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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 | * Copyright (C) 2018 Guido Trentalancia <guido@trentalancia.com> | |
6 | * | |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 3 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #include <config.h> | |
22 | #include <stdlib.h> | |
23 | #include "scpi.h" | |
24 | #include "protocol.h" | |
25 | ||
26 | static struct sr_dev_driver hameg_hmo_driver_info; | |
27 | ||
28 | static const char *manufacturers[] = { | |
29 | "HAMEG", | |
30 | "Rohde&Schwarz", | |
31 | }; | |
32 | ||
33 | static const uint32_t scanopts[] = { | |
34 | SR_CONF_CONN, | |
35 | SR_CONF_SERIALCOMM, | |
36 | }; | |
37 | ||
38 | static const uint32_t drvopts[] = { | |
39 | SR_CONF_OSCILLOSCOPE, | |
40 | }; | |
41 | ||
42 | enum { | |
43 | CG_INVALID = -1, | |
44 | CG_NONE, | |
45 | CG_ANALOG, | |
46 | CG_DIGITAL, | |
47 | }; | |
48 | ||
49 | static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi) | |
50 | { | |
51 | struct sr_dev_inst *sdi; | |
52 | struct dev_context *devc; | |
53 | struct sr_scpi_hw_info *hw_info; | |
54 | ||
55 | sdi = NULL; | |
56 | devc = NULL; | |
57 | hw_info = NULL; | |
58 | ||
59 | if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) { | |
60 | sr_info("Couldn't get IDN response."); | |
61 | goto fail; | |
62 | } | |
63 | ||
64 | if (std_str_idx_s(hw_info->manufacturer, ARRAY_AND_SIZE(manufacturers)) < 0) | |
65 | goto fail; | |
66 | ||
67 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
68 | sdi->vendor = g_strdup(hw_info->manufacturer); | |
69 | sdi->model = g_strdup(hw_info->model); | |
70 | sdi->version = g_strdup(hw_info->firmware_version); | |
71 | sdi->serial_num = g_strdup(hw_info->serial_number); | |
72 | sdi->driver = &hameg_hmo_driver_info; | |
73 | sdi->inst_type = SR_INST_SCPI; | |
74 | sdi->conn = scpi; | |
75 | ||
76 | sr_scpi_hw_info_free(hw_info); | |
77 | hw_info = NULL; | |
78 | ||
79 | devc = g_malloc0(sizeof(struct dev_context)); | |
80 | ||
81 | sdi->priv = devc; | |
82 | ||
83 | if (hmo_init_device(sdi) != SR_OK) | |
84 | goto fail; | |
85 | ||
86 | return sdi; | |
87 | ||
88 | fail: | |
89 | sr_scpi_hw_info_free(hw_info); | |
90 | sr_dev_inst_free(sdi); | |
91 | g_free(devc); | |
92 | ||
93 | return NULL; | |
94 | } | |
95 | ||
96 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
97 | { | |
98 | return sr_scpi_scan(di->context, options, probe_device); | |
99 | } | |
100 | ||
101 | static void clear_helper(struct dev_context *devc) | |
102 | { | |
103 | hmo_scope_state_free(devc->model_state); | |
104 | g_free(devc->analog_groups); | |
105 | g_free(devc->digital_groups); | |
106 | } | |
107 | ||
108 | static int dev_clear(const struct sr_dev_driver *di) | |
109 | { | |
110 | return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); | |
111 | } | |
112 | ||
113 | static int dev_open(struct sr_dev_inst *sdi) | |
114 | { | |
115 | if (sr_scpi_open(sdi->conn) != SR_OK) | |
116 | return SR_ERR; | |
117 | ||
118 | if (hmo_scope_state_get(sdi) != SR_OK) | |
119 | return SR_ERR; | |
120 | ||
121 | return SR_OK; | |
122 | } | |
123 | ||
124 | static int dev_close(struct sr_dev_inst *sdi) | |
125 | { | |
126 | return sr_scpi_close(sdi->conn); | |
127 | } | |
128 | ||
129 | static int check_channel_group(struct dev_context *devc, | |
130 | const struct sr_channel_group *cg) | |
131 | { | |
132 | const struct scope_config *model; | |
133 | ||
