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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 | SR_PRIV struct sr_dev_driver hameg_hmo_driver_info; | |
28 | ||
29 | static const char *manufacturers[] = { | |
30 | "HAMEG", | |
31 | }; | |
32 | ||
33 | static const uint32_t drvopts[] = { | |
34 | SR_CONF_OSCILLOSCOPE, | |
35 | }; | |
36 | ||
37 | static const uint32_t scanopts[] = { | |
38 | SR_CONF_CONN, | |
39 | SR_CONF_SERIALCOMM, | |
40 | }; | |
41 | ||
42 | enum { | |
43 | CG_INVALID = -1, | |
44 | CG_NONE, | |
45 | CG_ANALOG, | |
46 | CG_DIGITAL, | |
47 | }; | |
48 | ||
49 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) | |
50 | { | |
51 | return std_init(sr_ctx, di, LOG_PREFIX); | |
52 | } | |
53 | ||
54 | static int check_manufacturer(const char *manufacturer) | |
55 | { | |
56 | unsigned int i; | |
57 | ||
58 | for (i = 0; i < ARRAY_SIZE(manufacturers); ++i) | |
59 | if (!strcmp(manufacturer, manufacturers[i])) | |
60 | return SR_OK; | |
61 | ||
62 | return SR_ERR; | |
63 | } | |
64 | ||
65 | static struct sr_dev_inst *hmo_probe_serial_device(struct sr_scpi_dev_inst *scpi) | |
66 | { | |
67 | struct sr_dev_inst *sdi; | |
68 | struct dev_context *devc; | |
69 | struct sr_scpi_hw_info *hw_info; | |
70 | ||
71 | sdi = NULL; | |
72 | devc = NULL; | |
73 | hw_info = NULL; | |
74 | ||
75 | if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) { | |
76 | sr_info("Couldn't get IDN response."); | |
77 | goto fail; | |
78 | } | |
79 | ||
80 | if (check_manufacturer(hw_info->manufacturer) != SR_OK) | |
81 | goto fail; | |
82 | ||
83 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
84 | sdi->status = SR_ST_ACTIVE; | |
85 | sdi->vendor = g_strdup(hw_info->manufacturer); | |
86 | sdi->model = g_strdup(hw_info->model); | |
87 | sdi->version = g_strdup(hw_info->firmware_version); | |
88 | sdi->serial_num = g_strdup(hw_info->serial_number); | |
89 | sdi->driver = &hameg_hmo_driver_info; | |
90 | sdi->inst_type = SR_INST_SCPI; | |
91 | sdi->conn = scpi; | |
92 | ||
93 | sr_scpi_hw_info_free(hw_info); | |
94 | hw_info = NULL; | |
95 | ||
96 | devc = g_malloc0(sizeof(struct dev_context)); | |
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 | g_free(devc); | |
115 | ||
116 | return NULL; | |
117 | } | |
118 | ||
119 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
120 | { | |
121 | return sr_scpi_scan(di->context, options, hmo_probe_serial_device); | |
122 | } | |
123 | ||
124 | static GSList *dev_list(const struct sr_dev_driver *di) | |
125 | { | |
126 | return ((struct drv_context *)(di->context))->instances; | |
127 | } | |
128 | ||
129 | static void clear_helper(void *priv) | |
130 | { | |
131 | struct dev_context *devc; | |
132 | ||
133 | devc = priv; | |
134 | ||
135 | hmo_scope_state_free(devc->model_state); | |
136 | ||
137 | g_free(devc->analog_groups); | |
138 | g_free(devc->digital_groups); | |
139 | ||
140 | g_free(devc); | |
141 | } | |
142 | ||
143 | static int dev_clear(const struct sr_dev_driver *di) | |
144 | { | |
145 | return std_dev_clear(di, clear_helper); | |
146 | } | |
147 | ||
148 | static int dev_open(struct sr_dev_inst *sdi) | |
149 | { | |
150 | if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK) | |
151 | return SR_ERR; | |
152 | ||
153 | if (hmo_scope_state_get(sdi) != SR_OK) | |
154 | return SR_ERR; | |
155 | ||
156 | sdi->status = SR_ST_ACTIVE; | |
157 | ||
158 | return SR_OK; | |
159 | } | |
160 | ||
161 | static int dev_close(struct sr_dev_inst *sdi) | |
