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flow/network/CompositeActor: expose unconnected endpoints

This commit is contained in:
Sebastien Bourdeauducq 2013-04-30 18:53:02 +02:00
parent 4f13c5b74d
commit 51f1ace061
1 changed files with 25 additions and 1 deletions
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26
migen/flow/network.py
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@ -207,8 +207,32 @@ class DataFlowGraph(MultiDiGraph):
class CompositeActor(Module):
def __init__(self, dfg):
dfg.elaborate()
# expose unconnected endpoints
uc_eps_by_node = dict((node, get_endpoints(node)) for node in dfg)
for u, v, d in dfg.edges_iter(data=True):
uc_eps_u = uc_eps_by_node[u]
source = d["source"]
try:
del uc_eps_u[source]
except KeyError:
pass
uc_eps_v = uc_eps_by_node[v]
sink = d["sink"]
try:
del uc_eps_v[sink]
except KeyError:
pass
for node, uc_eps in uc_eps_by_node.items():
for k, v in uc_eps.items():
assert(not hasattr(self, k))
setattr(self, k, v)
# generate busy signal
self.busy = Signal()
self.comb += [self.busy.eq(optree("|", [node.busy for node in dfg]))]
self.comb += self.busy.eq(optree("|", [node.busy for node in dfg]))
# claim ownership of sub-actors and establish connections
for node in dfg:
self.submodules += node
for u, v, d in dfg.edges_iter(data=True):