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serial-dmm: Implemented support for Voltcraft M-3650CR (driver voltcraft-m3650cr).
[libsigrok.git] / hardware / hameg-hmo / api.c
CommitLineData
06a3e78a
DJ		 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
13f2b9d7 20#include <stdlib.h>
06a3e78a
DJ		 21#include "protocol.h"
22
13f2b9d7
DJ		 23#define SERIALCOMM "115200/8n1/flow=1"
24
e9a62139
DJ		 25SR_PRIV struct sr_dev_driver hameg_hmo_driver_info;
26static struct sr_dev_driver *di = &hameg_hmo_driver_info;
27
28static const char *manufacturers[] = {
29 "HAMEG",
30};
31
13f2b9d7
DJ		 32static const int32_t hwopts[] = {
33 SR_CONF_CONN,
34 SR_CONF_SERIALCOMM,
35};
36
719eff68
UH		 37enum {
38 PG_INVALID = -1,
39 PG_NONE,
40 PG_ANALOG,
41 PG_DIGITAL,
42};
43
06a3e78a
DJ		 44static int init(struct sr_context *sr_ctx)
45{
46 return std_init(sr_ctx, di, LOG_PREFIX);
47}
48
e9a62139
DJ		 49static int check_manufacturer(const char *manufacturer)
50{
51 unsigned int i;
52
53 for (i = 0; i < ARRAY_SIZE(manufacturers); ++i)
54 if (!strcmp(manufacturer, manufacturers[i]))
55 return SR_OK;
56
57 return SR_ERR;
58}
59
ca28abd6 60static struct sr_dev_inst *hmo_probe_serial_device(struct sr_scpi_dev_inst *scpi)
e9a62139
DJ		 61{
62 struct sr_dev_inst *sdi;
63 struct dev_context *devc;
64 struct sr_scpi_hw_info *hw_info;
e9a62139
DJ		 65
66 sdi = NULL;
67 devc = NULL;
e9a62139
DJ		 68 hw_info = NULL;
69
e9a62139
DJ		 70 if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
71 sr_info("Couldn't get IDN response.");
72 goto fail;
73 }
74
75 if (check_manufacturer(hw_info->manufacturer) != SR_OK)
76 goto fail;
77
78 if (!(sdi = sr_dev_inst_new(0, SR_ST_ACTIVE,
79 hw_info->manufacturer, hw_info->model,
80 hw_info->firmware_version))) {
81 goto fail;
82 }
83 sr_scpi_hw_info_free(hw_info);
84 hw_info = NULL;
85
86 if (!(devc = g_try_malloc0(sizeof(struct dev_context))))
87 goto fail;
88
89 sdi->driver = di;
90 sdi->priv = devc;
91 sdi->inst_type = SR_INST_SCPI;
92 sdi->conn = scpi;
93
94 if (hmo_init_device(sdi) != SR_OK)
95 goto fail;
96
68e3d070
DJ		 97 sr_scpi_close(sdi->conn);
98
99 sdi->status = SR_ST_INACTIVE;
100
e9a62139
DJ		 101 return sdi;
102
103fail:
104 if (hw_info)
105 sr_scpi_hw_info_free(hw_info);
e9a62139
DJ		 106 if (sdi)
107 sr_dev_inst_free(sdi);
108 if (devc)
109 g_free(devc);
110
111 return NULL;
112}
113
06a3e78a
DJ		 114static GSList *scan(GSList *options)
115{
ca28abd6 116 return sr_scpi_scan(di->priv, options, hmo_probe_serial_device);
06a3e78a
DJ		 117}
118
119static GSList *dev_list(void)
120{
121 return ((struct drv_context *)(di->priv))->instances;
122}
123
13f2b9d7
DJ		 124static void clear_helper(void *priv)
125{
126 unsigned int i;
13f2b9d7
DJ		 127 struct dev_context *devc;
128 struct scope_config *model;
129
130 devc = priv;
131 model = devc->model_config;
132
719eff68 133 hmo_scope_state_free(devc->model_state);
13f2b9d7 134
89280b1a 135 for (i = 0; i < model->analog_channels; ++i)
