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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 <stdlib.h> | |
21 | #include "protocol.h" | |
22 | ||
23 | #define SERIALCOMM "115200/8n1/flow=1" | |
24 | ||
25 | SR_PRIV struct sr_dev_driver hameg_hmo_driver_info; | |
26 | static struct sr_dev_driver *di = &hameg_hmo_driver_info; | |
27 | ||
28 | static const char *manufacturers[] = { | |
29 | "HAMEG", | |
30 | }; | |
31 | ||
32 | static const uint32_t drvopts[] = { | |
33 | SR_CONF_OSCILLOSCOPE, | |
34 | }; | |
35 | ||
36 | static const uint32_t scanopts[] = { | |
37 | SR_CONF_CONN, | |
38 | SR_CONF_SERIALCOMM, | |
39 | }; | |
40 | ||
41 | enum { | |
42 | CG_INVALID = -1, | |
43 | CG_NONE, | |
44 | CG_ANALOG, | |
45 | CG_DIGITAL, | |
46 | }; | |
47 | ||
48 | static int init(struct sr_context *sr_ctx) | |
49 | { | |
50 | return std_init(sr_ctx, di, LOG_PREFIX); | |
51 | } | |
52 | ||
53 | static int check_manufacturer(const char *manufacturer) | |
54 | { | |
55 | unsigned int i; | |
56 | ||
57 | for (i = 0; i < ARRAY_SIZE(manufacturers); ++i) | |
58 | if (!strcmp(manufacturer, manufacturers[i])) | |
59 | return SR_OK; | |
60 | ||
61 | return SR_ERR; | |
62 | } | |
63 | ||
64 | static struct sr_dev_inst *hmo_probe_serial_device(struct sr_scpi_dev_inst *scpi) | |
65 | { | |
66 | struct sr_dev_inst *sdi; | |
67 | struct dev_context *devc; | |
68 | struct sr_scpi_hw_info *hw_info; | |
69 | ||
70 | sdi = NULL; | |
71 | devc = NULL; | |
72 | hw_info = NULL; | |
73 | ||
74 | if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) { | |
75 | sr_info("Couldn't get IDN response."); | |
76 | goto fail; | |
77 | } | |
78 | ||
79 | if (check_manufacturer(hw_info->manufacturer) != SR_OK) | |
80 | goto fail; | |
81 | ||
82 | sdi = sr_dev_inst_new(); | |
83 | sdi->status = SR_ST_ACTIVE; | |
84 | sdi->vendor = g_strdup(hw_info->manufacturer); | |
85 | sdi->model = g_strdup(hw_info->model); | |
86 | sdi->version = g_strdup(hw_info->firmware_version); | |
87 | sdi->serial_num = g_strdup(hw_info->serial_number); | |
88 | sdi->driver = di; | |
89 | sdi->inst_type = SR_INST_SCPI; | |
90 | sdi->conn = scpi; | |
91 | ||
92 | sr_scpi_hw_info_free(hw_info); | |
93 | hw_info = NULL; | |
94 | ||
95 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) | |
96 | goto fail; | |
97 | ||
98 | sdi->priv = devc; | |
99 | ||
100 | if (hmo_init_device(sdi) != SR_OK) | |
101 | goto fail; | |
102 | ||
103 | sr_scpi_close(sdi->conn); | |
104 | ||
105 | sdi->status = SR_ST_INACTIVE; | |
106 | ||
107 | return sdi; | |
108 | ||
109 | fail: | |
110 | if (hw_info) | |
111 | sr_scpi_hw_info_free(hw_info); | |
112 | if (sdi) | |
113 | sr_dev_inst_free(sdi); | |
114 | if (devc) | |
115 | g_free(devc); | |
116 | ||
117 | return NULL; | |
118 | } | |
119 | ||
120 | static GSList *scan(GSList *options) | |
121 | { | |
122 | return sr_scpi_scan(di->priv, options, hmo_probe_serial_device); | |
123 | } | |
124 | ||
125 | static GSList *dev_list(void) | |
126 | { | |
127 | return ((struct drv_context *)(di->priv))->instances; | |
128 | } | |
129 | ||
130 | static void clear_helper(void *priv) | |
