]>
Commit | Line | Data |
---|---|---|
e75ee7de HV |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2015 Hannu Vuolasaho <vuokkosetae@gmail.com> | |
2e129b8b | 5 | * Copyright (C) 2018-2019 Frank Stettner <frank-stettner@gmx.net> |
e75ee7de HV |
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 "protocol.h" | |
23 | ||
d7083042 | 24 | #define DEVICE_PROCESSING_TIME_MS 80 |
0f63fbea | 25 | #define EXTRA_PROCESSING_TIME_MS 450 |
d7083042 | 26 | |
16fc7ee2 | 27 | SR_PRIV int korad_kaxxxxp_send_cmd(struct sr_serial_dev_inst *serial, |
81609a79 | 28 | const char *cmd) |
d7083042 HV |
29 | { |
30 | int ret; | |
31 | ||
32 | sr_dbg("Sending '%s'.", cmd); | |
33 | if ((ret = serial_write_blocking(serial, cmd, strlen(cmd), 0)) < 0) { | |
34 | sr_err("Error sending command: %d.", ret); | |
35 | return ret; | |
36 | } | |
37 | ||
38 | return ret; | |
39 | } | |
40 | ||
d2cc60bd GS |
41 | /** |
42 | * Read a variable length non-terminated string (caller specified maximum size). | |
43 | * | |
44 | * @param[in] serial The serial port to read from. | |
45 | * @param[in] count The maximum amount of data to read. | |
46 | * @param[out] buf The buffer to read data into. Must be larger than @a count. | |
47 | * | |
48 | * @return The amount of received data, or negative in case of error. | |
49 | * See @ref SR_ERR and other error codes. | |
50 | * | |
51 | * @internal | |
52 | * | |
53 | * The protocol has no concept of request/response termination. The only | |
54 | * terminating conditions are either the caller's expected maxmimum byte | |
55 | * count, or a period of time without receive data. It's essential to | |
56 | * accept a longer initial period of time before the first receive data | |
57 | * is seen. The supported devices can be very slow to respond. | |
58 | * | |
59 | * The protocol is text based. That's why the 'count' parameter specifies | |
60 | * the expected number of text characters, and does not include the NUL | |
61 | * termination which is not part of the wire protocol but gets added by | |
62 | * the receive routine. The caller provided buffer is expected to have | |
63 | * enough space for the text data and the NUL termination. | |
64 | * | |
65 | * Implementation detail: It's assumed that once receive data was seen, | |
66 | * remaining response data will follow at wire speed. No further delays | |
67 | * are expected beyond bitrate expectations. All normal commands in the | |
68 | * acquisition phase are of fixed length which is known to the caller. | |
69 | * Identification during device scan needs to deal with variable length | |
70 | * data. Quick termination after reception is important there, as is the | |
71 | * larger initial timeout period before receive data is seen. | |
72 | */ | |
16fc7ee2 | 73 | SR_PRIV int korad_kaxxxxp_read_chars(struct sr_serial_dev_inst *serial, |
d2cc60bd | 74 | size_t count, char *buf) |
d7083042 | 75 | { |
d2cc60bd GS |
76 | int timeout_first, timeout_later, timeout; |
77 | size_t retries_first, retries_later, retries; | |
78 | size_t received; | |
