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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 | #define VENDOR_MOTECH "Motech" | |
36 | ||
37 | static const uint32_t scanopts[] = { | |
38 | SR_CONF_CONN, | |
39 | SR_CONF_SERIALCOMM, | |
40 | }; | |
41 | ||
42 | static const uint32_t drvopts[] = { | |
43 | SR_CONF_POWER_SUPPLY, | |
44 | }; | |
45 | ||
46 | static const uint32_t devopts[] = { | |
47 | SR_CONF_CONTINUOUS, | |
48 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
49 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
50 | SR_CONF_CHANNEL_CONFIG | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
51 | }; | |
52 | ||
53 | /** Hardware capabilities channel 1, 2. */ | |
54 | static const uint32_t devopts_cg_ch12[] = { | |
55 | SR_CONF_VOLTAGE | SR_CONF_GET, | |
56 | SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
57 | SR_CONF_CURRENT | SR_CONF_GET, | |
58 | SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
59 | SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET, | |
60 | }; | |
61 | ||
62 | /** Hardware capabilities channel 3 (LPS-304/305 only). */ | |
63 | static const uint32_t devopts_cg_ch3[] = { | |
64 | SR_CONF_VOLTAGE | SR_CONF_GET, | |
65 | SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET, | |
66 | }; | |
67 | ||
68 | static const char *channel_modes[] = { | |
69 | "Independent", | |
70 | "Track1", | |
71 | "Track2", | |
72 | }; | |
73 | ||
74 | static const struct lps_modelspec models[] = { | |
75 | { LPS_UNKNOWN, "Dummy", 0, | |
76 | { | |
77 | ||
78 | } | |
79 | }, | |
80 | { LPS_301, "LPS-301", 1, | |
81 | { | |
82 | /* Channel 1 */ | |
83 | { { 0, 32, 0.01 }, { 0.005, 2, 0.001 } }, | |
84 | }, | |
85 | }, | |
86 | { LPS_302, "LPS-302", 1, | |
87 | { | |
88 | /* Channel 1 */ | |
89 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
90 | }, | |
91 | }, | |
92 | { LPS_303, "LPS-303", 1, | |
93 | { | |
94 | /* Channel 1 */ | |
95 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
96 | }, | |
97 | }, | |
98 | { LPS_304, "LPS-304", 3, | |
99 | { | |
100 | /* Channel 1 */ | |
101 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
102 | /* Channel 2 */ | |
103 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
104 | /* Channel 3 */ | |
105 | { { 5, 5, 0.0 }, { 0.005, 3, 0.001 } }, | |
106 | }, | |
107 | }, | |
108 | { LPS_305, "LPS-305", 3, | |
109 | { | |
110 | /* Channel 1 */ | |
111 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
112 | /* Channel 2 */ | |
113 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
114 | /* Channel 3 */ | |
115 | { { 3.3, 5, 1.7 }, { 0.005, 3, 0.001 } }, | |
116 | }, | |
117 | }, | |
118 | }; | |
119 | ||
120 | /** Send command to device with va_list. */ | |
121 | SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char *fmt, va_list args) | |
122 | { | |
123 | int retc; | |
124 | char auxfmt[LINELEN_MAX]; | |
125 | char buf[LINELEN_MAX]; | |
126 | ||
127 | snprintf(auxfmt, sizeof(auxfmt), "%s\r\n", fmt); | |
128 | vsnprintf(buf, sizeof(buf), auxfmt, args); | |
129 | ||
130 | sr_spew("lps_send_va: \"%s\"", buf); | |
131 | ||
132 | retc = serial_write_blocking(serial, buf, strlen(buf), | |
133 | serial_timeout(serial, strlen(buf))); | |
134 | ||
135 | if (retc < 0) | |
136 | return SR_ERR; | |
137 | ||
138 | return SR_OK; | |
139 | } | |
140 | ||
141 | /** Send command to device. */ | |
142 | SR_PRIV int lps_send_req(struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
