+ self.reset()
+
+ def reset(self):
+ self.samplerate = None
+ self.bitcount = 0
+ self.misodata = self.mosidata = 0
+ self.misobits = []
+ self.mosibits = []
+ self.misobytes = []
+ self.mosibytes = []
+ self.ss_block = -1
+ self.ss_transfer = -1
+ self.cs_was_deasserted = False
+ self.have_cs = self.have_miso = self.have_mosi = None
+
+ def start(self):
+ self.out_python = self.register(srd.OUTPUT_PYTHON)
+ self.out_ann = self.register(srd.OUTPUT_ANN)
+ self.out_binary = self.register(srd.OUTPUT_BINARY)
+ self.out_bitrate = self.register(srd.OUTPUT_META,
+ meta=(int, 'Bitrate', 'Bitrate during transfers'))
+ self.bw = (self.options['wordsize'] + 7) // 8
+
+ def metadata(self, key, value):
+ if key == srd.SRD_CONF_SAMPLERATE:
+ self.samplerate = value
+
+ def putw(self, data):
+ self.put(self.ss_block, self.samplenum, self.out_ann, data)
+
+ def putdata(self):
+ # Pass MISO and MOSI bits and then data to the next PD up the stack.
+ so = self.misodata if self.have_miso else None
+ si = self.mosidata if self.have_mosi else None
+ so_bits = self.misobits if self.have_miso else None
+ si_bits = self.mosibits if self.have_mosi else None
+
+ if self.have_miso:
+ ss, es = self.misobits[-1][1], self.misobits[0][2]
+ bdata = so.to_bytes(self.bw, byteorder='big')
+ self.put(ss, es, self.out_binary, [0, bdata])
+ if self.have_mosi:
+ ss, es = self.mosibits[-1][1], self.mosibits[0][2]
+ bdata = si.to_bytes(self.bw, byteorder='big')
+ self.put(ss, es, self.out_binary, [1, bdata])
+
+ self.put(ss, es, self.out_python, ['BITS', si_bits, so_bits])
+ self.put(ss, es, self.out_python, ['DATA', si, so])
+
+ if self.have_miso:
+ self.misobytes.append(Data(ss=ss, es=es, val=so))
+ if self.have_mosi:
+ self.mosibytes.append(Data(ss=ss, es=es, val=si))
+
+ # Bit annotations.
+ if self.have_miso:
+ for bit in self.misobits:
+ self.put(bit[1], bit[2], self.out_ann, [2, ['%d' % bit[0]]])
+ if self.have_mosi:
+ for bit in self.mosibits:
+ self.put(bit[1], bit[2], self.out_ann, [3, ['%d' % bit[0]]])
+
+ # Dataword annotations.
+ if self.have_miso:
+ self.put(ss, es, self.out_ann, [0, ['%02X' % self.misodata]])
+ if self.have_mosi:
+ self.put(ss, es, self.out_ann, [1, ['%02X' % self.mosidata]])
+
+ def reset_decoder_state(self):
+ self.misodata = 0 if self.have_miso else None
+ self.mosidata = 0 if self.have_mosi else None
+ self.misobits = [] if self.have_miso else None
+ self.mosibits = [] if self.have_mosi else None