131 | { | |
132 | struct dev_context *devc; | |
133 | ||
134 | devc = priv; | |
135 | ||
136 | hmo_scope_state_free(devc->model_state); | |
137 | ||
138 | g_free(devc->analog_groups); | |
139 | g_free(devc->digital_groups); | |
140 | ||
141 | g_free(devc); | |
142 | } | |
143 | ||
144 | static int dev_clear(void) | |
145 | { | |
146 | return std_dev_clear(di, clear_helper); | |
147 | } | |
148 | ||
149 | static int dev_open(struct sr_dev_inst *sdi) | |
150 | { | |
151 | if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK) | |
152 | return SR_ERR; | |
153 | ||
154 | if (hmo_scope_state_get(sdi) != SR_OK) | |
155 | return SR_ERR; | |
156 | ||
157 | sdi->status = SR_ST_ACTIVE; | |
158 | ||
159 | return SR_OK; | |
160 | } | |
161 | ||
162 | static int dev_close(struct sr_dev_inst *sdi) | |
163 | { | |
164 | if (sdi->status == SR_ST_INACTIVE) | |
165 | return SR_OK; | |
166 | ||
167 | sr_scpi_close(sdi->conn); | |
168 | ||
169 | sdi->status = SR_ST_INACTIVE; | |
170 | ||
171 | return SR_OK; | |
172 | } | |
173 | ||
174 | static int cleanup(void) | |
175 | { | |
176 | dev_clear(); | |
177 | ||
178 | return SR_OK; | |
179 | } | |
180 | ||
181 | static int check_channel_group(struct dev_context *devc, | |
182 | const struct sr_channel_group *cg) | |
183 | { | |
184 | unsigned int i; | |
185 | struct scope_config *model; | |
186 | ||
187 | model = devc->model_config; | |
188 | ||
189 | if (!cg) | |
190 | return CG_NONE; | |
191 | ||
192 | for (i = 0; i < model->analog_channels; ++i) | |
193 | if (cg == devc->analog_groups[i]) | |
194 | return CG_ANALOG; | |
195 | ||
196 | for (i = 0; i < model->digital_pods; ++i) | |
197 | if (cg == devc->digital_groups[i]) | |
198 | return CG_DIGITAL; | |
199 | ||
200 | sr_err("Invalid channel group specified."); | |
201 | ||
202 | return CG_INVALID; | |
203 | } | |
204 | ||
205 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
206 | const struct sr_channel_group *cg) | |
207 | { | |
208 | int ret, cg_type; | |
209 | unsigned int i; | |
210 | struct dev_context *devc; | |
211 | struct scope_config *model; | |
212 | struct scope_state *state; | |
213 | ||
214 | if (!sdi || !(devc = sdi->priv)) | |
215 | return SR_ERR_ARG; | |
216 | ||
217 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
218 | return SR_ERR; | |
219 | ||
220 | ret = SR_ERR_NA; | |
221 | model = devc->model_config; | |
222 | state = devc->model_state; | |
223 | ||
224 | switch (key) { | |
225 | case SR_CONF_NUM_TIMEBASE: | |
226 | *data = g_variant_new_int32(model->num_xdivs); | |
227 | ret = SR_OK; | |
228 | break; | |
229 | case SR_CONF_TIMEBASE: | |
230 | *data = g_variant_new("(tt)", (*model->timebases)[state->timebase][0], | |
231 | (*model->timebases)[state->timebase][1]); | |
232 | ret = SR_OK; | |
233 | break; | |
234 | case SR_CONF_NUM_VDIV: | |
235 | if (cg_type == CG_NONE) { | |
236 | sr_err("No channel group specified."); | |
237 | return SR_ERR_CHANNEL_GROUP; | |
238 | } else if (cg_type == CG_ANALOG) { | |
239 | for (i = 0; i < model->analog_channels; ++i) { | |
240 | if (cg != devc->analog_groups[i]) | |
