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Change sr_dev_inst_new() to take no parameters.
[libsigrok.git] / src / hardware / motech-lps-30x / api.c
CommitLineData
41b7bd01
MH		 1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz>
1c3d002b 5 * Copyright (C) 2014 Bert Vermeulen <bert@biot.com> (code from atten-pps3xxx)
41b7bd01
MH		 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
1c3d002b
MH		 21/** @file
22 * <em>Motech LPS-30x series</em> power supply driver
23 * @internal
24 */
25
26#include <ctype.h>
27#include <errno.h>
28#include <math.h>
29#include <string.h>
30
41b7bd01
MH		 31#include "protocol.h"
32
1c3d002b 33/* Forward declarations */
41b7bd01 34SR_PRIV struct sr_dev_driver motech_lps_301_driver_info;
1c3d002b
MH		 35SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen);
36SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char* fmt, va_list args);
37SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char* fmt, ...);
38SR_PRIV int lps_cmd_reply(char* reply, struct sr_serial_dev_inst *serial, const char* fmt, ...);
39SR_PRIV int lps_query_status(struct sr_dev_inst* sdi);
40
41/* Serial communication parameters */
42#define SERIALCOMM "2400/8n1/dtr=1/rts=1/flow=0"
43
44#define VENDOR_MOTECH "Motech"
45
46/** Driver scanning options. */
a0e0bb41 47static const uint32_t scanopts[] = {
1c3d002b
MH		 48 SR_CONF_CONN,
49 SR_CONF_SERIALCOMM,
50};
51
52/** Hardware capabilities generic. */
f254bc4b 53static const uint32_t devopts[] = {
1c3d002b
MH		 54 /* Device class */
55 SR_CONF_POWER_SUPPLY,
56 /* Aquisition modes. */
1c3d002b 57 SR_CONF_CONTINUOUS,
5827f61b
BV		 58 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
59 SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
1c3d002b 60 /* Device configuration */
5827f61b 61 SR_CONF_OUTPUT_CHANNEL_CONFIG | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
1c3d002b
MH		 62};
63
64/** Hardware capabilities channel 1, 2. */
f254bc4b 65static const uint32_t devopts_ch12[] = {
5827f61b 66 SR_CONF_OUTPUT_VOLTAGE | SR_CONF_GET,
ca95e90f 67 SR_CONF_OUTPUT_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
5827f61b 68 SR_CONF_OUTPUT_CURRENT | SR_CONF_GET,
ca95e90f 69 SR_CONF_OUTPUT_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
5827f61b 70 SR_CONF_OUTPUT_ENABLED | SR_CONF_GET | SR_CONF_SET,
1c3d002b
MH		 71};
72
73/** Hardware capabilities channel 3. (LPS-304/305 only). */
f254bc4b 74static const uint32_t devopts_ch3[] = {
5827f61b
BV		 75 SR_CONF_OUTPUT_VOLTAGE | SR_CONF_GET,
76 SR_CONF_OUTPUT_ENABLED | SR_CONF_GET | SR_CONF_SET,
1c3d002b
MH		 77};
78
79static const char *channel_modes[] = {
80 "Independent",
81 "Track1",
82 "Track2",
83};
84
85static struct lps_modelspec models[] = {
86 { LPS_UNKNOWN, "Dummy", 0,
87 {
88
89 }
90 },
91 { LPS_301, "LPS-301", 1,
92 {
93 /* Channel 1 */
94 { { 0, 32, 0.01 }, { 0.005, 2, 0.001 } },
95 },
96 },
97 { LPS_302, "LPS-302", 1,
98 {
99 /* Channel 1 */
100 { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
101 },
102 },
103 { LPS_303, "LPS-303", 1,
104 {
105 /* Channel 1 */
106 { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
107 },
108 },
109 { LPS_304, "LPS-304", 3,
110 {
111 /* Channel 1 */
112 { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
113 /* Channel 2 */
114 { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
115 /* Channel 3 */
116 { { 5, 5, 0.0 }, { 0.005, 3, 0.001 } },
117 },
118 },
119 { LPS_305, "LPS-305", 3,
120 {
121 /* Channel 1 */
122 { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
123 /* Channel 2 */
124 { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
125 /* Channel 3 */
126 { { 3.3, 5, 1.7 }, { 0.005, 3, 0.001 } },
127 },
128 },
129};
41b7bd01 130
1c3d002b 131static int init_lps301(struct sr_context *sr_ctx)
41b7bd01 132{
1c3d002b 133 return std_init(sr_ctx, &motech_lps_301_driver_info, LOG_PREFIX);
41b7bd01
MH		 134}
135
1c3d002b
MH		 136/** Send command to device with va_list.
