racket: aufgraeumt, data2c gefixt

1 files changed, 0 insertions, 104 deletions

diff --git a/ebus-racket/layer2.rkt b/ebus-racket/layer2.rkt
deleted file mode 100644
index 3dd881c..0000000
--- a/ebus-racket/layer2.rkt
+++ /dev/null
@@ -1,104 +0,0 @@
-#lang racket/base
-(require racket/bool
-         (planet bzlib/parseq:1:3))
-
-(define logger (make-logger 'ebus-layer2 (current-logger)))
-;; Ebus SYN
-(define ebus-const-syn #xaa)
-;; Ebus Escape-Sequence Start
-(define ebus-const-escape #xa9)
-;; Ebus ACK
-(define ebus-const-ackok #x00)
-;; Ebus Broadcast Address
-(define ebus-const-broadcastaddr 254)
-
-(struct ebus-body-broadcast (crc) #:transparent)
-
-(struct ebus-body-mastermaster (crc) #:transparent)
-
-(struct ebus-body-masterslave
-	(crc payloadSlaveLength payloadSlave crcSlave)
-	#:transparent)
-
-(struct ebus-paket
-	(source destination primaryCommand secondaryCommand payloadLength payload body)
-	#:transparent)
-
-;; single, maybe escaped, payload data byte 
-(define ebus-payload
-  (choice (seq escape-seq <- ebus-const-escape
-	       escape-code <- (byte-in (list 0 1))
-	       (return (cond
-			((= escape-code 0) ebus-const-escape)
-			((= escape-code 1) bytes ebus-const-syn))))
-	  any-byte
-	  ))
-
-(define parse-ebus-broadcast
-  (token (seq crc <- any-byte
-	      syn <- ebus-const-syn
-	      (return (ebus-body-broadcast crc)))))
-
-(define parse-ebus-mastermaster
-  (token (seq  crc <- any-byte
-	       ack <- ebus-const-ackok ;; ACK des Empfängers
-	       syn <- ebus-const-syn   ;; SYN des Senders
-	       (return (ebus-body-mastermaster crc)))))
-
-(define parse-ebus-masterslave 
-  (token (seq crc <- any-byte
-	      ack <- ebus-const-ackok ;; ACK des Empfängers
-	      payloadSlaveLength <- any-byte
-	      payloadSlave <- (repeat ebus-payload payloadSlaveLength payloadSlaveLength)
-	      crcSlave <- any-byte
-	      ackSlave <- ebus-const-ackok ;; ACK des Senders
-	      synSlave <- ebus-const-syn   ;; SYN des Senders
-	      (return (ebus-body-masterslave crc payloadSlaveLength payloadSlave crcSlave)))))
-
-(define parse-ebus-paket
-  (token (seq source <- any-byte
-	      destination <- any-byte
-	      primaryCommand <- any-byte
-	      secondaryCommand <- any-byte
-	      payloadLength <- any-byte
-	      payload <- (repeat ebus-payload payloadLength payloadLength)
-	      body <- (cond ((= destination ebus-const-broadcastaddr) parse-ebus-broadcast)
-			    (else (choice parse-ebus-mastermaster 
-					  parse-ebus-masterslave)))
-	      (return (ebus-paket source 
-				  destination
-				  primaryCommand
-				  secondaryCommand
-				  payloadLength
-				  payload 
-				  body)))))
-
-(define ebus-sync (tokens syncs <- (seq (repeat (string->bytes/latin-1 "\xaa")))
-                          (return (length syncs))))
-
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(define (read-ebus input-port)
-  (define syn   ((make-reader ebus-sync #:sof? #f #:eof? #f)  input-port))
-  (define paket   ((make-reader parse-ebus-paket #:sof? #f #:eof? #f) input-port))
-  (cond ((not (false? syn))
-	 (log-message logger 'debug (format "drop ~s x SYN (~s)" syn ebus-const-syn) #t)))
-  (cond ((not (false? paket))
-	 paket)
-	((eof-object? (peek-byte input-port))
-	 eof)
-	(else
-	 ;; skip one byte
-	 (let ([byte (read-byte input-port)])
-	   (log-message logger 'debug (format "drop ~s 0x~x ~n" byte byte) #t))
-	 (read-ebus input-port))))
-
-(provide 
- ;; Read Layer Ebus-Paket `ebus-paket`
- (prefix-out layer2- read-ebus)
- (prefix-out layer2- (struct-out ebus-paket))
- (prefix-out layer2- (struct-out ebus-body-broadcast))
- (prefix-out layer2- (struct-out ebus-body-mastermaster))
- (prefix-out layer2- (struct-out ebus-body-masterslave))
- (prefix-out layer2- logger))
\ No newline at end of file