79 | int ret; | |
d7083042 | 80 | |
d2cc60bd GS |
81 | /* Clear the buffer early, to simplify the receive code path. */ |
82 | memset(buf, 0, count + 1); | |
d7083042 | 83 | |
d2cc60bd GS |
84 | /* |
85 | * This calculation is aiming for backwards compatibility with | |
86 | * an earlier implementation. An initial timeout is used which | |
87 | * depends on the expected response byte count, and a maximum | |
88 | * iteration count is used for read attempts. | |
89 | * | |
90 | * TODO Consider an absolute initial timeout instead, to reduce | |
91 | * accumulated rounding errors for serial timeout results. The | |
92 | * iteration with a short period is still required for variable | |
93 | * length responses, because otherwise the serial communication | |
94 | * layer would spend the total amount of time waiting for the | |
95 | * remaining bytes, while the device probe code path by design | |
96 | * passes a larger acceptable count than the typical and legal | |
97 | * response would occupy. | |
98 | * | |
99 | * After initial receive data was seen, a shorter timeout is | |
100 | * used which corresponds to a few bytes at wire speed. Idle | |
101 | * periods without receive data longer than this threshold are | |
102 | * taken as the end of the response. This is not compatible to | |
103 | * the previous implementation, but was found to work as well. | |
104 | * And severely reduces the time spent scanning for devices. | |
105 | */ | |
106 | timeout_first = serial_timeout(serial, count); | |
107 | retries_first = 100; | |
108 | timeout_later = serial_timeout(serial, 3); | |
109 | retries_later = 1; | |
110 | ||
111 | sr_spew("want %zu bytes, timeout/retry: init %d/%zu, later %d/%zu.", | |
112 | count, timeout_first, retries_first, | |
113 | timeout_later, retries_later); | |
114 | ||
115 | /* | |
116 | * Run a sequence of read attempts. Try with the larger timeout | |
117 | * and a high retry count until the first receive data became | |
118 | * available. Then continue with a short timeout and small retry | |
119 | * count. | |
120 | * | |
121 | * Failed read is fatal, immediately terminates the read sequence. | |
122 | * A timeout in the initial phase just keeps repeating. A timeout | |
123 | * after receive data was seen regularly terminates the sequence. | |
124 | * Successful reads of non-empty responses keep extending the | |
125 | * read sequence until no more receive data is available. | |
126 | */ | |
127 | received = 0; | |
128 | timeout = timeout_first; | |
129 | retries = retries_first; | |
130 | while (received < count && retries--) { | |
131 | ret = serial_read_blocking(serial, | |
132 | &buf[received], count - received, timeout); | |
133 | if (ret < 0) { | |
134 | sr_err("Error %d reading %zu bytes from device.", | |
d7083042 HV |
135 | ret, count); |
136 | return ret; | |
137 | } | |
d2cc60bd GS |
138 | if (ret == 0 && !received) |
139 | continue; | |
140 | if (ret == 0 && received) { | |
141 | sr_spew("receive timed out, want %zu, received %zu.", | |
142 | count, received); | |
