diff --git a/libsigrokdecode4DSL/decoders/autonegotiation/__init__.py b/libsigrokdecode4DSL/decoders/autonegotiation/__init__.py
new file mode 100755
index 00000000..461c1f65
--- /dev/null
+++ b/libsigrokdecode4DSL/decoders/autonegotiation/__init__.py
@@ -0,0 +1,25 @@
+##
+## This file is part of the libsigrokdecode project.
+##
+## Copyright (C) 2021 Quard <2014500726@smail.xtu.edu.cn>
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, see .
+##
+
+'''
+The Auto-Negotiation specification includes reception, arbitration,
+and transmission of normal link pulses (NLPs).
+'''
+
+from .pd import Decoder
diff --git a/libsigrokdecode4DSL/decoders/autonegotiation/pd.py b/libsigrokdecode4DSL/decoders/autonegotiation/pd.py
new file mode 100755
index 00000000..bf0f5801
--- /dev/null
+++ b/libsigrokdecode4DSL/decoders/autonegotiation/pd.py
@@ -0,0 +1,241 @@
+##
+## This file is part of the libsigrokdecode project.
+##
+## Copyright (C) 2021 Quard <2014500726@smail.xtu.edu.cn>
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, see .
+##
+
+import sigrokdecode as srd
+
+class Decoder(srd.Decoder):
+ api_version = 3
+ id = 'eth_auto_negotiation'
+ name = 'ETH_AN'
+ longname = 'ETH Auto Negotiation'
+ desc = 'ETH Auto Negotiation protocol.'
+ license = 'gplv2+'
+ inputs = ['logic']
+ outputs = ['eth_an']
+ tags = ['PC']
+ channels = (
+ {'id': 'dp', 'name': 'TX+', 'desc': 'ETH TX+ signal'},
+ )
+ annotations = (
+ ('data', 'FLP data'),
+ ('format', 'format describe'),
+ ('bitd', 'Bit desc'),
+ ('bit', 'Bit'),
+ ('NLP', 'Normal link pulses'),
+ )
+ annotation_rows = (
+ ('data', 'Data', (0,)),
+ ('format', 'Format', (1,)),
+ ('bitd', 'Bit desc', (2,)),
+ ('bit', 'Bit', (3,)),
+ ('NLP', 'NLP', (4,)),
+ )
+
+ def __init__(self):
+ self.reset()
+
+ def reset(self):
+ self.ss = self.es = 0
+ self.pre_ss = self.pre_es = 0
+ self.last_vaild_ss = 0
+ self.samplerate = None
+ self.samplenum = 0
+ self.hex = 0
+ self.pre_hex = 0
+ self.index = 0
+ self.data_list = []
+ self.state = 'base page'
+
+ def start(self):
+ self.out_python = self.register(srd.OUTPUT_PYTHON)
+ self.out_ann = self.register(srd.OUTPUT_ANN)
+ self.out_binary = self.register(srd.OUTPUT_BINARY)
+
+ def metadata(self, key, value):
+ if key == srd.SRD_CONF_SAMPLERATE:
+ self.samplerate = value
+
+ def changeState(self):
+ if self.pre_hex != self.hex:
+ if self.state == 'base page':
+ if ((self.hex>>14)&0x3) == 0x3:
+ self.state = 'base page ack'
+ elif self.state == 'base page ack':
+ self.state = 'next page'
+ elif self.state == 'next page':
+ if ((self.hex>>14)&0x3) == 0x1:
+ self.state = 'next page ack'
+ elif self.state == 'next page ack':
+ self.state = 'base page'
+
+ def decodeTiming(self):
+ self.wait({0: 'r'})
+ self.ss = self.samplenum
+ self.wait({0: 'e'})
+ self.es = self.samplenum
+
+ length = float(self.es - self.ss)/self.samplerate
+ if length <= 1.0e-5 and length >= 1.0e-6: # 1us ~ 10us
+ self.put(self.ss, self.es, self.out_ann, [4, ['NLP']])
+ temp_length = self.ss - self.last_vaild_ss
+ length = float(temp_length)/self.samplerate
+ self.last_vaild_ss = self.ss
+ if length <= 7.0e-5 and length >= 6.0e-5: # 60us ~ 70us
+ self.hex = self.hex|0x1<= 1.2e-4: # 120us ~ 140us
+ self.data_list.append({'start':self.ss-(temp_length>>1),
+ 'end':self.es-(temp_length>>1),
+ 'Pre start':self.pre_ss,
+ 'Pre end':self.pre_es})
+ self.index = self.index + 1