137 */
138SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char* fmt, va_list args)
41b7bd01 139{
1c3d002b
MH		 140 int retc;
141 char auxfmt[LINELEN_MAX];
142 char buf[LINELEN_MAX];
41b7bd01 143
1c3d002b
MH		 144 snprintf(auxfmt, sizeof(auxfmt), "%s\r\n", fmt);
145 vsnprintf(buf, sizeof(buf), auxfmt, args);
41b7bd01 146
1c3d002b 147 sr_spew("lps_send_va: \"%s\"", buf);
41b7bd01 148
eead2782 149 retc = serial_write_blocking(serial, buf, strlen(buf), 0);
41b7bd01 150
1c3d002b
MH		 151 if (retc < 0)
152 return SR_ERR;
153
154 return SR_OK;
41b7bd01
MH		 155}
156
1c3d002b
MH		 157/** Send command to device.
158 */
159SR_PRIV int lps_send_req(struct sr_serial_dev_inst *serial, const char* fmt, ...)
41b7bd01 160{
1c3d002b
MH		 161 int retc;
162 va_list args;
163
164 va_start(args, fmt);
165 retc = lps_send_va(serial, fmt, args);
166 va_end(args);
167
168 return retc;
41b7bd01
MH		 169}
170
1c3d002b
MH		 171/** Send command and consume simple OK reply. */
172SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char* fmt, ...)
41b7bd01 173{
1c3d002b
MH		 174 int retc;
175 va_list args;
176 char buf[LINELEN_MAX];
177 char* bufptr;
178 int buflen;
179
180 /* Send command */
181 va_start(args, fmt);
182 retc = lps_send_va(serial, fmt, args);
183 va_end(args);
184
185 if (retc != SR_OK)
186 return SR_ERR;
187
188 /* Read reply */
189 buf[0] = '\0';
190 bufptr = buf;
191 buflen = sizeof(buf);
192 retc = lps_read_reply(serial, &bufptr, &buflen);
193 if ((retc == SR_OK) && (buflen == 0))
194 return SR_OK;
195
196 return SR_ERR;
41b7bd01
MH		 197}
198
1c3d002b
MH		 199/** Send command and read reply string.
200 * \param reply Pointer to buffer of size LINELEN_MAX. Will be NUL-terminated.
201 */
202SR_PRIV int lps_cmd_reply(char* reply, struct sr_serial_dev_inst *serial, const char* fmt, ...)
