## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
-# USB signalling (low-speed and full-speed) protocol decoder
-
import sigrokdecode as srd
'''
-Protocol output format:
+OUTPUT_PYTHON format:
Packet:
[<ptype>, <pdata>]
['bit', 'Bit'],
['stuffbit', 'Stuff bit'],
]
+ annotation_rows = (
+ ('bits', 'Bits', (1, 2, 3, 4)),
+ ('symbols', 'Symbols', (0,)),
+ )
def __init__(self):
self.samplerate = None
self.state = 'IDLE'
def start(self):
- self.out_proto = self.add(srd.OUTPUT_PROTO, 'usb_signalling')
- self.out_ann = self.add(srd.OUTPUT_ANN, 'usb_signalling')
+ self.out_python = self.register(srd.OUTPUT_PYTHON)
+ self.out_ann = self.register(srd.OUTPUT_ANN)
def metadata(self, key, value):
if key == srd.SRD_CONF_SAMPLERATE:
self.bitwidth = float(self.samplerate) / float(self.bitrate)
self.halfbit = int(self.bitwidth / 2)
- def report(self):
- pass
-
def putpx(self, data):
- self.put(self.samplenum, self.samplenum, self.out_proto, data)
+ self.put(self.samplenum, self.samplenum, self.out_python, data)
def putx(self, data):
self.put(self.samplenum, self.samplenum, self.out_ann, data)
def putpm(self, data):
s, h = self.samplenum, self.halfbit
- self.put(self.ss_block - h, s + h, self.out_proto, data)
+ self.put(self.ss_block - h, s + h, self.out_python, data)
def putm(self, data):
s, h = self.samplenum, self.halfbit
def putpb(self, data):
s, h = self.samplenum, self.halfbit
- self.put(s - h, s + h, self.out_proto, data)
+ self.put(s - h, s + h, self.out_python, data)
def putb(self, data):
s, h = self.samplenum, self.halfbit
if self.consecutive_ones == 6 and b == '0':
# Stuff bit.
self.putpb(['STUFF BIT', None])
- self.putb([4, ['SB: %s/%s' % (sym, b)]])
+ self.putb([4, ['SB: %s' % b]])
+ self.putb([0, ['%s' % sym]])
self.consecutive_ones = 0
else:
# Normal bit (not a stuff bit).
self.putpb(['BIT', b])
- self.putb([3, ['%s/%s' % (sym, b)]])
+ self.putb([3, ['%s' % b]])
+ self.putb([0, ['%s' % sym]])
if b == '1':
self.consecutive_ones += 1
else: