all decoders: introduce a reset() method

Move initialization code of protocol decoders from the constructor to a
new reset() helper method. The libsigrokdecode backend could run this
method several times to clear the decoder's internal state, before new
data from another acquisition gets fed to decode() calls.

1 files changed, 3 insertions, 0 deletions

diff --git a/decoders/swd/pd.py b/decoders/swd/pd.py
index 22aad45..0f7bc22 100644
--- a/decoders/swd/pd.py
+++ b/decoders/swd/pd.py
@@ -92,6 +92,9 @@ class Decoder(srd.Decoder):
     )
 
     def __init__(self):
+        self.reset()
+
+    def reset(self):
         # SWD data/clock state
         self.state = 'UNKNOWN'
         self.sample_edge = RISING