Zack Buhman
25e299feba
This is a reshuffling of filenames, extensions, paths, make rules, just because I felt like it.
168 lines
4.8 KiB
Python
168 lines
4.8 KiB
Python
from dataclasses import dataclass
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from typing import Union
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import sys
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from sh7091 import read_input
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from generate import renderer
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@dataclass
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class CommandNamespace:
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name: str
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issuing_right: set[str]
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command_code: int
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data_size: int
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def command_namespace(namespace: CommandNamespace,
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data_fields: list[tuple[str, tuple[int, str]]]):
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yield f"namespace {namespace.name} {{"
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yield f"constexpr uint32_t command_code = {hex(namespace.command_code)};"
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yield ""
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if namespace.data_size == (0, None):
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assert data_fields == []
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yield "struct data_fields {"
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yield "};"
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else:
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length, variable = namespace.data_size
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if variable is not None:
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assert variable.lower() == "n"
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yield "template <typename T>"
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yield "struct data_fields {"
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for field_name, field_size in data_fields:
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const, var = field_size
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if var is None:
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if const in {1, 2, 4}:
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bits = const * 8
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yield f"uint{bits}_t {field_name};"
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else:
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yield f"uint8_t {field_name}[{const}];"
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elif const == 0:
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assert var == "n"
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yield f"T {field_name};"
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else:
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yield f"uint8_t {field_name}[{const} + {var.upper()}];"
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yield "};"
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yield ""
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if variable is not None:
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assert variable == "n"
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yield f"static_assert((sizeof (struct data_fields<char[0]>)) == {length});"
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else:
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yield f"static_assert((sizeof (struct data_fields)) == {length});"
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yield "}"
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yield ""
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def parse_data_size(data_size, base, multiple) -> tuple[int, str]:
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def parse_term(s):
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try:
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return int(s, base) * multiple
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except ValueError:
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div = s.split("/")
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if len(div) == 1:
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# this must be a variable
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assert multiple == 1, s
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a, = div
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return a
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elif len(div) == 2:
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# this must be a variable divided by a number
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a, b = div
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b = int(b, 10)
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assert b == multiple
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return a
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else:
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assert False, div
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_terms = data_size.split("+")
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terms = tuple(parse_term(term) for term in _terms)
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if len(terms) == 1:
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term, = terms
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if type(term) == str:
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return (0, term)
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elif type(term) == int:
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return (term, None)
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else:
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assert False, (_terms, terms)
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elif len(terms) == 2:
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assert type(terms[0]) == int
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assert type(terms[1]) == str
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return terms
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else:
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assert False, (_terms, terms)
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def new_aggregator():
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last_name = None
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namespace = None
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data_fields = []
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all_names = set()
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def process_row(row):
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nonlocal last_name
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nonlocal namespace
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nonlocal data_fields
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if row["name"] == "":
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assert all(v == "" for v in row.values()), row
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return
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if row["name"] != last_name:
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if namespace is not None:
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yield namespace, data_fields
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else:
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assert data_fields == []
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assert row["name"] != ""
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last_name = row["name"]
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issuing_right = set(row["issuing_right"].split(", "))
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assert all(s in {"host", "peripheral"} for s in issuing_right), row
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assert issuing_right != set(), issuing_right
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data_size = parse_data_size(row["data_size"], 16, 4)
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namespace = CommandNamespace(
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name = row["name"],
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issuing_right = issuing_right,
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command_code = int(row["command_code"], 16),
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data_size = data_size,
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)
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data_fields = []
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# fall through
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assert last_name is None or row["name"] == last_name, (row["name"], last_name)
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if row["data_field"] != "":
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assert row["data_field_size"] != ""
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data_fields.append((
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row["data_field"],
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parse_data_size(row["data_field_size"], 10, 1)
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))
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def terminate():
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nonlocal namespace
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nonlocal data_fields
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if namespace is not None:
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yield namespace, data_fields
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def process(rows):
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for row in rows:
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yield from process_row(row)
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yield from terminate()
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return process
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def headers():
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yield "#include <cstdint>"
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yield ""
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input_file = sys.argv[1]
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rows = read_input(input_file)
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process = new_aggregator()
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render, out = renderer()
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render(headers())
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for namespace, data_fields in process(rows):
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render(command_namespace(namespace, data_fields))
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sys.stdout.write(out.getvalue())
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