struct sr_dev_inst *sdi;
struct dev_context *devc;
struct sr_modbus_dev_inst *modbus;
- struct sr_datafeed_packet packet;
- uint16_t registers[3];
+ uint16_t registers[8];
int ret;
(void)fd;
* Using the libsigrok function here, because it doesn't matter if the
* reading fails. It will be done again in the next acquision cycle anyways.
*/
- ret = sr_modbus_read_holding_registers(modbus, REG_UOUT, 3, registers);
+ ret = sr_modbus_read_holding_registers(modbus, REG_UOUT, 8, registers);
g_mutex_unlock(&devc->rw_mutex);
if (ret == SR_OK) {
- packet.type = SR_DF_FRAME_BEGIN;
- sr_session_send(sdi, &packet);
+ /* Send channel values */
+ std_session_send_df_frame_begin(sdi);
send_value(sdi, sdi->channels->data,
RB16(registers + 0) / devc->voltage_multiplier,
RB16(registers + 2) / 100.0f,
SR_MQ_POWER, 0, SR_UNIT_WATT, 2);
- packet.type = SR_DF_FRAME_END;
- sr_session_send(sdi, &packet);
+ std_session_send_df_frame_end(sdi);
+
+ /* Check for state changes */
+ if (devc->actual_ovp_state != (RB16(registers + 5) == STATE_OVP)) {
+ devc->actual_ovp_state = RB16(registers + 5) == STATE_OVP;
+ sr_session_send_meta(sdi, SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE,
+ g_variant_new_boolean(devc->actual_ovp_state));
+ }
+ if (devc->actual_ocp_state != (RB16(registers + 5) == STATE_OCP)) {
+ devc->actual_ocp_state = RB16(registers + 5) == STATE_OCP;
+ sr_session_send_meta(sdi, SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE,
+ g_variant_new_boolean(devc->actual_ocp_state));
+ }
+ if (devc->actual_regulation_state != RB16(registers + 6)) {
+ devc->actual_regulation_state = RB16(registers + 6);
+ sr_session_send_meta(sdi, SR_CONF_REGULATION,
+ g_variant_new_string(
+ devc->actual_regulation_state == MODE_CC ? "CC" : "CV"));
+ }
+ if (devc->actual_output_state != RB16(registers + 7)) {
+ devc->actual_output_state = RB16(registers + 7);
+ sr_session_send_meta(sdi, SR_CONF_ENABLED,
+ g_variant_new_boolean(devc->actual_output_state));
+ }
+
sr_sw_limits_update_samples_read(&devc->limits, 1);
}