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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 | /** @file | |
22 | * <em>Motech LPS-30x series</em> power supply driver | |
23 | * @internal | |
24 | */ | |
25 | ||
26 | #include <config.h> | |
27 | #include <ctype.h> | |
28 | #include <math.h> | |
29 | #include <string.h> | |
30 | #include "protocol.h" | |
31 | ||
32 | /* Forward declarations */ | |
33 | SR_PRIV struct sr_dev_driver motech_lps_301_driver_info; | |
34 | SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen); | |
35 | SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char *fmt, va_list args); | |
36 | SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char *fmt, ...); | |
37 | SR_PRIV int lps_cmd_reply(char *reply, struct sr_serial_dev_inst *serial, const char *fmt, ...); | |
38 | SR_PRIV int lps_query_status(struct sr_dev_inst *sdi); | |
39 | ||
40 | /* Serial communication parameters */ | |
41 | #define SERIALCOMM "2400/8n1/dtr=1/rts=1/flow=0" | |
42 | ||
43 | #define VENDOR_MOTECH "Motech" | |
44 | ||
45 | /** Driver capabilities generic. */ | |
46 | static const uint32_t drvopts[] = { | |
47 | /* Device class */ | |
48 | SR_CONF_POWER_SUPPLY, | |
49 | }; | |
50 | ||
51 | /** Driver scanning options. */ | |
52 | static const uint32_t scanopts[] = { | |
53 | SR_CONF_CONN, | |
54 | SR_CONF_SERIALCOMM, | |
55 | }; | |
56 | ||
57 | /** Hardware capabilities generic. */ | |
58 | static const uint32_t devopts[] = { | |
59 | /* Device class */ | |
60 | SR_CONF_POWER_SUPPLY, | |
61 | /* Acquisition modes. */ | |
62 | SR_CONF_CONTINUOUS, | |
63 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
64 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
65 | /* Device configuration */ | |
66 | SR_CONF_CHANNEL_CONFIG | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
67 | }; | |
68 | ||
69 | /** Hardware capabilities channel 1, 2. */ | |
70 | static const uint32_t devopts_ch12[] = { | |
71 | SR_CONF_VOLTAGE | SR_CONF_GET, | |
72 | SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
73 | SR_CONF_CURRENT | SR_CONF_GET, | |
74 | SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
75 | SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET, | |
76 | }; | |
77 | ||
78 | /** Hardware capabilities channel 3. (LPS-304/305 only). */ | |
79 | static const uint32_t devopts_ch3[] = { | |
80 | SR_CONF_VOLTAGE | SR_CONF_GET, | |
81 | SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET, | |
82 | }; | |
83 | ||
84 | static const char *channel_modes[] = { | |
85 | "Independent", | |
86 | "Track1", | |
87 | "Track2", | |
88 | }; | |
89 | ||
90 | static const struct lps_modelspec models[] = { | |
91 | { LPS_UNKNOWN, "Dummy", 0, | |
92 | { | |
93 | ||
94 | } | |
95 | }, | |
96 | { LPS_301, "LPS-301", 1, | |
97 | { | |
98 | /* Channel 1 */ | |
99 | { { 0, 32, 0.01 }, { 0.005, 2, 0.001 } }, | |
100 | }, | |
101 | }, | |
102 | { LPS_302, "LPS-302", 1, | |
103 | { | |
104 | /* Channel 1 */ | |
105 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
106 | }, | |
107 | }, | |
108 | { LPS_303, "LPS-303", 1, | |
109 | { | |
110 | /* Channel 1 */ | |
111 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
112 | }, | |
113 | }, | |
114 | { LPS_304, "LPS-304", 3, | |
115 | { | |
116 | /* Channel 1 */ | |
117 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
118 | /* Channel 2 */ | |
119 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
