Implement basic flushing

[libsigrokdecode.git] / decoders / tca6408a / pd.py

diff --git a/decoders/tca6408a/pd.py b/decoders/tca6408a/pd.py
index 3b0556f5df51767fa4b4ec661585da895b44e595..4ca1082a8bcfe9e2645d46ac502063332d898530 100644 (file)
--- a/decoders/tca6408a/pd.py
+++ b/decoders/tca6408a/pd.py
@@ -26,7 +26,7 @@ NUM_OUTPUT_CHANNELS = 8
 def logic_channels(num_channels):
     l = []
     for i in range(num_channels):
-        l.append(tuple(['p%d' % i, 'P-port input/output %d' % i, 100000]))
+        l.append(tuple(['p%d' % i, 'P-port input/output %d' % i]))
     return tuple(l)
 
 class Decoder(srd.Decoder):
@@ -56,28 +56,34 @@ class Decoder(srd.Decoder):
     def reset(self):
         self.state = 'IDLE'
         self.chip = -1
-        self.ss_logic = -1
+
+        self.logic_output_es = 0
+        self.logic_value = 0
 
     def start(self):
         self.out_ann = self.register(srd.OUTPUT_ANN)
         self.out_logic = self.register(srd.OUTPUT_LOGIC)
 
+    def flush(self):
+        self.put_logic_states()
+
     def putx(self, data):
         self.put(self.ss, self.es, self.out_ann, data)
 
-    def putl(self, data):
-        self.put(self.ss_logic, self.ss_logic, self.out_logic, data)
+    def put_logic_states(self):
+        if (self.es > self.logic_output_es):
+            data = bytes([self.logic_value])
+            self.put(self.logic_output_es, self.es, self.out_logic, [0, data])
+            self.logic_output_es = self.es
 
     def handle_reg_0x00(self, b):
         self.putx([1, ['State of inputs: %02X' % b]])
         # TODO
 
     def handle_reg_0x01(self, b):
+        self.put_logic_states()
         self.putx([1, ['Outputs set: %02X' % b]])
-        self.ss_logic = self.ss
-        for i in range(NUM_OUTPUT_CHANNELS):
-            bit = (b & (1 << i)) != 0
-            self.putl([i, bytes([bit])])
+        self.logic_value = b
 
     def handle_reg_0x02(self, b):
         self.putx([1, ['Polarity inverted: %02X' % b]])