Initial LPC protocol decoder implementation.

[libsigrokdecode.git] / decoders / dcf77 / dcf77.py

diff --git a/decoders/dcf77/dcf77.py b/decoders/dcf77/dcf77.py
index ab600eddff400b60ae0fab78c6bb3d8a35de67f5..573888f15e88e91c20d7521d98d55df5fac3adaa 100644 (file)
--- a/decoders/dcf77/dcf77.py
+++ b/decoders/dcf77/dcf77.py
@@ -23,10 +23,6 @@
 import sigrokdecode as srd
 import calendar
 
-# States
-WAIT_FOR_RISING_EDGE = 0
-GET_BIT = 1
-
 # Annotation feed formats
 ANN_ASCII = 0
 
@@ -40,7 +36,6 @@ class Decoder(srd.Decoder):
     name = 'DCF77'
     longname = 'DCF77 time protocol'
     desc = 'TODO.'
-    longdesc = 'TODO.'
     license = 'gplv2+'
     inputs = ['logic']
     outputs = ['dcf77']
@@ -57,7 +52,7 @@ class Decoder(srd.Decoder):
     ]
 
     def __init__(self, **kwargs):
-        self.state = WAIT_FOR_RISING_EDGE
+        self.state = 'WAIT FOR RISING EDGE'
         self.oldval = None
         self.samplenum = 0
         self.bit_start = 0
@@ -204,11 +199,9 @@ class Decoder(srd.Decoder):
             raise Exception('Invalid DCF77 bit: %d' % c)
 
     def decode(self, ss, es, data):
-        for samplenum, (val) in data: # TODO: Handle optional PON.
-
-            self.samplenum += 1 # FIXME. Use samplenum. Off-by-one?
+        for (self.samplenum, (val)) in data: # TODO: Handle optional PON.
 
-            if self.state == WAIT_FOR_RISING_EDGE:
+            if self.state == 'WAIT FOR RISING EDGE':
                 # Wait until the next rising edge occurs.
                 if not (self.oldval == 0 and val == 1):
                     self.oldval = val
@@ -262,7 +255,7 @@ class Decoder(srd.Decoder):
                     self.handle_dcf77_bit(bit)
                     self.bitcount += 1
 
-                self.state = WAIT_FOR_RISING_EDGE
+                self.state = 'WAIT FOR RISING EDGE'
 
             else:
                 raise Exception('Invalid state: %d' % self.state)