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