- ("hres", BV(_hbits)),
- ("hsync_start", BV(_hbits)),
- ("hsync_end", BV(_hbits)),
- ("hscan", BV(_hbits)),
- ("vres", BV(_vbits)),
- ("vsync_start", BV(_vbits)),
- ("vsync_end", BV(_vbits)),
- ("vscan", BV(_vbits)),
- ("base", BV(asmi_bits)),
- ("length", BV(length_bits))
- ]
- super().__init__(("frame", Source, layout))
-
- def get_registers(self):
- return [self._enable,
- self._hres, self._hsync_start, self._hsync_end, self._hscan,
- self._vres, self._vsync_start, self._vsync_end, self._vscan,
- self._base, self._length]
-
- def get_fragment(self):
- # TODO: make address updates atomic
- token = self.token("frame")
- stb = self.endpoints["frame"].stb
- ack = self.endpoints["frame"].ack
- comb = [
- self.busy.eq(stb),
- token.hres.eq(self._hres.field.r),
- token.hsync_start.eq(self._hsync_start.field.r),
- token.hsync_end.eq(self._hsync_end.field.r),
- token.hscan.eq(self._hscan.field.r),
- token.vres.eq(self._vres.field.r),
- token.vsync_start.eq(self._vsync_start.field.r),
- token.vsync_end.eq(self._vsync_end.field.r),
- token.vscan.eq(self._vscan.field.r),
- token.length.eq(self._length.field.r[self._alignment_bits:])
- ]
- sync = [
- If(ack | ~stb,
- stb.eq(self._enable.field.r),
- token.base.eq(self._base.field.r[self._alignment_bits:])
- )
+ ("hres", BV(_hbits), 640),
+ ("hsync_start", BV(_hbits), 656),
+ ("hsync_end", BV(_hbits), 752),
+ ("hscan", BV(_hbits), 799),
+
+ ("vres", BV(_vbits), 480),
+ ("vsync_start", BV(_vbits), 492),
+ ("vsync_end", BV(_vbits), 494),
+ ("vscan", BV(_vbits), 524),
+
+ ("base", BV(asmi_bits), 0, alignment_bits),
+ ("length", BV(length_bits), 640*480*4, alignment_bits)