diff options
Diffstat (limited to 'decoders')
| -rw-r--r-- | decoders/lpc/__init__.py | 3 | ||||
| -rw-r--r-- | decoders/lpc/pd.py | 46 |
2 files changed, 21 insertions, 28 deletions
diff --git a/decoders/lpc/__init__.py b/decoders/lpc/__init__.py index 96d6e70..e03c27e 100644 --- a/decoders/lpc/__init__.py +++ b/decoders/lpc/__init__.py @@ -20,9 +20,6 @@ ''' Low-Pin Count protocol decoder. - -Details: -TODO ''' from .pd import * diff --git a/decoders/lpc/pd.py b/decoders/lpc/pd.py index 61c6383..398bf9b 100644 --- a/decoders/lpc/pd.py +++ b/decoders/lpc/pd.py @@ -1,7 +1,7 @@ ## ## This file is part of the libsigrokdecode project. ## -## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de> +## Copyright (C) 2012-2013 Uwe Hermann <uwe@hermann-uwe.de> ## ## 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 @@ -149,6 +149,9 @@ class Decoder(srd.Decoder): def report(self): pass + def putb(self, data): + self.put(0, 0, self.out_ann, data) + def handle_get_start(self, lad, lad_bits, lframe): # LAD[3:0]: START field (1 clock cycle). @@ -157,14 +160,13 @@ class Decoder(srd.Decoder): # multiple clocks, and we output all START fields that occur, even # though the peripherals are supposed to ignore all but the last one. s = fields['START'][lad] - self.put(0, 0, self.out_ann, [0, [s]]) + self.putb([0, [s]]) # Output a warning if LAD[3:0] changes while LFRAME# is low. # TODO if (self.lad != -1 and self.lad != lad): - self.put(0, 0, self.out_ann, - [0, ['Warning: LAD[3:0] changed while ' - 'LFRAME# was asserted']]) + self.putb([0, ['Warning: LAD[3:0] changed while ' + 'LFRAME# was asserted']]) # LFRAME# is asserted (low). Wait until it gets de-asserted again # (the host is allowed to keep it asserted multiple clocks). @@ -181,11 +183,10 @@ class Decoder(srd.Decoder): # TODO: Warning/error on invalid cycle types. if self.cycle_type == 'Reserved': - self.put(0, 0, self.out_ann, - [0, ['Warning: Invalid cycle type (%s)' % lad_bits]]) + self.putb([0, ['Warning: Invalid cycle type (%s)' % lad_bits]]) # ... - self.put(0, 0, self.out_ann, [0, ['Cycle type: %s' % self.cycle_type]]) + self.putb([0, ['Cycle type: %s' % self.cycle_type]]) self.state = 'GET ADDR' self.addr = 0 @@ -213,7 +214,7 @@ class Decoder(srd.Decoder): return s = 'Address: 0x%%0%dx' % addr_nibbles - self.put(0, 0, self.out_ann, [0, [s % self.addr]]) + self.putb([0, [s % self.addr]]) self.state = 'GET TAR' self.tar_count = 0 @@ -221,17 +222,15 @@ class Decoder(srd.Decoder): def handle_get_tar(self, lad, lad_bits): # LAD[3:0]: First TAR (turn-around) field (2 clock cycles). - self.put(0, 0, self.out_ann, [0, ['TAR, cycle %d: %s' - % (self.tarcount, lad_bits)]]) + self.putb([0, ['TAR, cycle %d: %s' % (self.tarcount, lad_bits)]]) # On the first TAR clock cycle LAD[3:0] is driven to 1111 by # either the host or peripheral. On the second clock cycle, # the host or peripheral tri-states LAD[3:0], but its value # should still be 1111, due to pull-ups on the LAD lines. if lad_bits != '1111': - self.put(0, 0, self.out_ann, - [0, ['Warning: TAR, cycle %d: %s (expected 1111)' - % (self.tarcount, lad_bits)]]) + self.putb([0, ['Warning: TAR, cycle %d: %s (expected 1111)' % \ + (self.tarcount, lad_bits)]]) if (self.tarcount != 1): self.tarcount += 1 @@ -248,11 +247,10 @@ class Decoder(srd.Decoder): # TODO: Warnings if reserved value are seen? if self.cycle_type == 'Reserved': - self.put(0, 0, self.out_ann, [0, ['Warning: SYNC, cycle %d: %s ' - '(reserved value)' % (self.synccount, self.sync_val)]]) + self.putb([0, ['Warning: SYNC, cycle %d: %s (reserved value)' % \ + (self.synccount, self.sync_val)]]) - self.put(0, 0, self.out_ann, [0, ['SYNC, cycle %d: %s' - % (self.synccount, self.sync_val)]]) + self.putb([0, ['SYNC, cycle %d: %s' % (self.synccount, self.sync_val)]]) # TODO @@ -274,7 +272,7 @@ class Decoder(srd.Decoder): self.cycle_count += 1 return - self.put(0, 0, self.out_ann, [0, ['DATA: 0x%02x' % self.databyte]]) + self.putb([0, ['DATA: 0x%02x' % self.databyte]]) self.cycle_count = 0 self.state = 'GET TAR2' @@ -282,17 +280,15 @@ class Decoder(srd.Decoder): def handle_get_tar2(self, lad, lad_bits): # LAD[3:0]: Second TAR field (2 clock cycles). - self.put(0, 0, self.out_ann, [0, ['TAR, cycle %d: %s' - % (self.tarcount, lad_bits)]]) + self.putb([0, ['TAR, cycle %d: %s' % (self.tarcount, lad_bits)]]) # On the first TAR clock cycle LAD[3:0] is driven to 1111 by # either the host or peripheral. On the second clock cycle, # the host or peripheral tri-states LAD[3:0], but its value # should still be 1111, due to pull-ups on the LAD lines. if lad_bits != '1111': - self.put(0, 0, self.out_ann, - [0, ['Warning: TAR, cycle %d: %s (expected 1111)' - % (self.tarcount, lad_bits)]]) + self.putb([0, ['Warning: TAR, cycle %d: %s (expected 1111)' + % (self.tarcount, lad_bits)]]) if (self.tarcount != 1): self.tarcount += 1 @@ -326,7 +322,7 @@ class Decoder(srd.Decoder): if self.state != 'IDLE': lad = (lad3 << 3) | (lad2 << 2) | (lad1 << 1) | lad0 lad_bits = bin(lad)[2:].zfill(4) - # self.put(0, 0, self.out_ann, [0, ['LAD: %s' % lad_bits]]) + # self.putb([0, ['LAD: %s' % lad_bits]]) # TODO: Only memory read/write is currently supported/tested. |