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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 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <config.h> | |
21 | #include <stdlib.h> | |
22 | #include "scpi.h" | |
23 | #include "protocol.h" | |
24 | ||
25 | #define SERIALCOMM "115200/8n1/flow=1" | |
26 | ||
27 | static struct sr_dev_driver hameg_hmo_driver_info; | |
28 | ||
29 | static const char *manufacturers[] = { | |
30 | "HAMEG", | |
31 | "Rohde&Schwarz", | |
32 | }; | |
33 | ||
34 | static const uint32_t drvopts[] = { | |
35 | SR_CONF_OSCILLOSCOPE, | |
36 | }; | |
37 | ||
38 | static const uint32_t scanopts[] = { | |
39 | SR_CONF_CONN, | |
40 | SR_CONF_SERIALCOMM, | |
41 | }; | |
42 | ||
43 | enum { | |
44 | CG_INVALID = -1, | |
45 | CG_NONE, | |
46 | CG_ANALOG, | |
47 | CG_DIGITAL, | |
48 | }; | |
49 | ||
50 | static int check_manufacturer(const char *manufacturer) | |
51 | { | |
52 | unsigned int i; | |
53 | ||
54 | for (i = 0; i < ARRAY_SIZE(manufacturers); i++) | |
55 | if (!strcmp(manufacturer, manufacturers[i])) | |
56 | return SR_OK; | |
57 | ||
58 | return SR_ERR; | |
59 | } | |
60 | ||
61 | static struct sr_dev_inst *hmo_probe_serial_device(struct sr_scpi_dev_inst *scpi) | |
62 | { | |
63 | struct sr_dev_inst *sdi; | |
64 | struct dev_context *devc; | |
65 | struct sr_scpi_hw_info *hw_info; | |
66 | ||
67 | sdi = NULL; | |
68 | devc = NULL; | |
69 | hw_info = NULL; | |
70 | ||
71 | if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) { | |
72 | sr_info("Couldn't get IDN response."); | |
73 | goto fail; | |
74 | } | |
75 | ||
76 | if (check_manufacturer(hw_info->manufacturer) != SR_OK) | |
77 | goto fail; | |
78 | ||
79 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
80 | sdi->vendor = g_strdup(hw_info->manufacturer); | |
81 | sdi->model = g_strdup(hw_info->model); | |
82 | sdi->version = g_strdup(hw_info->firmware_version); | |
83 | sdi->serial_num = g_strdup(hw_info->serial_number); | |
84 | sdi->driver = &hameg_hmo_driver_info; | |
85 | sdi->inst_type = SR_INST_SCPI; | |
86 | sdi->conn = scpi; | |
87 | ||
88 | sr_scpi_hw_info_free(hw_info); | |
89 | hw_info = NULL; | |
90 | ||
91 | devc = g_malloc0(sizeof(struct dev_context)); | |
92 | ||
93 | sdi->priv = devc; | |
94 | ||
95 | if (hmo_init_device(sdi) != SR_OK) | |
96 | goto fail; | |
97 | ||
98 | return sdi; | |
99 | ||
100 | fail: | |
101 | if (hw_info) | |
102 | sr_scpi_hw_info_free(hw_info); | |
103 | if (sdi) | |
104 | sr_dev_inst_free(sdi); | |
105 | g_free(devc); | |
106 | ||
107 | return NULL; | |
108 | } | |
109 | ||
110 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
111 | { | |
112 | return sr_scpi_scan(di->context, options, hmo_probe_serial_device); | |
113 | } | |
114 | ||
115 | static void clear_helper(void *priv) | |
116 | { | |
117 | struct dev_context *devc; | |
118 | ||
119 | devc = priv; | |
120 | ||
121 | hmo_scope_state_free(devc->model_state); | |
122 | ||
123 | g_free(devc->analog_groups); | |
124 | g_free(devc->digital_groups); | |
125 | ||
126 | g_free(devc); | |
127 | } | |
128 | ||
129 | static int dev_clear(const struct sr_dev_driver *di) | |
130 | { | |
131 | return std_dev_clear(di, clear_helper); | |
132 | } | |
133 | ||
134 | static int dev_open(struct sr_dev_inst *sdi) | |
135 | { | |
136 | if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK) | |
137 | return SR_ERR; | |
138 | ||
139 | if (hmo_scope_state_get(sdi) != SR_OK) | |
140 | return SR_ERR; | |
141 | ||
