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framebuffer: use ASMI reader factory

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This commit is contained in:
Sebastien Bourdeauducq 2012-07-12 18:56:17 +02:00
parent 73a58977e4
commit 58d1e8a541
1 changed files with 4 additions and 21 deletions
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25
milkymist/framebuffer/__init__.py
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@ -207,24 +207,6 @@ def sim_fifo_gen():
print("H/V:" + str(t.value["hsync"]) + str(t.value["vsync"])
+ " " + str(t.value["r"]) + " " + str(t.value["g"]) + " " + str(t.value["b"]))
class FakeDMA(Actor):
def __init__(self, port):
self.port = port
super().__init__(
("address", Sink, [("a", BV(self.port.hub.aw))]),
("data", Source, [("d", BV(self.port.hub.dw))]))
def get_fragment(self):
pixel = Signal(BV(32))
comb = [
self.endpoints["address"].ack.eq(1),
self.endpoints["data"].stb.eq(1),
self.token("data").d.eq(Replicate(pixel, 4))
]
sync = [
If(self.endpoints["data"].ack, pixel.eq(pixel + 1))
]
return Fragment(comb, sync)
class Framebuffer:
def __init__(self, address, asmiport, simulation=False):
@ -237,8 +219,8 @@ class Framebuffer:
fi = ActorNode(_FrameInitiator(asmi_bits, length_bits, alignment_bits))
adrloop = ActorNode(misc.IntSequence(length_bits, asmi_bits))
adrbuffer = ActorNode(plumbing.Buffer)
#dma = ActorNode(dma_asmi.SequentialReader(asmiport))
dma = ActorNode(FakeDMA(asmiport))
dma = ActorNode(dma_asmi.Reader(asmiport))
datbuffer = ActorNode(plumbing.Buffer)
cast = ActorNode(structuring.Cast(asmiport.hub.dw, packed_pixels))
unpack = ActorNode(structuring.Unpack(pack_factor, _pixel_layout))
vtg = ActorNode(VTG())
@ -251,7 +233,8 @@ class Framebuffer:
g.add_connection(fi, adrloop, source_subr=["length", "base"])
g.add_connection(adrloop, adrbuffer)
g.add_connection(adrbuffer, dma)
g.add_connection(dma, cast)
g.add_connection(dma, datbuffer)
g.add_connection(datbuffer, cast)
g.add_connection(cast, unpack)
g.add_connection(unpack, vtg, sink_ep="pixels")
g.add_connection(fi, vtg, sink_ep="timing", source_subr=[