41b7bd01 203{
1c3d002b
MH		 204 int retc;
205 va_list args;
206 char buf[LINELEN_MAX];
207 char* bufptr;
208 int buflen;
209
210 reply[0] = '\0';
211
212 /* Send command */
213 va_start(args, fmt);
214 retc = lps_send_va(serial, fmt, args);
215 va_end(args);
216
217 if (retc != SR_OK)
218 return SR_ERR;
219
220 /* Read reply */
221 buf[0] = '\0';
222 bufptr = buf;
223 buflen = sizeof(buf);
224 retc = lps_read_reply(serial, &bufptr, &buflen);
225 if ((retc == SR_OK) && (buflen > 0)) {
226 strcpy(reply, buf);
227 return SR_OK;
228 }
41b7bd01 229
1c3d002b
MH		 230 return SR_ERR;
231}
41b7bd01 232
1c3d002b
MH		 233/** Process integer value returned by STATUS command. */
234SR_PRIV int lps_process_status(struct sr_dev_inst* sdi, int stat)
235{
236 struct dev_context* devc;
237 int tracking_mode;
238
239 devc = (struct dev_context*)sdi->priv;
240
241 sr_spew("Status: %d", stat);
242 devc->channel_status[0].cc_mode = (stat & 0x01) != 0;
243 sr_spew("Channel 1 %s mode", devc->channel_status[0].cc_mode?"CC":"CV");
244 if (devc->model->num_channels > 1) {
245 devc->channel_status[1].cc_mode = (stat & 0x02) != 0;
246 sr_spew("Channel 2 %s mode", devc->channel_status[1].cc_mode?"CC":"CV");
247
248 tracking_mode = (stat & 0x0c) >> 2;
249 switch (tracking_mode) {
250 case 0: devc->tracking_mode = 0;
251 break;
252 case 2: devc->tracking_mode = 1;
253 break;
254 case 3: devc->tracking_mode = 2;
255 break;
256 default:
257 sr_err("Illegal channel tracking mode %d!", tracking_mode);
258 devc->tracking_mode = 0;
259 break;
260 }
261
262 sr_spew("Channel tracking: %d", devc->tracking_mode);
263 }
264 devc->channel_status[0].output_enabled = devc->channel_status[1].output_enabled = stat&0x040?TRUE:FALSE;
265 sr_spew("Channel 1%s output: %s", devc->model->num_channels > 1?"+2":"", devc->channel_status[0].output_enabled?"ON":"OFF");
266 if (devc->model->num_channels > 2) {
267 devc->channel_status[2].output_enabled = stat&0x010?TRUE:FALSE;
268 devc->channel_status[2].output_voltage_last = stat&0x020?3.3:5;
269 sr_spew("Channel 3 output: %s, U=%02f V, overload=%d",
270 devc->channel_status[2].output_enabled?"ON":"OFF",
271 devc->channel_status[2].output_voltage_last,
272 stat&0x080?1:0);
273 }
274 sr_spew("Fan=%d, beep=%d, CC output compensated=%d", stat&0x0100?1:0, stat&0x0200?1:0, stat&0x0400?1:0);
41b7bd01
MH		 275
276 return SR_OK;
277}
278
1c3d002b
MH		 279/** Send STATUS commend and process status string. */
280SR_PRIV int lps_query_status(struct sr_dev_inst* sdi)
41b7bd01 281{
1c3d002b
MH		 282 char buf[LINELEN_MAX];
283 int stat;
1c3d002b 284 struct dev_context* devc;
41b7bd01 285
1c3d002b 286 devc = (struct dev_context*)sdi->priv;
41b7bd01 287
1c3d002b 288 devc->req_sent_at = g_get_real_time();
41b7bd01 289
1c3d002b
MH		 290 if (lps_cmd_reply(buf, sdi->conn, "STATUS") < 0) {
291 sr_err("%s: Failed to read status: %d %s", __func__, errno, strerror(errno));
292 return SR_ERR;
293 }
294
1f7da0c2 295 if (sr_atoi(buf, &stat) != SR_OK)
1c3d002b
MH		 296 return SR_ERR;
297
298 return lps_process_status(sdi, stat);
41b7bd01
MH		 299}
300
1c3d002b 301static gint64 calc_timeout_ms(gint64 start_us)
41b7bd01 302{
1c3d002b 303 gint64 result = REQ_TIMEOUT_MS - ((g_get_real_time() - start_us) / 1000);
41b7bd01 304
1c3d002b
MH		 305 if (result < 0)
306 return 0;
41b7bd01 307
1c3d002b 308 return result;
41b7bd01
MH		 309}
310
1c3d002b
MH		 311/** Read message into buf until "OK" received.
312 * \retval SR_OK Msg received; buf and buflen contain result, if any except OK.
313 * \retval SR_ERR Error, including timeout.