142 | sdi->status = SR_ST_ACTIVE; | |
143 | ||
144 | return SR_OK; | |
145 | } | |
146 | ||
147 | static int dev_close(struct sr_dev_inst *sdi) | |
148 | { | |
149 | if (sdi->status == SR_ST_INACTIVE) | |
150 | return SR_OK; | |
151 | ||
152 | sr_scpi_close(sdi->conn); | |
153 | ||
154 | sdi->status = SR_ST_INACTIVE; | |
155 | ||
156 | return SR_OK; | |
157 | } | |
158 | ||
159 | static int check_channel_group(struct dev_context *devc, | |
160 | const struct sr_channel_group *cg) | |
161 | { | |
162 | unsigned int i; | |
163 | const struct scope_config *model; | |
164 | ||
165 | model = devc->model_config; | |
166 | ||
167 | if (!cg) | |
168 | return CG_NONE; | |
169 | ||
170 | for (i = 0; i < model->analog_channels; i++) | |
171 | if (cg == devc->analog_groups[i]) | |
172 | return CG_ANALOG; | |
173 | ||
174 | for (i = 0; i < model->digital_pods; i++) | |
175 | if (cg == devc->digital_groups[i]) | |
176 | return CG_DIGITAL; | |
177 | ||
178 | sr_err("Invalid channel group specified."); | |
179 | ||
180 | return CG_INVALID; | |
181 | } | |
182 | ||
183 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
184 | const struct sr_channel_group *cg) | |
185 | { | |
186 | int ret, cg_type; | |
187 | unsigned int i; | |
188 | struct dev_context *devc; | |
189 | const struct scope_config *model; | |
190 | struct scope_state *state; | |
191 | ||
192 | if (!sdi) | |
193 | return SR_ERR_ARG; | |
194 | ||
195 | devc = sdi->priv; | |
196 | ||
197 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
198 | return SR_ERR; | |
199 | ||
200 | ret = SR_ERR_NA; | |
201 | model = devc->model_config; | |
202 | state = devc->model_state; | |
203 | ||
204 | switch (key) { | |
205 | case SR_CONF_NUM_HDIV: | |
206 | *data = g_variant_new_int32(model->num_xdivs); | |
207 | ret = SR_OK; | |
208 | break; | |
209 | case SR_CONF_TIMEBASE: | |
210 | *data = g_variant_new("(tt)", (*model->timebases)[state->timebase][0], | |
211 | (*model->timebases)[state->timebase][1]); | |
212 | ret = SR_OK; | |
213 | break; | |
214 | case SR_CONF_NUM_VDIV: | |
215 | if (cg_type == CG_NONE) { | |
216 | sr_err("No channel group specified."); | |
217 | return SR_ERR_CHANNEL_GROUP; | |
218 | } else if (cg_type == CG_ANALOG) { | |
219 | for (i = 0; i < model->analog_channels; i++) { | |
220 | if (cg != devc->analog_groups[i]) | |
221 | continue; | |
222 | *data = g_variant_new_int32(model->num_ydivs); | |
223 | ret = SR_OK; | |
224 | break; | |
225 | } | |
226 | ||
227 | } else { | |
228 | ret = SR_ERR_NA; | |
229 | } | |
230 | break; | |
231 | case SR_CONF_VDIV: | |
232 | if (cg_type == CG_NONE) { | |
233 | sr_err("No channel group specified."); | |
234 | return SR_ERR_CHANNEL_GROUP; | |
235 | } else if (cg_type == CG_ANALOG) { | |
236 | for (i = 0; i < model->analog_channels; i++) { | |
237 | if (cg != devc->analog_groups[i]) | |
238 | continue; | |
239 | *data = g_variant_new("(tt)", | |
240 | (*model->vdivs)[state->analog_channels[i].vdiv][0], | |
241 | (*model->vdivs)[state->analog_channels[i].vdiv][1]); | |
242 | ret = SR_OK; | |
243 | break; | |
244 | } | |
245 | ||
246 | } else { | |
247 | ret = SR_ERR_NA; | |
248 | } | |
249 | break; | |
250 | case SR_CONF_TRIGGER_SOURCE: | |
251 | *data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]); | |
252 | ret = SR_OK; | |
253 | break; | |
254 | case SR_CONF_TRIGGER_SLOPE: | |
255 | *data = g_variant_new_string((*model->trigger_slopes)[state->trigger_slope]); | |
256 | ret = SR_OK; | |
257 | break; | |
