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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 scanopts[] = { | |
35 | SR_CONF_CONN, | |
36 | SR_CONF_SERIALCOMM, | |
37 | }; | |
38 | ||
39 | static const uint32_t drvopts[] = { | |
40 | SR_CONF_OSCILLOSCOPE, | |
41 | }; | |
42 | ||
43 | enum { | |
44 | CG_INVALID = -1, | |
45 | CG_NONE, | |
46 | CG_ANALOG, | |
47 | CG_DIGITAL, | |
48 | }; | |
49 | ||
50 | static struct sr_dev_inst *hmo_probe_serial_device(struct sr_scpi_dev_inst *scpi) | |
51 | { | |
52 | struct sr_dev_inst *sdi; | |
53 | struct dev_context *devc; | |
54 | struct sr_scpi_hw_info *hw_info; | |
55 | ||
56 | sdi = NULL; | |
57 | devc = NULL; | |
58 | hw_info = NULL; | |
59 | ||
60 | if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) { | |
61 | sr_info("Couldn't get IDN response."); | |
62 | goto fail; | |
63 | } | |
64 | ||
65 | if (std_str_idx_s(hw_info->manufacturer, ARRAY_AND_SIZE(manufacturers)) < 0) | |
66 | goto fail; | |
67 | ||
68 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
69 | sdi->vendor = g_strdup(hw_info->manufacturer); | |
70 | sdi->model = g_strdup(hw_info->model); | |
71 | sdi->version = g_strdup(hw_info->firmware_version); | |
72 | sdi->serial_num = g_strdup(hw_info->serial_number); | |
73 | sdi->driver = &hameg_hmo_driver_info; | |
74 | sdi->inst_type = SR_INST_SCPI; | |
75 | sdi->conn = scpi; | |
76 | ||
77 | sr_scpi_hw_info_free(hw_info); | |
78 | hw_info = NULL; | |
79 | ||
80 | devc = g_malloc0(sizeof(struct dev_context)); | |
81 | ||
82 | sdi->priv = devc; | |
83 | ||
84 | if (hmo_init_device(sdi) != SR_OK) | |
85 | goto fail; | |
86 | ||
87 | return sdi; | |
88 | ||
89 | fail: | |
90 | sr_scpi_hw_info_free(hw_info); | |
91 | sr_dev_inst_free(sdi); | |
92 | g_free(devc); | |
93 | ||
94 | return NULL; | |
95 | } | |
96 | ||
97 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
98 | { | |
99 | return sr_scpi_scan(di->context, options, hmo_probe_serial_device); | |
100 | } | |
101 | ||
102 | static void clear_helper(struct dev_context *devc) | |
103 | { | |
104 | hmo_scope_state_free(devc->model_state); | |
105 | g_free(devc->analog_groups); | |
106 | g_free(devc->digital_groups); | |
107 | } | |
108 | ||
109 | static int dev_clear(const struct sr_dev_driver *di) | |
110 | { | |
111 | return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); | |
112 | } | |
113 | ||
114 | static int dev_open(struct sr_dev_inst *sdi) | |
115 | { | |
116 | if (sr_scpi_open(sdi->conn) != SR_OK) | |
117 | return SR_ERR; | |
118 | ||
119 | if (hmo_scope_state_get(sdi) != SR_OK) | |
120 | return SR_ERR; | |
121 | ||
122 | return SR_OK; | |
123 | } | |
124 | ||
125 | static int dev_close(struct sr_dev_inst *sdi) | |
126 | { | |
127 | return sr_scpi_close(sdi->conn); | |
128 | } | |
129 | ||
130 | static int check_channel_group(struct dev_context *devc, | |
131 | const struct sr_channel_group *cg) | |
132 | { | |
133 | unsigned int i; | |
134 | const struct scope_config *model; | |
135 | ||
136 | model = devc->model_config; | |
137 | ||
138 | if (!cg) | |
139 | return CG_NONE; | |
140 | ||
141 | for (i = 0; i < model->analog_channels; i++) | |
142 | if (cg == devc->analog_groups[i]) | |
143 | return CG_ANALOG; | |
144 | ||
145 | for (i = 0; i < model->digital_pods; i++) | |
146 | if (cg == devc->digital_groups[i]) | |
147 | return CG_DIGITAL; | |
148 | ||
149 | sr_err("Invalid channel group specified."); | |
