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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) | |
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 data_length = 0; | |
261 | ||
262 | /* Read header from device. */ | |
263 | ret = sr_scpi_read_data(scpi, buf, SIGLENT_HEADER_SIZE); | |
264 | if (ret < SIGLENT_HEADER_SIZE) { | |
265 | sr_err("Read error while reading data header."); | |
266 | return SR_ERR; | |
267 | } | |
268 | sr_dbg("Device returned %i bytes.", ret); | |
269 | devc->num_header_bytes += ret; | |
270 | buf += block_offset; /* Skip to start descriptor block. */ | |
271 | ||
272 | /* Parse WaveDescriptor header. */ | |
273 | memcpy(&desc_length, buf + 36, 4); /* Descriptor block length */ | |
274 | memcpy(&data_length, buf + 60, 4); /* Data block length */ | |
275 | ||
276 | devc->block_header_size = desc_length + 15; | |
277 | devc->num_samples = data_length; | |
278 | ||
279 | sr_dbg("Received data block header: '%s' -> block length %d.", buf, ret); | |
280 | ||
281 | return ret; | |
282 | } | |
283 | ||
284 | SR_PRIV int siglent_sds_receive(int fd, int revents, void *cb_data) | |
285 | { | |
286 | struct sr_dev_inst *sdi; | |
287 | struct sr_scpi_dev_inst *scpi; | |
288 | struct dev_context *devc; | |
289 | struct sr_datafeed_packet packet; | |
290 | struct sr_datafeed_analog analog; | |
291 | struct sr_analog_encoding encoding; | |
292 | struct sr_analog_meaning meaning; | |
293 | struct sr_analog_spec spec; | |
294 | struct sr_datafeed_logic logic; | |
295 | int len, i; | |
296 | struct sr_channel *ch; | |
297 | ||
298 | (void)fd; | |
299 | ||
300 | if (!(sdi = cb_data)) | |
301 | return TRUE; | |
302 | ||
303 | if (!(devc = sdi->priv)) | |
304 | return TRUE; | |
305 | ||
306 | scpi = sdi->conn; | |
307 | ||
308 | if (!(revents == G_IO_IN || revents == 0)) | |
309 | return TRUE; | |
310 | ||
311 | switch (devc->wait_event) { | |
312 | case WAIT_NONE: | |
313 | break; | |
314 | case WAIT_TRIGGER: | |
315 | if (siglent_sds_trigger_wait(sdi) != SR_OK) | |
316 | return TRUE; | |
317 | if (siglent_sds_channel_start(sdi) != SR_OK) | |
318 | return TRUE; | |
319 | return TRUE; | |
320 | case WAIT_BLOCK: | |
321 | if (siglent_sds_channel_start(sdi) != SR_OK) | |
322 | return TRUE; | |
323 | break; | |
324 | case WAIT_STOP: | |
325 | if (siglent_sds_stop_wait(sdi) != SR_OK) | |
326 | return TRUE; | |
327 | if (siglent_sds_channel_start(sdi) != SR_OK) | |
328 | return TRUE; | |
329 | return TRUE; | |
330 | default: | |
331 | sr_err("BUG: Unknown event target encountered."); | |
332 | break; | |
333 | } | |
334 | ch = devc->channel_entry->data; | |
335 | len = 0; | |
336 | ||
337 | if (devc->num_block_bytes == 0) { | |
338 | if (devc->memory_depth >= 14000000) { | |
339 | sr_err("Device memory depth is set to 14Mpts, so please be patient."); | |
340 | g_usleep(4900000); /* Sleep for large memory set. */ | |
341 | } | |
342 | if (sr_scpi_read_begin(scpi) != SR_OK) | |
343 | return TRUE; | |
344 | sr_dbg("New block header expected."); | |
345 | len = siglent_sds_read_header(sdi); | |
346 | if (len == 0) | |
347 | /* Still reading the header. */ | |
348 | return TRUE; | |
349 | if (len == -1) { | |
350 | sr_err("Read error, aborting capture."); | |
351 | packet.type = SR_DF_FRAME_END; | |
352 | sr_session_send(sdi, &packet); | |
353 | sdi->driver->dev_acquisition_stop(sdi); | |
354 | return TRUE; | |
