* This file is part of the libsigrok project.
*
* Copyright (C) 2018 James Churchill <pelrun@gmail.com>
+ * Copyright (C) 2019 Frank Stettner <frank-stettner@gmx.net>
+ * Copyright (C) 2021 Gerhard Sittig <gerhard.sittig@gmx.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*/
#include <config.h>
+
+#include <math.h>
+#include <string.h>
+
#include "protocol.h"
-static GSList *scan(struct sr_dev_driver *di, GSList *options)
+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[] = {
+ { 3005, "DPS3005", 5, 30, 160, 3, 2 },
+ { 5005, "DPS5005", 5, 50, 250, 3, 2 },
+ { 5205, "DPH5005", 5, 50, 250, 3, 2 },
+ { 5015, "DPS5015", 15, 50, 750, 2, 2 },
+ { 5020, "DPS5020", 20, 50, 1000, 2, 2 },
+ { 8005, "DPS8005", 5, 80, 408, 3, 2 },
+};
+
+static struct sr_dev_driver rdtech_dps_driver_info;
+
+static struct sr_dev_inst *probe_device(struct sr_modbus_dev_inst *modbus)
{
- struct drv_context *drvc;
- GSList *devices;
+ uint16_t id, version;
+ int ret;
+ const struct rdtech_dps_model *model;
+ size_t i;
+ struct sr_dev_inst *sdi;
+ struct dev_context *devc;
+
+ ret = rdtech_dps_get_model_version(modbus, &id, &version);
+ if (ret != SR_OK)
+ return NULL;
+ model = NULL;
+ for (i = 0; i < ARRAY_SIZE(supported_models); i++) {
+ if (id == supported_models[i].id) {
+ model = &supported_models[i];
+ break;
+ }
+ }
+ if (!model) {
+ sr_err("Unknown model: %u.", id);
+ return NULL;
+ }
- (void)options;
+ sdi = g_malloc0(sizeof(*sdi));
+ sdi->status = SR_ST_INACTIVE;
+ sdi->vendor = g_strdup("RDTech");
+ sdi->model = g_strdup(model->name);
+ sdi->version = g_strdup_printf("v%u", version);
+ sdi->conn = modbus;
+ sdi->driver = &rdtech_dps_driver_info;
+ sdi->inst_type = SR_INST_MODBUS;
- devices = NULL;
- drvc = di->context;
- drvc->instances = NULL;
+ 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");
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+ 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 int config_compare(gconstpointer a, gconstpointer b)
+{
+ const struct sr_config *ac = a, *bc = b;
+ return ac->key != bc->key;
+}
+
+static GSList *scan(struct sr_dev_driver *di, GSList *options)
+{
+ struct sr_config default_serialcomm = {
+ .key = SR_CONF_SERIALCOMM,
+ .data = g_variant_new_string("9600/8n1"),
+ };
+ struct sr_config default_modbusaddr = {
+ .key = SR_CONF_MODBUSADDR,
+ .data = g_variant_new_uint64(1),
+ };
+ GSList *opts, *devices;
+
+ opts = options;
+ if (!g_slist_find_custom(options, &default_serialcomm, config_compare))
+ opts = g_slist_prepend(opts, &default_serialcomm);
+ if (!g_slist_find_custom(options, &default_modbusaddr, config_compare))
+ opts = g_slist_prepend(opts, &default_modbusaddr);
+
+ devices = sr_modbus_scan(di->context, opts, probe_device);
+
+ while (opts != options)
+ opts = g_slist_delete_link(opts, opts);
+ g_variant_unref(default_serialcomm.data);
+ g_variant_unref(default_modbusaddr.data);
return devices;
}
static int dev_open(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ struct sr_modbus_dev_inst *modbus;
+ struct rdtech_dps_state state;
+ int ret;
+
+ modbus = sdi->conn;
+ if (sr_modbus_open(modbus) < 0)
+ return SR_ERR;
- /* TODO: get handle from sdi->conn and open it. */
+ memset(&state, 0, sizeof(state));
+ state.lock = TRUE;
+ state.mask |= STATE_LOCK;
+ ret = rdtech_dps_set_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
return SR_OK;
}
static int dev_close(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ struct sr_modbus_dev_inst *modbus;
+ struct rdtech_dps_state state;
- /* TODO: get handle from sdi->conn and close it. */
+ modbus = sdi->conn;
+ if (!modbus)
+ return SR_ERR_BUG;
- return SR_OK;
+ memset(&state, 0, sizeof(state));
+ state.lock = FALSE;
+ state.mask |= STATE_LOCK;
+ (void)rdtech_dps_set_state(sdi, &state);
+
+ return sr_modbus_close(modbus);
}
static int config_get(uint32_t key, GVariant **data,
const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
+ struct dev_context *devc;
+ struct rdtech_dps_state state;
int ret;
+ const char *cc_text;
- (void)sdi;
- (void)data;
(void)cg;
+ devc = sdi->priv;
+
ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_SAMPLES:
+ case SR_CONF_LIMIT_MSEC:
+ ret = sr_sw_limits_config_get(&devc->limits, key, data);
+ break;
+ case SR_CONF_ENABLED:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_OUTPUT_ENABLED))
+ return SR_ERR_DATA;
+ *data = g_variant_new_boolean(state.output_enabled);
+ break;
+ case SR_CONF_REGULATION:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_REGULATION_CC))
+ return SR_ERR_DATA;
+ cc_text = state.regulation_cc ? "CC" : "CV";
+ *data = g_variant_new_string(cc_text);
+ break;
+ case SR_CONF_VOLTAGE:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_VOLTAGE))
+ return SR_ERR_DATA;
+ *data = g_variant_new_double(state.voltage);
+ break;
