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rffe
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CJpower
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libsigrokdecode4DSL/decoders/rffe/__init__.py
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libsigrokdecode4DSL/decoders/rffe/__init__.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) 2012 Uwe Hermann <uwe@hermann-uwe.de>
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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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RFFE(RF Front-End Control Interface)is a bidirectional, single-master
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bus using two signals (SCLK = serial clock line, SDATA = serial data line).
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'''
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from .pd import Decoder
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510
libsigrokdecode4DSL/decoders/rffe/pd.py
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libsigrokdecode4DSL/decoders/rffe/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) 2010-2016 Uwe Hermann <uwe@hermann-uwe.de>
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## Copyright (C) 2020 DreamSourceLab <support@dreamsourcelab.com>
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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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# TODO: Look into arbitration, collision detection, clock synchronisation, etc.
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# TODO: Implement support for inverting SDATA/SCLK levels (0->1 and 1->0).
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# TODO: Implement support for detecting various bus errors.
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import sigrokdecode as srd
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'''
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OUTPUT_PYTHON format:
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Packet:
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[SSC,<Command Frame>, <Data Frame>]
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SSC:Sequence Start Condition
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<Command Frame>:
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- 'SA' (Slave Address)
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- 'COMMAND' (command Key)
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- 'BC' (Byte Count)
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- 'P' (Parity)
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- 'ADDRESS' (Register Address)
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- 'DATA WRITE0' (Register 0 Write Data)
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<Data Frame>:
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- 'ADDRESS' (Register Address)
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- 'P' (Parity)
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- 'BP' (Bus Park)
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- 'DATA READ' (Data, read)
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- 'DATA WRITE' (Data, write)
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<Command Frame> : A Command Frame shall consist of a 4-bit Slave address field, an 8-bit command payload field, and a single parity bit.
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<Data Frame> : A Data or Address Frame shall consist of eight data bits or eight address bits, respectively, and a single parity bit.
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'''
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# cmd: [annotation-type-index, long annotation, short annotation]
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proto = {
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'SSC': [0, 'Sequence Start Condition', 'SSC'],
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'SA': [1, 'Slave Address', 'SA'],
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'ERW': [2, 'Extended Register Write', 'ERW'],
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'ERR': [3, 'Extended Register Read', 'ERR'],
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'ERWL': [4, 'Extended Register Write Long', 'ERWL'],
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'ERRL': [5, 'Extended Register Read Long', 'ERRL'],
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'RW': [6, 'Register Write', 'RW'],
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'RR': [7, 'Register Read', 'RR'],
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'R0W': [8, 'Register 0 Write', 'R0W'],
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'BC': [9, 'Byte', 'BC'],
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'P': [10, 'Parity', 'P'],
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'ADDRESS': [11, 'Address', 'A'],
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'BP': [12, 'Bus Pack', 'BP'],
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'DATA': [13, 'Data ', 'DATA'],
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'CMD_WARNINGS': [14, 'Command Warnings', 'CMD_WARN'],
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'BIC': [15, 'Bus Idle Condition ', 'BIC'],
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'BC_WARNINGS': [16, 'BC Warnings', 'BC_WARN'],
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'IJE': [17, 'Illegal Jump Edge', 'IJE_WAEN'],
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'PW': [18, 'Parity warnings', 'P_WAEN'],
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}
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class Decoder(srd.Decoder):
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api_version = 3
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id = 'rffe'
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name = 'RFFE'
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longname = 'RF Front-End Control Interface'
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desc = 'Two-wire, single-master, serial bus.'
