summaryrefslogtreecommitdiff
path: root/decoders
diff options
context:
space:
mode:
Diffstat (limited to 'decoders')
-rw-r--r--decoders/ir_rc5/__init__.py26
-rw-r--r--decoders/ir_rc5/lists.py95
-rw-r--r--decoders/ir_rc5/pd.py175
3 files changed, 296 insertions, 0 deletions
diff --git a/decoders/ir_rc5/__init__.py b/decoders/ir_rc5/__init__.py
new file mode 100644
index 0000000..085082f
--- /dev/null
+++ b/decoders/ir_rc5/__init__.py
@@ -0,0 +1,26 @@
+##
+## This file is part of the libsigrokdecode project.
+##
+## Copyright (C) 2014 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## 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, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+'''
+RC-5 is a biphase/manchester based infrared remote control protocol.
+'''
+
+from .pd import *
+
diff --git a/decoders/ir_rc5/lists.py b/decoders/ir_rc5/lists.py
new file mode 100644
index 0000000..8a81ef7
--- /dev/null
+++ b/decoders/ir_rc5/lists.py
@@ -0,0 +1,95 @@
+##
+## This file is part of the libsigrokdecode project.
+##
+## Copyright (C) 2014 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## 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, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+# Systems/addresses (0..31). Items that are not listed are reserved/unknown.
+system = {
+ 0: ['TV receiver 1', 'TV1'],
+ 1: ['TV receiver 2', 'TV2'],
+ 2: ['Teletext', 'Txt'],
+ 3: ['Extension to TV1 and TV2', 'Ext TV1/TV2'],
+ 4: ['LaserVision player', 'LV'],
+ 5: ['Video cassette recorder 1', 'VCR1'],
+ 6: ['Video cassette recorder 2', 'VCR2'],
+ 7: ['Experimental', 'Exp'],
+ 8: ['Satellite TV receiver 1', 'Sat1'],
+ 9: ['Extension to VCR1 and VCR2', 'Ext VCR1/VCR2'],
+ 10: ['Satellite TV receiver 2', 'Sat2'],
+ 12: ['Compact disc video player', 'CD-Video'],
+ 13: ['Camcorder', 'Cam'],
+ 14: ['Photo on compact disc player', 'CD-Photo'],
+ 16: ['Audio preamplifier 1', 'Preamp1'],
+ 17: ['Radio tuner', 'Tuner'],
+ 18: ['Analog cassette recoder 1', 'Rec1'],
+ 19: ['Audio preamplifier 2', 'Preamp2'],
+ 20: ['Compact disc player', 'CD'],
+ 21: ['Audio stack or record player', 'Combi'],
+ 22: ['Audio satellite', 'Sat'],
+ 23: ['Analog cassette recoder 2', 'Rec2'],
+ 26: ['Compact disc recorder', 'CD-R'],
+ 29: ['Lighting 1', 'Light1'],
+ 30: ['Lighting 2', 'Light2'],
+ 31: ['Telephone', 'Phone'],
+}
+
+digits = {
+ 0: ['0', '0'],
+ 1: ['1', '1'],
+ 2: ['2', '2'],
+ 3: ['3', '3'],
+ 4: ['4', '4'],
+ 5: ['5', '5'],
+ 6: ['6', '6'],
+ 7: ['7', '7'],
+ 8: ['8', '8'],
+ 9: ['9', '9'],
+}
+
+# Commands (0..63 for RC-5, and 0..127 for Extended RC-5).
+# Items that are not listed are reserved/unknown.
