SR_PRIV int hmo_scope_state_get(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
struct scope_state *state;
const struct scope_config *config;
float tmp_float;
unsigned int i;
devc = sdi->priv;
config = devc->model_config;
state = devc->model_state;
sr_info("Fetching scope state");
if (analog_channel_state_get(sdi->conn, config, state) != SR_OK)
return SR_ERR;
if (digital_channel_state_get(sdi->conn, config, state) != SR_OK)
return SR_ERR;
if (sr_scpi_get_float(sdi->conn,
(*config->scpi_dialect)[SCPI_CMD_GET_TIMEBASE],
&tmp_float) != SR_OK)
return SR_ERR;
for (i = 0; i < config->num_timebases; i++) {
if (tmp_float == ((float) (*config->timebases)[i][0] /
(*config->timebases)[i][1])) {
state->timebase = i;
break;
}
}
if (i == config->num_timebases) {
sr_err("Could not determine array index for time base.");
return SR_ERR;
}
if (sr_scpi_get_float(sdi->conn,
(*config->scpi_dialect)[SCPI_CMD_GET_HORIZ_TRIGGERPOS],
&tmp_float) != SR_OK)
return SR_ERR;
state->horiz_triggerpos = tmp_float /
(((double) (*config->timebases)[state->timebase][0] /
(*config->timebases)[state->timebase][1]) * config->num_xdivs);
state->horiz_triggerpos -= 0.5;
state->horiz_triggerpos *= -1;
if (scope_state_get_array_option(sdi->conn,
(*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SOURCE],
config->trigger_sources, &state->trigger_source) != SR_OK)
return SR_ERR;
if (scope_state_get_array_option(sdi->conn,
(*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SLOPE],
config->trigger_slopes, &state->trigger_slope) != SR_OK)
return SR_ERR;
if (hmo_update_sample_rate(sdi) != SR_OK)
return SR_ERR;
sr_info("Fetching finished.");
scope_state_dump(config, state);
return SR_OK;
}
/**
* Obtains information about the current device state from the oscilloscope,
* including all analog and digital channel configurations.
* The internal state information is updated accordingly.
*
* @param sdi The device instance.
*
* @return SR_ERR on error, SR_OK otherwise.
*/
SR_PRIV int dlm_scope_state_query(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
struct scope_state *state;
const struct scope_config *config;
float tmp_float;
gchar *response;
int i;
devc = sdi->priv;
config = devc->model_config;
state = devc->model_state;
if (analog_channel_state_get(sdi, config, state) != SR_OK)
return SR_ERR;
if (digital_channel_state_get(sdi, config, state) != SR_OK)
return SR_ERR;
if (dlm_timebase_get(sdi->conn, &response) != SR_OK)
return SR_ERR;
if (array_float_get(response, dlm_timebases,
ARRAY_SIZE(dlm_timebases), &i) != SR_OK) {
g_free(response);
return SR_ERR;
}
g_free(response);
state->timebase = i;
if (dlm_horiz_trigger_pos_get(sdi->conn, &tmp_float) != SR_OK)
return SR_ERR;
/* TODO: Check if the calculation makes sense for the DLM. */
state->horiz_triggerpos = tmp_float /
(((double)dlm_timebases[state->timebase][0] /
dlm_timebases[state->timebase][1]) * config->num_xdivs);
state->horiz_triggerpos -= 0.5;
state->horiz_triggerpos *= -1;
if (dlm_trigger_source_get(sdi->conn, &response) != SR_OK) {
g_free(response);
return SR_ERR;
}
if (array_option_get(response, config->trigger_sources,
&state->trigger_source) != SR_OK) {
g_free(response);
return SR_ERR;
}
g_free(response);
if (dlm_trigger_slope_get(sdi->conn, &i) != SR_OK)
return SR_ERR;
state->trigger_slope = i;
if (dlm_acq_length_get(sdi->conn, &state->samples_per_frame) != SR_OK) {
sr_err("Failed to query acquisition length.");
return SR_ERR;
}
dlm_sample_rate_query(sdi);
scope_state_dump(config, state);
return SR_OK;
}
