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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz> | |
5 | * Copyright (C) 2014 Bert Vermeulen <bert@biot.com> (code from atten-pps3xxx) | |
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 <ctype.h> | |
23 | #include <math.h> | |
24 | #include <string.h> | |
25 | #include "protocol.h" | |
26 | ||
27 | SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen); | |
28 | SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char *fmt, va_list args); | |
29 | SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char *fmt, ...); | |
30 | SR_PRIV int lps_cmd_reply(char *reply, struct sr_serial_dev_inst *serial, const char *fmt, ...); | |
31 | SR_PRIV int lps_query_status(struct sr_dev_inst *sdi); | |
32 | ||
33 | #define SERIALCOMM "2400/8n1/dtr=1/rts=1/flow=0" | |
34 | ||
35 | static const uint32_t scanopts[] = { | |
36 | SR_CONF_CONN, | |
37 | SR_CONF_SERIALCOMM, | |
38 | }; | |
39 | ||
40 | static const uint32_t drvopts[] = { | |
41 | SR_CONF_POWER_SUPPLY, | |
42 | }; | |
43 | ||
44 | static const uint32_t devopts[] = { | |
45 | SR_CONF_CONTINUOUS, | |
46 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
47 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
48 | SR_CONF_CHANNEL_CONFIG | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
49 | }; | |
50 | ||
51 | /** Hardware capabilities channel 1, 2. */ | |
52 | static const uint32_t devopts_cg_ch12[] = { | |
53 | SR_CONF_VOLTAGE | SR_CONF_GET, | |
54 | SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
55 | SR_CONF_CURRENT | SR_CONF_GET, | |
56 | SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
57 | SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET, | |
58 | }; | |
59 | ||
60 | /** Hardware capabilities channel 3 (LPS-304/305 only). */ | |
61 | static const uint32_t devopts_cg_ch3[] = { | |
62 | SR_CONF_VOLTAGE | SR_CONF_GET, | |
63 | SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET, | |
64 | }; | |
65 | ||
66 | static const char *channel_modes[] = { | |
67 | "Independent", | |
68 | "Track1", | |
69 | "Track2", | |
70 | }; | |
71 | ||
72 | static const struct lps_modelspec models[] = { | |
73 | { LPS_UNKNOWN, "Dummy", 0, | |
74 | { | |
75 | ||
76 | } | |
77 | }, | |
78 | { LPS_301, "LPS-301", 1, | |
79 | { | |
80 | /* Channel 1 */ | |
81 | { { 0, 32, 0.01 }, { 0.005, 2, 0.001 } }, | |
82 | }, | |
83 | }, | |
84 | { LPS_302, "LPS-302", 1, | |
85 | { | |
86 | /* Channel 1 */ | |
87 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
88 | }, | |
89 | }, | |
90 | { LPS_303, "LPS-303", 1, | |
91 | { | |
92 | /* Channel 1 */ | |
93 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
94 | }, | |
95 | }, | |
96 | { LPS_304, "LPS-304", 3, | |
97 | { | |
98 | /* Channel 1 */ | |
99 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
100 | /* Channel 2 */ | |
101 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
102 | /* Channel 3 */ | |
103 | { { 5, 5, 0.0 }, { 0.005, 3, 0.001 } }, | |
104 | }, | |
105 | }, | |
106 | { LPS_305, "LPS-305", 3, | |
107 | { | |
108 | /* Channel 1 */ | |
109 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
110 | /* Channel 2 */ | |
111 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
112 | /* Channel 3 */ | |
113 | { { 3.3, 5, 1.7 }, { 0.005, 3, 0.001 } }, | |
114 | }, | |
115 | }, | |
116 | }; | |
117 | ||
118 | /** Send command to device with va_list. */ | |
119 | SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char *fmt, va_list args) | |
120 | { | |