258 | case SR_CONF_HORIZ_TRIGGERPOS: | |
259 | *data = g_variant_new_double(state->horiz_triggerpos); | |
260 | ret = SR_OK; | |
261 | break; | |
262 | case SR_CONF_COUPLING: | |
263 | if (cg_type == CG_NONE) { | |
264 | sr_err("No channel group specified."); | |
265 | return SR_ERR_CHANNEL_GROUP; | |
266 | } else if (cg_type == CG_ANALOG) { | |
267 | for (i = 0; i < model->analog_channels; i++) { | |
268 | if (cg != devc->analog_groups[i]) | |
269 | continue; | |
270 | *data = g_variant_new_string((*model->coupling_options)[state->analog_channels[i].coupling]); | |
271 | ret = SR_OK; | |
272 | break; | |
273 | } | |
274 | ||
275 | } else { | |
276 | ret = SR_ERR_NA; | |
277 | } | |
278 | break; | |
279 | case SR_CONF_SAMPLERATE: | |
280 | *data = g_variant_new_uint64(state->sample_rate); | |
281 | ret = SR_OK; | |
282 | break; | |
283 | default: | |
284 | ret = SR_ERR_NA; | |
285 | } | |
286 | ||
287 | return ret; | |
288 | } | |
289 | ||
290 | static GVariant *build_tuples(const uint64_t (*array)[][2], unsigned int n) | |
291 | { | |
292 | unsigned int i; | |
293 | GVariant *rational[2]; | |
294 | GVariantBuilder gvb; | |
295 | ||
296 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
297 | ||
298 | for (i = 0; i < n; i++) { | |
299 | rational[0] = g_variant_new_uint64((*array)[i][0]); | |
300 | rational[1] = g_variant_new_uint64((*array)[i][1]); | |
301 | ||
302 | /* FIXME: Valgrind reports a memory leak here. */ | |
303 | g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2)); | |
304 | } | |
305 | ||
306 | return g_variant_builder_end(&gvb); | |
307 | } | |
308 | ||
309 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
310 | const struct sr_channel_group *cg) | |
311 | { | |
312 | int ret, cg_type; | |
313 | unsigned int i, j; | |
314 | char command[MAX_COMMAND_SIZE], float_str[30]; | |
315 | struct dev_context *devc; | |
316 | const struct scope_config *model; | |
317 | struct scope_state *state; | |
318 | const char *tmp; | |
319 | uint64_t p, q; | |
320 | double tmp_d; | |
321 | gboolean update_sample_rate; | |
322 | ||
323 | if (!sdi) | |
324 | return SR_ERR_ARG; | |
325 | ||
326 | devc = sdi->priv; | |
327 | ||
328 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
329 | return SR_ERR; | |
330 | ||
331 | model = devc->model_config; | |
332 | state = devc->model_state; | |
333 | update_sample_rate = FALSE; | |
334 | ||
335 | ret = SR_ERR_NA; | |
336 | ||
337 | switch (key) { | |
338 | case SR_CONF_LIMIT_FRAMES: | |
339 | devc->frame_limit = g_variant_get_uint64(data); | |
340 | ret = SR_OK; | |
341 | break; | |
342 | case SR_CONF_TRIGGER_SOURCE: | |
343 | tmp = g_variant_get_string(data, NULL); | |
344 | for (i = 0; (*model->trigger_sources)[i]; i++) { | |
345 | if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0) | |
346 | continue; | |
347 | state->trigger_source = i; | |
348 | g_snprintf(command, sizeof(command), | |
349 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SOURCE], | |
350 | (*model->trigger_sources)[i]); | |
351 | ||
352 | ret = sr_scpi_send(sdi->conn, command); | |
353 | break; | |
354 | } | |
355 | break; | |
356 | case SR_CONF_VDIV: | |
357 | if (cg_type == CG_NONE) { | |
358 | sr_err("No channel group specified."); | |
359 | return SR_ERR_CHANNEL_GROUP; | |
360 | } | |
361 | ||
362 | g_variant_get(data, "(tt)", &p, &q); | |
363 | ||
364 | for (i = 0; i < model->num_vdivs; i++) { | |
365 | if (p != (*model->vdivs)[i][0] || | |
366 | q != (*model->vdivs)[i][1]) | |
