46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
from typing import TYPE_CHECKING, Optional
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import inspect
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import os
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import jinja2 as jj
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from ..utils import get_always_ff_event, clog2, is_pow2
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if TYPE_CHECKING:
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from ..exporter import RegblockExporter
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from systemrdl import SignalNode
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class CpuifBase:
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# Path is relative to class that defines it
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template_path = ""
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def __init__(self, exp:'RegblockExporter', cpuif_reset:Optional['SignalNode'], data_width:int=32, addr_width:int=32):
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self.exp = exp
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self.reset = cpuif_reset
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self.data_width = data_width
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self.addr_width = addr_width
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@property
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def port_declaration(self) -> str:
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raise NotImplementedError()
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def get_implementation(self) -> str:
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class_dir = os.path.dirname(inspect.getfile(self.__class__))
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loader = jj.FileSystemLoader(class_dir)
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jj_env = jj.Environment(
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loader=loader,
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undefined=jj.StrictUndefined,
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)
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context = {
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"cpuif": self,
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"get_always_ff_event": lambda resetsignal : get_always_ff_event(self.exp.dereferencer, resetsignal),
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"get_resetsignal": self.exp.dereferencer.get_resetsignal,
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"clog2": clog2,
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"is_pow2": is_pow2,
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}
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template = jj_env.get_template(self.template_path)
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return template.render(context)
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