120 | /* Channel 3 */ | |
121 | { { 5, 5, 0.0 }, { 0.005, 3, 0.001 } }, | |
122 | }, | |
123 | }, | |
124 | { LPS_305, "LPS-305", 3, | |
125 | { | |
126 | /* Channel 1 */ | |
127 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
128 | /* Channel 2 */ | |
129 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
130 | /* Channel 3 */ | |
131 | { { 3.3, 5, 1.7 }, { 0.005, 3, 0.001 } }, | |
132 | }, | |
133 | }, | |
134 | }; | |
135 | ||
136 | /** Send command to device with va_list. | |
137 | */ | |
138 | SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char *fmt, va_list args) | |
139 | { | |
140 | int retc; | |
141 | char auxfmt[LINELEN_MAX]; | |
142 | char buf[LINELEN_MAX]; | |
143 | ||
144 | snprintf(auxfmt, sizeof(auxfmt), "%s\r\n", fmt); | |
145 | vsnprintf(buf, sizeof(buf), auxfmt, args); | |
146 | ||
147 | sr_spew("lps_send_va: \"%s\"", buf); | |
148 | ||
149 | retc = serial_write_blocking(serial, buf, strlen(buf), | |
150 | serial_timeout(serial, strlen(buf))); | |
151 | ||
152 | if (retc < 0) | |
153 | return SR_ERR; | |
154 | ||
155 | return SR_OK; | |
156 | } | |
157 | ||
158 | /** Send command to device. | |
159 | */ | |
160 | SR_PRIV int lps_send_req(struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
161 | { | |
162 | int retc; | |
163 | va_list args; | |
164 | ||
165 | va_start(args, fmt); | |
166 | retc = lps_send_va(serial, fmt, args); | |
167 | va_end(args); | |
168 | ||
169 | return retc; | |
170 | } | |
171 | ||
172 | /** Send command and consume simple OK reply. */ | |
173 | SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
174 | { | |
175 | int retc; | |
176 | va_list args; | |
177 | char buf[LINELEN_MAX]; | |
178 | char *bufptr; | |
179 | int buflen; | |
180 | ||
181 | /* Send command */ | |
182 | va_start(args, fmt); | |
183 | retc = lps_send_va(serial, fmt, args); | |
184 | va_end(args); | |
185 | ||
186 | if (retc != SR_OK) | |
187 | return SR_ERR; | |
188 | ||
189 | /* Read reply */ | |
190 | buf[0] = '\0'; | |
191 | bufptr = buf; | |
192 | buflen = sizeof(buf); | |
193 | retc = lps_read_reply(serial, &bufptr, &buflen); | |
194 | if ((retc == SR_OK) && (buflen == 0)) | |
195 | return SR_OK; | |
196 | ||
197 | return SR_ERR; | |
198 | } | |
199 | ||
200 | /** Send command and read reply string. | |
201 | * @param reply Pointer to buffer of size LINELEN_MAX. Will be NUL-terminated. | |
202 | */ | |
203 | SR_PRIV int lps_cmd_reply(char *reply, struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
204 | { | |
205 | int retc; | |
206 | va_list args; | |
207 | char buf[LINELEN_MAX]; | |
208 | char *bufptr; | |
209 | int buflen; | |
210 | ||
211 | reply[0] = '\0'; | |
212 | ||
213 | /* Send command */ | |
214 | va_start(args, fmt); | |
215 | retc = lps_send_va(serial, fmt, args); | |
216 | va_end(args); | |
217 | ||
218 | if (retc != SR_OK) | |
219 | return SR_ERR; | |
220 | ||
221 | /* Read reply */ | |
222 | buf[0] = '\0'; | |
223 | bufptr = buf; | |
224 | buflen = sizeof(buf); | |
225 | retc = lps_read_reply(serial, &bufptr, &buflen); | |
226 | if ((retc == SR_OK) && (buflen > 0)) { | |
227 | strcpy(reply, buf); | |
228 | return SR_OK; | |
229 | } | |
230 | ||
231 | return SR_ERR; | |
232 | } | |
233 | ||
234 | /** Process integer value returned by STATUS command. */ | |
235 | SR_PRIV int lps_process_status(struct sr_dev_inst *sdi, int stat) | |
236 | { | |
237 | struct dev_context *devc; | |
