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bus/wishbone/Tap: remove ack feature

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This commit is contained in:
Sebastien Bourdeauducq 2012-06-10 12:46:24 +02:00
parent 5964df62db
commit f061b25a24
1 changed files with 3 additions and 20 deletions
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21
migen/bus/wishbone.py
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@ -130,16 +130,8 @@ class InterconnectShared:
return self._arbiter.get_fragment() + self._decoder.get_fragment() return self._arbiter.get_fragment() + self._decoder.get_fragment()
class Tap: class Tap:
def __init__(self, bus=None, handler=print): def __init__(self, bus, handler=print):
# If bus is None, create one and act as a normal slave.
# If we pass an existing one, dump the transactions
# without interfering with the bus.
if bus is None:
self.bus = Interface()
self.ack = True
else:
self.bus = bus self.bus = bus
self.ack = False
self.handler = handler self.handler = handler
def do_simulation(self, s): def do_simulation(self, s):
@ -155,16 +147,7 @@ class Tap:
self.handler(transaction) self.handler(transaction)
def get_fragment(self): def get_fragment(self):
if self.ack: return Fragment(sim=[self.do_simulation])
sync = [
self.bus.ack.eq(0),
If(self.bus.cyc & self.bus.stb & ~self.bus.ack,
self.bus.ack.eq(1)
)
]
else:
sync = []
return Fragment(sync=sync, sim=[self.do_simulation])
class Initiator: class Initiator:
def __init__(self, generator): def __init__(self, generator):