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7b9d7320 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 | ||
20 | #include "libsigrok.h" | |
21 | #include "libsigrok-internal.h" | |
22 | ||
23 | #include <glib.h> | |
24 | #include <string.h> | |
504f40a5 | 25 | #include <stdarg.h> |
7b9d7320 DJ |
26 | |
27 | /* Message logging helpers with subsystem-specific prefix string. */ | |
28 | #define LOG_PREFIX "scpi: " | |
29 | #define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args) | |
30 | #define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args) | |
31 | #define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args) | |
32 | #define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args) | |
33 | #define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args) | |
34 | ||
35 | #define SCPI_READ_RETRIES 100 | |
36 | #define SCPI_READ_RETRY_TIMEOUT 10000 | |
37 | ||
aa1e3b40 DJ |
38 | /** |
39 | * Parse a string representation of a boolean-like value into a gboolean. | |
40 | * Similar to sr_parse_boolstring but rejects strings which do not represent | |
41 | * a boolean-like value. | |
42 | * | |
43 | * @param str String to convert. | |
44 | * @param ret Pointer to a gboolean where the result of the conversion will be | |
45 | * stored. | |
46 | * | |
47 | * @return SR_OK on success, SR_ERR on failure. | |
48 | */ | |
d5976d8b | 49 | static int parse_strict_bool(const char *str, gboolean *ret) |
aa1e3b40 DJ |
50 | { |
51 | if (!str) | |
52 | return SR_ERR_ARG; | |
53 | ||
54 | if (!g_strcmp0(str, "1") || | |
55 | !g_ascii_strncasecmp(str, "y", 1) || | |
56 | !g_ascii_strncasecmp(str, "t", 1) || | |
57 | !g_ascii_strncasecmp(str, "yes", 3) || | |
58 | !g_ascii_strncasecmp(str, "true", 4) || | |
59 | !g_ascii_strncasecmp(str, "on", 2)) { | |
aa1e3b40 DJ |
60 | *ret = TRUE; |
61 | return SR_OK; | |
aa1e3b40 DJ |
62 | } else if (!g_strcmp0(str, "0") || |
63 | !g_ascii_strncasecmp(str, "n", 1) || | |
64 | !g_ascii_strncasecmp(str, "f", 1) || | |
65 | !g_ascii_strncasecmp(str, "no", 2) || | |
66 | !g_ascii_strncasecmp(str, "false", 5) || | |
67 | !g_ascii_strncasecmp(str, "off", 3)) { | |
aa1e3b40 DJ |
68 | *ret = FALSE; |
69 | return SR_OK; | |
70 | } | |
71 | ||
72 | return SR_ERR; | |
73 | } | |
74 | ||
23f43dff ML |
75 | /** |
76 | * Open SCPI device. | |
77 | * | |
78 | * @param scpi Previously initialized SCPI device structure. | |
79 | * | |
80 | * @return SR_OK on success, SR_ERR on failure. | |
81 | */ | |
82 | SR_PRIV int sr_scpi_open(struct sr_scpi_dev_inst *scpi) | |
83 | { | |
84 | return scpi->open(scpi->priv); | |
85 | } | |
86 | ||
87 | /** | |
88 | * Add an event source for an SCPI device. | |
89 | * | |
90 | * @param scpi Previously initialized SCPI device structure. | |
91 | * @param events Events to check for. | |
92 | * @param timeout Max time to wait before the callback is called, ignored if 0. | |
93 | * @param cb Callback function to add. Must not be NULL. | |
94 | * @param cb_data Data for the callback function. Can be NULL. | |
95 | * | |
96 | * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or | |
97 | * SR_ERR_MALLOC upon memory allocation errors. | |
98 | */ | |
99 | SR_PRIV int sr_scpi_source_add(struct sr_scpi_dev_inst *scpi, int events, | |
100 | int timeout, sr_receive_data_callback_t cb, void *cb_data) | |
101 | { | |
102 | return scpi->source_add(scpi->priv, events, timeout, cb, cb_data); | |