13f2b9d7 136 g_slist_free(devc->analog_groups[i].probes);
13f2b9d7
DJ		 137
138 for (i = 0; i < model->digital_pods; ++i) {
139 g_slist_free(devc->digital_groups[i].probes);
140 g_free(devc->digital_groups[i].name);
141 }
142
143 g_free(devc->analog_groups);
144 g_free(devc->digital_groups);
145
146 g_free(devc);
147}
148
06a3e78a
DJ		 149static int dev_clear(void)
150{
13f2b9d7 151 return std_dev_clear(di, clear_helper);
06a3e78a
DJ		 152}
153
154static int dev_open(struct sr_dev_inst *sdi)
155{
23f43dff 156 if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
13f2b9d7 157 return SR_ERR;
06a3e78a 158
719eff68 159 if (hmo_scope_state_get(sdi) != SR_OK)
13f2b9d7 160 return SR_ERR;
06a3e78a
DJ		 161
162 sdi->status = SR_ST_ACTIVE;
163
164 return SR_OK;
165}
166
167static int dev_close(struct sr_dev_inst *sdi)
168{
13f2b9d7
DJ		 169 if (sdi->status == SR_ST_INACTIVE)
170 return SR_OK;
06a3e78a 171
23f43dff 172 sr_scpi_close(sdi->conn);
06a3e78a
DJ		 173
174 sdi->status = SR_ST_INACTIVE;
175
176 return SR_OK;
177}
178
179static int cleanup(void)
180{
181 dev_clear();
182
06a3e78a
DJ		 183 return SR_OK;
184}
185
13f2b9d7
DJ		 186static int check_probe_group(struct dev_context *devc,
187 const struct sr_probe_group *probe_group)
188{
189 unsigned int i;
190 struct scope_config *model;
191
192 model = devc->model_config;
193
194 if (!probe_group)
195 return PG_NONE;
196
197 for (i = 0; i < model->analog_channels; ++i)
198 if (probe_group == &devc->analog_groups[i])
199 return PG_ANALOG;
200
201 for (i = 0; i < model->digital_pods; ++i)
202 if (probe_group == &devc->digital_groups[i])
203 return PG_DIGITAL;
204
205 sr_err("Invalid probe group specified.");
89280b1a 206
13f2b9d7
DJ		 207 return PG_INVALID;
208}
209
210static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
211 const struct sr_probe_group *probe_group)
06a3e78a 212{
89280b1a 213 int ret, pg_type;
13f2b9d7 214 unsigned int i;
13f2b9d7
DJ		 215 struct dev_context *devc;
216 struct scope_config *model;
14a2f74d 217 struct scope_state *state;
13f2b9d7
DJ		 218
219 if (!sdi || !(devc = sdi->priv))
220 return SR_ERR_ARG;
221
222 if ((pg_type = check_probe_group(devc, probe_group)) == PG_INVALID)
223 return SR_ERR;
06a3e78a 224
13f2b9d7
DJ		 225 ret = SR_ERR_NA;
226 model = devc->model_config;
14a2f74d 227 state = devc->model_state;
06a3e78a 228
06a3e78a 229 switch (key) {
13f2b9d7
DJ		 230 case SR_CONF_NUM_TIMEBASE:
231 *data = g_variant_new_int32(model->num_xdivs);
232 ret = SR_OK;
233 break;
13f2b9d7
DJ		 234 case SR_CONF_NUM_VDIV:
235 if (pg_type == PG_NONE) {
236 sr_err("No probe group specified.");
237 return SR_ERR_PROBE_GROUP;
13f2b9d7
DJ		 238 } else if (pg_type == PG_ANALOG) {
239 for (i = 0; i < model->analog_channels; ++i) {
082972e8
UH		 240 if (probe_group != &devc->analog_groups[i])
241 continue;
242 *data = g_variant_new_int32(model->num_ydivs);
243 ret = SR_OK;
244 break;
13f2b9d7
DJ		 245 }
246
ccf14618
DJ		 247 } else {
