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1 | ## | |
2 | ## This file is part of the sigrok project. | |
3 | ## | |
4 | ## Copyright (C) 2012 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, write to the Free Software | |
18 | ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | ## | |
20 | ||
21 | # | |
22 | # Panasonic PAN1321 Bluetooth module protocol decoder | |
23 | # | |
24 | # TODO | |
25 | # | |
26 | ||
27 | import sigrokdecode as srd | |
28 | ||
29 | # Annotation feed formats | |
30 | ANN_ASCII = 0 | |
31 | ||
32 | # UART 'data' packet type. | |
33 | T_DATA = 1 | |
34 | ||
35 | # ... | |
36 | RX = 0 | |
37 | TX = 1 | |
38 | ||
39 | class Decoder(srd.Decoder): | |
40 | id = 'pan1321' | |
41 | name = 'PAN1321' | |
42 | longname = 'Panasonic PAN1321' | |
43 | desc = 'TODO.' | |
44 | longdesc = 'TODO.' | |
45 | license = 'gplv2+' | |
46 | inputs = ['uart'] | |
47 | outputs = ['pan1321'] | |
48 | probes = [] | |
49 | options = {} | |
50 | annotations = [ | |
51 | ['ASCII', 'TODO: description'], | |
52 | ] | |
53 | ||
54 | def __init__(self, **kwargs): | |
55 | self.cmd = ['', ''] | |
56 | ||
57 | def start(self, metadata): | |
58 | # self.out_proto = self.add(srd.OUTPUT_PROTO, 'pan1321') | |
59 | self.out_ann = self.add(srd.OUTPUT_ANN, 'pan1321') | |
60 | ||
61 | def report(self): | |
62 | pass | |
63 | ||
64 | def handle_host_command(self, ss, es, rxtx, s): | |
65 | if s.startswith('AT+JSEC'): | |
66 | pin = s[s.find('\r\n') - 4:len(s) - 2] | |
67 | self.put(ss, es, self.out_ann, | |
68 | [ANN_ASCII, ['Host set the Bluetooth PIN to ' + pin]]) | |
69 | elif s.startswith('AT+JSLN'): | |
70 | name = s[s.find(',') + 1:-2] | |
71 | self.put(ss, es, self.out_ann, | |
72 | [ANN_ASCII, ['Host set the Bluetooth name to ' + name]]) | |
73 | else: | |
74 | self.put(ss, es, self.out_ann, | |
75 | [ANN_ASCII, ['Host sent unsupported command']]) | |
76 | self.cmd[rxtx] = '' | |
77 | ||
78 | def handle_device_reply(self, ss, es, rxtx, s): | |
79 | if s == 'ROK\r\n': | |
80 | self.put(ss, es, self.out_ann, | |
81 | [ANN_ASCII, ['Device initialized correctly']]) | |
82 | elif s == 'OK\r\n': | |
83 | self.put(ss, es, self.out_ann, | |
84 | [ANN_ASCII, ['Device acknowledged last command']]) | |
85 | elif s.startswith('ERR'): | |
86 | error = s[s.find('=') + 1:] | |
87 | self.put(ss, es, self.out_ann, | |
88 | [ANN_ASCII, ['Device sent error code ' + error]]) | |
89 | else: | |
90 | self.put(ss, es, self.out_ann, | |
91 | [ANN_ASCII, ['Device sent an unknown reply']]) | |
92 | self.cmd[rxtx] = '' | |
93 | ||
94 | def decode(self, ss, es, data): | |
95 | ptype, rxtx, pdata = data | |
96 | ||
97 | # For now, ignore all UART packets except the actual data packets. | |
98 | if ptype != T_DATA: | |
99 | return | |
100 | ||
101 | # Append a new (ASCII) byte to the currently built/parsed command. | |
102 | self.cmd[rxtx] += chr(pdata) | |
103 | ||
104 | # Get packets/bytes until an \r\n sequence is found (end of command). | |
105 | if self.cmd[rxtx][-1:] != '\n': | |
106 | return | |
107 | ||
108 | # Handle host commands and device replies. | |
109 | if rxtx == RX: | |
110 | self.handle_device_reply(ss, es, rxtx, self.cmd[rxtx]) | |
111 | elif rxtx == TX: | |
112 | self.handle_host_command(ss, es, rxtx, self.cmd[rxtx]) | |
113 | else: | |
114 | pass # TODO: Error. | |
115 |