241 | continue; | |
242 | *data = g_variant_new_int32(model->num_ydivs); | |
243 | ret = SR_OK; | |
244 | break; | |
245 | } | |
246 | ||
247 | } else { | |
248 | ret = SR_ERR_NA; | |
249 | } | |
250 | break; | |
251 | case SR_CONF_VDIV: | |
252 | if (cg_type == CG_NONE) { | |
253 | sr_err("No channel group specified."); | |
254 | return SR_ERR_CHANNEL_GROUP; | |
255 | } else if (cg_type == CG_ANALOG) { | |
256 | for (i = 0; i < model->analog_channels; ++i) { | |
257 | if (cg != devc->analog_groups[i]) | |
258 | continue; | |
259 | *data = g_variant_new("(tt)", | |
260 | (*model->vdivs)[state->analog_channels[i].vdiv][0], | |
261 | (*model->vdivs)[state->analog_channels[i].vdiv][1]); | |
262 | ret = SR_OK; | |
263 | break; | |
264 | } | |
265 | ||
266 | } else { | |
267 | ret = SR_ERR_NA; | |
268 | } | |
269 | break; | |
270 | case SR_CONF_TRIGGER_SOURCE: | |
271 | *data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]); | |
272 | ret = SR_OK; | |
273 | break; | |
274 | case SR_CONF_TRIGGER_SLOPE: | |
275 | *data = g_variant_new_string((*model->trigger_slopes)[state->trigger_slope]); | |
276 | ret = SR_OK; | |
277 | break; | |
278 | case SR_CONF_HORIZ_TRIGGERPOS: | |
279 | *data = g_variant_new_double(state->horiz_triggerpos); | |
280 | ret = SR_OK; | |
281 | break; | |
282 | case SR_CONF_COUPLING: | |
283 | if (cg_type == CG_NONE) { | |
284 | sr_err("No channel group specified."); | |
285 | return SR_ERR_CHANNEL_GROUP; | |
286 | } else if (cg_type == CG_ANALOG) { | |
287 | for (i = 0; i < model->analog_channels; ++i) { | |
288 | if (cg != devc->analog_groups[i]) | |
289 | continue; | |
290 | *data = g_variant_new_string((*model->coupling_options)[state->analog_channels[i].coupling]); | |
291 | ret = SR_OK; | |
292 | break; | |
293 | } | |
294 | ||
295 | } else { | |
296 | ret = SR_ERR_NA; | |
297 | } | |
298 | break; | |
299 | case SR_CONF_SAMPLERATE: | |
300 | *data = g_variant_new_uint64(state->sample_rate); | |
301 | ret = SR_OK; | |
302 | break; | |
303 | default: | |
304 | ret = SR_ERR_NA; | |
305 | } | |
306 | ||
307 | return ret; | |
308 | } | |
309 | ||
310 | static GVariant *build_tuples(const uint64_t (*array)[][2], unsigned int n) | |
311 | { | |
312 | unsigned int i; | |
313 | GVariant *rational[2]; | |
314 | GVariantBuilder gvb; | |
315 | ||
316 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
317 | ||
318 | for (i = 0; i < n; i++) { | |
319 | rational[0] = g_variant_new_uint64((*array)[i][0]); | |
320 | rational[1] = g_variant_new_uint64((*array)[i][1]); | |
321 | ||
322 | /* FIXME: Valgrind reports a memory leak here. */ | |
323 | g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2)); | |
324 | } | |
325 | ||
326 | return g_variant_builder_end(&gvb); | |
327 | } | |
328 | ||
329 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
330 | const struct sr_channel_group *cg) | |
331 | { | |
332 | int ret, cg_type; | |
333 | unsigned int i, j; | |
334 | char command[MAX_COMMAND_SIZE], float_str[30]; | |
335 | struct dev_context *devc; | |
336 | struct scope_config *model; | |
337 | struct scope_state *state; | |