121 | int retc; | |
122 | char auxfmt[LINELEN_MAX]; | |
123 | char buf[LINELEN_MAX]; | |
124 | ||
125 | snprintf(auxfmt, sizeof(auxfmt), "%s\r\n", fmt); | |
126 | vsnprintf(buf, sizeof(buf), auxfmt, args); | |
127 | ||
128 | sr_spew("lps_send_va: \"%s\"", buf); | |
129 | ||
130 | retc = serial_write_blocking(serial, buf, strlen(buf), | |
131 | serial_timeout(serial, strlen(buf))); | |
132 | ||
133 | if (retc < 0) | |
134 | return SR_ERR; | |
135 | ||
136 | return SR_OK; | |
137 | } | |
138 | ||
139 | /** Send command to device. */ | |
140 | SR_PRIV int lps_send_req(struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
141 | { | |
142 | int retc; | |
143 | va_list args; | |
144 | ||
145 | va_start(args, fmt); | |
146 | retc = lps_send_va(serial, fmt, args); | |
147 | va_end(args); | |
148 | ||
149 | return retc; | |
150 | } | |
151 | ||
152 | /** Send command and consume simple OK reply. */ | |
153 | SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
154 | { | |
155 | int retc; | |
156 | va_list args; | |
157 | char buf[LINELEN_MAX]; | |
158 | char *bufptr; | |
159 | int buflen; | |
160 | ||
161 | /* Send command */ | |
162 | va_start(args, fmt); | |
163 | retc = lps_send_va(serial, fmt, args); | |
164 | va_end(args); | |
165 | ||
166 | if (retc != SR_OK) | |
167 | return SR_ERR; | |
168 | ||
169 | /* Read reply */ | |
170 | buf[0] = '\0'; | |
171 | bufptr = buf; | |
172 | buflen = sizeof(buf); | |
173 | retc = lps_read_reply(serial, &bufptr, &buflen); | |
174 | if ((retc == SR_OK) && (buflen == 0)) | |
175 | return SR_OK; | |
176 | ||
177 | return SR_ERR; | |
178 | } | |
179 | ||
180 | /** | |
181 | * Send command and read reply string. | |
182 | * @param reply Pointer to buffer of size LINELEN_MAX. Will be NUL-terminated. | |
183 | */ | |
184 | SR_PRIV int lps_cmd_reply(char *reply, struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
185 | { | |
186 | int retc; | |
187 | va_list args; | |
188 | char buf[LINELEN_MAX]; | |
189 | char *bufptr; | |
190 | int buflen; | |
191 | ||
192 | reply[0] = '\0'; | |
193 | ||
194 | /* Send command */ | |
195 | va_start(args, fmt); | |
196 | retc = lps_send_va(serial, fmt, args); | |
197 | va_end(args); | |
198 | ||
199 | if (retc != SR_OK) | |
200 | return SR_ERR; | |
201 | ||
202 | /* Read reply */ | |
203 | buf[0] = '\0'; | |
204 | bufptr = buf; | |
205 | buflen = sizeof(buf); | |
206 | retc = lps_read_reply(serial, &bufptr, &buflen); | |
207 | if ((retc == SR_OK) && (buflen > 0)) { | |
208 | strcpy(reply, buf); | |
209 | return SR_OK; | |
210 | } | |
211 | ||
212 | return SR_ERR; | |
213 | } | |
214 | ||
215 | /** Process integer value returned by STATUS command. */ | |
216 | SR_PRIV int lps_process_status(struct sr_dev_inst *sdi, int stat) | |
217 | { | |
218 | struct dev_context *devc; | |
219 | int tracking_mode; | |
220 | ||
221 | devc = sdi->priv; | |
222 | ||
223 | sr_spew("Status: %d", stat); | |
224 | devc->channel_status[0].cc_mode = (stat & 0x01) != 0; | |
225 | sr_spew("Channel 1 %s mode", devc->channel_status[0].cc_mode?"CC":"CV"); | |
226 | if (devc->model->num_channels > 1) { | |
227 | devc->channel_status[1].cc_mode = (stat & 0x02) != 0; | |
228 | sr_spew("Channel 2 %s mode", devc->channel_status[1].cc_mode?"CC":"CV"); | |
229 | ||
230 | tracking_mode = (stat & 0x0c) >> 2; | |
231 | switch (tracking_mode) { | |
232 | case 0: devc->tracking_mode = 0; | |
233 | break; | |
234 | case 2: devc->tracking_mode = 1; | |
235 | break; | |
236 | case 3: devc->tracking_mode = 2; | |
