Merge pull request #3 from frawau/master

RCA-38 protocol

README.rst

@@ -43,6 +43,13 @@ Philips RC-6 Protocol
 
     irgen -i rc6 -d 16 -1 0 -o raw
 
+RCA RCA-38 Protocol
+---------------------
+
+.. code-block:: bash
+
+     irgen -i rca38 -d 15 -1 0 -o raw
+
 
 Raw
 ---

src/irgen/__init__.py

@@ -23,7 +23,9 @@
 
 gen_raw_rc6_protocols = ['rc6']
 
-gen_raw_protocols = [*gen_raw_nec_protocols, *gen_raw_rc5_protocols, *gen_raw_rc6_protocols]
+gen_raw_rca38_protocols = ['rca38']
+
+gen_raw_protocols = [*gen_raw_nec_protocols, *gen_raw_rc5_protocols, *gen_raw_rc6_protocols, *gen_raw_rca38_protocols]
 
 def uX_to_bin(v, x):
     if(v < 0):
@@ -148,6 +150,40 @@ def encode(value):
     yield logical_bit * -3  # Trailing zero to separate
 
 
+def gen_raw_rca38(protocol, device, subdevice, function, **kwargs):
+    logical_bit = 460
+    def encode_bit(s):
+        if s == '1':
+            yield logical_bit * 1
+            yield logical_bit * -4
+        else:
+            yield logical_bit * 1
+            yield logical_bit * -2
+
+    def rev_encode_bit(s):
+        if s == '1':
+            yield from encode_bit('0')
+        else:
+            yield from encode_bit('1')
+
+    def encode_uX(x, l, f):
+        for s in uX_to_bin(x, l):
+            yield from f(s)
+
+
+    #Starting burst
+    yield logical_bit *  8
+    yield logical_bit * -8
+    # Device and function
+    yield from encode_uX(device, 4, encode_bit)
+    yield from encode_uX(function, 8, encode_bit)
+    #Reversed device and function
+    yield from encode_uX(device, 4, rev_encode_bit)
+    yield from encode_uX(function, 8, rev_encode_bit)
+    #Ending burst
+    yield logical_bit * 1
+    yield logical_bit * -16
+
 def gen_raw_general(protocol, device, subdevice, function, **kwargs):
     if protocol.lower() in gen_raw_nec_protocols:
         yield from gen_raw_nec(protocol.lower(),
@@ -167,6 +203,12 @@ def gen_raw_general(protocol, device, subdevice, function, **kwargs):
                                int(subdevice),
                                int(function))
 
+    if protocol.lower() in gen_raw_rca38_protocols:
+        yield from gen_raw_rca38(protocol.lower(),
+                               int(device),
+                               int(subdevice),
+                               int(function))
+
 
 def gen_simplified_from_raw(x):
     """
@@ -336,4 +378,4 @@ def fixup(x):
 def gen_pronto_from_raw(seq1, seq2, base=None, freq=None):
     data = gen_pronto_from_raw_int(seq1, seq2, base, freq)
     for value in data:
-        yield "{0:0{1}x}".format(value,4)
+        yield "{0:0{1}x}".format(value,4)

tests/test_library.py

@@ -15,3 +15,10 @@ def test_broadlink_decode_encode():
     raw  = list(irgen.gen_raw_from_broadlink_base64(data))
     data2 = bytes(irgen.gen_broadlink_base64_from_raw(raw))
     assert data == data2
+
+def test_rca38_decode_encode():
+    """
+    data was generated with IrScrutinizer-2.2.6 device 12, OBC 123
+    """
+    data = [+3680,-3680,+460,-1840,+460,-1840,+460,-920,+460,-920,+460,-920,+460,-1840,+460,-1840,+460,-1840,+460,-1840,+460,-920,+460,-1840,+460,-1840,+460,-920,+460,-920,+460,-1840,+460,-1840,+460,-1840,+460,-920,+460,-920,+460,-920,+460,-920,+460,-1840,+460,-920,+460,-920,+460,-7360]
+    assert data == list(irgen.gen_raw_general('rca38', 12, -1, 123))