314*/
315SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen)
41b7bd01 316{
1c3d002b
MH		 317 int retries;
318 char buf2[LINELEN_MAX];
319 char *buf2ptr;
320 int buf2len;
321 gint64 timeout_start;
322
323 *buf[0] = '\0';
324
325 /* Read one line. It is either a data message or "OK". */
326 timeout_start = g_get_real_time();
327 buf2len = *buflen;
328 /* Up to 5 tries because serial_readline() will consume only one CR or LF per
329 * call, but device sends up to 4 in a row. */
330 for (retries = 0; retries < 5; retries++) {
331 *buflen = buf2len;
332 if (serial_readline(serial, buf, buflen, calc_timeout_ms(timeout_start)) != SR_OK)
333 return SR_ERR;
334 if (!strcmp(*buf, "OK")) { /* We got an OK! */
335 *buf[0] = '\0';
336 *buflen = 0;
337 return SR_OK;
338 }
339 if (*buflen > 0) /* We got a msg! */
340 break;
341 }
41b7bd01 342
1c3d002b
MH		 343 /* A data msg is in buf (possibly ERROR), need to consume "OK". */
344 buf2[0] = '\0';
345 buf2ptr = buf2;
346 for (retries = 0; retries < 5; retries++) {
347 buf2len = sizeof(buf2);
348 if (serial_readline(serial, &buf2ptr, &buf2len, calc_timeout_ms(timeout_start)) != SR_OK)
349 return SR_ERR;
350
351 if (!strcmp(buf2ptr, "OK")) { /* We got an OK! */
352 if (!strcmp(*buf, "ERROR")) { /* OK came after msg ERROR! */
353 sr_spew("ERROR found!");
354 *buf[0] = '\0';
355 *buflen = 0;
356 return SR_ERR;
357 }
358 return SR_OK;
359 }
360 }
41b7bd01 361
1c3d002b
MH		 362 return SR_ERR; /* Timeout! */
363}
364
365/** Scan for LPS-300 series device.
366 */
1f7da0c2 367static GSList *do_scan(lps_modelid modelid, struct sr_dev_driver *drv, GSList *options)
1c3d002b
MH		 368{
369 struct sr_dev_inst *sdi;
370 struct drv_context *drvc;
371 struct dev_context *devc;
372 struct sr_serial_dev_inst *serial;
373 struct sr_channel *ch;
374 struct sr_channel_group *cg;
375 GSList *devices;
376 const char *conn, *serialcomm;
377 int cnt;
0af636be 378 gchar buf[LINELEN_MAX];
1c3d002b 379 gchar channel[10];
0af636be 380 char *verstr;
1c3d002b
MH		 381
382 sdi = NULL;
383 devc = NULL;
384 conn = serialcomm = NULL;
385 devices = NULL;
386
387 drvc = drv->priv;
388 drvc->instances = NULL;
389
390 sr_spew("scan() called!");
391
392 /* Process and check options. */
393 if (sr_serial_extract_options(options, &conn, &serialcomm) != SR_OK)
394 return NULL;
395 if (!serialcomm)
396 serialcomm = SERIALCOMM;
397
398 /* Init serial port. */
399 if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
400 return NULL;
401
5b980134 402 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
1c3d002b
MH		 403 goto exit_err;
404
405 /* Query and verify model string. */
406 serial_flush(serial);
407 if (lps_cmd_reply(buf, serial, "MODEL") != SR_OK)
408 return NULL;
409
410 /* Check model string. */
411 if (strncmp(buf, "LPS-", 4)) {
412 sr_spew("Unknown model code \"%s\"!", buf);
413 return NULL;
414 }
415
416 /* Bug in device FW 1.17, model number is empty, so this can't work with this FW! */
417 if (modelid == LPS_UNKNOWN) {
418 g_strstrip(buf);
419 for (cnt = LPS_301; cnt <= LPS_305; cnt++) {
420 if (!strcmp(buf, models[cnt].modelstr)) {
421 modelid = cnt;
422 break;
423 }
424 }
425 if (modelid == LPS_UNKNOWN) {
426 sr_err("Unable to detect model from model string '%s'!", buf);
427 return NULL;
428 }
41b7bd01
MH		 429 }
430
1c3d002b
MH		 431 /* Query version */
432 verstr = NULL;