143 | break; | |
144 | } | |
d7083042 | 145 | received += ret; |
d2cc60bd GS |
146 | timeout = timeout_later; |
147 | retries = retries_later; | |
148 | } | |
149 | /* TODO Escape non-printables? Seen those with status queries. */ | |
150 | sr_dbg("got %zu bytes, received: '%s'.", received, buf); | |
d7083042 | 151 | |
d2cc60bd | 152 | return received; |
d7083042 HV |
153 | } |
154 | ||
155 | static void give_device_time_to_process(struct dev_context *devc) | |
156 | { | |
157 | int64_t sleeping_time; | |
158 | ||
0f63fbea | 159 | if (!devc->next_req_time) |
587ee115 GS |
160 | return; |
161 | ||
0f63fbea | 162 | sleeping_time = devc->next_req_time - g_get_monotonic_time(); |
d7083042 HV |
163 | if (sleeping_time > 0) { |
164 | g_usleep(sleeping_time); | |
ef2bcf11 | 165 | sr_spew("Sleeping for processing %" PRIi64 " usec", sleeping_time); |
d7083042 HV |
166 | } |
167 | } | |
168 | ||
0f63fbea GS |
169 | static int64_t next_req_time(struct dev_context *devc, |
170 | gboolean is_set, int target) | |
171 | { | |
172 | gboolean is_slow_device, is_long_command; | |
173 | int64_t processing_time_us; | |
174 | ||
175 | is_slow_device = devc->model->quirks & KORAD_QUIRK_SLOW_PROCESSING; | |
176 | is_long_command = is_set; | |
177 | is_long_command |= target == KAXXXXP_STATUS; | |
178 | ||
179 | processing_time_us = DEVICE_PROCESSING_TIME_MS; | |
180 | if (is_slow_device && is_long_command) | |
181 | processing_time_us += EXTRA_PROCESSING_TIME_MS; | |
182 | processing_time_us *= 1000; | |
183 | ||
184 | return g_get_monotonic_time() + processing_time_us; | |
185 | } | |
186 | ||
16fc7ee2 | 187 | SR_PRIV int korad_kaxxxxp_set_value(struct sr_serial_dev_inst *serial, |
81609a79 | 188 | int target, struct dev_context *devc) |
d7083042 | 189 | { |
c179e476 | 190 | char msg[20]; |
d7083042 HV |
191 | int ret; |
192 | ||
3f9b48ae | 193 | g_mutex_lock(&devc->rw_mutex); |
d7083042 HV |
194 | give_device_time_to_process(devc); |
195 | ||
c179e476 GS |
196 | msg[0] = '\0'; |
197 | ret = SR_OK; | |
3f9b48ae | 198 | switch (target) { |
16fc7ee2 UH |
199 | case KAXXXXP_CURRENT: |
200 | case KAXXXXP_VOLTAGE: | |
201 | case KAXXXXP_STATUS: | |
c179e476 GS |
202 | sr_err("Can't set measured value %d.", target); |
203 | ret = SR_ERR; | |
204 | break; | |
8da30037 | 205 | case KAXXXXP_CURRENT_LIMIT: |
c179e476 GS |
206 | sr_snprintf_ascii(msg, sizeof(msg), |
207 | "ISET1:%05.3f", devc->set_current_limit); | |
d7083042 | 208 | break; |
8da30037 | 209 | case KAXXXXP_VOLTAGE_TARGET: |
c179e476 GS |
210 | sr_snprintf_ascii(msg, sizeof(msg), |
211 | "VSET1:%05.2f", devc->set_voltage_target); | |
d7083042 | 212 | break; |
16fc7ee2 | 213 | case KAXXXXP_OUTPUT: |
c179e476 GS |
214 | sr_snprintf_ascii(msg, sizeof(msg), |
215 | "OUT%1d", (devc->set_output_enabled) ? 1 : 0); | |
8da30037 FS |
216 | /* Set value back to recognize changes */ |
217 | devc->output_enabled = devc->set_output_enabled; | |
d7083042 | 218 | break; |
16fc7ee2 | 219 | case KAXXXXP_BEEP: |
c179e476 GS |
220 | sr_snprintf_ascii(msg, sizeof(msg), |
