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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 | static int init_lps301(struct sr_dev_driver *di, struct sr_context *sr_ctx) | |
137 | { | |
138 | return std_init(sr_ctx, di, LOG_PREFIX); | |
139 | } | |
140 | ||
141 | /** Send command to device with va_list. | |
142 | */ | |
143 | SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char *fmt, va_list args) | |
144 | { | |
145 | int retc; | |
146 | char auxfmt[LINELEN_MAX]; | |
147 | char buf[LINELEN_MAX]; | |
148 | ||
149 | snprintf(auxfmt, sizeof(auxfmt), "%s\r\n", fmt); | |
150 | vsnprintf(buf, sizeof(buf), auxfmt, args); | |
151 | ||
152 | sr_spew("lps_send_va: \"%s\"", buf); | |
153 | ||
154 | retc = serial_write_blocking(serial, buf, strlen(buf), | |
155 | serial_timeout(serial, strlen(buf))); | |
156 | ||
157 | if (retc < 0) | |
158 | return SR_ERR; | |
159 | ||
160 | return SR_OK; | |
161 | } | |
162 | ||
163 | /** Send command to device. | |
164 | */ | |
165 | SR_PRIV int lps_send_req(struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
166 | { | |
167 | int retc; | |
168 | va_list args; | |
169 | ||
170 | va_start(args, fmt); | |
171 | retc = lps_send_va(serial, fmt, args); | |
172 | va_end(args); | |
173 | ||
174 | return retc; | |
175 | } | |
176 | ||
177 | /** Send command and consume simple OK reply. */ | |
178 | SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
179 | { | |
180 | int retc; | |
181 | va_list args; | |
182 | char buf[LINELEN_MAX]; | |
183 | char *bufptr; | |
184 | int buflen; | |
185 | ||
186 | /* Send command */ | |
187 | va_start(args, fmt); | |
188 | retc = lps_send_va(serial, fmt, args); | |
189 | va_end(args); | |
190 | ||
191 | if (retc != SR_OK) | |
192 | return SR_ERR; | |
193 | ||
194 | /* Read reply */ | |
195 | buf[0] = '\0'; | |
196 | bufptr = buf; | |
197 | buflen = sizeof(buf); | |
198 | retc = lps_read_reply(serial, &bufptr, &buflen); | |
199 | if ((retc == SR_OK) && (buflen == 0)) | |
200 | return SR_OK; | |
201 | ||
202 | return SR_ERR; | |
203 | } | |
204 | ||
205 | /** Send command and read reply string. | |
206 | * @param reply Pointer to buffer of size LINELEN_MAX. Will be NUL-terminated. | |
207 | */ | |
208 | SR_PRIV int lps_cmd_reply(char *reply, struct sr_serial_dev_inst *serial, const char *fmt, ...) | |
209 | { | |
210 | int retc; | |
211 | va_list args; | |
212 | char buf[LINELEN_MAX]; | |
213 | char *bufptr; | |
214 | int buflen; | |
215 | ||
216 | reply[0] = '\0'; | |
217 | ||
218 | /* Send command */ | |
219 | va_start(args, fmt); | |
220 | retc = lps_send_va(serial, fmt, args); | |
221 | va_end(args); | |
222 | ||
223 | if (retc != SR_OK) | |
224 | return SR_ERR; | |
225 | ||
226 | /* Read reply */ | |
227 | buf[0] = '\0'; | |
228 | bufptr = buf; | |
229 | buflen = sizeof(buf); | |
230 | retc = lps_read_reply(serial, &bufptr, &buflen); | |
231 | if ((retc == SR_OK) && (buflen > 0)) { | |
232 | strcpy(reply, buf); | |
233 | return SR_OK; | |
234 | } | |
235 | ||
236 | return SR_ERR; | |
237 | } | |
238 | ||
239 | /** Process integer value returned by STATUS command. */ | |
240 | SR_PRIV int lps_process_status(struct sr_dev_inst *sdi, int stat) | |
241 | { | |
242 | struct dev_context *devc; | |
243 | int tracking_mode; | |
244 | ||
245 | devc = sdi->priv; | |
246 | ||
247 | sr_spew("Status: %d", stat); | |
248 | devc->channel_status[0].cc_mode = (stat & 0x01) != 0; | |