143 | { | |
144 | int retc; | |
145 | va_list args; | |
146 | ||
147 | va_start(args, fmt); | |
148 | retc = lps_send_va(serial, fmt, args); | |
149 | va_end(args); | |
150 | ||
151 | return retc; | |
152 | } | |
153 | ||
154 | /** Send command and consume simple OK reply. */ | |
155 | SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
156 | { | |
157 | int retc; | |
158 | va_list args; | |
159 | char buf[LINELEN_MAX]; | |
160 | char *bufptr; | |
161 | int buflen; | |
162 | ||
163 | /* Send command */ | |
164 | va_start(args, fmt); | |
165 | retc = lps_send_va(serial, fmt, args); | |
166 | va_end(args); | |
167 | ||
168 | if (retc != SR_OK) | |
169 | return SR_ERR; | |
170 | ||
171 | /* Read reply */ | |
172 | buf[0] = '\0'; | |
173 | bufptr = buf; | |
174 | buflen = sizeof(buf); | |
175 | retc = lps_read_reply(serial, &bufptr, &buflen); | |
176 | if ((retc == SR_OK) && (buflen == 0)) | |
177 | return SR_OK; | |
178 | ||
179 | return SR_ERR; | |
180 | } | |
181 | ||
182 | /** | |
183 | * Send command and read reply string. | |
184 | * @param reply Pointer to buffer of size LINELEN_MAX. Will be NUL-terminated. | |
185 | */ | |
186 | SR_PRIV int lps_cmd_reply(char *reply, struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
187 | { | |
188 | int retc; | |
189 | va_list args; | |
190 | char buf[LINELEN_MAX]; | |
191 | char *bufptr; | |
192 | int buflen; | |
193 | ||
194 | reply[0] = '\0'; | |
195 | ||
196 | /* Send command */ | |
197 | va_start(args, fmt); | |
198 | retc = lps_send_va(serial, fmt, args); | |
199 | va_end(args); | |
200 | ||
201 | if (retc != SR_OK) | |
202 | return SR_ERR; | |
203 | ||
204 | /* Read reply */ | |
205 | buf[0] = '\0'; | |
206 | bufptr = buf; | |
207 | buflen = sizeof(buf); | |
208 | retc = lps_read_reply(serial, &bufptr, &buflen); | |
209 | if ((retc == SR_OK) && (buflen > 0)) { | |
210 | strcpy(reply, buf); | |
211 | return SR_OK; | |
212 | } | |
213 | ||
214 | return SR_ERR; | |
215 | } | |
216 | ||
217 | /** Process integer value returned by STATUS command. */ | |
218 | SR_PRIV int lps_process_status(struct sr_dev_inst *sdi, int stat) | |
219 | { | |
220 | struct dev_context *devc; | |
221 | int tracking_mode; | |
222 | ||
223 | devc = sdi->priv; | |
224 | ||
225 | sr_spew("Status: %d", stat); | |
226 | devc->channel_status[0].cc_mode = (stat & 0x01) != 0; | |
227 | sr_spew("Channel 1 %s mode", devc->channel_status[0].cc_mode?"CC":"CV"); | |
228 | if (devc->model->num_channels > 1) { | |
229 | devc->channel_status[1].cc_mode = (stat & 0x02) != 0; | |
230 | sr_spew("Channel 2 %s mode", devc->channel_status[1].cc_mode?"CC":"CV"); | |
231 | ||
232 | tracking_mode = (stat & 0x0c) >> 2; | |
233 | switch (tracking_mode) { | |
234 | case 0: devc->tracking_mode = 0; | |
235 | break; | |
236 | case 2: devc->tracking_mode = 1; | |
237 | break; | |
238 | case 3: devc->tracking_mode = 2; | |
239 | break; | |
240 | default: | |
241 | sr_err("Illegal channel tracking mode %d!", tracking_mode); | |
242 | devc->tracking_mode = 0; | |
243 | break; | |
244 | } | |
245 | ||
246 | sr_spew("Channel tracking: %d", devc->tracking_mode); | |
247 | } | |
248 | devc->channel_status[0].output_enabled = devc->channel_status[1].output_enabled = stat&0x040?TRUE:FALSE; | |
249 | sr_spew("Channel 1%s output: %s", devc->model->num_channels > 1?"+2":"", devc->channel_status[0].output_enabled?"ON":"OFF"); | |
250 | if (devc->model->num_channels > 2) { | |
251 | devc->channel_status[2].output_enabled = stat&0x010?TRUE:FALSE; | |
252 | devc->channel_status[2].output_voltage_last = stat&0x020?3.3:5; | |
253 | sr_spew("Channel 3 output: %s, U=%02f V, overload=%d", | |
254 | devc->channel_status[2].output_enabled?"ON":"OFF", | |
255 | devc->channel_status[2].output_voltage_last, | |
256 | stat&0x080?1:0); | |
257 | } | |
258 | sr_spew("Fan=%d, beep=%d, CC output compensated=%d", stat&0x0100?1:0, stat&0x0200?1:0, stat&0x0400?1:0); | |
259 | ||
260 | return SR_OK; | |
261 | } | |
262 | ||
263 | /** Send STATUS commend and process status string. */ | |
264 | SR_PRIV int lps_query_status(struct sr_dev_inst *sdi) | |
265 | { | |
266 | char buf[LINELEN_MAX]; | |
267 | int stat, ret; | |
268 | struct dev_context *devc; | |
269 | ||
270 | devc = sdi->priv; | |
271 | ||
272 | devc->req_sent_at = g_get_real_time(); | |
273 | ||
274 | if ((ret = lps_cmd_reply(buf, sdi->conn, "STATUS")) < 0) { | |
275 | sr_err("%s: Failed to read status: %s.", __func__, | |
276 | sr_strerror(ret)); | |
277 | return SR_ERR; | |
278 | } | |
279 | ||
280 | if (sr_atoi(buf, &stat) != SR_OK) | |
281 | return SR_ERR; | |
282 | ||
283 | return lps_process_status(sdi, stat); | |
284 | } | |
285 | ||
286 | static gint64 calc_timeout_ms(gint64 start_us) | |
287 | { | |
288 | gint64 result = REQ_TIMEOUT_MS - ((g_get_real_time() - start_us) / 1000); | |
289 | ||
290 | if (result < 0) | |
291 | return 0; | |
292 | ||
293 | return result; | |
294 | } | |
295 | ||
296 | /** | |
297 | * Read message into buf until "OK" received. | |
298 | * | |
299 | * @retval SR_OK Msg received; buf and buflen contain result, if any except OK. | |
300 | * @retval SR_ERR Error, including timeout. | |
301 | */ | |
302 | SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen) | |
303 | { | |
304 | int retries; | |
305 | char buf2[LINELEN_MAX]; | |
306 | char *buf2ptr; | |
307 | int buf2len; | |
308 | gint64 timeout_start; | |
309 | ||
310 | *buf[0] = '\0'; | |
311 | ||
312 | /* Read one line. It is either a data message or "OK". */ | |
313 | timeout_start = g_get_real_time(); | |
314 | buf2len = *buflen; | |
315 | /* Up to 5 tries because serial_readline() will consume only one CR or LF per | |
316 | * call, but device sends up to 4 in a row. */ | |
317 | for (retries = 0; retries < 5; retries++) { | |
318 | *buflen = buf2len; | |
319 | if (serial_readline(serial, buf, buflen, calc_timeout_ms(timeout_start)) != SR_OK) | |
320 | return SR_ERR; | |
321 | if (!strcmp(*buf, "OK")) { /* We got an OK! */ | |
322 | *buf[0] = '\0'; | |
323 | *buflen = 0; | |
324 | return SR_OK; | |
325 | } | |
326 | if (*buflen > 0) /* We got a msg! */ | |
327 | break; | |
328 | } | |
329 | ||
330 | /* A data msg is in buf (possibly ERROR), need to consume "OK". */ | |
331 | buf2[0] = '\0'; | |
332 | buf2ptr = buf2; | |
333 | for (retries = 0; retries < 5; retries++) { | |
334 | buf2len = sizeof(buf2); | |
335 | if (serial_readline(serial, &buf2ptr, &buf2len, calc_timeout_ms(timeout_start)) != SR_OK) | |
336 | return SR_ERR; | |
337 | ||
338 | if (!strcmp(buf2ptr, "OK")) { /* We got an OK! */ | |
339 | if (!strcmp(*buf, "ERROR")) { /* OK came after msg ERROR! */ | |
340 | sr_spew("ERROR found!"); | |
341 | *buf[0] = '\0'; | |
342 | *buflen = 0; | |
343 | return SR_ERR; | |
344 | } | |
345 | return SR_OK; | |
346 | } | |
347 | } | |
348 | ||