355 | } | |
356 | devc->num_block_bytes = 0; | |
357 | devc->num_block_read = 0; | |
358 | } | |
359 | ||
360 | if (len == -1) { | |
361 | sr_err("Read error, aborting capture."); | |
362 | packet.type = SR_DF_FRAME_END; | |
363 | sr_session_send(sdi, &packet); | |
364 | sdi->driver->dev_acquisition_stop(sdi); | |
365 | return TRUE; | |
366 | } | |
367 | ||
368 | while (devc->num_block_bytes < devc->num_samples) { | |
369 | len = sr_scpi_read_data(scpi, (char *)devc->buffer, devc->num_samples); | |
370 | if (len == -1) { | |
371 | sr_err("Read error, aborting capture."); | |
372 | packet.type = SR_DF_FRAME_END; | |
373 | sr_session_send(sdi, &packet); | |
374 | sdi->driver->dev_acquisition_stop(sdi); | |
375 | return TRUE; | |
376 | } | |
377 | devc->num_block_read += 1; | |
378 | devc->num_block_bytes += len; | |
379 | if (devc->num_block_bytes >= devc->num_samples ) { | |
380 | /* Offset the data block buffer past the IEEE header and description header. */ | |
381 | devc->buffer += devc->block_header_size; | |
382 | len = devc->num_samples; | |
383 | } | |
384 | sr_dbg("Received block: %i, %d bytes.", devc->num_block_read, len); | |
385 | if (ch->type == SR_CHANNEL_ANALOG) { | |
386 | float vdiv = devc->vdiv[ch->index]; | |
387 | float offset = devc->vert_offset[ch->index]; | |
388 | GArray *float_data; | |
389 | static GArray *data; | |
390 | float voltage, vdivlog; | |
391 | int digits; | |
392 | ||
393 | data = g_array_sized_new(FALSE, FALSE, sizeof(uint8_t), len); | |
394 | g_array_append_vals(data, devc->buffer, len); | |
395 | float_data = g_array_new(FALSE, FALSE, sizeof(float)); | |
396 | for (i = 0; i < len; i++) { | |
397 | voltage = (float)g_array_index(data, int8_t, i) / 25; | |
398 | voltage = ((vdiv * voltage) - offset); | |
399 | g_array_append_val(float_data, voltage); | |
400 | } | |
401 | vdivlog = log10f(vdiv); | |
402 | digits = -(int) vdivlog + (vdivlog < 0.0); | |
403 | sr_analog_init(&analog, &encoding, &meaning, &spec, digits); | |
404 | analog.meaning->channels = g_slist_append(NULL, ch); | |
405 | analog.num_samples = float_data->len; | |
406 | analog.data = (float *)float_data->data; | |
407 | analog.meaning->mq = SR_MQ_VOLTAGE; | |
408 | analog.meaning->unit = SR_UNIT_VOLT; | |
409 | analog.meaning->mqflags = 0; | |
410 | packet.type = SR_DF_ANALOG; | |
411 | packet.payload = &analog; | |
412 | sr_session_send(sdi, &packet); | |
413 | g_slist_free(analog.meaning->channels); | |
414 | g_array_free(data, TRUE); | |
415 | } else { | |
416 | logic.length = len; | |
417 | logic.unitsize = 1; | |
418 | logic.data = devc->buffer; | |
419 | packet.type = SR_DF_LOGIC; | |
420 | packet.payload = &logic; | |
421 | sr_session_send(sdi, &packet); | |
422 | } | |
423 | ||
424 | if (devc->num_samples == devc->num_block_bytes) { | |
425 | sr_dbg("Transfer has been completed."); | |
426 | devc->num_header_bytes = 0; | |
427 | devc->num_block_bytes = 0; | |
428 | if (!sr_scpi_read_complete(scpi)) { | |
429 | sr_err("Read should have been completed."); | |
430 | packet.type = SR_DF_FRAME_END; | |
431 | sr_session_send(sdi, &packet); | |
432 | sdi->driver->dev_acquisition_stop(sdi); | |
433 | return TRUE; | |
434 | } | |
435 | devc->num_block_read = 0; | |
436 | } else { | |
437 | sr_dbg("%" PRIu64 " of %" PRIu64 " block bytes read.", | |
438 | devc->num_block_bytes, devc->num_samples); | |
439 | } | |
440 | } | |
