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actorlib/structuring/Pipeline: make 'busy' a signal

This commit is contained in:
Sebastien Bourdeauducq 2014-11-01 21:48:02 +08:00
parent 33c3a927c2
commit dcedc4e6a5
1 changed files with 2 additions and 3 deletions
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5
migen/actorlib/structuring.py
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@ -199,14 +199,13 @@ class Converter(Module):
class Pipeline(Module): class Pipeline(Module):
def __init__(self, *modules): def __init__(self, *modules):
self.busy = Signal()
n = len(modules) n = len(modules)
m = modules[0] m = modules[0]
# expose sink of first module # expose sink of first module
# if available # if available
if hasattr(m, "sink"): if hasattr(m, "sink"):
self.sink = m.sink self.sink = m.sink
# use of busy is encouraged
# but not mandatory
if hasattr(m, "busy"): if hasattr(m, "busy"):
busy = m.busy busy = m.busy
else: else:
@ -224,4 +223,4 @@ class Pipeline(Module):
# if available # if available
if hasattr(m, "source"): if hasattr(m, "source"):
self.source = m.source self.source = m.source
self.busy = busy self.comb += self.busy.eq(busy)