349 | return SR_ERR; /* Timeout! */ | |
350 | } | |
351 | ||
352 | /** Scan for LPS-300 series device. */ | |
353 | static GSList *do_scan(lps_modelid modelid, struct sr_dev_driver *drv, GSList *options) | |
354 | { | |
355 | struct sr_dev_inst *sdi; | |
356 | struct dev_context *devc; | |
357 | struct sr_serial_dev_inst *serial; | |
358 | struct sr_channel *ch; | |
359 | struct sr_channel_group *cg; | |
360 | const char *conn, *serialcomm; | |
361 | int cnt, ret; | |
362 | gchar buf[LINELEN_MAX]; | |
363 | gchar channel[10]; | |
364 | char *verstr; | |
365 | ||
366 | sdi = NULL; | |
367 | devc = NULL; | |
368 | conn = serialcomm = NULL; | |
369 | ||
370 | /* Process and check options. */ | |
371 | if (sr_serial_extract_options(options, &conn, &serialcomm) != SR_OK) | |
372 | return NULL; | |
373 | if (!serialcomm) | |
374 | serialcomm = SERIALCOMM; | |
375 | ||
376 | /* Init serial port. */ | |
377 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
378 | ||
379 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
380 | goto exit_err; | |
381 | ||
382 | /* Query and verify model string. */ | |
383 | serial_flush(serial); | |
384 | if (lps_cmd_reply(buf, serial, "MODEL") != SR_OK) | |
385 | return NULL; | |
386 | ||
387 | /* Check model string. */ | |
388 | if (strncmp(buf, "LPS-", 4)) { | |
389 | sr_spew("Unknown model code \"%s\"!", buf); | |
390 | return NULL; | |
391 | } | |
392 | ||
393 | /* Bug in device FW 1.17, model number is empty, so this can't work with this FW! */ | |
394 | if (modelid == LPS_UNKNOWN) { | |
395 | g_strstrip(buf); | |
396 | for (cnt = LPS_301; cnt <= LPS_305; cnt++) { | |
397 | if (!strcmp(buf, models[cnt].modelstr)) { | |
398 | modelid = cnt; | |
399 | break; | |
400 | } | |
401 | } | |
402 | if (modelid == LPS_UNKNOWN) { | |
403 | sr_err("Unable to detect model from model string '%s'!", buf); | |
404 | return NULL; | |
405 | } | |
406 | } | |
407 | ||
408 | /* Query version */ | |
409 | verstr = NULL; | |
410 | if ((ret = lps_cmd_reply(buf, serial, "VERSION")) == SR_OK) { | |
411 | if (strncmp(buf, "Ver-", 4)) { | |
412 | sr_spew("Version string %s not recognized.", buf); | |
413 | goto exit_err; | |
414 | } | |
415 | ||
416 | g_strstrip(buf); | |
417 | verstr = buf + 4; | |
418 | } | |
419 | else /* Bug in device FW 1.17: Querying version string fails while output is active. | |
420 | Therefore just print an error message, but do not exit with error. */ | |
421 | sr_err("Failed to query for hardware version: %s.", | |
422 | sr_strerror(ret)); | |
423 | ||
424 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
425 | sdi->status = SR_ST_INACTIVE; | |
426 | sdi->vendor = g_strdup(VENDOR_MOTECH); | |
427 | sdi->model = g_strdup(models[modelid].modelstr); | |
428 | sdi->version = g_strdup(verstr); | |
429 | sdi->inst_type = SR_INST_SERIAL; | |
430 | sdi->conn = serial; | |
431 | ||
432 | devc = g_malloc0(sizeof(struct dev_context)); | |
433 | sr_sw_limits_init(&devc->limits); | |
434 | devc->model = &models[modelid]; | |
435 | ||
436 | sdi->priv = devc; | |
437 | ||
438 | /* Setup channels and channel groups. */ | |
439 | for (cnt = 0; cnt < models[modelid].num_channels; cnt++) { | |
440 | snprintf(channel, sizeof(channel), "CH%d", cnt + 1); | |
441 | ch = sr_channel_new(sdi, cnt, SR_CHANNEL_ANALOG, TRUE, channel); | |
442 | ||
443 | devc->channel_status[cnt].info = g_slist_append(NULL, ch); | |
444 | ||