238 | int tracking_mode; | |
239 | ||
240 | devc = sdi->priv; | |
241 | ||
242 | sr_spew("Status: %d", stat); | |
243 | devc->channel_status[0].cc_mode = (stat & 0x01) != 0; | |
244 | sr_spew("Channel 1 %s mode", devc->channel_status[0].cc_mode?"CC":"CV"); | |
245 | if (devc->model->num_channels > 1) { | |
246 | devc->channel_status[1].cc_mode = (stat & 0x02) != 0; | |
247 | sr_spew("Channel 2 %s mode", devc->channel_status[1].cc_mode?"CC":"CV"); | |
248 | ||
249 | tracking_mode = (stat & 0x0c) >> 2; | |
250 | switch (tracking_mode) { | |
251 | case 0: devc->tracking_mode = 0; | |
252 | break; | |
253 | case 2: devc->tracking_mode = 1; | |
254 | break; | |
255 | case 3: devc->tracking_mode = 2; | |
256 | break; | |
257 | default: | |
258 | sr_err("Illegal channel tracking mode %d!", tracking_mode); | |
259 | devc->tracking_mode = 0; | |
260 | break; | |
261 | } | |
262 | ||
263 | sr_spew("Channel tracking: %d", devc->tracking_mode); | |
264 | } | |
265 | devc->channel_status[0].output_enabled = devc->channel_status[1].output_enabled = stat&0x040?TRUE:FALSE; | |
266 | sr_spew("Channel 1%s output: %s", devc->model->num_channels > 1?"+2":"", devc->channel_status[0].output_enabled?"ON":"OFF"); | |
267 | if (devc->model->num_channels > 2) { | |
268 | devc->channel_status[2].output_enabled = stat&0x010?TRUE:FALSE; | |
269 | devc->channel_status[2].output_voltage_last = stat&0x020?3.3:5; | |
270 | sr_spew("Channel 3 output: %s, U=%02f V, overload=%d", | |
271 | devc->channel_status[2].output_enabled?"ON":"OFF", | |
272 | devc->channel_status[2].output_voltage_last, | |
273 | stat&0x080?1:0); | |
274 | } | |
275 | sr_spew("Fan=%d, beep=%d, CC output compensated=%d", stat&0x0100?1:0, stat&0x0200?1:0, stat&0x0400?1:0); | |
276 | ||
277 | return SR_OK; | |
278 | } | |
279 | ||
280 | /** Send STATUS commend and process status string. */ | |
281 | SR_PRIV int lps_query_status(struct sr_dev_inst *sdi) | |
282 | { | |
283 | char buf[LINELEN_MAX]; | |
284 | int stat, ret; | |
285 | struct dev_context *devc; | |
286 | ||
287 | devc = sdi->priv; | |
288 | ||
289 | devc->req_sent_at = g_get_real_time(); | |
290 | ||
291 | if ((ret = lps_cmd_reply(buf, sdi->conn, "STATUS")) < 0) { | |
292 | sr_err("%s: Failed to read status: %s.", __func__, | |
293 | sr_strerror(ret)); | |
294 | return SR_ERR; | |
295 | } | |
296 | ||
297 | if (sr_atoi(buf, &stat) != SR_OK) | |
298 | return SR_ERR; | |
299 | ||
300 | return lps_process_status(sdi, stat); | |
301 | } | |
302 | ||
303 | static gint64 calc_timeout_ms(gint64 start_us) | |
304 | { | |
305 | gint64 result = REQ_TIMEOUT_MS - ((g_get_real_time() - start_us) / 1000); | |
306 | ||
307 | if (result < 0) | |
308 | return 0; | |
309 | ||
310 | return result; | |
311 | } | |
312 | ||
313 | /** Read message into buf until "OK" received. | |
314 | * @retval SR_OK Msg received; buf and buflen contain result, if any except OK. | |
315 | * @retval SR_ERR Error, including timeout. | |
316 | */ | |
317 | SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen) | |
318 | { | |
319 | int retries; | |
320 | char buf2[LINELEN_MAX]; | |
321 | char *buf2ptr; | |
322 | int buf2len; | |
323 | gint64 timeout_start; | |
324 | ||
325 | *buf[0] = '\0'; | |
326 | ||
327 | /* Read one line. It is either a data message or "OK". */ | |
328 | timeout_start = g_get_real_time(); | |
329 | buf2len = *buflen; | |
