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##
## This file is part of the sigrok project.
##
## Copyright (C) 2012 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
## 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, write to the Free Software
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
# Panasonic PAN1321 Bluetooth module protocol decoder
import sigrokdecode as srd
# Annotation feed formats
ANN_ASCII = 0
# ...
RX = 0
TX = 1
class Decoder(srd.Decoder):
api_version = 1
id = 'pan1321'
name = 'PAN1321'
longname = 'Panasonic PAN1321'
desc = 'TODO.'
license = 'gplv2+'
inputs = ['uart']
outputs = ['pan1321']
probes = []
optional_probes = []
options = {}
annotations = [
['ASCII', 'TODO: description'],
]
def __init__(self, **kwargs):
self.cmd = ['', '']
def start(self, metadata):
# self.out_proto = self.add(srd.OUTPUT_PROTO, 'pan1321')
self.out_ann = self.add(srd.OUTPUT_ANN, 'pan1321')
def report(self):
pass
def handle_host_command(self, ss, es, rxtx, s):
if s.startswith('AT+JSEC'):
pin = s[-4:]
self.put(ss, es, self.out_ann,
[ANN_ASCII, ['Host set the Bluetooth PIN to ' + pin]])
elif s.startswith('AT+JSLN'):
name = s[s.find(',') + 1:]
self.put(ss, es, self.out_ann,
[ANN_ASCII, ['Host set the Bluetooth name to ' + name]])
else:
self.put(ss, es, self.out_ann,
[ANN_ASCII, ['Host sent unsupported command: %s' % s]])
self.cmd[rxtx] = ''
def handle_device_reply(self, ss, es, rxtx, s):
if s == 'ROK':
self.put(ss, es, self.out_ann,
[ANN_ASCII, ['Device initialized correctly']])
elif s == 'OK':
self.put(ss, es, self.out_ann,
[ANN_ASCII, ['Device acknowledged last command']])
elif s.startswith('ERR'):
error = s[s.find('=') + 1:]
self.put(ss, es, self.out_ann,
[ANN_ASCII, ['Device sent error code ' + error]])
else:
self.put(ss, es, self.out_ann,
[ANN_ASCII, ['Device sent an unknown reply: %s' % s]])
self.cmd[rxtx] = ''
def decode(self, ss, es, data):
ptype, rxtx, pdata = data
# For now, ignore all UART packets except the actual data packets.
if ptype != 'DATA':
return
# Append a new (ASCII) byte to the currently built/parsed command.
self.cmd[rxtx] += chr(pdata)
# Get packets/bytes until an \r\n sequence is found (end of command).
if self.cmd[rxtx][-1:] != '\n':
return
# Handle host commands and device replies.
# We remove trailing \r\n from the strings before handling them.
if rxtx == RX:
self.handle_device_reply(ss, es, rxtx, self.cmd[rxtx][:-2])
elif rxtx == TX:
self.handle_host_command(ss, es, rxtx, self.cmd[rxtx][:-2])
else:
raise Exception('Invalid rxtx value: %d' % rxtx)
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