X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Frdtech-dps%2Fprotocol.c;h=65f40ab9297ad681117a06d9f99f2c489bf7c750;hb=bd5f0a143eb12b9d6c341afe28b7f25feab53046;hp=6f1d48670b62b87288e601e5c99b5dab4b0cdc44;hpb=cce6a8a1b74b736fdd8ff52d3b231b59f0a2662f;p=libsigrok.git

diff --git a/src/hardware/rdtech-dps/protocol.c b/src/hardware/rdtech-dps/protocol.c
index 6f1d4867..65f40ab9 100644
--- a/src/hardware/rdtech-dps/protocol.c
+++ b/src/hardware/rdtech-dps/protocol.c
@@ -120,8 +120,7 @@ SR_PRIV int rdtech_dps_receive_data(int fd, int revents, void *cb_data)
 	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;
@@ -138,12 +137,12 @@ SR_PRIV int rdtech_dps_receive_data(int fd, int revents, void *cb_data)
 	 * 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,
@@ -157,8 +156,31 @@ SR_PRIV int rdtech_dps_receive_data(int fd, int revents, void *cb_data)
 			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);
 	}