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5cf9ac714c
With AML templates for devices in the board XML, the parser now needs to be able to parse a stream as an arbitrary object. This patch adds the `parse_tree` method to the acpiparser.aml.parser module for this purpose. Tracked-On: #6287 Signed-off-by: Junjie Mao <junjie.mao@intel.com>
49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
# Copyright (C) 2021 Intel Corporation. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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import os
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import logging
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from acpiparser.aml.stream import Stream
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from acpiparser.aml import parser
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from acpiparser.aml.tree import Tree
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from acpiparser.aml.context import Context
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from acpiparser.aml.interpreter import ConcreteInterpreter
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from acpiparser.aml.visitors import ConditionallyUnregisterSymbolVisitor
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def DSDT(val):
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table_dir = os.path.dirname(val)
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if not table_dir:
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table_dir = "."
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ssdt = filter(lambda x: x.startswith("SSDT"), os.listdir(table_dir))
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tables = [val] + list(map(lambda x: os.path.join(table_dir, x), ssdt))
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context = Context()
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try:
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for t in tables:
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logging.info(f"Loading {t}")
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context.switch_stream(t)
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tree = Tree()
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parser.AMLCode.parse(context, tree)
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tree = parser.DeferredExpansion(context).transform(tree)
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context.trees[os.path.basename(t)] = tree
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except Exception as e:
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context.current_stream.dump()
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raise
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context.skip_external_on_lookup()
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visitor = ConditionallyUnregisterSymbolVisitor(ConcreteInterpreter(context))
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for tree in context.trees.values():
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visitor.visit(tree)
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return context
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def parse_tree(label, data):
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context = Context()
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context.switch_stream(data)
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tree = Tree()
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getattr(parser, label).parse(context, tree)
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tree = parser.DeferredExpansion(context).transform(tree)
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return tree
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