338 | const char *tmp; | |
339 | uint64_t p, q; | |
340 | double tmp_d; | |
341 | gboolean update_sample_rate; | |
342 | ||
343 | if (!sdi || !(devc = sdi->priv)) | |
344 | return SR_ERR_ARG; | |
345 | ||
346 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
347 | return SR_ERR; | |
348 | ||
349 | model = devc->model_config; | |
350 | state = devc->model_state; | |
351 | update_sample_rate = FALSE; | |
352 | ||
353 | ret = SR_ERR_NA; | |
354 | ||
355 | switch (key) { | |
356 | case SR_CONF_LIMIT_FRAMES: | |
357 | devc->frame_limit = g_variant_get_uint64(data); | |
358 | ret = SR_OK; | |
359 | break; | |
360 | case SR_CONF_TRIGGER_SOURCE: | |
361 | tmp = g_variant_get_string(data, NULL); | |
362 | for (i = 0; (*model->trigger_sources)[i]; i++) { | |
363 | if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0) | |
364 | continue; | |
365 | state->trigger_source = i; | |
366 | g_snprintf(command, sizeof(command), | |
367 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SOURCE], | |
368 | (*model->trigger_sources)[i]); | |
369 | ||
370 | ret = sr_scpi_send(sdi->conn, command); | |
371 | break; | |
372 | } | |
373 | break; | |
374 | case SR_CONF_VDIV: | |
375 | if (cg_type == CG_NONE) { | |
376 | sr_err("No channel group specified."); | |
377 | return SR_ERR_CHANNEL_GROUP; | |
378 | } | |
379 | ||
380 | g_variant_get(data, "(tt)", &p, &q); | |
381 | ||
382 | for (i = 0; i < model->num_vdivs; i++) { | |
383 | if (p != (*model->vdivs)[i][0] || | |
384 | q != (*model->vdivs)[i][1]) | |
385 | continue; | |
386 | for (j = 1; j <= model->analog_channels; ++j) { | |
387 | if (cg != devc->analog_groups[j - 1]) | |
388 | continue; | |
389 | state->analog_channels[j - 1].vdiv = i; | |
390 | g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q); | |
391 | g_snprintf(command, sizeof(command), | |
392 | (*model->scpi_dialect)[SCPI_CMD_SET_VERTICAL_DIV], | |
393 | j, float_str); | |
394 | ||
395 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
396 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
397 | return SR_ERR; | |
398 | ||
399 | break; | |
400 | } | |
401 | ||
402 | ret = SR_OK; | |
403 | break; | |
404 | } | |
405 | break; | |
406 | case SR_CONF_TIMEBASE: | |
407 | g_variant_get(data, "(tt)", &p, &q); | |
408 | ||
409 | for (i = 0; i < model->num_timebases; i++) { | |
410 | if (p != (*model->timebases)[i][0] || | |
411 | q != (*model->timebases)[i][1]) | |
412 | continue; | |
413 | state->timebase = i; | |
414 | g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q); | |
415 | g_snprintf(command, sizeof(command), | |
416 | (*model->scpi_dialect)[SCPI_CMD_SET_TIMEBASE], | |
417 | float_str); | |
418 | ||
419 | ret = sr_scpi_send(sdi->conn, command); | |
420 | update_sample_rate = TRUE; | |
421 | break; | |
422 | } | |
423 | break; | |
424 | case SR_CONF_HORIZ_TRIGGERPOS: | |
425 | tmp_d = g_variant_get_double(data); | |
426 | ||
427 | if (tmp_d < 0.0 || tmp_d > 1.0) | |
428 | return SR_ERR; | |
429 | ||
430 | state->horiz_triggerpos = tmp_d; | |
431 | tmp_d = -(tmp_d - 0.5) * | |
432 | ((double) (*model->timebases)[state->timebase][0] / | |