134 | model = devc->model_config; | |
135 | ||
136 | if (!cg) | |
137 | return CG_NONE; | |
138 | ||
139 | if (std_cg_idx(cg, devc->analog_groups, model->analog_channels) >= 0) | |
140 | return CG_ANALOG; | |
141 | ||
142 | if (std_cg_idx(cg, devc->digital_groups, model->digital_pods) >= 0) | |
143 | return CG_DIGITAL; | |
144 | ||
145 | sr_err("Invalid channel group specified."); | |
146 | ||
147 | return CG_INVALID; | |
148 | } | |
149 | ||
150 | static int config_get(uint32_t key, GVariant **data, | |
151 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
152 | { | |
153 | int cg_type, idx; | |
154 | struct dev_context *devc; | |
155 | const struct scope_config *model; | |
156 | struct scope_state *state; | |
157 | ||
158 | if (!sdi) | |
159 | return SR_ERR_ARG; | |
160 | ||
161 | devc = sdi->priv; | |
162 | ||
163 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
164 | return SR_ERR; | |
165 | ||
166 | model = devc->model_config; | |
167 | state = devc->model_state; | |
168 | ||
169 | switch (key) { | |
170 | case SR_CONF_NUM_HDIV: | |
171 | *data = g_variant_new_int32(model->num_xdivs); | |
172 | break; | |
173 | case SR_CONF_TIMEBASE: | |
174 | *data = g_variant_new("(tt)", (*model->timebases)[state->timebase][0], | |
175 | (*model->timebases)[state->timebase][1]); | |
176 | break; | |
177 | case SR_CONF_NUM_VDIV: | |
178 | if (!cg) | |
179 | return SR_ERR_CHANNEL_GROUP; | |
180 | if (cg_type != CG_ANALOG) | |
181 | return SR_ERR_NA; | |
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 | break; | |
186 | case SR_CONF_VDIV: | |
187 | if (!cg) | |
188 | return SR_ERR_CHANNEL_GROUP; | |
189 | if (cg_type != CG_ANALOG) | |
190 | return SR_ERR_NA; | |
191 | if ((idx = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0) | |
192 | return SR_ERR_ARG; | |
193 | *data = g_variant_new("(tt)", | |
194 | (*model->vdivs)[state->analog_channels[idx].vdiv][0], | |
195 | (*model->vdivs)[state->analog_channels[idx].vdiv][1]); | |
196 | break; | |
197 | case SR_CONF_TRIGGER_SOURCE: | |
198 | *data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]); | |
199 | break; | |
200 | case SR_CONF_TRIGGER_SLOPE: | |
201 | *data = g_variant_new_string((*model->trigger_slopes)[state->trigger_slope]); | |
202 | break; | |
203 | case SR_CONF_TRIGGER_PATTERN: | |
204 | *data = g_variant_new_string(state->trigger_pattern); | |
205 | break; | |
206 | case SR_CONF_HORIZ_TRIGGERPOS: | |
207 | *data = g_variant_new_double(state->horiz_triggerpos); | |
208 | break; | |
209 | case SR_CONF_COUPLING: | |
210 | if (!cg) | |
211 | return SR_ERR_CHANNEL_GROUP; | |
212 | if (cg_type != CG_ANALOG) | |
213 | return SR_ERR_NA; | |
214 | if ((idx = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0) | |
215 | return SR_ERR_ARG; | |
216 | *data = g_variant_new_string((*model->coupling_options)[state->analog_channels[idx].coupling]); | |
217 | break; | |
218 | case SR_CONF_SAMPLERATE: | |
219 | *data = g_variant_new_uint64(state->sample_rate); | |
220 | break; | |
221 | case SR_CONF_LOGIC_THRESHOLD: | |
222 | if (!cg) | |
223 | return SR_ERR_CHANNEL_GROUP; | |
224 | if (cg_type != CG_DIGITAL) | |
225 | return SR_ERR_NA; | |
226 | if (!model) | |
227 | return SR_ERR_ARG; | |
228 | if ((idx = std_cg_idx(cg, devc->digital_groups, model->digital_pods)) < 0) | |
229 | return SR_ERR_ARG; | |
230 | *data = g_variant_new_string((*model->logic_threshold)[state->digital_pods[idx].threshold]); | |
231 | break; | |
232 | case SR_CONF_LOGIC_THRESHOLD_CUSTOM: | |