249 | sr_spew("Channel 1 %s mode", devc->channel_status[0].cc_mode?"CC":"CV"); | |
250 | if (devc->model->num_channels > 1) { | |
251 | devc->channel_status[1].cc_mode = (stat & 0x02) != 0; | |
252 | sr_spew("Channel 2 %s mode", devc->channel_status[1].cc_mode?"CC":"CV"); | |
253 | ||
254 | tracking_mode = (stat & 0x0c) >> 2; | |
255 | switch (tracking_mode) { | |
256 | case 0: devc->tracking_mode = 0; | |
257 | break; | |
258 | case 2: devc->tracking_mode = 1; | |
259 | break; | |
260 | case 3: devc->tracking_mode = 2; | |
261 | break; | |
262 | default: | |
263 | sr_err("Illegal channel tracking mode %d!", tracking_mode); | |
264 | devc->tracking_mode = 0; | |
265 | break; | |
266 | } | |
267 | ||
268 | sr_spew("Channel tracking: %d", devc->tracking_mode); | |
269 | } | |
270 | devc->channel_status[0].output_enabled = devc->channel_status[1].output_enabled = stat&0x040?TRUE:FALSE; | |
271 | sr_spew("Channel 1%s output: %s", devc->model->num_channels > 1?"+2":"", devc->channel_status[0].output_enabled?"ON":"OFF"); | |
272 | if (devc->model->num_channels > 2) { | |
273 | devc->channel_status[2].output_enabled = stat&0x010?TRUE:FALSE; | |
274 | devc->channel_status[2].output_voltage_last = stat&0x020?3.3:5; | |
275 | sr_spew("Channel 3 output: %s, U=%02f V, overload=%d", | |
276 | devc->channel_status[2].output_enabled?"ON":"OFF", | |
277 | devc->channel_status[2].output_voltage_last, | |
278 | stat&0x080?1:0); | |
279 | } | |
280 | sr_spew("Fan=%d, beep=%d, CC output compensated=%d", stat&0x0100?1:0, stat&0x0200?1:0, stat&0x0400?1:0); | |
281 | ||
282 | return SR_OK; | |
283 | } | |
284 | ||
285 | /** Send STATUS commend and process status string. */ | |
286 | SR_PRIV int lps_query_status(struct sr_dev_inst *sdi) | |
287 | { | |
288 | char buf[LINELEN_MAX]; | |
289 | int stat, ret; | |
290 | struct dev_context *devc; | |
291 | ||
292 | devc = sdi->priv; | |
293 | ||
294 | devc->req_sent_at = g_get_real_time(); | |
295 | ||
296 | if ((ret = lps_cmd_reply(buf, sdi->conn, "STATUS")) < 0) { | |
297 | sr_err("%s: Failed to read status: %s.", __func__, | |
298 | sr_strerror(ret)); | |
299 | return SR_ERR; | |
300 | } | |
301 | ||
302 | if (sr_atoi(buf, &stat) != SR_OK) | |
303 | return SR_ERR; | |
304 | ||
305 | return lps_process_status(sdi, stat); | |
306 | } | |
307 | ||
308 | static gint64 calc_timeout_ms(gint64 start_us) | |
309 | { | |
310 | gint64 result = REQ_TIMEOUT_MS - ((g_get_real_time() - start_us) / 1000); | |
311 | ||
312 | if (result < 0) | |
313 | return 0; | |
314 | ||
315 | return result; | |
316 | } | |
317 | ||
318 | /** Read message into buf until "OK" received. | |
319 | * @retval SR_OK Msg received; buf and buflen contain result, if any except OK. | |
320 | * @retval SR_ERR Error, including timeout. | |
321 | */ | |
322 | SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen) | |
323 | { | |
324 | int retries; | |
325 | char buf2[LINELEN_MAX]; | |
326 | char *buf2ptr; | |
327 | int buf2len; | |
328 | gint64 timeout_start; | |
329 | ||
330 | *buf[0] = '\0'; | |
331 | ||
332 | /* Read one line. It is either a data message or "OK". */ | |
333 | timeout_start = g_get_real_time(); | |
334 | buf2len = *buflen; | |
335 | /* Up to 5 tries because serial_readline() will consume only one CR or LF per | |
336 | * call, but device sends up to 4 in a row. */ | |