433 | (*model->timebases)[state->timebase][1]) | |
434 | * model->num_xdivs; | |
435 | ||
436 | g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d); | |
437 | g_snprintf(command, sizeof(command), | |
438 | (*model->scpi_dialect)[SCPI_CMD_SET_HORIZ_TRIGGERPOS], | |
439 | float_str); | |
440 | ||
441 | ret = sr_scpi_send(sdi->conn, command); | |
442 | break; | |
443 | case SR_CONF_TRIGGER_SLOPE: | |
444 | tmp = g_variant_get_string(data, NULL); | |
445 | ||
446 | if (!tmp || !(tmp[0] == 'f' || tmp[0] == 'r')) | |
447 | return SR_ERR_ARG; | |
448 | ||
449 | state->trigger_slope = (tmp[0] == 'r') ? 0 : 1; | |
450 | ||
451 | g_snprintf(command, sizeof(command), | |
452 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SLOPE], | |
453 | (state->trigger_slope == 0) ? "POS" : "NEG"); | |
454 | ||
455 | ret = sr_scpi_send(sdi->conn, command); | |
456 | break; | |
457 | case SR_CONF_COUPLING: | |
458 | if (cg_type == CG_NONE) { | |
459 | sr_err("No channel group specified."); | |
460 | return SR_ERR_CHANNEL_GROUP; | |
461 | } | |
462 | ||
463 | tmp = g_variant_get_string(data, NULL); | |
464 | ||
465 | for (i = 0; (*model->coupling_options)[i]; i++) { | |
466 | if (strcmp(tmp, (*model->coupling_options)[i]) != 0) | |
467 | continue; | |
468 | for (j = 1; j <= model->analog_channels; ++j) { | |
469 | if (cg != devc->analog_groups[j - 1]) | |
470 | continue; | |
471 | state->analog_channels[j-1].coupling = i; | |
472 | ||
473 | g_snprintf(command, sizeof(command), | |
474 | (*model->scpi_dialect)[SCPI_CMD_SET_COUPLING], | |
475 | j, tmp); | |
476 | ||
477 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
478 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
479 | return SR_ERR; | |
480 | break; | |
481 | } | |
482 | ||
483 | ret = SR_OK; | |
484 | break; | |
485 | } | |
486 | break; | |
487 | default: | |
488 | ret = SR_ERR_NA; | |
489 | break; | |
490 | } | |
491 | ||
492 | if (ret == SR_OK) | |
493 | ret = sr_scpi_get_opc(sdi->conn); | |
494 | ||
495 | if (ret == SR_OK && update_sample_rate) | |
496 | ret = hmo_update_sample_rate(sdi); | |
497 | ||
498 | return ret; | |
499 | } | |
500 | ||
501 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
502 | const struct sr_channel_group *cg) | |
503 | { | |
504 | int cg_type = CG_NONE; | |
505 | struct dev_context *devc = NULL; | |
506 | struct scope_config *model = NULL; | |
507 | ||
508 | if (sdi && (devc = sdi->priv)) { | |
509 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
510 | return SR_ERR; | |
511 | ||
512 | model = devc->model_config; | |
513 | } | |
514 | ||
515 | switch (key) { | |
516 | case SR_CONF_SCAN_OPTIONS: | |
517 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
518 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
519 | break; | |
520 | case SR_CONF_DEVICE_OPTIONS: | |
521 | if (cg_type == CG_NONE) { | |
522 | if (model) | |
523 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
524 | model->devopts, model->num_devopts, sizeof(uint32_t)); | |
525 | else | |
526 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
