2 * This file is part of the libsigrok project.
4 * Copyright (C) 2012 Martin Ling <martin-git@earth.li>
5 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
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.
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.
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/>.
26 #include "libsigrok.h"
27 #include "libsigrok-internal.h"
30 #define NUM_TIMEBASE 12
33 static const int32_t hwopts[] = {
37 static const int32_t hwcaps[] = {
40 SR_CONF_TRIGGER_SOURCE,
41 SR_CONF_TRIGGER_SLOPE,
42 SR_CONF_HORIZ_TRIGGERPOS,
49 static const uint64_t timebases[][2] = {
87 static const uint64_t vdivs[][2] = {
104 static const char *trigger_sources[] = {
127 static const char *coupling[] = {
133 static const char *supported_models[] = {
140 SR_PRIV struct sr_dev_driver rigol_ds1xx2_driver_info;
141 static struct sr_dev_driver *di = &rigol_ds1xx2_driver_info;
143 static void clear_helper(void *priv)
145 struct dev_context *devc;
149 g_free(devc->coupling[0]);
150 g_free(devc->coupling[1]);
151 g_free(devc->trigger_source);
152 g_free(devc->trigger_slope);
155 static int dev_clear(void)
157 return std_dev_clear(di, clear_helper);
160 static int set_cfg(const struct sr_dev_inst *sdi, const char *format, ...)
165 va_start(args, format);
166 vsnprintf(buf, 255, format, args);
168 if (rigol_ds1xx2_send(sdi, buf) != SR_OK)
171 /* When setting a bunch of parameters in a row, the DS1052E scrambles
172 * some of them unless there is at least 100ms delay in between. */
173 sr_spew("delay %dms", 100);
179 static int init(struct sr_context *sr_ctx)
181 return std_init(sr_ctx, di, LOG_PREFIX);
184 static int probe_port(const char *port, GSList **devices)
186 struct dev_context *devc;
187 struct sr_dev_inst *sdi;
188 struct sr_serial_dev_inst *serial;
189 struct sr_probe *probe;
192 gboolean matched, has_digital;
193 const char *manufacturer, *model, *version;
195 gchar **tokens, *channel_name;
198 if (!(serial = sr_serial_dev_inst_new(port, NULL)))
199 return SR_ERR_MALLOC;
201 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
203 len = serial_write(serial, "*IDN?", 5);
204 len = serial_read(serial, buf, sizeof(buf));
205 if (serial_close(serial) != SR_OK)
208 sr_serial_dev_inst_free(serial);
214 tokens = g_strsplit(buf, ",", 0);
215 sr_dbg("response: %s [%s]", port, buf);
217 for (num_tokens = 0; tokens[num_tokens] != NULL; num_tokens++);
219 if (num_tokens < 4) {
224 manufacturer = tokens[0];
228 if (strcmp(manufacturer, "Rigol Technologies")) {
233 matched = has_digital = FALSE;
234 for (i = 0; i < ARRAY_SIZE(supported_models); i++) {
235 if (!strcmp(model, supported_models[i])) {
237 has_digital = g_str_has_suffix(model, "D");
242 if (!matched || !(sdi = sr_dev_inst_new(0, SR_ST_ACTIVE,
243 manufacturer, model, version))) {
250 if (!(sdi->conn = sr_serial_dev_inst_new(port, NULL)))
251 return SR_ERR_MALLOC;
253 sdi->inst_type = SR_INST_SERIAL;
255 if (!(devc = g_try_malloc0(sizeof(struct dev_context))))
256 return SR_ERR_MALLOC;
257 devc->limit_frames = 0;
258 devc->has_digital = has_digital;
260 for (i = 0; i < 2; i++) {
261 if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE,
262 i == 0 ? "CH1" : "CH2")))
263 return SR_ERR_MALLOC;
264 sdi->probes = g_slist_append(sdi->probes, probe);
267 if (devc->has_digital) {
268 for (i = 0; i < 16; i++) {
269 if (!(channel_name = g_strdup_printf("D%d", i)))
270 return SR_ERR_MALLOC;
271 probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, channel_name);
272 g_free(channel_name);
274 return SR_ERR_MALLOC;
275 sdi->probes = g_slist_append(sdi->probes, probe);
280 *devices = g_slist_append(NULL, sdi);
285 static GSList *scan(GSList *options)
287 struct drv_context *drvc;
288 struct sr_config *src;
292 const gchar *dev_name;
297 for (l = options; l; l = l->next) {
299 if (src->key == SR_CONF_CONN) {
300 port = (char *)g_variant_get_string(src->data, NULL);
307 if (probe_port(port, &devices) == SR_ERR_MALLOC)