445 | cg = g_malloc(sizeof(struct sr_channel_group)); | |
446 | snprintf(channel, sizeof(channel), "CG%d", cnt+1); | |
447 | cg->name = g_strdup(channel); | |
448 | cg->priv = NULL; | |
449 | cg->channels = g_slist_append(NULL, ch); | |
450 | ||
451 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); | |
452 | } | |
453 | ||
454 | /* Query status */ | |
455 | if (lps_query_status(sdi) != SR_OK) | |
456 | goto exit_err; | |
457 | ||
458 | serial_close(serial); | |
459 | ||
460 | return std_scan_complete(drv, g_slist_append(NULL, sdi)); | |
461 | ||
462 | exit_err: | |
463 | sr_info("%s: Error!", __func__); | |
464 | ||
465 | if (serial) | |
466 | serial_close(serial); | |
467 | sr_serial_dev_inst_free(serial); | |
468 | g_free(devc); | |
469 | sr_dev_inst_free(sdi); | |
470 | ||
471 | return NULL; | |
472 | } | |
473 | ||
474 | /** Scan for LPS-301 device. */ | |
475 | static GSList *scan_lps301(struct sr_dev_driver *di, GSList *options) | |
476 | { | |
477 | return do_scan(LPS_301, di, options); | |
478 | } | |
479 | ||
480 | static void clear_helper(struct dev_context *devc) | |
481 | { | |
482 | int ch_idx; | |
483 | ||
484 | /* Free channel_status.info (list only, data owned by sdi). */ | |
485 | for (ch_idx = 0; ch_idx < devc->model->num_channels; ch_idx++) | |
486 | g_slist_free(devc->channel_status[ch_idx].info); | |
487 | } | |
488 | ||
489 | static int dev_clear(const struct sr_dev_driver *di) | |
490 | { | |
491 | return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); | |
492 | } | |
493 | ||
494 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
495 | const struct sr_channel_group *cg) | |
496 | { | |
497 | struct dev_context *devc; | |
498 | struct sr_channel *ch; | |
499 | int ch_idx; | |
500 | ||
501 | if (!sdi) | |
502 | return SR_ERR_ARG; | |
503 | ||
504 | devc = sdi->priv; | |
505 | ||
506 | if (!cg) { | |
507 | switch (key) { | |
508 | case SR_CONF_LIMIT_SAMPLES: | |
509 | case SR_CONF_LIMIT_MSEC: | |
510 | return sr_sw_limits_config_get(&devc->limits, key, data); | |
511 | case SR_CONF_CHANNEL_CONFIG: | |
512 | *data = g_variant_new_string(channel_modes[devc->tracking_mode]); | |
513 | break; | |
514 | default: | |
515 | return SR_ERR_NA; | |
516 | } | |
517 | } else { | |
518 | /* We only ever have one channel per channel group in this driver. */ | |
519 | ch = cg->channels->data; | |
520 | ch_idx = ch->index; | |
521 | ||
522 | switch (key) { | |
523 | case SR_CONF_VOLTAGE: | |
524 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_last); | |
525 | break; | |
526 | case SR_CONF_VOLTAGE_TARGET: | |
527 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_max); | |
528 | break; | |
529 | case SR_CONF_CURRENT: | |
530 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_last); | |
531 | break; | |
532 | case SR_CONF_CURRENT_LIMIT: | |
533 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_max); | |
534 | break; | |
535 | case SR_CONF_ENABLED: | |
536 | *data = g_variant_new_boolean(devc->channel_status[ch_idx].output_enabled); | |
537 | break; | |
538 | default: | |
539 | return SR_ERR_NA; | |
540 | } | |
541 | } | |
542 | ||
543 | return SR_OK; | |
544 | } | |
545 | ||
546 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
547 | const struct sr_channel_group *cg) | |
548 | { | |
549 | struct dev_context *devc; | |
550 | struct sr_channel *ch; | |
551 | gdouble dval; | |
552 | int ch_idx; | |
553 | const char *sval; | |
