license: remove FSF postal address from boiler plate license text

[libsigrokdecode.git] / decoders / usb_power_delivery / pd.py

diff --git a/decoders/usb_power_delivery/pd.py b/decoders/usb_power_delivery/pd.py
index da73661e0f7be604125a14242877a85156ae1cf6..3258ac329674e3ac8f1f0751e34c8e051fd0b55d 100644 (file)
--- a/decoders/usb_power_delivery/pd.py
+++ b/decoders/usb_power_delivery/pd.py
@@ -14,8 +14,7 @@
 ## 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
+## along with this program; if not, see <http://www.gnu.org/licenses/>.
 ##
 
 import sigrokdecode as srd
@@ -178,8 +177,11 @@ VDM_CMDS = {
 }
 VDM_ACK = ['REQ', 'ACK', 'NAK', 'BSY']
 
+class SamplerateError(Exception):
+    pass
+
 class Decoder(srd.Decoder):
-    api_version = 2
+    api_version = 3
     id = 'usb_power_delivery'
     name = 'USB PD'
     longname = 'USB Power Delivery'
@@ -436,13 +438,11 @@ class Decoder(srd.Decoder):
         self.putwarn('No start of packet found', 'XXX')
         return -1   # No Start Of Packet
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.idx = 0
         self.packet_seq = 0
-        self.samplenum = 0
         self.previous = 0
-        self.oldpins = [0]
         self.startsample = None
         self.bits = []
         self.edges = []
@@ -468,8 +468,6 @@ class Decoder(srd.Decoder):
         )
 
     def us2samples(self, us):
-        if not self.samplerate:
-            raise Exception('Need the samplerate.')
         return int(us * self.samplerate / 1000000)
 
     def decode_packet(self):
@@ -526,15 +524,11 @@ class Decoder(srd.Decoder):
         # Raw binary data (BMC decoded)
         self.put(es, ss, self.out_binary, [0, bytes(self.bits)])
 
-    def decode(self, ss, es, data):
+    def decode(self):
         if not self.samplerate:
-            raise Exception('Cannot decode without samplerate.')
-        for (self.samplenum, pins) in data:
-            # find edges ...
-            if self.oldpins == pins:
-                continue
-
-            self.oldpins, (cc, ) = pins, pins
+            raise SamplerateError('Cannot decode without samplerate.')
+        while True:
+            self.wait({0: 'e'})
 
             # First sample of the packet, just record the start date
             if not self.startsample: