pass
class Decoder(srd.Decoder):
- api_version = 2
+ api_version = 3
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']
+ outputs = []
+ tags = ['IR']
channels = (
{'id': 'ir', 'name': 'IR', 'desc': 'IR data line'},
)
)
def __init__(self):
+ self.reset()
+
+ def reset(self):
self.samplerate = None
- self.samplenum = None
self.edges, self.bits, self.ss_es_bits = [], [], []
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
+ self.next_edge = 'l' if self.options['polarity'] == 'active-low' else 'h'
def metadata(self, key, value):
if key == srd.SRD_CONF_SAMPLERATE:
self.edges, self.bits, self.ss_es_bits = [], [], []
self.state = 'IDLE'
- def decode(self, ss, es, data):
+ def decode(self):
if not self.samplerate:
raise SamplerateError('Cannot decode without samplerate.')
- for (self.samplenum, pins) in data:
-
- self.ir = pins[0]
+ while True:
- # Wait for any edge (rising or falling).
- if self.old_ir == self.ir:
- continue
+ (self.ir,) = self.wait({0: self.next_edge})
# State machine.
if self.state == 'IDLE':
+ bit = 1
self.edges.append(self.samplenum)
- self.bits.append([self.samplenum, 1])
+ self.bits.append([self.samplenum, bit])
self.state = 'MID1'
- self.old_ir = self.ir
+ self.next_edge = 'l' if self.ir else 'h'
continue
edge = self.edge_type()
if edge == 'e':
self.handle_bits()
self.reset_decoder_state()
- self.old_ir = self.ir
+ self.next_edge = 'l' if self.ir else 'h'