_sample_rate("Hz", this),
_updating_sample_rate(false),
_updating_sample_count(false),
+ _sample_count_supported(false),
_icon_red(":/icons/status-red.svg"),
_icon_green(":/icons/status-green.svg"),
_icon_grey(":/icons/status-grey.svg"),
{
sr_dev_inst *const sdi = get_selected_device();
GVariant *gvar;
- uint64_t samplecount;
+ uint64_t samplecount = 0;
assert(sdi);
- if (sr_config_get(sdi->driver, sdi, NULL,
- SR_CONF_LIMIT_SAMPLES, &gvar) != SR_OK)
- {
- _sample_count.show_none();
- }
- else
- {
+ if (_sample_count_supported)
_sample_count.show_min_max_step(0, UINT64_MAX, 1);
+ else
+ _sample_count.show_none();
+ if (sr_config_get(sdi->driver, sdi, NULL,
+ SR_CONF_LIMIT_SAMPLES, &gvar) == SR_OK)
+ {
samplecount = g_variant_get_uint64(gvar);
g_variant_unref(gvar);
-
- _updating_sample_count = true;
- _sample_count.set_value(samplecount);
- _updating_sample_count = false;
}
+
+ _updating_sample_count = true;
+ _sample_count.set_value(samplecount);
+ _updating_sample_count = false;
}
void SamplingBar::commit_sample_count()
void SamplingBar::on_device_selected()
{
+ GVariant *gvar;
+
using namespace pv::popups;
if (_updating_device_selector)
Probes *const probes = new Probes(_session, this);
_probes_button.set_popup(probes);
+ // Update supported options.
+ _sample_count_supported = false;
+
+ if (sr_config_list(sdi->driver, sdi, NULL,
+ SR_CONF_DEVICE_OPTIONS, &gvar) == SR_OK)
+ {
+ gsize num_opts;
+ const int *const options = (const int32_t *)g_variant_get_fixed_array(
+ gvar, &num_opts, sizeof(int32_t));
+ for (unsigned int i = 0; i < num_opts; i++)
+ {
+ switch (options[i]) {
+ case SR_CONF_LIMIT_SAMPLES:
+ _sample_count_supported = true;
+ break;
+ case SR_CONF_LIMIT_FRAMES:
+ sr_config_set(sdi, NULL, SR_CONF_LIMIT_FRAMES,
+ g_variant_new_uint64(1));
+ break;
+ }
+ }
+ }
+
// Update sweep timing widgets.
update_sample_count_selector();
update_sample_rate_selector();
- if (_sample_count.value() == 0)
+ if (_sample_count_supported && _sample_count.value() == 0) {
_sample_count.set_value(DefaultRecordLength);
+ commit_sample_count();
+ }
}
void SamplingBar::on_sample_count_changed()