103 | } | |
104 | ||
105 | /** | |
106 | * Remove event source for an SCPI device. | |
107 | * | |
108 | * @param scpi Previously initialized SCPI device structure. | |
109 | * | |
110 | * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or | |
111 | * SR_ERR_MALLOC upon memory allocation errors, SR_ERR_BUG upon | |
112 | * internal errors. | |
113 | */ | |
114 | SR_PRIV int sr_scpi_source_remove(struct sr_scpi_dev_inst *scpi) | |
115 | { | |
116 | return scpi->source_remove(scpi->priv); | |
117 | } | |
118 | ||
7b9d7320 DJ |
119 | /** |
120 | * Send a SCPI command. | |
121 | * | |
23f43dff | 122 | * @param scpi Previously initialized SCPI device structure. |
504f40a5 | 123 | * @param format Format string, to be followed by any necessary arguments. |
7b9d7320 DJ |
124 | * |
125 | * @return SR_OK on success, SR_ERR on failure. | |
126 | */ | |
23f43dff | 127 | SR_PRIV int sr_scpi_send(struct sr_scpi_dev_inst *scpi, |
504f40a5 | 128 | const char *format, ...) |
7b9d7320 | 129 | { |
504f40a5 ML |
130 | va_list args1, args2; |
131 | char *buf; | |
132 | int len, ret; | |
133 | ||
134 | /* Copy arguments since we need to make two variadic calls. */ | |
135 | va_start(args1, format); | |
136 | va_copy(args2, args1); | |
137 | ||
138 | /* Get length of buffer required. */ | |
139 | len = vsnprintf(NULL, 0, format, args1); | |
140 | va_end(args1); | |
141 | ||
142 | /* Allocate buffer and write out command. */ | |
143 | buf = g_malloc(len + 1); | |
144 | vsprintf(buf, format, args2); | |
145 | va_end(args2); | |
146 | ||
147 | /* Send command. */ | |
148 | ret = scpi->send(scpi->priv, buf); | |
149 | ||
150 | /* Free command buffer. */ | |
151 | g_free(buf); | |
152 | ||
153 | return ret; | |
23f43dff | 154 | } |
7b9d7320 | 155 | |
23f43dff ML |
156 | /** |
157 | * Receive an SCPI reply and store the reply in scpi_response. | |
158 | * | |
159 | * @param scpi Previously initialised SCPI device structure. | |
160 | * @param scpi_response Pointer where to store the SCPI response. | |
161 | * | |
162 | * @return SR_OK upon fetching a full SCPI response, SR_ERR upon fetching an | |
163 | * incomplete or no response. The allocated response must be freed by | |
164 | * the caller in the case of a full response as well in the case of | |
165 | * an incomplete. | |
166 | */ | |
167 | SR_PRIV int sr_scpi_receive(struct sr_scpi_dev_inst *scpi, | |
168 | char **scpi_response) | |
169 | { | |
170 | return scpi->receive(scpi->priv, scpi_response); | |
171 | } | |
7b9d7320 | 172 | |
a1ff9c18 ML |
173 | /** |
174 | * Read part of a response from SCPI device. | |
175 | * | |
176 | * @param scpi Previously initialised SCPI device structure. | |
177 | * @param buf Buffer to store result. | |
178 | * @param maxlen Maximum number of bytes to read. | |
179 | * | |
180 | * @return Number of bytes read, or SR_ERR upon failure. | |
181 | */ | |
182 | SR_PRIV int sr_scpi_read(struct sr_scpi_dev_inst *scpi, | |
183 | char *buf, int maxlen) | |
184 | { | |
185 | return scpi->read(scpi->priv, buf, maxlen); | |
186 | } | |
187 | ||
23f43dff ML |
188 | /** |
189 | * Close SCPI device. | |
190 | * | |
191 | * @param scpi Previously initialized SCPI device structure. | |
192 | * | |
193 | * @return SR_OK on success, SR_ERR on failure. | |
194 | */ | |
195 | SR_PRIV int sr_scpi_close(struct sr_scpi_dev_inst *scpi) | |
196 | { | |
197 | return scpi->close(scpi->priv); | |
198 | } | |
