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instance.c: Avoid 4 unneeded forward declarations.
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1##
2## This file is part of the libsigrokdecode project.
3##
4## Copyright (C) 2012-2013 Uwe Hermann <uwe@hermann-uwe.de>
5##
6## This program is free software; you can redistribute it and/or modify
7## it under the terms of the GNU General Public License as published by
8## the Free Software Foundation; either version 2 of the License, or
9## (at your option) any later version.
10##
11## This program is distributed in the hope that it will be useful,
12## but WITHOUT ANY WARRANTY; without even the implied warranty of
13## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14## GNU General Public License for more details.
15##
16## You should have received a copy of the GNU General Public License
17## along with this program; if not, see <http://www.gnu.org/licenses/>.
18##
19
20import sigrokdecode as srd
21
22# ...
23RX = 0
24TX = 1
25
26class Decoder(srd.Decoder):
27 api_version = 3
28 id = 'pan1321'
29 name = 'PAN1321'
30 longname = 'Panasonic PAN1321'
31 desc = 'Bluetooth RF module with Serial Port Profile (SPP).'
32 license = 'gplv2+'
33 inputs = ['uart']
34 outputs = ['pan1321']
35 annotations = (
36 ('text-verbose', 'Human-readable text (verbose)'),
37 ('text', 'Human-readable text'),
38 ('warnings', 'Human-readable warnings'),
39 )
40
41 def __init__(self):
42 self.reset()
43
44 def reset(self):
45 self.cmd = ['', '']
46 self.ss_block = None
47
48 def start(self):
49 self.out_ann = self.register(srd.OUTPUT_ANN)
50
51 def putx(self, data):
52 self.put(self.ss_block, self.es_block, self.out_ann, data)
53
54 def handle_host_command(self, rxtx, s):
55 if s.startswith('AT+JAAC'):
56 # AT+JAAC=<auto_accept> (0 or 1)
57 p = s[s.find('=') + 1:]
58 if p not in ('0', '1'):
59 self.putx([2, ['Warning: Invalid JAAC parameter "%s"' % p]])
60 return
61 x = 'Auto' if (p == '1') else 'Don\'t auto'
62 self.putx([0, ['%s-accept new connections' % x]])
63 self.putx([1, ['%s-accept connections' % x]])
64 elif s.startswith('AT+JPRO'):
65 # AT+JPRO=<mode> (0 or 1)
66 p = s[s.find('=') + 1:]
67 if p not in ('0', '1'):
68 self.putx([2, ['Warning: Invalid JPRO parameter "%s"' % p]])
69 return
70 onoff = 'off' if (p == '0') else 'on'
71 x = 'Leaving' if (p == '0') else 'Entering'
72 self.putx([0, ['%s production mode' % x]])
73 self.putx([1, ['Production mode = %s' % onoff]])
74 elif s.startswith('AT+JRES'):
75 # AT+JRES
76 if s != 'AT+JRES': # JRES has no params.
77 self.putx([2, ['Warning: Invalid JRES usage.']])
78 return
79 self.putx([0, ['Triggering a software reset']])
80 self.putx([1, ['Reset']])
81 elif s.startswith('AT+JSDA'):
82 # AT+JSDA=<l>,<d> (l: length in bytes, d: data)
83 # l is (max?) 3 decimal digits and ranges from 1 to MTU size.
84 # Data can be ASCII or binary values (l bytes total).
85 l, d = s[s.find('=') + 1:].split(',')
86 if not l.isnumeric():
87 self.putx([2, ['Warning: Invalid data length "%s".' % l]])
88 if int(l) != len(d):
89 self.putx([2, ['Warning: Data length mismatch (%d != %d).' % \
90 (int(l), len(d))]])
91 # TODO: Warn if length > MTU size (which is firmware-dependent
92 # and is negotiated by both Bluetooth devices upon connection).
93 b = ''.join(['%02x ' % ord(c) for c in d])[:-1]
94 self.putx([0, ['Sending %d data bytes: %s' % (int(l), b)]])
95 self.putx([1, ['Send %d = %s' % (int(l), b)]])
96 elif s.startswith('AT+JSEC'):
97 # AT+JSEC=<secmode>,<linkkey_info>,<pintype>,<pinlen>,<pin>
98 # secmode: Security mode 1 or 3 (default).
99 # linkkey_info: Must be 1 or 2. Has no function according to docs.
100 # pintype: 1: variable pin (default), 2: fixed pin.
101 # pinlen: PIN length (2 decimal digits). Max. PIN length is 16.
102 # pin: The Bluetooth PIN ('pinlen' chars). Used if pintype=2.
103 # Note: AT+JSEC (if used) must be the first command after reset.
104 # TODO: Parse all the other parameters.
105 pin = s[-4:]
106 self.putx([0, ['Host set the Bluetooth PIN to "' + pin + '"']])
107 self.putx([1, ['PIN = ' + pin]])
108 elif s.startswith('AT+JSLN'):
109 # AT+JSLN=<namelen>,<name>
110 # namelen: Friendly name length (2 decimal digits). Max. len is 18.
111 # name: The Bluetooth "friendly name" ('namelen' ASCII characters).
112 name = s[s.find(',') + 1:]
113 self.putx([0, ['Host set the Bluetooth name to "' + name + '"']])
114 self.putx([1, ['BT name = ' + name]])
115 else:
116 self.putx([0, ['Host sent unsupported command: %s' % s]])
117 self.putx([1, ['Unsupported command: %s' % s]])
118
119 def handle_device_reply(self, rxtx, s):
120 if s == 'ROK':
121 self.putx([0, ['Device initialized correctly']])
122 self.putx([1, ['Init']])
123 elif s == 'OK':
124 self.putx([0, ['Device acknowledged last command']])
125 self.putx([1, ['ACK']])
126 elif s.startswith('ERR'):
127 error = s[s.find('=') + 1:]
128 self.putx([0, ['Device sent error code ' + error]])
129 self.putx([1, ['ERR = ' + error]])
130 else:
131 self.putx([0, ['Device sent an unknown reply: %s' % s]])
132 self.putx([1, ['Unknown reply: %s' % s]])
133
134 def decode(self, ss, es, data):
135 ptype, rxtx, pdata = data
136
137 # For now, ignore all UART packets except the actual data packets.
138 if ptype != 'DATA':
139 return
140
141 # We're only interested in the byte value (not individual bits).
142 pdata = pdata[0]
143
144 # If this is the start of a command/reply, remember the start sample.
145 if self.cmd[rxtx] == '':
146 self.ss_block = ss
147
148 # Append a new (ASCII) byte to the currently built/parsed command.
149 self.cmd[rxtx] += chr(pdata)
150
151 # Get packets/bytes until an \r\n sequence is found (end of command).
152 if self.cmd[rxtx][-2:] != '\r\n':
153 return
154
155 # Handle host commands and device replies.
156 # We remove trailing \r\n from the strings before handling them.
157 self.es_block = es
158 if rxtx == RX:
159 self.handle_device_reply(rxtx, self.cmd[rxtx][:-2])
160 elif rxtx == TX:
161 self.handle_host_command(rxtx, self.cmd[rxtx][:-2])
162
163 self.cmd[rxtx] = ''