* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <config.h>
+#include <string.h>
+#include <strings.h>
+#include "scpi.h"
#include "protocol.h"
-SR_PRIV struct sr_dev_driver scpi_pps_driver_info;
-static struct sr_dev_driver *di = &scpi_pps_driver_info;
+static struct sr_dev_driver scpi_pps_driver_info;
+static struct sr_dev_driver hp_ib_pps_driver_info;
-static int init(struct sr_context *sr_ctx)
+static const uint32_t scanopts[] = {
+ SR_CONF_CONN,
+ SR_CONF_SERIALCOMM,
+};
+
+static const uint32_t drvopts[] = {
+ SR_CONF_POWER_SUPPLY,
+};
+
+static const struct pps_channel_instance pci[] = {
+ { SR_MQ_VOLTAGE, SCPI_CMD_GET_MEAS_VOLTAGE, "V" },
+ { SR_MQ_CURRENT, SCPI_CMD_GET_MEAS_CURRENT, "I" },
+ { SR_MQ_POWER, SCPI_CMD_GET_MEAS_POWER, "P" },
+ { SR_MQ_FREQUENCY, SCPI_CMD_GET_MEAS_FREQUENCY, "F" },
+};
+
+static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi,
+ int (*get_hw_id)(struct sr_scpi_dev_inst *scpi,
+ struct sr_scpi_hw_info **scpi_response))
+{
+ struct dev_context *devc;
+ struct sr_dev_inst *sdi;
+ struct sr_scpi_hw_info *hw_info;
+ struct sr_channel_group *cg;
+ struct sr_channel *ch;
+ const struct scpi_pps *device;
+ struct pps_channel *pch;
+ struct channel_spec *channels;
+ struct channel_group_spec *channel_groups, *cgs;
+ struct pps_channel_group *pcg;
+ GRegex *model_re;
+ GMatchInfo *model_mi;
+ GSList *l;
+ uint64_t mask;
+ unsigned int num_channels, num_channel_groups, ch_num, ch_idx, i, j;
+ int ret;
+ const char *vendor;
+ char ch_name[16];
+
+ if (get_hw_id(scpi, &hw_info) != SR_OK) {
+ sr_info("Couldn't get IDN response.");
+ return NULL;
+ }
+
+ device = NULL;
+ for (i = 0; i < num_pps_profiles; i++) {
+ vendor = sr_vendor_alias(hw_info->manufacturer);
+ if (g_ascii_strcasecmp(vendor, pps_profiles[i].vendor))
+ continue;
+ model_re = g_regex_new(pps_profiles[i].model, 0, 0, NULL);
+ if (g_regex_match(model_re, hw_info->model, 0, &model_mi))
+ device = &pps_profiles[i];
+ g_match_info_unref(model_mi);
+ g_regex_unref(model_re);
+ if (device)
+ break;
+ }
+ if (!device) {
+ sr_scpi_hw_info_free(hw_info);
+ return NULL;
+ }
+
+ sdi = g_malloc0(sizeof(struct sr_dev_inst));
+ sdi->vendor = g_strdup(vendor);
+ sdi->model = g_strdup(hw_info->model);
+ sdi->version = g_strdup(hw_info->firmware_version);
+ sdi->conn = scpi;
+ sdi->driver = &scpi_pps_driver_info;
+ sdi->inst_type = SR_INST_SCPI;
+ sdi->serial_num = g_strdup(hw_info->serial_number);
+
+ devc = g_malloc0(sizeof(struct dev_context));
+ devc->device = device;
+ sdi->priv = devc;
+
+ if (device->num_channels) {
+ /* Static channels and groups. */
+ channels = (struct channel_spec *)device->channels;
+ num_channels = device->num_channels;
+ channel_groups = (struct channel_group_spec *)device->channel_groups;
+ num_channel_groups = device->num_channel_groups;
+ } else {
+ /* Channels and groups need to be probed. */
+ ret = device->probe_channels(sdi, hw_info, &channels, &num_channels,
+ &channel_groups, &num_channel_groups);
+ if (ret != SR_OK) {
+ sr_err("Failed to probe for channels.");
+ return NULL;
+ }
+ /*
+ * Since these were dynamically allocated, we'll need to free them
+ * later.