7b9d7320 | 199 | |
23f43dff ML |
200 | /** |
201 | * Free SCPI device. | |
202 | * | |
203 | * @param scpi Previously initialized SCPI device structure. | |
204 | * | |
205 | * @return SR_OK on success, SR_ERR on failure. | |
206 | */ | |
207 | SR_PRIV void sr_scpi_free(struct sr_scpi_dev_inst *scpi) | |
208 | { | |
209 | scpi->free(scpi->priv); | |
210 | g_free(scpi); | |
7b9d7320 DJ |
211 | } |
212 | ||
213 | /** | |
214 | * Send a SCPI command, receive the reply and store the reply in scpi_response. | |
215 | * | |
23f43dff | 216 | * @param scpi Previously initialised SCPI device structure. |
7b9d7320 | 217 | * @param command The SCPI command to send to the device (can be NULL). |
d5976d8b | 218 | * @param scpi_response Pointer where to store the SCPI response. |
7b9d7320 | 219 | * |
d5976d8b UH |
220 | * @return SR_OK upon fetching a full SCPI response, SR_ERR upon fetching an |
221 | * incomplete or no response. The allocated response must be freed by | |
222 | * the caller in the case of a full response as well in the case of | |
223 | * an incomplete. | |
7b9d7320 | 224 | */ |
23f43dff | 225 | SR_PRIV int sr_scpi_get_string(struct sr_scpi_dev_inst *scpi, |
d5976d8b | 226 | const char *command, char **scpi_response) |
7b9d7320 | 227 | { |
7b9d7320 | 228 | if (command) |
23f43dff | 229 | if (sr_scpi_send(scpi, command) != SR_OK) |
7b9d7320 DJ |
230 | return SR_ERR; |
231 | ||
23f43dff | 232 | return sr_scpi_receive(scpi, scpi_response); |
d730f70e DJ |
233 | } |
234 | ||
235 | /** | |
236 | * Send a SCPI command, read the reply, parse it as a bool value and store the | |
237 | * result in scpi_response. | |
238 | * | |
23f43dff | 239 | * @param scpi Previously initialised SCPI device structure. |
d730f70e DJ |
240 | * @param command The SCPI command to send to the device (can be NULL). |
241 | * @param scpi_response Pointer where to store the parsed result. | |
242 | * | |
243 | * @return SR_OK on success, SR_ERR on failure. | |
244 | */ | |
23f43dff | 245 | SR_PRIV int sr_scpi_get_bool(struct sr_scpi_dev_inst *scpi, |
d730f70e DJ |
246 | const char *command, gboolean *scpi_response) |
247 | { | |
248 | int ret; | |
249 | char *response; | |
250 | ||
251 | response = NULL; | |
252 | ||
23f43dff | 253 | if (sr_scpi_get_string(scpi, command, &response) != SR_OK) |
d730f70e DJ |
254 | if (!response) |
255 | return SR_ERR; | |
256 | ||
d5976d8b | 257 | if (parse_strict_bool(response, scpi_response) == SR_OK) |
d730f70e DJ |
258 | ret = SR_OK; |
259 | else | |
260 | ret = SR_ERR; | |
261 | ||
262 | g_free(response); | |
263 | ||
264 | return ret; | |
265 | } | |
266 | ||
267 | /** | |
268 | * Send a SCPI command, read the reply, parse it as an integer and store the | |
269 | * result in scpi_response. | |
270 | * | |
23f43dff | 271 | * @param scpi Previously initialised SCPI device structure. |
d730f70e DJ |
272 | * @param command The SCPI command to send to the device (can be NULL). |
273 | * @param scpi_response Pointer where to store the parsed result. | |
274 | * | |
275 | * @return SR_OK on success, SR_ERR on failure. | |
276 | */ | |
23f43dff | 277 | SR_PRIV int sr_scpi_get_int(struct sr_scpi_dev_inst *scpi, |
d5976d8b | 278 | const char *command, int *scpi_response) |
d730f70e DJ |
279 | { |
280 | int ret; | |
281 | char *response; | |
282 | ||
283 | response = NULL; | |
284 | ||
23f43dff | 285 | if (sr_scpi_get_string(scpi, command, &response) != SR_OK) |