221 | "BEEP%1d", (devc->set_beep_enabled) ? 1 : 0); | |
d7083042 | 222 | break; |
16fc7ee2 | 223 | case KAXXXXP_OCP: |
c179e476 GS |
224 | sr_snprintf_ascii(msg, sizeof(msg), |
225 | "OCP%1d", (devc->set_ocp_enabled) ? 1 : 0); | |
8da30037 FS |
226 | /* Set value back to recognize changes */ |
227 | devc->ocp_enabled = devc->set_ocp_enabled; | |
c40ed60f | 228 | break; |
16fc7ee2 | 229 | case KAXXXXP_OVP: |
c179e476 GS |
230 | sr_snprintf_ascii(msg, sizeof(msg), |
231 | "OVP%1d", (devc->set_ovp_enabled) ? 1 : 0); | |
8da30037 FS |
232 | /* Set value back to recognize changes */ |
233 | devc->ovp_enabled = devc->set_ovp_enabled; | |
c40ed60f | 234 | break; |
16fc7ee2 | 235 | case KAXXXXP_SAVE: |
d7083042 | 236 | if (devc->program < 1 || devc->program > 5) { |
c179e476 GS |
237 | sr_err("Program %d is not in the supported 1-5 range.", |
238 | devc->program); | |
239 | ret = SR_ERR; | |
240 | break; | |
d7083042 | 241 | } |
c179e476 GS |
242 | sr_snprintf_ascii(msg, sizeof(msg), |
243 | "SAV%1d", devc->program); | |
d7083042 | 244 | break; |
16fc7ee2 | 245 | case KAXXXXP_RECALL: |
d7083042 | 246 | if (devc->program < 1 || devc->program > 5) { |
c179e476 GS |
247 | sr_err("Program %d is not in the supported 1-5 range.", |
248 | devc->program); | |
249 | ret = SR_ERR; | |
250 | break; | |
d7083042 | 251 | } |
c179e476 GS |
252 | sr_snprintf_ascii(msg, sizeof(msg), |
253 | "RCL%1d", devc->program); | |
d7083042 HV |
254 | break; |
255 | default: | |
c179e476 GS |
256 | sr_err("Don't know how to set target %d.", target); |
257 | ret = SR_ERR; | |
258 | break; | |
d7083042 HV |
259 | } |
260 | ||
c179e476 GS |
261 | if (ret == SR_OK && msg[0]) { |
262 | ret = korad_kaxxxxp_send_cmd(serial, msg); | |
0f63fbea | 263 | devc->next_req_time = next_req_time(devc, TRUE, target); |
c179e476 | 264 | } |
3f9b48ae FS |
265 | |
266 | g_mutex_unlock(&devc->rw_mutex); | |
d7083042 HV |
267 | |
268 | return ret; | |
269 | } | |
270 | ||
3f9b48ae | 271 | SR_PRIV int korad_kaxxxxp_get_value(struct sr_serial_dev_inst *serial, |
81609a79 | 272 | int target, struct dev_context *devc) |
d7083042 | 273 | { |
3f9b48ae FS |
274 | int ret, count; |
275 | char reply[6]; | |
276 | float *value; | |
277 | char status_byte; | |
77e6749a | 278 | gboolean needs_ovp_quirk; |
2e129b8b | 279 | gboolean prev_status; |
d7083042 | 280 | |
3f9b48ae | 281 | g_mutex_lock(&devc->rw_mutex); |
d7083042 HV |
282 | give_device_time_to_process(devc); |
283 | ||
3f9b48ae FS |
284 | value = NULL; |
285 | count = 5; | |
286 | ||
287 | switch (target) { | |
16fc7ee2 | 288 | case KAXXXXP_CURRENT: |
d7083042 | 289 | /* Read current from device. */ |
16fc7ee2 | 290 | ret = korad_kaxxxxp_send_cmd(serial, "IOUT1?"); |
3f9b48ae | 291 | value = &(devc->current); |
d7083042 | 292 | break; |
8da30037 | 293 | case KAXXXXP_CURRENT_LIMIT: |
d7083042 | 294 | /* Read set current from device. */ |
16fc7ee2 | 295 | ret = korad_kaxxxxp_send_cmd(serial, "ISET1?"); |
8da30037 | 296 | value = &(devc->current_limit); |
d7083042 | 297 | break; |
16fc7ee2 | 298 | case KAXXXXP_VOLTAGE: |
