31 lines
927 B
Python
31 lines
927 B
Python
from liteeth.common import *
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from liteeth.generic import *
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from liteeth.generic.crossbar import LiteEthCrossbar
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class LiteEthIPV4MasterPort:
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def __init__(self, dw):
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self.dw = dw
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self.source = Source(eth_ipv4_user_description(dw))
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self.sink = Sink(eth_ipv4_user_description(dw))
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class LiteEthIPV4SlavePort:
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def __init__(self, dw):
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self.dw = dw
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self.sink = Sink(eth_ipv4_user_description(dw))
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self.source = Source(eth_ipv4_user_description(dw))
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class LiteEthIPV4UserPort(LiteEthIPV4SlavePort):
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def __init__(self, dw):
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LiteEthIPV4SlavePort.__init__(self, dw)
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class LiteEthIPV4Crossbar(LiteEthCrossbar):
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def __init__(self):
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LiteEthCrossbar.__init__(self, LiteEthIPV4MasterPort, "protocol")
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def get_port(self, protocol):
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if protocol in self.users.keys():
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raise ValueError("Protocol {0:#x} already assigned".format(protocol))
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port = LiteEthIPV4UserPort(8)
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self.users[protocol] = port
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return port
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