233 | if (!cg) | |
234 | return SR_ERR_CHANNEL_GROUP; | |
235 | if (cg_type != CG_DIGITAL) | |
236 | return SR_ERR_NA; | |
237 | if (!model) | |
238 | return SR_ERR_ARG; | |
239 | if ((idx = std_cg_idx(cg, devc->digital_groups, model->digital_pods)) < 0) | |
240 | return SR_ERR_ARG; | |
241 | if (strcmp("USER2", (*model->logic_threshold)[state->digital_pods[idx].threshold])) | |
242 | return SR_ERR_NA; | |
243 | *data = g_variant_new_double(state->digital_pods[idx].user_threshold); | |
244 | break; | |
245 | default: | |
246 | return SR_ERR_NA; | |
247 | } | |
248 | ||
249 | return SR_OK; | |
250 | } | |
251 | ||
252 | static int config_set(uint32_t key, GVariant *data, | |
253 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
254 | { | |
255 | int ret, cg_type, idx, j; | |
256 | char command[MAX_COMMAND_SIZE], float_str[30], *tmp_str; | |
257 | struct dev_context *devc; | |
258 | const struct scope_config *model; | |
259 | struct scope_state *state; | |
260 | double tmp_d; | |
261 | gboolean update_sample_rate; | |
262 | ||
263 | if (!sdi) | |
264 | return SR_ERR_ARG; | |
265 | ||
266 | devc = sdi->priv; | |
267 | ||
268 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
269 | return SR_ERR; | |
270 | ||
271 | model = devc->model_config; | |
272 | state = devc->model_state; | |
273 | update_sample_rate = FALSE; | |
274 | ||
275 | switch (key) { | |
276 | case SR_CONF_LIMIT_SAMPLES: | |
277 | devc->samples_limit = g_variant_get_uint64(data); | |
278 | ret = SR_OK; | |
279 | break; | |
280 | case SR_CONF_LIMIT_FRAMES: | |
281 | devc->frame_limit = g_variant_get_uint64(data); | |
282 | ret = SR_OK; | |
283 | break; | |
284 | case SR_CONF_TRIGGER_SOURCE: | |
285 | if ((idx = std_str_idx(data, *model->trigger_sources, model->num_trigger_sources)) < 0) | |
286 | return SR_ERR_ARG; | |
287 | state->trigger_source = idx; | |
288 | g_snprintf(command, sizeof(command), | |
289 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SOURCE], | |
290 | (*model->trigger_sources)[idx]); | |
291 | ret = sr_scpi_send(sdi->conn, command); | |
292 | break; | |
293 | case SR_CONF_VDIV: | |
294 | if (!cg) | |
295 | return SR_ERR_CHANNEL_GROUP; | |
296 | if ((idx = std_u64_tuple_idx(data, *model->vdivs, model->num_vdivs)) < 0) | |
297 | return SR_ERR_ARG; | |
298 | if ((j = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0) | |
299 | return SR_ERR_ARG; | |
300 | state->analog_channels[j].vdiv = idx; | |
301 | g_ascii_formatd(float_str, sizeof(float_str), "%E", | |
302 | (float) (*model->vdivs)[idx][0] / (*model->vdivs)[idx][1]); | |
303 | g_snprintf(command, sizeof(command), | |
304 | (*model->scpi_dialect)[SCPI_CMD_SET_VERTICAL_DIV], | |
305 | j + 1, float_str); | |
306 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
307 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
308 | return SR_ERR; | |
309 | ret = SR_OK; | |
310 | break; | |
311 | case SR_CONF_TIMEBASE: | |
312 | if ((idx = std_u64_tuple_idx(data, *model->timebases, model->num_timebases)) < 0) | |
313 | return SR_ERR_ARG; | |
314 | state->timebase = idx; | |
315 | g_ascii_formatd(float_str, sizeof(float_str), "%E", | |
316 | (float) (*model->timebases)[idx][0] / (*model->timebases)[idx][1]); | |
317 | g_snprintf(command, sizeof(command), | |
318 | (*model->scpi_dialect)[SCPI_CMD_SET_TIMEBASE], | |
319 | float_str); | |
320 | ret = sr_scpi_send(sdi->conn, command); | |
321 | update_sample_rate = TRUE; | |
322 | break; | |