150 | ||
151 | return CG_INVALID; | |
152 | } | |
153 | ||
154 | static int config_get(uint32_t key, GVariant **data, | |
155 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
156 | { | |
157 | int ret, cg_type; | |
158 | unsigned int i; | |
159 | struct dev_context *devc; | |
160 | const struct scope_config *model; | |
161 | struct scope_state *state; | |
162 | ||
163 | if (!sdi) | |
164 | return SR_ERR_ARG; | |
165 | ||
166 | devc = sdi->priv; | |
167 | ||
168 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
169 | return SR_ERR; | |
170 | ||
171 | ret = SR_ERR_NA; | |
172 | model = devc->model_config; | |
173 | state = devc->model_state; | |
174 | ||
175 | switch (key) { | |
176 | case SR_CONF_NUM_HDIV: | |
177 | *data = g_variant_new_int32(model->num_xdivs); | |
178 | ret = SR_OK; | |
179 | break; | |
180 | case SR_CONF_TIMEBASE: | |
181 | *data = g_variant_new("(tt)", (*model->timebases)[state->timebase][0], | |
182 | (*model->timebases)[state->timebase][1]); | |
183 | ret = SR_OK; | |
184 | break; | |
185 | case SR_CONF_NUM_VDIV: | |
186 | if (cg_type == CG_NONE) { | |
187 | return SR_ERR_CHANNEL_GROUP; | |
188 | } else if (cg_type == CG_ANALOG) { | |
189 | for (i = 0; i < model->analog_channels; i++) { | |
190 | if (cg != devc->analog_groups[i]) | |
191 | continue; | |
192 | *data = g_variant_new_int32(model->num_ydivs); | |
193 | ret = SR_OK; | |
194 | break; | |
195 | } | |
196 | ||
197 | } else { | |
198 | ret = SR_ERR_NA; | |
199 | } | |
200 | break; | |
201 | case SR_CONF_VDIV: | |
202 | if (cg_type == CG_NONE) { | |
203 | return SR_ERR_CHANNEL_GROUP; | |
204 | } else if (cg_type == CG_ANALOG) { | |
205 | for (i = 0; i < model->analog_channels; i++) { | |
206 | if (cg != devc->analog_groups[i]) | |
207 | continue; | |
208 | *data = g_variant_new("(tt)", | |
209 | (*model->vdivs)[state->analog_channels[i].vdiv][0], | |
210 | (*model->vdivs)[state->analog_channels[i].vdiv][1]); | |
211 | ret = SR_OK; | |
212 | break; | |
213 | } | |
214 | ||
215 | } else { | |
216 | ret = SR_ERR_NA; | |
217 | } | |
218 | break; | |
219 | case SR_CONF_TRIGGER_SOURCE: | |
220 | *data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]); | |
221 | ret = SR_OK; | |
222 | break; | |
223 | case SR_CONF_TRIGGER_SLOPE: | |
224 | *data = g_variant_new_string((*model->trigger_slopes)[state->trigger_slope]); | |
225 | ret = SR_OK; | |
226 | break; | |
227 | case SR_CONF_HORIZ_TRIGGERPOS: | |
228 | *data = g_variant_new_double(state->horiz_triggerpos); | |
229 | ret = SR_OK; | |
230 | break; | |
231 | case SR_CONF_COUPLING: | |
232 | if (cg_type == CG_NONE) { | |
233 | return SR_ERR_CHANNEL_GROUP; | |
234 | } else if (cg_type == CG_ANALOG) { | |
235 | for (i = 0; i < model->analog_channels; i++) { | |
236 | if (cg != devc->analog_groups[i]) | |
237 | continue; | |
238 | *data = g_variant_new_string((*model->coupling_options)[state->analog_channels[i].coupling]); | |
239 | ret = SR_OK; | |
240 | break; | |
241 | } | |
242 | ||
243 | } else { | |
244 | ret = SR_ERR_NA; | |
245 | } | |
246 | break; | |
247 | case SR_CONF_SAMPLERATE: | |
248 | *data = g_variant_new_uint64(state->sample_rate); | |
249 | ret = SR_OK; | |
250 | break; | |
251 | default: | |
252 | ret = SR_ERR_NA; | |
253 | } | |
254 | ||
255 | return ret; | |
256 | } | |
257 | ||
258 | static int config_set(uint32_t key, GVariant *data, | |
259 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
