static int analog_channel_state_get(struct sr_scpi_dev_inst *scpi,
const struct scope_config *config,
struct scope_state *state)
{
unsigned int i, j;
float tmp_float;
char command[MAX_COMMAND_SIZE];
for (i = 0; i < config->analog_channels; ++i) {
g_snprintf(command, sizeof(command),
(*config->scpi_dialect)[SCPI_CMD_GET_ANALOG_CHAN_STATE],
i + 1);
if (sr_scpi_get_bool(scpi, command,
&state->analog_channels[i].state) != SR_OK)
return SR_ERR;
g_snprintf(command, sizeof(command),
(*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_DIV],
i + 1);
if (sr_scpi_get_float(scpi, command, &tmp_float) != SR_OK)
return SR_ERR;
for (j = 0; j < config->num_vdivs; j++) {
if (tmp_float == ((float) (*config->vdivs)[j][0] /
(*config->vdivs)[j][1])) {
state->analog_channels[i].vdiv = j;
break;
}
}
if (j == config->num_vdivs) {
sr_err("Could not determine array index for vertical div scale.");
return SR_ERR;
}
g_snprintf(command, sizeof(command),
(*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_OFFSET],
i + 1);
if (sr_scpi_get_float(scpi, command,
&state->analog_channels[i].vertical_offset) != SR_OK)
return SR_ERR;
g_snprintf(command, sizeof(command),
(*config->scpi_dialect)[SCPI_CMD_GET_COUPLING],
i + 1);
if (scope_state_get_array_option(scpi, command, config->coupling_options,
&state->analog_channels[i].coupling) != SR_OK)
return SR_ERR;
}
return SR_OK;
}
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;
}
static int analog_channel_state_get(struct sr_scpi_dev_inst *scpi,
const struct scope_config *config,
struct scope_state *state)
{
unsigned int i, j;
char command[MAX_COMMAND_SIZE];
char *tmp_str;
for (i = 0; i < config->analog_channels; i++) {
g_snprintf(command, sizeof(command),
(*config->scpi_dialect)[SCPI_CMD_GET_ANALOG_CHAN_STATE],
i + 1);
if (sr_scpi_get_bool(scpi, command,
&state->analog_channels[i].state) != SR_OK)
return SR_ERR;
g_snprintf(command, sizeof(command),
(*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_DIV],
i + 1);
if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK)
return SR_ERR;
if (array_float_get(tmp_str, hmo_vdivs, ARRAY_SIZE(hmo_vdivs),
&j) != SR_OK) {
g_free(tmp_str);
sr_err("Could not determine array index for vertical div scale.");
return SR_ERR;
}
g_free(tmp_str);
state->analog_channels[i].vdiv = j;
g_snprintf(command, sizeof(command),
(*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_OFFSET],
i + 1);
if (sr_scpi_get_float(scpi, command,
&state->analog_channels[i].vertical_offset) != SR_OK)
return SR_ERR;
g_snprintf(command, sizeof(command),
(*config->scpi_dialect)[SCPI_CMD_GET_COUPLING],
i + 1);
if (scope_state_get_array_option(scpi, command, config->coupling_options,
&state->analog_channels[i].coupling) != SR_OK)
return SR_ERR;
g_snprintf(command, sizeof(command),
(*config->scpi_dialect)[SCPI_CMD_GET_PROBE_UNIT],
i + 1);
if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK)
return SR_ERR;
if (tmp_str[0] == 'A')
state->analog_channels[i].probe_unit = 'A';
else
state->analog_channels[i].probe_unit = 'V';
g_free(tmp_str);
}
return SR_OK;
}