367 | continue; | |
368 | for (j = 1; j <= model->analog_channels; j++) { | |
369 | if (cg != devc->analog_groups[j - 1]) | |
370 | continue; | |
371 | state->analog_channels[j - 1].vdiv = i; | |
372 | g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q); | |
373 | g_snprintf(command, sizeof(command), | |
374 | (*model->scpi_dialect)[SCPI_CMD_SET_VERTICAL_DIV], | |
375 | j, float_str); | |
376 | ||
377 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
378 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
379 | return SR_ERR; | |
380 | ||
381 | break; | |
382 | } | |
383 | ||
384 | ret = SR_OK; | |
385 | break; | |
386 | } | |
387 | break; | |
388 | case SR_CONF_TIMEBASE: | |
389 | g_variant_get(data, "(tt)", &p, &q); | |
390 | ||
391 | for (i = 0; i < model->num_timebases; i++) { | |
392 | if (p != (*model->timebases)[i][0] || | |
393 | q != (*model->timebases)[i][1]) | |
394 | continue; | |
395 | state->timebase = i; | |
396 | g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q); | |
397 | g_snprintf(command, sizeof(command), | |
398 | (*model->scpi_dialect)[SCPI_CMD_SET_TIMEBASE], | |
399 | float_str); | |
400 | ||
401 | ret = sr_scpi_send(sdi->conn, command); | |
402 | update_sample_rate = TRUE; | |
403 | break; | |
404 | } | |
405 | break; | |
406 | case SR_CONF_HORIZ_TRIGGERPOS: | |
407 | tmp_d = g_variant_get_double(data); | |
408 | ||
409 | if (tmp_d < 0.0 || tmp_d > 1.0) | |
410 | return SR_ERR; | |
411 | ||
412 | state->horiz_triggerpos = tmp_d; | |
413 | tmp_d = -(tmp_d - 0.5) * | |
414 | ((double) (*model->timebases)[state->timebase][0] / | |
415 | (*model->timebases)[state->timebase][1]) | |
416 | * model->num_xdivs; | |
417 | ||
418 | g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d); | |
419 | g_snprintf(command, sizeof(command), | |
420 | (*model->scpi_dialect)[SCPI_CMD_SET_HORIZ_TRIGGERPOS], | |
421 | float_str); | |
422 | ||
423 | ret = sr_scpi_send(sdi->conn, command); | |
424 | break; | |
425 | case SR_CONF_TRIGGER_SLOPE: | |
426 | tmp = g_variant_get_string(data, NULL); | |
427 | for (i = 0; (*model->trigger_slopes)[i]; i++) { | |
428 | if (g_strcmp0(tmp, (*model->trigger_slopes)[i]) != 0) | |
429 | continue; | |
430 | state->trigger_slope = i; | |
431 | g_snprintf(command, sizeof(command), | |
432 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SLOPE], | |
433 | (*model->trigger_slopes)[i]); | |
434 | ||
435 | ret = sr_scpi_send(sdi->conn, command); | |
436 | break; | |
437 | } | |
438 | break; | |
439 | case SR_CONF_COUPLING: | |
440 | if (cg_type == CG_NONE) { | |
441 | sr_err("No channel group specified."); | |
442 | return SR_ERR_CHANNEL_GROUP; | |
443 | } | |
444 | ||
445 | tmp = g_variant_get_string(data, NULL); | |
446 | ||
447 | for (i = 0; (*model->coupling_options)[i]; i++) { | |
448 | if (strcmp(tmp, (*model->coupling_options)[i]) != 0) | |
449 | continue; | |
450 | for (j = 1; j <= model->analog_channels; j++) { | |
451 | if (cg != devc->analog_groups[j - 1]) | |
452 | continue; | |
453 | state->analog_channels[j-1].coupling = i; | |
454 | ||
455 | g_snprintf(command, sizeof(command), | |
456 | (*model->scpi_dialect)[SCPI_CMD_SET_COUPLING], | |
457 | j, tmp); | |
458 | ||
459 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
460 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
461 | return SR_ERR; | |
462 | break; | |
463 | } | |
464 | ||
465 | ret = SR_OK; | |
466 | break; | |
467 | } | |
468 | break; | |
469 | default: | |