330 | /* Up to 5 tries because serial_readline() will consume only one CR or LF per | |
331 | * call, but device sends up to 4 in a row. */ | |
332 | for (retries = 0; retries < 5; retries++) { | |
333 | *buflen = buf2len; | |
334 | if (serial_readline(serial, buf, buflen, calc_timeout_ms(timeout_start)) != SR_OK) | |
335 | return SR_ERR; | |
336 | if (!strcmp(*buf, "OK")) { /* We got an OK! */ | |
337 | *buf[0] = '\0'; | |
338 | *buflen = 0; | |
339 | return SR_OK; | |
340 | } | |
341 | if (*buflen > 0) /* We got a msg! */ | |
342 | break; | |
343 | } | |
344 | ||
345 | /* A data msg is in buf (possibly ERROR), need to consume "OK". */ | |
346 | buf2[0] = '\0'; | |
347 | buf2ptr = buf2; | |
348 | for (retries = 0; retries < 5; retries++) { | |
349 | buf2len = sizeof(buf2); | |
350 | if (serial_readline(serial, &buf2ptr, &buf2len, calc_timeout_ms(timeout_start)) != SR_OK) | |
351 | return SR_ERR; | |
352 | ||
353 | if (!strcmp(buf2ptr, "OK")) { /* We got an OK! */ | |
354 | if (!strcmp(*buf, "ERROR")) { /* OK came after msg ERROR! */ | |
355 | sr_spew("ERROR found!"); | |
356 | *buf[0] = '\0'; | |
357 | *buflen = 0; | |
358 | return SR_ERR; | |
359 | } | |
360 | return SR_OK; | |
361 | } | |
362 | } | |
363 | ||
364 | return SR_ERR; /* Timeout! */ | |
365 | } | |
366 | ||
367 | /** Scan for LPS-300 series device. | |
368 | */ | |
369 | static GSList *do_scan(lps_modelid modelid, struct sr_dev_driver *drv, GSList *options) | |
370 | { | |
371 | struct sr_dev_inst *sdi; | |
372 | struct drv_context *drvc; | |
373 | struct dev_context *devc; | |
374 | struct sr_serial_dev_inst *serial; | |
375 | struct sr_channel *ch; | |
376 | struct sr_channel_group *cg; | |
377 | GSList *devices; | |
378 | const char *conn, *serialcomm; | |
379 | int cnt, ret; | |
380 | gchar buf[LINELEN_MAX]; | |
381 | gchar channel[10]; | |
382 | char *verstr; | |
383 | ||
384 | sdi = NULL; | |
385 | devc = NULL; | |
386 | conn = serialcomm = NULL; | |
387 | devices = NULL; | |
388 | ||
389 | drvc = drv->context; | |
390 | drvc->instances = NULL; | |
391 | ||
392 | sr_spew("scan() called!"); | |
393 | ||
394 | /* Process and check options. */ | |
395 | if (sr_serial_extract_options(options, &conn, &serialcomm) != SR_OK) | |
396 | return NULL; | |
397 | if (!serialcomm) | |
398 | serialcomm = SERIALCOMM; | |
399 | ||
400 | /* Init serial port. */ | |
401 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
402 | ||
403 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
404 | goto exit_err; | |
405 | ||
406 | /* Query and verify model string. */ | |
407 | serial_flush(serial); | |
408 | if (lps_cmd_reply(buf, serial, "MODEL") != SR_OK) | |
409 | return NULL; | |
410 | ||
411 | /* Check model string. */ | |
412 | if (strncmp(buf, "LPS-", 4)) { | |
413 | sr_spew("Unknown model code \"%s\"!", buf); | |
414 | return NULL; | |
415 | } | |
416 | ||
417 | /* Bug in device FW 1.17, model number is empty, so this can't work with this FW! */ | |
418 | if (modelid == LPS_UNKNOWN) { | |
419 | g_strstrip(buf); | |
420 | for (cnt = LPS_301; cnt <= LPS_305; cnt++) { | |
421 | if (!strcmp(buf, models[cnt].modelstr)) { | |
422 | modelid = cnt; | |
423 | break; | |
424 | } | |
425 | } | |
426 | if (modelid == LPS_UNKNOWN) { | |
427 | sr_err("Unable to detect model from model string '%s'!", buf); | |
428 | return NULL; | |
429 | } | |
430 | } | |
431 | ||
432 | /* Query version */ | |
433 | verstr = NULL; | |
