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