470 | ret = SR_ERR_NA; | |
471 | break; | |
472 | } | |
473 | ||
474 | if (ret == SR_OK) | |
475 | ret = sr_scpi_get_opc(sdi->conn); | |
476 | ||
477 | if (ret == SR_OK && update_sample_rate) | |
478 | ret = hmo_update_sample_rate(sdi); | |
479 | ||
480 | return ret; | |
481 | } | |
482 | ||
483 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
484 | const struct sr_channel_group *cg) | |
485 | { | |
486 | int cg_type = CG_NONE; | |
487 | struct dev_context *devc = NULL; | |
488 | const struct scope_config *model = NULL; | |
489 | ||
490 | if (sdi) { | |
491 | devc = sdi->priv; | |
492 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
493 | return SR_ERR; | |
494 | ||
495 | model = devc->model_config; | |
496 | } | |
497 | ||
498 | switch (key) { | |
499 | case SR_CONF_SCAN_OPTIONS: | |
500 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
501 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
502 | break; | |
503 | case SR_CONF_DEVICE_OPTIONS: | |
504 | if (cg_type == CG_NONE) { | |
505 | if (model) | |
506 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
507 | model->devopts, model->num_devopts, sizeof(uint32_t)); | |
508 | else | |
509 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
510 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
511 | } else if (cg_type == CG_ANALOG) { | |
512 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
513 | model->analog_devopts, model->num_analog_devopts, | |
514 | sizeof(uint32_t)); | |
515 | } else { | |
516 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
517 | NULL, 0, sizeof(uint32_t)); | |
518 | } | |
519 | break; | |
520 | case SR_CONF_COUPLING: | |
521 | if (cg_type == CG_NONE) | |
522 | return SR_ERR_CHANNEL_GROUP; | |
523 | *data = g_variant_new_strv(*model->coupling_options, | |
524 | g_strv_length((char **)*model->coupling_options)); | |
525 | break; | |
526 | case SR_CONF_TRIGGER_SOURCE: | |
527 | if (!model) | |
528 | return SR_ERR_ARG; | |
529 | *data = g_variant_new_strv(*model->trigger_sources, | |
530 | g_strv_length((char **)*model->trigger_sources)); | |
531 | break; | |
532 | case SR_CONF_TRIGGER_SLOPE: | |
533 | if (!model) | |
534 | return SR_ERR_ARG; | |
535 | *data = g_variant_new_strv(*model->trigger_slopes, | |
536 | g_strv_length((char **)*model->trigger_slopes)); | |
537 | break; | |
538 | case SR_CONF_TIMEBASE: | |
539 | if (!model) | |
540 | return SR_ERR_ARG; | |
541 | *data = build_tuples(model->timebases, model->num_timebases); | |
542 | break; | |
543 | case SR_CONF_VDIV: | |
544 | if (cg_type == CG_NONE) | |
545 | return SR_ERR_CHANNEL_GROUP; | |
546 | *data = build_tuples(model->vdivs, model->num_vdivs); | |
547 | break; | |
548 | default: | |
549 | return SR_ERR_NA; | |
550 | } | |
551 | ||
552 | return SR_OK; | |
553 | } | |
554 | ||
555 | SR_PRIV int hmo_request_data(const struct sr_dev_inst *sdi) | |
556 | { | |
557 | char command[MAX_COMMAND_SIZE]; | |
558 | struct sr_channel *ch; | |
559 | struct dev_context *devc; | |
560 | const struct scope_config *model; | |
561 | ||
562 | devc = sdi->priv; | |
563 | model = devc->model_config; | |
564 | ||
565 | ch = devc->current_channel->data; | |
566 | ||
567 | switch (ch->type) { | |
568 | case SR_CHANNEL_ANALOG: | |
569 | g_snprintf(command, sizeof(command), | |
570 | (*model->scpi_dialect)[SCPI_CMD_GET_ANALOG_DATA], | |
571 | ch->index + 1); | |
572 | break; | |
573 | case SR_CHANNEL_LOGIC: | |
574 | g_snprintf(command, sizeof(command), | |