d7083042 | 299 | /* Read voltage from device. */ |
16fc7ee2 | 300 | ret = korad_kaxxxxp_send_cmd(serial, "VOUT1?"); |
3f9b48ae | 301 | value = &(devc->voltage); |
d7083042 | 302 | break; |
8da30037 | 303 | case KAXXXXP_VOLTAGE_TARGET: |
d7083042 | 304 | /* Read set voltage from device. */ |
16fc7ee2 | 305 | ret = korad_kaxxxxp_send_cmd(serial, "VSET1?"); |
8da30037 | 306 | value = &(devc->voltage_target); |
d7083042 | 307 | break; |
16fc7ee2 UH |
308 | case KAXXXXP_STATUS: |
309 | case KAXXXXP_OUTPUT: | |
3f9b48ae FS |
310 | case KAXXXXP_OCP: |
311 | case KAXXXXP_OVP: | |
d7083042 | 312 | /* Read status from device. */ |
16fc7ee2 | 313 | ret = korad_kaxxxxp_send_cmd(serial, "STATUS?"); |
3f9b48ae | 314 | count = 1; |
d7083042 HV |
315 | break; |
316 | default: | |
3f9b48ae | 317 | sr_err("Don't know how to query %d.", target); |
5dfa77b5 GS |
318 | ret = SR_ERR; |
319 | } | |
ea9cbb6c | 320 | if (ret < 0) { |
3f9b48ae | 321 | g_mutex_unlock(&devc->rw_mutex); |
5dfa77b5 | 322 | return ret; |
d7083042 HV |
323 | } |
324 | ||
0f63fbea | 325 | devc->next_req_time = next_req_time(devc, FALSE, target); |
d7083042 | 326 | |
3f9b48ae FS |
327 | if ((ret = korad_kaxxxxp_read_chars(serial, count, reply)) < 0) { |
328 | g_mutex_unlock(&devc->rw_mutex); | |
d7083042 | 329 | return ret; |
3f9b48ae | 330 | } |
d7083042 | 331 | |
3f9b48ae FS |
332 | if (value) { |
333 | sr_atof_ascii((const char *)&reply, value); | |
334 | sr_dbg("value: %f", *value); | |
d7083042 HV |
335 | } else { |
336 | /* We have status reply. */ | |
3f9b48ae | 337 | status_byte = reply[0]; |
2e129b8b FS |
338 | |
339 | /* Constant current channel one. */ | |
340 | prev_status = devc->cc_mode[0]; | |
341 | devc->cc_mode[0] = !(status_byte & (1 << 0)); | |
342 | devc->cc_mode_1_changed = devc->cc_mode[0] != prev_status; | |
343 | /* Constant current channel two. */ | |
344 | prev_status = devc->cc_mode[1]; | |
345 | devc->cc_mode[1] = !(status_byte & (1 << 1)); | |
346 | devc->cc_mode_2_changed = devc->cc_mode[1] != prev_status; | |
347 | ||
d7083042 | 348 | /* |
2e129b8b | 349 | * Tracking: |
d7083042 HV |
350 | * status_byte & ((1 << 2) | (1 << 3)) |
351 | * 00 independent 01 series 11 parallel | |
352 | */ | |
2e129b8b FS |
353 | devc->beep_enabled = status_byte & (1 << 4); |
354 | ||
355 | /* OCP enabled. */ | |
356 | prev_status = devc->ocp_enabled; | |
357 | devc->ocp_enabled = status_byte & (1 << 5); | |
358 | devc->ocp_enabled_changed = devc->ocp_enabled != prev_status; | |
359 | ||
360 | /* Output status. */ | |
361 | prev_status = devc->output_enabled; | |
362 | devc->output_enabled = status_byte & (1 << 6); | |
363 | devc->output_enabled_changed = devc->output_enabled != prev_status; | |
364 | ||
365 | /* OVP enabled, special handling for Velleman LABPS3005 quirk. */ | |
77e6749a GS |
366 | needs_ovp_quirk = devc->model->quirks & KORAD_QUIRK_LABPS_OVP_EN; |
367 | if (!needs_ovp_quirk || devc->output_enabled) { | |
2e129b8b FS |
368 | prev_status = devc->ovp_enabled; |
369 | devc->ovp_enabled = status_byte & (1 << 7); | |