323 | case SR_CONF_HORIZ_TRIGGERPOS: | |
324 | tmp_d = g_variant_get_double(data); | |
325 | if (tmp_d < 0.0 || tmp_d > 1.0) | |
326 | return SR_ERR; | |
327 | state->horiz_triggerpos = tmp_d; | |
328 | tmp_d = -(tmp_d - 0.5) * | |
329 | ((double) (*model->timebases)[state->timebase][0] / | |
330 | (*model->timebases)[state->timebase][1]) | |
331 | * model->num_xdivs; | |
332 | g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d); | |
333 | g_snprintf(command, sizeof(command), | |
334 | (*model->scpi_dialect)[SCPI_CMD_SET_HORIZ_TRIGGERPOS], | |
335 | float_str); | |
336 | ret = sr_scpi_send(sdi->conn, command); | |
337 | break; | |
338 | case SR_CONF_TRIGGER_SLOPE: | |
339 | if ((idx = std_str_idx(data, *model->trigger_slopes, model->num_trigger_slopes)) < 0) | |
340 | return SR_ERR_ARG; | |
341 | state->trigger_slope = idx; | |
342 | g_snprintf(command, sizeof(command), | |
343 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SLOPE], | |
344 | (*model->trigger_slopes)[idx]); | |
345 | ret = sr_scpi_send(sdi->conn, command); | |
346 | break; | |
347 | case SR_CONF_TRIGGER_PATTERN: | |
348 | tmp_str = (char *)g_variant_get_string(data, 0); | |
349 | idx = strlen(tmp_str); | |
350 | if (idx == 0 || idx > model->analog_channels + model->digital_channels) | |
351 | return SR_ERR_ARG; | |
352 | g_snprintf(command, sizeof(command), | |
353 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_PATTERN], | |
354 | tmp_str); | |
355 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
356 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
357 | return SR_ERR; | |
358 | g_free(state->trigger_pattern); | |
359 | state->trigger_pattern = g_strdup(tmp_str); | |
360 | ret = SR_OK; | |
361 | break; | |
362 | case SR_CONF_COUPLING: | |
363 | if (!cg) | |
364 | return SR_ERR_CHANNEL_GROUP; | |
365 | if ((idx = std_str_idx(data, *model->coupling_options, model->num_coupling_options)) < 0) | |
366 | return SR_ERR_ARG; | |
367 | if ((j = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0) | |
368 | return SR_ERR_ARG; | |
369 | state->analog_channels[j].coupling = idx; | |
370 | g_snprintf(command, sizeof(command), | |
371 | (*model->scpi_dialect)[SCPI_CMD_SET_COUPLING], | |
372 | j + 1, (*model->coupling_options)[idx]); | |
373 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
374 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
375 | return SR_ERR; | |
376 | ret = SR_OK; | |
377 | break; | |
378 | case SR_CONF_LOGIC_THRESHOLD: | |
379 | if (!cg) | |
380 | return SR_ERR_CHANNEL_GROUP; | |
381 | if (cg_type != CG_DIGITAL) | |
382 | return SR_ERR_NA; | |
383 | if (!model) | |
384 | return SR_ERR_ARG; | |
385 | if ((idx = std_str_idx(data, *model->logic_threshold, model->num_logic_threshold)) < 0) | |
386 | return SR_ERR_ARG; | |
387 | if ((j = std_cg_idx(cg, devc->digital_groups, model->digital_pods)) < 0) | |
388 | return SR_ERR_ARG; | |
389 | g_snprintf(command, sizeof(command), | |
390 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_THRESHOLD], | |
391 | j + 1, (*model->logic_threshold)[idx]); | |
392 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
393 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
394 | return SR_ERR; | |
395 | state->digital_pods[j].threshold = idx; | |
396 | ret = SR_OK; | |
397 | break; | |
398 | case SR_CONF_LOGIC_THRESHOLD_CUSTOM: | |
399 | if (!cg) | |
400 | return SR_ERR_CHANNEL_GROUP; | |
401 | if (cg_type != CG_DIGITAL) | |
402 | return SR_ERR_NA; | |