575 | (*model->scpi_dialect)[SCPI_CMD_GET_DIG_DATA], | |
576 | ch->index < 8 ? 1 : 2); | |
577 | break; | |
578 | default: | |
579 | sr_err("Invalid channel type."); | |
580 | break; | |
581 | } | |
582 | ||
583 | return sr_scpi_send(sdi->conn, command); | |
584 | } | |
585 | ||
586 | static int hmo_check_channels(GSList *channels) | |
587 | { | |
588 | GSList *l; | |
589 | struct sr_channel *ch; | |
590 | gboolean enabled_pod1, enabled_pod2, enabled_chan3, enabled_chan4; | |
591 | ||
592 | enabled_pod1 = enabled_pod2 = enabled_chan3 = enabled_chan4 = FALSE; | |
593 | ||
594 | for (l = channels; l; l = l->next) { | |
595 | ch = l->data; | |
596 | switch (ch->type) { | |
597 | case SR_CHANNEL_ANALOG: | |
598 | if (ch->index == 2) | |
599 | enabled_chan3 = TRUE; | |
600 | else if (ch->index == 3) | |
601 | enabled_chan4 = TRUE; | |
602 | break; | |
603 | case SR_CHANNEL_LOGIC: | |
604 | if (ch->index < 8) | |
605 | enabled_pod1 = TRUE; | |
606 | else | |
607 | enabled_pod2 = TRUE; | |
608 | break; | |
609 | default: | |
610 | return SR_ERR; | |
611 | } | |
612 | } | |
613 | ||
614 | if ((enabled_pod1 && enabled_chan3) || | |
615 | (enabled_pod2 && enabled_chan4)) | |
616 | return SR_ERR; | |
617 | ||
618 | return SR_OK; | |
619 | } | |
620 | ||
621 | static int hmo_setup_channels(const struct sr_dev_inst *sdi) | |
622 | { | |
623 | GSList *l; | |
624 | unsigned int i; | |
625 | gboolean *pod_enabled, setup_changed; | |
626 | char command[MAX_COMMAND_SIZE]; | |
627 | struct scope_state *state; | |
628 | const struct scope_config *model; | |
629 | struct sr_channel *ch; | |
630 | struct dev_context *devc; | |
631 | struct sr_scpi_dev_inst *scpi; | |
632 | ||
633 | devc = sdi->priv; | |
634 | scpi = sdi->conn; | |
635 | state = devc->model_state; | |
636 | model = devc->model_config; | |
637 | setup_changed = FALSE; | |
638 | ||
639 | pod_enabled = g_try_malloc0(sizeof(gboolean) * model->digital_pods); | |
640 | ||
641 | for (l = sdi->channels; l; l = l->next) { | |
642 | ch = l->data; | |
643 | switch (ch->type) { | |
644 | case SR_CHANNEL_ANALOG: | |
645 | if (ch->enabled == state->analog_channels[ch->index].state) | |
646 | break; | |
647 | g_snprintf(command, sizeof(command), | |
648 | (*model->scpi_dialect)[SCPI_CMD_SET_ANALOG_CHAN_STATE], | |
649 | ch->index + 1, ch->enabled); | |
650 | ||
651 | if (sr_scpi_send(scpi, command) != SR_OK) | |
652 | return SR_ERR; | |
653 | state->analog_channels[ch->index].state = ch->enabled; | |
654 | setup_changed = TRUE; | |
655 | break; | |
656 | case SR_CHANNEL_LOGIC: | |
657 | /* | |
658 | * A digital POD needs to be enabled for every group of | |
659 | * 8 channels. | |
660 | */ | |
661 | if (ch->enabled) | |
662 | pod_enabled[ch->index < 8 ? 0 : 1] = TRUE; | |
663 | ||
664 | if (ch->enabled == state->digital_channels[ch->index]) | |
665 | break; | |
666 | g_snprintf(command, sizeof(command), | |
667 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_CHAN_STATE], | |
668 | ch->index, ch->enabled); | |
669 | ||
670 | if (sr_scpi_send(scpi, command) != SR_OK) | |
671 | return SR_ERR; | |
672 | ||
673 | state->digital_channels[ch->index] = ch->enabled; | |
674 | setup_changed = TRUE; | |
675 | break; | |
676 | default: | |
677 | return SR_ERR; | |
678 | } | |
679 | } | |
680 | ||
681 | for (i = 1; i <= model->digital_pods; i++) { | |
682 | if (state->digital_pods[i - 1] == pod_enabled[i - 1]) | |
683 | continue; | |
684 | g_snprintf(command, sizeof(command), | |
