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pipeline GW: add docs & remove unused code

This commit is contained in:
morgan 2024-09-24 16:02:46 +08:00
parent 71b4d95a9d
commit 52c9413bd9
1 changed files with 4 additions and 42 deletions
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46
src/gateware/cxp_pipeline.py
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@ -265,46 +265,6 @@ class TX_Test_Packet(Module, AutoCSR):
# # # # # #
# testdata_src = stream.Endpoint(upconn_layout)
# # Section 9.9.2 (CXP-001-2021)
# # 0x00, 0x01 ... 0xFF need to be send 16 times
# # cnt[8:12] is used to count up 16 times while cnt[:8] is the data
# cnt = Signal(max=0x1000)
# clr_cnt = Signal()
# inc_cnt = Signal()
# self.sync += [
# If(clr_cnt,
# cnt.eq(cnt.reset),
# ).Elif(inc_cnt,
# cnt.eq(cnt + 1),
# ),
# ]
# self.submodules.fsm = fsm = FSM(reset_state="IDLE")
# fsm.act("IDLE",
# clr_cnt.eq(1),
# If(self.stb.re,
# NextState("WRITE")
# )
# )
# fsm.act("WRITE",
# testdata_src.stb.eq(1),
# testdata_src.data.eq(cnt[:8]),
# testdata_src.k.eq(0),
# If(cnt == 0xFFF,
# testdata_src.eop.eq(1),
# If(testdata_src.ack, NextState("IDLE"))
# ).Else(
# inc_cnt.eq(testdata_src.ack)
# )
# )
# TODO: figure out why only 16 times doesn't work on the decoder
self.submodules.test_pattern_src = test_pattern_src = Code_Source(upconn_layout, [*range(0x100)]*16, [0]*0x100*16) self.submodules.test_pattern_src = test_pattern_src = Code_Source(upconn_layout, [*range(0x100)]*16, [0]*0x100*16)
self.submodules.pak_type_inserter = pak_type_inserter = Code_Inserter(upconn_layout, [0x04]*4, [0]*4) self.submodules.pak_type_inserter = pak_type_inserter = Code_Inserter(upconn_layout, [0x04]*4, [0]*4)
self.submodules.pak_wrp = pak_wrp = Packet_Wrapper(upconn_layout) self.submodules.pak_wrp = pak_wrp = Packet_Wrapper(upconn_layout)
@ -314,7 +274,6 @@ class TX_Test_Packet(Module, AutoCSR):
] ]
self.source = pak_wrp.source self.source = pak_wrp.source
self.sync += [ self.sync += [
test_pattern_src.stb.eq(self.stb.re), test_pattern_src.stb.eq(self.stb.re),
If(self.stb.re, If(self.stb.re,
@ -430,7 +389,7 @@ class CXP_Data_Packet_Decode(Module):
) )
) )
# TODO: decode packet type here # TODO: decode all packet type here
cnt = Signal(max=0x100) cnt = Signal(max=0x100)
@ -455,6 +414,9 @@ class CXP_Data_Packet_Decode(Module):
) )
) )
# Section 9.9.1 (CXP-001-2021)
# the received test data packet (0x00, 0x01 ... 0xFF)
# need to be compared against the local test sequence generator
fsm.act("VERIFY_TEST_PATTERN", fsm.act("VERIFY_TEST_PATTERN",
self.sink.ack.eq(1), self.sink.ack.eq(1),
If(self.sink.stb, If(self.sink.stb,