433 if (lps_cmd_reply(buf, serial, "VERSION") == SR_OK) {
434 if (strncmp(buf, "Ver-", 4)) {
435 sr_spew("Version string %s not recognized.", buf);
436 goto exit_err;
437 }
438
439
440 g_strstrip(buf);
441 verstr = buf + 4;
442 }
443 else /* Bug in device FW 1.17: Quering 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: %d %s", errno, strerror(errno));
446
0af636be
UH		 447 sdi = sr_dev_inst_new();
448 sdi->status = SR_ST_INACTIVE;
449 sdi->vendor = g_strdup(VENDOR_MOTECH);
450 sdi->model = g_strdup(models[modelid].modelstr);
451 sdi->version = g_strdup(verstr);
1c3d002b
MH		 452 sdi->driver = drv;
453 sdi->inst_type = SR_INST_SERIAL;
454 sdi->conn = serial;
455
456 devc = g_malloc0(sizeof(struct dev_context));
457 devc->model = &models[modelid];
458 devc->limit_samples = 0;
459 devc->limit_msec = 0;
460 devc->num_samples = 0;
461 devc->elapsed_msec = g_timer_new();
462
463 sdi->priv = devc;
464
465 /* Setup channels and channel groups. */
466 for (cnt = 0; cnt < models[modelid].num_channels; cnt++) {
467 snprintf(channel, sizeof(channel), "CH%d", cnt + 1);
468 ch = sr_channel_new(cnt, SR_CHANNEL_ANALOG, TRUE, channel);
469 sdi->channels = g_slist_append(sdi->channels, ch);
470
471 devc->channel_status[cnt].info = g_slist_append(NULL, ch);
472
473 cg = g_malloc(sizeof(struct sr_channel_group));
474 snprintf(channel, sizeof(channel), "CG%d", cnt+1);
475 cg->name = g_strdup(channel);
476 cg->priv = NULL;
477 cg->channels = g_slist_append(NULL, ch);
478
479 sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
480 }
481
482 drvc->instances = g_slist_append(drvc->instances, sdi);
483 devices = g_slist_append(devices, sdi);
484
485 /* Query status */
486 if (lps_query_status(sdi) != SR_OK)
487 goto exit_err;
488
489 serial_close(serial);
490 if (!devices)
491 sr_serial_dev_inst_free(serial);
492
493 return devices;
494
495exit_err:
496 sr_info("%s: Error!", __func__);
497
498 if (serial) {
499 serial_close(serial);
500 sr_serial_dev_inst_free(serial);
501 }
502 if (devc)
503 g_free(devc);
504 if (sdi)
505 sr_dev_inst_free(sdi);
506
507 return NULL;
41b7bd01
MH		 508}
509
1c3d002b
MH		 510/** Scan for LPS-301 device. */
511static GSList *scan_lps301(GSList *options)
512{
1f7da0c2 513 return do_scan(LPS_301, &motech_lps_301_driver_info, options);
1c3d002b
MH		 514}
515
516static GSList *doDevList(struct sr_dev_driver *drv)
517{
518 return ((struct drv_context *)(drv->priv))->instances;
519}
520
521static GSList *dev_list_lps301(void)
522{
523 return doDevList(&motech_lps_301_driver_info);
524}
525
526static void dev_clear_private(struct dev_context* devc)
527{
528 int ch_idx;
529
530 /* Free channel_status.info (list only, data owned by sdi). */
531 for (ch_idx = 0; ch_idx < devc->model->num_channels; ch_idx++)
532 g_slist_free(devc->channel_status[ch_idx].info);
533
534 g_timer_destroy(devc->elapsed_msec);
535}
536
537static int dev_clear_lps301(void)
538{
539 return std_dev_clear(&motech_lps_301_driver_info, (std_dev_clear_callback)dev_clear_private);
540}
541
542static int cleanup(void)
543{
544 return dev_clear_lps301();
545}
546
584560f1 547static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
41b7bd01
MH		 548 const struct sr_channel_group *cg)
549{
1c3d002b
MH		 550 struct dev_context *devc;
551 struct sr_channel *ch;
552 int ch_idx;
553
554 if (!sdi)
555 return SR_ERR_ARG;
556