260 | { | |
261 | int ret, cg_type, idx; | |
262 | unsigned int i, j; | |
263 | char command[MAX_COMMAND_SIZE], float_str[30]; | |
264 | struct dev_context *devc; | |
265 | const struct scope_config *model; | |
266 | struct scope_state *state; | |
267 | const char *tmp; | |
268 | double tmp_d; | |
269 | gboolean update_sample_rate; | |
270 | ||
271 | if (!sdi) | |
272 | return SR_ERR_ARG; | |
273 | ||
274 | devc = sdi->priv; | |
275 | ||
276 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
277 | return SR_ERR; | |
278 | ||
279 | model = devc->model_config; | |
280 | state = devc->model_state; | |
281 | update_sample_rate = FALSE; | |
282 | ||
283 | ret = SR_ERR_NA; | |
284 | ||
285 | switch (key) { | |
286 | case SR_CONF_LIMIT_FRAMES: | |
287 | devc->frame_limit = g_variant_get_uint64(data); | |
288 | ret = SR_OK; | |
289 | break; | |
290 | case SR_CONF_TRIGGER_SOURCE: | |
291 | tmp = g_variant_get_string(data, NULL); | |
292 | for (i = 0; (*model->trigger_sources)[i]; i++) { | |
293 | if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0) | |
294 | continue; | |
295 | state->trigger_source = i; | |
296 | g_snprintf(command, sizeof(command), | |
297 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SOURCE], | |
298 | (*model->trigger_sources)[i]); | |
299 | ||
300 | ret = sr_scpi_send(sdi->conn, command); | |
301 | break; | |
302 | } | |
303 | break; | |
304 | case SR_CONF_VDIV: | |
305 | if (cg_type == CG_NONE) | |
306 | return SR_ERR_CHANNEL_GROUP; | |
307 | if ((idx = std_u64_tuple_idx(data, *model->vdivs, model->num_vdivs)) < 0) | |
308 | return SR_ERR_ARG; | |
309 | for (j = 1; j <= model->analog_channels; j++) { | |
310 | if (cg != devc->analog_groups[j - 1]) | |
311 | continue; | |
312 | state->analog_channels[j - 1].vdiv = idx; | |
313 | g_ascii_formatd(float_str, sizeof(float_str), "%E", | |
314 | (float) (*model->vdivs)[idx][0] / (*model->vdivs)[idx][1]); | |
315 | g_snprintf(command, sizeof(command), | |
316 | (*model->scpi_dialect)[SCPI_CMD_SET_VERTICAL_DIV], | |
317 | j, float_str); | |
318 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
319 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
320 | return SR_ERR; | |
321 | break; | |
322 | } | |
323 | ret = SR_OK; | |
324 | break; | |
325 | case SR_CONF_TIMEBASE: | |
326 | if ((idx = std_u64_tuple_idx(data, *model->timebases, model->num_timebases)) < 0) | |
327 | return SR_ERR_ARG; | |
328 | state->timebase = idx; | |
329 | g_ascii_formatd(float_str, sizeof(float_str), "%E", | |
330 | (float) (*model->timebases)[idx][0] / (*model->timebases)[idx][1]); | |
331 | g_snprintf(command, sizeof(command), | |
332 | (*model->scpi_dialect)[SCPI_CMD_SET_TIMEBASE], | |
333 | float_str); | |
334 | ret = sr_scpi_send(sdi->conn, command); | |
335 | update_sample_rate = TRUE; | |
336 | break; | |
337 | case SR_CONF_HORIZ_TRIGGERPOS: | |
338 | tmp_d = g_variant_get_double(data); | |
339 | ||
340 | if (tmp_d < 0.0 || tmp_d > 1.0) | |
341 | return SR_ERR; | |
342 | ||
343 | state->horiz_triggerpos = tmp_d; | |
344 | tmp_d = -(tmp_d - 0.5) * | |
345 | ((double) (*model->timebases)[state->timebase][0] / | |
346 | (*model->timebases)[state->timebase][1]) | |
347 | * model->num_xdivs; | |
348 | ||
349 | g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d); | |
350 | g_snprintf(command, sizeof(command), | |
351 | (*model->scpi_dialect)[SCPI_CMD_SET_HORIZ_TRIGGERPOS], | |
352 | float_str); | |
353 | ||
354 | ret = sr_scpi_send(sdi->conn, command); | |
355 | break; | |
356 | case SR_CONF_TRIGGER_SLOPE: | |
357 | tmp = g_variant_get_string(data, NULL); | |
358 | for (i = 0; (*model->trigger_slopes)[i]; i++) { | |
359 | if (g_strcmp0(tmp, (*model->trigger_slopes)[i]) != 0) | |
360 | continue; | |
361 | state->trigger_slope = i; | |
362 | g_snprintf(command, sizeof(command), | |
363 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SLOPE], | |
364 | (*model->trigger_slopes)[i]); | |
365 | ||
366 | ret = sr_scpi_send(sdi->conn, command); | |
367 | break; | |
368 | } | |
369 | break; | |
370 | case SR_CONF_COUPLING: | |
371 | if (cg_type == CG_NONE) | |
372 | return SR_ERR_CHANNEL_GROUP; | |
373 | ||
374 | tmp = g_variant_get_string(data, NULL); | |
375 | ||
376 | for (i = 0; (*model->coupling_options)[i]; i++) { | |
377 | if (strcmp(tmp, (*model->coupling_options)[i]) != 0) | |
378 | continue; | |
379 | for (j = 1; j <= model->analog_channels; j++) { | |
380 | if (cg != devc->analog_groups[j - 1]) | |
381 | continue; | |
382 | state->analog_channels[j-1].coupling = i; | |
383 | ||
384 | g_snprintf(command, sizeof(command), | |
385 | (*model->scpi_dialect)[SCPI_CMD_SET_COUPLING], | |
386 | j, tmp); | |
387 | ||
388 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
389 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
390 | return SR_ERR; | |
391 | break; | |
392 | } | |
393 | ||
394 | ret = SR_OK; | |
395 | break; | |
396 | } | |
397 | break; | |
398 | default: | |
399 | ret = SR_ERR_NA; | |
400 | break; | |
401 | } | |
402 | ||
403 | if (ret == SR_OK) | |
404 | ret = sr_scpi_get_opc(sdi->conn); | |
405 | ||
406 | if (ret == SR_OK && update_sample_rate) | |
407 | ret = hmo_update_sample_rate(sdi); | |
408 | ||
409 | return ret; | |
410 | } | |
411 | ||
412 | static int config_list(uint32_t key, GVariant **data, | |
413 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
414 | { | |
415 | int cg_type = CG_NONE; | |
416 | struct dev_context *devc = NULL; | |
417 | const struct scope_config *model = NULL; | |
418 | ||
419 | if (sdi) { | |
420 | devc = sdi->priv; | |
421 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
422 | return SR_ERR; | |
423 | ||
424 | model = devc->model_config; | |
425 | } | |
426 | ||
427 | switch (key) { | |
428 | case SR_CONF_SCAN_OPTIONS: | |
429 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(scanopts)); | |
430 | break; | |
431 | case SR_CONF_DEVICE_OPTIONS: | |
432 | if (cg_type == CG_NONE) { | |
433 | if (model) | |
434 | *data = std_gvar_array_u32((const uint32_t *)model->devopts, model->num_devopts); | |
435 | else | |
436 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(drvopts)); | |
437 | } else if (cg_type == CG_ANALOG) { | |
438 | *data = std_gvar_array_u32((const uint32_t *)model->devopts_cg_analog, model->num_devopts_cg_analog); | |
439 | } else { | |
440 | *data = std_gvar_array_u32(NULL, 0); | |
441 | } | |
442 | break; | |
443 | case SR_CONF_COUPLING: | |
444 | if (cg_type == CG_NONE) | |
445 | return SR_ERR_CHANNEL_GROUP; | |
446 | *data = g_variant_new_strv(*model->coupling_options, | |
447 | g_strv_length((char **)*model->coupling_options)); | |
448 | break; | |
449 | case SR_CONF_TRIGGER_SOURCE: | |
450 | if (!model) | |
451 | return SR_ERR_ARG; | |
452 | *data = g_variant_new_strv(*model->trigger_sources, | |
453 | g_strv_length((char **)*model->trigger_sources)); | |