434 | if ((ret = lps_cmd_reply(buf, serial, "VERSION")) == SR_OK) { | |
435 | if (strncmp(buf, "Ver-", 4)) { | |
436 | sr_spew("Version string %s not recognized.", buf); | |
437 | goto exit_err; | |
438 | } | |
439 | ||
440 | g_strstrip(buf); | |
441 | verstr = buf + 4; | |
442 | } | |
443 | else /* Bug in device FW 1.17: Querying version string fails while output is active. | |
444 | Therefore just print an error message, but do not exit with error. */ | |
445 | sr_err("Failed to query for hardware version: %s.", | |
446 | sr_strerror(ret)); | |
447 | ||
448 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
449 | sdi->status = SR_ST_INACTIVE; | |
450 | sdi->vendor = g_strdup(VENDOR_MOTECH); | |
451 | sdi->model = g_strdup(models[modelid].modelstr); | |
452 | sdi->version = g_strdup(verstr); | |
453 | sdi->driver = drv; | |
454 | sdi->inst_type = SR_INST_SERIAL; | |
455 | sdi->conn = serial; | |
456 | ||
457 | devc = g_malloc0(sizeof(struct dev_context)); | |
458 | sr_sw_limits_init(&devc->limits); | |
459 | devc->model = &models[modelid]; | |
460 | ||
461 | sdi->priv = devc; | |
462 | ||
463 | /* Setup channels and channel groups. */ | |
464 | for (cnt = 0; cnt < models[modelid].num_channels; cnt++) { | |
465 | snprintf(channel, sizeof(channel), "CH%d", cnt + 1); | |
466 | ch = sr_channel_new(sdi, cnt, SR_CHANNEL_ANALOG, TRUE, channel); | |
467 | ||
468 | devc->channel_status[cnt].info = g_slist_append(NULL, ch); | |
469 | ||
470 | cg = g_malloc(sizeof(struct sr_channel_group)); | |
471 | snprintf(channel, sizeof(channel), "CG%d", cnt+1); | |
472 | cg->name = g_strdup(channel); | |
473 | cg->priv = NULL; | |
474 | cg->channels = g_slist_append(NULL, ch); | |
475 | ||
476 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); | |
477 | } | |
478 | ||
479 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
480 | devices = g_slist_append(devices, sdi); | |
481 | ||
482 | /* Query status */ | |
483 | if (lps_query_status(sdi) != SR_OK) | |
484 | goto exit_err; | |
485 | ||
486 | serial_close(serial); | |
487 | if (!devices) | |
488 | sr_serial_dev_inst_free(serial); | |
489 | ||
490 | return devices; | |
491 | ||
492 | exit_err: | |
493 | sr_info("%s: Error!", __func__); | |
494 | ||
495 | if (serial) { | |
496 | serial_close(serial); | |
497 | sr_serial_dev_inst_free(serial); | |
498 | } | |
499 | g_free(devc); | |
500 | if (sdi) | |
501 | sr_dev_inst_free(sdi); | |
502 | ||
503 | return NULL; | |
504 | } | |
505 | ||
506 | /** Scan for LPS-301 device. */ | |
507 | static GSList *scan_lps301(struct sr_dev_driver *di, GSList *options) | |
508 | { | |
509 | return do_scan(LPS_301, di, options); | |
510 | } | |
511 | ||
512 | static void dev_clear_private(struct dev_context *devc) | |
513 | { | |
514 | int ch_idx; | |
515 | ||
516 | /* Free channel_status.info (list only, data owned by sdi). */ | |
517 | for (ch_idx = 0; ch_idx < devc->model->num_channels; ch_idx++) | |
518 | g_slist_free(devc->channel_status[ch_idx].info); | |
519 | } | |
520 | ||
521 | static int dev_clear_lps301(const struct sr_dev_driver *di) | |
522 | { | |
523 | return std_dev_clear(di, (std_dev_clear_callback)dev_clear_private); | |
524 | } | |
525 | ||
526 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
527 | const struct sr_channel_group *cg) | |
528 | { | |
529 | struct dev_context *devc; | |
530 | struct sr_channel *ch; | |
531 | int ch_idx; | |
532 | ||
533 | if (!sdi) | |