557 devc = sdi->priv;
558
559 if (!cg) {
560 /* No channel group: global options. */
561 switch (key) {
562 case SR_CONF_LIMIT_SAMPLES:
563 *data = g_variant_new_uint64(devc->limit_samples);
564 break;
565 case SR_CONF_LIMIT_MSEC:
566 *data = g_variant_new_uint64(devc->limit_msec);
567 break;
a1eaa9e0 568 case SR_CONF_OUTPUT_CHANNEL_CONFIG:
1c3d002b
MH		 569 *data = g_variant_new_string(channel_modes[devc->tracking_mode]);
570 break;
571 default:
572 return SR_ERR_NA;
573 }
574 } else {
575 /* We only ever have one channel per channel group in this driver. */
576 ch = cg->channels->data;
577 ch_idx = ch->index;
578 switch (key) {
579 case SR_CONF_OUTPUT_VOLTAGE:
580 *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_last);
581 break;
ca95e90f 582 case SR_CONF_OUTPUT_VOLTAGE_TARGET:
1c3d002b
MH		 583 *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_max);
584 break;
585 case SR_CONF_OUTPUT_CURRENT:
586 *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_last);
587 break;
ca95e90f 588 case SR_CONF_OUTPUT_CURRENT_LIMIT:
1c3d002b
MH		 589 *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_max);
590 break;
591 case SR_CONF_OUTPUT_ENABLED:
592 *data = g_variant_new_boolean(devc->channel_status[ch_idx].output_enabled);
593 break;
594 default:
595 return SR_ERR_NA;
596 }
597 }
41b7bd01 598
1c3d002b
MH		 599 return SR_OK;
600}
601
584560f1 602static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
1c3d002b
MH		 603 const struct sr_channel_group *cg)
604{
605 struct dev_context *devc;
606 struct sr_channel *ch;
607 gdouble dval;
608 int ch_idx;
609 const char *sval;
610 gboolean bval;
611 int idx;
612 gboolean found;
41b7bd01
MH		 613
614 if (sdi->status != SR_ST_ACTIVE)
615 return SR_ERR_DEV_CLOSED;
616
1c3d002b
MH		 617 devc = sdi->priv;
618
419bfb50 619 /* Cannot change settings while acquisition active, would cause a mess with commands.
1c3d002b
MH		 620 * Changing this would be possible, but tricky. */
621 if (devc->acq_running)
622 return SR_ERR_NA;
623
624 if (!cg) {
625 /* No channel group: global options. */
626 switch (key) {
627 case SR_CONF_LIMIT_MSEC:
628 if (g_variant_get_uint64(data) == 0) {
629 sr_err("LIMIT_MSEC can't be 0.");
630 return SR_ERR;
631 }
632 devc->limit_msec = g_variant_get_uint64(data);
633 sr_dbg("Setting time limit to %" PRIu64 "ms.",
634 devc->limit_msec);
635 break;
636 case SR_CONF_LIMIT_SAMPLES:
637 devc->limit_samples = g_variant_get_uint64(data);
638 sr_dbg("Setting sample limit to %" PRIu64 ".",
639 devc->limit_samples);
640 break;
a1eaa9e0 641 case SR_CONF_OUTPUT_CHANNEL_CONFIG:
1c3d002b
MH		 642 sval = g_variant_get_string(data, NULL);
643 found = FALSE;
644 for (idx = 0; idx < (int)ARRAY_SIZE(channel_modes); idx++)
645 {
646 if (!strcmp(sval, channel_modes[idx])) {
647 found = TRUE;
648 if (devc->tracking_mode == idx)
649 break; /* Nothing to do! */
650 devc->tracking_mode = idx;
651 if (devc->model->modelid >= LPS_304) /* No use to set anything in the smaller models. */
652 return lps_cmd_ok(sdi->conn, "TRACK%1d", devc->tracking_mode);
653 }
654 if (devc->model->modelid <= LPS_303) /* Only first setting possible for smaller models. */
655 break;
656 }
657 if (!found) {
658 return SR_ERR_ARG;
659 }
660 break;
661 default:
662 return SR_ERR_NA;
663 }
664 } else {
665 /* Channel group specified: per-channel options. */