454 | break; | |
455 | case SR_CONF_TRIGGER_SLOPE: | |
456 | if (!model) | |
457 | return SR_ERR_ARG; | |
458 | *data = g_variant_new_strv(*model->trigger_slopes, | |
459 | g_strv_length((char **)*model->trigger_slopes)); | |
460 | break; | |
461 | case SR_CONF_TIMEBASE: | |
462 | if (!model) | |
463 | return SR_ERR_ARG; | |
464 | *data = std_gvar_tuple_array(*model->timebases, model->num_timebases); | |
465 | break; | |
466 | case SR_CONF_VDIV: | |
467 | if (cg_type == CG_NONE) | |
468 | return SR_ERR_CHANNEL_GROUP; | |
469 | *data = std_gvar_tuple_array(*model->vdivs, model->num_vdivs); | |
470 | break; | |
471 | default: | |
472 | return SR_ERR_NA; | |
473 | } | |
474 | ||
475 | return SR_OK; | |
476 | } | |
477 | ||
478 | SR_PRIV int hmo_request_data(const struct sr_dev_inst *sdi) | |
479 | { | |
480 | char command[MAX_COMMAND_SIZE]; | |
481 | struct sr_channel *ch; | |
482 | struct dev_context *devc; | |
483 | const struct scope_config *model; | |
484 | ||
485 | devc = sdi->priv; | |
486 | model = devc->model_config; | |
487 | ||
488 | ch = devc->current_channel->data; | |
489 | ||
490 | switch (ch->type) { | |
491 | case SR_CHANNEL_ANALOG: | |
492 | g_snprintf(command, sizeof(command), | |
493 | (*model->scpi_dialect)[SCPI_CMD_GET_ANALOG_DATA], | |
494 | #ifdef WORDS_BIGENDIAN | |
495 | "MSBF", | |
496 | #else | |
497 | "LSBF", | |
498 | #endif | |
499 | ch->index + 1); | |
500 | break; | |
501 | case SR_CHANNEL_LOGIC: | |
502 | g_snprintf(command, sizeof(command), | |
503 | (*model->scpi_dialect)[SCPI_CMD_GET_DIG_DATA], | |
504 | ch->index < 8 ? 1 : 2); | |
505 | break; | |
506 | default: | |
507 | sr_err("Invalid channel type."); | |
508 | break; | |
509 | } | |
510 | ||
511 | return sr_scpi_send(sdi->conn, command); | |
512 | } | |
513 | ||
514 | static int hmo_check_channels(GSList *channels) | |
515 | { | |
516 | GSList *l; | |
517 | struct sr_channel *ch; | |
518 | gboolean enabled_chan[MAX_ANALOG_CHANNEL_COUNT]; | |
519 | gboolean enabled_pod[MAX_DIGITAL_GROUP_COUNT]; | |
520 | size_t idx; | |
521 | ||
522 | /* Preset "not enabled" for all channels / pods. */ | |
523 | for (idx = 0; idx < ARRAY_SIZE(enabled_chan); idx++) | |
524 | enabled_chan[idx] = FALSE; | |
525 | for (idx = 0; idx < ARRAY_SIZE(enabled_pod); idx++) | |
526 | enabled_pod[idx] = FALSE; | |
527 | ||
528 | /* | |
529 | * Determine which channels / pods are required for the caller's | |
530 | * specified configuration. | |
531 | */ | |
532 | for (l = channels; l; l = l->next) { | |
533 | ch = l->data; | |
534 | switch (ch->type) { | |
535 | case SR_CHANNEL_ANALOG: | |
536 | idx = ch->index; | |
537 | if (idx < ARRAY_SIZE(enabled_chan)) | |
538 | enabled_chan[idx] = TRUE; | |
539 | break; | |
540 | case SR_CHANNEL_LOGIC: | |
541 | idx = ch->index / 8; | |
542 | if (idx < ARRAY_SIZE(enabled_pod)) | |
543 | enabled_pod[idx] = TRUE; | |
544 | break; | |
545 | default: | |
546 | return SR_ERR; | |
547 | } | |
548 | } | |
549 | ||
550 | /* | |
551 | * Check for resource conflicts. Some channels can be either | |
552 | * analog or digital, but never both at the same time. | |
553 | * | |
554 | * Note that the constraints might depend on the specific model. | |
555 | * These tests might need some adjustment when support for more | |
556 | * models gets added to the driver. | |
557 | */ | |
558 | if (enabled_pod[0] && enabled_chan[2]) | |
559 | return SR_ERR; | |