+command = {
+ 'TV': dict(list(digits.items()) + list({
+ 10: ['-/--', '-/--'],
+ 11: ['Channel/program', 'Ch/P'],
+ 12: ['Standby', 'StBy'],
+ 13: ['Mute', 'M'],
+ 14: ['Personal preferences', 'PP'],
+ 14: ['Display', 'Disp'],
+ 16: ['Volume up', 'Vol+'],
+ 17: ['Volume down', 'Vol-'],
+ 18: ['Brightness up', 'Br+'],
+ 19: ['Brightness down', 'Br-'],
+ 20: ['Saturation up', 'S+'],
+ 21: ['Saturation down', 'S-'],
+ 32: ['Program up', 'P+'],
+ 33: ['Program down', 'P-'],
+ }.items())),
+ 'VCR': dict(list(digits.items()) + list({
+ 10: ['-/--', '-/--'],
+ 12: ['Standby', 'StBy'],
+ 32: ['Program up', 'P+'],
+ 33: ['Program down', 'P-'],
+ 50: ['Fast rewind', 'FRW'],
+ 52: ['Fast forward', 'FFW'],
+ 53: ['Play', 'Pl'],
+ 54: ['Stop', 'St'],
+ 55: ['Recording', 'Rec'],
+ }.items())),
+}
+
diff --git a/decoders/ir_rc5/pd.py b/decoders/ir_rc5/pd.py
new file mode 100644
index 0000000..1abba82
--- /dev/null
+++ b/decoders/ir_rc5/pd.py
@@ -0,0 +1,175 @@
+##
+## This file is part of the libsigrokdecode project.
+##
+## Copyright (C) 2014 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## 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, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+import sigrokdecode as srd
+from .lists import *
+
+class Decoder(srd.Decoder):
+ api_version = 1
+ id = 'ir_rc5'
+ name = 'IR RC-5'
+ longname = 'IR RC-5'
+ desc = 'RC-5 infrared remote control protocol.'
+ license = 'gplv2+'
+ inputs = ['logic']
+ outputs = ['ir_rc5']
+ probes = [
+ {'id': 'ir', 'name': 'IR', 'desc': 'IR data line'},
+ ]
+ optional_probes = []
+ options = {
+ 'polarity': ['Polarity', 'active-low'],
+ 'protocol': ['Protocol type', 'standard'],
+ }
+ annotations = [
+ ['bit', 'Bit'],
+ ['startbit1', 'Startbit 1'],
+ ['startbit2', 'Startbit 2'],
+ ['togglebit-0', 'Toggle bit 0'],
+ ['togglebit-1', 'Toggle bit 1'],
+ ['address', 'Address'],
+ ['command', 'Command'],
+ ]
+ annotation_rows = (
+ ('bits', 'Bits', (0,)),
+ ('fields', 'Fields', (1, 2, 3, 4, 5, 6)),
+ )
+
+ def __init__(self, **kwargs):
+ self.samplerate = None
+ self.samplenum = None
+ self.edges, self.bits, self.bits_ss_es = [], [], []
+ self.state = 'IDLE'
+
+ def start(self):
+ self.out_ann = self.register(srd.OUTPUT_ANN)
+ self.old_ir = 1 if self.options['polarity'] == 'active-low' else 0
+
+ def metadata(self, key, value):
+ if key == srd.SRD_CONF_SAMPLERATE:
+ self.samplerate = value
+ # One bit: 1.78ms (one half low, one half high).
+ self.halfbit = int((self.samplerate * 0.00178) / 2.0)
+
+ def putb(self, bit1, bit2, data):
+ ss, es = self.bits_ss_es[bit1][0], self.bits_ss_es[bit2][1]
+ self.put(ss, es, self.out_ann, data)
+
+ def handle_bits(self):
+ a, c, b = 0, 0, self.bits
+ # Individual raw bits.
+ for i in range(14):
+ if i == 0:
+ ss = max(0, self.bits[0][0] - self.halfbit)
+ else:
+ ss = self.bits_ss_es[i - 1][1]
+ es = self.bits[i][0] + self.halfbit
+ self.bits_ss_es.append([ss, es])
+ self.putb(i, i, [0, ['%d' % self.bits[i][1]]])
+ # Bits[0:0]: Startbit 1
+ s = ['Startbit1: %d' % b[0][1], 'SB1: %d' % b[0][1], 'SB1', 'S1', 'S']
+ self.putb(0, 0, [1, s])
+ # Bits[1:1]: Startbit 2
+ ann_idx = 2
+ s = ['Startbit2: %d' % b[1][1], 'SB2: %d' % b[1][1], 'SB2', 'S2', 'S']
+ if self.options['protocol'] == 'extended':
+ s = ['CMD[6]#: %d' % b[1][1], 'C6#: %d' % b[1][1], 'C6#', 'C#', 'C']
+ ann_idx = 6
+ self.putb(1, 1, [ann_idx, s])
+ # Bits[2:2]: Toggle bit
+ s = ['Togglebit: %d' % b[2][1], 'Toggle: %d' % b[2][1],
+ 'TB: %d' % b[2][1], 'TB', 'T']
+ self.putb(2, 2, [3 if b[2][1] == 0 else 4, s])
+ # Bits[3:7]: Address (MSB-first)
+ for i in range(5):
+ a |= (b[3 + i][1] << (4 - i))
+ x = system.get(a, ['Unknown', 'Unk'])
+ s = ['Address: %d (%s)' % (a, x[0]), 'Addr: %d (%s)' % (a, x[1]),
+ 'Addr: %d' % a, 'A: %d' % a, 'A']
+ self.putb(3, 7, [5, s])
+ # Bits[8:13]: Command (MSB-first)
+ for i in range(6):
+ c |= (b[8 + i][1] << (5 - i))
+ if self.options['protocol'] == 'extended':
+ inverted_bit6 = 1 if b[1][1] == 0 else 0
+ c |= (inverted_bit6 << 6)
+ cmd_type = 'VCR' if x[1] in ('VCR1', 'VCR2') else 'TV'
+ x = command[cmd_type].get(c, ['Unknown', 'Unk'])
+ s = ['Command: %d (%s)' % (c, x[0]), 'Cmd: %d (%s)' % (c, x[1]),
+ 'Cmd: %d' % c, 'C: %d' % c, 'C']
+ self.putb(8, 13, [6, s])
+
+ def edge_type(self):
+ # Categorize according to distance from last edge (short/long).
+ distance = self.samplenum - self.edges[-1]
+ s, l, margin = self.halfbit, self.halfbit * 2, int(self.halfbit / 2)
+ if distance in range(l - margin, l + margin + 1):
+ return 'l'
+ elif distance in range(s - margin, s + margin + 1):
+ return 's'
+ else:
+ raise Exception('Invalid edge distance: %d' % distance)
+
+ def decode(self, ss, es, data):
+ if self.samplerate is None:
+ raise Exception("Cannot decode without samplerate.")
+ for (self.samplenum, pins) in data:
+
+ self.ir = pins[0]
+
+ # Wait for any edge (rising or falling).
+ if self.old_ir == self.ir:
+ continue
+
+ # State machine.
+ if self.state == 'IDLE':
+ self.edges.append(self.samplenum)
+ self.bits.append([self.samplenum, 1])
+ self.state = 'MID1'
+ self.old_ir = self.ir
+ continue
+ if self.state == 'MID1':
+ self.state = 'START1' if self.edge_type() == 's' else 'MID0'
+ bit = None if self.edge_type() == 's' else 0
+ elif self.state == 'MID0':
+ self.state = 'START0' if self.edge_type() == 's' else 'MID1'
+ bit = None if self.edge_type() == 's' else 1
+ elif self.state == 'START1':
+ if self.edge_type() == 's':
+ self.state = 'MID1'
+ bit = 1 if self.edge_type() == 's' else None
+ elif self.state == 'START0':
+ if self.edge_type() == 's':
+ self.state = 'MID0'
+ bit = 0 if self.edge_type() == 's' else None
+ else:
+ raise Exception('Invalid state: %s' % self.state)
+
+ self.edges.append(self.samplenum)
+ if bit != None:
+ self.bits.append([self.samplenum, bit])
+
+ if len(self.bits) == 14 + 1:
+ self.handle_bits()
+ self.edges, self.bits, self.bits_ss_es = [], [], []
+ self.state = 'IDLE'
+
+ self.old_ir = self.ir
+
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-16 17:58:38 +0000