Implemented new datasources (modbus,scpi)

cmd/uopi/main.go

@@ -21,7 +21,9 @@ import (
 	"github.com/uopi/uopi/internal/confmgr"
 	"github.com/uopi/uopi/internal/controllogic"
 	"github.com/uopi/uopi/internal/datasource/epics"
+	"github.com/uopi/uopi/internal/datasource/modbus"
 	"github.com/uopi/uopi/internal/datasource/pva"
+	"github.com/uopi/uopi/internal/datasource/scpi"
 	"github.com/uopi/uopi/internal/datasource/servervar"
 	"github.com/uopi/uopi/internal/datasource/stub"
 	"github.com/uopi/uopi/internal/datasource/synthetic"
@@ -146,6 +148,35 @@ func main() {
 		}
 	}
 
+	// Modbus TCP data source: polls configured holding/input/coil/discrete
+	// registers on one or more devices. Disabled unless [datasource.modbus] is
+	// configured with devices.
+	if cfg.Datasource.Modbus.Enabled {
+		mbDS, err := modbus.New(cfg.Datasource.Modbus)
+		if err != nil {
+			log.Error("modbus init", "err", err)
+		} else if err := mbDS.Connect(ctx); err != nil {
+			log.Error("modbus connect", "err", err)
+		} else {
+			brk.Register(mbDS)
+			context.AfterFunc(ctx, mbDS.Close)
+		}
+	}
+
+	// SCPI data source: polls instrument channels over raw TCP sockets.
+	// Disabled unless [datasource.scpi] is configured with instruments.
+	if cfg.Datasource.SCPI.Enabled {
+		scpiDS, err := scpi.New(cfg.Datasource.SCPI)
+		if err != nil {
+			log.Error("scpi init", "err", err)
+		} else if err := scpiDS.Connect(ctx); err != nil {
+			log.Error("scpi connect", "err", err)
+		} else {
+			brk.Register(scpiDS)
+			context.AfterFunc(ctx, scpiDS.Close)
+		}
+	}
+
 	// Server variables: a small persistent key/value source ("srv") that the
 	// control-logic engine writes (e.g. sequence state) and panels can read.
 	srvVars, err := servervar.New(cfg.Server.StorageDir)