# https://www.sparkfun.com/products/9281
#
-import sigrok
+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 = [
{'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(sigrok.Decoder):
+class Decoder(sigrokdecode.Decoder):
id = 'nunchuk'
name = 'Nunchuk'
longname = 'Nintendo Wii Nunchuk decoder'
license = 'gplv2+'
inputs = ['i2c']
outputs = ['nunchuck']
- probes = {}
+ probes = [] # TODO
options = {}
def __init__(self, **kwargs):
- self.probes = Decoder.probes.copy()
+ self.output_protocol = None
+ self.output_annotation = None
- # 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.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.output_protocol = self.output_new(2)
+ self.output_annotation = self.output_new(1)
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
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:
# 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
- self.put(out)
+ if out != []:
+ # self.put(0, 0, self.output_protocol, out_proto)
+ self.put(0, 0, self.output_annotation, out)