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license = 'gplv2+'
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inputs = ['logic']
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outputs = ['rffe']
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tags = ['Embedded/industrial']
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channels = (
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{'id': 'sclk', 'type': 8, 'name': 'SCLK', 'desc': 'Serial clock line'},
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{'id': 'sdata', 'type': 108, 'name': 'SDATA', 'desc': 'Serial data line'},
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)
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options = (
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{'id': 'error_display', 'desc': 'Error display options',
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'default': 'display', 'values': ('display', 'not_display')},
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)
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annotations = (
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('7', 'ssc', 'Sequence Start Condition'),
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('6', 'sa', 'Slave Address'),
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('1', 'erw', 'Extended register write'),
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('5', 'err', 'Extended register read'),
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('0', 'erwl', 'Extended register write long'),
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('112', 'errl', 'Extended register read long'),
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('111', 'rw', 'Register write'),
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('110', 'rr', 'Register read'),
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('109', 'r0w', 'Register 0 write'),
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('108', 'bc', 'Byte'),
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('7', 'p', 'Parity'),
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('75', 'address', 'Address'),
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('70', 'bp', 'Bus pack'),
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('65', 'data', 'DATA'),
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('1000', 'Command warnings', 'Command warnings'),
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('50', 'Bus Idle Condition ', 'Bus Idle Condition '),
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('1000', 'BC warnings', 'BC warnings'),
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('1000', 'Illegal Jump Edge', 'IJE_WAEN'),
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('1000', 'Parity warnings', 'Parity warnings'),
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)
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annotation_rows = (
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('command-data', 'Command/Data', (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 , 11, 12, 13 ,15)),
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('warnings', 'Warnings', (14,16,17,18,)),
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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.samplerate = None
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self.ss = self.es = -1
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self.bitcount = 0
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self.databyte = 0
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self.state = 'FIND SSC'
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self.extended = -1
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self.cmdkey = 'NULL'
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self.BC = 0
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self.bits = 0
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self.Pcount = 0
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self.BPcount = 0
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self.ADDcount = 0
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self.BPss = 0
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self.SSCs = 0
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self.Pes = 0
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self.sdata = -1
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self.Pdata = -1
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self.parity = False
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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 start(self):
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self.out_ann = self.register(srd.OUTPUT_ANN)
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self._display = 1 if self.options['error_display'] == 'display' else 0
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def putx(self, data):
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self.put(self.ss, self.es, self.out_ann, data)
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def Parity(self):
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self.parity = True
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if self.Pcount == 1 :
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if self.cmdkey == 'ERW' :
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self.Pdata = self.Pdata + (0*(2**(self.Pkey+1)))
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if self.cmdkey == 'ERR' :
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self.Pdata = self.Pdata + (2*(2**(self.Pkey+1)))
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if self.cmdkey == 'ERWL' :
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self.Pdata = self.Pdata + (6*(2**(self.Pkey+1)))
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if self.cmdkey == 'ERRL' :
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self.Pdata = self.Pdata + (7*(2**(self.Pkey+1)))
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if self.cmdkey == 'RW' :
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self.Pdata = self.Pdata + (2*(2**(self.Pkey+1)))
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if self.cmdkey == 'RR' :
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self.Pdata = self.Pdata + (3*(2**(self.Pkey+1)))
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if self.cmdkey == 'R0W' :
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self.Pdata = self.Pdata + (1*(2**(self.Pkey+1)))
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while self.Pdata :
