SR_CONF_CONN | SR_CONF_GET,
SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
+ SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
};
static const char *channel_names[] = {
/* Fill in channellist according to this device's profile. */
num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
for (j = 0; j < num_logic_channels; j++) {
- if (!(ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE,
- channel_names[j])))
- return NULL;
+ ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE,
+ channel_names[j]);
sdi->channels = g_slist_append(sdi->channels, ch);
}
case SR_CONF_SAMPLERATE:
*data = g_variant_new_uint64(devc->cur_samplerate);
break;
+ case SR_CONF_CAPTURE_RATIO:
+ *data = g_variant_new_uint64(devc->capture_ratio);
+ break;
default:
return SR_ERR_NA;
}
case SR_CONF_LIMIT_SAMPLES:
devc->limit_samples = g_variant_get_uint64(data);
break;
+ case SR_CONF_CAPTURE_RATIO:
+ devc->capture_ratio = g_variant_get_uint64(data);
+ if (devc->capture_ratio > 100) {
+ devc->capture_ratio = 0;
+ ret = SR_ERR;
+ } else
+ ret = SR_OK;
+ break;
default:
ret = SR_ERR_NA;
}
devc->empty_transfer_count = 0;
if ((trigger = sr_session_trigger_get(sdi->session))) {
- devc->stl = soft_trigger_logic_new(sdi, trigger);
+ int pre_trigger_samples = 0;
+ if (devc->limit_samples > 0)
+ pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100;
+ devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples);
+ if (devc->stl == NULL)
+ return SR_ERR_MALLOC;
devc->trigger_fired = FALSE;
} else
devc->trigger_fired = TRUE;