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##
## This file is part of the libsigrokdecode project.
##
## 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
## 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, see <http://www.gnu.org/licenses/>.
##
import sigrokdecode as srd
# ...
RX = 0
TX = 1
class Decoder(srd.Decoder):
api_version = 3
id = 'pan1321'
name = 'PAN1321'
longname = 'Panasonic PAN1321'
desc = 'Bluetooth RF module with Serial Port Profile (SPP).'
license = 'gplv2+'
inputs = ['uart']
outputs = []
tags = ['Wireless/RF']
annotations = (
('text-verbose', 'Human-readable text (verbose)'),
('text', 'Human-readable text'),
('warnings', 'Human-readable warnings'),
)
def __init__(self):
self.reset()
def reset(self):
self.cmd = ['', '']
self.ss_block = None
def start(self):
self.out_ann = self.register(srd.OUTPUT_ANN)
def putx(self, data):
self.put(self.ss_block, self.es_block, self.out_ann, data)
def handle_host_command(self, rxtx, s):
if s.startswith('AT+JAAC'):
# AT+JAAC=<auto_accept> (0 or 1)
p = s[s.find('=') + 1:]
if p not in ('0', '1'):
self.putx([2, ['Warning: Invalid JAAC parameter "%s"' % p]])
return
x = 'Auto' if (p == '1') else 'Don\'t auto'
self.putx([0, ['%s-accept new connections' % x]])
self.putx([1, ['%s-accept connections' % x]])
elif s.startswith('AT+JPRO'):
# AT+JPRO=<mode> (0 or 1)
p = s[s.find('=') + 1:]
if p not in ('0', '1'):
self.putx([2, ['Warning: Invalid JPRO parameter "%s"' % p]])
return
onoff = 'off' if (p == '0') else 'on'
x = 'Leaving' if (p == '0') else 'Entering'
self.putx([0, ['%s production mode' % x]])
self.putx([1, ['Production mode = %s' % onoff]])
elif s.startswith('AT+JRES'):
# AT+JRES
if s != 'AT+JRES': # JRES has no params.
self.putx([2, ['Warning: Invalid JRES usage.']])
return
self.putx([0, ['Triggering a software reset']])
self.putx([1, ['Reset']])
elif s.startswith('AT+JSDA'):
# AT+JSDA=<l>,<d> (l: length in bytes, d: data)
# l is (max?) 3 decimal digits and ranges from 1 to MTU size.
# Data can be ASCII or binary values (l bytes total).
l, d = s[s.find('=') + 1:].split(',')
if not l.isnumeric():
self.putx([2, ['Warning: Invalid data length "%s".' % l]])
if int(l) != len(d):
self.putx([2, ['Warning: Data length mismatch (%d != %d).' % \
(int(l), len(d))]])
# TODO: Warn if length > MTU size (which is firmware-dependent
# and is negotiated by both Bluetooth devices upon connection).
b = ''.join(['%02x ' % ord(c) for c in d])[:-1]
self.putx([0, ['Sending %d data bytes: %s' % (int(l), b)]])
self.putx([1, ['Send %d = %s' % (int(l), b)]])
elif s.startswith('AT+JSEC'):
# AT+JSEC=<secmode>,<linkkey_info>,<pintype>,<pinlen>,<pin>
# secmode: Security mode 1 or 3 (default).
# linkkey_info: Must be 1 or 2. Has no function according to docs.
# pintype: 1: variable pin (default), 2: fixed pin.
# pinlen: PIN length (2 decimal digits). Max. PIN length is 16.
# pin: The Bluetooth PIN ('pinlen' chars). Used if pintype=2.
# Note: AT+JSEC (if used) must be the first command after reset.
# TODO: Parse all the other parameters.
pin = s[-4:]
self.putx([0, ['Host set the Bluetooth PIN to "' + pin + '"']])
self.putx([1, ['PIN = ' + pin]])
elif s.startswith('AT+JSLN'):
# AT+JSLN=<namelen>,<name>
# namelen: Friendly name length (2 decimal digits). Max. len is 18.
# name: The Bluetooth "friendly name" ('namelen' ASCII characters).
name = s[s.find(',') + 1:]
self.putx([0, ['Host set the Bluetooth name to "' + name + '"']])
self.putx([1, ['BT name = ' + name]])
else:
self.putx([0, ['Host sent unsupported command: %s' % s]])
self.putx([1, ['Unsupported command: %s' % s]])
def handle_device_reply(self, rxtx, s):
if s == 'ROK':
self.putx([0, ['Device initialized correctly']])
self.putx([1, ['Init']])
elif s == 'OK':
self.putx([0, ['Device acknowledged last command']])
self.putx([1, ['ACK']])
elif s.startswith('ERR'):
error = s[s.find('=') + 1:]
self.putx([0, ['Device sent error code ' + error]])
self.putx([1, ['ERR = ' + error]])
else:
self.putx([0, ['Device sent an unknown reply: %s' % s]])
self.putx([1, ['Unknown reply: %s' % s]])
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
# We're only interested in the byte value (not individual bits).
pdata = pdata[0]
# If this is the start of a command/reply, remember the start sample.
if self.cmd[rxtx] == '':
self.ss_block = ss
# 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][-2:] != '\r\n':
return
# Handle host commands and device replies.
# We remove trailing \r\n from the strings before handling them.
self.es_block = es
if rxtx == RX:
self.handle_device_reply(rxtx, self.cmd[rxtx][:-2])
elif rxtx == TX:
self.handle_host_command(rxtx, self.cmd[rxtx][:-2])
self.cmd[rxtx] = ''
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