403 | if (!model) | |
404 | return SR_ERR_ARG; | |
405 | if ((j = std_cg_idx(cg, devc->digital_groups, model->digital_pods)) < 0) | |
406 | return SR_ERR_ARG; | |
407 | tmp_d = g_variant_get_double(data); | |
408 | if (tmp_d < -2.0 || tmp_d > 8.0) | |
409 | return SR_ERR; | |
410 | g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d); | |
411 | g_snprintf(command, sizeof(command), | |
412 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_USER_THRESHOLD], | |
413 | j + 1, 2, float_str); // USER2 for custom logic_threshold setting | |
414 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
415 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
416 | return SR_ERR; | |
417 | g_snprintf(command, sizeof(command), | |
418 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_THRESHOLD], | |
419 | j + 1, "USER2"); | |
420 | if (sr_scpi_send(sdi->conn, command) != SR_OK || | |
421 | sr_scpi_get_opc(sdi->conn) != SR_OK) | |
422 | return SR_ERR; | |
423 | state->digital_pods[j].user_threshold = tmp_d; | |
424 | ret = SR_OK; | |
425 | break; | |
426 | default: | |
427 | ret = SR_ERR_NA; | |
428 | break; | |
429 | } | |
430 | ||
431 | if (ret == SR_OK) | |
432 | ret = sr_scpi_get_opc(sdi->conn); | |
433 | ||
434 | if (ret == SR_OK && update_sample_rate) | |
435 | ret = hmo_update_sample_rate(sdi); | |
436 | ||
437 | return ret; | |
438 | } | |
439 | ||
440 | static int config_list(uint32_t key, GVariant **data, | |
441 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
442 | { | |
443 | int cg_type = CG_NONE; | |
444 | struct dev_context *devc = NULL; | |
445 | const struct scope_config *model = NULL; | |
446 | ||
447 | if (sdi) { | |
448 | devc = sdi->priv; | |
449 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) | |
450 | return SR_ERR; | |
451 | ||
452 | model = devc->model_config; | |
453 | } | |
454 | ||
455 | switch (key) { | |
456 | case SR_CONF_SCAN_OPTIONS: | |
457 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(scanopts)); | |
458 | break; | |
459 | case SR_CONF_DEVICE_OPTIONS: | |
460 | if (!cg) { | |
461 | if (model) | |
462 | *data = std_gvar_array_u32(*model->devopts, model->num_devopts); | |
463 | else | |
464 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(drvopts)); | |
465 | } else if (cg_type == CG_ANALOG) { | |
466 | *data = std_gvar_array_u32(*model->devopts_cg_analog, model->num_devopts_cg_analog); | |
467 | } else if (cg_type == CG_DIGITAL) { | |
468 | *data = std_gvar_array_u32(*model->devopts_cg_digital, model->num_devopts_cg_digital); | |
469 | } else { | |
470 | *data = std_gvar_array_u32(NULL, 0); | |
471 | } | |
472 | break; | |
473 | case SR_CONF_COUPLING: | |
474 | if (!cg) | |
475 | return SR_ERR_CHANNEL_GROUP; | |
476 | if (!model) | |
477 | return SR_ERR_ARG; | |
478 | *data = g_variant_new_strv(*model->coupling_options, model->num_coupling_options); | |
479 | break; | |
480 | case SR_CONF_TRIGGER_SOURCE: | |
481 | if (!model) | |
482 | return SR_ERR_ARG; | |
483 | *data = g_variant_new_strv(*model->trigger_sources, model->num_trigger_sources); | |
484 | break; | |
485 | case SR_CONF_TRIGGER_SLOPE: | |
486 | if (!model) | |
487 | return SR_ERR_ARG; | |
488 | *data = g_variant_new_strv(*model->trigger_slopes, model->num_trigger_slopes); | |
489 | break; | |
490 | case SR_CONF_TIMEBASE: | |
491 | if (!model) | |
492 | return SR_ERR_ARG; | |
493 | *data = std_gvar_tuple_array(*model->timebases, model->num_timebases); | |
494 | break; | |
495 | case SR_CONF_VDIV: | |