370 | devc->ovp_enabled_changed = devc->ovp_enabled != prev_status; | |
371 | } | |
372 | ||
d7083042 | 373 | sr_dbg("Status: 0x%02x", status_byte); |
c40ed60f | 374 | sr_spew("Status: CH1: constant %s CH2: constant %s. " |
253d653d FS |
375 | "Tracking would be %s and %s. Output is %s. " |
376 | "OCP is %s, OVP is %s. Device is %s.", | |
d7083042 HV |
377 | (status_byte & (1 << 0)) ? "voltage" : "current", |
378 | (status_byte & (1 << 1)) ? "voltage" : "current", | |
c40ed60f | 379 | (status_byte & (1 << 2)) ? "parallel" : "series", |
d7083042 | 380 | (status_byte & (1 << 3)) ? "tracking" : "independent", |
c40ed60f | 381 | (status_byte & (1 << 6)) ? "enabled" : "disabled", |
253d653d FS |
382 | (status_byte & (1 << 5)) ? "enabled" : "disabled", |
383 | (status_byte & (1 << 7)) ? "enabled" : "disabled", | |
384 | (status_byte & (1 << 4)) ? "beeping" : "silent"); | |
d7083042 | 385 | } |
3f9b48ae | 386 | |
8abdf006 | 387 | /* Read the sixth byte from ISET? BUG workaround. */ |
8da30037 | 388 | if (target == KAXXXXP_CURRENT_LIMIT) |
8abdf006 | 389 | serial_read_blocking(serial, &status_byte, 1, 10); |
3f9b48ae FS |
390 | |
391 | g_mutex_unlock(&devc->rw_mutex); | |
392 | ||
393 | return ret; | |
394 | } | |
395 | ||
396 | SR_PRIV int korad_kaxxxxp_get_all_values(struct sr_serial_dev_inst *serial, | |
81609a79 | 397 | struct dev_context *devc) |
3f9b48ae FS |
398 | { |
399 | int ret, target; | |
400 | ||
401 | for (target = KAXXXXP_CURRENT; | |
402 | target <= KAXXXXP_STATUS; target++) { | |
403 | if ((ret = korad_kaxxxxp_get_value(serial, target, devc)) < 0) | |
404 | return ret; | |
405 | } | |
d7083042 HV |
406 | |
407 | return ret; | |
408 | } | |
409 | ||
410 | static void next_measurement(struct dev_context *devc) | |
411 | { | |
3f9b48ae | 412 | switch (devc->acquisition_target) { |
16fc7ee2 | 413 | case KAXXXXP_CURRENT: |
3f9b48ae | 414 | devc->acquisition_target = KAXXXXP_VOLTAGE; |
d7083042 | 415 | break; |
16fc7ee2 | 416 | case KAXXXXP_VOLTAGE: |
3f9b48ae | 417 | devc->acquisition_target = KAXXXXP_STATUS; |
d7083042 | 418 | break; |
16fc7ee2 | 419 | case KAXXXXP_STATUS: |
3f9b48ae | 420 | devc->acquisition_target = KAXXXXP_CURRENT; |
d7083042 HV |
421 | break; |
422 | default: | |
3f9b48ae FS |
423 | devc->acquisition_target = KAXXXXP_CURRENT; |
424 | sr_err("Invalid target for next acquisition."); | |
d7083042 HV |
425 | } |
426 | } | |
427 | ||
16fc7ee2 | 428 | SR_PRIV int korad_kaxxxxp_receive_data(int fd, int revents, void *cb_data) |
e75ee7de | 429 | { |
d7083042 | 430 | struct sr_dev_inst *sdi; |
e75ee7de | 431 | struct dev_context *devc; |
d7083042 HV |
432 | struct sr_serial_dev_inst *serial; |
433 | struct sr_datafeed_packet packet; | |
2e715341 UH |
434 | struct sr_datafeed_analog analog; |
435 | struct sr_analog_encoding encoding; | |
436 | struct sr_analog_meaning meaning; | |
437 | struct sr_analog_spec spec; | |
23165d7b | 438 | GSList *l; |
e75ee7de HV |
439 | |
440 | (void)fd; | |
a7e48f3c | 441 | (void)revents; |
e75ee7de HV |
442 | |
443 | if (!(sdi = cb_data)) | |
444 | return TRUE; | |
