diff options
Diffstat (limited to 'decoders/ir_nec')
| -rw-r--r-- | decoders/ir_nec/pd.py | 101 |
1 files changed, 76 insertions, 25 deletions
diff --git a/decoders/ir_nec/pd.py b/decoders/ir_nec/pd.py index faeeb09..8a41a87 100644 --- a/decoders/ir_nec/pd.py +++ b/decoders/ir_nec/pd.py @@ -38,13 +38,22 @@ class Decoder(srd.Decoder): } annotations = [ ['bit', 'Bit'], - ['lc', 'Leader code'], - ['info', 'Info'], - ['error', 'Error'], + ['agc-pulse', 'AGC pulse'], + ['longpause', 'Long pause'], + ['shortpause', 'Short pause'], + ['stop-bit', 'Stop bit'], + ['leader-code', 'Leader code'], + ['addr', 'Address'], + ['addr-inv', 'Address#'], + ['cmd', 'Command'], + ['cmd-inv', 'Command#'], + ['repeat-code', 'Repeat code'], + ['warnings', 'Warnings'], ] annotation_rows = ( - ('bits', 'Bits', (0,)), - ('fields', 'Fields', (1, 2, 3)), + ('bits', 'Bits', (0, 1, 2, 3, 4)), + ('fields', 'Fields', (5, 6, 7, 8, 9, 10)), + ('warnings', 'Warnings', (11,)), ) def putx(self, data): @@ -53,9 +62,29 @@ class Decoder(srd.Decoder): def putb(self, data): self.put(self.ss_bit, self.samplenum, self.out_ann, data) + def putd(self, data): + name = self.state.title() + d = {'ADDRESS': 6, 'ADDRESS#': 7, 'COMMAND': 8, 'COMMAND#': 9} + s = {'ADDRESS': ['ADDR', 'A'], 'ADDRESS#': ['ADDR#', 'A#'], + 'COMMAND': ['CMD', 'C'], 'COMMAND#': ['CMD#', 'C#']} + self.putx([d[self.state], ['%s: 0x%02X' % (name, data), + '%s: 0x%02X' % (s[self.state][0], data), + '%s: 0x%02X' % (s[self.state][1], data), s[self.state][1]]]) + + def putstop(self, ss): + self.put(ss, ss + self.stop, self.out_ann, + [4, ['Stop bit', 'Stop', 'St', 'S']]) + + def putpause(self, p): + self.put(self.ss_start, self.ss_other_edge, self.out_ann, + [1, ['AGC pulse', 'AGC', 'A']]) + idx = 2 if p == 'Long' else 3 + self.put(self.ss_other_edge, self.samplenum, self.out_ann, + [idx, [p + ' pause', '%s-pause' % p[0], '%sP' % p[0], 'P']]) + def __init__(self, **kwargs): self.state = 'IDLE' - self.ss_bit = self.ss_start = 0 + self.ss_bit = self.ss_start = self.ss_other_edge = 0 self.data = self.count = self.active = self.old_ir = None def start(self): @@ -72,31 +101,33 @@ class Decoder(srd.Decoder): self.rc = int(self.samplerate * 0.01125) - 1 # 11.25ms self.dazero = int(self.samplerate * 0.001125) - 1 # 1.125ms self.daone = int(self.samplerate * 0.00225) - 1 # 2.25ms + self.stop = int(self.samplerate * 0.000652) - 1 # 0.652ms - def handle_bits(self, tick): + def handle_bit(self, tick): ret = 0xff if tick in range(self.dazero - self.margin, self.dazero + self.margin): ret = 0 elif tick in range(self.daone - self.margin, self.daone + self.margin): ret = 1 - if ret < 2: self.putb([0, ['%d' % ret]]) self.data = self.data * 2 + ret self.count = self.count + 1 - self.ss_bit = self.samplenum - return ret - def data_judge(self): + def data_ok(self): ret, name = (self.data >> 8) & (self.data & 0xff), self.state.title() + if self.count == 8: + self.putd(self.data) + self.ss_start = self.samplenum + return True if ret == 0: - self.putx([2, ['%s: 0x%02x' % (name, self.data >> 8)]]) + self.putd(self.data & 0xff) else: - self.putx([3, ['%s error: 0x%04x' % (name, self.data)]]) + self.putx([11, ['%s error: 0x%04X' % (name, self.data)]]) self.data = self.count = 0 self.ss_bit = self.ss_start = self.samplenum - return ret + return ret == 0 def decode(self, ss, es, data): if self.samplerate is None: @@ -104,8 +135,11 @@ class Decoder(srd.Decoder): for (self.samplenum, pins) in data: self.ir = pins[0] - # Wait for an "active" edge (default: falling edge). - if self.old_ir == self.ir or self.ir != self.active: + # Wait for an "interesting" edge, but also record the other ones. + if self.old_ir == self.ir: + continue + if self.ir != self.active: + self.ss_other_edge = self.samplenum self.old_ir = self.ir continue @@ -114,22 +148,39 @@ class Decoder(srd.Decoder): # State machine. if self.state == 'IDLE': if b in range(self.lc - self.margin, self.lc + self.margin): - self.putx([1, ['Leader code', 'Leader', 'LC', 'L']]) + self.putpause('Long') + self.putx([5, ['Leader code', 'Leader', 'LC', 'L']]) self.data = self.count = 0 self.state = 'ADDRESS' elif b in range(self.rc - self.margin, self.rc + self.margin): - self.putx([1, ['Repeat code', 'Repeat', 'RC', 'R']]) + self.putpause('Short') + self.putstop(self.samplenum) + self.samplenum += self.stop + self.putx([10, ['Repeat code', 'Repeat', 'RC', 'R']]) self.data = self.count = 0 self.ss_bit = self.ss_start = self.samplenum elif self.state == 'ADDRESS': - self.handle_bits(b) - if self.count > 15: - self.state = 'COMMAND' if self.data_judge() == 0 else 'IDLE' + self.handle_bit(b) + if self.count == 8: + self.state = 'ADDRESS#' if self.data_ok() else 'IDLE' + elif self.state == 'ADDRESS#': + self.handle_bit(b) + if self.count == 16: + self.state = 'COMMAND' if self.data_ok() else 'IDLE' elif self.state == 'COMMAND': - self.handle_bits(b) - if self.count > 15: - self.data_judge() - self.state = 'IDLE' + self.handle_bit(b) + if self.count == 8: + self.state = 'COMMAND#' if self.data_ok() else 'IDLE' + elif self.state == 'COMMAND#': + self.handle_bit(b) + if self.count == 16: + self.state = 'STOP' if self.data_ok() else 'IDLE' + elif self.state == 'STOP': + self.putstop(self.ss_bit) + self.ss_bit = self.ss_start = self.samplenum + self.state = 'IDLE' + else: + raise Exception('Invalid state: %s' % self.state) self.old_ir = self.ir |