248 ret = SR_ERR_NA;
249 }
250 break;
251 case SR_CONF_TRIGGER_SOURCE:
252 *data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]);
253 ret = SR_OK;
254 break;
255 case SR_CONF_COUPLING:
256 if (pg_type == PG_NONE) {
257 sr_err("No probe group specified.");
258 return SR_ERR_PROBE_GROUP;
259 } else if (pg_type == PG_ANALOG) {
260 for (i = 0; i < model->analog_channels; ++i) {
261 if (probe_group != &devc->analog_groups[i])
262 continue;
263 *data = g_variant_new_string((*model->coupling_options)[state->analog_channels[i].coupling]);
264 ret = SR_OK;
265 break;
266 }
267
13f2b9d7
DJ		 268 } else {
269 ret = SR_ERR_NA;
270 }
271 break;
14a2f74d
DJ		 272 case SR_CONF_SAMPLERATE:
273 *data = g_variant_new_uint64(state->sample_rate);
274 ret = SR_OK;
275 break;
06a3e78a 276 default:
13f2b9d7 277 ret = SR_ERR_NA;
06a3e78a
DJ		 278 }
279
280 return ret;
281}
282
13f2b9d7
DJ		 283static GVariant *build_tuples(const uint64_t (*array)[][2], unsigned int n)
284{
285 unsigned int i;
13f2b9d7
DJ		 286 GVariant *rational[2];
287 GVariantBuilder gvb;
288
289 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
290
291 for (i = 0; i < n; i++) {
292 rational[0] = g_variant_new_uint64((*array)[i][0]);
293 rational[1] = g_variant_new_uint64((*array)[i][1]);
294
89280b1a 295 /* FIXME: Valgrind reports a memory leak here. */
13f2b9d7
DJ		 296 g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
297 }
298
299 return g_variant_builder_end(&gvb);
300}
301
302static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
303 const struct sr_probe_group *probe_group)
06a3e78a 304{
89280b1a
UH		 305 int ret, pg_type;
306 unsigned int i, j;
965b463d 307 char command[MAX_COMMAND_SIZE], float_str[30];
13f2b9d7
DJ		 308 struct dev_context *devc;
309 struct scope_config *model;
310 struct scope_state *state;
89280b1a 311 const char *tmp;
ca9b9f48 312 uint64_t p, q;
89280b1a 313 double tmp_d;
23e1ea7a 314 gboolean update_sample_rate;
06a3e78a 315
13f2b9d7
DJ		 316 if (!sdi || !(devc = sdi->priv))
317 return SR_ERR_ARG;
318
319 if ((pg_type = check_probe_group(devc, probe_group)) == PG_INVALID)
320 return SR_ERR;
321
322 model = devc->model_config;
323 state = devc->model_state;
23e1ea7a 324 update_sample_rate = FALSE;
13f2b9d7
DJ		 325
326 ret = SR_ERR_NA;
06a3e78a 327
06a3e78a 328 switch (key) {
13f2b9d7
DJ		 329 case SR_CONF_LIMIT_FRAMES:
330 devc->frame_limit = g_variant_get_uint64(data);
331 ret = SR_OK;
332 break;
13f2b9d7 333 case SR_CONF_TRIGGER_SOURCE:
13f2b9d7 334 tmp = g_variant_get_string(data, NULL);
13f2b9d7 335 for (i = 0; (*model->trigger_sources)[i]; i++) {
082972e8
UH		 336 if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
337 continue;
338 state->trigger_source = i;
339 g_snprintf(command, sizeof(command),
340 (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SOURCE],
341 (*model->trigger_sources)[i]);
13f2b9d7 342
082972e8
UH		 343 ret = sr_scpi_send(sdi->conn, command);
344 break;
13f2b9d7 345 }