534 | return SR_ERR_ARG; | |
535 | ||
536 | devc = sdi->priv; | |
537 | ||
538 | if (!cg) { | |
539 | /* No channel group: global options. */ | |
540 | switch (key) { | |
541 | case SR_CONF_LIMIT_SAMPLES: | |
542 | case SR_CONF_LIMIT_MSEC: | |
543 | return sr_sw_limits_config_get(&devc->limits, key, data); | |
544 | case SR_CONF_CHANNEL_CONFIG: | |
545 | *data = g_variant_new_string(channel_modes[devc->tracking_mode]); | |
546 | break; | |
547 | default: | |
548 | return SR_ERR_NA; | |
549 | } | |
550 | } else { | |
551 | /* We only ever have one channel per channel group in this driver. */ | |
552 | ch = cg->channels->data; | |
553 | ch_idx = ch->index; | |
554 | switch (key) { | |
555 | case SR_CONF_VOLTAGE: | |
556 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_last); | |
557 | break; | |
558 | case SR_CONF_VOLTAGE_TARGET: | |
559 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_max); | |
560 | break; | |
561 | case SR_CONF_CURRENT: | |
562 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_last); | |
563 | break; | |
564 | case SR_CONF_CURRENT_LIMIT: | |
565 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_max); | |
566 | break; | |
567 | case SR_CONF_ENABLED: | |
568 | *data = g_variant_new_boolean(devc->channel_status[ch_idx].output_enabled); | |
569 | break; | |
570 | default: | |
571 | return SR_ERR_NA; | |
572 | } | |
573 | } | |
574 | ||
575 | return SR_OK; | |
576 | } | |
577 | ||
578 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
579 | const struct sr_channel_group *cg) | |
580 | { | |
581 | struct dev_context *devc; | |
582 | struct sr_channel *ch; | |
583 | gdouble dval; | |
584 | int ch_idx; | |
585 | const char *sval; | |
586 | gboolean bval; | |
587 | int idx; | |
588 | gboolean found; | |
589 | ||
590 | if (sdi->status != SR_ST_ACTIVE) | |
591 | return SR_ERR_DEV_CLOSED; | |
592 | ||
593 | devc = sdi->priv; | |
594 | ||
595 | /* Cannot change settings while acquisition active, would cause a mess with commands. | |
596 | * Changing this would be possible, but tricky. */ | |
597 | if (devc->acq_running) | |
598 | return SR_ERR_NA; | |
599 | ||
600 | if (!cg) { | |
601 | /* No channel group: global options. */ | |
602 | switch (key) { | |
603 | case SR_CONF_LIMIT_MSEC: | |
604 | case SR_CONF_LIMIT_SAMPLES: | |
605 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
606 | case SR_CONF_CHANNEL_CONFIG: | |
607 | sval = g_variant_get_string(data, NULL); | |
608 | found = FALSE; | |
609 | for (idx = 0; idx < (int)ARRAY_SIZE(channel_modes); idx++) { | |
610 | if (!strcmp(sval, channel_modes[idx])) { | |
611 | found = TRUE; | |
612 | if (devc->tracking_mode == idx) | |
613 | break; /* Nothing to do! */ | |
614 | devc->tracking_mode = idx; | |
615 | if (devc->model->modelid >= LPS_304) /* No use to set anything in the smaller models. */ | |
616 | return lps_cmd_ok(sdi->conn, "TRACK%1d", devc->tracking_mode); | |
617 | } | |
618 | if (devc->model->modelid <= LPS_303) /* Only first setting possible for smaller models. */ | |
619 | break; | |
620 | } | |
621 | if (!found) | |
622 | return SR_ERR_ARG; | |
623 | break; | |
624 | default: | |
625 | return SR_ERR_NA; | |
626 | } | |
627 | } else { | |
628 | /* Channel group specified: per-channel options. */ | |
629 | /* We only ever have one channel per channel group in this driver. */ | |
630 | ch = cg->channels->data; | |
631 | ch_idx = ch->index; | |
632 | ||