560 | if (enabled_pod[1] && enabled_chan[3]) | |
561 | return SR_ERR; | |
562 | return SR_OK; | |
563 | } | |
564 | ||
565 | static int hmo_setup_channels(const struct sr_dev_inst *sdi) | |
566 | { | |
567 | GSList *l; | |
568 | unsigned int i; | |
569 | gboolean *pod_enabled, setup_changed; | |
570 | char command[MAX_COMMAND_SIZE]; | |
571 | struct scope_state *state; | |
572 | const struct scope_config *model; | |
573 | struct sr_channel *ch; | |
574 | struct dev_context *devc; | |
575 | struct sr_scpi_dev_inst *scpi; | |
576 | ||
577 | devc = sdi->priv; | |
578 | scpi = sdi->conn; | |
579 | state = devc->model_state; | |
580 | model = devc->model_config; | |
581 | setup_changed = FALSE; | |
582 | ||
583 | pod_enabled = g_try_malloc0(sizeof(gboolean) * model->digital_pods); | |
584 | ||
585 | for (l = sdi->channels; l; l = l->next) { | |
586 | ch = l->data; | |
587 | switch (ch->type) { | |
588 | case SR_CHANNEL_ANALOG: | |
589 | if (ch->enabled == state->analog_channels[ch->index].state) | |
590 | break; | |
591 | g_snprintf(command, sizeof(command), | |
592 | (*model->scpi_dialect)[SCPI_CMD_SET_ANALOG_CHAN_STATE], | |
593 | ch->index + 1, ch->enabled); | |
594 | ||
595 | if (sr_scpi_send(scpi, command) != SR_OK) | |
596 | return SR_ERR; | |
597 | state->analog_channels[ch->index].state = ch->enabled; | |
598 | setup_changed = TRUE; | |
599 | break; | |
600 | case SR_CHANNEL_LOGIC: | |
601 | /* | |
602 | * A digital POD needs to be enabled for every group of | |
603 | * 8 channels. | |
604 | */ | |
605 | if (ch->enabled) | |
606 | pod_enabled[ch->index < 8 ? 0 : 1] = TRUE; | |
607 | ||
608 | if (ch->enabled == state->digital_channels[ch->index]) | |
609 | break; | |
610 | g_snprintf(command, sizeof(command), | |
611 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_CHAN_STATE], | |
612 | ch->index, ch->enabled); | |
613 | ||
614 | if (sr_scpi_send(scpi, command) != SR_OK) | |
615 | return SR_ERR; | |
616 | ||
617 | state->digital_channels[ch->index] = ch->enabled; | |
618 | setup_changed = TRUE; | |
619 | break; | |
620 | default: | |
621 | return SR_ERR; | |
622 | } | |
623 | } | |
624 | ||
625 | for (i = 1; i <= model->digital_pods; i++) { | |
626 | if (state->digital_pods[i - 1] == pod_enabled[i - 1]) | |
627 | continue; | |
628 | g_snprintf(command, sizeof(command), | |
629 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_STATE], | |
630 | i, pod_enabled[i - 1]); | |
631 | if (sr_scpi_send(scpi, command) != SR_OK) | |
632 | return SR_ERR; | |
633 | state->digital_pods[i - 1] = pod_enabled[i - 1]; | |
634 | setup_changed = TRUE; | |
635 | } | |
636 | ||
637 | g_free(pod_enabled); | |
638 | ||
639 | if (setup_changed && hmo_update_sample_rate(sdi) != SR_OK) | |
640 | return SR_ERR; | |
641 | ||
642 | return SR_OK; | |
643 | } | |
644 | ||
645 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
646 | { | |
647 | GSList *l; | |
648 | gboolean digital_added[MAX_DIGITAL_GROUP_COUNT]; | |
649 | size_t group, pod_count; | |
650 | struct sr_channel *ch; | |
651 | struct dev_context *devc; | |
652 | struct sr_scpi_dev_inst *scpi; | |
653 | int ret; | |
654 | ||
655 | scpi = sdi->conn; | |
656 | devc = sdi->priv; | |
657 | ||
658 | /* Preset empty results. */ | |
659 | for (group = 0; group < ARRAY_SIZE(digital_added); group++) | |
660 | digital_added[group] = FALSE; | |
661 | g_slist_free(devc->enabled_channels); | |