310 if (!(dir = g_dir_open("/sys/class/usbmisc/", 0, NULL)))
311 if (!(dir = g_dir_open("/sys/class/usb/", 0, NULL)))
313 while ((dev_name = g_dir_read_name(dir))) {
314 if (strncmp(dev_name, "usbtmc", 6))
316 port = g_strconcat("/dev/", dev_name, NULL);
317 ret = probe_port(port, &devices);
319 if (ret == SR_ERR_MALLOC) {
327 /* Tack a copy of the newly found devices onto the driver list. */
328 l = g_slist_copy(devices);
329 drvc->instances = g_slist_concat(drvc->instances, l);
334 static GSList *dev_list(void)
336 return ((struct drv_context *)(di->priv))->instances;
339 static int dev_open(struct sr_dev_inst *sdi)
342 if (serial_open(sdi->conn, SERIAL_RDWR) != SR_OK)
345 if (rigol_ds1xx2_get_dev_cfg(sdi) != SR_OK)
348 sdi->status = SR_ST_ACTIVE;
353 static int dev_close(struct sr_dev_inst *sdi)
355 struct sr_serial_dev_inst *serial;
358 if (serial && serial->fd != -1) {
359 serial_close(serial);
360 sdi->status = SR_ST_INACTIVE;
366 static int cleanup(void)
371 static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi)
377 case SR_CONF_NUM_TIMEBASE:
378 *data = g_variant_new_int32(NUM_TIMEBASE);
380 case SR_CONF_NUM_VDIV:
381 *data = g_variant_new_int32(NUM_VDIV);
390 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
392 struct dev_context *devc;
393 uint64_t tmp_u64, p, q;
401 if (sdi->status != SR_ST_ACTIVE)
402 return SR_ERR_DEV_CLOSED;
406 case SR_CONF_LIMIT_FRAMES:
407 devc->limit_frames = g_variant_get_uint64(data);
409 case SR_CONF_TRIGGER_SLOPE:
410 tmp_u64 = g_variant_get_uint64(data);
411 if (tmp_u64 != 0 && tmp_u64 != 1)
413 g_free(devc->trigger_slope);
414 devc->trigger_slope = g_strdup(tmp_u64 ? "POS" : "NEG");
415 ret = set_cfg(sdi, ":TRIG:EDGE:SLOP %s", devc->trigger_slope);
417 case SR_CONF_HORIZ_TRIGGERPOS:
418 t_dbl = g_variant_get_double(data);
419 if (t_dbl < 0.0 || t_dbl > 1.0)
421 devc->horiz_triggerpos = t_dbl;
422 /* We have the trigger offset as a percentage of the frame, but
423 * need to express this in seconds. */
424 t_dbl = -(devc->horiz_triggerpos - 0.5) * devc->timebase * NUM_TIMEBASE;
425 ret = set_cfg(sdi, ":TIM:OFFS %.6f", t_dbl);
427 case SR_CONF_TIMEBASE:
428 g_variant_get(data, "(tt)", &p, &q);
429 for (i = 0; i < ARRAY_SIZE(timebases); i++) {
430 if (timebases[i][0] == p && timebases[i][1] == q) {
431 devc->timebase = (float)p / q;
432 ret = set_cfg(sdi, ":TIM:SCAL %.9f", devc->timebase);
436 if (i == ARRAY_SIZE(timebases))
439 case SR_CONF_TRIGGER_SOURCE:
440 tmp_str = g_variant_get_string(data, NULL);
441 for (i = 0; i < ARRAY_SIZE(trigger_sources); i++) {
442 if (!strcmp(trigger_sources[i], tmp_str)) {
443 g_free(devc->trigger_source);
444 devc->trigger_source = g_strdup(trigger_sources[i]);
445 if (!strcmp(devc->trigger_source, "AC Line"))
447 else if (!strcmp(devc->trigger_source, "CH1"))
449 else if (!strcmp(devc->trigger_source, "CH2"))
452 tmp_str = (char *)devc->trigger_source;
453 ret = set_cfg(sdi, ":TRIG:EDGE:SOUR %s", tmp_str);
457 if (i == ARRAY_SIZE(trigger_sources))
461 g_variant_get(data, "(tt)", &p, &q);
462 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
463 if (vdivs[i][0] != p || vdivs[i][1] != q)
465 devc->vdiv[0] = devc->vdiv[1] = (float)p / q;
466 set_cfg(sdi, ":CHAN1:SCAL %.3f", devc->vdiv[0]);
467 ret = set_cfg(sdi, ":CHAN2:SCAL %.3f", devc->vdiv[1]);
470 if (i == ARRAY_SIZE(vdivs))
473 case SR_CONF_COUPLING:
474 /* TODO: Not supporting coupling per channel yet. */
475 tmp_str = g_variant_get_string(data, NULL);
476 for (i = 0; i < ARRAY_SIZE(coupling); i++) {
477 if (!strcmp(tmp_str, coupling[i])) {
478 g_free(devc->coupling[0]);
479 g_free(devc->coupling[1]);
480 devc->coupling[0] = g_strdup(coupling[i]);
481 devc->coupling[1] = g_strdup(coupling[i]);
482 set_cfg(sdi, ":CHAN1:COUP %s", devc->coupling[0]);
483 ret = set_cfg(sdi, ":CHAN2:COUP %s", devc->coupling[1]);
487 if (i == ARRAY_SIZE(coupling))
498 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
500 GVariant *tuple, *rational[2];
503 struct dev_context *devc;
506 case SR_CONF_SCAN_OPTIONS:
507 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
508 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
510 case SR_CONF_DEVICE_OPTIONS:
511 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
512 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
514 case SR_CONF_COUPLING:
515 *data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling));
518 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
519 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
520 rational[0] = g_variant_new_uint64(vdivs[i][0]);
521 rational[1] = g_variant_new_uint64(vdivs[i][1]);
522 tuple = g_variant_new_tuple(rational, 2);
523 g_variant_builder_add_value(&gvb, tuple);
525 *data = g_variant_builder_end(&gvb);
527 case SR_CONF_TIMEBASE:
528 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
529 for (i = 0; i < ARRAY_SIZE(timebases); i++) {
530 rational[0] = g_variant_new_uint64(timebases[i][0]);
531 rational[1] = g_variant_new_uint64(timebases[i][1]);
532 tuple = g_variant_new_tuple(rational, 2);
533 g_variant_builder_add_value(&gvb, tuple);
535 *data = g_variant_builder_end(&gvb);
537 case SR_CONF_TRIGGER_SOURCE:
538 if (!sdi || !sdi->priv)
539 /* Can't know this until we have the exact model. */
542 *data = g_variant_new_strv(trigger_sources,
543 devc->has_digital ? ARRAY_SIZE(trigger_sources) : 4);
552 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
554 struct sr_serial_dev_inst *serial;
555 struct dev_context *devc;
556 struct sr_probe *probe;
560 if (sdi->status != SR_ST_ACTIVE)
561 return SR_ERR_DEV_CLOSED;
566 for (l = sdi->probes; l; l = l->next) {
568 sr_dbg("handling probe %s", probe->name);
569 if (probe->type == SR_PROBE_ANALOG) {
571 devc->enabled_analog_probes = g_slist_append(
572 devc->enabled_analog_probes, probe);
573 if (probe->enabled != devc->analog_channels[probe->index]) {
574 /* Enabled channel is currently disabled, or vice versa. */
575 sprintf(cmd, ":CHAN%d:DISP %s", probe->index + 1,
576 probe->enabled ? "ON" : "OFF");
577 if (rigol_ds1xx2_send(sdi, cmd) != SR_OK)
580 } else if (probe->type == SR_PROBE_LOGIC) {
582 devc->enabled_digital_probes = g_slist_append(
583 devc->enabled_digital_probes, probe);
584 if (probe->enabled != devc->digital_channels[probe->index]) {
585 /* Enabled channel is currently disabled, or vice versa. */
586 sprintf(cmd, ":DIG%d:TURN %s", probe->index,
587 probe->enabled ? "ON" : "OFF");
588 if (rigol_ds1xx2_send(sdi, cmd) != SR_OK)
593 if (!devc->enabled_analog_probes && !devc->enabled_digital_probes)
596 sr_source_add(serial->fd, G_IO_IN, 50, rigol_ds1xx2_receive, (void *)sdi);
598 /* Send header packet to the session bus. */
599 std_session_send_df_header(cb_data, LOG_PREFIX);
601 /* Fetch the first frame. */
602 if (devc->enabled_analog_probes) {
603 devc->channel_frame = devc->enabled_analog_probes->data;
604 if (rigol_ds1xx2_send(sdi, ":WAV:DATA? CHAN%d",
605 devc->channel_frame->index + 1) != SR_OK)
608 devc->channel_frame = devc->enabled_digital_probes->data;
609 if (rigol_ds1xx2_send(sdi, ":WAV:DATA? DIG") != SR_OK)
613 devc->num_frame_bytes = 0;
618 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
620 struct dev_context *devc;
621 struct sr_serial_dev_inst *serial;
627 if (sdi->status != SR_ST_ACTIVE) {
628 sr_err("Device inactive, can't stop acquisition.");
632 g_slist_free(devc->enabled_analog_probes);
633 g_slist_free(devc->enabled_digital_probes);
634 devc->enabled_analog_probes = NULL;
635 devc->enabled_digital_probes = NULL;
637 sr_source_remove(serial->fd);
642 SR_PRIV struct sr_dev_driver rigol_ds1xx2_driver_info = {
643 .name = "rigol-ds1xx2",
644 .longname = "Rigol DS1xx2",
649 .dev_list = dev_list,
650 .dev_clear = dev_clear,
651 .config_get = config_get,
652 .config_set = config_set,
653 .config_list = config_list,
654 .dev_open = dev_open,
655 .dev_close = dev_close,
656 .dev_acquisition_start = dev_acquisition_start,
657 .dev_acquisition_stop = dev_acquisition_stop,