litex/soc/misoc/cores/dvi_sampler/decoding.py

   1 from migen import *
   2 from migen.genlib.record import Record
   3
   4 from misoc.cores.dvi_sampler.common import control_tokens, channel_layout
   5
   6
   7 class Decoding(Module):
   8     def __init__(self):
   9         self.valid_i = Signal()
  10         self.input = Signal(10)
  11         self.valid_o = Signal()
  12         self.output = Record(channel_layout)
  13
  14         ###
  15
  16         self.sync.pix += self.output.de.eq(1)
  17         for i, t in enumerate(control_tokens):
  18             self.sync.pix += If(self.input == t,
  19                 self.output.de.eq(0),
  20                 self.output.c.eq(i)
  21             )
  22         self.sync.pix += self.output.d[0].eq(self.input[0] ^ self.input[9])
  23         for i in range(1, 8):
  24             self.sync.pix += self.output.d[i].eq(self.input[i] ^ self.input[i-1] ^ ~self.input[8])
  25         self.sync.pix += self.valid_o.eq(self.valid_i)