337 | for (retries = 0; retries < 5; retries++) { | |
338 | *buflen = buf2len; | |
339 | if (serial_readline(serial, buf, buflen, calc_timeout_ms(timeout_start)) != SR_OK) | |
340 | return SR_ERR; | |
341 | if (!strcmp(*buf, "OK")) { /* We got an OK! */ | |
342 | *buf[0] = '\0'; | |
343 | *buflen = 0; | |
344 | return SR_OK; | |
345 | } | |
346 | if (*buflen > 0) /* We got a msg! */ | |
347 | break; | |
348 | } | |
349 | ||
350 | /* A data msg is in buf (possibly ERROR), need to consume "OK". */ | |
351 | buf2[0] = '\0'; | |
352 | buf2ptr = buf2; | |
353 | for (retries = 0; retries < 5; retries++) { | |
354 | buf2len = sizeof(buf2); | |
355 | if (serial_readline(serial, &buf2ptr, &buf2len, calc_timeout_ms(timeout_start)) != SR_OK) | |
356 | return SR_ERR; | |
357 | ||
358 | if (!strcmp(buf2ptr, "OK")) { /* We got an OK! */ | |
359 | if (!strcmp(*buf, "ERROR")) { /* OK came after msg ERROR! */ | |
360 | sr_spew("ERROR found!"); | |
361 | *buf[0] = '\0'; | |
362 | *buflen = 0; | |
363 | return SR_ERR; | |
364 | } | |
365 | return SR_OK; | |
366 | } | |
367 | } | |
368 | ||
369 | return SR_ERR; /* Timeout! */ | |
370 | } | |
371 | ||
372 | /** Scan for LPS-300 series device. | |
373 | */ | |
374 | static GSList *do_scan(lps_modelid modelid, struct sr_dev_driver *drv, GSList *options) | |
375 | { | |
376 | struct sr_dev_inst *sdi; | |
377 | struct drv_context *drvc; | |
378 | struct dev_context *devc; | |
379 | struct sr_serial_dev_inst *serial; | |
380 | struct sr_channel *ch; | |
381 | struct sr_channel_group *cg; | |
382 | GSList *devices; | |
383 | const char *conn, *serialcomm; | |
384 | int cnt, ret; | |
385 | gchar buf[LINELEN_MAX]; | |
386 | gchar channel[10]; | |
387 | char *verstr; | |
388 | ||
389 | sdi = NULL; | |
390 | devc = NULL; | |
391 | conn = serialcomm = NULL; | |
392 | devices = NULL; | |
393 | ||
394 | drvc = drv->context; | |
395 | drvc->instances = NULL; | |
396 | ||
397 | sr_spew("scan() called!"); | |
398 | ||
399 | /* Process and check options. */ | |
400 | if (sr_serial_extract_options(options, &conn, &serialcomm) != SR_OK) | |
401 | return NULL; | |
402 | if (!serialcomm) | |
403 | serialcomm = SERIALCOMM; | |
404 | ||
405 | /* Init serial port. */ | |
406 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
407 | ||
408 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
409 | goto exit_err; | |
410 | ||
411 | /* Query and verify model string. */ | |
412 | serial_flush(serial); | |
413 | if (lps_cmd_reply(buf, serial, "MODEL") != SR_OK) | |
414 | return NULL; | |
415 | ||
416 | /* Check model string. */ | |
417 | if (strncmp(buf, "LPS-", 4)) { | |
418 | sr_spew("Unknown model code \"%s\"!", buf); | |
419 | return NULL; | |
420 | } | |
421 | ||
422 | /* Bug in device FW 1.17, model number is empty, so this can't work with this FW! */ | |
423 | if (modelid == LPS_UNKNOWN) { | |
424 | g_strstrip(buf); | |
425 | for (cnt = LPS_301; cnt <= LPS_305; cnt++) { | |
426 | if (!strcmp(buf, models[cnt].modelstr)) { | |
427 | modelid = cnt; | |
428 | break; | |
429 | } | |
430 | } | |
431 | if (modelid == LPS_UNKNOWN) { | |
432 | sr_err("Unable to detect model from model string '%s'!", buf); | |
433 | return NULL; | |
434 | } | |
435 | } | |
436 | ||
437 | /* Query version */ | |
438 | verstr = NULL; | |
439 | if ((ret = lps_cmd_reply(buf, serial, "VERSION")) == SR_OK) { | |
440 | if (strncmp(buf, "Ver-", 4)) { | |