89280b1a 346 break;
13f2b9d7 347 case SR_CONF_VDIV:
13f2b9d7
DJ		 348 if (pg_type == PG_NONE) {
349 sr_err("No probe group specified.");
350 return SR_ERR_PROBE_GROUP;
351 }
352
353 g_variant_get(data, "(tt)", &p, &q);
354
355 for (i = 0; i < model->num_vdivs; i++) {
082972e8
UH		 356 if (p != (*model->vdivs)[i][0] ||
357 q != (*model->vdivs)[i][1])
358 continue;
359 for (j = 1; j <= model->analog_channels; ++j) {
360 if (probe_group != &devc->analog_groups[j - 1])
361 continue;
8de2dc3b 362 state->analog_channels[j - 1].vdiv = i;
965b463d 363 g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q);
082972e8
UH		 364 g_snprintf(command, sizeof(command),
365 (*model->scpi_dialect)[SCPI_CMD_SET_VERTICAL_DIV],
965b463d 366 j, float_str);
082972e8
UH		 367
368 if (sr_scpi_send(sdi->conn, command) != SR_OK ||
369 sr_scpi_get_opc(sdi->conn) != SR_OK)
370 return SR_ERR;
13f2b9d7 371
13f2b9d7
DJ		 372 break;
373 }
082972e8
UH		 374
375 ret = SR_OK;
376 break;
13f2b9d7 377 }
89280b1a 378 break;
13f2b9d7 379 case SR_CONF_TIMEBASE:
13f2b9d7
DJ		 380 g_variant_get(data, "(tt)", &p, &q);
381
382 for (i = 0; i < model->num_timebases; i++) {
082972e8
UH		 383 if (p != (*model->timebases)[i][0] ||
384 q != (*model->timebases)[i][1])
385 continue;
8de2dc3b 386 state->timebase = i;
965b463d 387 g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q);
082972e8
UH		 388 g_snprintf(command, sizeof(command),
389 (*model->scpi_dialect)[SCPI_CMD_SET_TIMEBASE],
965b463d 390 float_str);
13f2b9d7 391
082972e8 392 ret = sr_scpi_send(sdi->conn, command);
23e1ea7a 393 update_sample_rate = TRUE;
082972e8 394 break;
13f2b9d7 395 }
89280b1a 396 break;
13f2b9d7 397 case SR_CONF_HORIZ_TRIGGERPOS:
89280b1a 398 tmp_d = g_variant_get_double(data);
13f2b9d7 399
89280b1a 400 if (tmp_d < 0.0 || tmp_d > 1.0)
13f2b9d7
DJ		 401 return SR_ERR;
402
89280b1a 403 state->horiz_triggerpos = -(tmp_d - 0.5) * state->timebase * model->num_xdivs;
13f2b9d7
DJ		 404 g_snprintf(command, sizeof(command),
405 (*model->scpi_dialect)[SCPI_CMD_SET_HORIZ_TRIGGERPOS],
406 state->horiz_triggerpos);
407
408 ret = sr_scpi_send(sdi->conn, command);
89280b1a 409 break;
13f2b9d7 410 case SR_CONF_TRIGGER_SLOPE:
ca9b9f48 411 tmp = g_variant_get_string(data, NULL);
13f2b9d7 412
ca9b9f48
DE		 413 if (!tmp || !(tmp[0] == 'f' || tmp[0] == 'r'))
414 return SR_ERR_ARG;
13f2b9d7 415
ca9b9f48 416 state->trigger_slope = (tmp[0] == 'r') ? 0 : 1;
13f2b9d7
DJ		 417
418 g_snprintf(command, sizeof(command),
419 (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SLOPE],
ca9b9f48 420 (state->trigger_slope == 0) ? "POS" : "NEG");
13f2b9d7
DJ		 421
422 ret = sr_scpi_send(sdi->conn, command);
89280b1a 423 break;
13f2b9d7 424 case SR_CONF_COUPLING:
13f2b9d7
DJ		 425 if (pg_type == PG_NONE) {
426 sr_err("No probe group specified.");
427 return SR_ERR_PROBE_GROUP;
428 }
429
430 tmp = g_variant_get_string(data, NULL);
431
432 for (i = 0; (*model->coupling_options)[i]; i++) {
082972e8
