. */ | |
469 | sdi->driver->dev_acquisition_stop(sdi); | |
470 | } else { | |
471 | /* Get the next frame, starting with the first channel. */ | |
472 | devc->channel_entry = devc->enabled_channels; | |
473 | siglent_sds_capture_start(sdi); | |
474 | ||
475 | /* Start of next frame. */ | |
476 | packet.type = SR_DF_FRAME_BEGIN; | |
477 | sr_session_send(sdi, &packet); | |
478 | } | |
479 | } | |
480 | ||
481 | return TRUE; | |
482 | } | |
483 | ||
484 | SR_PRIV int siglent_sds_get_dev_cfg(const struct sr_dev_inst *sdi) | |
485 | { | |
486 | struct dev_context *devc; | |
487 | struct sr_channel *ch; | |
488 | char *cmd, *response; | |
489 | unsigned int i; | |
490 | int res, num_tokens; | |
491 | gchar **tokens; | |
492 | ||
493 | devc = sdi->priv; | |
494 | ||
495 | /* Analog channel state. */ | |
496 | for (i = 0; i < devc->model->analog_channels; i++) { | |
497 | cmd = g_strdup_printf("C%i:TRA?", i + 1); | |
498 | res = sr_scpi_get_bool(sdi->conn, cmd, &devc->analog_channels[i]); | |
499 | g_free(cmd); | |
500 | if (res != SR_OK) | |
501 | return SR_ERR; | |
502 | ch = g_slist_nth_data(sdi->channels, i); | |
503 | ch->enabled = devc->analog_channels[i]; | |
504 | } | |
505 | sr_dbg("Current analog channel state:"); | |
506 | for (i = 0; i < devc->model->analog_channels; i++) | |
507 | sr_dbg("CH%d %s", i + 1, devc->analog_channels[i] ? "On" : "Off"); | |
508 | ||
509 | /* Digital channel state. */ | |
510 | if (devc->model->has_digital) { | |
511 | gboolean status; | |
512 | ||
513 | sr_dbg("Check logic analyzer channel state."); | |
514 | devc->la_enabled = FALSE; | |
515 | cmd = g_strdup_printf("DGST?"); | |
516 | res = sr_scpi_get_bool(sdi->conn, cmd, &status); | |
517 | g_free(cmd); | |
518 | if (res != SR_OK) | |
519 | return SR_ERR; | |
520 | sr_dbg("Logic analyzer status: %s", status ? "On" : "Off"); | |
521 | if (status) { | |
522 | devc->la_enabled = TRUE; | |
523 | for (i = 0; i < ARRAY_SIZE(devc->digital_channels); i++) { | |
524 | cmd = g_strdup_printf("D%i:DGCH?", i); | |
525 | res = sr_scpi_get_bool(sdi->conn, cmd, &devc->digital_channels[i]); | |
526 | g_free(cmd); | |
527 | if (res != SR_OK) | |
528 | return SR_ERR; | |
529 | ch = g_slist_nth_data(sdi->channels, i + devc->model->analog_channels); | |
530 | ch->enabled = devc->digital_channels[i]; | |
531 | sr_dbg("D%d: %s", i, devc->digital_channels[i] ? "On" : "Off"); | |
532 | } | |
533 | } else { | |
534 | for (i = 0; i < ARRAY_SIZE(devc->digital_channels); i++) { | |
535 | ch = g_slist_nth_data(sdi->channels, i + devc->model->analog_channels); | |
536 | devc->digital_channels[i] = FALSE; | |
537 | ch->enabled = devc->digital_channels[i]; | |
538 | sr_dbg("D%d: %s", i, devc->digital_channels[i] ? "On" : "Off"); | |
539 | } | |
540 | } | |
541 | } | |
542 | ||
543 | /* Timebase. */ | |
544 | if (sr_scpi_get_float(sdi->conn, ":TDIV?", &devc->timebase) != SR_OK) | |
545 | return SR_ERR; | |
546 | sr_dbg("Current timebase: %g.", devc->timebase); | |