441 | sr_spew("Version string %s not recognized.", buf); | |
442 | goto exit_err; | |
443 | } | |
444 | ||
445 | g_strstrip(buf); | |
446 | verstr = buf + 4; | |
447 | } | |
448 | else /* Bug in device FW 1.17: Querying version string fails while output is active. | |
449 | Therefore just print an error message, but do not exit with error. */ | |
450 | sr_err("Failed to query for hardware version: %s.", | |
451 | sr_strerror(ret)); | |
452 | ||
453 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
454 | sdi->status = SR_ST_INACTIVE; | |
455 | sdi->vendor = g_strdup(VENDOR_MOTECH); | |
456 | sdi->model = g_strdup(models[modelid].modelstr); | |
457 | sdi->version = g_strdup(verstr); | |
458 | sdi->driver = drv; | |
459 | sdi->inst_type = SR_INST_SERIAL; | |
460 | sdi->conn = serial; | |
461 | ||
462 | devc = g_malloc0(sizeof(struct dev_context)); | |
463 | sr_sw_limits_init(&devc->limits); | |
464 | devc->model = &models[modelid]; | |
465 | ||
466 | sdi->priv = devc; | |
467 | ||
468 | /* Setup channels and channel groups. */ | |
469 | for (cnt = 0; cnt < models[modelid].num_channels; cnt++) { | |
470 | snprintf(channel, sizeof(channel), "CH%d", cnt + 1); | |
471 | ch = sr_channel_new(sdi, cnt, SR_CHANNEL_ANALOG, TRUE, channel); | |
472 | ||
473 | devc->channel_status[cnt].info = g_slist_append(NULL, ch); | |
474 | ||
475 | cg = g_malloc(sizeof(struct sr_channel_group)); | |
476 | snprintf(channel, sizeof(channel), "CG%d", cnt+1); | |
477 | cg->name = g_strdup(channel); | |
478 | cg->priv = NULL; | |
479 | cg->channels = g_slist_append(NULL, ch); | |
480 | ||
481 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); | |
482 | } | |
483 | ||
484 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
485 | devices = g_slist_append(devices, sdi); | |
486 | ||
487 | /* Query status */ | |
488 | if (lps_query_status(sdi) != SR_OK) | |
489 | goto exit_err; | |
490 | ||
491 | serial_close(serial); | |
492 | if (!devices) | |
493 | sr_serial_dev_inst_free(serial); | |
494 | ||
495 | return devices; | |
496 | ||
497 | exit_err: | |
498 | sr_info("%s: Error!", __func__); | |
499 | ||
500 | if (serial) { | |
501 | serial_close(serial); | |
502 | sr_serial_dev_inst_free(serial); | |
503 | } | |
504 | g_free(devc); | |
505 | if (sdi) | |
506 | sr_dev_inst_free(sdi); | |
507 | ||
508 | return NULL; | |
509 | } | |
510 | ||
511 | /** Scan for LPS-301 device. */ | |
512 | static GSList *scan_lps301(struct sr_dev_driver *di, GSList *options) | |
513 | { | |
514 | return do_scan(LPS_301, di, options); | |
515 | } | |
516 | ||
517 | static void dev_clear_private(struct dev_context *devc) | |
518 | { | |
519 | int ch_idx; | |
520 | ||
521 | /* Free channel_status.info (list only, data owned by sdi). */ | |
522 | for (ch_idx = 0; ch_idx < devc->model->num_channels; ch_idx++) | |
523 | g_slist_free(devc->channel_status[ch_idx].info); | |
524 | } | |
525 | ||
526 | static int dev_clear_lps301(const struct sr_dev_driver *di) | |
527 | { | |
528 | return std_dev_clear(di, (std_dev_clear_callback)dev_clear_private); | |
529 | } | |
530 | ||
531 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
532 | const struct sr_channel_group *cg) | |
533 | { | |
534 | struct dev_context *devc; | |
535 | struct sr_channel *ch; | |
536 | int ch_idx; | |
537 | ||
538 | if (!sdi) | |
539 | return SR_ERR_ARG; | |
540 | ||
541 | devc = sdi->priv; | |
542 | ||
543 | if (!cg) { | |
