soc/interconnect/axi/AXIInterface: add optional tkeep.
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018094abb2
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126dd267d6
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@ -258,10 +258,13 @@ class AXILiteInterface:
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# AXI Stream Definition ----------------------------------------------------------------------------
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# AXI Stream Definition ----------------------------------------------------------------------------
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class AXIStreamInterface(stream.Endpoint):
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class AXIStreamInterface(stream.Endpoint):
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def __init__(self, data_width=32, user_width=0):
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def __init__(self, data_width=32, keep_width=0, user_width=0):
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self.data_width = data_width
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self.data_width = data_width
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self.keep_width = keep_width
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self.user_width = user_width
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self.user_width = user_width
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payload_layout = [("data", data_width)]
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payload_layout = [("data", data_width)]
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if self.keep_width:
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payload_layout += [("keep", keep_width)]
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param_layout = []
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param_layout = []
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if self.user_width:
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if self.user_width:
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param_layout += [("user", user_width)]
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param_layout += [("user", user_width)]
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@ -274,6 +277,8 @@ class AXIStreamInterface(stream.Endpoint):
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Subsignal("tready", Pins(1)),
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Subsignal("tready", Pins(1)),
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Subsignal("tdata", Pins(self.data_width)),
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Subsignal("tdata", Pins(self.data_width)),
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]
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]
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if self.keep_width:
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subsignals += [Subsignal("tkeep", Pins(self.keep_width))]
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if self.user_width:
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if self.user_width:
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subsignals += [Subsignal("tuser", Pins(self.user_width))]
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subsignals += [Subsignal("tuser", Pins(self.user_width))]
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ios = [(bus_name , 0) + tuple(subsignals)]
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ios = [(bus_name , 0) + tuple(subsignals)]
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@ -287,6 +292,8 @@ class AXIStreamInterface(stream.Endpoint):
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r.append(self.ready.eq(pads.tready))
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r.append(self.ready.eq(pads.tready))
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r.append(pads.tlast.eq(self.last))
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r.append(pads.tlast.eq(self.last))
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r.append(pads.tdata.eq(self.data))
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r.append(pads.tdata.eq(self.data))
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if self.keep_width:
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r.append(pads.tkeep.eq(self.keep))
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if self.user_width:
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if self.user_width:
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r.append(pads.tuser.eq(self.user))
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r.append(pads.tuser.eq(self.user))
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if mode == "slave":
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if mode == "slave":
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@ -294,6 +301,8 @@ class AXIStreamInterface(stream.Endpoint):
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r.append(pads.tready.eq(self.ready))
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r.append(pads.tready.eq(self.ready))
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r.append(self.last.eq(pads.tlast))
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r.append(self.last.eq(pads.tlast))
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r.append(self.data.eq(pads.tdata))
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r.append(self.data.eq(pads.tdata))
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if self.keep_width:
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r.append(self.keep.eq(pads.tkeep))
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if self.user_width:
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if self.user_width:
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r.append(self.user.eq(pads.tuser))
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r.append(self.user.eq(pads.tuser))
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return r
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return r
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