d730f70e DJ |
286 | if (!response) |
287 | return SR_ERR; | |
288 | ||
289 | if (sr_atoi(response, scpi_response) == SR_OK) | |
290 | ret = SR_OK; | |
291 | else | |
292 | ret = SR_ERR; | |
293 | ||
294 | g_free(response); | |
295 | ||
296 | return ret; | |
297 | } | |
298 | ||
299 | /** | |
300 | * Send a SCPI command, read the reply, parse it as a float and store the | |
301 | * result in scpi_response. | |
302 | * | |
23f43dff | 303 | * @param scpi Previously initialised SCPI device structure. |
d730f70e DJ |
304 | * @param command The SCPI command to send to the device (can be NULL). |
305 | * @param scpi_response Pointer where to store the parsed result. | |
306 | * | |
307 | * @return SR_OK on success, SR_ERR on failure. | |
308 | */ | |
23f43dff | 309 | SR_PRIV int sr_scpi_get_float(struct sr_scpi_dev_inst *scpi, |
d730f70e DJ |
310 | const char *command, float *scpi_response) |
311 | { | |
312 | int ret; | |
313 | char *response; | |
314 | ||
315 | response = NULL; | |
316 | ||
23f43dff | 317 | if (sr_scpi_get_string(scpi, command, &response) != SR_OK) |
d730f70e DJ |
318 | if (!response) |
319 | return SR_ERR; | |
320 | ||
321 | if (sr_atof(response, scpi_response) == SR_OK) | |
322 | ret = SR_OK; | |
323 | else | |
324 | ret = SR_ERR; | |
325 | ||
326 | g_free(response); | |
327 | ||
328 | return ret; | |
329 | } | |
330 | ||
331 | /** | |
332 | * Send a SCPI command, read the reply, parse it as a double and store the | |
333 | * result in scpi_response. | |
334 | * | |
23f43dff | 335 | * @param scpi Previously initialised SCPI device structure. |
d730f70e DJ |
336 | * @param command The SCPI command to send to the device (can be NULL). |
337 | * @param scpi_response Pointer where to store the parsed result. | |
338 | * | |
339 | * @return SR_OK on success, SR_ERR on failure. | |
340 | */ | |
23f43dff | 341 | SR_PRIV int sr_scpi_get_double(struct sr_scpi_dev_inst *scpi, |
d5976d8b | 342 | const char *command, double *scpi_response) |
d730f70e DJ |
343 | { |
344 | int ret; | |
345 | char *response; | |
346 | ||
347 | response = NULL; | |
348 | ||
23f43dff | 349 | if (sr_scpi_get_string(scpi, command, &response) != SR_OK) |
d730f70e DJ |
350 | if (!response) |
351 | return SR_ERR; | |
352 | ||
353 | if (sr_atod(response, scpi_response) == SR_OK) | |
354 | ret = SR_OK; | |
355 | else | |
356 | ret = SR_ERR; | |
357 | ||
358 | g_free(response); | |
359 | ||
7b9d7320 DJ |
360 | return ret; |
361 | } | |
362 | ||
f5922ade DJ |
363 | /** |
364 | * Send a SCPI *OPC? command, read the reply and return the result of the | |
365 | * command. | |
366 | * | |
23f43dff | 367 | * @param scpi Previously initialised SCPI device structure. |
f5922ade DJ |
368 | * |
369 | * @return SR_OK on success, SR_ERR on failure. | |
370 | */ | |
23f43dff | 371 | SR_PRIV int sr_scpi_get_opc(struct sr_scpi_dev_inst *scpi) |
f5922ade DJ |
372 | { |
373 | unsigned int i; | |
374 | gboolean opc; | |
375 | ||
376 | for (i = 0; i < SCPI_READ_RETRIES; ++i) { | |
23f43dff | 377 | sr_scpi_get_bool(scpi, SCPI_CMD_OPC, &opc); |
f5922ade DJ |
378 | if (opc) |
379 | return SR_OK; | |
f5922ade DJ |
380 | g_usleep(SCPI_READ_RETRY_TIMEOUT); |
381 | } | |
382 | ||
383 | return SR_ERR; | |
384 | } | |
385 | ||
8acbb89a DJ |
386 | /** |
387 | * Send a SCPI command, read the reply, parse it as comma separated list of | |
388 | * floats and store the as an result in scpi_response. | |