UH		 433 if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
434 continue;
435 for (j = 1; j <= model->analog_channels; ++j) {
436 if (probe_group != &devc->analog_groups[j - 1])
437 continue;
438 state->analog_channels[j-1].coupling = i;
13f2b9d7 439
082972e8
UH		 440 g_snprintf(command, sizeof(command),
441 (*model->scpi_dialect)[SCPI_CMD_SET_COUPLING],
442 j, tmp);
443
444 if (sr_scpi_send(sdi->conn, command) != SR_OK ||
445 sr_scpi_get_opc(sdi->conn) != SR_OK)
446 return SR_ERR;
13f2b9d7
DJ		 447 break;
448 }
082972e8
UH		 449
450 ret = SR_OK;
451 break;
13f2b9d7 452 }
89280b1a 453 break;
06a3e78a
DJ		 454 default:
455 ret = SR_ERR_NA;
13f2b9d7 456 break;
06a3e78a
DJ		 457 }
458
13f2b9d7
DJ		 459 if (ret == SR_OK)
460 ret = sr_scpi_get_opc(sdi->conn);
461
23e1ea7a
DJ		 462 if (ret == SR_OK && update_sample_rate)
463 ret = hmo_update_sample_rate(sdi);
464
06a3e78a
DJ		 465 return ret;
466}
467
13f2b9d7 468static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
89280b1a 469 const struct sr_probe_group *probe_group)
06a3e78a 470{
13f2b9d7 471 int pg_type;
13f2b9d7
DJ		 472 struct dev_context *devc;
473 struct scope_config *model;
474
475 if (!sdi || !(devc = sdi->priv))
476 return SR_ERR_ARG;
06a3e78a 477
13f2b9d7
DJ		 478 if ((pg_type = check_probe_group(devc, probe_group)) == PG_INVALID)
479 return SR_ERR;
480
481 model = devc->model_config;
06a3e78a 482
06a3e78a 483 switch (key) {
13f2b9d7
DJ		 484 case SR_CONF_DEVICE_OPTIONS:
485 if (pg_type == PG_NONE) {
486 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
89280b1a
UH		 487 model->hw_caps, model->num_hwcaps,
488 sizeof(int32_t));
13f2b9d7
DJ		 489 } else if (pg_type == PG_ANALOG) {
490 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
89280b1a
UH		 491 model->analog_hwcaps, model->num_analog_hwcaps,
492 sizeof(int32_t));
13f2b9d7
DJ		 493 } else {
494 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
89280b1a 495 NULL, 0, sizeof(int32_t));
13f2b9d7
DJ		 496 }
497 break;
13f2b9d7
DJ		 498 case SR_CONF_COUPLING:
499 if (pg_type == PG_NONE)
500 return SR_ERR_PROBE_GROUP;
13f2b9d7 501 *data = g_variant_new_strv(*model->coupling_options,
89280b1a 502 g_strv_length((char **)*model->coupling_options));
13f2b9d7 503 break;
13f2b9d7
DJ		 504 case SR_CONF_TRIGGER_SOURCE:
505 *data = g_variant_new_strv(*model->trigger_sources,
89280b1a 506 g_strv_length((char **)*model->trigger_sources));
13f2b9d7 507 break;
13f2b9d7
DJ		 508 case SR_CONF_TIMEBASE:
509 *data = build_tuples(model->timebases, model->num_timebases);
510 break;
13f2b9d7
DJ		 511 case SR_CONF_VDIV:
512 if (pg_type == PG_NONE)
513 return SR_ERR_PROBE_GROUP;
13f2b9d7
DJ		 514 *data = build_tuples(model->vdivs, model->num_vdivs);
515 break;
06a3e78a
DJ		 516 default:
517 return SR_ERR_NA;
518 }
519
13f2b9d7 520 return SR_OK;
06a3e78a
DJ		 521}
522
13f2b9d7 523SR_PRIV int hmo_request_data(const struct sr_dev_inst *sdi)
06a3e78a 524{
13f2b9d7 525 char command[MAX_COMMAND_SIZE];
13f2b9d7
DJ		 526 struct sr_probe *probe;
527 struct dev_context *devc;
528 struct scope_config *model;
529
530 devc = sdi->priv;
531 model = devc->model_config;
532
533 probe = devc->current_probe->data;
534
535 switch (probe->type) {
536 case SR_PROBE_ANALOG:
537 g_snprintf(command, sizeof(command),
538 (*model->scpi_dialect)[SCPI_CMD_GET_ANALOG_DATA],
539 probe->index + 1);
540 break;
541 case SR_PROBE_LOGIC:
542 g_snprintf(command, sizeof(command),
543 (*model->scpi_dialect)[SCPI_CMD_GET_DIG_DATA],
544 probe->index < 8 ? 1 : 2);
545 break;
546 default:
89280b1a 547 sr_err("Invalid probe type.");
13f2b9d7
DJ		 548 break;
549 }
550
551 return sr_scpi_send(sdi->conn, command);
552}
553
554static int hmo_check_probes(GSList *probes)
555{
556 GSList *l;
13f2b9d7 557 struct sr_probe *probe;
89280b1a 558 gboolean enabled_pod1, enabled_pod2, enabled_chan3, enabled_chan4;
13f2b9d7 559
89280b1a 560 enabled_pod1 = enabled_pod2 = enabled_chan3 = enabled_chan4 = FALSE;
13f2b9d7
DJ		 561
562 for (l = probes; l; l = l->next) {
563 probe = l->data;
13f2b9d7
DJ		 564 switch (probe->type) {
565 case SR_PROBE_ANALOG:
566 if (probe->index == 2)
567 enabled_chan3 = TRUE;
568 else if (probe->index == 3)
569 enabled_chan4 = TRUE;
570 break;
13f2b9d7
DJ		 571 case SR_PROBE_LOGIC:
572 if (probe->index < 8)
573 enabled_pod1 = TRUE;
574 else
575 enabled_pod2 = TRUE;
576 break;
13f2b9d7
DJ		 577 default:
578 return SR_ERR;
579 }
580 }
581
582 if ((enabled_pod1 && enabled_chan3) ||
583 (enabled_pod2 && enabled_chan4))
584 return SR_ERR;
585
586 return SR_OK;
587}
588
589static int hmo_setup_probes(const struct sr_dev_inst *sdi)
590{
591 GSList *l;
592 unsigned int i;
23e1ea7a 593 gboolean *pod_enabled, setup_changed;
13f2b9d7 594 char command[MAX_COMMAND_SIZE];
13f2b9d7
DJ		 595 struct scope_state *state;
596 struct scope_config *model;
13f2b9d7
DJ		 597 struct sr_probe *probe;
598 struct dev_context *devc;
23f43dff 599 struct sr_scpi_dev_inst *scpi;
13f2b9d7
DJ		 600
601 devc = sdi->priv;
23f43dff 602 scpi = sdi->conn;
13f2b9d7
DJ		 603 state = devc->model_state;
604 model = devc->model_config;
23e1ea7a 605 setup_changed = FALSE;
13f2b9d7
DJ		 606
607 pod_enabled = g_try_malloc0(sizeof(gboolean) * model->digital_pods);
608
609 for (l = sdi->probes; l; l = l->next) {
610 probe = l->data;
13f2b9d7
DJ		 611 switch (probe->type) {
612 case SR_PROBE_ANALOG:
082972e8
UH		 613 if (probe->enabled == state->analog_channels[probe->index].state)
614 break;
615 g_snprintf(command, sizeof(command),
616 (*model->scpi_dialect)[SCPI_CMD_SET_ANALOG_CHAN_STATE],
617 probe->index + 1, probe->enabled);
13f2b9d7 618
23f43dff 619 if (sr_scpi_send(scpi, command) != SR_OK)
082972e8
UH		 620 return SR_ERR;
621 state->analog_channels[probe->index].state = probe->enabled;
23e1ea7a 622 setup_changed = TRUE;
89280b1a 623 break;
13f2b9d7 624 case SR_PROBE_LOGIC:
13f2b9d7
DJ		 625 /*
626 * A digital POD needs to be enabled for every group of
627 * 8 probes.