547 | ||
548 | /* Probe attenuation. */ | |
549 | for (i = 0; i < devc->model->analog_channels; i++) { | |
550 | cmd = g_strdup_printf("C%d:ATTN?", i + 1); | |
551 | res = sr_scpi_get_float(sdi->conn, cmd, &devc->attenuation[i]); | |
552 | g_free(cmd); | |
553 | if (res != SR_OK) | |
554 | return SR_ERR; | |
555 | } | |
556 | sr_dbg("Current probe attenuation:"); | |
557 | for (i = 0; i < devc->model->analog_channels; i++) | |
558 | sr_dbg("CH%d %g", i + 1, devc->attenuation[i]); | |
559 | ||
560 | /* Vertical gain and offset. */ | |
561 | if (siglent_sds_get_dev_cfg_vertical(sdi) != SR_OK) | |
562 | return SR_ERR; | |
563 | ||
564 | /* Coupling. */ | |
565 | for (i = 0; i < devc->model->analog_channels; i++) { | |
566 | cmd = g_strdup_printf("C%d:CPL?", i + 1); | |
567 | res = sr_scpi_get_string(sdi->conn, cmd, &devc->coupling[i]); | |
568 | g_free(cmd); | |
569 | if (res != SR_OK) | |
570 | return SR_ERR; | |
571 | } | |
572 | ||
573 | sr_dbg("Current coupling:"); | |
574 | for (i = 0; i < devc->model->analog_channels; i++) | |
575 | sr_dbg("CH%d %s", i + 1, devc->coupling[i]); | |
576 | ||
577 | /* Trigger source. */ | |
578 | response = NULL; | |
579 | tokens = NULL; | |
580 | if (sr_scpi_get_string(sdi->conn, "TRSE?", &response) != SR_OK) | |
581 | return SR_ERR; | |
582 | tokens = g_strsplit(response, ",", 0); | |
583 | for (num_tokens = 0; tokens[num_tokens] != NULL; num_tokens++); | |
584 | if (num_tokens < 4) { | |
585 | sr_dbg("IDN response not according to spec: %80.s.", response); | |
586 | g_strfreev(tokens); | |
587 | g_free(response); | |
588 | return SR_ERR_DATA; | |
589 | } | |
590 | g_free(response); | |
591 | devc->trigger_source = g_strstrip(g_strdup(tokens[2])); | |
592 | sr_dbg("Current trigger source: %s.", devc->trigger_source); | |
593 | ||
594 | /* TODO: Horizontal trigger position. */ | |
595 | ||
596 | devc->horiz_triggerpos = 0; | |
597 | sr_dbg("Current horizontal trigger position: %g.", devc->horiz_triggerpos); | |
598 | ||
599 | /* Trigger slope. */ | |
600 | cmd = g_strdup_printf("%s:TRSL?", devc->trigger_source); | |
601 | res = sr_scpi_get_string(sdi->conn, cmd, &devc->trigger_slope); | |
602 | g_free(cmd); | |
603 | if (res != SR_OK) | |
604 | return SR_ERR; | |
605 | sr_dbg("Current trigger slope: %s.", devc->trigger_slope); | |
606 | ||
607 | /* Trigger level. */ | |
608 | cmd = g_strdup_printf("%s:TRLV?", devc->trigger_source); | |
609 | res = sr_scpi_get_float(sdi->conn, cmd, &devc->trigger_level); | |
610 | g_free(cmd); | |
611 | if (res != SR_OK) | |
612 | return SR_ERR; | |
613 | sr_dbg("Current trigger level: %g.", devc->trigger_level); | |
614 | return SR_OK; | |
615 | } | |
616 | ||
617 | SR_PRIV int siglent_sds_get_dev_cfg_vertical(const struct sr_dev_inst *sdi) | |
618 | { | |
619 | struct dev_context *devc; | |
620 | char *cmd; | |
621 | unsigned int i; | |
622 | int res; | |
623 | ||
624 | devc = sdi->priv; | |
625 | ||
626 | /* Vertical gain. */ | |