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self.parity = not self.parity
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self.Pdata = self.Pdata & (self.Pdata - 1)
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self.Pdata = self.Pkey = 0
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def handle_BP(self,cmd,state):
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self.ss = self.Pes
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self.es = self.samplenum
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self.putx([proto[cmd][0], proto[cmd][1:]])
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self.state = state
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def handle(self,cmd,state,key,key0):
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key1 = key
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if key > 7 :
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key = 7
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if self.bitcount == 0:
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self.DATAss = self.samplenum
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if self.bitcount < key:
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while True :
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if self._display :
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(sclk, sdata) = self.wait([{0: 'f'},{0: 'l', 1: 'e'}])
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if (self.matched & (0b1 << 0)):
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self.databyte <<= 1
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self.databyte |= sdata
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break
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if (self.matched & (0b1 << 1)):
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self.ss = self.samplenum
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(sclk, sdata) = self.wait([{0: 'f'},{0: 'l', 1: 'e'}])
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if (self.matched & (0b1 << 0)):
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self.es = self.samplenum
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self.putx([proto['IJE'][0], proto['IJE'][1:]])
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self.databyte <<= 1
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self.databyte |= sdata
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break
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if (self.matched & (0b1 << 1)):
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self.es = self.samplenum
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self.putx([proto['IJE'][0], proto['IJE'][1:]])
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else :
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(sclk, sdata) = self.wait({0: 'f'})
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self.databyte <<= 1
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self.databyte |= sdata
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break
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self.bitcount += 1
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return
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while True :
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if self._display :
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(sclk, sdata) = self.wait([{0: 'f'},{0: 'l', 1: 'e'}])
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if (self.matched & (0b1 << 0)):
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self.databyte <<= 1
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self.databyte |= sdata
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break
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if (self.matched & (0b1 << 1)):
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self.ss = self.samplenum
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(sclk, sdata) = self.wait([{0: 'f'},{0: 'l', 1: 'e'}])
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if (self.matched & (0b1 << 0)):
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self.es = self.samplenum
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self.putx([proto['IJE'][0], proto['IJE'][1:]])
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self.databyte <<= 1
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self.databyte |= sdata
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break
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if (self.matched & (0b1 << 1)):
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self.es = self.samplenum
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self.putx([proto['IJE'][0], proto['IJE'][1:]])
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else :
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(sclk, sdata) = self.wait({0: 'f'})
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self.databyte <<= 1
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self.databyte |= sdata
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break
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self.wait({0 : 'r'})
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d = self.databyte
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self.ss = self.DATAss
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self.es = self.samplenum
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if cmd != 'P':
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self.Pdata = d
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self.Pkey = key
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if cmd == 'BC':
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self.BC = d
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if self.cmdkey == 'ERW' or self.cmdkey == 'ERR' :
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if self.BC < 4 or self.BC > 16 :
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self.putx([proto['BC_WARNINGS'][0], proto['BC_WARNINGS'][1:]])
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self.init()
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return
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else :
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if self.BC < 1 or self.BC > 8 :
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self.putx([proto['BC_WARNINGS'][0], proto['BC_WARNINGS'][1:]])
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self.init()
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return
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if cmd == 'P':
