X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fspi%2Fpd.py;h=47bbe322a3342e8c5ee548c3e1c8c947f3725b39;hb=29f8bb7b787ff8bc2a2e55d3de0b53452e73c6af;hp=10857866f4cad8ebdc41fe58600cdb688b8d6420;hpb=24c74fd30fb161837c5f8b01baf3c0fe2dfa4ed5;p=libsigrokdecode.git diff --git a/decoders/spi/pd.py b/decoders/spi/pd.py index 1085786..47bbe32 100644 --- a/decoders/spi/pd.py +++ b/decoders/spi/pd.py @@ -1,8 +1,8 @@ ## -## This file is part of the sigrok project. +## This file is part of the libsigrokdecode project. ## ## Copyright (C) 2011 Gareth McMullin -## Copyright (C) 2012 Uwe Hermann +## Copyright (C) 2012-2013 Uwe Hermann ## ## 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 @@ -33,9 +33,6 @@ spi_mode = { (1, 1): 3, # Mode 3 } -# Annotation formats -ANN_HEX = 0 - class Decoder(srd.Decoder): api_version = 1 id = 'spi' @@ -60,9 +57,13 @@ class Decoder(srd.Decoder): 'cpha': ['Clock phase', 0], 'bitorder': ['Bit order within the SPI data', 'msb-first'], 'wordsize': ['Word size of SPI data', 8], # 1-64? + 'format': ['Data format', 'hex'], } annotations = [ - ['Hex', 'SPI data bytes in hex format'], + ['MISO/MOSI data', 'MISO/MOSI SPI data'], + ['MISO data', 'MISO SPI data'], + ['MOSI data', 'MOSI SPI data'], + ['Warnings', 'Human-readable warnings'], ] def __init__(self): @@ -71,6 +72,7 @@ class Decoder(srd.Decoder): self.mosidata = 0 self.misodata = 0 self.bytesreceived = 0 + self.startsample = -1 self.samplenum = -1 self.cs_was_deasserted_during_data_word = 0 self.oldcs = -1 @@ -83,6 +85,12 @@ class Decoder(srd.Decoder): def report(self): return 'SPI: %d bytes received' % self.bytesreceived + def putpw(self, data): + self.put(self.startsample, self.samplenum, self.out_proto, data) + + def putw(self, data): + self.put(self.startsample, self.samplenum, self.out_ann, data) + def decode(self, ss, es, data): # TODO: Either MISO or MOSI could be optional. CS# is optional. for (self.samplenum, pins) in data: @@ -96,8 +104,6 @@ class Decoder(srd.Decoder): # Send all CS# pin value changes. self.put(self.samplenum, self.samplenum, self.out_proto, ['CS-CHANGE', self.oldcs, cs]) - self.put(self.samplenum, self.samplenum, self.out_ann, - [0, ['CS-CHANGE: %d->%d' % (self.oldcs, cs)]]) self.oldcs = cs # Ignore sample if the clock pin hasn't changed. @@ -119,7 +125,7 @@ class Decoder(srd.Decoder): # If this is the first bit, save its sample number. if self.bitcount == 0: - self.start_sample = self.samplenum + self.startsample = self.samplenum active_low = (self.options['cs_polarity'] == 'active-low') deasserted = cs if active_low else not cs if deasserted: @@ -145,16 +151,13 @@ class Decoder(srd.Decoder): if self.bitcount != ws: continue - self.put(self.start_sample, self.samplenum, self.out_proto, - ['DATA', self.mosidata, self.misodata]) - self.put(self.start_sample, self.samplenum, self.out_ann, - [ANN_HEX, ['MOSI: 0x%02x, MISO: 0x%02x' % (self.mosidata, - self.misodata)]]) + self.putpw(['DATA', self.mosidata, self.misodata]) + self.putw([0, ['%02X/%02X' % (self.mosidata, self.misodata)]]) + self.putw([1, ['%02X' % self.misodata]]) + self.putw([2, ['%02X' % self.mosidata]]) if self.cs_was_deasserted_during_data_word: - self.put(self.start_sample, self.samplenum, self.out_ann, - [ANN_HEX, ['WARNING: CS# was deasserted during this ' - 'SPI data byte!']]) + self.putw([3, ['CS# was deasserted during this data word!']]) # Reset decoder state. self.mosidata = 0