X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fam230x%2Fpd.py;h=a92dc299d22cca565ea2c41625f0c3c207ed02d4;hb=6a239714f9432e290ec7e26f239c6f9d1827233e;hp=fd1e825e19f7ff4bd489b638eaa85757391ef7e1;hpb=0b6bc7f9554c0980153563b6a3d16c3642fc4651;p=libsigrokdecode.git

diff --git a/decoders/am230x/pd.py b/decoders/am230x/pd.py
index fd1e825..a92dc29 100644
--- a/decoders/am230x/pd.py
+++ b/decoders/am230x/pd.py
@@ -35,11 +35,11 @@ class SamplerateError(Exception):
     pass
 
 class Decoder(srd.Decoder):
-    api_version = 2
+    api_version = 3
     id = 'am230x'
-    name = 'AM230x/DHTxx'
-    longname = 'Aosong AM230x/DHTxx'
-    desc = 'Aosong AM230x/DHTxx humidity/temperature sensor protocol.'
+    name = 'AM230x/DHTxx/RHTxx'
+    longname = 'Aosong AM230x/DHTxx/RHTxx'
+    desc = 'Aosong AM230x/DHTxx/RHTxx humidity/temperature sensor protocol.'
     license = 'gplv2+'
     inputs = ['logic']
     outputs = ['am230x']
@@ -48,7 +48,7 @@ class Decoder(srd.Decoder):
     )
     options = (
         {'id': 'device', 'desc': 'Device type',
-            'default': 'am230x', 'values': ('am230x', 'dht11')},
+            'default': 'am230x', 'values': ('am230x/rht', 'dht11')},
     )
     annotations = (
         ('start', 'Start'),
@@ -77,7 +77,6 @@ class Decoder(srd.Decoder):
 
     def reset(self):
         self.state = 'WAIT FOR START LOW'
-        self.samplenum = 0
         self.fall = 0
         self.rise = 0
         self.bits = []
@@ -123,13 +122,16 @@ class Decoder(srd.Decoder):
             checksum += self.bits2num(bitlist[i-8:i])
         return checksum % 256
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.reset()
 
     def start(self):
         self.out_ann = self.register(srd.OUTPUT_ANN)
 
+        # Assume that the initial pin state is high (logic 1).
+        self.initial_pins = [1]
+
     def metadata(self, key, value):
         if key != srd.SRD_CONF_SAMPLERATE:
             return
@@ -164,27 +166,24 @@ class Decoder(srd.Decoder):
                 self.state = 'WAIT FOR END'
             self.bytepos.append(self.samplenum)
 
-    def decode(self, ss, es, data):
+    def decode(self):
         if not self.samplerate:
             raise SamplerateError('Cannot decode without samplerate.')
-        for (self.samplenum, (sda,)) in data:
+        while True:
             # State machine.
             if self.state == 'WAIT FOR START LOW':
-                if sda != 0:
-                    continue
+                self.wait({0: 'f'})
                 self.fall = self.samplenum
                 self.state = 'WAIT FOR START HIGH'
             elif self.state == 'WAIT FOR START HIGH':
-                if sda != 1:
-                    continue
+                self.wait({0: 'r'})
                 if self.is_valid('START LOW'):
                     self.rise = self.samplenum
                     self.state = 'WAIT FOR RESPONSE LOW'
                 else:
                     self.reset()
             elif self.state == 'WAIT FOR RESPONSE LOW':
-                if sda != 0:
-                    continue
+                self.wait({0: 'f'})
                 if self.is_valid('START HIGH'):
                     self.putfs([0, ['Start', 'S']])
                     self.fall = self.samplenum
@@ -192,16 +191,14 @@ class Decoder(srd.Decoder):
                 else:
                     self.reset()
             elif self.state == 'WAIT FOR RESPONSE HIGH':
-                if sda != 1:
-                    continue
+                self.wait({0: 'r'})
                 if self.is_valid('RESPONSE LOW'):
                     self.rise = self.samplenum
                     self.state = 'WAIT FOR FIRST BIT'
                 else:
                     self.reset()
             elif self.state == 'WAIT FOR FIRST BIT':
-                if sda != 0:
-                    continue
+                self.wait({0: 'f'})
                 if self.is_valid('RESPONSE HIGH'):
                     self.putfs([1, ['Response', 'R']])
                     self.fall = self.samplenum
@@ -210,16 +207,14 @@ class Decoder(srd.Decoder):
                 else:
                     self.reset()
             elif self.state == 'WAIT FOR BIT HIGH':
-                if sda != 1:
-                    continue
+                self.wait({0: 'r'})
                 if self.is_valid('BIT LOW'):
                     self.rise = self.samplenum
                     self.state = 'WAIT FOR BIT LOW'
                 else:
                     self.reset()
             elif self.state == 'WAIT FOR BIT LOW':
-                if sda != 0:
-                    continue
+                self.wait({0: 'f'})
                 if self.is_valid('BIT 0 HIGH'):
                     bit = 0
                 elif self.is_valid('BIT 1 HIGH'):
@@ -229,7 +224,6 @@ class Decoder(srd.Decoder):
                     continue
                 self.handle_byte(bit)
             elif self.state == 'WAIT FOR END':
-                if sda != 1:
-                    continue
+                self.wait({0: 'r'})
                 self.putfs([3, ['End', 'E']])
                 self.reset()