544 | /* No channel group: global options. */ | |
545 | switch (key) { | |
546 | case SR_CONF_LIMIT_SAMPLES: | |
547 | case SR_CONF_LIMIT_MSEC: | |
548 | return sr_sw_limits_config_get(&devc->limits, key, data); | |
549 | case SR_CONF_CHANNEL_CONFIG: | |
550 | *data = g_variant_new_string(channel_modes[devc->tracking_mode]); | |
551 | break; | |
552 | default: | |
553 | return SR_ERR_NA; | |
554 | } | |
555 | } else { | |
556 | /* We only ever have one channel per channel group in this driver. */ | |
557 | ch = cg->channels->data; | |
558 | ch_idx = ch->index; | |
559 | switch (key) { | |
560 | case SR_CONF_VOLTAGE: | |
561 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_last); | |
562 | break; | |
563 | case SR_CONF_VOLTAGE_TARGET: | |
564 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_max); | |
565 | break; | |
566 | case SR_CONF_CURRENT: | |
567 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_last); | |
568 | break; | |
569 | case SR_CONF_CURRENT_LIMIT: | |
570 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_max); | |
571 | break; | |
572 | case SR_CONF_ENABLED: | |
573 | *data = g_variant_new_boolean(devc->channel_status[ch_idx].output_enabled); | |
574 | break; | |
575 | default: | |
576 | return SR_ERR_NA; | |
577 | } | |
578 | } | |
579 | ||
580 | return SR_OK; | |
581 | } | |
582 | ||
583 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
584 | const struct sr_channel_group *cg) | |
585 | { | |
586 | struct dev_context *devc; | |
587 | struct sr_channel *ch; | |
588 | gdouble dval; | |
589 | int ch_idx; | |
590 | const char *sval; | |
591 | gboolean bval; | |
592 | int idx; | |
593 | gboolean found; | |
594 | ||
595 | if (sdi->status != SR_ST_ACTIVE) | |
596 | return SR_ERR_DEV_CLOSED; | |
597 | ||
598 | devc = sdi->priv; | |
599 | ||
600 | /* Cannot change settings while acquisition active, would cause a mess with commands. | |
601 | * Changing this would be possible, but tricky. */ | |
602 | if (devc->acq_running) | |
603 | return SR_ERR_NA; | |
604 | ||
605 | if (!cg) { | |
606 | /* No channel group: global options. */ | |
607 | switch (key) { | |
608 | case SR_CONF_LIMIT_MSEC: | |
609 | case SR_CONF_LIMIT_SAMPLES: | |
610 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
611 | case SR_CONF_CHANNEL_CONFIG: | |
612 | sval = g_variant_get_string(data, NULL); | |
613 | found = FALSE; | |
614 | for (idx = 0; idx < (int)ARRAY_SIZE(channel_modes); idx++) { | |
615 | if (!strcmp(sval, channel_modes[idx])) { | |
616 | found = TRUE; | |
617 | if (devc->tracking_mode == idx) | |
618 | break; /* Nothing to do! */ | |
619 | devc->tracking_mode = idx; | |
620 | if (devc->model->modelid >= LPS_304) /* No use to set anything in the smaller models. */ | |
621 | return lps_cmd_ok(sdi->conn, "TRACK%1d", devc->tracking_mode); | |
622 | } | |
623 | if (devc->model->modelid <= LPS_303) /* Only first setting possible for smaller models. */ | |
624 | break; | |
625 | } | |
626 | if (!found) | |
627 | return SR_ERR_ARG; | |
628 | break; | |
629 | default: | |
630 | return SR_ERR_NA; | |
631 | } | |
632 | } else { | |
633 | /* Channel group specified: per-channel options. */ | |
634 | /* We only ever have one channel per channel group in this driver. */ | |
635 | ch = cg->channels->data; | |
636 | ch_idx = ch->index; | |
637 | ||
638 | switch (key) { | |
639 | case SR_CONF_VOLTAGE_TARGET: | |
640 | dval = g_variant_get_double(data); | |
641 | if (dval < 0 || dval > devc->model->channels[ch_idx].voltage[1]) | |
642 | return SR_ERR_ARG; | |
643 | if (ch_idx == 2) { | |
644 | if (devc->model->modelid < LPS_304) | |
645 | return SR_ERR_ARG; | |
646 | ||
647 | if (fabs(dval - 5.000) <= 0.001) | |
648 | dval = 5.0; | |
649 | else if ((devc->model->modelid >= LPS_305) && (fabs(dval - 3.300) <= 0.001)) | |
650 | dval = 3.3; | |
651 | else return SR_ERR_ARG; | |
652 | } | |
653 | ||
654 | devc->channel_status[ch_idx].output_voltage_max = dval; | |
655 | if (ch_idx == 2) | |
656 | return lps_cmd_ok(sdi->conn, "VDD%1.0f", trunc(dval)); | |
657 | else | |
658 | return lps_cmd_ok(sdi->conn, "VSET%d %05.3f", ch_idx+1, dval); | |
659 | break; | |
660 | case SR_CONF_CURRENT_LIMIT: | |
661 | dval = g_variant_get_double(data); | |
662 | if (dval < 0 || dval > devc->model->channels[ch_idx].current[1]) | |
663 | return SR_ERR_ARG; | |
664 | if (ch_idx == 2) /* No current setting for CH3. */ | |
665 | return SR_ERR_NA; | |
666 | devc->channel_status[ch_idx].output_current_max = dval; | |
667 | return lps_cmd_ok(sdi->conn, "ISET%d %05.4f", ch_idx+1, dval); | |
668 | break; | |
669 | case SR_CONF_ENABLED: | |
670 | bval = g_variant_get_boolean(data); | |
671 | if (bval == devc->channel_status[ch_idx].output_enabled) /* Nothing to do. */ | |
672 | break; | |
673 | devc->channel_status[ch_idx].output_enabled = bval; | |
674 | if (ch_idx != 2) { /* Channels 1,2 can be set only together. */ | |
675 | devc->channel_status[ch_idx^1].output_enabled = bval; | |
676 | return lps_cmd_ok(sdi->conn, "OUT%1d", (int)bval); | |
677 | } else { /* Channel 3: No command to disable output, set voltage to 0 instead. */ | |
678 | if (bval) | |
679 | return lps_cmd_ok(sdi->conn, "VDD%1.0f", devc->channel_status[ch_idx].output_voltage_max); | |
680 | else | |
681 | return lps_cmd_ok(sdi->conn, "VDD0"); | |
682 | } | |
683 | break; | |
684 | default: | |
685 | return SR_ERR_NA; | |
686 | } | |
687 | } | |
688 | ||
689 | return SR_OK; | |
690 | } | |
691 | ||
692 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
693 | const struct sr_channel_group *cg) | |
694 | { | |
695 | struct dev_context *devc; | |
696 | struct sr_channel *ch; | |
697 | int ch_idx, i; | |
698 | GVariant *gvar; | |
699 | GVariantBuilder gvb; | |
700 | ||
701 | /* Driver options, no device instance necessary. */ | |
702 | switch (key) { | |
703 | case SR_CONF_SCAN_OPTIONS: | |
704 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
705 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
706 | return SR_OK; | |
707 | case SR_CONF_DEVICE_OPTIONS: | |
708 | if (sdi != NULL) | |
709 | break; | |
710 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
711 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
712 | return SR_OK; | |
713 | default: | |
714 | if (!sdi) | |
715 | return SR_ERR_ARG; | |
716 | devc = sdi->priv; | |
717 | break; | |
718 | } | |
719 | ||
720 | /* Device options, independent from channel groups. */ | |
721 | if (!cg) { | |
722 | switch (key) { | |
723 | case SR_CONF_DEVICE_OPTIONS: | |
724 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
725 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
726 | return SR_OK; | |
727 | case SR_CONF_CHANNEL_CONFIG: | |
728 | if (devc->model->modelid <= LPS_303) { | |
729 | /* The 1-channel models. */ | |