237 | break; | |
238 | default: | |
239 | sr_err("Illegal channel tracking mode %d!", tracking_mode); | |
240 | devc->tracking_mode = 0; | |
241 | break; | |
242 | } | |
243 | ||
244 | sr_spew("Channel tracking: %d", devc->tracking_mode); | |
245 | } | |
246 | devc->channel_status[0].output_enabled = devc->channel_status[1].output_enabled = stat&0x040?TRUE:FALSE; | |
247 | sr_spew("Channel 1%s output: %s", devc->model->num_channels > 1?"+2":"", devc->channel_status[0].output_enabled?"ON":"OFF"); | |
248 | if (devc->model->num_channels > 2) { | |
249 | devc->channel_status[2].output_enabled = stat&0x010?TRUE:FALSE; | |
250 | devc->channel_status[2].output_voltage_last = stat&0x020?3.3:5; | |
251 | sr_spew("Channel 3 output: %s, U=%02f V, overload=%d", | |
252 | devc->channel_status[2].output_enabled?"ON":"OFF", | |
253 | devc->channel_status[2].output_voltage_last, | |
254 | stat&0x080?1:0); | |
255 | } | |
256 | sr_spew("Fan=%d, beep=%d, CC output compensated=%d", stat&0x0100?1:0, stat&0x0200?1:0, stat&0x0400?1:0); | |
257 | ||
258 | return SR_OK; | |
259 | } | |
260 | ||
261 | /** Send STATUS commend and process status string. */ | |
262 | SR_PRIV int lps_query_status(struct sr_dev_inst *sdi) | |
263 | { | |
264 | char buf[LINELEN_MAX]; | |
265 | int stat, ret; | |
266 | struct dev_context *devc; | |
267 | ||
268 | devc = sdi->priv; | |
269 | ||
270 | devc->req_sent_at = g_get_real_time(); | |
271 | ||
272 | if ((ret = lps_cmd_reply(buf, sdi->conn, "STATUS")) < 0) { | |
273 | sr_err("%s: Failed to read status: %s.", __func__, | |
274 | sr_strerror(ret)); | |
275 | return SR_ERR; | |
276 | } | |
277 | ||
278 | if (sr_atoi(buf, &stat) != SR_OK) | |
279 | return SR_ERR; | |
280 | ||
281 | return lps_process_status(sdi, stat); | |
282 | } | |
283 | ||
284 | static gint64 calc_timeout_ms(gint64 start_us) | |
285 | { | |
286 | gint64 result = REQ_TIMEOUT_MS - ((g_get_real_time() - start_us) / 1000); | |
287 | ||
288 | if (result < 0) | |
289 | return 0; | |
290 | ||
291 | return result; | |
292 | } | |
293 | ||
294 | /** | |
295 | * Read message into buf until "OK" received. | |
296 | * | |
297 | * @retval SR_OK Msg received; buf and buflen contain result, if any except OK. | |
298 | * @retval SR_ERR Error, including timeout. | |
299 | */ | |
300 | SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen) | |
301 | { | |
302 | int retries; | |
303 | char buf2[LINELEN_MAX]; | |
304 | char *buf2ptr; | |
305 | int buf2len; | |
306 | gint64 timeout_start; | |
307 | ||
308 | *buf[0] = '\0'; | |
309 | ||
310 | /* Read one line. It is either a data message or "OK". */ | |
311 | timeout_start = g_get_real_time(); | |
312 | buf2len = *buflen; | |
313 | /* Up to 5 tries because serial_readline() will consume only one CR or LF per | |
314 | * call, but device sends up to 4 in a row. */ | |
315 | for (retries = 0; retries < 5; retries++) { | |
316 | *buflen = buf2len; | |
317 | if (serial_readline(serial, buf, buflen, calc_timeout_ms(timeout_start)) != SR_OK) | |
318 | return SR_ERR; | |
319 | if (!strcmp(*buf, "OK")) { /* We got an OK! */ | |
320 | *buf[0] = '\0'; | |
321 | *buflen = 0; | |
322 | return SR_OK; | |
323 | } | |
324 | if (*buflen > 0) /* We got a msg! */ | |
325 | break; | |
326 | } | |
327 | ||
328 | /* A data msg is in buf (possibly ERROR), need to consume "OK". */ | |
329 | buf2[0] = '\0'; | |
330 | buf2ptr = buf2; | |
331 | for (retries = 0; retries < 5; retries++) { | |
332 | buf2len = sizeof(buf2); | |