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self.Pes = self.samplenum
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if self._display :
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self.Parity()
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if self.parity != d :
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self.putx([proto['PW'][0], proto['PW'][1:]])
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self.putx([proto[cmd][0], ['%s: %d' % (proto[cmd][1],d),
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'%s: %d' % (proto[cmd][2],d), '%d' % d]])
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self.bitcount = self.databyte = 0
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self.state = state
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return
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self.putx([proto[cmd][0], ['%s[%d:%d]: %02X' % (proto[cmd][1],key1,key0,d),
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'%s[%d:%d]: %02X' % (proto[cmd][2],key1,key0,d), '%02X' % d]])
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self.bitcount = self.databyte = 0
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if cmd == 'DATA':
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self.bits -= 8
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self.state = state
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def handle_CMD(self):
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if self.bitcount == 0:
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self.DATAss = self.samplenum
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(sclk, sdata) = self.wait({0: 'f'})
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if sdata :
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self.wait({0 : 'r'})
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self.cmdset('R0W','FIND DATA')
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return
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if self.bitcount == 1:
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if self.sdata :
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self.extended = 0
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else :
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self.extended = 1
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if self.bitcount == 2:
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if not self.extended :
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if self.sdata :
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self.cmdset('RR','FIND ADDRESS')
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return
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else :
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self.cmdset('RW','FIND ADDRESS')
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return
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if self.bitcount == 3:
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if not self.sdata :
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if self.extended :
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self.cmdset('ERR','FIND BTEY_COUNT')
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return
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else :
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self.cmdset('ERW','FIND BTEY_COUNT')
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return
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elif self.extended :
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self.ss = self.DATAss
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self.es = self.samplenum
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self.putx([proto['CMD_WARNINGS'][0], proto['CMD_WARNINGS'][1:]])
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self.init()
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return
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if self.bitcount == 4:
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if self.sdata :
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self.cmdset('ERRL','FIND BTEY_COUNT')
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return
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else :
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self.cmdset('ERWL','FIND BTEY_COUNT')
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return
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if self.bitcount <4:
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while True :
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if self._display :
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(sclk,self.sdata) = self.wait([{0: 'f'},{0: 'l', 1: 'e'}])
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if (self.matched & (0b1 << 0)):
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break
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if (self.matched & (0b1 << 1)):
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self.ss = self.samplenum
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(sclk,self.sdata) = self.wait([{0: 'f'},{0: 'l', 1: 'e'}])
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if (self.matched & (0b1 << 0)):
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self.es = self.samplenum
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self.putx([proto['IJE'][0], proto['IJE'][1:]])
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break
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if (self.matched & (0b1 << 1)):
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self.es = self.samplenum
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self.putx([proto['IJE'][0], proto['IJE'][1:]])
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else :
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(sclk,self.sdata) = self.wait({0: 'f'})
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break
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self.wait({0 : 'r'})
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self.bitcount += 1
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||||
|
||||
def cmdset(self,cmd,state):
|
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self.ss = self.DATAss
|
||||
self.es = self.samplenum
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self.putx([proto[cmd][0], proto[cmd][1:]])
|
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self.state = state
|
||||
self.bitcount = 0
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||||
self.extended = -1
|