496 | if (!cg) | |
497 | return SR_ERR_CHANNEL_GROUP; | |
498 | if (!model) | |
499 | return SR_ERR_ARG; | |
500 | *data = std_gvar_tuple_array(*model->vdivs, model->num_vdivs); | |
501 | break; | |
502 | case SR_CONF_LOGIC_THRESHOLD: | |
503 | if (!cg) | |
504 | return SR_ERR_CHANNEL_GROUP; | |
505 | if (!model) | |
506 | return SR_ERR_ARG; | |
507 | *data = g_variant_new_strv(*model->logic_threshold, model->num_logic_threshold); | |
508 | break; | |
509 | default: | |
510 | return SR_ERR_NA; | |
511 | } | |
512 | ||
513 | return SR_OK; | |
514 | } | |
515 | ||
516 | SR_PRIV int hmo_request_data(const struct sr_dev_inst *sdi) | |
517 | { | |
518 | char command[MAX_COMMAND_SIZE]; | |
519 | struct sr_channel *ch; | |
520 | struct dev_context *devc; | |
521 | const struct scope_config *model; | |
522 | ||
523 | devc = sdi->priv; | |
524 | model = devc->model_config; | |
525 | ||
526 | ch = devc->current_channel->data; | |
527 | ||
528 | switch (ch->type) { | |
529 | case SR_CHANNEL_ANALOG: | |
530 | g_snprintf(command, sizeof(command), | |
531 | (*model->scpi_dialect)[SCPI_CMD_GET_ANALOG_DATA], | |
532 | #ifdef WORDS_BIGENDIAN | |
533 | "MSBF", | |
534 | #else | |
535 | "LSBF", | |
536 | #endif | |
537 | ch->index + 1); | |
538 | break; | |
539 | case SR_CHANNEL_LOGIC: | |
540 | g_snprintf(command, sizeof(command), | |
541 | (*model->scpi_dialect)[SCPI_CMD_GET_DIG_DATA], | |
542 | ch->index < 8 ? 1 : 2); | |
543 | break; | |
544 | default: | |
545 | sr_err("Invalid channel type."); | |
546 | break; | |
547 | } | |
548 | ||
549 | return sr_scpi_send(sdi->conn, command); | |
550 | } | |
551 | ||
552 | static int hmo_check_channels(GSList *channels) | |
553 | { | |
554 | GSList *l; | |
555 | struct sr_channel *ch; | |
556 | gboolean enabled_chan[MAX_ANALOG_CHANNEL_COUNT]; | |
557 | gboolean enabled_pod[MAX_DIGITAL_GROUP_COUNT]; | |
558 | size_t idx; | |
559 | ||
560 | /* Preset "not enabled" for all channels / pods. */ | |
561 | for (idx = 0; idx < ARRAY_SIZE(enabled_chan); idx++) | |
562 | enabled_chan[idx] = FALSE; | |
563 | for (idx = 0; idx < ARRAY_SIZE(enabled_pod); idx++) | |
564 | enabled_pod[idx] = FALSE; | |
565 | ||
566 | /* | |
567 | * Determine which channels / pods are required for the caller's | |
568 | * specified configuration. | |
569 | */ | |
570 | for (l = channels; l; l = l->next) { | |
571 | ch = l->data; | |
572 | switch (ch->type) { | |
573 | case SR_CHANNEL_ANALOG: | |
574 | idx = ch->index; | |
575 | if (idx < ARRAY_SIZE(enabled_chan)) | |
576 | enabled_chan[idx] = TRUE; | |
577 | break; | |
578 | case SR_CHANNEL_LOGIC: | |
579 | idx = ch->index / 8; | |
580 | if (idx < ARRAY_SIZE(enabled_pod)) | |
581 | enabled_pod[idx] = TRUE; | |
582 | break; | |
583 | default: | |
584 | return SR_ERR; | |
585 | } | |
586 | } | |
587 | ||
588 | /* | |
589 | * Check for resource conflicts. Some channels can be either | |
590 | * analog or digital, but never both at the same time. | |
591 | * | |
592 | * Note that the constraints might depend on the specific model. | |
593 | * These tests might need some adjustment when support for more | |
594 | * models gets added to the driver. | |
595 | */ | |
596 | if (enabled_pod[0] && enabled_chan[2]) | |
597 | return SR_ERR; | |
598 | if (enabled_pod[1] && enabled_chan[3]) | |
599 | return SR_ERR; | |
600 | return SR_OK; | |
601 | } | |
602 | ||
603 | static int hmo_setup_channels(const struct sr_dev_inst *sdi) | |
604 | { | |
605 | GSList *l; | |