162 | { | |
163 | if (sdi->status == SR_ST_INACTIVE) | |
164 | return SR_OK; | |
165 | ||
166 | sr_scpi_close(sdi->conn); | |
167 | ||
168 | sdi->status = SR_ST_INACTIVE; | |
169 | ||
170 | return SR_OK; | |
171 | } | |
172 | ||
173 | static int cleanup(const struct sr_dev_driver *di) | |
174 | { | |
175 | dev_clear(di); | |
176 | ||
177 | return SR_OK; | |
178 | } | |
179 | ||
180 | static int check_channel_group(struct dev_context *devc, | |
181 | const struct sr_channel_group *cg) | |
182 | { | |
183 | unsigned int i; | |
184 | const struct scope_config *model; | |
185 | ||
186 | model = devc->model_config; | |
187 | ||
188 | if (!cg) | |
189 | return CG_NONE; | |
190 | ||
191 | for (i = 0; i < model->analog_channels; ++i) | |
192 | if (cg == devc->analog_groups[i]) | |
193 | return CG_ANALOG; | |
194 | ||
195 | for (i = 0; i < model->digital_pods; ++i) | |
196 | if (cg == devc->digital_groups[i]) | |
197 | return CG_DIGITAL; | |
198 | ||
199 | sr_err("Invalid channel group specified."); | |
200 | ||
201 | return CG_INVALID; | |
202 | } | |
203 | ||
204 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
205 | const struct sr_channel_group *cg) | |
206 | { | |
207 | int ret, cg_type; | |
208 | unsigned int i; | |
209 | struct dev_context *devc; | |
210 | const struct scope_config *model; | |
211 | struct scope_state *state; | |
212 | ||
213 | if (!sdi || !(devc = sdi->priv)) | |
214 | return SR_ERR_ARG; | |
215 | ||
216 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
217 | return SR_ERR; | |
218 | ||
219 | ret = SR_ERR_NA; | |
220 | model = devc->model_config; | |
221 | state = devc->model_state; | |
222 | ||
223 | switch (key) { | |
224 | case SR_CONF_NUM_HDIV: | |
225 | *data = g_variant_new_int32(model->num_xdivs); | |
226 | ret = SR_OK; | |
227 | break; | |
228 | case SR_CONF_TIMEBASE: | |
229 | *data = g_variant_new("(tt)", (*model->timebases)[state->timebase][0], | |
230 | (*model->timebases)[state->timebase][1]); | |
231 | ret = SR_OK; | |
232 | break; | |
233 | case SR_CONF_NUM_VDIV: | |
234 | if (cg_type == CG_NONE) { | |
235 | sr_err("No channel group specified."); | |
236 | return SR_ERR_CHANNEL_GROUP; | |
237 | } else if (cg_type == CG_ANALOG) { | |
238 | for (i = 0; i < model->analog_channels; ++i) { | |
239 | if (cg != devc->analog_groups[i]) | |
240 | continue; | |
241 | *data = g_variant_new_int32(model->num_ydivs); | |
242 | ret = SR_OK; | |
243 | break; | |
244 | } | |
245 | ||
246 | } else { | |
247 | ret = SR_ERR_NA; | |
248 | } | |
249 | break; | |
250 | case SR_CONF_VDIV: | |
251 | if (cg_type == CG_NONE) { | |
252 | sr_err("No channel group specified."); | |
253 | return SR_ERR_CHANNEL_GROUP; | |
254 | } else if (cg_type == CG_ANALOG) { | |
255 | for (i = 0; i < model->analog_channels; ++i) { | |
256 | if (cg != devc->analog_groups[i]) | |
257 | continue; | |
258 | *data = g_variant_new("(tt)", | |
259 | (*model->vdivs)[state->analog_channels[i].vdiv][0], | |
260 | (*model->vdivs)[state->analog_channels[i].vdiv][1]); | |
261 | ret = SR_OK; | |
262 | break; | |
263 | } | |
264 | ||
265 | } else { | |
266 | ret = SR_ERR_NA; | |
267 | } | |
268 | break; | |
269 | case SR_CONF_TRIGGER_SOURCE: | |
270 | *data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]); | |
271 | ret = SR_OK; | |
272 | break; | |
273 | case SR_CONF_TRIGGER_SLOPE: | |
274 | *data = g_variant_new_string((*model->trigger_slopes)[state->trigger_slope]); | |
275 | ret = SR_OK; | |
276 | break; | |