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self.cmdkey = cmd
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def initBP(self,sclk,sdata,state,key):
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self.handle_BP('BP',state)
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self.state = state
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if key :
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self.init()
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def init(self):
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self.cmdkey = 'NULL'
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self.ADDcount = 0
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self.Pcount = 0
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self.BPcount = 0
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self.BC = 0
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self.bitcount = 0
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self.Pes = 0
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self.state = 'FIND SSC'
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|
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def decode(self):
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while True:
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if self.state == 'FIND SSC':
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self.wait({0: 'l', 1: 'r'})
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self.BPss = self.samplenum
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self.wait([{0: 'h'},{0: 'l', 1: 'f'}])
|
||||
if (self.matched & (0b1 << 0)):
|
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continue
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||||
if (self.matched & (0b1 << 1)):
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||||
self.wait([{0: 'l', 1: 'e'},{0: 'r'}])
|
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if (self.matched & (0b1 << 0)):
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continue
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if (self.matched & (0b1 << 1)):
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self.ss,self.es = self.BPss,self.samplenum
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self.putx([proto['SSC'][0], proto['SSC'][1:]])
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self.state = 'FIND SLAVE ADDRESS'
|
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elif self.state == 'FIND SLAVE ADDRESS':
|
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self.handle('SA','FIND COMMAND',3,0)
|
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elif self.state == 'FIND COMMAND':
|
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self.handle_CMD()
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elif self.state == 'FIND BTEY_COUNT':
|
||||
if self.cmdkey == 'ERW' or self.cmdkey == 'ERR' :
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self.handle('BC','FIND PARITY',3,0)
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else :
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self.handle('BC','FIND PARITY',2,0)
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self.bits = self.BC*8
|
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|
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elif self.state == 'FIND ADDRESS':
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if self.cmdkey == 'RW' or self.cmdkey == 'RR' :
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self.handle('ADDRESS','FIND PARITY',4,0)
|
||||
elif self.cmdkey == 'ERR' or self.cmdkey == 'ERW' :
|
||||
self.handle('ADDRESS','FIND PARITY',7,0)
|
||||
else :
|
||||
if self.Pcount == 1 :
|
||||
self.handle('ADDRESS','FIND PARITY',15,8)
|
||||
else :
|
||||
self.handle('ADDRESS','FIND PARITY',7,0)
|
||||
|
||||
elif self.state == 'FIND DATA':
|
||||
if self.cmdkey == 'R0W' :
|
||||
self.handle('DATA','FIND PARITY',6,0)
|
||||
elif self.cmdkey == 'RW' or self.cmdkey == 'RR' :
|
||||
self.handle('DATA','FIND PARITY',7,0)
|
||||
else :
|
||||
self.handle('DATA','FIND PARITY',self.bits-1,self.bits-8)
|
||||
|
||||
elif self.state == 'FIND PARITY':
|
||||
self.Pcount += 1
|
||||
self.handle('P','NULL',0,0)
|
||||
if self.cmdkey == 'R0W' :
|
||||
self.state = 'FIND BUS_PARK'
|
||||
|
||||
elif self.cmdkey == 'ERW' :
|
||||
if self.Pcount == 1 :
|
||||
self.ADDcount,self.state = 1,'FIND ADDRESS'
|
||||
elif self.Pcount == 2 :
|
||||
self.state = 'FIND DATA'
|
||||
elif self.Pcount == self.BC + 2 :
|
||||
self.state = 'FIND BUS_PARK'
|
||||
continue
|
||||
elif self.Pcount > 2 :
|
||||
self.state = 'FIND DATA'
|
||||
|
||||
elif self.cmdkey == 'ERR' :
|
||||
if self.Pcount == 1 :
|
||||
self.ADDcount,self.state = 1,'FIND ADDRESS'
|
||||
elif self.Pcount == 2 :
|
||||
self.BPcount,self.state = 1,'FIND BUS_PARK'
|
||||
elif self.Pcount == self.BC + 2 :
|
||||
self.BPcount =2
|
||||
self.state = 'FIND BUS_PARK'
|
||||
continue
|
||||
elif self.Pcount > 2 :
|
||||
self.state = 'FIND DATA'
|
||||
|
||||
elif self.cmdkey == 'ERWL' :
|
||||
if self.Pcount == 1 :
|
||||
self.ADDcount,self.state = 2,'FIND ADDRESS'
|
||||
elif self.Pcount == 2 :
|
||||
self.ADDcount,self.state = 1,'FIND ADDRESS'
|
||||
elif self.Pcount == 3 :
|
||||
self.state = 'FIND DATA'
|
||||
elif self.Pcount == self.BC + 3 :
|
||||
self.state = 'FIND BUS_PARK'
|
||||
continue
|
||||
elif self.Pcount > 3 :
|
||||
self.state = 'FIND DATA'
|
||||
|
||||
elif self.cmdkey == 'ERRL' :
|
||||
if self.Pcount == 1 :
|
||||
self.ADDcount,self.state = 2,'FIND ADDRESS'
|
||||
elif self.Pcount == 2 :
|
||||
self.ADDcount,self.state = 1,'FIND ADDRESS'
|
||||
elif self.Pcount == 3 :
|
||||
self.BPcount,self.state = 1,'FIND BUS_PARK'
|
||||
elif self.Pcount == self.BC + 3 :
|
||||
self.BPcount =2
|
||||
self.state = 'FIND BUS_PARK'
|
||||
continue
|
||||
elif self.Pcount > 3 :
|
||||
self.state = 'FIND DATA'
|
||||
|
||||
elif self.cmdkey == 'RW' :
|
||||
if self.Pcount == 1 :
|
||||
self.state = 'FIND DATA'
|
||||
elif self.Pcount == 2 :
|
||||
self.BPcount,self.state = 1,'FIND BUS_PARK'
|
||||
|
||||
elif self.cmdkey == 'RR' :
|
||||
self.state = 'FIND BUS_PARK'
|
||||
self.BPcount = 1 if (self.Pcount == 1) else 2
|
||||
|
||||
elif self.state == 'FIND BUS_PARK':
|
||||
(sclk, sdata) = self.wait({0: 'l', 1: 'l'})
|
||||
self.ss = self.samplenum
|
||||
if self.cmdkey == 'ERR' or self.cmdkey == 'ERRL' or self.cmdkey == 'RR':
|
||||
key = 0 if (self.BPcount == 1) else 1
|
||||
self.initBP(sclk,sdata,'FIND DATA',key)
|
||||
else :
|
||||
self.initBP(sclk,sdata,'FIND SSC',1)
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user