333 | if (serial_readline(serial, &buf2ptr, &buf2len, calc_timeout_ms(timeout_start)) != SR_OK) | |
334 | return SR_ERR; | |
335 | ||
336 | if (!strcmp(buf2ptr, "OK")) { /* We got an OK! */ | |
337 | if (!strcmp(*buf, "ERROR")) { /* OK came after msg ERROR! */ | |
338 | sr_spew("ERROR found!"); | |
339 | *buf[0] = '\0'; | |
340 | *buflen = 0; | |
341 | return SR_ERR; | |
342 | } | |
343 | return SR_OK; | |
344 | } | |
345 | } | |
346 | ||
347 | return SR_ERR; /* Timeout! */ | |
348 | } | |
349 | ||
350 | /** Scan for LPS-300 series device. */ | |
351 | static GSList *do_scan(lps_modelid modelid, struct sr_dev_driver *drv, GSList *options) | |
352 | { | |
353 | struct sr_dev_inst *sdi; | |
354 | struct dev_context *devc; | |
355 | struct sr_serial_dev_inst *serial; | |
356 | struct sr_channel *ch; | |
357 | struct sr_channel_group *cg; | |
358 | const char *conn, *serialcomm; | |
359 | int cnt, ret; | |
360 | gchar buf[LINELEN_MAX]; | |
361 | gchar channel[10]; | |
362 | char *verstr; | |
363 | ||
364 | sdi = NULL; | |
365 | devc = NULL; | |
366 | conn = serialcomm = NULL; | |
367 | ||
368 | /* Process and check options. */ | |
369 | if (sr_serial_extract_options(options, &conn, &serialcomm) != SR_OK) | |
370 | return NULL; | |
371 | if (!serialcomm) | |
372 | serialcomm = SERIALCOMM; | |
373 | ||
374 | /* Init serial port. */ | |
375 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
376 | ||
377 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
378 | goto exit_err; | |
379 | ||
380 | /* Query and verify model string. */ | |
381 | serial_flush(serial); | |
382 | if (lps_cmd_reply(buf, serial, "MODEL") != SR_OK) | |
383 | return NULL; | |
384 | ||
385 | /* Check model string. */ | |
386 | if (strncmp(buf, "LPS-", 4)) { | |
387 | sr_spew("Unknown model code \"%s\"!", buf); | |
388 | return NULL; | |
389 | } | |
390 | ||
391 | /* Bug in device FW 1.17, model number is empty, so this can't work with this FW! */ | |
392 | if (modelid == LPS_UNKNOWN) { | |
393 | g_strstrip(buf); | |
394 | for (cnt = LPS_301; cnt <= LPS_305; cnt++) { | |
395 | if (!strcmp(buf, models[cnt].modelstr)) { | |
396 | modelid = cnt; | |
397 | break; | |
398 | } | |
399 | } | |
400 | if (modelid == LPS_UNKNOWN) { | |
401 | sr_err("Unable to detect model from model string '%s'!", buf); | |
402 | return NULL; | |
403 | } | |
404 | } | |
405 | ||
406 | /* Query version */ | |
407 | verstr = NULL; | |
408 | if ((ret = lps_cmd_reply(buf, serial, "VERSION")) == SR_OK) { | |
409 | if (strncmp(buf, "Ver-", 4)) { | |
410 | sr_spew("Version string %s not recognized.", buf); | |
411 | goto exit_err; | |
412 | } | |
413 | ||
414 | g_strstrip(buf); | |
415 | verstr = buf + 4; | |
416 | } | |
417 | else /* Bug in device FW 1.17: Querying version string fails while output is active. | |
418 | Therefore just print an error message, but do not exit with error. */ | |
419 | sr_err("Failed to query for hardware version: %s.", | |
420 | sr_strerror(ret)); | |
421 | ||
422 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
423 | sdi->status = SR_ST_INACTIVE; | |
424 | sdi->vendor = g_strdup("Motech"); | |
425 | sdi->model = g_strdup(models[modelid].modelstr); | |
426 | sdi->version = g_strdup(verstr); | |
427 | sdi->inst_type = SR_INST_SERIAL; | |
428 | sdi->conn = serial; | |
429 | ||
430 | devc = g_malloc0(sizeof(struct dev_context)); | |
431 | sr_sw_limits_init(&devc->limits); | |
432 | devc->model = &models[modelid]; | |
433 | ||
434 | sdi->priv = devc; | |
435 | ||
436 | /* Setup channels and channel groups. */ | |