+ self.pre_ss = self.ss
+ self.pre_es = self.es
+
+ def decodeBasePage(self):
+ base_page_ta_dict = {
+ 5:'10BaseT-HD',
+ 6:'10BaseT-FD',
+ 7:'100BaseTX-HD',
+ 8:'100BaseTX-FD',
+ 9:'100BaseT4',
+ 10:'FC',
+ 11:'AsyFC',
+ 12:'Reserved',
+ 13:'RF',
+ 14:'ACK',
+ 15:'NP',
+ }
+ if (self.hex&0x1f) == 0x1:
+ type_desc = '802.3'
+ elif (self.hex&0x1f) == 0x2:
+ type_desc = '802.9'
+ else:
+ type_desc = 'unknow'
+ for i in range(16):
+ self.put(self.data_list[i]['Pre start'],
+ self.data_list[i]['end'],
+ self.out_ann,
+ [3, [str(hex(((self.hex>>i)&0x1)))]])
+ if i in base_page_ta_dict.keys():
+ self.put(self.data_list[i]['Pre start'],
+ self.data_list[i]['end'],
+ self.out_ann,
+ [2, [base_page_ta_dict[i]]])
+ self.put(self.data_list[0]['Pre start'],
+ self.data_list[15]['end'],
+ self.out_ann,
+ [0, ["base page:"+str(hex(self.hex))]])
+ self.put(self.data_list[0]['Pre start'],
+ self.data_list[4]['end'],
+ self.out_ann,
+ [1, ["Selector field:"+str(hex(self.hex&0x1f))]])
+ self.put(self.data_list[0]['Pre start'],
+ self.data_list[4]['end'],
+ self.out_ann,
+ [2, [type_desc]])
+ self.put(self.data_list[5]['Pre start'],
+ self.data_list[12]['end'],
+ self.out_ann,
+ [1, ["Technology ability field:"+str(hex(((self.hex>>5)&0xff)))]])
+ self.put(self.data_list[13]['Pre start'],
+ self.data_list[15]['end'],
+ self.out_ann,
+ [1, ["Other fields:"+str(hex(((self.hex>>13)&0x7)))]])
+
+ def decodeNextPage(self):
+ next_page_ta_dict = {
+ 0:'1000BaseT M/S CFG EN',
+ 1:'1000BaseT M/S CFG Vale',
+ 2:'Port type',
+ 3:'1000BaseT-FD',
+ 4:'1000BaseT-HD',
+ 5:'10GBaseT-FD',
+ 6:'10GBaseT M/S CFG EN',
+ 7:'10GBaseT M/S CFG Vale',
+ 8:'Reserved',
+ 9:'Reserved',
+ 10:'Reserved',
+ }
+ next_page_ot_dict = {
+ 11:'T',
+ 12:'ACK2',
+ 13:'MP',
+ 14:'ACK',
+ 15:'NP',
+ }
+ if ((self.hex>>13)&0x1) == 0x1:
+ mp = "Technology ability field:"
+ else :
+ mp = "Unformatted code field:"
+ for i in range(16):
+ self.put(self.data_list[i]['Pre start'],
+ self.data_list[i]['end'],
+ self.out_ann,
+ [3, [str(hex(((self.hex>>i)&0x1)))]])
+ if i in next_page_ot_dict.keys():
+ self.put(self.data_list[i]['Pre start'],
+ self.data_list[i]['end'],
+ self.out_ann,
+ [2, [next_page_ot_dict[i]]])
+ if mp == "Technology ability field:":
+ if i in next_page_ta_dict.keys():
+ self.put(self.data_list[i]['Pre start'],
+ self.data_list[i]['end'],
+ self.out_ann,
+ [2, [next_page_ta_dict[i]]])
+ self.put(self.data_list[0]['Pre start'],
+ self.data_list[15]['end'],
+ self.out_ann,
+ [0, ["next page:"+str(hex(self.hex))]])
+ self.put(self.data_list[0]['Pre start'],
+ self.data_list[10]['end'],
+ self.out_ann,
+ [1, [mp+str(hex((self.hex&0x7ff)))]])
+ if mp == "Unformatted code field:":
+ self.put(self.data_list[0]['Pre start'],
+ self.data_list[10]['end'],
+ self.out_ann,
+ [2, ["Master-Slave seed value (MSB)"]])
+ self.put(self.data_list[11]['Pre start'],
+ self.data_list[15]['end'],
+ self.out_ann,
+ [1, ["Other fields:"+str(hex(((self.hex>>11)&0x1f)))]])
+
+ def updateOnceDecode(self):
+ self.pre_hex = self.hex
+ self.data_list = []
+ self.index = 0
+ self.hex = 0
+
+ def decode(self):
+ while True:
+ self.decodeTiming()
+ if self.index == 16:
+ self.changeState()
+ if self.state == 'base page' or self.state == 'base page ack':
+ self.decodeBasePage()
+ elif self.state == 'next page' or self.state == 'next page ack':
+ self.decodeNextPage()
+ self.updateOnceDecode()