666 /* We only ever have one channel per channel group in this driver. */
667 ch = cg->channels->data;
668 ch_idx = ch->index;
669
670 switch (key) {
ca95e90f 671 case SR_CONF_OUTPUT_VOLTAGE_TARGET:
1c3d002b
MH		 672 dval = g_variant_get_double(data);
673 if (dval < 0 || dval > devc->model->channels[ch_idx].voltage[1])
674 return SR_ERR_ARG;
675 if (ch_idx == 2) {
676 if (devc->model->modelid < LPS_304)
677 return SR_ERR_ARG;
678
679 if (fabs(dval - 5.000) <= 0.001)
680 dval = 5.0;
681 else if ((devc->model->modelid >= LPS_305) && (fabs(dval - 3.300) <= 0.001))
682 dval = 3.3;
683 else return SR_ERR_ARG;
684 }
685
686 devc->channel_status[ch_idx].output_voltage_max = dval;
687 if (ch_idx == 2)
688 return lps_cmd_ok(sdi->conn, "VDD%1.0f", trunc(dval));
689 else
690 return lps_cmd_ok(sdi->conn, "VSET%d %05.3f", ch_idx+1, dval);
691 break;
ca95e90f 692 case SR_CONF_OUTPUT_CURRENT_LIMIT:
1c3d002b
MH		 693 dval = g_variant_get_double(data);
694 if (dval < 0 || dval > devc->model->channels[ch_idx].current[1])
695 return SR_ERR_ARG;
696 if (ch_idx == 2) /* No current setting for CH3. */
697 return SR_ERR_NA;
698 devc->channel_status[ch_idx].output_current_max = dval;
699 return lps_cmd_ok(sdi->conn, "ISET%d %05.4f", ch_idx+1, dval);
700 break;
701 case SR_CONF_OUTPUT_ENABLED:
702 bval = g_variant_get_boolean(data);
703 if (bval == devc->channel_status[ch_idx].output_enabled) /* Nothing to do. */
704 break;
705 devc->channel_status[ch_idx].output_enabled = bval;
706 if (ch_idx != 2) { /* Channels 1,2 can be set only together. */
707 devc->channel_status[ch_idx^1].output_enabled = bval;
708 return lps_cmd_ok(sdi->conn, "OUT%1d", (int)bval);
709 } else { /* Channel 3: No command to disable output, set voltage to 0 instead. */
710 if (bval)
711 return lps_cmd_ok(sdi->conn, "VDD%1.0f", devc->channel_status[ch_idx].output_voltage_max);
712 else
713 return lps_cmd_ok(sdi->conn, "VDD0");
714 }
715 break;
716 default:
717 return SR_ERR_NA;
718 }
41b7bd01
MH		 719 }
720
1c3d002b 721 return SR_OK;
41b7bd01
MH		 722}
723
584560f1 724static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
41b7bd01
MH		 725 const struct sr_channel_group *cg)
726{
1c3d002b
MH		 727 struct dev_context *devc;
728 struct sr_channel *ch;
729 int ch_idx, i;
730 GVariant *gvar;
731 GVariantBuilder gvb;
41b7bd01 732
41b7bd01 733 (void)data;
41b7bd01 734
1c3d002b 735 /* Driver options, no device instance necessary. */
41b7bd01 736 switch (key) {
1c3d002b 737 case SR_CONF_SCAN_OPTIONS:
584560f1 738 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
a0e0bb41 739 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
1c3d002b
MH		 740 return SR_OK;
741 default:
742 if (sdi == NULL)
743 return SR_ERR_ARG;
744
745 devc = sdi->priv;
746 }
747
584560f1 748 /* Device options, independent from channel groups. */
1c3d002b
MH		 749 if (cg == NULL) {
750 switch (key) {
751 case SR_CONF_DEVICE_OPTIONS:
584560f1 752 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f254bc4b 753 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
1c3d002b 754 return SR_OK;
a1eaa9e0 755 case SR_CONF_OUTPUT_CHANNEL_CONFIG:
1c3d002b
MH		 756 if (devc->model->modelid <= LPS_303) {
757 /* The 1-channel models. */
758 *data = g_variant_new_strv(channel_modes, 1);
759 } else {
760 /* The other models support all modes. */
761 *data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