+ */
+ devc->channels = channels;
+ devc->channel_groups = channel_groups;
+ }
+
+ ch_idx = 0;
+ for (ch_num = 0; ch_num < num_channels; ch_num++) {
+ /* Create one channel per measurable output unit. */
+ for (i = 0; i < ARRAY_SIZE(pci); i++) {
+ if (!scpi_cmd_get(devc->device->commands, pci[i].command))
+ continue;
+ g_snprintf(ch_name, 16, "%s%s", pci[i].prefix,
+ channels[ch_num].name);
+ ch = sr_channel_new(sdi, ch_idx++, SR_CHANNEL_ANALOG, TRUE,
+ ch_name);
+ pch = g_malloc0(sizeof(struct pps_channel));
+ pch->hw_output_idx = ch_num;
+ pch->hwname = channels[ch_num].name;
+ pch->mq = pci[i].mq;
+ ch->priv = pch;
+ }
+ }
+
+ for (i = 0; i < num_channel_groups; i++) {
+ cgs = &channel_groups[i];
+ cg = g_malloc0(sizeof(struct sr_channel_group));
+ cg->name = g_strdup(cgs->name);
+ for (j = 0, mask = 1; j < 64; j++, mask <<= 1) {
+ if (cgs->channel_index_mask & mask) {
+ for (l = sdi->channels; l; l = l->next) {
+ ch = l->data;
+ pch = ch->priv;
+ if (pch->hw_output_idx == j)
+ cg->channels = g_slist_append(cg->channels, ch);
+ }
+ }
+ }
+ pcg = g_malloc0(sizeof(struct pps_channel_group));
+ pcg->features = cgs->features;
+ cg->priv = pcg;
+ sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
+ }
+
+ sr_scpi_hw_info_free(hw_info);
+ hw_info = NULL;
+
+ scpi_cmd(sdi, devc->device->commands, SCPI_CMD_LOCAL);
+
+ return sdi;
+}
+
+static gchar *hpib_get_revision(struct sr_scpi_dev_inst *scpi)
{
- return std_init(sr_ctx, di, LOG_PREFIX);
+ int ret;
+ gboolean matches;
+ char *response;
+ GRegex *version_regex;
+
+ ret = sr_scpi_get_string(scpi, "ROM?", &response);
+ if (ret != SR_OK && !response)
+ return NULL;
+
+ /* Example version string: "B01 B01" */
+ version_regex = g_regex_new("[A-Z][0-9]{2} [A-Z][0-9]{2}", 0, 0, NULL);
+ matches = g_regex_match(version_regex, response, 0, NULL);
+ g_regex_unref(version_regex);
+
+ if (!matches) {
+ /* Not a valid version string. Ignore it. */
+ g_free(response);
+ response = NULL;
+ } else {
+ /* Replace space with dot. */
+ response[3] = '.';
+ }
+
+ return response;
}
-static GSList *scan(GSList *options)
+/*
+ * This function assumes the response is in the form "HP<model_number>"
+ *
+ * HP made many GPIB (then called HP-IB) instruments before the SCPI command
+ * set was introduced into the standard. We haven't seen any non-HP instruments
+ * which respond to the "ID?" query, so assume all are HP for now.
