96 lines
3 KiB
Python
96 lines
3 KiB
Python
#
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# This file is part of LiteEth.
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#
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# Copyright (c) 2015-2020 Florent Kermarrec <florent@enjoy-digital.fr>
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# SPDX-License-Identifier: BSD-2-Clause
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from liteeth.common import *
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from liteeth.mac import LiteEthMAC
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from liteeth.core.arp import LiteEthARP
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from liteeth.core.ip import LiteEthIP
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from liteeth.core.udp import LiteEthUDP
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from liteeth.core.icmp import LiteEthICMP
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# IP Core ------------------------------------------------------------------------------------------
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class LiteEthIPCore(Module, AutoCSR):
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def __init__(self, phy, mac_address, ip_address, clk_freq, dw=8,
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hybrid = False,
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with_icmp = True,
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with_ip_broadcast = True,
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with_sys_datapath = False):
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# Parameters.
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# -----------
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ip_address = convert_ip(ip_address)
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# MAC.
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# ----
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self.submodules.mac = LiteEthMAC(
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phy = phy,
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dw = dw,
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interface = "hybrid" if hybrid else "crossbar",
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with_preamble_crc = True,
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with_sys_datapath = with_sys_datapath,
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)
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# ARP.
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# ----
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self.submodules.arp = LiteEthARP(
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mac = self.mac,
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mac_address = mac_address,
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ip_address = ip_address,
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clk_freq = clk_freq,
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dw = dw,
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)
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# IP.
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# ---
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self.submodules.ip = LiteEthIP(
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mac = self.mac,
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mac_address = mac_address,
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ip_address = ip_address,
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arp_table = self.arp.table,
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with_broadcast = with_ip_broadcast,
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dw = dw,
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)
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# ICMP (Optional).
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# ----------------
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if with_icmp:
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self.submodules.icmp = LiteEthICMP(
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ip = self.ip,
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ip_address = ip_address,
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dw = dw,
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)
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# UDP IP Core --------------------------------------------------------------------------------------
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class LiteEthUDPIPCore(LiteEthIPCore):
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def __init__(self, phy, mac_address, ip_address, clk_freq, dw=8,
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hybrid=False,
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with_icmp = True,
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with_ip_broadcast = True,
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with_sys_datapath = False):
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# Parameters.
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# -----------
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ip_address = convert_ip(ip_address)
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# Core: MAC + ARP + IP + (ICMP).
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# ------------------------------
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LiteEthIPCore.__init__(self,
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phy = phy,
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mac_address = mac_address,
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ip_address = ip_address,
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clk_freq = clk_freq,
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hybrid = hybrid,
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with_icmp = with_icmp,
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dw = dw,
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with_ip_broadcast = with_ip_broadcast,
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with_sys_datapath = with_sys_datapath,
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)
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# UDP.
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# ----
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self.submodules.udp = LiteEthUDP(
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ip = self.ip,
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ip_address = ip_address,
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dw = dw,
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)
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