633 | switch (key) { | |
634 | case SR_CONF_VOLTAGE_TARGET: | |
635 | dval = g_variant_get_double(data); | |
636 | if (dval < 0 || dval > devc->model->channels[ch_idx].voltage[1]) | |
637 | return SR_ERR_ARG; | |
638 | if (ch_idx == 2) { | |
639 | if (devc->model->modelid < LPS_304) | |
640 | return SR_ERR_ARG; | |
641 | ||
642 | if (fabs(dval - 5.000) <= 0.001) | |
643 | dval = 5.0; | |
644 | else if ((devc->model->modelid >= LPS_305) && (fabs(dval - 3.300) <= 0.001)) | |
645 | dval = 3.3; | |
646 | else return SR_ERR_ARG; | |
647 | } | |
648 | ||
649 | devc->channel_status[ch_idx].output_voltage_max = dval; | |
650 | if (ch_idx == 2) | |
651 | return lps_cmd_ok(sdi->conn, "VDD%1.0f", trunc(dval)); | |
652 | else | |
653 | return lps_cmd_ok(sdi->conn, "VSET%d %05.3f", ch_idx+1, dval); | |
654 | break; | |
655 | case SR_CONF_CURRENT_LIMIT: | |
656 | dval = g_variant_get_double(data); | |
657 | if (dval < 0 || dval > devc->model->channels[ch_idx].current[1]) | |
658 | return SR_ERR_ARG; | |
659 | if (ch_idx == 2) /* No current setting for CH3. */ | |
660 | return SR_ERR_NA; | |
661 | devc->channel_status[ch_idx].output_current_max = dval; | |
662 | return lps_cmd_ok(sdi->conn, "ISET%d %05.4f", ch_idx+1, dval); | |
663 | break; | |
664 | case SR_CONF_ENABLED: | |
665 | bval = g_variant_get_boolean(data); | |
666 | if (bval == devc->channel_status[ch_idx].output_enabled) /* Nothing to do. */ | |
667 | break; | |
668 | devc->channel_status[ch_idx].output_enabled = bval; | |
669 | if (ch_idx != 2) { /* Channels 1,2 can be set only together. */ | |
670 | devc->channel_status[ch_idx^1].output_enabled = bval; | |
671 | return lps_cmd_ok(sdi->conn, "OUT%1d", (int)bval); | |
672 | } else { /* Channel 3: No command to disable output, set voltage to 0 instead. */ | |
673 | if (bval) | |
674 | return lps_cmd_ok(sdi->conn, "VDD%1.0f", devc->channel_status[ch_idx].output_voltage_max); | |
675 | else | |
676 | return lps_cmd_ok(sdi->conn, "VDD0"); | |
677 | } | |
678 | break; | |
679 | default: | |
680 | return SR_ERR_NA; | |
681 | } | |
682 | } | |
683 | ||
684 | return SR_OK; | |
685 | } | |
686 | ||
687 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
688 | const struct sr_channel_group *cg) | |
689 | { | |
690 | struct dev_context *devc; | |
691 | struct sr_channel *ch; | |
692 | int ch_idx, i; | |
693 | GVariant *gvar; | |
694 | GVariantBuilder gvb; | |
695 | ||
696 | /* Driver options, no device instance necessary. */ | |
697 | switch (key) { | |
698 | case SR_CONF_SCAN_OPTIONS: | |
699 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
700 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
701 | return SR_OK; | |
702 | case SR_CONF_DEVICE_OPTIONS: | |
703 | if (sdi) | |
704 | break; | |
705 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
706 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
707 | return SR_OK; | |
708 | default: | |
709 | if (!sdi) | |
710 | return SR_ERR_ARG; | |
711 | devc = sdi->priv; | |
712 | break; | |
713 | } | |
714 | ||
715 | /* Device options, independent from channel groups. */ | |
716 | if (!cg) { | |
717 | switch (key) { | |
718 | case SR_CONF_DEVICE_OPTIONS: | |
719 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
720 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
721 | return SR_OK; | |
722 | case SR_CONF_CHANNEL_CONFIG: | |
723 | if (devc->model->modelid <= LPS_303) { | |
724 | /* The 1-channel models. */ | |