437 | for (cnt = 0; cnt < models[modelid].num_channels; cnt++) { | |
438 | snprintf(channel, sizeof(channel), "CH%d", cnt + 1); | |
439 | ch = sr_channel_new(sdi, cnt, SR_CHANNEL_ANALOG, TRUE, channel); | |
440 | ||
441 | devc->channel_status[cnt].info = g_slist_append(NULL, ch); | |
442 | ||
443 | cg = g_malloc(sizeof(struct sr_channel_group)); | |
444 | snprintf(channel, sizeof(channel), "CG%d", cnt+1); | |
445 | cg->name = g_strdup(channel); | |
446 | cg->priv = NULL; | |
447 | cg->channels = g_slist_append(NULL, ch); | |
448 | ||
449 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); | |
450 | } | |
451 | ||
452 | /* Query status */ | |
453 | if (lps_query_status(sdi) != SR_OK) | |
454 | goto exit_err; | |
455 | ||
456 | serial_close(serial); | |
457 | ||
458 | return std_scan_complete(drv, g_slist_append(NULL, sdi)); | |
459 | ||
460 | exit_err: | |
461 | sr_info("%s: Error!", __func__); | |
462 | ||
463 | if (serial) | |
464 | serial_close(serial); | |
465 | sr_serial_dev_inst_free(serial); | |
466 | g_free(devc); | |
467 | sr_dev_inst_free(sdi); | |
468 | ||
469 | return NULL; | |
470 | } | |
471 | ||
472 | /** Scan for LPS-301 device. */ | |
473 | static GSList *scan_lps301(struct sr_dev_driver *di, GSList *options) | |
474 | { | |
475 | return do_scan(LPS_301, di, options); | |
476 | } | |
477 | ||
478 | static void clear_helper(struct dev_context *devc) | |
479 | { | |
480 | int ch_idx; | |
481 | ||
482 | /* Free channel_status.info (list only, data owned by sdi). */ | |
483 | for (ch_idx = 0; ch_idx < devc->model->num_channels; ch_idx++) | |
484 | g_slist_free(devc->channel_status[ch_idx].info); | |
485 | } | |
486 | ||
487 | static int dev_clear(const struct sr_dev_driver *di) | |
488 | { | |
489 | return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); | |
490 | } | |
491 | ||
492 | static int config_get(uint32_t key, GVariant **data, | |
493 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
494 | { | |
495 | struct dev_context *devc; | |
496 | struct sr_channel *ch; | |
497 | int ch_idx; | |
498 | ||
499 | if (!sdi) | |
500 | return SR_ERR_ARG; | |
501 | ||
502 | devc = sdi->priv; | |
503 | ||
504 | if (!cg) { | |
505 | switch (key) { | |
506 | case SR_CONF_LIMIT_SAMPLES: | |
507 | case SR_CONF_LIMIT_MSEC: | |
508 | return sr_sw_limits_config_get(&devc->limits, key, data); | |
509 | case SR_CONF_CHANNEL_CONFIG: | |
510 | *data = g_variant_new_string(channel_modes[devc->tracking_mode]); | |
511 | break; | |
512 | default: | |
513 | return SR_ERR_NA; | |
514 | } | |
515 | } else { | |
516 | /* We only ever have one channel per channel group in this driver. */ | |
517 | ch = cg->channels->data; | |
518 | ch_idx = ch->index; | |
519 | ||
520 | switch (key) { | |
521 | case SR_CONF_VOLTAGE: | |
522 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_last); | |
523 | break; | |
524 | case SR_CONF_VOLTAGE_TARGET: | |
525 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_max); | |
526 | break; | |
527 | case SR_CONF_CURRENT: | |
528 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_last); | |
529 | break; | |
530 | case SR_CONF_CURRENT_LIMIT: | |
531 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_max); | |
532 | break; | |
533 | case SR_CONF_ENABLED: | |
534 | *data = g_variant_new_boolean(devc->channel_status[ch_idx].output_enabled); | |
535 | break; | |
536 | default: | |
537 | return SR_ERR_NA; | |
538 | } | |
539 | } | |
540 | ||
541 | return SR_OK; | |
542 | } | |
543 | ||
544 | static int config_set(uint32_t key, GVariant *data, | |
