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https://github.com/DreamSourceLab/DSView.git
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Merge pull request #440 from QQxiaoming/master
decoder: add ETH Auto Negotiation decoder
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dreamsourcelabTAI
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commit
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25
libsigrokdecode4DSL/decoders/autonegotiation/__init__.py
Executable file
25
libsigrokdecode4DSL/decoders/autonegotiation/__init__.py
Executable file
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##
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## This file is part of the libsigrokdecode project.
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##
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## Copyright (C) 2021 Quard <2014500726@smail.xtu.edu.cn>
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 2 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program; if not, see <http://www.gnu.org/licenses/>.
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##
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'''
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The Auto-Negotiation specification includes reception, arbitration,
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and transmission of normal link pulses (NLPs).
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'''
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from .pd import Decoder
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241
libsigrokdecode4DSL/decoders/autonegotiation/pd.py
Executable file
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libsigrokdecode4DSL/decoders/autonegotiation/pd.py
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##
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## This file is part of the libsigrokdecode project.
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##
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## Copyright (C) 2021 Quard <2014500726@smail.xtu.edu.cn>
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 2 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program; if not, see <http://www.gnu.org/licenses/>.
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##
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import sigrokdecode as srd
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class Decoder(srd.Decoder):
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api_version = 3
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id = 'eth_auto_negotiation'
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name = 'ETH_AN'
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longname = 'ETH Auto Negotiation'
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desc = 'ETH Auto Negotiation protocol.'
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license = 'gplv2+'
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inputs = ['logic']
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outputs = ['eth_an']
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tags = ['PC']
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channels = (
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{'id': 'dp', 'name': 'TX+', 'desc': 'ETH TX+ signal'},
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)
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annotations = (
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('data', 'FLP data'),
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('format', 'format describe'),
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('bitd', 'Bit desc'),
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('bit', 'Bit'),
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('NLP', 'Normal link pulses'),
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)
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annotation_rows = (
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('data', 'Data', (0,)),
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('format', 'Format', (1,)),
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('bitd', 'Bit desc', (2,)),
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('bit', 'Bit', (3,)),
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('NLP', 'NLP', (4,)),
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)
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def __init__(self):
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self.reset()
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def reset(self):
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self.ss = self.es = 0
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self.pre_ss = self.pre_es = 0
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self.last_vaild_ss = 0
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self.samplerate = None
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self.samplenum = 0
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self.hex = 0
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self.pre_hex = 0
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self.index = 0
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self.data_list = []
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self.state = 'base page'
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def start(self):
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self.out_python = self.register(srd.OUTPUT_PYTHON)
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self.out_ann = self.register(srd.OUTPUT_ANN)
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self.out_binary = self.register(srd.OUTPUT_BINARY)
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def metadata(self, key, value):
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if key == srd.SRD_CONF_SAMPLERATE:
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self.samplerate = value
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def changeState(self):
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if self.pre_hex != self.hex:
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if self.state == 'base page':
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if ((self.hex>>14)&0x3) == 0x3:
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self.state = 'base page ack'
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elif self.state == 'base page ack':
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self.state = 'next page'
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elif self.state == 'next page':
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if ((self.hex>>14)&0x3) == 0x1:
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self.state = 'next page ack'
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elif self.state == 'next page ack':
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self.state = 'base page'
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def decodeTiming(self):
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self.wait({0: 'r'})
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self.ss = self.samplenum
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self.wait({0: 'e'})
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self.es = self.samplenum
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length = float(self.es - self.ss)/self.samplerate
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if length <= 1.0e-5 and length >= 1.0e-6: # 1us ~ 10us
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self.put(self.ss, self.es, self.out_ann, [4, ['NLP']])
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temp_length = self.ss - self.last_vaild_ss
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length = float(temp_length)/self.samplerate
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self.last_vaild_ss = self.ss
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if length <= 7.0e-5 and length >= 6.0e-5: # 60us ~ 70us
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self.hex = self.hex|0x1<<self.index
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self.data_list.append({'start':self.ss,
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'end':self.es,
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'Pre start':self.pre_ss,
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'Pre end':self.pre_es})
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self.index = self.index + 1
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self.last_vaild_ss = 0
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elif length <= 1.4e-4 and length >= 1.2e-4: # 120us ~ 140us
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self.data_list.append({'start':self.ss-(temp_length>>1),
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'end':self.es-(temp_length>>1),
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'Pre start':self.pre_ss,
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'Pre end':self.pre_es})
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self.index = self.index + 1
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self.pre_ss = self.ss
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self.pre_es = self.es
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def decodeBasePage(self):
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base_page_ta_dict = {