662 | devc->enabled_channels = NULL; | |
663 | ||
664 | /* | |
665 | * Contruct the list of enabled channels. Determine the highest | |
666 | * number of digital pods involved in the acquisition. | |
667 | */ | |
668 | pod_count = 0; | |
669 | for (l = sdi->channels; l; l = l->next) { | |
670 | ch = l->data; | |
671 | if (!ch->enabled) | |
672 | continue; | |
673 | /* Only add a single digital channel per group (pod). */ | |
674 | group = ch->index / 8; | |
675 | if (ch->type != SR_CHANNEL_LOGIC || !digital_added[group]) { | |
676 | devc->enabled_channels = g_slist_append( | |
677 | devc->enabled_channels, ch); | |
678 | if (ch->type == SR_CHANNEL_LOGIC) { | |
679 | digital_added[group] = TRUE; | |
680 | if (pod_count < group + 1) | |
681 | pod_count = group + 1; | |
682 | } | |
683 | } | |
684 | } | |
685 | if (!devc->enabled_channels) | |
686 | return SR_ERR; | |
687 | devc->pod_count = pod_count; | |
688 | devc->logic_data = NULL; | |
689 | ||
690 | /* | |
691 | * Check constraints. Some channels can be either analog or | |
692 | * digital, but not both at the same time. | |
693 | */ | |
694 | if (hmo_check_channels(devc->enabled_channels) != SR_OK) { | |
695 | sr_err("Invalid channel configuration specified!"); | |
696 | ret = SR_ERR_NA; | |
697 | goto free_enabled; | |
698 | } | |
699 | ||
700 | /* | |
701 | * Configure the analog and digital channels and the | |
702 | * corresponding digital pods. | |
703 | */ | |
704 | if (hmo_setup_channels(sdi) != SR_OK) { | |
705 | sr_err("Failed to setup channel configuration!"); | |
706 | ret = SR_ERR; | |
707 | goto free_enabled; | |
708 | } | |
709 | ||
710 | /* | |
711 | * Start acquisition on the first enabled channel. The | |
712 | * receive routine will continue driving the acquisition. | |
713 | */ | |
714 | sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50, | |
715 | hmo_receive_data, (void *)sdi); | |
716 | ||
717 | std_session_send_df_header(sdi); | |
718 | ||
719 | devc->current_channel = devc->enabled_channels; | |
720 | ||
721 | return hmo_request_data(sdi); | |
722 | ||
723 | free_enabled: | |
724 | g_slist_free(devc->enabled_channels); | |
725 | devc->enabled_channels = NULL; | |
726 | return ret; | |
727 | } | |
728 | ||
729 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
730 | { | |
731 | struct dev_context *devc; | |
732 | struct sr_scpi_dev_inst *scpi; | |
733 | ||
734 | std_session_send_df_end(sdi); | |
735 | ||
736 | devc = sdi->priv; | |
737 | ||
738 | devc->num_frames = 0; | |
739 | g_slist_free(devc->enabled_channels); | |
740 | devc->enabled_channels = NULL; | |
741 | scpi = sdi->conn; | |
742 | sr_scpi_source_remove(sdi->session, scpi); | |
743 | ||
744 | return SR_OK; | |
745 | } | |
746 | ||
747 | static struct sr_dev_driver hameg_hmo_driver_info = { | |
748 | .name = "hameg-hmo", | |
749 | .longname = "Hameg HMO", | |
750 | .api_version = 1, | |
751 | .init = std_init, | |
752 | .cleanup = std_cleanup, | |
753 | .scan = scan, | |
754 | .dev_list = std_dev_list, | |
755 | .dev_clear = dev_clear, | |
756 | .config_get = config_get, | |
757 | .config_set = config_set, | |
758 | .config_list = config_list, | |
759 | .dev_open = dev_open, | |
760 | .dev_close = dev_close, | |
761 | .dev_acquisition_start = dev_acquisition_start, | |
762 | .dev_acquisition_stop = dev_acquisition_stop, | |
763 | .context = NULL, | |
764 | }; | |
765 | SR_REGISTER_DEV_DRIVER(hameg_hmo_driver_info); |