X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fi2s%2Fpd.py;h=dc42a4e5d1900a84d892554ed655006fd8b56781;hb=22fc7ace72f3165c98208a8f544156e04a709639;hp=1d1a7a43e0008830e9a014ab45cc17092ed80f9e;hpb=780770f1295b7fdeb4481eb42623bad5da1e19a7;p=libsigrokdecode.git

diff --git a/decoders/i2s/pd.py b/decoders/i2s/pd.py
index 1d1a7a4..dc42a4e 100644
--- a/decoders/i2s/pd.py
+++ b/decoders/i2s/pd.py
@@ -33,8 +33,11 @@ Packet:
 <value>: integer
 '''
 
+class SamplerateError(Exception):
+    pass
+
 class Decoder(srd.Decoder):
-    api_version = 1
+    api_version = 2
     id = 'i2s'
     name = 'I²S'
     longname = 'Integrated Interchip Sound'
@@ -42,16 +45,16 @@ class Decoder(srd.Decoder):
     license = 'gplv2+'
     inputs = ['logic']
     outputs = ['i2s']
-    probes = [
+    channels = (
         {'id': 'sck', 'name': 'SCK', 'desc': 'Bit clock line'},
         {'id': 'ws', 'name': 'WS', 'desc': 'Word select line'},
         {'id': 'sd', 'name': 'SD', 'desc': 'Serial data line'},
-    ]
-    annotations = [
-        ['left', 'Left channel'],
-        ['right', 'Right channel'],
-        ['warnings', 'Warnings'],
-    ]
+    )
+    annotations = (
+        ('left', 'Left channel'),
+        ('right', 'Right channel'),
+        ('warnings', 'Warnings'),
+    )
     binary = (
         ('wav', 'WAV file'),
     )
@@ -128,8 +131,8 @@ class Decoder(srd.Decoder):
         return bytes([lo, hi])
 
     def decode(self, ss, es, data):
-        if self.samplerate is None:
-            raise Exception("Cannot decode without samplerate.")
+        if not self.samplerate:
+            raise SamplerateError('Cannot decode without samplerate.')
         for self.samplenum, (sck, ws, sd) in data:
 
             # Ignore sample if the bit clock hasn't changed.