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4032dedd | 1 | ## |
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2 | ## This file is part of the libsigrokdecode project. |
3 | ## | |
4 | ## Copyright (C) 2014 Gump Yang <gump.yang@gmail.com> | |
5 | ## Copyright (C) 2019 Rene Staffen | |
6 | ## | |
4032dedd GS |
7 | ## This program is free software; you can redistribute it and/or modify |
8 | ## it under the terms of the GNU General Public License as published by | |
9 | ## the Free Software Foundation; either version 2 of the License, or | |
10 | ## (at your option) any later version. | |
11 | ## | |
12 | ## This program is distributed in the hope that it will be useful, | |
13 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | ## GNU General Public License for more details. | |
16 | ## | |
17 | ## You should have received a copy of the GNU General Public License | |
18 | ## along with this program; if not, see <http://www.gnu.org/licenses/>. | |
19 | ## | |
20 | ||
e8e8bec6 | 21 | from . import irmp_library |
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22 | import sigrokdecode as srd |
23 | ||
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24 | class SamplerateError(Exception): |
25 | pass | |
26 | ||
27 | class Decoder(srd.Decoder): | |
28 | api_version = 3 | |
29 | id = 'ir_irmp' | |
30 | name = 'IR IRMP' | |
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31 | longname = 'IR IRMP' |
32 | desc = 'IRMP infrared remote control multi protocol.' | |
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33 | license = 'gplv2+' |
34 | inputs = ['logic'] | |
35 | outputs = [] | |
36 | tags = ['IR'] | |
37 | channels = ( | |
38 | {'id': 'ir', 'name': 'IR', 'desc': 'Data line'}, | |
39 | ) | |
40 | options = ( | |
41 | {'id': 'polarity', 'desc': 'Polarity', 'default': 'active-low', | |
42 | 'values': ('active-low', 'active-high')}, | |
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43 | ) |
44 | annotations = ( | |
45 | ('packet', 'Packet'), | |
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46 | ) |
47 | annotation_rows = ( | |
48 | ('packets', 'IR Packets', (0,)), | |
4032dedd | 49 | ) |
4032dedd | 50 | |
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51 | def putframe(self, data): |
52 | nr = data['proto_nr'] | |
53 | name = data['proto_name'] | |
54 | addr = data['address'] | |
55 | cmd = data['command'] | |
56 | repeat = data['repeat'] | |
57 | rep = ['repeat', 'rep', 'r'] if repeat else ['', '', ''] | |
58 | ss = data['start'] * self.rate_factor | |
59 | es = data['end'] * self.rate_factor | |
60 | self.put(ss, es, self.out_ann, [0, [ | |
61 | 'Protocol: {nr} ({name}), Address 0x{addr:04x}, Command: 0x{cmd:04x} {rep[0]}'.format(**locals()), | |
62 | 'P: {name} ({nr}), Addr: 0x{addr:x}, Cmd: 0x{cmd:x} {rep[1]}'.format(**locals()), | |
63 | 'P: {nr} A: 0x{addr:x} C: 0x{cmd:x} {rep[1]}'.format(**locals()), | |
64 | 'C:{cmd:x} A:{addr:x} {rep[2]}'.format(**locals()), | |
65 | 'C:{cmd:x}'.format(**locals()), | |
66 | ]]) | |
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67 | |
68 | def __init__(self): | |
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69 | self.irmp = irmp_library.IrmpLibrary() |
70 | self.lib_rate = self.irmp.get_sample_rate() | |
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71 | self.reset() |
72 | ||
73 | def reset(self): | |
e8e8bec6 | 74 | self.irmp.reset_state() |
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75 | |
76 | def start(self): | |
77 | self.out_ann = self.register(srd.OUTPUT_ANN) | |
78 | ||
79 | def metadata(self, key, value): | |
80 | if key == srd.SRD_CONF_SAMPLERATE: | |
81 | self.samplerate = value | |
82 | ||
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83 | def decode(self): |
84 | if not self.samplerate: | |
85 | raise SamplerateError('Cannot decode without samplerate.') | |
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86 | if self.samplerate % self.lib_rate: |
87 | raise SamplerateError('capture samplerate must be multiple of library samplerate ({})'.format(self.lib_rate)) | |
88 | self.rate_factor = int(self.samplerate / self.lib_rate) | |
4032dedd | 89 | |
4032dedd | 90 | self.active = 0 if self.options['polarity'] == 'active-low' else 1 |
e8e8bec6 | 91 | ir, = self.wait() |
4032dedd | 92 | while True: |
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93 | if self.active == 1: |
94 | ir = 1 - ir | |
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95 | if self.irmp.add_one_sample(ir): |
96 | data = self.irmp.get_result_data() | |
97 | self.putframe(data) | |
98 | ir, = self.wait([{'skip': self.rate_factor}]) |