545 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
546 | { | |
547 | struct dev_context *devc; | |
548 | struct sr_channel *ch; | |
549 | gdouble dval; | |
550 | int ch_idx; | |
551 | gboolean bval; | |
552 | int idx; | |
553 | ||
554 | devc = sdi->priv; | |
555 | ||
556 | /* Cannot change settings while acquisition active, would cause a mess with commands. | |
557 | * Changing this would be possible, but tricky. */ | |
558 | if (devc->acq_running) | |
559 | return SR_ERR_NA; | |
560 | ||
561 | if (!cg) { | |
562 | switch (key) { | |
563 | case SR_CONF_LIMIT_MSEC: | |
564 | case SR_CONF_LIMIT_SAMPLES: | |
565 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
566 | case SR_CONF_CHANNEL_CONFIG: | |
567 | if ((idx = std_str_idx(data, ARRAY_AND_SIZE(channel_modes))) < 0) | |
568 | return SR_ERR_ARG; | |
569 | if (devc->model->modelid <= LPS_303 && idx != 0) | |
570 | break; /* Only first setting possible for smaller models. */ | |
571 | if (devc->tracking_mode == idx) | |
572 | break; /* Nothing to do! */ | |
573 | devc->tracking_mode = idx; | |
574 | if (devc->model->modelid >= LPS_304) /* No use to set anything in the smaller models. */ | |
575 | return lps_cmd_ok(sdi->conn, "TRACK%1d", devc->tracking_mode); | |
576 | break; | |
577 | default: | |
578 | return SR_ERR_NA; | |
579 | } | |
580 | } else { | |
581 | /* We only ever have one channel per channel group in this driver. */ | |
582 | ch = cg->channels->data; | |
583 | ch_idx = ch->index; | |
584 | ||
585 | switch (key) { | |
586 | case SR_CONF_VOLTAGE_TARGET: | |
587 | dval = g_variant_get_double(data); | |
588 | if (dval < 0 || dval > devc->model->channels[ch_idx].voltage[1]) | |
589 | return SR_ERR_ARG; | |
590 | if (ch_idx == 2) { | |
591 | if (devc->model->modelid < LPS_304) | |
592 | return SR_ERR_ARG; | |
593 | ||
594 | if (fabs(dval - 5.000) <= 0.001) | |
595 | dval = 5.0; | |
596 | else if ((devc->model->modelid >= LPS_305) && (fabs(dval - 3.300) <= 0.001)) | |
597 | dval = 3.3; | |
598 | else return SR_ERR_ARG; | |
599 | } | |
600 | ||
601 | devc->channel_status[ch_idx].output_voltage_max = dval; | |
602 | if (ch_idx == 2) | |
603 | return lps_cmd_ok(sdi->conn, "VDD%1.0f", trunc(dval)); | |
604 | else | |
605 | return lps_cmd_ok(sdi->conn, "VSET%d %05.3f", ch_idx+1, dval); | |
606 | break; | |
607 | case SR_CONF_CURRENT_LIMIT: | |
608 | dval = g_variant_get_double(data); | |
609 | if (dval < 0 || dval > devc->model->channels[ch_idx].current[1]) | |
610 | return SR_ERR_ARG; | |
611 | if (ch_idx == 2) /* No current setting for CH3. */ | |
612 | return SR_ERR_NA; | |
613 | devc->channel_status[ch_idx].output_current_max = dval; | |
614 | return lps_cmd_ok(sdi->conn, "ISET%d %05.4f", ch_idx+1, dval); | |
615 | case SR_CONF_ENABLED: | |
616 | bval = g_variant_get_boolean(data); | |
617 | if (bval == devc->channel_status[ch_idx].output_enabled) /* Nothing to do. */ | |
618 | break; | |
619 | devc->channel_status[ch_idx].output_enabled = bval; | |
620 | if (ch_idx != 2) { /* Channels 1,2 can be set only together. */ | |
621 | devc->channel_status[ch_idx^1].output_enabled = bval; | |
622 | return lps_cmd_ok(sdi->conn, "OUT%1d", (int)bval); | |
623 | } else { /* Channel 3: No command to disable output, set voltage to 0 instead. */ | |
624 | if (bval) | |
625 | return lps_cmd_ok(sdi->conn, "VDD%1.0f", devc->channel_status[ch_idx].output_voltage_max); | |
626 | else | |
627 | return lps_cmd_ok(sdi->conn, "VDD0"); | |
628 | } | |
629 | break; | |
630 | default: | |
631 | return SR_ERR_NA; | |
632 | } | |
633 | } | |
634 | ||
635 | return SR_OK; | |
636 | } | |
637 | ||
638 | static int config_list(uint32_t key, GVariant **data, | |
639 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
640 | { | |
641 | struct dev_context *devc; | |
642 | struct sr_channel *ch; | |
643 | int ch_idx; | |
644 | ||
645 | devc = (sdi) ? sdi->priv : NULL; | |
646 | ||
647 | if (!cg) { | |
648 | switch (key) { | |
649 | case SR_CONF_SCAN_OPTIONS: | |
650 | case SR_CONF_DEVICE_OPTIONS: | |
651 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
652 | case SR_CONF_CHANNEL_CONFIG: | |
653 | if (!devc || !devc->model) | |
654 | return SR_ERR_ARG; | |
655 | if (devc->model->modelid <= LPS_303) { | |
656 | /* The 1-channel models. */ | |
657 | *data = g_variant_new_strv(channel_modes, 1); | |
658 | } else { | |
659 | /* The other models support all modes. */ | |
660 | *data = g_variant_new_strv(ARRAY_AND_SIZE(channel_modes)); | |
661 | } | |
662 | return SR_OK; | |
663 | default: | |
664 | return SR_ERR_NA; | |
665 | } | |
666 | } | |
667 | ||
668 | /* We only ever have one channel per channel group in this driver. */ | |
669 | ch = cg->channels->data; | |
670 | ch_idx = ch->index; | |
671 | ||
672 | switch (key) { | |
673 | case SR_CONF_DEVICE_OPTIONS: | |
674 | if ((ch_idx == 0) || (ch_idx == 1)) /* CH1, CH2 */ | |
675 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_ch12)); | |
676 | else /* Must be CH3 */ | |
677 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_ch3)); | |
678 | break; | |
679 | case SR_CONF_VOLTAGE_TARGET: | |
680 | if (!devc || !devc->model) | |
681 | return SR_ERR_ARG; | |
682 | *data = std_gvar_min_max_step_array(devc->model->channels[ch_idx].voltage); | |
683 | break; | |
684 | case SR_CONF_CURRENT_LIMIT: | |
685 | if (!devc || !devc->model) | |
686 | return SR_ERR_ARG; | |
687 | *data = std_gvar_min_max_step_array(devc->model->channels[ch_idx].current); | |
688 | break; | |
689 | default: | |
690 | return SR_ERR_NA; | |
691 | } | |
692 | ||
693 | return SR_OK; | |
694 | } | |
695 | ||
696 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
697 | { | |
698 | struct dev_context *devc; | |
699 | struct sr_serial_dev_inst *serial; | |
700 | ||
701 | devc = sdi->priv; | |
702 | ||
703 | devc->acq_running = TRUE; | |
704 | ||
705 | serial = sdi->conn; | |
706 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
707 | motech_lps_30x_receive_data, (void *)sdi); | |
708 | std_session_send_df_header(sdi); | |
709 | ||
710 | sr_sw_limits_acquisition_start(&devc->limits); | |
711 | ||
712 | devc->acq_req = AQ_NONE; | |
713 | /* Do not start polling device here, the read function will do it in 50 ms. */ | |
714 | ||
715 | return SR_OK; | |
716 | } | |
717 | ||
718 | static struct sr_dev_driver motech_lps_301_driver_info = { | |
719 | .name = "motech-lps-301", | |
720 | .longname = "Motech LPS-301", | |
721 | .api_version = 1, | |
722 | .init = std_init, | |
723 | .cleanup = std_cleanup, | |
724 | .scan = scan_lps301, | |
725 | .dev_list = std_dev_list, | |
726 | .dev_clear = dev_clear, | |
727 | .config_get = config_get, | |
728 | .config_set = config_set, | |
729 | .config_list = config_list, | |
730 | .dev_open = std_serial_dev_open, | |
731 | .dev_close = std_serial_dev_close, | |
732 | .dev_acquisition_start = dev_acquisition_start, | |
733 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
734 | .context = NULL, | |
735 | }; | |
736 | SR_REGISTER_DEV_DRIVER(motech_lps_301_driver_info); |