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5:'10BaseT-HD',
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6:'10BaseT-FD',
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7:'100BaseTX-HD',
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8:'100BaseTX-FD',
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9:'100BaseT4',
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10:'FC',
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11:'AsyFC',
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12:'Reserved',
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13:'RF',
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14:'ACK',
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15:'NP',
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}
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if (self.hex&0x1f) == 0x1:
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type_desc = '802.3'
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elif (self.hex&0x1f) == 0x2:
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type_desc = '802.9'
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else:
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type_desc = 'unknow'
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for i in range(16):
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self.put(self.data_list[i]['Pre start'],
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self.data_list[i]['end'],
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self.out_ann,
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[3, [str(hex(((self.hex>>i)&0x1)))]])
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if i in base_page_ta_dict.keys():
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self.put(self.data_list[i]['Pre start'],
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self.data_list[i]['end'],
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self.out_ann,
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[2, [base_page_ta_dict[i]]])
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self.put(self.data_list[0]['Pre start'],
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self.data_list[15]['end'],
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self.out_ann,
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[0, ["base page:"+str(hex(self.hex))]])
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self.put(self.data_list[0]['Pre start'],
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self.data_list[4]['end'],
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self.out_ann,
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[1, ["Selector field:"+str(hex(self.hex&0x1f))]])
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self.put(self.data_list[0]['Pre start'],
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self.data_list[4]['end'],
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self.out_ann,
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[2, [type_desc]])
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self.put(self.data_list[5]['Pre start'],
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self.data_list[12]['end'],
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self.out_ann,
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[1, ["Technology ability field:"+str(hex(((self.hex>>5)&0xff)))]])
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self.put(self.data_list[13]['Pre start'],
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self.data_list[15]['end'],
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self.out_ann,
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[1, ["Other fields:"+str(hex(((self.hex>>13)&0x7)))]])
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def decodeNextPage(self):
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next_page_ta_dict = {
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0:'1000BaseT M/S CFG EN',
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1:'1000BaseT M/S CFG Vale',
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2:'Port type',
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3:'1000BaseT-FD',
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4:'1000BaseT-HD',
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5:'10GBaseT-FD',
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6:'10GBaseT M/S CFG EN',
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7:'10GBaseT M/S CFG Vale',
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8:'Reserved',
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9:'Reserved',
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10:'Reserved',
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}
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next_page_ot_dict = {
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11:'T',
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12:'ACK2',
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13:'MP',
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14:'ACK',
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15:'NP',
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}
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if ((self.hex>>13)&0x1) == 0x1:
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mp = "Technology ability field:"
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else :
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mp = "Unformatted code field:"
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for i in range(16):
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self.put(self.data_list[i]['Pre start'],
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self.data_list[i]['end'],
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self.out_ann,
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[3, [str(hex(((self.hex>>i)&0x1)))]])
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if i in next_page_ot_dict.keys():
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self.put(self.data_list[i]['Pre start'],
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self.data_list[i]['end'],
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self.out_ann,
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[2, [next_page_ot_dict[i]]])
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if mp == "Technology ability field:":
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if i in next_page_ta_dict.keys():
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self.put(self.data_list[i]['Pre start'],
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self.data_list[i]['end'],
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self.out_ann,
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[2, [next_page_ta_dict[i]]])
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self.put(self.data_list[0]['Pre start'],
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self.data_list[15]['end'],
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self.out_ann,
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[0, ["next page:"+str(hex(self.hex))]])
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self.put(self.data_list[0]['Pre start'],
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self.data_list[10]['end'],
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self.out_ann,
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[1, [mp+str(hex((self.hex&0x7ff)))]])
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if mp == "Unformatted code field:":
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self.put(self.data_list[0]['Pre start'],
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self.data_list[10]['end'],
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self.out_ann,
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[2, ["Master-Slave seed value (MSB)"]])
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self.put(self.data_list[11]['Pre start'],
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self.data_list[15]['end'],
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self.out_ann,
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[1, ["Other fields:"+str(hex(((self.hex>>11)&0x1f)))]])
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def updateOnceDecode(self):
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self.pre_hex = self.hex
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self.data_list = []
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self.index = 0
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self.hex = 0
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def decode(self):
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while True:
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self.decodeTiming()
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if self.index == 16:
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self.changeState()
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if self.state == 'base page' or self.state == 'base page ack':
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self.decodeBasePage()
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elif self.state == 'next page' or self.state == 'next page ack':
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self.decodeNextPage()
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self.updateOnceDecode()
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