628 */
629 if (probe->enabled)
630 pod_enabled[probe->index < 8 ? 0 : 1] = TRUE;
631
082972e8
UH		 632 if (probe->enabled == state->digital_channels[probe->index])
633 break;
634 g_snprintf(command, sizeof(command),
635 (*model->scpi_dialect)[SCPI_CMD_SET_DIG_CHAN_STATE],
636 probe->index, probe->enabled);
13f2b9d7 637
23f43dff 638 if (sr_scpi_send(scpi, command) != SR_OK)
082972e8 639 return SR_ERR;
13f2b9d7 640
082972e8 641 state->digital_channels[probe->index] = probe->enabled;
23e1ea7a 642 setup_changed = TRUE;
89280b1a 643 break;
13f2b9d7
DJ		 644 default:
645 return SR_ERR;
646 }
647 }
648
649 for (i = 1; i <= model->digital_pods; ++i) {
082972e8
UH		 650 if (state->digital_pods[i - 1] == pod_enabled[i - 1])
651 continue;
652 g_snprintf(command, sizeof(command),
653 (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_STATE],
654 i, pod_enabled[i - 1]);
23f43dff 655 if (sr_scpi_send(scpi, command) != SR_OK)
082972e8
UH		 656 return SR_ERR;
657 state->digital_pods[i - 1] = pod_enabled[i - 1];
23e1ea7a 658 setup_changed = TRUE;
13f2b9d7
DJ		 659 }
660
661 g_free(pod_enabled);
662
23e1ea7a
DJ		 663 if (setup_changed && hmo_update_sample_rate(sdi) != SR_OK)
664 return SR_ERR;
665
13f2b9d7
DJ		 666 return SR_OK;
667}
668
669static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
670{
671 GSList *l;
672 gboolean digital_added;
13f2b9d7
DJ		 673 struct sr_probe *probe;
674 struct dev_context *devc;
23f43dff 675 struct sr_scpi_dev_inst *scpi;
06a3e78a
DJ		 676
677 if (sdi->status != SR_ST_ACTIVE)
678 return SR_ERR_DEV_CLOSED;
679
23f43dff 680 scpi = sdi->conn;
13f2b9d7
DJ		 681 devc = sdi->priv;
682 digital_added = FALSE;
683
684 for (l = sdi->probes; l; l = l->next) {
685 probe = l->data;
082972e8
UH		 686 if (!probe->enabled)
687 continue;
688 /* Only add a single digital probe. */
689 if (probe->type != SR_PROBE_LOGIC || !digital_added) {
690 devc->enabled_probes = g_slist_append(
691 devc->enabled_probes, probe);
692 if (probe->type == SR_PROBE_LOGIC)
693 digital_added = TRUE;
13f2b9d7
DJ		 694 }
695 }
06a3e78a 696
13f2b9d7
DJ		 697 if (!devc->enabled_probes)
698 return SR_ERR;
699
700 if (hmo_check_probes(devc->enabled_probes) != SR_OK) {
701 sr_err("Invalid probe configuration specified!");
702 return SR_ERR_NA;
703 }
704
705 if (hmo_setup_probes(sdi) != SR_OK) {
706 sr_err("Failed to setup probe configuration!");
707 return SR_ERR;
708 }
709
23f43dff 710 sr_scpi_source_add(scpi, G_IO_IN, 50, hmo_receive_data, (void *)sdi);
13f2b9d7
DJ		 711
712 /* Send header packet to the session bus. */
713 std_session_send_df_header(cb_data, LOG_PREFIX);
714
715 devc->current_probe = devc->enabled_probes;
716
717 return hmo_request_data(sdi);
06a3e78a
DJ		 718}
719
720static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
721{
13f2b9d7 722 struct dev_context *devc;
23f43dff 723 struct sr_scpi_dev_inst *scpi;
66e3219d 724 struct sr_datafeed_packet packet;
13f2b9d7 725
06a3e78a
DJ		 726 (void)cb_data;
727
66e3219d
DJ		 728 packet.type = SR_DF_END;
729 packet.payload = NULL;
730 sr_session_send(sdi, &packet);
731
06a3e78a
DJ		 732 if (sdi->status != SR_ST_ACTIVE)
733 return SR_ERR_DEV_CLOSED;
734
13f2b9d7
DJ		 735 devc = sdi->priv;
736
ef1a346b 737 devc->num_frames = 0;
13f2b9d7
DJ		 738 g_slist_free(devc->enabled_probes);
739 devc->enabled_probes = NULL;
23f43dff
ML		 740 scpi = sdi->conn;
741 sr_scpi_source_remove(scpi);
06a3e78a
DJ		 742
743 return SR_OK;
744}
745
746SR_PRIV struct sr_dev_driver hameg_hmo_driver_info = {
747 .name = "hameg-hmo",
89280b1a 748 .longname = "Hameg HMO",
06a3e78a
DJ		 749 .api_version = 1,
750 .init = init,
751 .cleanup = cleanup,
752 .scan = scan,
753 .dev_list = dev_list,
754 .dev_clear = dev_clear,
755 .config_get = config_get,
756 .config_set = config_set,
757 .config_list = config_list,
758 .dev_open = dev_open,
759 .dev_close = dev_close,
760 .dev_acquisition_start = dev_acquisition_start,
761 .dev_acquisition_stop = dev_acquisition_stop,
762 .priv = NULL,
763};
Hardware access and backend lib