]>
Commit | Line | Data |
---|---|---|
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 | # Panasonic PAN1321 Bluetooth module protocol decoder | |
22 | ||
23 | import sigrokdecode as srd | |
24 | ||
25 | # ... | |
26 | RX = 0 | |
27 | TX = 1 | |
28 | ||
29 | class Decoder(srd.Decoder): | |
30 | api_version = 1 | |
31 | id = 'pan1321' | |
32 | name = 'PAN1321' | |
33 | longname = 'Panasonic PAN1321' | |
34 | desc = 'TODO.' | |
35 | license = 'gplv2+' | |
36 | inputs = ['uart'] | |
37 | outputs = ['pan1321'] | |
38 | probes = [] | |
39 | optional_probes = [] | |
40 | options = {} | |
41 | annotations = [ | |
42 | ['Text', 'Human-readable text'], | |
43 | ] | |
44 | ||
45 | def __init__(self, **kwargs): | |
46 | self.cmd = ['', ''] | |
47 | ||
48 | def start(self, metadata): | |
49 | # self.out_proto = self.add(srd.OUTPUT_PROTO, 'pan1321') | |
50 | self.out_ann = self.add(srd.OUTPUT_ANN, 'pan1321') | |
51 | ||
52 | def report(self): | |
53 | pass | |
54 | ||
55 | def handle_host_command(self, ss, es, rxtx, s): | |
56 | if s.startswith('AT+JSEC'): | |
57 | pin = s[-4:] | |
58 | self.put(ss, es, self.out_ann, | |
59 | [ANN_ASCII, ['Host set the Bluetooth PIN to ' + pin]]) | |
60 | elif s.startswith('AT+JSLN'): | |
61 | name = s[s.find(',') + 1:] | |
62 | self.put(ss, es, self.out_ann, | |
63 | [ANN_ASCII, ['Host set the Bluetooth name to ' + name]]) | |
64 | else: | |
65 | self.put(ss, es, self.out_ann, | |
66 | [ANN_ASCII, ['Host sent unsupported command: %s' % s]]) | |
67 | self.cmd[rxtx] = '' | |
68 | ||
69 | def handle_device_reply(self, ss, es, rxtx, s): | |
70 | if s == 'ROK': | |
71 | self.put(ss, es, self.out_ann, | |
72 | [ANN_ASCII, ['Device initialized correctly']]) | |
73 | elif s == 'OK': | |
74 | self.put(ss, es, self.out_ann, | |
75 | [ANN_ASCII, ['Device acknowledged last command']]) | |
76 | elif s.startswith('ERR'): | |
77 | error = s[s.find('=') + 1:] | |
78 | self.put(ss, es, self.out_ann, | |
79 | [ANN_ASCII, ['Device sent error code ' + error]]) | |
80 | else: | |
81 | self.put(ss, es, self.out_ann, | |
82 | [ANN_ASCII, ['Device sent an unknown reply: %s' % s]]) | |
83 | self.cmd[rxtx] = '' | |
84 | ||
85 | def decode(self, ss, es, data): | |
86 | ptype, rxtx, pdata = data | |
87 | ||
88 | # For now, ignore all UART packets except the actual data packets. | |
89 | if ptype != 'DATA': | |
90 | return | |
91 | ||
92 | # Append a new (ASCII) byte to the currently built/parsed command. | |
93 | self.cmd[rxtx] += chr(pdata) | |
94 | ||
95 | # Get packets/bytes until an \r\n sequence is found (end of command). | |
96 | if self.cmd[rxtx][-1:] != '\n': | |
97 | return | |
98 | ||
99 | # Handle host commands and device replies. | |
100 | # We remove trailing \r\n from the strings before handling them. | |
101 | if rxtx == RX: | |
102 | self.handle_device_reply(ss, es, rxtx, self.cmd[rxtx][:-2]) | |
103 | elif rxtx == TX: | |
104 | self.handle_host_command(ss, es, rxtx, self.cmd[rxtx][:-2]) | |
105 | else: | |
106 | raise Exception('Invalid rxtx value: %d' % rxtx) | |
107 |