class PDUv0Tx(codec.Envelope):
STRUCT = (
Header(ver=0),
codec.Uint32BE('fn'),
codec.Uint('pwr'),
codec.Buf('hard-bits'),
)
class PDUv1Rx(codec.Envelope):
STRUCT = (
Header(ver=1),
codec.Uint32BE('fn'),
codec.Uint('rssi', mult=-1),
codec.Int16BE('toa256'),
MTS(),
codec.Int16BE('cir'),
BurstBits('soft-bits'),
)
class PDUv0Rx(codec.Envelope):
STRUCT = (
Header(ver=0),
codec.Uint32BE('fn'),
codec.Uint('rssi', mult=-1),
codec.Int16BE('toa256'),
codec.Buf('soft-bits'),
codec.Buf('pad'), # Optional
)
def __init__(self, *args, **kw):
codec.Envelope.__init__(self, *args, **kw)
# Field 'soft-bits' is either 148 (GMSK) or 444 (8-PSK) octets long
self.STRUCT[-2].get_len = lambda _, data: 444 if len(data
) > 148 else 148
class PDUv2Tx(codec.Envelope):
class BPDU(codec.Envelope):
''' Batched PDU part. '''
STRUCT = (
Header(ver=2, batched=True),
MTS(),
codec.Uint('pwr'),
codec.Int('scpir'),
codec.Spare(len=3),
BurstBits('hard-bits'),
)
STRUCT = (
Header(ver=2),
MTS(),
codec.Uint('pwr'),
codec.Int('scpir'),
codec.Spare(len=3),
codec.Uint32BE('fn'),
BurstBits('hard-bits'),
codec.Sequence(item=BPDU()).f('bpdu'),
)
class PDUv2Rx(codec.Envelope):
class BPDU(codec.Envelope):
''' Batched PDU part. '''
STRUCT = (
Header(ver=2, batched=True),
MTS(),
codec.Uint('rssi', mult=-1),
codec.Int16BE('toa256'),
codec.Int16BE('cir'),
BurstBits('soft-bits'),
)
STRUCT = (
Header(ver=2),
MTS(),
codec.Uint('rssi', mult=-1),
codec.Int16BE('toa256'),
codec.Int16BE('cir'),
codec.Uint32BE('fn'),
BurstBits('soft-bits'),
codec.Sequence(item=BPDU()).f('bpdu'),
)
def test_uint32(self):
vals = (0, 33, 255, 1024, 1337, 4099, 2**32 - 1)
self._test_uint(codec.Uint32BE('foo'), '>I', vals)
self._test_uint(codec.Uint32LE('foo'), '<I', vals)