diff options
Diffstat (limited to 'decoders/ir_irmp')
| -rw-r--r-- | decoders/ir_irmp/__init__.py | 25 | ||||
| -rw-r--r-- | decoders/ir_irmp/pd.py | 149 |
2 files changed, 174 insertions, 0 deletions
diff --git a/decoders/ir_irmp/__init__.py b/decoders/ir_irmp/__init__.py new file mode 100644 index 0000000..5b0e813 --- /dev/null +++ b/decoders/ir_irmp/__init__.py @@ -0,0 +1,25 @@ +## +## 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/>. +## + +''' +IRMP is a multi protocol infrared remote protocol decoder +intiated and maintained by Frank M. (ukw) + +https://www.mikrocontroller.net/articles/IRMP + +irmp wrapper by René Staffen +''' + +from .pd import Decoder diff --git a/decoders/ir_irmp/pd.py b/decoders/ir_irmp/pd.py new file mode 100644 index 0000000..343c068 --- /dev/null +++ b/decoders/ir_irmp/pd.py @@ -0,0 +1,149 @@ +## +## 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 + +#from .lists import * + +from .IrmpPythonWrap import IrmpWrap + +class SamplerateError(Exception): + pass + +class Decoder(srd.Decoder): + api_version = 3 + id = 'ir_irmp' + name = 'IR IRMP' + longname = 'IR IRMP multi protocol decoder' + desc = 'IRMP - multi protocol infrared decoder with support for many IR protocols by Frank M. (ukw)' + license = 'gplv2+' + inputs = ['logic'] + outputs = [] + tags = ['IR'] + channels = ( + {'id': 'ir', 'name': 'IR', 'desc': 'Data line'}, + ) + options = ( + {'id': 'polarity', 'desc': 'Polarity', 'default': 'active-low', + 'values': ('active-low', 'active-high')}, +# +# {'id': 'cd_freq', 'desc': 'Carrier Frequency', 'default': 0}, + ) + annotations = ( + ('packet', 'Packet'), + ('debug', 'Debug'), + ) + annotation_rows = ( + ('packets', 'IR Packets', (0,)), + ('debug', 'Debug', (1,)), + ) + irmp = IrmpWrap() + + def putIr(self, data): + ss = data['start'] * self.subSample + es = data['end'] * self.subSample + ad = data['data']['address'] + pr = data['data']['protocol'] + pn = data['data']['protocolName'] + cm = data['data']['command'] + repeat = data['data']['repeat'] + + + # print(f" {self.samplenum} {ss} - {es} ({data['start']} - {data['end']})") + self.put(ss, es, self.out_ann, + [0, [ f"Protocol: {pn} ({pr}), Address 0x{ad:04x}, Command: 0x{cm:04x} {'repeated' if repeat else ''}", + f"P: {pn} ({pr}), Ad: 0x{ad:x}, Cmd: 0x{cm:x} {'rep' if repeat else ''}", + f"P: {pr} A: 0x{ad:x} C: 0x{cm:x} {'rep' if repeat else ''}", + f"C:{cm:x} A:{ad:x} {'r' if repeat else ''}", + f"C:{cm:x}", + ]]) + + def __init__(self): + self.irmp = Decoder.irmp + self.reset() + + def reset(self): + self.irmp.Reset() + + def start(self): + self.out_ann = self.register(srd.OUTPUT_ANN) + + def metadata(self, key, value): + if key == srd.SRD_CONF_SAMPLERATE: + self.samplerate = value + + + def decode(self): + if not self.samplerate: + raise SamplerateError('Cannot decode without samplerate.') + + + if (self.samplerate % self.irmp.GetSampleRate()) != 0: + raise SamplerateError(f'samplerate has to be multple of {self.irmp.GetSampleRate()}' ) + + self.subSample = int(self.samplerate / self.irmp.GetSampleRate()) + sampleSkip = self.subSample + #self.reset() + #print (f" startdecode: samplenum {self.samplenum} rate: {self.samplerate} subsample {self.subSample}") + # cd_count = None + # if self.options['cd_freq']: + # cd_count = int(self.samplerate / self.options['cd_freq']) + 1 + + self.active = 0 if self.options['polarity'] == 'active-low' else 1 + + (ir,) = self.wait([{'skip' : sampleSkip}]) + i = 0 + + while True: + ##### todo: check if ir carrier frequency detection can be used + # + # Detect changes in the presence of an active input signal. + # The decoder can either be fed an already filtered RX signal + # or optionally can detect the presence of a carrier. Periods + # of inactivity (signal changes slower than the carrier freq, + # if specified) pass on the most recently sampled level. This + # approach works for filtered and unfiltered input alike, and + # only slightly extends the active phase of input signals with + # carriers included by one period of the carrier frequency. + # IR based communication protocols can cope with this slight + # inaccuracy just fine by design. Enabling carrier detection + # on already filtered signals will keep the length of their + # active period, but will shift their signal changes by one + # carrier period before they get passed to decoding logic. + # if cd_count: + # (cur_ir,) = self.wait([{0: 'e'}, {'skip': cd_count}]) + # if self.matched[0]: + # cur_ir = self.active + # if cur_ir == prev_ir: + # continue + # prev_ir = cur_ir + # self.ir = cur_ir + # else: + # (self.ir,) = self.wait({0: 'e'}) + # + #print (f"samplenum {self.samplenum}") + #if i%100 == 0: + # self.put(self.samplenum, self.samplenum+10, self.out_ann, + # [1, [ f"{self.samplenum} - {i}",]]) + + if self.active == 1: + ir = 1 - ir + + if self.irmp.AddSample(ir): + data = self.irmp.GetData() + self.putIr(data) + i = i + 1 + (ir,) = self.wait([{'skip' : sampleSkip}]) + |