+ */
+static int hpib_get_hw_id(struct sr_scpi_dev_inst *scpi,
+ struct sr_scpi_hw_info **scpi_response)
{
- struct drv_context *drvc;
- GSList *devices;
+ int ret;
+ char *response;
+ struct sr_scpi_hw_info *hw_info;
- (void)options;
+ ret = sr_scpi_get_string(scpi, "ID?", &response);
+ if ((ret != SR_OK) || !response)
+ return SR_ERR;
- devices = NULL;
- drvc = di->priv;
- drvc->instances = NULL;
+ hw_info = g_malloc0(sizeof(struct sr_scpi_hw_info));
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+ *scpi_response = hw_info;
+ hw_info->model = response;
+ hw_info->firmware_version = hpib_get_revision(scpi);
+ hw_info->manufacturer = g_strdup("HP");
- return devices;
+ return SR_OK;
}
-static GSList *dev_list(void)
+static struct sr_dev_inst *probe_scpi_pps_device(struct sr_scpi_dev_inst *scpi)
{
- return ((struct drv_context *)(di->priv))->instances;
+ return probe_device(scpi, sr_scpi_get_hw_id);
}
-static int dev_clear(void)
+static struct sr_dev_inst *probe_hpib_pps_device(struct sr_scpi_dev_inst *scpi)
{
- return std_dev_clear(di, NULL);
+ return probe_device(scpi, hpib_get_hw_id);
}
-static int dev_open(struct sr_dev_inst *sdi)
+static GSList *scan_scpi_pps(struct sr_dev_driver *di, GSList *options)
{
- (void)sdi;
+ return sr_scpi_scan(di->context, options, probe_scpi_pps_device);
+}
- /* TODO: get handle from sdi->conn and open it. */
+static GSList *scan_hpib_pps(struct sr_dev_driver *di, GSList *options)
+{
+ return sr_scpi_scan(di->context, options, probe_hpib_pps_device);
+}
- sdi->status = SR_ST_ACTIVE;
+static int dev_open(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_scpi_dev_inst *scpi;
+ GVariant *beeper;
+
+ scpi = sdi->conn;
+ if (sr_scpi_open(scpi) < 0)
+ return SR_ERR;
+
+ devc = sdi->priv;
+ scpi_cmd(sdi, devc->device->commands, SCPI_CMD_REMOTE);
+ devc->beeper_was_set = FALSE;
+ if (scpi_cmd_resp(sdi, devc->device->commands, &beeper,
+ G_VARIANT_TYPE_BOOLEAN, SCPI_CMD_BEEPER) == SR_OK) {
+ if (g_variant_get_boolean(beeper)) {
+ devc->beeper_was_set = TRUE;
+ scpi_cmd(sdi, devc->device->commands, SCPI_CMD_BEEPER_DISABLE);
+ }
+ g_variant_unref(beeper);
+ }
return SR_OK;
}
static int dev_close(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ struct sr_scpi_dev_inst *scpi;
+ struct dev_context *devc;
- /* TODO: get handle from sdi->conn and close it. */
+ devc = sdi->priv;
+ scpi = sdi->conn;
- sdi->status = SR_ST_INACTIVE;
+ if (!scpi)
+ return SR_ERR_BUG;
- return SR_OK;
+ if (devc->beeper_was_set)
+ scpi_cmd(sdi, devc->device->commands, SCPI_CMD_BEEPER_ENABLE);
+ scpi_cmd(sdi, devc->device->commands, SCPI_CMD_LOCAL);
+
+ return sr_scpi_close(scpi);
}
-static int cleanup(void)
+static void clear_helper(void *priv)
{
- dev_clear();
+ struct dev_context *devc;
- /* TODO: free other driver resources, if any. */
+ devc = priv;
+ g_free(devc->channels);
+ g_free(devc->channel_groups);
+ g_free(devc);
+}
- return SR_OK;
+static int dev_clear(const struct sr_dev_driver *di)
+{
+ return std_dev_clear(di, clear_helper);
}
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
+static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
- int ret;
-
- (void)sdi;
- (void)data;
- (void)cg;
+ struct dev_context *devc;
+ const GVariantType *gvtype;
+ unsigned int i;
+ int cmd, ret;
+ const char *s;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+
+ if (cg) {
+ /*
+ * These options only apply to channel groups with a single
+ * channel -- they're per-channel settings for the device.
+ */
+
+ /*
+ * Config keys are handled below depending on whether a channel
+ * group was provided by the frontend. However some of these
+ * take a CG on one PPS but not on others. Check the device's
+ * profile for that here, and NULL out the channel group as needed.
