2 * This file is part of the libsigrok project.
4 * Copyright (C) 2012 Martin Ling <martin-git@earth.li>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "libsigrok.h"
26 #include "libsigrok-internal.h"
29 #define NUM_TIMEBASE 12
32 static const int32_t hwcaps[] = {
34 SR_CONF_LIMIT_SAMPLES,
36 SR_CONF_TRIGGER_SOURCE,
37 SR_CONF_TRIGGER_SLOPE,
38 SR_CONF_HORIZ_TRIGGERPOS,
45 static const uint64_t timebases[][2] = {
83 static const uint64_t vdivs[][2] = {
100 static const char *trigger_sources[] = {
107 static const char *coupling[] = {
113 static const char *supported_models[] = {
120 SR_PRIV struct sr_dev_driver rigol_ds1xx2_driver_info;
121 static struct sr_dev_driver *di = &rigol_ds1xx2_driver_info;
123 /* Properly close and free all devices. */
124 static int clear_instances(void)
126 struct sr_dev_inst *sdi;
127 struct drv_context *drvc;
128 struct dev_context *devc;
131 if (!(drvc = di->priv))
134 for (l = drvc->instances; l; l = l->next) {
135 if (!(sdi = l->data))
137 if (!(devc = sdi->priv))
140 g_free(devc->device);
141 g_slist_free(devc->enabled_probes);
144 sr_dev_inst_free(sdi);
147 g_slist_free(drvc->instances);
148 drvc->instances = NULL;
153 static int hw_init(struct sr_context *sr_ctx)
155 return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
158 static GSList *hw_scan(GSList *options)
160 struct drv_context *drvc;
161 struct sr_dev_inst *sdi;
162 struct dev_context *devc;
163 struct sr_probe *probe;
166 const gchar *dev_name;
167 const gchar *dev_dir = "/dev/";
168 const gchar *prefix = "usbtmc";
170 const gchar *idn_query = "*IDN?";
172 int len, num_tokens, fd;
173 const gchar *delimiter = ",";
175 const char *manufacturer, *model, *version;
176 gboolean matched = FALSE;
182 drvc->instances = NULL;
186 dir = g_dir_open("/sys/class/usb/", 0, NULL);
191 while ((dev_name = g_dir_read_name(dir)) != NULL) {
192 if (strncmp(dev_name, prefix, strlen(prefix)))
195 device = g_strconcat(dev_dir, dev_name, NULL);
197 fd = open(device, O_RDWR);
198 len = write(fd, idn_query, strlen(idn_query));
199 len = read(fd, buf, sizeof(buf));
207 tokens = g_strsplit(buf, delimiter, 0);
209 sr_dbg("response: %s %d [%s]", device, len, buf);
211 for (num_tokens = 0; tokens[num_tokens] != NULL; num_tokens++);
213 if (num_tokens < 4) {
219 manufacturer = tokens[0];
223 if (strcmp(manufacturer, "Rigol Technologies")) {
229 for (i = 0; i < ARRAY_SIZE(supported_models); i++) {
230 if (!strcmp(model, supported_models[i])) {
236 if (!matched || !(sdi = sr_dev_inst_new(0, SR_ST_ACTIVE,
237 manufacturer, model, version))) {
245 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
246 sr_err("Device context malloc failed.");
251 devc->device = device;
256 for (i = 0; i < 2; i++) {
257 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE,
258 i == 0 ? "CH1" : "CH2")))
260 sdi->probes = g_slist_append(sdi->probes, probe);
263 drvc->instances = g_slist_append(drvc->instances, sdi);
264 devices = g_slist_append(devices, sdi);
272 static GSList *hw_dev_list(void)
274 return ((struct drv_context *)(di->priv))->instances;
277 static int hw_dev_open(struct sr_dev_inst *sdi)
279 struct dev_context *devc;
284 if ((fd = open(devc->device, O_RDWR)) == -1)
294 static int hw_dev_close(struct sr_dev_inst *sdi)
296 struct dev_context *devc;
305 static int hw_cleanup(void)
312 static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi)
318 case SR_CONF_NUM_TIMEBASE:
319 *data = g_variant_new_int32(NUM_TIMEBASE);
321 case SR_CONF_NUM_VDIV:
322 *data = g_variant_new_int32(NUM_VDIV);
331 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
333 struct dev_context *devc;
334 uint64_t tmp_u64, p, q;
338 const char *tmp_str, *channel;
342 if (sdi->status != SR_ST_ACTIVE) {
343 sr_err("Device inactive, can't set config options.");
349 case SR_CONF_LIMIT_FRAMES:
350 devc->limit_frames = g_variant_get_uint64(data);
352 case SR_CONF_TRIGGER_SLOPE:
353 tmp_u64 = g_variant_get_uint64(data);
354 rigol_ds1xx2_send_data(devc->fd, ":TRIG:EDGE:SLOP %s\n",
355 tmp_u64 ? "POS" : "NEG");
357 case SR_CONF_HORIZ_TRIGGERPOS:
358 tmp_double = g_variant_get_double(data);
