i2c_packet: removed non-transaction mode

Author: sespivak

decoders/i2c_packet/pd.py

@@ -44,10 +44,7 @@
 '''
 
 class Ann:
-    PACKET_READ, \
-    PACKET_WRITE, \
-    TRANSACTION, \
-        = range(3)
+    DATA = 0
 
 class Decoder(srd.Decoder):
     api_version = 3
@@ -62,17 +59,12 @@ class Decoder(srd.Decoder):
     options = (
         {'id': 'format', 'desc': 'Data format', 'default': 'hex',
             'values': ('ascii', 'dec', 'hex', 'oct', 'bin')},
-        {'id': 'transaction', 'desc': 'Transaction mode', 'default': 'no', 'values': ('yes', 'no')},
     )
     annotations = (
-        ('rd', 'Read'),
-        ('wr', 'Write'),
         ('data', 'Data'),
     )
     annotation_rows = (
-        ('rd', 'Read', (Ann.PACKET_READ, )),
-        ('wr', 'Write', (Ann.PACKET_WRITE, )),
-        ('data', 'Data', (Ann.TRANSACTION, )),
+        ('data', 'Data', (Ann.DATA,)),
     )
 
     def __init__(self):
@@ -84,7 +76,6 @@ def __init__(self):
         self.packet_ss = 0
         self.packet_part_ss = 0
         self.packet_es = 0
-        self.transaction = False
         self.read_sign = False
         self.address = 0
         self.fmt = None
@@ -105,7 +96,6 @@ def start(self):
             self.fmt = '{:03o}'
         else:
             self.fmt = None
-        self.transaction = self.options['transaction'] == 'yes'
         self.packet_data = deque()
 
     def reset(self):
@@ -130,6 +120,7 @@ def format_data_value(self, v):
         # below 32 is "control" and thus not printable, above 127 is
         # "not ASCII" in its strict sense, 127 (DEL) is not printable,
         # fall back to hex representation for non-printables.
+        # (comment from same code of uart PD by Gerhard Sittig @gsigh)
         if self.fmt is None:
             if 32 <= v <= 126:
                 return chr(v)
@@ -153,7 +144,7 @@ def format_packet(self):
 
         packet_str_short = packet_str[2:]
 
-        if self.transaction and self.packet_str:
+        if self.packet_str:
             packet_str = self.packet_str + ' [SR] ' + packet_str
             packet_str_short = self.packet_str_short + ' [SR] ' + packet_str_short
 
@@ -168,24 +159,20 @@ def handle_packet(self, start_repeat=False):
         packet_str, packet_str_short = self.format_packet()
 
         ptype = 'PACKET READ' if self.read_sign else 'PACKET WRITE'
-        self.putp(self.packet_part_ss, self.packet_es, (ptype, (self.address, tuple(self.packet_data))))
+        self.putp(self.packet_part_ss, self.packet_es,
+                  (ptype, (self.address, tuple(self.packet_data))))
         if not start_repeat:
-            self.putp(self.packet_es, self.packet_es, ('TRANSACTION END', None))
+            self.putp(self.packet_es, self.packet_es,
+                      ('TRANSACTION END', None))
 
-        if start_repeat and self.transaction:
+        if start_repeat:
             self.packet_data.clear()
             self.packet_str = packet_str
             self.packet_str_short = packet_str_short
         else:
-            if self.transaction:
-                ann = Ann.TRANSACTION
-            elif self.read_sign:
-                ann = Ann.PACKET_READ
-            else:
-                ann = Ann.PACKET_WRITE
-
-            packet_ss = self.packet_ss if self.transaction else self.packet_part_ss
-            self.putg(packet_ss, self.packet_es, [ann, [packet_str, packet_str_short]])
+            packet_ss = self.packet_ss
+            self.putg(packet_ss, self.packet_es,
+                      [Ann.DATA, [packet_str, packet_str_short]])
             self.reset()
 
     def decode(self, ss, es, data):