277 | case SR_CONF_HORIZ_TRIGGERPOS: | |
278 | *data = g_variant_new_double(state->horiz_triggerpos); | |
279 | ret = SR_OK; | |
280 | break; | |
281 | case SR_CONF_COUPLING: | |
282 | if (cg_type == CG_NONE) { | |
283 | sr_err("No channel group specified."); | |
284 | return SR_ERR_CHANNEL_GROUP; | |
285 | } else if (cg_type == CG_ANALOG) { | |
286 | for (i = 0; i < model->analog_channels; ++i) { | |
287 | if (cg != devc->analog_groups[i]) | |
288 | continue; | |
289 | *data = g_variant_new_string((*model->coupling_options)[state->analog_channels[i].coupling]); | |
290 | ret = SR_OK; | |
291 | break; | |
292 | } | |
293 | ||
294 | } else { | |
295 | ret = SR_ERR_NA; | |
296 | } | |
297 | break; | |
298 | case SR_CONF_SAMPLERATE: | |
299 | *data = g_variant_new_uint64(state->sample_rate); | |
300 | ret = SR_OK; | |
301 | break; | |
302 | default: | |
303 | ret = SR_ERR_NA; | |
304 | } | |
305 | ||
306 | return ret; | |
307 | } | |
308 | ||
309 | static GVariant *build_tuples(const uint64_t (*array)[][2], unsigned int n) | |
310 | { | |
311 | unsigned int i; | |
312 | GVariant *rational[2]; | |
313 | GVariantBuilder gvb; | |
314 | ||
315 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
316 | ||
317 | for (i = 0; i < n; i++) { | |
318 | rational[0] = g_variant_new_uint64((*array)[i][0]); | |
319 | rational[1] = g_variant_new_uint64((*array)[i][1]); | |
320 | ||
321 | /* FIXME: Valgrind reports a memory leak here. */ | |
322 | g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2)); | |
323 | } | |
324 | ||
325 | return g_variant_builder_end(&gvb); | |
326 | } | |
327 | ||
328 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
329 | const struct sr_channel_group *cg) | |
330 | { | |
331 | int ret, cg_type; | |
332 | unsigned int i, j; | |
333 | char command[MAX_COMMAND_SIZE], float_str[30]; | |
334 | struct dev_context *devc; | |
335 | const struct scope_config *model; | |
336 | struct scope_state *state; | |
337 | const char *tmp; | |
338 | uint64_t p, q; | |
339 | double tmp_d; | |
340 | gboolean update_sample_rate; | |
341 | ||
342 | if (!sdi || !(devc = sdi->priv)) | |
343 | return SR_ERR_ARG; | |
344 | ||
345 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
346 | return SR_ERR; | |
347 | ||
348 | model = devc->model_config; | |
349 | state = devc->model_state; | |
350 | update_sample_rate = FALSE; | |
351 | ||
352 | ret = SR_ERR_NA; | |
353 | ||
354 | switch (key) { | |
355 | case SR_CONF_LIMIT_FRAMES: | |
356 | devc->frame_limit = g_variant_get_uint64(data); | |
357 | ret = SR_OK; | |
358 | break; | |
359 | case SR_CONF_TRIGGER_SOURCE: | |
360 | tmp = g_variant_get_string(data, NULL); | |
361 | for (i = 0; (*model->trigger_sources)[i]; i++) { | |
362 | if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0) | |
363 | continue; | |
364 | state->trigger_source = i; | |
365 | g_snprintf(command, sizeof(command), | |
366 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SOURCE], | |
367 | (*model->trigger_sources)[i]); | |
368 | ||
369 | ret = sr_scpi_send(sdi->conn, command); | |
370 | break; | |
371 | } | |
372 | break; | |
373 | case SR_CONF_VDIV: | |
374 | if (cg_type == CG_NONE) { | |
375 | sr_err("No channel group specified."); | |
376 | return SR_ERR_CHANNEL_GROUP; | |
377 | } | |
378 | ||
379 | g_variant_get(data, "(tt)", &p, &q); | |
380 | ||
381 | for (i = 0; i < model->num_vdivs; i++) { | |
382 | if (p != (*model->vdivs)[i][0] || | |
383 | q != (*model->vdivs)[i][1]) | |
384 | continue; | |
