45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
from collections import defaultdict
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from migen.fhdl.std import *
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from migen.flow.actor import *
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class EndpointSimHook(Module):
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def __init__(self, endpoint):
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self.endpoint = endpoint
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def on_ack(self):
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pass
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def on_nack(self):
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pass
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def on_inactive(self):
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pass
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def do_simulation(self, selfp):
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if selfp.endpoint.stb:
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if selfp.endpoint.ack:
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self.on_ack()
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else:
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self.on_nack()
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else:
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self.on_inactive()
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class DFGHook(Module):
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def __init__(self, dfg, create):
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assert(not dfg.is_abstract())
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self.nodepair_to_ep = defaultdict(dict)
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for hookn, (u, v, data) in enumerate(dfg.edges_iter(data=True)):
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ep_to_hook = self.nodepair_to_ep[(u, v)]
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ep = data["source"]
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h = create(u, ep, v)
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ep_to_hook[ep] = h
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setattr(self.submodules, "hook"+str(hookn), h)
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def hooks_iter(self):
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for v1 in self.nodepair_to_ep.values():
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for v2 in v1.values():
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yield v2
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