+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_probe_group *probe_group)
+{
+ struct dev_context *devc;
+ GVariant *gvar, *grange[2];
+ GVariantBuilder gvb;
+ int num_channels, i;
+
+ (void)probe_group;
+
+ switch (key) {
+ case SR_CONF_SCAN_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
+ break;
+ case SR_CONF_DEVICE_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
+ break;
+ case SR_CONF_SAMPLERATE:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
+ gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
+ ARRAY_SIZE(samplerates), sizeof(uint64_t));
+ g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_TRIGGER_TYPE:
+ *data = g_variant_new_string(TRIGGER_TYPE);
+ break;
+ case SR_CONF_PATTERN_MODE:
+ *data = g_variant_new_strv(patterns, ARRAY_SIZE(patterns));
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ if (!sdi)
+ return SR_ERR_ARG;
+ devc = sdi->priv;
+ if (devc->flag_reg & FLAG_RLE)
+ return SR_ERR_NA;
+ if (devc->max_samples == 0)
+ /* Device didn't specify sample memory size in metadata. */
+ return SR_ERR_NA;
+ /*
+ * Channel groups are turned off if no probes in that group are
+ * enabled, making more room for samples for the enabled group.
+ */
+ ols_configure_probes(sdi);
+ num_channels = 0;
+ for (i = 0; i < 4; i++) {
+ if (devc->probe_mask & (0xff << (i * 8)))
+ num_channels++;
+ }
+ grange[0] = g_variant_new_uint64(MIN_NUM_SAMPLES);
+ grange[1] = g_variant_new_uint64(devc->max_samples / num_channels);
+ *data = g_variant_new_tuple(grange, 2);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
+}
+
+static int dev_acquisition_start(const struct sr_dev_inst *sdi,