X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fnunchuk.py;h=111768b6f38bdf5b4fd12c7a7290bf07560a46a3;hb=5cc2d7bbc075ef6048bd5cd4e36533e874efb6a7;hp=d3a76c93f3c613afe8a7a6d11dce91d93f156147;hpb=012cfd0d620a42165e964c9443bbcde1e4d24b6d;p=libsigrokdecode.git

diff --git a/decoders/nunchuk.py b/decoders/nunchuk.py
index d3a76c9..111768b 100644
--- a/decoders/nunchuk.py
+++ b/decoders/nunchuk.py
@@ -22,7 +22,22 @@
 # Nintendo Wii Nunchuk decoder
 #
 
+#
 # TODO: Description
+#
+# http://wiibrew.org/wiki/Wiimote/Extension_Controllers/Nunchuck
+# http://todbot.com/blog/2008/02/18/wiichuck-wii-nunchuck-adapter-available/
+# https://www.sparkfun.com/products/9281
+#
+
+import sigrokdecode
+
+# States
+IDLE = 0
+START = 1
+NUNCHUK_SLAVE = 2
+INIT = 3
+INITIALIZED = 4
 
 # FIXME: This is just some example input for testing purposes...
 example_packets = [
@@ -47,18 +62,8 @@ example_packets = [
     {'type': 'P',  'range': (32, 33), 'data': None, 'ann': ''},
 ]
 
-class Sample():
-    def __init__(self, data):
-        self.data = data
-    def probe(self, probe):
-        s = ord(self.data[probe / 8]) & (1 << (probe % 8))
-        return True if s else False
-
-def sampleiter(data, unitsize):
-    for i in range(0, len(data), unitsize):
-        yield(Sample(data[i:i+unitsize]))
-
-class Decoder():
+class Decoder(sigrokdecode.Decoder):
+    id = 'nunchuk'
     name = 'Nunchuk'
     longname = 'Nintendo Wii Nunchuk decoder'
     desc = 'Decodes the Nintendo Wii Nunchuk I2C-based protocol.'
@@ -68,45 +73,38 @@ class Decoder():
     license = 'gplv2+'
     inputs = ['i2c']
     outputs = ['nunchuck']
-    probes = {}
+    probes = [] # TODO
     options = {}
 
     def __init__(self, **kwargs):
-        self.probes = Decoder.probes.copy()
-
-        # TODO: Don't hardcode the number of channels.
-        self.channels = 8
-
-        self.IDLE, self.START, self.NUNCHUK_SLAVE, self.INIT, \
-        self.INITIALIZED = range(5)
+        self.out_proto = None
+        self.out_ann = None
 
-        self.state = self.IDLE # TODO: Can we assume a certain initial state?
+        self.state = IDLE # TODO: Can we assume a certain initial state?
 
         self.sx = self.sy = self.ax = self.ay = self.az = self.bz = self.bc = 0
 
         self.databytecount = 0
 
     def start(self, metadata):
-        self.unitsize = metadata['unitsize']
+        # self.out_proto = self.add(sigrokdecode.SRD_OUTPUT_PROTOCOL, 'nunchuk')
+        self.out_ann = self.add(sigrokdecode.SRD_OUTPUT_ANNOTATION, 'nunchuk')
 
     def report(self):
         pass
 
-    def decode(self, data):
-        """Nintendo Wii Nunchuk decoder"""
-
+    def decode(self, timeoffset, duration, data):
         out = []
         o = {}
 
         # We should accept a list of samples and iterate...
-        # for sample in sampleiter(data['data'], self.unitsize):
-        for p in example_packets:
+        for p in example_packets: # TODO
 
             # TODO: Eliminate the need for ord().
             # s = ord(sample.data)
 
             if p['type'] == 'S': # TODO: Handle 'Sr' here, too?
-                self.state = self.START
+                self.state = START
 
             elif p['type'] == 'Sr':
                 pass # FIXME
@@ -123,7 +121,7 @@ class Decoder():
                 else:
                     pass # TODO: What to do here? Ignore? Error?
 
-            elif p['type'] == 'DR' and self.state == self.INITIALIZED:
+            elif p['type'] == 'DR' and self.state == INITIALIZED:
                 if self.databytecount == 0:
                     self.sx = p['data']
                 elif self.databytecount == 1:
@@ -154,26 +152,26 @@ class Decoder():
                 # TODO: If 6 bytes read -> save and reset
 
             # TODO
-            elif p['type'] == 'DR' and self.state != self.INITIALIZED:
+            elif p['type'] == 'DR' and self.state != INITIALIZED:
                 pass
 
             elif p['type'] == 'DW':
-                if p['data'] == 0x40 and self.state == self.START:
-                    self.state = self.INIT
-                elif p['data'] == 0x00 and self.state == self.INIT:
+                if p['data'] == 0x40 and self.state == START:
+                    self.state = INIT
+                elif p['data'] == 0x00 and self.state == INIT:
                     o = {'type': 'I', 'range': (0, 0), 'data': []}
                     o['data'] = [0x40, 0x00]
                     out.append(o)
-                    self.state = self.INITIALIZED
+                    self.state = INITIALIZED
                 else:
                     pass # TODO
 
             elif p['type'] == 'P':
                 out.append(o)
-                self.state = self.INITIALIZED
+                self.state = INITIALIZED
                 self.databytecount = 0
 
-        sigrok.put(out)
-
-import sigrok
+        if out != []:
+            # self.put(0, 0, self.out_proto, out_proto)
+            self.put(0, 0, self.out_ann, out)