385 | for (j = 1; j <= model->analog_channels; ++j) { | |
386 | if (cg != devc->analog_groups[j - 1]) | |
387 | continue; | |
388 | state->analog_channels[j - 1].vdiv = i; | |
389 | g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q); | |
390 | g_snprintf(command, sizeof(command), | |
391 | (*model->scpi_dialect)[SCPI_CMD_SET_VERTICAL_DIV], | |
392 | j, float_str); | |
393 | ||
394 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
395 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
396 | return SR_ERR; | |
397 | ||
398 | break; | |
399 | } | |
400 | ||
401 | ret = SR_OK; | |
402 | break; | |
403 | } | |
404 | break; | |
405 | case SR_CONF_TIMEBASE: | |
406 | g_variant_get(data, "(tt)", &p, &q); | |
407 | ||
408 | for (i = 0; i < model->num_timebases; i++) { | |
409 | if (p != (*model->timebases)[i][0] || | |
410 | q != (*model->timebases)[i][1]) | |
411 | continue; | |
412 | state->timebase = i; | |
413 | g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q); | |
414 | g_snprintf(command, sizeof(command), | |
415 | (*model->scpi_dialect)[SCPI_CMD_SET_TIMEBASE], | |
416 | float_str); | |
417 | ||
418 | ret = sr_scpi_send(sdi->conn, command); | |
419 | update_sample_rate = TRUE; | |
420 | break; | |
421 | } | |
422 | break; | |
423 | case SR_CONF_HORIZ_TRIGGERPOS: | |
424 | tmp_d = g_variant_get_double(data); | |
425 | ||
426 | if (tmp_d < 0.0 || tmp_d > 1.0) | |
427 | return SR_ERR; | |
428 | ||
429 | state->horiz_triggerpos = tmp_d; | |
430 | tmp_d = -(tmp_d - 0.5) * | |
431 | ((double) (*model->timebases)[state->timebase][0] / | |
432 | (*model->timebases)[state->timebase][1]) | |
433 | * model->num_xdivs; | |
434 | ||
435 | g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d); | |
436 | g_snprintf(command, sizeof(command), | |
437 | (*model->scpi_dialect)[SCPI_CMD_SET_HORIZ_TRIGGERPOS], | |
438 | float_str); | |
439 | ||
440 | ret = sr_scpi_send(sdi->conn, command); | |
441 | break; | |
442 | case SR_CONF_TRIGGER_SLOPE: | |
443 | tmp = g_variant_get_string(data, NULL); | |
444 | ||
445 | if (!tmp || !(tmp[0] == 'f' || tmp[0] == 'r')) | |
446 | return SR_ERR_ARG; | |
447 | ||
448 | state->trigger_slope = (tmp[0] == 'r') ? 0 : 1; | |
449 | ||
450 | g_snprintf(command, sizeof(command), | |
451 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SLOPE], | |
452 | (state->trigger_slope == 0) ? "POS" : "NEG"); | |
453 | ||
454 | ret = sr_scpi_send(sdi->conn, command); | |
455 | break; | |
456 | case SR_CONF_COUPLING: | |
457 | if (cg_type == CG_NONE) { | |
458 | sr_err("No channel group specified."); | |
459 | return SR_ERR_CHANNEL_GROUP; | |
460 | } | |
461 | ||
462 | tmp = g_variant_get_string(data, NULL); | |
463 | ||
464 | for (i = 0; (*model->coupling_options)[i]; i++) { | |
465 | if (strcmp(tmp, (*model->coupling_options)[i]) != 0) | |
466 | continue; | |
467 | for (j = 1; j <= model->analog_channels; ++j) { | |
468 | if (cg != devc->analog_groups[j - 1]) | |
469 | continue; | |
470 | state->analog_channels[j-1].coupling = i; | |
471 | ||
472 | g_snprintf(command, sizeof(command), | |
473 | (*model->scpi_dialect)[SCPI_CMD_SET_COUPLING], | |
474 | j, tmp); | |
475 | ||
476 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
477 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
478 | return SR_ERR; | |
479 | break; | |
480 | } | |
481 | ||
482 | ret = SR_OK; | |
483 | break; | |
484 | } | |
485 | break; | |
486 | default: | |
487 | ret = SR_ERR_NA; | |
488 | break; | |
489 | } | |
490 | ||
