50 lines
1011 B
Python
50 lines
1011 B
Python
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from migen.fhdl.structure import *
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from migen.fhdl.module import Module
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from migen.genlib.record import Record
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from milkymist.dvisampler.common import channel_layout
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class SyncPolarity(Module):
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def __init__(self):
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self.valid_i = Signal()
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self.data_in0 = Record(channel_layout)
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self.data_in1 = Record(channel_layout)
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self.data_in2 = Record(channel_layout)
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self.valid_o = Signal()
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self.de = Signal()
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self.hsync = Signal()
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self.vsync = Signal()
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self.r = Signal(8)
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self.g = Signal(8)
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self.b = Signal(8)
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###
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de = self.data_in0.de
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de_r = Signal()
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c = self.data_in0.c
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c_polarity = Signal(2)
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c_out = Signal(2)
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self.comb += [
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self.de.eq(de_r),
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self.hsync.eq(c_out[0]),
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self.vsync.eq(c_out[1])
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]
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self.sync.pix += [
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self.valid_o.eq(self.valid_i),
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self.r.eq(self.data_in2.d),
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self.g.eq(self.data_in1.d),
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self.b.eq(self.data_in0.d),
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de_r.eq(de),
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If(de_r & ~de,
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c_polarity.eq(c),
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c_out.eq(0)
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).Else(
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c_out.eq(c ^ c_polarity)
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)
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]
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