554 | gboolean bval; | |
555 | int idx; | |
556 | gboolean found; | |
557 | ||
558 | devc = sdi->priv; | |
559 | ||
560 | /* Cannot change settings while acquisition active, would cause a mess with commands. | |
561 | * Changing this would be possible, but tricky. */ | |
562 | if (devc->acq_running) | |
563 | return SR_ERR_NA; | |
564 | ||
565 | if (!cg) { | |
566 | switch (key) { | |
567 | case SR_CONF_LIMIT_MSEC: | |
568 | case SR_CONF_LIMIT_SAMPLES: | |
569 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
570 | case SR_CONF_CHANNEL_CONFIG: | |
571 | sval = g_variant_get_string(data, NULL); | |
572 | found = FALSE; | |
573 | for (idx = 0; idx < (int)ARRAY_SIZE(channel_modes); idx++) { | |
574 | if (!strcmp(sval, channel_modes[idx])) { | |
575 | found = TRUE; | |
576 | if (devc->tracking_mode == idx) | |
577 | break; /* Nothing to do! */ | |
578 | devc->tracking_mode = idx; | |
579 | if (devc->model->modelid >= LPS_304) /* No use to set anything in the smaller models. */ | |
580 | return lps_cmd_ok(sdi->conn, "TRACK%1d", devc->tracking_mode); | |
581 | } | |
582 | if (devc->model->modelid <= LPS_303) /* Only first setting possible for smaller models. */ | |
583 | break; | |
584 | } | |
585 | if (!found) | |
586 | return SR_ERR_ARG; | |
587 | break; | |
588 | default: | |
589 | return SR_ERR_NA; | |
590 | } | |
591 | } else { | |
592 | /* We only ever have one channel per channel group in this driver. */ | |
593 | ch = cg->channels->data; | |
594 | ch_idx = ch->index; | |
595 | ||
596 | switch (key) { | |
597 | case SR_CONF_VOLTAGE_TARGET: | |
598 | dval = g_variant_get_double(data); | |
599 | if (dval < 0 || dval > devc->model->channels[ch_idx].voltage[1]) | |
600 | return SR_ERR_ARG; | |
601 | if (ch_idx == 2) { | |
602 | if (devc->model->modelid < LPS_304) | |
603 | return SR_ERR_ARG; | |
604 | ||
605 | if (fabs(dval - 5.000) <= 0.001) | |
606 | dval = 5.0; | |
607 | else if ((devc->model->modelid >= LPS_305) && (fabs(dval - 3.300) <= 0.001)) | |
608 | dval = 3.3; | |
609 | else return SR_ERR_ARG; | |
610 | } | |
611 | ||
612 | devc->channel_status[ch_idx].output_voltage_max = dval; | |
613 | if (ch_idx == 2) | |
614 | return lps_cmd_ok(sdi->conn, "VDD%1.0f", trunc(dval)); | |
615 | else | |
616 | return lps_cmd_ok(sdi->conn, "VSET%d %05.3f", ch_idx+1, dval); | |
617 | break; | |
618 | case SR_CONF_CURRENT_LIMIT: | |
619 | dval = g_variant_get_double(data); | |
620 | if (dval < 0 || dval > devc->model->channels[ch_idx].current[1]) | |
621 | return SR_ERR_ARG; | |
622 | if (ch_idx == 2) /* No current setting for CH3. */ | |
623 | return SR_ERR_NA; | |
624 | devc->channel_status[ch_idx].output_current_max = dval; | |
625 | return lps_cmd_ok(sdi->conn, "ISET%d %05.4f", ch_idx+1, dval); | |
626 | break; | |
627 | case SR_CONF_ENABLED: | |
628 | bval = g_variant_get_boolean(data); | |
629 | if (bval == devc->channel_status[ch_idx].output_enabled) /* Nothing to do. */ | |
630 | break; | |
631 | devc->channel_status[ch_idx].output_enabled = bval; | |
632 | if (ch_idx != 2) { /* Channels 1,2 can be set only together. */ | |
633 | devc->channel_status[ch_idx^1].output_enabled = bval; | |
634 | return lps_cmd_ok(sdi->conn, "OUT%1d", (int)bval); | |
635 | } else { /* Channel 3: No command to disable output, set voltage to 0 instead. */ | |
636 | if (bval) | |
637 | return lps_cmd_ok(sdi->conn, "VDD%1.0f", devc->channel_status[ch_idx].output_voltage_max); | |
