126 lines
4.2 KiB
Python
126 lines
4.2 KiB
Python
"""
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Copyright (c) 2020 Alex Forencich
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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"""
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from .stream import define_stream
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# Write address channel
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AxiLiteAWBus, AxiLiteAWTransaction, AxiLiteAWSource, AxiLiteAWSink, AxiLiteAWMonitor = define_stream("AxiLiteAW",
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signals=["awaddr", "awprot", "awvalid", "awready"],
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signal_widths={"awprot": 3}
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)
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# Write data channel
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AxiLiteWBus, AxiLiteWTransaction, AxiLiteWSource, AxiLiteWSink, AxiLiteWMonitor = define_stream("AxiLiteW",
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signals=["wdata", "wstrb", "wvalid", "wready"]
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)
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# Write response channel
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AxiLiteBBus, AxiLiteBTransaction, AxiLiteBSource, AxiLiteBSink, AxiLiteBMonitor = define_stream("AxiLiteB",
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signals=["bresp", "bvalid", "bready"],
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signal_widths={"bresp": 2}
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)
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# Read address channel
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AxiLiteARBus, AxiLiteARTransaction, AxiLiteARSource, AxiLiteARSink, AxiLiteARMonitor = define_stream("AxiLiteAR",
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signals=["araddr", "arprot", "arvalid", "arready"],
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signal_widths={"arprot": 3}
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)
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# Read data channel
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AxiLiteRBus, AxiLiteRTransaction, AxiLiteRSource, AxiLiteRSink, AxiLiteRMonitor = define_stream("AxiLiteR",
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signals=["rdata", "rresp", "rvalid", "rready"],
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signal_widths={"rresp": 2}
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)
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class AxiLiteWriteBus:
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def __init__(self, aw=None, w=None, b=None):
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self.aw = aw
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self.w = w
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self.b = b
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@classmethod
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def from_entity(cls, entity, **kwargs):
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aw = AxiLiteAWBus.from_entity(entity, **kwargs)
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w = AxiLiteWBus.from_entity(entity, **kwargs)
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b = AxiLiteBBus.from_entity(entity, **kwargs)
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return cls(aw, w, b)
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@classmethod
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def from_prefix(cls, entity, prefix, **kwargs):
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aw = AxiLiteAWBus.from_prefix(entity, prefix, **kwargs)
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w = AxiLiteWBus.from_prefix(entity, prefix, **kwargs)
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b = AxiLiteBBus.from_prefix(entity, prefix, **kwargs)
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return cls(aw, w, b)
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@classmethod
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def from_channels(cls, aw, w, b):
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return cls(aw, w, b)
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class AxiLiteReadBus:
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def __init__(self, ar=None, r=None):
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self.ar = ar
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self.r = r
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@classmethod
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def from_entity(cls, entity, **kwargs):
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ar = AxiLiteARBus.from_entity(entity, **kwargs)
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r = AxiLiteRBus.from_entity(entity, **kwargs)
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return cls(ar, r)
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@classmethod
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def from_prefix(cls, entity, prefix, **kwargs):
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ar = AxiLiteARBus.from_prefix(entity, prefix, **kwargs)
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r = AxiLiteRBus.from_prefix(entity, prefix, **kwargs)
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return cls(ar, r)
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@classmethod
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def from_channels(cls, ar, r):
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return cls(ar, r)
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class AxiLiteBus:
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def __init__(self, write=None, read=None, **kwargs):
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self.write = write
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self.read = read
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@classmethod
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def from_entity(cls, entity, **kwargs):
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write = AxiLiteWriteBus.from_entity(entity, **kwargs)
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read = AxiLiteReadBus.from_entity(entity, **kwargs)
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return cls(write, read)
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@classmethod
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def from_prefix(cls, entity, prefix, **kwargs):
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write = AxiLiteWriteBus.from_prefix(entity, prefix, **kwargs)
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read = AxiLiteReadBus.from_prefix(entity, prefix, **kwargs)
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return cls(write, read)
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@classmethod
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def from_channels(cls, aw, w, b, ar, r):
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write = AxiLiteWriteBus.from_channels(aw, w, b)
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read = AxiLiteReadBus.from_channels(ar, r)
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return cls(write, read)
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