software: communication: Implement unslip()

This implements to decode the Serial Line Internet Protocol (SLIP). It
splits the continuous byte stream into frames. Based on these frames the
rest of the data link layer and upper layers can be implemented.

1 files changed, 7 insertions, 3 deletions

diff --git a/software/communication/interface.go b/software/communication/interface.go
index d124a48..df089f2 100644
--- a/software/communication/interface.go
+++ b/software/communication/interface.go
@@ -1,11 +1,12 @@
 package communication
 
 import (
-	"fmt"
+	"log"
 )
 
 type SerialInterface struct {
 	phy physical
+	dl  dataLink
 }
 
 func NewSerialInterface() (SerialInterface, error) {
@@ -17,16 +18,19 @@ func NewSerialInterface() (SerialInterface, error) {
 		return iface, err
 	}
 
+	iface.dl = newDataLink()
+
 	return iface, nil
 }
 
 func (i *SerialInterface) Start() {
 	i.phy.start()
+	i.dl.start(i.phy.rx)
 }
 
 func (i *SerialInterface) Cat() {
 	for {
-		data := <-i.phy.rx
-		fmt.Printf("%s", string(data))
+		data := <-i.dl.rx
+		log.Printf("RX: '%v'\n", data)
 	}
 }