685 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_STATE], | |
686 | i, pod_enabled[i - 1]); | |
687 | if (sr_scpi_send(scpi, command) != SR_OK) | |
688 | return SR_ERR; | |
689 | state->digital_pods[i - 1] = pod_enabled[i - 1]; | |
690 | setup_changed = TRUE; | |
691 | } | |
692 | ||
693 | g_free(pod_enabled); | |
694 | ||
695 | if (setup_changed && hmo_update_sample_rate(sdi) != SR_OK) | |
696 | return SR_ERR; | |
697 | ||
698 | return SR_OK; | |
699 | } | |
700 | ||
701 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
702 | { | |
703 | GSList *l; | |
704 | gboolean digital_added; | |
705 | struct sr_channel *ch; | |
706 | struct dev_context *devc; | |
707 | struct sr_scpi_dev_inst *scpi; | |
708 | ||
709 | if (sdi->status != SR_ST_ACTIVE) | |
710 | return SR_ERR_DEV_CLOSED; | |
711 | ||
712 | scpi = sdi->conn; | |
713 | devc = sdi->priv; | |
714 | digital_added = FALSE; | |
715 | ||
716 | g_slist_free(devc->enabled_channels); | |
717 | devc->enabled_channels = NULL; | |
718 | ||
719 | for (l = sdi->channels; l; l = l->next) { | |
720 | ch = l->data; | |
721 | if (!ch->enabled) | |
722 | continue; | |
723 | /* Only add a single digital channel. */ | |
724 | if (ch->type != SR_CHANNEL_LOGIC || !digital_added) { | |
725 | devc->enabled_channels = g_slist_append( | |
726 | devc->enabled_channels, ch); | |
727 | if (ch->type == SR_CHANNEL_LOGIC) | |
728 | digital_added = TRUE; | |
729 | } | |
730 | } | |
731 | ||
732 | if (!devc->enabled_channels) | |
733 | return SR_ERR; | |
734 | ||
735 | if (hmo_check_channels(devc->enabled_channels) != SR_OK) { | |
736 | sr_err("Invalid channel configuration specified!"); | |
737 | return SR_ERR_NA; | |
738 | } | |
739 | ||
740 | if (hmo_setup_channels(sdi) != SR_OK) { | |
741 | sr_err("Failed to setup channel configuration!"); | |
742 | return SR_ERR; | |
743 | } | |
744 | ||
745 | sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50, | |
746 | hmo_receive_data, (void *)sdi); | |
747 | ||
748 | std_session_send_df_header(sdi, LOG_PREFIX); | |
749 | ||
750 | devc->current_channel = devc->enabled_channels; | |
751 | ||
752 | return hmo_request_data(sdi); | |
753 | } | |
754 | ||
755 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
756 | { | |
757 | struct dev_context *devc; | |
758 | struct sr_scpi_dev_inst *scpi; | |
759 | ||
760 | std_session_send_df_end(sdi, LOG_PREFIX); | |
761 | ||
762 | if (sdi->status != SR_ST_ACTIVE) | |
763 | return SR_ERR_DEV_CLOSED; | |
764 | ||
765 | devc = sdi->priv; | |
766 | ||
767 | devc->num_frames = 0; | |
768 | g_slist_free(devc->enabled_channels); | |
769 | devc->enabled_channels = NULL; | |
770 | scpi = sdi->conn; | |
771 | sr_scpi_source_remove(sdi->session, scpi); | |
772 | ||
773 | return SR_OK; | |
774 | } | |
775 | ||
776 | static struct sr_dev_driver hameg_hmo_driver_info = { | |
777 | .name = "hameg-hmo", | |
778 | .longname = "Hameg HMO", | |
779 | .api_version = 1, | |
780 | .init = std_init, | |
781 | .cleanup = std_cleanup, | |
782 | .scan = scan, | |
783 | .dev_list = std_dev_list, | |
784 | .dev_clear = dev_clear, | |
785 | .config_get = config_get, | |
786 | .config_set = config_set, | |
787 | .config_list = config_list, | |
788 | .dev_open = dev_open, | |
789 | .dev_close = dev_close, | |
790 | .dev_acquisition_start = dev_acquisition_start, | |
791 | .dev_acquisition_stop = dev_acquisition_stop, | |
792 | .context = NULL, | |
793 | }; | |
794 | SR_REGISTER_DEV_DRIVER(hameg_hmo_driver_info); |