93 lines
2.8 KiB
Python
93 lines
2.8 KiB
Python
#
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# Copyright (c) 2018 Bobby Noelte
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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from extract.globals import *
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from extract.directive import DTDirective
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##
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# @brief Manage interrupts directives.
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#
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class DTInterrupts(DTDirective):
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##
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# @brief Extract interrupts
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#
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# @param node_path Path to node owning the
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# interrupts definition.
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# @param prop compatible property name
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# @param names (unused)
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# @param def_label Define label string of node owning the
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# compatible definition.
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#
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def extract(self, node_path, prop, names, def_label):
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vals = reduced[node_path]['props'][prop]
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if not isinstance(vals, list):
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vals = [vals]
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irq_parent = parent_irq_node(node_path)
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if not irq_parent:
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err(node_path + " has no interrupt-parent")
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l_base = [def_label]
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index = 0
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while vals:
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prop_def = {}
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prop_alias = {}
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l_idx = [str(index)]
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if names:
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name = [str_to_label(names.pop(0))]
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else:
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name = []
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cell_yaml = get_binding(irq_parent)
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l_cell_prefix = ['IRQ']
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for i in range(reduced[irq_parent]['props']['#interrupt-cells']):
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l_cell_name = [cell_yaml['#cells'][i].upper()]
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if l_cell_name == l_cell_prefix:
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l_cell_name = []
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full_name = '_'.join(l_base + l_cell_prefix + l_idx + l_cell_name)
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prop_def[full_name] = vals.pop(0)
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add_compat_alias(node_path,
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'_'.join(l_cell_prefix + l_idx + l_cell_name),
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full_name, prop_alias)
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if name:
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alias_list = l_base + l_cell_prefix + name + l_cell_name
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prop_alias['_'.join(alias_list)] = full_name
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add_compat_alias(node_path,
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'_'.join(l_cell_prefix + name + l_cell_name),
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full_name, prop_alias)
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if node_path in aliases:
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add_prop_aliases(
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node_path,
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lambda alias:
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'_'.join([str_to_label(alias)] +
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l_cell_prefix + name + l_cell_name),
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full_name,
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prop_alias)
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index += 1
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insert_defs(node_path, prop_def, prop_alias)
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def parent_irq_node(node_path):
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while node_path:
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if 'interrupt-parent' in reduced[node_path]['props']:
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return phandles[reduced[node_path]['props']['interrupt-parent']]
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node_path = get_parent_path(node_path)
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return None
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##
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# @brief Management information for interrupts.
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interrupts = DTInterrupts()
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