litex/migen/bus/simple.py

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from migen.fhdl.structure import *
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def get_sig_name(signal, slave):
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if signal[0] ^ slave:
suffix = "_o"
else:
suffix = "_i"
return signal[1] + suffix
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# desc is a list of tuples, each made up of:
# 0) boolean: "master to slave"
# 1) string: name
# 2) int: width
class Simple():
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def __init__(self, desc, slave, name):
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for signal in desc:
modules = self.__module__.split('.')
busname = modules[len(modules)-1]
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if name:
busname += "_" + name
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signame = get_sig_name(signal, slave)
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setattr(self, signame, Signal(BV(signal[2]), busname + "_" + signame))
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def signals(self):
return [self.__dict__[k]
for k in self.__dict__
if isinstance(self.__dict__[k], Signal)]