638 | else | |
639 | return lps_cmd_ok(sdi->conn, "VDD0"); | |
640 | } | |
641 | break; | |
642 | default: | |
643 | return SR_ERR_NA; | |
644 | } | |
645 | } | |
646 | ||
647 | return SR_OK; | |
648 | } | |
649 | ||
650 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
651 | const struct sr_channel_group *cg) | |
652 | { | |
653 | struct dev_context *devc; | |
654 | struct sr_channel *ch; | |
655 | int ch_idx; | |
656 | ||
657 | devc = (sdi) ? sdi->priv : NULL; | |
658 | ||
659 | if (!cg) { | |
660 | switch (key) { | |
661 | case SR_CONF_SCAN_OPTIONS: | |
662 | case SR_CONF_DEVICE_OPTIONS: | |
663 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
664 | case SR_CONF_CHANNEL_CONFIG: | |
665 | if (devc->model->modelid <= LPS_303) { | |
666 | /* The 1-channel models. */ | |
667 | *data = g_variant_new_strv(channel_modes, 1); | |
668 | } else { | |
669 | /* The other models support all modes. */ | |
670 | *data = g_variant_new_strv(ARRAY_AND_SIZE(channel_modes)); | |
671 | } | |
672 | return SR_OK; | |
673 | default: | |
674 | return SR_ERR_NA; | |
675 | } | |
676 | } | |
677 | ||
678 | /* We only ever have one channel per channel group in this driver. */ | |
679 | ch = cg->channels->data; | |
680 | ch_idx = ch->index; | |
681 | ||
682 | switch (key) { | |
683 | case SR_CONF_DEVICE_OPTIONS: | |
684 | if ((ch_idx == 0) || (ch_idx == 1)) /* CH1, CH2 */ | |
685 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_ch12)); | |
686 | else /* Must be CH3 */ | |
687 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_ch3)); | |
688 | break; | |
689 | case SR_CONF_VOLTAGE_TARGET: | |
690 | *data = std_gvar_min_max_step_array(devc->model->channels[ch_idx].voltage); | |
691 | break; | |
692 | case SR_CONF_CURRENT_LIMIT: | |
693 | *data = std_gvar_min_max_step_array(devc->model->channels[ch_idx].current); | |
694 | break; | |
695 | default: | |
696 | return SR_ERR_NA; | |
697 | } | |
698 | ||
699 | return SR_OK; | |
700 | } | |
701 | ||
702 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
703 | { | |
704 | struct dev_context *devc; | |
705 | struct sr_serial_dev_inst *serial; | |
706 | ||
707 | devc = sdi->priv; | |
708 | ||
709 | devc->acq_running = TRUE; | |
710 | ||
711 | serial = sdi->conn; | |
712 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
713 | motech_lps_30x_receive_data, (void *)sdi); | |
714 | std_session_send_df_header(sdi); | |
715 | ||
716 | sr_sw_limits_acquisition_start(&devc->limits); | |
717 | ||
718 | devc->acq_req = AQ_NONE; | |
719 | /* Do not start polling device here, the read function will do it in 50 ms. */ | |
720 | ||
721 | return SR_OK; | |
722 | } | |
723 | ||
724 | static struct sr_dev_driver motech_lps_301_driver_info = { | |
725 | .name = "motech-lps-301", | |
726 | .longname = "Motech LPS-301", | |
727 | .api_version = 1, | |
728 | .init = std_init, | |
729 | .cleanup = std_cleanup, | |
730 | .scan = scan_lps301, | |
731 | .dev_list = std_dev_list, | |
732 | .dev_clear = dev_clear, | |
733 | .config_get = config_get, | |
734 | .config_set = config_set, | |
735 | .config_list = config_list, | |
736 | .dev_open = std_serial_dev_open, | |
737 | .dev_close = std_serial_dev_close, | |
738 | .dev_acquisition_start = dev_acquisition_start, | |
739 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
740 | .context = NULL, | |
741 | }; | |
742 | SR_REGISTER_DEV_DRIVER(motech_lps_301_driver_info); |