+ */
+ for (i = 0; i < devc->device->num_devopts; i++) {
+ if (devc->device->devopts[i] == key) {
+ cg = NULL;
+ break;
+ }
+ }
+ }
- ret = SR_OK;
+ gvtype = NULL;
+ cmd = -1;
switch (key) {
- /* TODO */
- default:
+ case SR_CONF_ENABLED:
+ gvtype = G_VARIANT_TYPE_BOOLEAN;
+ cmd = SCPI_CMD_GET_OUTPUT_ENABLED;
+ break;
+ case SR_CONF_VOLTAGE:
+ gvtype = G_VARIANT_TYPE_DOUBLE;
+ cmd = SCPI_CMD_GET_MEAS_VOLTAGE;
+ break;
+ case SR_CONF_VOLTAGE_TARGET:
+ gvtype = G_VARIANT_TYPE_DOUBLE;
+ cmd = SCPI_CMD_GET_VOLTAGE_TARGET;
+ break;
+ case SR_CONF_OUTPUT_FREQUENCY:
+ gvtype = G_VARIANT_TYPE_DOUBLE;
+ cmd = SCPI_CMD_GET_MEAS_FREQUENCY;
+ break;
+ case SR_CONF_OUTPUT_FREQUENCY_TARGET:
+ gvtype = G_VARIANT_TYPE_DOUBLE;
+ cmd = SCPI_CMD_GET_FREQUENCY_TARGET;
+ break;
+ case SR_CONF_CURRENT:
+ gvtype = G_VARIANT_TYPE_DOUBLE;
+ cmd = SCPI_CMD_GET_MEAS_CURRENT;
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ gvtype = G_VARIANT_TYPE_DOUBLE;
+ cmd = SCPI_CMD_GET_CURRENT_LIMIT;
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
+ gvtype = G_VARIANT_TYPE_BOOLEAN;
+ cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ENABLED;
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE:
+ gvtype = G_VARIANT_TYPE_BOOLEAN;
+ cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE;
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
+ gvtype = G_VARIANT_TYPE_DOUBLE;
+ cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_THRESHOLD;
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
+ gvtype = G_VARIANT_TYPE_BOOLEAN;
+ cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ENABLED;
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE:
+ gvtype = G_VARIANT_TYPE_BOOLEAN;
+ cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE;
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
+ gvtype = G_VARIANT_TYPE_DOUBLE;
+ cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_THRESHOLD;
+ break;
+ case SR_CONF_OVER_TEMPERATURE_PROTECTION:
+ gvtype = G_VARIANT_TYPE_BOOLEAN;
+ cmd = SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION;
+ break;
+ case SR_CONF_REGULATION:
+ gvtype = G_VARIANT_TYPE_STRING;
+ cmd = SCPI_CMD_GET_OUTPUT_REGULATION;
+ }
+ if (!gvtype)
return SR_ERR_NA;
+
+ if (cg)
+ select_channel(sdi, cg->channels->data);
+ ret = scpi_cmd_resp(sdi, devc->device->commands, data, gvtype, cmd);
+
+ if (cmd == SCPI_CMD_GET_OUTPUT_REGULATION) {
+ /*
+ * The Rigol DP800 series return CV/CC/UR, Philips PM2800
+ * return VOLT/CURR. We always return a GVariant string in
+ * the Rigol notation.
