decoders: Rephrase condition-less .wait() calls (self documentation)

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

diff --git a/decoders/wiegand/pd.py b/decoders/wiegand/pd.py
index 2352fbc85c5000e8407e012feb303f654028672c..3edefc5b00494d548c547e85bea481c5c3cec1d1 100644 (file)
--- a/decoders/wiegand/pd.py
+++ b/decoders/wiegand/pd.py
@@ -14,14 +14,13 @@
 ## GNU General Public License for more details.
 ##
 ## You should have received a copy of the GNU General Public License
-## along with this program; if not, write to the Free Software
-## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+## along with this program; if not, see <http://www.gnu.org/licenses/>.
 ##
 
 import sigrokdecode as srd
 
 class Decoder(srd.Decoder):
-    api_version = 2
+    api_version = 3
     id = 'wiegand'
     name = 'Wiegand'
     longname = 'Wiegand interface'
@@ -55,7 +54,7 @@ class Decoder(srd.Decoder):
         self._d1_prev = None
 
         self._state = None
-        self._ss_state = None
+        self.ss_state = None
 
         self.ss_bit = None
         self.es_bit = None
@@ -65,7 +64,7 @@ class Decoder(srd.Decoder):
     def start(self):
         'Register output types and verify user supplied decoder values.'
         self.out_ann = self.register(srd.OUTPUT_ANN)
-        self._active = self.options['active'] == 'high' and 1 or 0
+        self._active = 1 if self.options['active'] == 'high' else 0
         self._inactive = 1 - self._active
 
     def metadata(self, key, value):
@@ -98,13 +97,16 @@ class Decoder(srd.Decoder):
             elif self._state == 'invalid':
                 ann = [1, [self._state]]
             if ann:
-                self.put(self._ss_state, self.samplenum, self.out_ann, ann)
-            self._ss_state = self.samplenum
+                self.put(self.ss_state, self.samplenum, self.out_ann, ann)
+            self.ss_state = self.samplenum
             self._state = state
             self._bits = []
 
-    def decode(self, ss, es, data):
-        for self.samplenum, (d0, d1) in data:
+    def decode(self):
+        while True:
+            # TODO: Come up with more appropriate self.wait() conditions.
+            (d0, d1) = self.wait()
+
             if d0 == self._d0_prev and d1 == self._d1_prev:
                 if self.es_bit and self.samplenum >= self.es_bit:
                     if (d0, d1) == (self._inactive, self._inactive):