725 | *data = g_variant_new_strv(channel_modes, 1); | |
726 | } else { | |
727 | /* The other models support all modes. */ | |
728 | *data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes)); | |
729 | } | |
730 | return SR_OK; | |
731 | default: | |
732 | return SR_ERR_NA; | |
733 | } | |
734 | } | |
735 | ||
736 | /* Device options, depending on channel groups. */ | |
737 | ch = cg->channels->data; | |
738 | ch_idx = ch->index; | |
739 | switch (key) { | |
740 | case SR_CONF_DEVICE_OPTIONS: | |
741 | if ((ch_idx == 0) || (ch_idx == 1)) /* CH1, CH2 */ | |
742 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
743 | devopts_ch12, ARRAY_SIZE(devopts_ch12), sizeof(uint32_t)); | |
744 | else /* Must be CH3 */ | |
745 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
746 | devopts_ch3, ARRAY_SIZE(devopts_ch3), sizeof(uint32_t)); | |
747 | break; | |
748 | case SR_CONF_VOLTAGE_TARGET: | |
749 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
750 | /* Min, max, step. */ | |
751 | for (i = 0; i < 3; i++) { | |
752 | gvar = g_variant_new_double(devc->model->channels[ch_idx].voltage[i]); | |
753 | g_variant_builder_add_value(&gvb, gvar); | |
754 | } | |
755 | *data = g_variant_builder_end(&gvb); | |
756 | break; | |
757 | case SR_CONF_CURRENT_LIMIT: | |
758 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
759 | /* Min, max, step. */ | |
760 | for (i = 0; i < 3; i++) { | |
761 | gvar = g_variant_new_double(devc->model->channels[ch_idx].current[i]); | |
762 | g_variant_builder_add_value(&gvb, gvar); | |
763 | } | |
764 | *data = g_variant_builder_end(&gvb); | |
765 | break; | |
766 | default: | |
767 | return SR_ERR_NA; | |
768 | } | |
769 | ||
770 | return SR_OK; | |
771 | } | |
772 | ||
773 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
774 | { | |
775 | struct dev_context *devc; | |
776 | struct sr_serial_dev_inst *serial; | |
777 | ||
778 | if (sdi->status != SR_ST_ACTIVE) | |
779 | return SR_ERR_DEV_CLOSED; | |
780 | ||
781 | devc = sdi->priv; | |
782 | ||
783 | devc->acq_running = TRUE; | |
784 | ||
785 | serial = sdi->conn; | |
786 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
787 | motech_lps_30x_receive_data, (void *)sdi); | |
788 | std_session_send_df_header(sdi, LOG_PREFIX); | |
789 | ||
790 | sr_sw_limits_acquisition_start(&devc->limits); | |
791 | ||
792 | devc->acq_req = AQ_NONE; | |
793 | /* Do not start polling device here, the read function will do it in 50 ms. */ | |
794 | ||
795 | return SR_OK; | |
796 | } | |
797 | ||
798 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
799 | { | |
800 | return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close, | |
801 | sdi->conn, LOG_PREFIX); | |
802 | } | |
803 | ||
804 | SR_PRIV struct sr_dev_driver motech_lps_301_driver_info = { | |
805 | .name = "motech-lps-301", | |
806 | .longname = "Motech LPS-301", | |
807 | .api_version = 1, | |
808 | .init = std_init, | |
809 | .cleanup = std_cleanup, | |
810 | .scan = scan_lps301, | |
811 | .dev_list = std_dev_list, | |
812 | .dev_clear = dev_clear_lps301, | |
813 | .config_get = config_get, | |
814 | .config_set = config_set, | |
815 | .config_list = config_list, | |
816 | .dev_open = std_serial_dev_open, | |
817 | .dev_close = std_serial_dev_close, | |
818 | .dev_acquisition_start = dev_acquisition_start, | |
819 | .dev_acquisition_stop = dev_acquisition_stop, | |
820 | .context = NULL, | |
821 | }; |