389 | * | |
23f43dff | 390 | * @param scpi Previously initialised SCPI device structure. |
8acbb89a DJ |
391 | * @param command The SCPI command to send to the device (can be NULL). |
392 | * @param scpi_response Pointer where to store the parsed result. | |
393 | * | |
394 | * @return SR_OK upon successfully parsing all values, SR_ERR upon a parsing | |
d5976d8b UH |
395 | * error or upon no response. The allocated response must be freed by |
396 | * the caller in the case of an SR_OK as well as in the case of | |
397 | * parsing error. | |
8acbb89a | 398 | */ |
23f43dff | 399 | SR_PRIV int sr_scpi_get_floatv(struct sr_scpi_dev_inst *scpi, |
d5976d8b | 400 | const char *command, GArray **scpi_response) |
8acbb89a DJ |
401 | { |
402 | int ret; | |
403 | float tmp; | |
404 | char *response; | |
d5976d8b | 405 | gchar **ptr, **tokens; |
8acbb89a DJ |
406 | GArray *response_array; |
407 | ||
408 | ret = SR_OK; | |
409 | response = NULL; | |
410 | tokens = NULL; | |
411 | ||
23f43dff | 412 | if (sr_scpi_get_string(scpi, command, &response) != SR_OK) |
8acbb89a DJ |
413 | if (!response) |
414 | return SR_ERR; | |
415 | ||
416 | tokens = g_strsplit(response, ",", 0); | |
417 | ptr = tokens; | |
418 | ||
419 | response_array = g_array_sized_new(TRUE, FALSE, sizeof(float), 256); | |
420 | ||
d5976d8b | 421 | while (*ptr) { |
8acbb89a DJ |
422 | if (sr_atof(*ptr, &tmp) == SR_OK) |
423 | response_array = g_array_append_val(response_array, | |
424 | tmp); | |
425 | else | |
426 | ret = SR_ERR; | |
427 | ||
428 | ptr++; | |
429 | } | |
430 | g_strfreev(tokens); | |
431 | g_free(response); | |
432 | ||
433 | if (ret == SR_ERR && response_array->len == 0) { | |
434 | g_array_free(response_array, TRUE); | |
435 | *scpi_response = NULL; | |
436 | return SR_ERR; | |
437 | } | |
438 | ||
439 | *scpi_response = response_array; | |
440 | ||
1a323dd8 DJ |
441 | return ret; |
442 | } | |
443 | ||
444 | /** | |
445 | * Send a SCPI command, read the reply, parse it as comma separated list of | |
446 | * unsigned 8 bit integers and store the as an result in scpi_response. | |
447 | * | |
23f43dff | 448 | * @param scpi Previously initialised SCPI device structure. |
1a323dd8 DJ |
449 | * @param command The SCPI command to send to the device (can be NULL). |
450 | * @param scpi_response Pointer where to store the parsed result. | |
451 | * | |
452 | * @return SR_OK upon successfully parsing all values, SR_ERR upon a parsing | |
d5976d8b UH |
453 | * error or upon no response. The allocated response must be freed by |
454 | * the caller in the case of an SR_OK as well as in the case of | |
455 | * parsing error. | |
1a323dd8 | 456 | */ |
23f43dff | 457 | SR_PRIV int sr_scpi_get_uint8v(struct sr_scpi_dev_inst *scpi, |
d5976d8b | 458 | const char *command, GArray **scpi_response) |
1a323dd8 | 459 | { |
d5976d8b | 460 | int tmp, ret; |
1a323dd8 | 461 | char *response; |
d5976d8b | 462 | gchar **ptr, **tokens; |
1a323dd8 DJ |
463 | GArray *response_array; |
464 | ||
465 | ret = SR_OK; | |
466 | response = NULL; | |
467 | tokens = NULL; | |
468 | ||
23f43dff | 469 | if (sr_scpi_get_string(scpi, command, &response) != SR_OK) |
1a323dd8 DJ |
470 | if (!response) |
471 | return SR_ERR; | |
472 | ||
473 | tokens = g_strsplit(response, ",", 0); | |
474 | ptr = tokens; | |
475 | ||
476 | response_array = g_array_sized_new(TRUE, FALSE, sizeof(uint8_t), 256); | |
477 | ||