441 | ||
442 | if (devc->channel_entry->next) { | |
443 | /* We got the frame for this channel, now get the next channel. */ | |
444 | devc->channel_entry = devc->channel_entry->next; | |
445 | siglent_sds_channel_start(sdi); | |
446 | } else { | |
447 | /* Done with this frame. */ | |
448 | packet.type = SR_DF_FRAME_END; | |
449 | sr_session_send(sdi, &packet); | |
450 | ||
451 | if (++devc->num_frames == devc->limit_frames) { | |
452 | /* Last frame, stop capture. */ | |
453 | sdi->driver->dev_acquisition_stop(sdi); | |
454 | } else { | |
455 | /* Get the next frame, starting with the first channel. */ | |
456 | devc->channel_entry = devc->enabled_channels; | |
457 | siglent_sds_capture_start(sdi); | |
458 | ||
459 | /* Start of next frame. */ | |
460 | packet.type = SR_DF_FRAME_BEGIN; | |
461 | sr_session_send(sdi, &packet); | |
462 | } | |
463 | } | |
464 | ||
465 | return TRUE; | |
466 | } | |
467 | ||
468 | SR_PRIV int siglent_sds_get_dev_cfg(const struct sr_dev_inst *sdi) | |
469 | { | |
470 | struct dev_context *devc; | |
471 | struct sr_channel *ch; | |
472 | char *cmd, *response; | |
473 | unsigned int i; | |
474 | int res, num_tokens; | |
475 | gchar **tokens; | |
476 | int len; | |
477 | float trigger_pos; | |
478 | ||
479 | devc = sdi->priv; | |
480 | ||
481 | /* Analog channel state. */ | |
482 | for (i = 0; i < devc->model->analog_channels; i++) { | |
483 | cmd = g_strdup_printf("C%i:TRA?", i + 1); | |
484 | res = sr_scpi_get_bool(sdi->conn, cmd, &devc->analog_channels[i]); | |
485 | g_free(cmd); | |
486 | if (res != SR_OK) | |
487 | return SR_ERR; | |
488 | ch = g_slist_nth_data(sdi->channels, i); | |
489 | ch->enabled = devc->analog_channels[i]; | |
490 | } | |
491 | sr_dbg("Current analog channel state:"); | |
492 | for (i = 0; i < devc->model->analog_channels; i++) | |
493 | sr_dbg("CH%d %s", i + 1, devc->analog_channels[i] ? "On" : "Off"); | |
494 | ||
495 | /* Digital channel state. */ | |
496 | if (devc->model->has_digital) { | |
497 | gboolean status; | |
498 | ||
499 | sr_dbg("Check logic analyzer channel state."); | |
500 | devc->la_enabled = FALSE; | |
501 | cmd = g_strdup_printf("DGST?"); | |
502 | res = sr_scpi_get_bool(sdi->conn, cmd, &status); | |
503 | g_free(cmd); | |
504 | if (res != SR_OK) | |
505 | return SR_ERR; | |
506 | sr_dbg("Logic analyzer status: %s", status ? "On" : "Off"); | |
507 | if (status) { | |
508 | devc->la_enabled = TRUE; | |
509 | for (i = 0; i < ARRAY_SIZE(devc->digital_channels); i++) { | |
510 | cmd = g_strdup_printf("D%i:DGCH?", i); | |
511 | res = sr_scpi_get_bool(sdi->conn, cmd, &devc->digital_channels[i]); | |
512 | g_free(cmd); | |
513 | if (res != SR_OK) | |
514 | return SR_ERR; | |
515 | ch = g_slist_nth_data(sdi->channels, i + devc->model->analog_channels); | |
516 | ch->enabled = devc->digital_channels[i]; | |
517 | sr_dbg("D%d: %s", i, devc->digital_channels[i] ? "On" : "Off"); | |
518 | } | |
519 | } else { | |
520 | for (i = 0; i < ARRAY_SIZE(devc->digital_channels); i++) { | |
521 | ch = g_slist_nth_data(sdi->channels, i + devc->model->analog_channels); | |
522 | devc->digital_channels[i] = FALSE; | |
523 | ch->enabled = devc->digital_channels[i]; | |
524 | sr_dbg("D%d: %s", i, devc->digital_channels[i] ? "On" : "Off"); | |
525 | } | |
526 | } | |
527 | } | |
528 | ||
529 | /* Timebase. */ | |
530 | if (sr_scpi_get_float(sdi->conn, ":TDIV?", &devc->timebase) != SR_OK) | |
