+static const uint32_t scanopts[] = {
+ SR_CONF_CONN,
+ SR_CONF_SERIALCOMM,
+ SR_CONF_MODBUSADDR,
+};
+
+static const uint32_t drvopts[] = {
+ SR_CONF_POWER_SUPPLY,
+};
+
+static const uint32_t devopts[] = {
+ SR_CONF_CONTINUOUS,
+ SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_VOLTAGE | SR_CONF_GET,
+ SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_CURRENT | SR_CONF_GET,
+ SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_REGULATION | SR_CONF_GET,
+ SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE | SR_CONF_GET,
+ SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE | SR_CONF_GET,
+ SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD | SR_CONF_GET | SR_CONF_SET,
+};
+
+/* Model ID, model name, max current/voltage/power, current/voltage digits. */
+static const struct rdtech_dps_model supported_models[] = {
+ { MODEL_DPS, 3005, "DPS3005", 5, 30, 160, 3, 2 },
+ { MODEL_DPS, 5005, "DPS5005", 5, 50, 250, 3, 2 },
+ { MODEL_DPS, 5205, "DPH5005", 5, 50, 250, 3, 2 },
+ { MODEL_DPS, 5015, "DPS5015", 15, 50, 750, 2, 2 },
+ { MODEL_DPS, 5020, "DPS5020", 20, 50, 1000, 2, 2 },
+ { MODEL_DPS, 8005, "DPS8005", 5, 80, 408, 3, 2 },
+ /* All RD specs taken from the 2020.12.2 instruction manual. */
+ { MODEL_RD , 6006, "RD6006" , 6, 60, 360, 3, 2 },
+ { MODEL_RD , 6012, "RD6012" , 12, 60, 720, 2, 2 },
+ { MODEL_RD , 6018, "RD6018" , 18, 60, 1080, 2, 2 },
+};
+
+static struct sr_dev_driver rdtech_dps_driver_info;
+static struct sr_dev_driver rdtech_rd_driver_info;
+
+static struct sr_dev_inst *probe_device(struct sr_modbus_dev_inst *modbus,
+ enum rdtech_dps_model_type model_type)
+{
+ static const char *type_prefix[] = {
+ [MODEL_DPS] = "DPS",
+ [MODEL_RD] = "RD",
+ };
+
+ uint16_t id, version;
+ uint32_t serno;
+ int ret;
+ const struct rdtech_dps_model *model, *supported;
+ size_t i;
+ struct sr_dev_inst *sdi;
+ struct dev_context *devc;
+
+ ret = rdtech_dps_get_model_version(modbus,
+ model_type, &id, &version, &serno);
+ sr_dbg("probe: ret %d, type %s, model %u, vers %u, snr %u.",
+ ret, type_prefix[model_type], id, version, serno);
+ if (ret != SR_OK)
+ return NULL;
+ model = NULL;
+ for (i = 0; i < ARRAY_SIZE(supported_models); i++) {
+ supported = &supported_models[i];
+ if (model_type != supported->model_type)
+ continue;
+ if (id != supported->id)
+ continue;
+ model = supported;
+ break;
+ }
+ if (!model) {
+ sr_err("Unknown model: %s%u.", type_prefix[model_type], id);
+ return NULL;
+ }
+
+ sdi = g_malloc0(sizeof(*sdi));
+ sdi->status = SR_ST_INACTIVE;
+ sdi->vendor = g_strdup("RDTech");
+ switch (model_type) {
+ case MODEL_DPS:
+ sdi->model = g_strdup(model->name);
+ sdi->version = g_strdup_printf("v%u", version);
+ sdi->driver = &rdtech_dps_driver_info;
+ break;
+ case MODEL_RD:
+ sdi->model = g_strdup(model->name);
+ sdi->version = g_strdup_printf("v%u.%u",
+ version / 100, version % 100);
+ if (serno)
+ sdi->serial_num = g_strdup_printf("%u", serno);
+ sdi->driver = &rdtech_rd_driver_info;
+ break;
+ default:
+ sr_err("Programming error, unhandled DPS/DPH/RD device type.");
+ g_free(sdi->vendor);
+ g_free(sdi);
+ return NULL;
+ }
+ sdi->conn = modbus;
+ sdi->inst_type = SR_INST_MODBUS;
+
+ sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "V");
+ sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "I");
+ sr_channel_new(sdi, 2, SR_CHANNEL_ANALOG, TRUE, "P");
+
+ devc = g_malloc0(sizeof(*devc));
+ sr_sw_limits_init(&devc->limits);
+ devc->model = model;
+ devc->current_multiplier = pow(10.0, model->current_digits);
+ devc->voltage_multiplier = pow(10.0, model->voltage_digits);
+
+ sdi->priv = devc;
+
+ return sdi;
+}
+
+static struct sr_dev_inst *probe_device_dps(struct sr_modbus_dev_inst *modbus)
+{
+ return probe_device(modbus, MODEL_DPS);
+}
+
+static struct sr_dev_inst *probe_device_rd(struct sr_modbus_dev_inst *modbus)
+{
+ return probe_device(modbus, MODEL_RD);
+}
+
+static int config_compare(gconstpointer a, gconstpointer b)