static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { int ret, cg_type; unsigned int i, j; char float_str[30]; struct dev_context *devc; const struct scope_config *model; struct scope_state *state; const char *tmp; uint64_t p, q; double tmp_d; gboolean update_sample_rate; if (!sdi || !(devc = sdi->priv)) return SR_ERR_ARG; if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) return SR_ERR; model = devc->model_config; state = devc->model_state; update_sample_rate = FALSE; ret = SR_ERR_NA; switch (key) { case SR_CONF_LIMIT_FRAMES: devc->frame_limit = g_variant_get_uint64(data); ret = SR_OK; break; case SR_CONF_TRIGGER_SOURCE: tmp = g_variant_get_string(data, NULL); for (i = 0; (*model->trigger_sources)[i]; i++) { if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0) continue; state->trigger_source = i; /* TODO: A and B trigger support possible? */ ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]); break; } break; case SR_CONF_VDIV: if (cg_type == CG_NONE) { sr_err("No channel group specified."); return SR_ERR_CHANNEL_GROUP; } g_variant_get(data, "(tt)", &p, &q); for (i = 0; i < model->num_vdivs; i++) { if (p != (*model->vdivs)[i][0] || q != (*model->vdivs)[i][1]) continue; for (j = 1; j <= model->analog_channels; ++j) { if (cg != devc->analog_groups[j - 1]) continue; state->analog_states[j - 1].vdiv = i; g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q); if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK || sr_scpi_get_opc(sdi->conn) != SR_OK) return SR_ERR; break; } ret = SR_OK; break; } break; case SR_CONF_TIMEBASE: g_variant_get(data, "(tt)", &p, &q); for (i = 0; i < model->num_timebases; i++) { if (p != (*model->timebases)[i][0] || q != (*model->timebases)[i][1]) continue; state->timebase = i; g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q); ret = dlm_timebase_set(sdi->conn, float_str); update_sample_rate = TRUE; break; } break; case SR_CONF_HORIZ_TRIGGERPOS: tmp_d = g_variant_get_double(data); /* TODO: Check if the calculation makes sense for the DLM. */ if (tmp_d < 0.0 || tmp_d > 1.0) return SR_ERR; state->horiz_triggerpos = tmp_d; tmp_d = -(tmp_d - 0.5) * ((double) (*model->timebases)[state->timebase][0] / (*model->timebases)[state->timebase][1]) * model->num_xdivs; g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d); ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str); break; case SR_CONF_TRIGGER_SLOPE: tmp = g_variant_get_string(data, NULL); if (!tmp || !(tmp[0] == 'f' || tmp[0] == 'r')) return SR_ERR_ARG; /* Note: See dlm_trigger_slopes[] in protocol.c. */ state->trigger_slope = (tmp[0] == 'r') ? SLOPE_POSITIVE : SLOPE_NEGATIVE; ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope); break; case SR_CONF_COUPLING: if (cg_type == CG_NONE) { sr_err("No channel group specified."); return SR_ERR_CHANNEL_GROUP; } tmp = g_variant_get_string(data, NULL); for (i = 0; (*model->coupling_options)[i]; i++) { if (strcmp(tmp, (*model->coupling_options)[i]) != 0) continue; for (j = 1; j <= model->analog_channels; ++j) { if (cg != devc->analog_groups[j - 1]) continue; state->analog_states[j-1].coupling = i; if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK || sr_scpi_get_opc(sdi->conn) != SR_OK) return SR_ERR; break; } ret = SR_OK; break; } break; default: ret = SR_ERR_NA; break; } if (ret == SR_OK) ret = sr_scpi_get_opc(sdi->conn); if (ret == SR_OK && update_sample_rate) ret = dlm_sample_rate_query(sdi); return ret; }
static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { int ret, cg_type, idx, j; char float_str[30]; struct dev_context *devc; const struct scope_config *model; struct scope_state *state; double tmp_d; gboolean update_sample_rate; if (!sdi || !(devc = sdi->priv)) return SR_ERR_ARG; if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) return SR_ERR; model = devc->model_config; state = devc->model_state; update_sample_rate = FALSE; ret = SR_ERR_NA; switch (key) { case SR_CONF_LIMIT_FRAMES: devc->frame_limit = g_variant_get_uint64(data); ret = SR_OK; break; case SR_CONF_TRIGGER_SOURCE: if ((idx = std_str_idx(data, *model->trigger_sources, model->num_trigger_sources)) < 0) return SR_ERR_ARG; state->trigger_source = idx; /* TODO: A and B trigger support possible? */ ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[idx]); break; case SR_CONF_VDIV: if (!cg) return SR_ERR_CHANNEL_GROUP; if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(dlm_vdivs))) < 0) return SR_ERR_ARG; if ((j = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0) return SR_ERR_ARG; state->analog_states[j].vdiv = idx; g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) dlm_vdivs[idx][0] / dlm_vdivs[idx][1]); if (dlm_analog_chan_vdiv_set(sdi->conn, j + 1, float_str) != SR_OK || sr_scpi_get_opc(sdi->conn) != SR_OK) return SR_ERR; ret = SR_OK; break; case SR_CONF_TIMEBASE: if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(dlm_timebases))) < 0) return SR_ERR_ARG; state->timebase = idx; g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) dlm_timebases[idx][0] / dlm_timebases[idx][1]); ret = dlm_timebase_set(sdi->conn, float_str); update_sample_rate = TRUE; break; case SR_CONF_HORIZ_TRIGGERPOS: tmp_d = g_variant_get_double(data); /* TODO: Check if the calculation makes sense for the DLM. */ if (tmp_d < 0.0 || tmp_d > 1.0) return SR_ERR; state->horiz_triggerpos = tmp_d; tmp_d = -(tmp_d - 0.5) * ((double) dlm_timebases[state->timebase][0] / dlm_timebases[state->timebase][1]) * model->num_xdivs; g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d); ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str); break; case SR_CONF_TRIGGER_SLOPE: if ((idx = std_str_idx(data, ARRAY_AND_SIZE(dlm_trigger_slopes))) < 0) return SR_ERR_ARG; /* Note: See dlm_trigger_slopes[] in protocol.c. */ state->trigger_slope = idx; ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope); break; case SR_CONF_COUPLING: if (!cg) return SR_ERR_CHANNEL_GROUP; if ((idx = std_str_idx(data, *model->coupling_options, model->num_coupling_options)) < 0) return SR_ERR_ARG; if ((j = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0) return SR_ERR_ARG; state->analog_states[j].coupling = idx; if (dlm_analog_chan_coupl_set(sdi->conn, j + 1, (*model->coupling_options)[idx]) != SR_OK || sr_scpi_get_opc(sdi->conn) != SR_OK) return SR_ERR; ret = SR_OK; break; default: ret = SR_ERR_NA; break; } if (ret == SR_OK) ret = sr_scpi_get_opc(sdi->conn); if (ret == SR_OK && update_sample_rate) ret = dlm_sample_rate_query(sdi); return ret; }