445 | ||
446 | if (!(devc = sdi->priv)) | |
447 | return TRUE; | |
448 | ||
d7083042 HV |
449 | serial = sdi->conn; |
450 | ||
a7e48f3c FS |
451 | /* Get the value. */ |
452 | korad_kaxxxxp_get_value(serial, devc->acquisition_target, devc); | |
453 | ||
454 | /* Note: digits/spec_digits will be overridden later. */ | |
455 | sr_analog_init(&analog, &encoding, &meaning, &spec, 0); | |
456 | ||
457 | /* Send the value forward. */ | |
458 | packet.type = SR_DF_ANALOG; | |
459 | packet.payload = &analog; | |
460 | analog.num_samples = 1; | |
461 | l = g_slist_copy(sdi->channels); | |
462 | if (devc->acquisition_target == KAXXXXP_CURRENT) { | |
463 | l = g_slist_remove_link(l, g_slist_nth(l, 0)); | |
464 | analog.meaning->channels = l; | |
465 | analog.meaning->mq = SR_MQ_CURRENT; | |
466 | analog.meaning->unit = SR_UNIT_AMPERE; | |
d1a3f3be | 467 | analog.meaning->mqflags = SR_MQFLAG_DC; |
a7e48f3c FS |
468 | analog.encoding->digits = 3; |
469 | analog.spec->spec_digits = 3; | |
470 | analog.data = &devc->current; | |
471 | sr_session_send(sdi, &packet); | |
472 | } else if (devc->acquisition_target == KAXXXXP_VOLTAGE) { | |
473 | l = g_slist_remove_link(l, g_slist_nth(l, 1)); | |
474 | analog.meaning->channels = l; | |
475 | analog.meaning->mq = SR_MQ_VOLTAGE; | |
476 | analog.meaning->unit = SR_UNIT_VOLT; | |
477 | analog.meaning->mqflags = SR_MQFLAG_DC; | |
478 | analog.encoding->digits = 2; | |
479 | analog.spec->spec_digits = 2; | |
480 | analog.data = &devc->voltage; | |
481 | sr_session_send(sdi, &packet); | |
482 | sr_sw_limits_update_samples_read(&devc->limits, 1); | |
2e129b8b FS |
483 | } else if (devc->acquisition_target == KAXXXXP_STATUS) { |
484 | if (devc->cc_mode_1_changed) { | |
485 | sr_session_send_meta(sdi, SR_CONF_REGULATION, | |
486 | g_variant_new_string((devc->cc_mode[0]) ? "CC" : "CV")); | |
487 | devc->cc_mode_1_changed = FALSE; | |
488 | } | |
489 | if (devc->cc_mode_2_changed) { | |
490 | sr_session_send_meta(sdi, SR_CONF_REGULATION, | |
491 | g_variant_new_string((devc->cc_mode[1]) ? "CC" : "CV")); | |
492 | devc->cc_mode_2_changed = FALSE; | |
493 | } | |
494 | if (devc->output_enabled_changed) { | |
495 | sr_session_send_meta(sdi, SR_CONF_ENABLED, | |
496 | g_variant_new_boolean(devc->output_enabled)); | |
497 | devc->output_enabled_changed = FALSE; | |
498 | } | |
499 | if (devc->ocp_enabled_changed) { | |
500 | sr_session_send_meta(sdi, SR_CONF_OVER_CURRENT_PROTECTION_ENABLED, | |
501 | g_variant_new_boolean(devc->ocp_enabled)); | |
502 | devc->ocp_enabled_changed = FALSE; | |
503 | } | |
504 | if (devc->ovp_enabled_changed) { | |
505 | sr_session_send_meta(sdi, SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED, | |
506 | g_variant_new_boolean(devc->ovp_enabled)); | |
507 | devc->ovp_enabled_changed = FALSE; | |
508 | } | |
d7083042 | 509 | } |
a7e48f3c | 510 | next_measurement(devc); |
d7083042 | 511 | |
3f9b48ae | 512 | if (sr_sw_limits_check(&devc->limits)) |
d2f7c417 | 513 | sr_dev_acquisition_stop(sdi); |
e75ee7de HV |
514 | |
515 | return TRUE; | |
516 | } |