d5976d8b | 478 | while (*ptr) { |
1a323dd8 DJ |
479 | if (sr_atoi(*ptr, &tmp) == SR_OK) |
480 | response_array = g_array_append_val(response_array, | |
481 | tmp); | |
482 | else | |
483 | ret = SR_ERR; | |
484 | ||
485 | ptr++; | |
486 | } | |
487 | g_strfreev(tokens); | |
488 | g_free(response); | |
489 | ||
490 | if (response_array->len == 0) { | |
491 | g_array_free(response_array, TRUE); | |
492 | *scpi_response = NULL; | |
493 | return SR_ERR; | |
494 | } | |
495 | ||
496 | *scpi_response = response_array; | |
497 | ||
8acbb89a DJ |
498 | return ret; |
499 | } | |
500 | ||
7b9d7320 DJ |
501 | /** |
502 | * Send the *IDN? SCPI command, receive the reply, parse it and store the | |
503 | * reply as a sr_scpi_hw_info structure in the supplied scpi_response pointer. | |
504 | * | |
d5976d8b UH |
505 | * The hw_info structure must be freed by the caller via sr_scpi_hw_info_free(). |
506 | * | |
23f43dff | 507 | * @param scpi Previously initialised SCPI device structure. |
7b9d7320 DJ |
508 | * @param scpi_response Pointer where to store the hw_info structure. |
509 | * | |
510 | * @return SR_OK upon success, SR_ERR on failure. | |
7b9d7320 | 511 | */ |
23f43dff | 512 | SR_PRIV int sr_scpi_get_hw_id(struct sr_scpi_dev_inst *scpi, |
7b9d7320 DJ |
513 | struct sr_scpi_hw_info **scpi_response) |
514 | { | |
515 | int num_tokens; | |
516 | char *response; | |
517 | gchar **tokens; | |
7b9d7320 DJ |
518 | struct sr_scpi_hw_info *hw_info; |
519 | ||
520 | response = NULL; | |
521 | tokens = NULL; | |
522 | ||
23f43dff | 523 | if (sr_scpi_get_string(scpi, SCPI_CMD_IDN, &response) != SR_OK) |
7b9d7320 DJ |
524 | if (!response) |
525 | return SR_ERR; | |
526 | ||
527 | /* | |
528 | * The response to a '*IDN?' is specified by the SCPI spec. It contains | |
529 | * a comma-separated list containing the manufacturer name, instrument | |
530 | * model, serial number of the instrument and the firmware version. | |
531 | */ | |
532 | tokens = g_strsplit(response, ",", 0); | |
533 | ||
534 | for (num_tokens = 0; tokens[num_tokens] != NULL; num_tokens++); | |
535 | ||
536 | if (num_tokens != 4) { | |
d5976d8b | 537 | sr_dbg("IDN response not according to spec: %80.s.", response); |
7b9d7320 DJ |
538 | g_strfreev(tokens); |
539 | g_free(response); | |
540 | return SR_ERR; | |
541 | } | |
542 | g_free(response); | |
543 | ||
544 | hw_info = g_try_malloc(sizeof(struct sr_scpi_hw_info)); | |
545 | if (!hw_info) { | |
546 | g_strfreev(tokens); | |
547 | return SR_ERR_MALLOC; | |
548 | } | |
549 | ||
550 | hw_info->manufacturer = g_strdup(tokens[0]); | |
551 | hw_info->model = g_strdup(tokens[1]); | |
552 | hw_info->serial_number = g_strdup(tokens[2]); | |
553 | hw_info->firmware_version = g_strdup(tokens[3]); | |
554 | ||
555 | g_strfreev(tokens); | |
556 | ||
557 | *scpi_response = hw_info; | |
558 | ||
559 | return SR_OK; | |
560 | } | |
561 | ||
562 | /** | |
563 | * Free a sr_scpi_hw_info struct. | |
564 | * | |
565 | * @param hw_info Pointer to the struct to free. | |
566 | * | |
567 | * This function is safe to call with a NULL pointer. | |
568 | */ | |
569 | SR_PRIV void sr_scpi_hw_info_free(struct sr_scpi_hw_info *hw_info) | |
570 | { | |
571 | if (hw_info) { | |
572 | g_free(hw_info->manufacturer); | |
573 | g_free(hw_info->model); | |
574 | g_free(hw_info->serial_number); | |
575 | g_free(hw_info->firmware_version); | |
576 | g_free(hw_info); | |
577 | } | |
578 | } |