/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef UFDT_TYPES_H
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#define UFDT_TYPES_H
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#include <libfdt.h>
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/* it has type : struct ufdt_node** */
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#define for_each(it, node) \
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if ((node) != NULL) \
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for ((it) = (node)->nodes; (it) != (node)->nodes + (node)->mem_size; ++(it)) \
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if (*(it))
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#define for_each_child(it, node) \
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if (ufdt_node_tag(node) == FDT_BEGIN_NODE) \
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for ((it) = &(((struct ufdt_node_fdt_node *)(node))->child); *(it); \
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(it) = &((*(it))->sibling))
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#define for_each_prop(it, node) \
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for_each_child(it, node) if (ufdt_node_tag(*(it)) == FDT_PROP)
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#define for_each_node(it, node) \
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for_each_child(it, node) if (ufdt_node_tag(*(it)) == FDT_BEGIN_NODE)
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/*
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* Gets prop name from FDT requires complicated manipulation.
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* To avoid the manipulation, the *name pointer in ufdt_node_fdt_prop
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* is pointed to the final destination of the prop name in FDT.
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* For the FDT_BEGIN_NODE name, it can be obtained from FDT directly.
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*/
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#define ufdt_node_name(node) \
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((ufdt_node_tag(node) == FDT_BEGIN_NODE) \
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? (((const struct fdt_node_header *)((node)->fdt_tag_ptr))->name) \
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: (((const struct ufdt_node_fdt_prop *)(node))->name))
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#define ufdt_node_tag(node) \
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((node) ? fdt32_to_cpu(*(node)->fdt_tag_ptr) : FDT_END)
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struct ufdt_node {
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fdt32_t *fdt_tag_ptr;
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struct ufdt_node *sibling;
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};
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struct ufdt_node_fdt_prop {
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struct ufdt_node parent;
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const char *name;
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};
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struct ufdt_node_fdt_node {
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struct ufdt_node parent;
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struct ufdt_node *child;
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struct ufdt_node **last_child_p;
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};
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struct ufdt_phandle_table_entry {
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uint32_t phandle;
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struct ufdt_node *node;
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};
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struct ufdt_static_phandle_table {
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int len;
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struct ufdt_phandle_table_entry *data;
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};
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struct ufdt {
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void **fdtps;
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int mem_size_fdtps;
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int num_used_fdtps;
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struct ufdt_node *root;
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struct ufdt_static_phandle_table phandle_table;
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};
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struct ufdt_node_pool;
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#endif /* UFDT_TYPES_H */
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