531 | return SR_ERR; | |
532 | sr_dbg("Current timebase: %g.", devc->timebase); | |
533 | ||
534 | /* Probe attenuation. */ | |
535 | for (i = 0; i < devc->model->analog_channels; i++) { | |
536 | cmd = g_strdup_printf("C%d:ATTN?", i + 1); | |
537 | res = sr_scpi_get_float(sdi->conn, cmd, &devc->attenuation[i]); | |
538 | g_free(cmd); | |
539 | if (res != SR_OK) | |
540 | return SR_ERR; | |
541 | } | |
542 | sr_dbg("Current probe attenuation:"); | |
543 | for (i = 0; i < devc->model->analog_channels; i++) | |
544 | sr_dbg("CH%d %g", i + 1, devc->attenuation[i]); | |
545 | ||
546 | /* Vertical gain and offset. */ | |
547 | if (siglent_sds_get_dev_cfg_vertical(sdi) != SR_OK) | |
548 | return SR_ERR; | |
549 | ||
550 | /* Coupling. */ | |
551 | for (i = 0; i < devc->model->analog_channels; i++) { | |
552 | cmd = g_strdup_printf("C%d:CPL?", i + 1); | |
553 | res = sr_scpi_get_string(sdi->conn, cmd, &devc->coupling[i]); | |
554 | g_free(cmd); | |
555 | if (res != SR_OK) | |
556 | return SR_ERR; | |
557 | } | |
558 | ||
559 | sr_dbg("Current coupling:"); | |
560 | for (i = 0; i < devc->model->analog_channels; i++) | |
561 | sr_dbg("CH%d %s", i + 1, devc->coupling[i]); | |
562 | ||
563 | /* Trigger source. */ | |
564 | response = NULL; | |
565 | tokens = NULL; | |
566 | if (sr_scpi_get_string(sdi->conn, "TRSE?", &response) != SR_OK) | |
567 | return SR_ERR; | |
568 | tokens = g_strsplit(response, ",", 0); | |
569 | for (num_tokens = 0; tokens[num_tokens] != NULL; num_tokens++); | |
570 | if (num_tokens < 4) { | |
571 | sr_dbg("IDN response not according to spec: %80.s.", response); | |
572 | g_strfreev(tokens); | |
573 | g_free(response); | |
574 | return SR_ERR_DATA; | |
575 | } | |
576 | g_free(response); | |
577 | devc->trigger_source = g_strstrip(g_strdup(tokens[2])); | |
578 | sr_dbg("Current trigger source: %s.", devc->trigger_source); | |
579 | ||
580 | /* TODO: Horizontal trigger position. */ | |
581 | response = ""; | |
582 | trigger_pos = 0; | |
583 | if (sr_scpi_get_string(sdi->conn, g_strdup_printf("%s:TRDL?", devc->trigger_source), &response) != SR_OK) | |
584 | return SR_ERR; | |
585 | len = strlen(response); | |
586 | if (!g_ascii_strcasecmp(response + (len - 2), "us")) { | |
587 | trigger_pos = atof(response) / SR_GHZ(1); | |
588 | sr_dbg("Current trigger position us %s.", response); | |
589 | } else if (!g_ascii_strcasecmp(response + (len - 2), "ns")) { | |
590 | trigger_pos = atof(response) / SR_MHZ(1); | |
591 | sr_dbg("Current trigger position ms %s.", response); | |
592 | } else if (!g_ascii_strcasecmp(response + (len - 2), "ms")) { | |
593 | trigger_pos = atof(response) / SR_KHZ(1); | |
594 | sr_dbg("Current trigger position ns %s.", response); | |
595 | } else if (!g_ascii_strcasecmp(response + (len - 2), "s")) { | |
596 | trigger_pos = atof(response); | |
597 | sr_dbg("Current trigger position s %s.", response); | |
598 | }; | |
599 | devc->horiz_triggerpos = trigger_pos; | |
600 | ||
601 | sr_dbg("Current horizontal trigger position %.10f", devc->horiz_triggerpos); | |
602 | ||
603 | /* Trigger slope. */ | |
604 | cmd = g_strdup_printf("%s:TRSL?", devc->trigger_source); | |
605 | res = sr_scpi_get_string(sdi->conn, cmd, &devc->trigger_slope); | |
606 | g_free(cmd); | |
607 | if (res != SR_OK) | |
608 | return SR_ERR; | |
609 | sr_dbg("Current trigger slope: %s.", devc->trigger_slope); | |
610 | ||