+ */
+ s = g_variant_get_string(*data, NULL);
+ if (!strcmp(s, "VOLT")) {
+ g_variant_unref(*data);
+ *data = g_variant_new_string("CV");
+ } else if (!strcmp(s, "CURR")) {
+ g_variant_unref(*data);
+ *data = g_variant_new_string("CC");
+ }
+
+ s = g_variant_get_string(*data, NULL);
+ if (strcmp(s, "CV") && strcmp(s, "CC") && strcmp(s, "UR")) {
+ sr_dbg("Unknown response to SCPI_CMD_GET_OUTPUT_REGULATION: %s", s);
+ ret = SR_ERR_DATA;
+ }
}
return ret;
}
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
+static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
+ struct dev_context *devc;
+ double d;
int ret;
- (void)data;
- (void)cg;
+ if (!sdi)
+ return SR_ERR_ARG;
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
+ if (cg)
+ /* Channel group specified. */
+ select_channel(sdi, cg->channels->data);
+
+ devc = sdi->priv;
- ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_ENABLED:
+ if (g_variant_get_boolean(data))
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_OUTPUT_ENABLE);
+ else
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_OUTPUT_DISABLE);
+ break;
+ case SR_CONF_VOLTAGE_TARGET:
+ d = g_variant_get_double(data);
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_VOLTAGE_TARGET, d);
+ break;
+ case SR_CONF_OUTPUT_FREQUENCY_TARGET:
+ d = g_variant_get_double(data);
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_FREQUENCY_TARGET, d);
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ d = g_variant_get_double(data);
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_CURRENT_LIMIT, d);
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
+ if (g_variant_get_boolean(data))
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_ENABLE);
+ else
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_DISABLE);
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
+ d = g_variant_get_double(data);
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_THRESHOLD, d);
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
+ if (g_variant_get_boolean(data))
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_OVER_CURRENT_PROTECTION_ENABLE);
+ else
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_OVER_CURRENT_PROTECTION_DISABLE);
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
+ d = g_variant_get_double(data);
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_OVER_CURRENT_PROTECTION_THRESHOLD, d);
+ break;
+ case SR_CONF_OVER_TEMPERATURE_PROTECTION:
+ if (g_variant_get_boolean(data))
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_ENABLE);
+ else
+ ret = scpi_cmd(sdi, devc->device->commands,
+ SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_DISABLE);
+ break;
default:
ret = SR_ERR_NA;
}
return ret;
}
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+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;
+ struct sr_channel *ch;
+ const struct channel_spec *ch_spec;
+ GVariant *gvar;
+ GVariantBuilder gvb;
+ int ret, i;
+ const char *s[16];
+
+ /* Always available, even without sdi. */
+ if (key == SR_CONF_SCAN_OPTIONS) {
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
+ return SR_OK;
+ } else if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
+ return SR_OK;
+ }
- (void)sdi;
- (void)data;
- (void)cg;
+ if (!sdi)
+ return SR_ERR_ARG;
+ devc = sdi->priv;
ret = SR_OK;
- switch (key) {
- /* TODO */
- default:
- return SR_ERR_NA;
+ if (!cg) {
+ /* No channel group: global options. */
+ switch (key) {
+ case SR_CONF_DEVICE_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ devc->device->devopts, devc->device->num_devopts,
+ sizeof(uint32_t));
+ break;
+ case SR_CONF_CHANNEL_CONFIG:
+ /* Not used. */
+ i = 0;
+ if (devc->device->features & PPS_INDEPENDENT)
+ s[i++] = "Independent";
+ if (devc->device->features & PPS_SERIES)
+ s[i++] = "Series";
+ if (devc->device->features & PPS_PARALLEL)
+ s[i++] = "Parallel";
+ if (i == 0) {
+ /*
+ * Shouldn't happen: independent-only devices
+ * shouldn't advertise this option at all.
+ */
+ return SR_ERR_NA;
+ }
+ *data = g_variant_new_strv(s, i);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+ } else {
+ /* Channel group specified. */
+ /*
+ * Per-channel-group options depending on a channel are actually
+ * done with the first channel. Channel groups in PPS can have
+ * more than one channel, but they will typically be of equal
+ * specification for use in series or parallel mode.