627 | for (i = 0; i < devc->model->analog_channels; i++) { | |
628 | cmd = g_strdup_printf("C%d:VDIV?", i + 1); | |
629 | res = sr_scpi_get_float(sdi->conn, cmd, &devc->vdiv[i]); | |
630 | g_free(cmd); | |
631 | if (res != SR_OK) | |
632 | return SR_ERR; | |
633 | } | |
634 | sr_dbg("Current vertical gain:"); | |
635 | for (i = 0; i < devc->model->analog_channels; i++) | |
636 | sr_dbg("CH%d %g", i + 1, devc->vdiv[i]); | |
637 | ||
638 | /* Vertical offset. */ | |
639 | for (i = 0; i < devc->model->analog_channels; i++) { | |
640 | cmd = g_strdup_printf("C%d:OFST?", i + 1); | |
641 | res = sr_scpi_get_float(sdi->conn, cmd, &devc->vert_offset[i]); | |
642 | g_free(cmd); | |
643 | if (res != SR_OK) | |
644 | return SR_ERR; | |
645 | } | |
646 | sr_dbg("Current vertical offset:"); | |
647 | for (i = 0; i < devc->model->analog_channels; i++) | |
648 | sr_dbg("CH%d %g", i + 1, devc->vert_offset[i]); | |
649 | ||
650 | return SR_OK; | |
651 | } | |
652 | ||
653 | SR_PRIV int siglent_sds_get_dev_cfg_horizontal(const struct sr_dev_inst *sdi) | |
654 | { | |
655 | struct dev_context *devc; | |
656 | char *cmd; | |
657 | int res; | |
658 | char *sample_points_string; | |
659 | float samplerate_scope, fvalue; | |
660 | char *first, *concat; | |
661 | ||
662 | devc = sdi->priv; | |
663 | cmd = g_strdup_printf("SANU? C1"); | |
664 | res = sr_scpi_get_string(sdi->conn, cmd, &sample_points_string); | |
665 | g_free(cmd); | |
666 | if (res != SR_OK) | |
667 | return SR_ERR; | |
668 | if (g_strstr_len(sample_points_string, -1, "Mpts") != NULL) { | |
669 | sample_points_string[strlen(sample_points_string) - 4] = '\0'; | |
670 | ||
671 | if (g_strstr_len(sample_points_string, -1, ".") != NULL) { | |
672 | first = strtok(sample_points_string, "."); | |
673 | concat = strcat(first, strtok(NULL, ".")); | |
674 | if (sr_atof_ascii(concat, &fvalue) != SR_OK || fvalue == 0.0) { | |
675 | sr_dbg("Invalid float converted from scope response."); | |
676 | return SR_ERR; | |
677 | } | |
678 | } else { | |
679 | if (sr_atof_ascii(sample_points_string, &fvalue) != SR_OK || fvalue == 0.0) { | |
680 | sr_dbg("Invalid float converted from scope response."); | |
681 | return SR_ERR; | |
682 | } | |
683 | } | |
684 | samplerate_scope = fvalue * 100000; | |
685 | } else { | |
686 | sample_points_string[strlen(sample_points_string) - 4] = '\0'; | |
687 | if (sr_atof_ascii(sample_points_string, &fvalue) != SR_OK || fvalue == 0.0) { | |
688 | sr_dbg("Invalid float converted from scope response."); | |
689 | return SR_ERR; | |
690 | } | |
691 | samplerate_scope = fvalue * 1000; | |
692 | } | |
693 | /* Get the timebase. */ | |
694 | if (sr_scpi_get_float(sdi->conn, ":TDIV?", &devc->timebase) != SR_OK) | |
695 | return SR_ERR; | |
696 | sr_dbg("Current timebase: %g.", devc->timebase); | |
697 | devc->samplerate = samplerate_scope / (devc->timebase * devc->model->series->num_horizontal_divs); | |
698 | ||
699 | return SR_OK; | |
700 | } |