All PDs: Name the files pd.py consistently.

[libsigrokdecode.git] / decoders / i2s / i2s.py

diff --git a/decoders/i2s/i2s.py b/decoders/i2s/i2s.py
deleted file mode 100644 (file)
index b921011..0000000
--- a/decoders/i2s/i2s.py
+++ /dev/null
@@ -1,124 +0,0 @@
-##
-## This file is part of the sigrok project.
-##
-## Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## 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
-##
-
-# I2S protocol decoder
-
-import sigrokdecode as srd
-
-# Annotation formats
-ANN_HEX = 0
-
-class Decoder(srd.Decoder):
-    api_version = 1
-    id = 'i2s'
-    name = 'I2S'
-    longname = 'Integrated Interchip Sound'
-    desc = 'Serial bus for connecting digital audio devices.'
-    license = 'gplv2+'
-    inputs = ['logic']
-    outputs = ['i2s']
-    probes = [
-        {'id': 'sck', 'name': 'SCK', 'desc': 'Bit clock line'},
-        {'id': 'ws', 'name': 'WS', 'desc': 'Word select line'},
-        {'id': 'sd', 'name': 'SD', 'desc': 'Serial data line'},
-    ]
-    optional_probes = []
-    options = {}
-    annotations = [
-        ['Hex', 'Annotations in hex format'],
-    ]
-
-    def __init__(self, **kwargs):
-        self.oldsck = 1
-        self.oldws = 1
-        self.bitcount = 0
-        self.data = 0
-        self.samplesreceived = 0
-        self.first_sample = None
-        self.start_sample = None
-        self.samplenum = -1
-        self.wordlength = -1
-
-    def start(self, metadata):
-        self.samplerate = metadata['samplerate']
-        self.out_proto = self.add(srd.OUTPUT_PROTO, 'i2s')
-        self.out_ann = self.add(srd.OUTPUT_ANN, 'i2s')
-
-    def report(self):
-
-        # Calculate the sample rate.
-        samplerate = '?'
-        if self.start_sample != None and \
-            self.first_sample != None and \
-            self.start_sample > self.first_sample:
-            samplerate = '%d' % (self.samplesreceived *
-                self.samplerate / (self.start_sample -
-                self.first_sample))
-
-        return 'I2S: %d %d-bit samples received at %sHz' % \
-            (self.samplesreceived, self.wordlength, samplerate)
-
-    def decode(self, ss, es, data):
-        for samplenum, (sck, ws, sd) in data:
-
-            # Ignore sample if the bit clock hasn't changed.
-            if sck == self.oldsck:
-                continue
-
-            self.oldsck = sck
-            if sck == 0:   # Ignore the falling clock edge.
-                continue
-
-            self.data = (self.data << 1) | sd
-            self.bitcount += 1
-
-            # This was not the LSB unless WS has flipped.
-            if ws == self.oldws:
-                continue
-
-            # Only submit the sample, if we received the beginning of it.
-            if self.start_sample != None:
-                self.samplesreceived += 1
-                self.put(self.start_sample, self.samplenum, self.out_proto,
-                         ['data', self.data])
-                self.put(self.start_sample, self.samplenum, self.out_ann,
-                         [ANN_HEX, ['%s: 0x%08x' % ('L' if self.oldws else 'R',
-                         self.data)]])
-
-                # Check that the data word was the correct length.
-                if self.wordlength != -1 and self.wordlength != self.bitcount:
-                    self.put(self.start_sample, self.samplenum, self.out_ann,
-                        [ANN_HEX, ['WARNING: Received a %d-bit word, when a '
-                        '%d-bit word was expected' % (self.bitcount,
-                        self.wordlength)]])
-
-                self.wordlength = self.bitcount
-
-            # Reset decoder state.
-            self.data = 0
-            self.bitcount = 0
-            self.start_sample = self.samplenum
-
-            # Save the first sample position.
-            if self.first_sample == None:
-                self.first_sample = self.samplenum
-
-            self.oldws = ws
-