730 | *data = g_variant_new_strv(channel_modes, 1); | |
731 | } else { | |
732 | /* The other models support all modes. */ | |
733 | *data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes)); | |
734 | } | |
735 | return SR_OK; | |
736 | default: | |
737 | return SR_ERR_NA; | |
738 | } | |
739 | } | |
740 | ||
741 | /* Device options, depending on channel groups. */ | |
742 | ch = cg->channels->data; | |
743 | ch_idx = ch->index; | |
744 | switch (key) { | |
745 | case SR_CONF_DEVICE_OPTIONS: | |
746 | if ((ch_idx == 0) || (ch_idx == 1)) /* CH1, CH2 */ | |
747 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
748 | devopts_ch12, ARRAY_SIZE(devopts_ch12), sizeof(uint32_t)); | |
749 | else /* Must be CH3 */ | |
750 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
751 | devopts_ch3, ARRAY_SIZE(devopts_ch3), sizeof(uint32_t)); | |
752 | break; | |
753 | case SR_CONF_VOLTAGE_TARGET: | |
754 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
755 | /* Min, max, step. */ | |
756 | for (i = 0; i < 3; i++) { | |
757 | gvar = g_variant_new_double(devc->model->channels[ch_idx].voltage[i]); | |
758 | g_variant_builder_add_value(&gvb, gvar); | |
759 | } | |
760 | *data = g_variant_builder_end(&gvb); | |
761 | break; | |
762 | case SR_CONF_CURRENT_LIMIT: | |
763 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
764 | /* Min, max, step. */ | |
765 | for (i = 0; i < 3; i++) { | |
766 | gvar = g_variant_new_double(devc->model->channels[ch_idx].current[i]); | |
767 | g_variant_builder_add_value(&gvb, gvar); | |
768 | } | |
769 | *data = g_variant_builder_end(&gvb); | |
770 | break; | |
771 | default: | |
772 | return SR_ERR_NA; | |
773 | } | |
774 | ||
775 | return SR_OK; | |
776 | } | |
777 | ||
778 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
779 | { | |
780 | struct dev_context *devc; | |
781 | struct sr_serial_dev_inst *serial; | |
782 | ||
783 | if (sdi->status != SR_ST_ACTIVE) | |
784 | return SR_ERR_DEV_CLOSED; | |
785 | ||
786 | devc = sdi->priv; | |
787 | ||
788 | devc->acq_running = TRUE; | |
789 | ||
790 | serial = sdi->conn; | |
791 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
792 | motech_lps_30x_receive_data, (void *)sdi); | |
793 | std_session_send_df_header(sdi, LOG_PREFIX); | |
794 | ||
795 | sr_sw_limits_acquisition_start(&devc->limits); | |
796 | ||
797 | devc->acq_req = AQ_NONE; | |
798 | /* Do not start polling device here, the read function will do it in 50 ms. */ | |
799 | ||
800 | return SR_OK; | |
801 | } | |
802 | ||
803 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
804 | { | |
805 | return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close, | |
806 | sdi->conn, LOG_PREFIX); | |
807 | } | |
808 | ||
809 | SR_PRIV struct sr_dev_driver motech_lps_301_driver_info = { | |
810 | .name = "motech-lps-301", | |
811 | .longname = "Motech LPS-301", | |
812 | .api_version = 1, | |
813 | .init = init_lps301, | |
814 | .cleanup = std_cleanup, | |
815 | .scan = scan_lps301, | |
816 | .dev_list = std_dev_list, | |
817 | .dev_clear = dev_clear_lps301, | |
818 | .config_get = config_get, | |
819 | .config_set = config_set, | |
820 | .config_list = config_list, | |
821 | .dev_open = std_serial_dev_open, | |
822 | .dev_close = std_serial_dev_close, | |
823 | .dev_acquisition_start = dev_acquisition_start, | |
824 | .dev_acquisition_stop = dev_acquisition_stop, | |
825 | .context = NULL, | |
826 | }; |