359 rigol_ds1xx2_send_data(devc->fd, ":TIM:OFFS %.9f\n", tmp_double);
361 case SR_CONF_TIMEBASE:
362 g_variant_get(data, "(tt)", &p, &q);
364 for (i = 0; i < ARRAY_SIZE(timebases); i++) {
365 if (timebases[i][0] == p && timebases[i][1] == q) {
371 rigol_ds1xx2_send_data(devc->fd, ":TIM:SCAL %.9f\n",
372 (float)timebases[i][0] / timebases[i][1]);
374 case SR_CONF_TRIGGER_SOURCE:
375 tmp_str = g_variant_get_string(data, NULL);
376 if (!strcmp(tmp_str, "CH1"))
378 else if (!strcmp(tmp_str, "CH2"))
380 else if (!strcmp(tmp_str, "EXT"))
382 else if (!strcmp(tmp_str, "AC Line"))
388 rigol_ds1xx2_send_data(devc->fd, ":TRIG:EDGE:SOUR %s\n", channel);
391 g_variant_get(data, "(tt)", &p, &q);
393 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
394 if (vdivs[i][0] != p || vdivs[i][1] != q)
396 devc->scale = (float)vdivs[i][0] / vdivs[i][1];
397 rigol_ds1xx2_send_data(devc->fd, ":CHAN0:SCAL %.3f\n",
399 rigol_ds1xx2_send_data(devc->fd, ":CHAN1:SCAL %.3f\n",
403 if (i == ARRAY_SIZE(vdivs))
406 case SR_CONF_COUPLING:
407 /* TODO: Not supporting coupling per channel yet. */
408 tmp_str = g_variant_get_string(data, NULL);
409 for (i = 0; i < ARRAY_SIZE(coupling); i++) {
410 if (!strcmp(tmp_str, coupling[i])) {
411 rigol_ds1xx2_send_data(devc->fd, ":CHAN0:COUP %s\n",
413 rigol_ds1xx2_send_data(devc->fd, ":CHAN1:COUP %s\n",
418 if (i == ARRAY_SIZE(coupling))
422 sr_err("Unknown hardware capability: %d.", id);
430 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
432 GVariant *tuple, *rational[2];
439 case SR_CONF_DEVICE_OPTIONS:
440 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
441 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
443 case SR_CONF_COUPLING:
444 *data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling));
447 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
448 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
449 rational[0] = g_variant_new_uint64(vdivs[i][0]);
450 rational[1] = g_variant_new_uint64(vdivs[i][1]);
451 tuple = g_variant_new_tuple(rational, 2);
452 g_variant_builder_add_value(&gvb, tuple);
454 *data = g_variant_builder_end(&gvb);
456 case SR_CONF_TIMEBASE:
457 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
458 for (i = 0; i < ARRAY_SIZE(timebases); i++) {
459 rational[0] = g_variant_new_uint64(timebases[i][0]);
460 rational[1] = g_variant_new_uint64(timebases[i][1]);
461 tuple = g_variant_new_tuple(rational, 2);
462 g_variant_builder_add_value(&gvb, tuple);
464 *data = g_variant_builder_end(&gvb);
466 case SR_CONF_TRIGGER_SOURCE:
467 *data = g_variant_new_strv(trigger_sources,
468 ARRAY_SIZE(trigger_sources));
477 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
480 struct dev_context *devc;
488 devc->num_frames = devc->num_frame_samples = 0;
490 sr_source_add(devc->fd, G_IO_IN, 50, rigol_ds1xx2_receive_data, (void *)sdi);
492 /* Send header packet to the session bus. */
493 std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
495 /* Hardcoded to CH1 only. */
496 devc->enabled_probes = g_slist_append(NULL, sdi->probes->data);
497 rigol_ds1xx2_send_data(devc->fd, ":CHAN1:SCAL?\n");
498 len = read(devc->fd, buf, sizeof(buf));
500 devc->scale = atof(buf);
501 sr_dbg("Scale is %.3f.", devc->scale);
502 rigol_ds1xx2_send_data(devc->fd, ":CHAN1:OFFS?\n");
503 len = read(devc->fd, buf, sizeof(buf));
505 devc->offset = atof(buf);
506 sr_dbg("Offset is %.6f.", devc->offset);
507 rigol_ds1xx2_send_data(devc->fd, ":WAV:DATA?\n");
512 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
514 struct dev_context *devc;
520 if (sdi->status != SR_ST_ACTIVE) {
521 sr_err("Device inactive, can't stop acquisition.");
525 sr_source_remove(devc->fd);
530 SR_PRIV struct sr_dev_driver rigol_ds1xx2_driver_info = {
531 .name = "rigol-ds1xx2",
532 .longname = "Rigol DS1xx2",
535 .cleanup = hw_cleanup,
537 .dev_list = hw_dev_list,
538 .dev_clear = clear_instances,
539 .config_get = config_get,
540 .config_set = config_set,
541 .config_list = config_list,
542 .dev_open = hw_dev_open,
543 .dev_close = hw_dev_close,
544 .dev_acquisition_start = hw_dev_acquisition_start,
545 .dev_acquisition_stop = hw_dev_acquisition_stop,