491 | if (ret == SR_OK) | |
492 | ret = sr_scpi_get_opc(sdi->conn); | |
493 | ||
494 | if (ret == SR_OK && update_sample_rate) | |
495 | ret = hmo_update_sample_rate(sdi); | |
496 | ||
497 | return ret; | |
498 | } | |
499 | ||
500 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
501 | const struct sr_channel_group *cg) | |
502 | { | |
503 | int cg_type = CG_NONE; | |
504 | struct dev_context *devc = NULL; | |
505 | const struct scope_config *model = NULL; | |
506 | ||
507 | if (sdi && (devc = sdi->priv)) { | |
508 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
509 | return SR_ERR; | |
510 | ||
511 | model = devc->model_config; | |
512 | } | |
513 | ||
514 | switch (key) { | |
515 | case SR_CONF_SCAN_OPTIONS: | |
516 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
517 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
518 | break; | |
519 | case SR_CONF_DEVICE_OPTIONS: | |
520 | if (cg_type == CG_NONE) { | |
521 | if (model) | |
522 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
523 | model->devopts, model->num_devopts, sizeof(uint32_t)); | |
524 | else | |
525 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
526 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
527 | } else if (cg_type == CG_ANALOG) { | |
528 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
529 | model->analog_devopts, model->num_analog_devopts, | |
530 | sizeof(uint32_t)); | |
531 | } else { | |
532 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
533 | NULL, 0, sizeof(uint32_t)); | |
534 | } | |
535 | break; | |
536 | case SR_CONF_COUPLING: | |
537 | if (cg_type == CG_NONE) | |
538 | return SR_ERR_CHANNEL_GROUP; | |
539 | *data = g_variant_new_strv(*model->coupling_options, | |
540 | g_strv_length((char **)*model->coupling_options)); | |
541 | break; | |
542 | case SR_CONF_TRIGGER_SOURCE: | |
543 | if (!model) | |
544 | return SR_ERR_ARG; | |
545 | *data = g_variant_new_strv(*model->trigger_sources, | |
546 | g_strv_length((char **)*model->trigger_sources)); | |
547 | break; | |
548 | case SR_CONF_TRIGGER_SLOPE: | |
549 | if (!model) | |
550 | return SR_ERR_ARG; | |
551 | *data = g_variant_new_strv(*model->trigger_slopes, | |
552 | g_strv_length((char **)*model->trigger_slopes)); | |
553 | break; | |
554 | case SR_CONF_TIMEBASE: | |
555 | if (!model) | |
556 | return SR_ERR_ARG; | |
557 | *data = build_tuples(model->timebases, model->num_timebases); | |
558 | break; | |
559 | case SR_CONF_VDIV: | |
560 | if (cg_type == CG_NONE) | |
561 | return SR_ERR_CHANNEL_GROUP; | |
562 | *data = build_tuples(model->vdivs, model->num_vdivs); | |
563 | break; | |
564 | default: | |
565 | return SR_ERR_NA; | |
566 | } | |
567 | ||
568 | return SR_OK; | |
569 | } | |
570 | ||
571 | SR_PRIV int hmo_request_data(const struct sr_dev_inst *sdi) | |
572 | { | |
573 | char command[MAX_COMMAND_SIZE]; | |
574 | struct sr_channel *ch; | |
575 | struct dev_context *devc; | |
576 | const struct scope_config *model; | |
577 | ||
578 | devc = sdi->priv; | |
579 | model = devc->model_config; | |
580 | ||
581 | ch = devc->current_channel->data; | |
582 | ||
583 | switch (ch->type) { | |
584 | case SR_CHANNEL_ANALOG: | |
585 | g_snprintf(command, sizeof(command), | |
586 | (*model->scpi_dialect)[SCPI_CMD_GET_ANALOG_DATA], | |
587 | ch->index + 1); | |
588 | break; | |
589 | case SR_CHANNEL_LOGIC: | |
590 | g_snprintf(command, sizeof(command), | |
591 | (*model->scpi_dialect)[SCPI_CMD_GET_DIG_DATA], | |
592 | ch->index < 8 ? 1 : 2); | |