606 | unsigned int i; | |
607 | gboolean *pod_enabled, setup_changed; | |
608 | char command[MAX_COMMAND_SIZE]; | |
609 | struct scope_state *state; | |
610 | const struct scope_config *model; | |
611 | struct sr_channel *ch; | |
612 | struct dev_context *devc; | |
613 | struct sr_scpi_dev_inst *scpi; | |
614 | int ret; | |
615 | ||
616 | devc = sdi->priv; | |
617 | scpi = sdi->conn; | |
618 | state = devc->model_state; | |
619 | model = devc->model_config; | |
620 | setup_changed = FALSE; | |
621 | ||
622 | pod_enabled = g_try_malloc0(sizeof(gboolean) * model->digital_pods); | |
623 | ||
624 | for (l = sdi->channels; l; l = l->next) { | |
625 | ch = l->data; | |
626 | switch (ch->type) { | |
627 | case SR_CHANNEL_ANALOG: | |
628 | if (ch->enabled == state->analog_channels[ch->index].state) | |
629 | break; | |
630 | g_snprintf(command, sizeof(command), | |
631 | (*model->scpi_dialect)[SCPI_CMD_SET_ANALOG_CHAN_STATE], | |
632 | ch->index + 1, ch->enabled); | |
633 | ||
634 | if (sr_scpi_send(scpi, command) != SR_OK) { | |
635 | g_free(pod_enabled); | |
636 | return SR_ERR; | |
637 | } | |
638 | state->analog_channels[ch->index].state = ch->enabled; | |
639 | setup_changed = TRUE; | |
640 | break; | |
641 | case SR_CHANNEL_LOGIC: | |
642 | /* | |
643 | * A digital POD needs to be enabled for every group of | |
644 | * 8 channels. | |
645 | */ | |
646 | if (ch->enabled) | |
647 | pod_enabled[ch->index < 8 ? 0 : 1] = TRUE; | |
648 | ||
649 | if (ch->enabled == state->digital_channels[ch->index]) | |
650 | break; | |
651 | g_snprintf(command, sizeof(command), | |
652 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_CHAN_STATE], | |
653 | ch->index, ch->enabled); | |
654 | ||
655 | if (sr_scpi_send(scpi, command) != SR_OK) { | |
656 | g_free(pod_enabled); | |
657 | return SR_ERR; | |
658 | } | |
659 | ||
660 | state->digital_channels[ch->index] = ch->enabled; | |
661 | setup_changed = TRUE; | |
662 | break; | |
663 | default: | |
664 | g_free(pod_enabled); | |
665 | return SR_ERR; | |
666 | } | |
667 | } | |
668 | ||
669 | ret = SR_OK; | |
670 | for (i = 0; i < model->digital_pods; i++) { | |
671 | if (state->digital_pods[i].state == pod_enabled[i]) | |
672 | continue; | |
673 | g_snprintf(command, sizeof(command), | |
674 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_STATE], | |
675 | i + 1, pod_enabled[i]); | |
676 | if (sr_scpi_send(scpi, command) != SR_OK) { | |
677 | ret = SR_ERR; | |
678 | break; | |
679 | } | |
680 | state->digital_pods[i].state = pod_enabled[i]; | |
681 | setup_changed = TRUE; | |
682 | } | |
683 | g_free(pod_enabled); | |
684 | if (ret != SR_OK) | |
685 | return ret; | |
686 | ||
687 | if (setup_changed && hmo_update_sample_rate(sdi) != SR_OK) | |
688 | return SR_ERR; | |
689 | ||
690 | return SR_OK; | |
691 | } | |
692 | ||
693 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
694 | { | |
695 | GSList *l; | |
696 | gboolean digital_added[MAX_DIGITAL_GROUP_COUNT]; | |
697 | size_t group, pod_count; | |
698 | struct sr_channel *ch; | |
699 | struct dev_context *devc; | |
700 | struct sr_scpi_dev_inst *scpi; | |
701 | int ret; | |
702 | ||
703 | scpi = sdi->conn; | |
704 | devc = sdi->priv; | |
705 | ||
706 | devc->num_samples = 0; | |
707 | devc->num_frames = 0; | |
708 | ||
709 | /* Preset empty results. */ | |
710 | for (group = 0; group < ARRAY_SIZE(digital_added); group++) | |
711 | digital_added[group] = FALSE; | |
712 | g_slist_free(devc->enabled_channels); | |