611 | /* Trigger level. */ | |
612 | cmd = g_strdup_printf("%s:TRLV?", devc->trigger_source); | |
613 | res = sr_scpi_get_float(sdi->conn, cmd, &devc->trigger_level); | |
614 | g_free(cmd); | |
615 | if (res != SR_OK) | |
616 | return SR_ERR; | |
617 | sr_dbg("Current trigger level: %g.", devc->trigger_level); | |
618 | return SR_OK; | |
619 | } | |
620 | ||
621 | SR_PRIV int siglent_sds_get_dev_cfg_vertical(const struct sr_dev_inst *sdi) | |
622 | { | |
623 | struct dev_context *devc; | |
624 | char *cmd; | |
625 | unsigned int i; | |
626 | int res; | |
627 | ||
628 | devc = sdi->priv; | |
629 | ||
630 | /* Vertical gain. */ | |
631 | for (i = 0; i < devc->model->analog_channels; i++) { | |
632 | cmd = g_strdup_printf("C%d:VDIV?", i + 1); | |
633 | res = sr_scpi_get_float(sdi->conn, cmd, &devc->vdiv[i]); | |
634 | g_free(cmd); | |
635 | if (res != SR_OK) | |
636 | return SR_ERR; | |
637 | } | |
638 | sr_dbg("Current vertical gain:"); | |
639 | for (i = 0; i < devc->model->analog_channels; i++) | |
640 | sr_dbg("CH%d %g", i + 1, devc->vdiv[i]); | |
641 | ||
642 | /* Vertical offset. */ | |
643 | for (i = 0; i < devc->model->analog_channels; i++) { | |
644 | cmd = g_strdup_printf("C%d:OFST?", i + 1); | |
645 | res = sr_scpi_get_float(sdi->conn, cmd, &devc->vert_offset[i]); | |
646 | g_free(cmd); | |
647 | if (res != SR_OK) | |
648 | return SR_ERR; | |
649 | } | |
650 | sr_dbg("Current vertical offset:"); | |
651 | for (i = 0; i < devc->model->analog_channels; i++) | |
652 | sr_dbg("CH%d %g", i + 1, devc->vert_offset[i]); | |
653 | ||
654 | return SR_OK; | |
655 | } | |
656 | ||
657 | SR_PRIV int siglent_sds_get_dev_cfg_horizontal(const struct sr_dev_inst *sdi) | |
658 | { | |
659 | struct dev_context *devc; | |
660 | char *cmd; | |
661 | int res; | |
662 | char *sample_points_string; | |
663 | float samplerate_scope, fvalue; | |
664 | ||
665 | devc = sdi->priv; | |
666 | cmd = g_strdup_printf("SANU? C1"); | |
667 | res = sr_scpi_get_string(sdi->conn, cmd, &sample_points_string); | |
668 | g_free(cmd); | |
669 | samplerate_scope = 0; | |
670 | fvalue = 0; | |
671 | if (res != SR_OK) | |
672 | return SR_ERR; | |
673 | ||
674 | if (g_strstr_len(sample_points_string, -1, "Mpts") != NULL) { | |
675 | sample_points_string[strlen(sample_points_string) -4] = '\0'; | |
676 | if (sr_atof_ascii(sample_points_string, &fvalue) != SR_OK) { | |
677 | sr_dbg("Invalid float converted from scope response."); | |
678 | return SR_ERR; | |
679 | } | |
680 | samplerate_scope = fvalue * 1000000; | |
681 | } else if (g_strstr_len(sample_points_string, -1, "Kpts") != NULL){ | |
682 | sample_points_string[strlen(sample_points_string) -4] = '\0'; | |
683 | if (sr_atof_ascii(sample_points_string, &fvalue) != SR_OK) { | |
684 | sr_dbg("Invalid float converted from scope response."); | |
685 | return SR_ERR; | |
686 | } | |
687 | samplerate_scope = fvalue * 10000; | |
688 | } else { | |
689 | samplerate_scope = fvalue; | |
690 | } | |
691 | g_free(sample_points_string); | |
692 | /* Get the timebase. */ | |
693 | if (sr_scpi_get_float(sdi->conn, ":TDIV?", &devc->timebase) != SR_OK) | |
694 | return SR_ERR; | |
695 | sr_dbg("Current timebase: %g.", devc->timebase); | |
696 | devc->samplerate = samplerate_scope / (devc->timebase * devc->model->series->num_horizontal_divs); | |
697 | devc->memory_depth = samplerate_scope; | |
698 | return SR_OK; | |
699 | } |