def _parse_signal_sources(self):
srcs = []
candidates = []
# This is internal clock source.
for subunit_id, subunit_id_plugs in self.subunit_plugs['music'].items(
):
for i, plug in subunit_id_plugs['output'].items():
if plug['type'] == 'Sync':
addr = AvcCcm.get_subunit_signal_addr('music', 0, i)
candidates.append((addr, plug))
# External source is available.
for i, plug in self.unit_plugs['external']['input'].items():
if plug['type'] in ('Sync', 'Digital', 'Clock'):
addr = AvcCcm.get_unit_signal_addr('external', i)
candidates.append((addr, plug))
# SYT-match is available, but not practical.
for i, plug in self.unit_plugs['isoc']['input'].items():
if plug['type'] == 'Sync':
addr = AvcCcm.get_unit_signal_addr('isoc', i)
candidates.append((addr, plug))
# BeBoBv3 has.
# Inquire these are able to connect to destination.
for params in candidates:
addr = params[0]
plug = params[1]
try:
AvcCcm.ask_signal_source(self.fcp, addr,
self.signal_destination)
except:
continue
srcs.append(params)
return srcs
def get_avail_connections(cls, fcp, unit_plug_list, subunit_plug_list):
src_candidates = {}
dst_candidates = {}
avail = {}
for seqid, info in unit_plug_list.items():
data = info['data']
addr = AvcCcm.get_unit_signal_addr(data['unit-type'], data['plug'])
if info['dir'] == 'output':
target = dst_candidates
else:
target = src_candidates
target[seqid] = addr
for seqid, info in subunit_plug_list.items():
data = info['data']
addr = AvcCcm.get_subunit_signal_addr(data['subunit-type'],
data['subunit-id'],
data['plug'])
# Inverse direction against plugs of unit.
if info['dir'] == 'output':
target = src_candidates
else:
target = dst_candidates
target[seqid] = addr
for dst_seqid, dst_addr in dst_candidates.items():
try:
curr_src_info = AvcCcm.get_signal_source(fcp, dst_addr)
except Exception:
curr_src_info = None
for src_seqid, src_addr in src_candidates.items():
try:
AvcCcm.ask_signal_source(fcp, src_addr, dst_addr)
except Exception:
continue
if dst_seqid not in avail:
avail[dst_seqid] = []
src_info = AvcCcm.parse_signal_addr(src_addr)
avail[dst_seqid].append((src_seqid, src_info == curr_src_info))
return avail