527 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
528 | } else if (cg_type == CG_ANALOG) { | |
529 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
530 | model->analog_devopts, model->num_analog_devopts, | |
531 | sizeof(uint32_t)); | |
532 | } else { | |
533 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
534 | NULL, 0, sizeof(uint32_t)); | |
535 | } | |
536 | break; | |
537 | case SR_CONF_COUPLING: | |
538 | if (cg_type == CG_NONE) | |
539 | return SR_ERR_CHANNEL_GROUP; | |
540 | *data = g_variant_new_strv(*model->coupling_options, | |
541 | g_strv_length((char **)*model->coupling_options)); | |
542 | break; | |
543 | case SR_CONF_TRIGGER_SOURCE: | |
544 | if (!model) | |
545 | return SR_ERR_ARG; | |
546 | *data = g_variant_new_strv(*model->trigger_sources, | |
547 | g_strv_length((char **)*model->trigger_sources)); | |
548 | break; | |
549 | case SR_CONF_TRIGGER_SLOPE: | |
550 | if (!model) | |
551 | return SR_ERR_ARG; | |
552 | *data = g_variant_new_strv(*model->trigger_slopes, | |
553 | g_strv_length((char **)*model->trigger_slopes)); | |
554 | break; | |
555 | case SR_CONF_TIMEBASE: | |
556 | if (!model) | |
557 | return SR_ERR_ARG; | |
558 | *data = build_tuples(model->timebases, model->num_timebases); | |
559 | break; | |
560 | case SR_CONF_VDIV: | |
561 | if (cg_type == CG_NONE) | |
562 | return SR_ERR_CHANNEL_GROUP; | |
563 | *data = build_tuples(model->vdivs, model->num_vdivs); | |
564 | break; | |
565 | default: | |
566 | return SR_ERR_NA; | |
567 | } | |
568 | ||
569 | return SR_OK; | |
570 | } | |
571 | ||
572 | SR_PRIV int hmo_request_data(const struct sr_dev_inst *sdi) | |
573 | { | |
574 | char command[MAX_COMMAND_SIZE]; | |
575 | struct sr_channel *ch; | |
576 | struct dev_context *devc; | |
577 | struct scope_config *model; | |
578 | ||
579 | devc = sdi->priv; | |
580 | model = devc->model_config; | |
581 | ||
582 | ch = devc->current_channel->data; | |
583 | ||
584 | switch (ch->type) { | |
585 | case SR_CHANNEL_ANALOG: | |
586 | g_snprintf(command, sizeof(command), | |
587 | (*model->scpi_dialect)[SCPI_CMD_GET_ANALOG_DATA], | |
588 | ch->index + 1); | |
589 | break; | |
590 | case SR_CHANNEL_LOGIC: | |
591 | g_snprintf(command, sizeof(command), | |
592 | (*model->scpi_dialect)[SCPI_CMD_GET_DIG_DATA], | |
593 | ch->index < 8 ? 1 : 2); | |
594 | break; | |
595 | default: | |
596 | sr_err("Invalid channel type."); | |
597 | break; | |
598 | } | |
599 | ||
600 | return sr_scpi_send(sdi->conn, command); | |
601 | } | |
602 | ||
603 | static int hmo_check_channels(GSList *channels) | |
604 | { | |
605 | GSList *l; | |
606 | struct sr_channel *ch; | |
607 | gboolean enabled_pod1, enabled_pod2, enabled_chan3, enabled_chan4; | |
608 | ||
609 | enabled_pod1 = enabled_pod2 = enabled_chan3 = enabled_chan4 = FALSE; | |
610 | ||
611 | for (l = channels; l; l = l->next) { | |
612 | ch = l->data; | |
613 | switch (ch->type) { | |
614 | case SR_CHANNEL_ANALOG: | |
615 | if (ch->index == 2) | |
616 | enabled_chan3 = TRUE; | |
617 | else if (ch->index == 3) | |
618 | enabled_chan4 = TRUE; | |
619 | break; | |
620 | case SR_CHANNEL_LOGIC: | |
621 | if (ch->index < 8) | |
622 | enabled_pod1 = TRUE; | |
623 | else | |
624 | enabled_pod2 = TRUE; | |
625 | break; | |
626 | default: | |
627 | return SR_ERR; | |
628 | } | |
629 | } | |
630 | ||
631 | if ((enabled_pod1 && enabled_chan3) || | |
632 | (enabled_pod2 && enabled_chan4)) | |
633 | return SR_ERR; | |
634 | ||
635 | return SR_OK; | |
636 | } | |
637 | ||
638 | static int hmo_setup_channels(const struct sr_dev_inst *sdi) | |
639 | { | |
640 | GSList *l; | |
641 | unsigned int i; | |
642 | gboolean *pod_enabled, setup_changed; | |
643 | char command[MAX_COMMAND_SIZE]; | |
644 | struct scope_state *state; | |
645 | struct scope_config *model; | |
646 | struct sr_channel *ch; | |
647 | struct dev_context *devc; | |
648 | struct sr_scpi_dev_inst *scpi; | |
649 | ||
650 | devc = sdi->priv; | |
651 | scpi = sdi->conn; | |
652 | state = devc->model_state; | |
653 | model = devc->model_config; | |
654 | setup_changed = FALSE; | |
655 | ||
656 | pod_enabled = g_try_malloc0(sizeof(gboolean) * model->digital_pods); | |
657 | ||
658 | for (l = sdi->channels; l; l = l->next) { | |
659 | ch = l->data; | |
660 | switch (ch->type) { | |
661 | case SR_CHANNEL_ANALOG: | |
662 | if (ch->enabled == state->analog_channels[ch->index].state) | |
663 | break; | |
664 | g_snprintf(command, sizeof(command), | |
665 | (*model->scpi_dialect)[SCPI_CMD_SET_ANALOG_CHAN_STATE], | |
666 | ch->index + 1, ch->enabled); | |
667 | ||
668 | if (sr_scpi_send(scpi, command) != SR_OK) | |
669 | return SR_ERR; | |
670 | state->analog_channels[ch->index].state = ch->enabled; | |
671 | setup_changed = TRUE; | |
672 | break; | |
673 | case SR_CHANNEL_LOGIC: | |
674 | /* | |
675 | * A digital POD needs to be enabled for every group of | |
676 | * 8 channels. | |
677 | */ | |
678 | if (ch->enabled) | |
679 | pod_enabled[ch->index < 8 ? 0 : 1] = TRUE; | |
680 | ||
681 | if (ch->enabled == state->digital_channels[ch->index]) | |
682 | break; | |
683 | g_snprintf(command, sizeof(command), | |
684 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_CHAN_STATE], | |
685 | ch->index, ch->enabled); | |
686 | ||
687 | if (sr_scpi_send(scpi, command) != SR_OK) | |
688 | return SR_ERR; | |
689 | ||
690 | state->digital_channels[ch->index] = ch->enabled; | |
691 | setup_changed = TRUE; | |
692 | break; | |
693 | default: | |
694 | return SR_ERR; | |
695 | } | |
696 | } | |
697 | ||
698 | for (i = 1; i <= model->digital_pods; ++i) { | |
699 | if (state->digital_pods[i - 1] == pod_enabled[i - 1]) | |
700 | continue; | |
701 | g_snprintf(command, sizeof(command), | |
702 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_STATE], | |
703 | i, pod_enabled[i - 1]); | |
704 | if (sr_scpi_send(scpi, command) != SR_OK) | |
705 | return SR_ERR; | |
706 | state->digital_pods[i - 1] = pod_enabled[i - 1]; | |
707 | setup_changed = TRUE; | |
708 | } | |
709 | ||
710 | g_free(pod_enabled); | |
711 | ||
712 | if (setup_changed && hmo_update_sample_rate(sdi) != SR_OK) | |
713 | return SR_ERR; | |
714 | ||
715 | return SR_OK; | |
716 | } | |
717 | ||