762 }
763 return SR_OK;
764 break;
765 default:
766 return SR_ERR_NA;
767 }
768 }
769
770 /* Device options, depending on channel groups. */
771 ch = cg->channels->data;
772 ch_idx = ch->index;
773 switch (key) {
774 case SR_CONF_DEVICE_OPTIONS:
775 if ((ch_idx == 0) || (ch_idx == 1)) /* CH1, CH2 */
584560f1 776 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f254bc4b 777 devopts_ch12, ARRAY_SIZE(devopts_ch12), sizeof(uint32_t));
1c3d002b 778 else /* Must be CH3 */
584560f1 779 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f254bc4b 780 devopts_ch3, ARRAY_SIZE(devopts_ch3), sizeof(uint32_t));
1c3d002b 781 break;
ca95e90f 782 case SR_CONF_OUTPUT_VOLTAGE_TARGET:
1c3d002b
MH		 783 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
784 /* Min, max, step. */
785 for (i = 0; i < 3; i++) {
786 gvar = g_variant_new_double(devc->model->channels[ch_idx].voltage[i]);
787 g_variant_builder_add_value(&gvb, gvar);
788 }
789 *data = g_variant_builder_end(&gvb);
790 break;
ca95e90f 791 case SR_CONF_OUTPUT_CURRENT_LIMIT:
1c3d002b
MH		 792 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
793 /* Min, max, step. */
794 for (i = 0; i < 3; i++) {
795 gvar = g_variant_new_double(devc->model->channels[ch_idx].current[i]);
796 g_variant_builder_add_value(&gvb, gvar);
797 }
798 *data = g_variant_builder_end(&gvb);
799 break;
41b7bd01
MH		 800 default:
801 return SR_ERR_NA;
802 }
803
1c3d002b 804 return SR_OK;
41b7bd01
MH		 805}
806
807static int dev_acquisition_start(const struct sr_dev_inst *sdi,
808 void *cb_data)
809{
1c3d002b
MH		 810 struct dev_context *devc;
811 struct sr_serial_dev_inst *serial;
41b7bd01
MH		 812
813 if (sdi->status != SR_ST_ACTIVE)
814 return SR_ERR_DEV_CLOSED;
815
1c3d002b
MH		 816 devc = sdi->priv;
817
818 devc->acq_running = TRUE;
819
820 serial = sdi->conn;
102f1239
BV		 821 serial_source_add(sdi->session, serial, G_IO_IN, 50,
822 motech_lps_30x_receive_data, (void *)sdi);
1c3d002b
MH		 823 std_session_send_df_header(cb_data, LOG_PREFIX);
824
825 /* Start timer, if required. */
826 if (devc->limit_msec)
827 g_timer_start(devc->elapsed_msec);
828
829 devc->acq_req = AQ_NONE;
830 /* Do not start polling device here, the read function will do it in 50 ms. */
41b7bd01
MH		 831
832 return SR_OK;
833}
834
835static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
836{
1c3d002b 837 struct dev_context *devc;
41b7bd01 838
1c3d002b
MH		 839 /* Stop timer, if required. */
840 if (sdi && (devc = sdi->priv) && devc->limit_msec)
841 g_timer_stop(devc->elapsed_msec);
41b7bd01 842
1c3d002b
MH		 843 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
844 sdi->conn, LOG_PREFIX);
41b7bd01
MH		 845}
846
847SR_PRIV struct sr_dev_driver motech_lps_301_driver_info = {
848 .name = "motech-lps-301",
849 .longname = "Motech LPS-301",
850 .api_version = 1,
1c3d002b 851 .init = init_lps301,
41b7bd01 852 .cleanup = cleanup,
1c3d002b
MH		 853 .scan = scan_lps301,
854 .dev_list = dev_list_lps301,
855 .dev_clear = dev_clear_lps301,
41b7bd01
MH		 856 .config_get = config_get,
857 .config_set = config_set,
858 .config_list = config_list,
1c3d002b
MH		 859 .dev_open = std_serial_dev_open,
860 .dev_close = std_serial_dev_close,
41b7bd01
MH		 861 .dev_acquisition_start = dev_acquisition_start,
862 .dev_acquisition_stop = dev_acquisition_stop,
863 .priv = NULL,
864};
Hardware access and backend lib