713 | devc->enabled_channels = NULL; | |
714 | ||
715 | /* | |
716 | * Contruct the list of enabled channels. Determine the highest | |
717 | * number of digital pods involved in the acquisition. | |
718 | */ | |
719 | pod_count = 0; | |
720 | for (l = sdi->channels; l; l = l->next) { | |
721 | ch = l->data; | |
722 | if (!ch->enabled) | |
723 | continue; | |
724 | /* Only add a single digital channel per group (pod). */ | |
725 | group = ch->index / 8; | |
726 | if (ch->type != SR_CHANNEL_LOGIC || !digital_added[group]) { | |
727 | devc->enabled_channels = g_slist_append( | |
728 | devc->enabled_channels, ch); | |
729 | if (ch->type == SR_CHANNEL_LOGIC) { | |
730 | digital_added[group] = TRUE; | |
731 | if (pod_count < group + 1) | |
732 | pod_count = group + 1; | |
733 | } | |
734 | } | |
735 | } | |
736 | if (!devc->enabled_channels) | |
737 | return SR_ERR; | |
738 | devc->pod_count = pod_count; | |
739 | devc->logic_data = NULL; | |
740 | ||
741 | /* | |
742 | * Check constraints. Some channels can be either analog or | |
743 | * digital, but not both at the same time. | |
744 | */ | |
745 | if (hmo_check_channels(devc->enabled_channels) != SR_OK) { | |
746 | sr_err("Invalid channel configuration specified!"); | |
747 | ret = SR_ERR_NA; | |
748 | goto free_enabled; | |
749 | } | |
750 | ||
751 | /* | |
752 | * Configure the analog and digital channels and the | |
753 | * corresponding digital pods. | |
754 | */ | |
755 | if (hmo_setup_channels(sdi) != SR_OK) { | |
756 | sr_err("Failed to setup channel configuration!"); | |
757 | ret = SR_ERR; | |
758 | goto free_enabled; | |
759 | } | |
760 | ||
761 | /* | |
762 | * Start acquisition on the first enabled channel. The | |
763 | * receive routine will continue driving the acquisition. | |
764 | */ | |
765 | sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50, | |
766 | hmo_receive_data, (void *)sdi); | |
767 | ||
768 | std_session_send_df_header(sdi); | |
769 | ||
770 | devc->current_channel = devc->enabled_channels; | |
771 | ||
772 | return hmo_request_data(sdi); | |
773 | ||
774 | free_enabled: | |
775 | g_slist_free(devc->enabled_channels); | |
776 | devc->enabled_channels = NULL; | |
777 | return ret; | |
778 | } | |
779 | ||
780 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
781 | { | |
782 | struct dev_context *devc; | |
783 | struct sr_scpi_dev_inst *scpi; | |
784 | ||
785 | std_session_send_df_end(sdi); | |
786 | ||
787 | devc = sdi->priv; | |
788 | ||
789 | devc->num_samples = 0; | |
790 | devc->num_frames = 0; | |
791 | g_slist_free(devc->enabled_channels); | |
792 | devc->enabled_channels = NULL; | |
793 | scpi = sdi->conn; | |
794 | sr_scpi_source_remove(sdi->session, scpi); | |
795 | ||
796 | return SR_OK; | |
797 | } | |
798 | ||
799 | static struct sr_dev_driver hameg_hmo_driver_info = { | |
800 | .name = "hameg-hmo", | |
801 | .longname = "Hameg HMO", | |
802 | .api_version = 1, | |
803 | .init = std_init, | |
804 | .cleanup = std_cleanup, | |
805 | .scan = scan, | |
806 | .dev_list = std_dev_list, | |
807 | .dev_clear = dev_clear, | |
808 | .config_get = config_get, | |
809 | .config_set = config_set, | |
810 | .config_list = config_list, | |
811 | .dev_open = dev_open, | |
812 | .dev_close = dev_close, | |
813 | .dev_acquisition_start = dev_acquisition_start, | |
814 | .dev_acquisition_stop = dev_acquisition_stop, | |
815 | .context = NULL, | |
816 | }; | |
817 | SR_REGISTER_DEV_DRIVER(hameg_hmo_driver_info); |