593 | break; | |
594 | default: | |
595 | sr_err("Invalid channel type."); | |
596 | break; | |
597 | } | |
598 | ||
599 | return sr_scpi_send(sdi->conn, command); | |
600 | } | |
601 | ||
602 | static int hmo_check_channels(GSList *channels) | |
603 | { | |
604 | GSList *l; | |
605 | struct sr_channel *ch; | |
606 | gboolean enabled_pod1, enabled_pod2, enabled_chan3, enabled_chan4; | |
607 | ||
608 | enabled_pod1 = enabled_pod2 = enabled_chan3 = enabled_chan4 = FALSE; | |
609 | ||
610 | for (l = channels; l; l = l->next) { | |
611 | ch = l->data; | |
612 | switch (ch->type) { | |
613 | case SR_CHANNEL_ANALOG: | |
614 | if (ch->index == 2) | |
615 | enabled_chan3 = TRUE; | |
616 | else if (ch->index == 3) | |
617 | enabled_chan4 = TRUE; | |
618 | break; | |
619 | case SR_CHANNEL_LOGIC: | |
620 | if (ch->index < 8) | |
621 | enabled_pod1 = TRUE; | |
622 | else | |
623 | enabled_pod2 = TRUE; | |
624 | break; | |
625 | default: | |
626 | return SR_ERR; | |
627 | } | |
628 | } | |
629 | ||
630 | if ((enabled_pod1 && enabled_chan3) || | |
631 | (enabled_pod2 && enabled_chan4)) | |
632 | return SR_ERR; | |
633 | ||
634 | return SR_OK; | |
635 | } | |
636 | ||
637 | static int hmo_setup_channels(const struct sr_dev_inst *sdi) | |
638 | { | |
639 | GSList *l; | |
640 | unsigned int i; | |
641 | gboolean *pod_enabled, setup_changed; | |
642 | char command[MAX_COMMAND_SIZE]; | |
643 | struct scope_state *state; | |
644 | const struct scope_config *model; | |
645 | struct sr_channel *ch; | |
646 | struct dev_context *devc; | |
647 | struct sr_scpi_dev_inst *scpi; | |
648 | ||
649 | devc = sdi->priv; | |
650 | scpi = sdi->conn; | |
651 | state = devc->model_state; | |
652 | model = devc->model_config; | |
653 | setup_changed = FALSE; | |
654 | ||
655 | pod_enabled = g_try_malloc0(sizeof(gboolean) * model->digital_pods); | |
656 | ||
657 | for (l = sdi->channels; l; l = l->next) { | |
658 | ch = l->data; | |
659 | switch (ch->type) { | |
660 | case SR_CHANNEL_ANALOG: | |
661 | if (ch->enabled == state->analog_channels[ch->index].state) | |
662 | break; | |
663 | g_snprintf(command, sizeof(command), | |
664 | (*model->scpi_dialect)[SCPI_CMD_SET_ANALOG_CHAN_STATE], | |
665 | ch->index + 1, ch->enabled); | |
666 | ||
667 | if (sr_scpi_send(scpi, command) != SR_OK) | |
668 | return SR_ERR; | |
669 | state->analog_channels[ch->index].state = ch->enabled; | |
670 | setup_changed = TRUE; | |
671 | break; | |
672 | case SR_CHANNEL_LOGIC: | |
673 | /* | |
674 | * A digital POD needs to be enabled for every group of | |
675 | * 8 channels. | |
676 | */ | |
677 | if (ch->enabled) | |
678 | pod_enabled[ch->index < 8 ? 0 : 1] = TRUE; | |
679 | ||
680 | if (ch->enabled == state->digital_channels[ch->index]) | |
681 | break; | |
682 | g_snprintf(command, sizeof(command), | |
683 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_CHAN_STATE], | |
684 | ch->index, ch->enabled); | |
685 | ||
686 | if (sr_scpi_send(scpi, command) != SR_OK) | |
687 | return SR_ERR; | |
688 | ||
689 | state->digital_channels[ch->index] = ch->enabled; | |
690 | setup_changed = TRUE; | |
691 | break; | |
692 | default: | |
693 | return SR_ERR; | |
694 | } | |
695 | } | |
696 | ||
697 | for (i = 1; i <= model->digital_pods; ++i) { | |
698 | if (state->digital_pods[i - 1] == pod_enabled[i - 1]) | |
699 | continue; | |
700 | g_snprintf(command, sizeof(command), | |
701 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_STATE], | |
702 | i, pod_enabled[i - 1]); | |