718 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) | |
719 | { | |
720 | GSList *l; | |
721 | gboolean digital_added; | |
722 | struct sr_channel *ch; | |
723 | struct dev_context *devc; | |
724 | struct sr_scpi_dev_inst *scpi; | |
725 | ||
726 | if (sdi->status != SR_ST_ACTIVE) | |
727 | return SR_ERR_DEV_CLOSED; | |
728 | ||
729 | scpi = sdi->conn; | |
730 | devc = sdi->priv; | |
731 | digital_added = FALSE; | |
732 | ||
733 | g_slist_free(devc->enabled_channels); | |
734 | devc->enabled_channels = NULL; | |
735 | ||
736 | for (l = sdi->channels; l; l = l->next) { | |
737 | ch = l->data; | |
738 | if (!ch->enabled) | |
739 | continue; | |
740 | /* Only add a single digital channel. */ | |
741 | if (ch->type != SR_CHANNEL_LOGIC || !digital_added) { | |
742 | devc->enabled_channels = g_slist_append( | |
743 | devc->enabled_channels, ch); | |
744 | if (ch->type == SR_CHANNEL_LOGIC) | |
745 | digital_added = TRUE; | |
746 | } | |
747 | } | |
748 | ||
749 | if (!devc->enabled_channels) | |
750 | return SR_ERR; | |
751 | ||
752 | if (hmo_check_channels(devc->enabled_channels) != SR_OK) { | |
753 | sr_err("Invalid channel configuration specified!"); | |
754 | return SR_ERR_NA; | |
755 | } | |
756 | ||
757 | if (hmo_setup_channels(sdi) != SR_OK) { | |
758 | sr_err("Failed to setup channel configuration!"); | |
759 | return SR_ERR; | |
760 | } | |
761 | ||
762 | sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50, | |
763 | hmo_receive_data, (void *)sdi); | |
764 | ||
765 | /* Send header packet to the session bus. */ | |
766 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
767 | ||
768 | devc->current_channel = devc->enabled_channels; | |
769 | ||
770 | return hmo_request_data(sdi); | |
771 | } | |
772 | ||
773 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
774 | { | |
775 | struct dev_context *devc; | |
776 | struct sr_scpi_dev_inst *scpi; | |
777 | struct sr_datafeed_packet packet; | |
778 | ||
779 | (void)cb_data; | |
780 | ||
781 | packet.type = SR_DF_END; | |
782 | packet.payload = NULL; | |
783 | sr_session_send(sdi, &packet); | |
784 | ||
785 | if (sdi->status != SR_ST_ACTIVE) | |
786 | return SR_ERR_DEV_CLOSED; | |
787 | ||
788 | devc = sdi->priv; | |
789 | ||
790 | devc->num_frames = 0; | |
791 | g_slist_free(devc->enabled_channels); | |
792 | devc->enabled_channels = NULL; | |
793 | scpi = sdi->conn; | |
794 | sr_scpi_source_remove(sdi->session, scpi); | |
795 | ||
796 | return SR_OK; | |
797 | } | |
798 | ||
799 | SR_PRIV struct sr_dev_driver hameg_hmo_driver_info = { | |
800 | .name = "hameg-hmo", | |
801 | .longname = "Hameg HMO", | |
802 | .api_version = 1, | |
803 | .init = init, | |
804 | .cleanup = cleanup, | |
805 | .scan = scan, | |
806 | .dev_list = dev_list, | |
807 | .dev_clear = dev_clear, | |
808 | .config_get = config_get, | |
809 | .config_set = config_set, | |
810 | .config_list = config_list, | |
811 | .dev_open = dev_open, | |
812 | .dev_close = dev_close, | |
813 | .dev_acquisition_start = dev_acquisition_start, | |
814 | .dev_acquisition_stop = dev_acquisition_stop, | |
815 | .priv = NULL, | |
816 | }; |