+ case SR_CONF_VOLTAGE_TARGET:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_VOLTAGE_TARGET))
+ return SR_ERR_DATA;
+ *data = g_variant_new_double(state.voltage_target);
+ break;
+ case SR_CONF_CURRENT:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_CURRENT))
+ return SR_ERR_DATA;
+ *data = g_variant_new_double(state.current);
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_CURRENT_LIMIT))
+ return SR_ERR_DATA;
+ *data = g_variant_new_double(state.current_limit);
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_PROTECT_ENABLED))
+ return SR_ERR_DATA;
+ *data = g_variant_new_boolean(state.protect_enabled);
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_PROTECT_OVP))
+ return SR_ERR_DATA;
+ *data = g_variant_new_boolean(state.protect_ovp);
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_OUTPUT_ENABLED))
+ return SR_ERR_DATA;
+ *data = g_variant_new_double(state.ovp_threshold);
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_PROTECT_ENABLED))
+ return SR_ERR_DATA;
+ *data = g_variant_new_boolean(state.protect_enabled);
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_PROTECT_OCP))
+ return SR_ERR_DATA;
+ *data = g_variant_new_boolean(state.protect_ocp);
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
+ ret = rdtech_dps_get_state(sdi, &state);
+ if (ret != SR_OK)
+ return ret;
+ if (!(state.mask & STATE_OCP_THRESHOLD))
+ return SR_ERR_DATA;
+ *data = g_variant_new_double(state.ocp_threshold);
+ break;
default:
return SR_ERR_NA;
}
static int config_set(uint32_t key, GVariant *data,
const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
+ struct rdtech_dps_state state;
- (void)sdi;
- (void)data;
(void)cg;
- ret = SR_OK;
+ devc = sdi->priv;
+ memset(&state, 0, sizeof(state));
+
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_SAMPLES:
+ case SR_CONF_LIMIT_MSEC:
+ return sr_sw_limits_config_set(&devc->limits, key, data);
+ case SR_CONF_ENABLED:
+ state.output_enabled = g_variant_get_boolean(data);
+ state.mask |= STATE_OUTPUT_ENABLED;
+ return rdtech_dps_set_state(sdi, &state);
+ case SR_CONF_VOLTAGE_TARGET:
+ state.voltage_target = g_variant_get_double(data);
+ state.mask |= STATE_VOLTAGE_TARGET;
+ return rdtech_dps_set_state(sdi, &state);
+ case SR_CONF_CURRENT_LIMIT:
+ state.current_limit = g_variant_get_double(data);
+ state.mask |= STATE_CURRENT_LIMIT;
+ return rdtech_dps_set_state(sdi, &state);
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
+ state.ovp_threshold = g_variant_get_double(data);
+ state.mask |= STATE_OVP_THRESHOLD;
+ return rdtech_dps_set_state(sdi, &state);
+ case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
+ state.ocp_threshold = g_variant_get_double(data);
+ state.mask |= STATE_OCP_THRESHOLD;
+ return rdtech_dps_set_state(sdi, &state);
default:
- ret = SR_ERR_NA;
+ return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
static int config_list(uint32_t key, GVariant **data,
const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
- (void)sdi;
- (void)data;
- (void)cg;
+ devc = (sdi) ? sdi->priv : NULL;
- ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_SCAN_OPTIONS:
+ case SR_CONF_DEVICE_OPTIONS:
+ return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
+ case SR_CONF_VOLTAGE_TARGET:
+ *data = std_gvar_min_max_step(0.0, devc->model->max_voltage,
+ 1 / devc->voltage_multiplier);
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ *data = std_gvar_min_max_step(0.0, devc->model->max_current,
+ 1 / devc->current_multiplier);
+ break;
default:
return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
+ struct dev_context *devc;
+ struct sr_modbus_dev_inst *modbus;
+ int ret;
- (void)sdi;
+ modbus = sdi->conn;
+ devc = sdi->priv;
+
+ /* Seed internal state from current data. */
+ ret = rdtech_dps_seed_receive(sdi);
+ if (ret != SR_OK)
+ return ret;
+
+ /* Register the periodic data reception callback. */
+ ret = sr_modbus_source_add(sdi->session, modbus, G_IO_IN, 10,
+ rdtech_dps_receive_data, (void *)sdi);
+ if (ret != SR_OK)
+ return ret;
+
+ sr_sw_limits_acquisition_start(&devc->limits);
+ std_session_send_df_header(sdi);
return SR_OK;
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
- /* TODO: stop acquisition. */
+ struct sr_modbus_dev_inst *modbus;
- (void)sdi;
+ std_session_send_df_end(sdi);
+
+ modbus = sdi->conn;
+ sr_modbus_source_remove(sdi->session, modbus);
return SR_OK;
}
-SR_PRIV struct sr_dev_driver rdtech_dps_driver_info = {
+static struct sr_dev_driver rdtech_dps_driver_info = {
.name = "rdtech-dps",
- .longname = "RDTech DPS",
+ .longname = "RDTech DPS/DPH series power supply",
.api_version = 1,
.init = std_init,
.cleanup = std_cleanup,
.dev_acquisition_stop = dev_acquisition_stop,
.context = NULL,
};
-
SR_REGISTER_DEV_DRIVER(rdtech_dps_driver_info);
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