+ */
+ ch = cg->channels->data;
+
+ switch (key) {
+ case SR_CONF_DEVICE_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ devc->device->devopts_cg, devc->device->num_devopts_cg,
+ sizeof(uint32_t));
+ break;
+ case SR_CONF_VOLTAGE_TARGET:
+ ch_spec = &(devc->device->channels[ch->index]);
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ /* Min, max, write resolution. */
+ for (i = 0; i < 3; i++) {
+ gvar = g_variant_new_double(ch_spec->voltage[i]);
+ g_variant_builder_add_value(&gvb, gvar);
+ }
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_OUTPUT_FREQUENCY_TARGET:
+ ch_spec = &(devc->device->channels[ch->index]);
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ /* Min, max, write resolution. */
+ for (i = 0; i < 3; i++) {
+ gvar = g_variant_new_double(ch_spec->frequency[i]);
+ g_variant_builder_add_value(&gvb, gvar);
+ }
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ /* Min, max, step. */
+ for (i = 0; i < 3; i++) {
+ ch_spec = &(devc->device->channels[ch->index]);
+ gvar = g_variant_new_double(ch_spec->current[i]);
+ g_variant_builder_add_value(&gvb, gvar);
+ }
+ *data = g_variant_builder_end(&gvb);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
}
return ret;
}
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
+static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
- (void)sdi;
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
+ struct dev_context *devc;
+ struct sr_scpi_dev_inst *scpi;
+ struct sr_channel *ch;
+ struct pps_channel *pch;
+ int cmd, ret;
+
+ devc = sdi->priv;
+ scpi = sdi->conn;
+
+ if ((ret = sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 10,
+ scpi_pps_receive_data, (void *)sdi)) != SR_OK)
+ return ret;
+ std_session_send_df_header(sdi);
+
+ /* Prime the pipe with the first channel's fetch. */
+ ch = sr_next_enabled_channel(sdi, NULL);
+ pch = ch->priv;
+ if ((ret = select_channel(sdi, ch)) < 0)
+ return ret;
+ if (pch->mq == SR_MQ_VOLTAGE)
+ cmd = SCPI_CMD_GET_MEAS_VOLTAGE;
+ else if (pch->mq == SR_MQ_FREQUENCY)
+ cmd = SCPI_CMD_GET_MEAS_FREQUENCY;
+ else if (pch->mq == SR_MQ_CURRENT)
+ cmd = SCPI_CMD_GET_MEAS_CURRENT;
+ else if (pch->mq == SR_MQ_POWER)
+ cmd = SCPI_CMD_GET_MEAS_POWER;
+ else
+ return SR_ERR;
+ scpi_cmd(sdi, devc->device->commands, cmd, pch->hwname);
return SR_OK;
}
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
- (void)cb_data;
+ struct sr_scpi_dev_inst *scpi;
+ float f;
+
+ scpi = sdi->conn;
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
+ /*
+ * A requested value is certainly on the way. Retrieve it now,
+ * to avoid leaving the device in a state where it's not expecting
+ * commands.
+ */
+ sr_scpi_get_float(scpi, NULL, &f);
+ sr_scpi_source_remove(sdi->session, scpi);
- /* TODO: stop acquisition. */
+ std_session_send_df_end(sdi);
return SR_OK;
}
-SR_PRIV struct sr_dev_driver scpi_pps_driver_info = {
+static struct sr_dev_driver scpi_pps_driver_info = {
.name = "scpi-pps",
.longname = "SCPI PPS",
.api_version = 1,
- .init = init,
- .cleanup = cleanup,
- .scan = scan,
- .dev_list = dev_list,
+ .init = std_init,
+ .cleanup = std_cleanup,
+ .scan = scan_scpi_pps,
+ .dev_list = std_dev_list,
+ .dev_clear = dev_clear,
+ .config_get = config_get,
+ .config_set = config_set,
+ .config_list = config_list,
+ .dev_open = dev_open,
+ .dev_close = dev_close,
+ .dev_acquisition_start = dev_acquisition_start,
+ .dev_acquisition_stop = dev_acquisition_stop,
+ .context = NULL,
+};
+
+static struct sr_dev_driver hp_ib_pps_driver_info = {
+ .name = "hpib-pps",
+ .longname = "HP-IB PPS",
+ .api_version = 1,
+ .init = std_init,
+ .cleanup = std_cleanup,
+ .scan = scan_hpib_pps,
+ .dev_list = std_dev_list,
.dev_clear = dev_clear,
.config_get = config_get,
.config_set = config_set,
.dev_close = dev_close,
.dev_acquisition_start = dev_acquisition_start,
.dev_acquisition_stop = dev_acquisition_stop,
- .priv = NULL,
+ .context = NULL,
};
+SR_REGISTER_DEV_DRIVER(scpi_pps_driver_info);
+SR_REGISTER_DEV_DRIVER(hp_ib_pps_driver_info);
projects / libsigrok.git / blobdiff