703 | if (sr_scpi_send(scpi, command) != SR_OK) | |
704 | return SR_ERR; | |
705 | state->digital_pods[i - 1] = pod_enabled[i - 1]; | |
706 | setup_changed = TRUE; | |
707 | } | |
708 | ||
709 | g_free(pod_enabled); | |
710 | ||
711 | if (setup_changed && hmo_update_sample_rate(sdi) != SR_OK) | |
712 | return SR_ERR; | |
713 | ||
714 | return SR_OK; | |
715 | } | |
716 | ||
717 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) | |
718 | { | |
719 | GSList *l; | |
720 | gboolean digital_added; | |
721 | struct sr_channel *ch; | |
722 | struct dev_context *devc; | |
723 | struct sr_scpi_dev_inst *scpi; | |
724 | ||
725 | if (sdi->status != SR_ST_ACTIVE) | |
726 | return SR_ERR_DEV_CLOSED; | |
727 | ||
728 | scpi = sdi->conn; | |
729 | devc = sdi->priv; | |
730 | digital_added = FALSE; | |
731 | ||
732 | g_slist_free(devc->enabled_channels); | |
733 | devc->enabled_channels = NULL; | |
734 | ||
735 | for (l = sdi->channels; l; l = l->next) { | |
736 | ch = l->data; | |
737 | if (!ch->enabled) | |
738 | continue; | |
739 | /* Only add a single digital channel. */ | |
740 | if (ch->type != SR_CHANNEL_LOGIC || !digital_added) { | |
741 | devc->enabled_channels = g_slist_append( | |
742 | devc->enabled_channels, ch); | |
743 | if (ch->type == SR_CHANNEL_LOGIC) | |
744 | digital_added = TRUE; | |
745 | } | |
746 | } | |
747 | ||
748 | if (!devc->enabled_channels) | |
749 | return SR_ERR; | |
750 | ||
751 | if (hmo_check_channels(devc->enabled_channels) != SR_OK) { | |
752 | sr_err("Invalid channel configuration specified!"); | |
753 | return SR_ERR_NA; | |
754 | } | |
755 | ||
756 | if (hmo_setup_channels(sdi) != SR_OK) { | |
757 | sr_err("Failed to setup channel configuration!"); | |
758 | return SR_ERR; | |
759 | } | |
760 | ||
761 | sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50, | |
762 | hmo_receive_data, (void *)sdi); | |
763 | ||
764 | /* Send header packet to the session bus. */ | |
765 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
766 | ||
767 | devc->current_channel = devc->enabled_channels; | |
768 | ||
769 | return hmo_request_data(sdi); | |
770 | } | |
771 | ||
772 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
773 | { | |
774 | struct dev_context *devc; | |
775 | struct sr_scpi_dev_inst *scpi; | |
776 | struct sr_datafeed_packet packet; | |
777 | ||
778 | (void)cb_data; | |
779 | ||
780 | packet.type = SR_DF_END; | |
781 | packet.payload = NULL; | |
782 | sr_session_send(sdi, &packet); | |
783 | ||
784 | if (sdi->status != SR_ST_ACTIVE) | |
785 | return SR_ERR_DEV_CLOSED; | |
786 | ||
787 | devc = sdi->priv; | |
788 | ||
789 | devc->num_frames = 0; | |
790 | g_slist_free(devc->enabled_channels); | |
791 | devc->enabled_channels = NULL; | |
792 | scpi = sdi->conn; | |
793 | sr_scpi_source_remove(sdi->session, scpi); | |
794 | ||
795 | return SR_OK; | |
796 | } | |
797 | ||
798 | SR_PRIV struct sr_dev_driver hameg_hmo_driver_info = { | |
799 | .name = "hameg-hmo", | |
800 | .longname = "Hameg HMO", | |
801 | .api_version = 1, | |
802 | .init = init, | |
803 | .cleanup = cleanup, | |
804 | .scan = scan, | |
805 | .dev_list = dev_list, | |
806 | .dev_clear = dev_clear, | |
807 | .config_get = config_get, | |
808 | .config_set = config_set, | |
809 | .config_list = config_list, | |
810 | .dev_open = dev_open, | |
811 | .dev_close = dev_close, | |
812 | .dev_acquisition_start = dev_acquisition_start, | |
813 | .dev_acquisition_stop = dev_acquisition_stop, | |
814 | .context = NULL, | |
815 | }; |